GE Fanuc Automation

Computer Numerical Control Products

Servo Motor β Series

Descriptions Manual

GFZ-65232EN/03 December 2002

 GFL-001
Warnings, Cautions, and Notes
as Used in this Publication

Warning
Warning notices are used in this publication to emphasize that hazardous voltages, currents,
temperatures, or other conditions that could cause personal injury exist in this equipment or
may be associated with its use.
In situations where inattention could cause either personal injury or damage to equipment, a
Warning notice is used.

Caution
Caution notices are used where equipment might be damaged if care is not taken.

Note
Notes merely call attention to information that is especially significant to understanding and
operating the equipment.

This document is based on information available at the time of its publication. While efforts
have been made to be accurate, the information contained herein does not purport to cover all
details or variations in hardware or software, nor to provide for every possible contingency in
connection with installation, operation, or maintenance. Features may be described herein
which are not present in all hardware and software systems. GE Fanuc Automation assumes
no obligation of notice to holders of this document with respect to changes subsequently made.

GE Fanuc Automation makes no representation or warranty, expressed, implied, or statutory

with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or
usefulness of the information contained herein. No warranties of merchantability or fitness for
purpose shall apply.

©Copyright 2002 GE Fanuc Automation North America, Inc.

All Rights Reserved.
Ȧ No part of this manual may be reproduced in any form.
Ȧ All specifications and designs are subject to change without notice.

In this manual we have tried as much as possible to describe all the

various matters.
However, we cannot describe all the matters which must not be done,
or which cannot be done, because there are so many possibilities.
Therefore, matters which are not especially described as possible in
this manual should be regarded as ”impossible”.
B-65232EN/03 SAFETY PRECAUTIONS

SAFETY PRECAUTIONS
This "Safety Precautions" section describes the precautions which
must be observed to ensure safety when using FANUC servo motors
and servo amplifiers. Users of any servo motor or amplifier model are
requested to read the "Safety Precautions" carefully before using the
servo motor or amplifier.
The users are also requested to read an applicable specification manual
carefully and understand each function of the motor or amplifier for
correct use.
The users are basically forbidden to do any behavior or action not
mentioned in the "Safety Precautions." They are invited to ask FANUC
previously about what behavior or action is prohibited.

Contents
1.1 DEFINITION OF WARNING, CAUTION, AND NOTE.........s-2
1.2 FANUC SERVO MOTOR β SERIES.......................................s-3
1.2.1Warning ...........................................................................s-3
1.2.2Caution ...........................................................................s-6
1.2.3Note ...........................................................................s-7
1.3 FANUC SERVO AMPLIFIER β SERIES ................................s-9
1.3.1Warnings and Cautions Relating to Mounting ..................s-9
1.3.1.1 Warning.............................................................s-9
1.3.1.2 Caution ............................................................s-11
1.3.1.3 Note .................................................................s-13
1.3.2Warnings and Cautions Relating to a Pilot Run..............s-14
1.3.2.1 Warning...........................................................s-14
1.3.2.2 Caution ............................................................s-15
1.3.3Warnings and Cautions Relating to Maintenance ...........s-16
1.3.3.1 Warning...........................................................s-16
1.3.3.2 Caution ............................................................s-18
1.3.3.3 Note .................................................................s-19

s-1
SAFETY PRECAUTIONS B-65232EN/03

1.1 DEFINITION OF WARNING, CAUTION, AND NOTE

This manual includes safety precautions for protecting the user and
preventing damage to the machine. Precautions are classified into
Warning and Caution according to their bearing on safety. Also,
supplementary information is described as a Note. Read the Warning,
Caution, and Note thoroughly before attempting to use the machine.

WARNING
Applied when there is a danger of the user being
injured or when there is a damage of both the user
being injured and the equipment being damaged if
the approved procedure is not observed.

CAUTION
Applied when there is a danger of the equipment
being damaged, if the approved procedure is not
observed.

NOTE
The Note is used to indicate supplementary
information other than Warning and Caution.

* Read this manual carefully, and store it in a safe place.

s-2
B-65232EN/03 SAFETY PRECAUTIONS

1.2 FANUC SERVO MOTOR β SERIES

1.2.1 Warning

WARNING
- Be safely dressed when handling a motor.
Wear safety shoes or gloves when handling a motor as you may
get hurt on any edge or protrusion on it or electric shocks.

- Use a crane or lift to move a motor from one place to another.

Motors are heavy. When moving them, use a crane or lift as
required. (For the weight of motors, refer to their respective
specification manuals.)
When moving a motor using a crane or lift, use a hanging bolt if
the motor has a corresponding tapped hole, or textile rope if it has
no tapped hole.
If a motor is attached with a machine or any other heavy stuff, do
not use a hanging bolt to move the motor as the hanging bolt
and/or motor may get broken.
When moving a motor, be careful not to apply excessive force to
its windings as the windings may break and/or their insulation
may deteriorate.

- Do not touch a motor with a wet hand.

A failure to observe this caution is very dangerous because you
may get electric shocks.

- Before starting to connect a motor to electric wires, make

sure they are isolated from an electric power source.
A failure to observe this caution is very dangerous because you
may get electric shocks.

- Do not bring any dangerous stuff near a motor.

Motors are connected to a power line, and may get hot. If a
flammable is placed near a motor, it may be ignited, catch fire, or
explode.

- Be sure to ground a motor frame.

To avoid electric shocks, be sure to connect the grounding
terminal in the terminal box to the grounding terminal of the
machine.

- Do not ground a motor power wire terminal or short-circuit it

to another power wire terminal.
A failure to observe this caution may cause electric shocks or a
burned wiring.
(*) Some motors require a special connection such as a winding
changeover. Refer to their respective motor specification
manuals for details.

s-3
SAFETY PRECAUTIONS B-65232EN/03

WARNING
- Connect power wires securely so that they will not get loose.
A failure to observe this caution may cause a wire to be
disconnected, resulting in a ground fault, short circuit, or electric
shock.

- Do not supply the power to the motor while any terminal is

exposed.
A failure to observe this caution is very dangerous because you
may get electric shocks if your body or any conductive stuff
touches an exposed terminal.

- Do not get close to a rotary section of a motor when it is

rotating.
A rotating part may catch your cloths or fingers. Before starting a
motor, ensure that there is no stuff that can fly away (such as a
key) on the motor.

- Before touching a motor, shut off the power to it.

Even if a motor is not rotating, there may be a voltage across the
terminals of the motor.
Especially before touching a power supply connection, take
sufficient precautions.
Otherwise you may get electric shocks.

- Do not touch any terminal of a motor for a while (at least 5

minutes) after the power to the motor is shut off.
High voltage remains across power line terminals of a motor for a
while after the power to the motor is shut off. So, do not touch any
terminal or connect it to any other equipment. Otherwise, you may
get electric shocks or the motor and/or equipment may get
damaged.

- To drive a motor, use a specified amplifier and parameters.

An incorrect combination of a motor, amplifier, and parameters
may cause the motor to behave unexpectedly. This is dangerous,
and the motor may get damaged.

- Do not touch a regenerative discharge unit for a while (at

least 30 minutes) after the power to the motor is shut off.
A regenerative discharge unit may get hot when the motor is
running.
Do not touch the regenerative discharge unit before it gets cool
enough. Otherwise, you may get burned.

- Do not touch a motor when it is running or immediately after

it stops.
A motor may get hot when it is running. Do not touch the motor
before it gets cool enough. Otherwise, you may get burned.

s-4
B-65232EN/03 SAFETY PRECAUTIONS

- Ensure that motors and related components are mounted

securely.
If a motor or its component slips out of place or comes off when
the motor is running, it is very dangerous.

- Be careful not get your hair or cloths caught in a fan.

Be careful especially for a fan used to generate an inward air flow.
Be careful also for a fan even when the motor is stopped, because
it continues to rotate while the amplifier is turned on.

- When designing and assembling a machine tool, make it

compliant with EN60204-1.
To ensure the safety of the machine tool and satisfy European
standards, when designing and assembling a machine tool, make it
compliant with EN60204-1. For details of the machine tool, refer
to its specification manual.

s-5
SAFETY PRECAUTIONS B-65232EN/03

1.2.2 Caution

CAUTION
- FANUC motors are designed for use with machines. Do not
use them for any other purpose.
If a FANUC motor is used for an unintended purpose, it may
cause an unexpected symptom or trouble. If you want to use a
motor for an unintended purpose, previously consult with
FANUC.

- Ensure that a base or frame on which a motor is mounted is

strong enough.
Motors are heavy. If a base or frame on which a motor is mounted
is not strong enough, it is impossible to achieve the required
precision.

- Be sure to connect motor cables correctly.

An incorrect connection of a cable cause abnormal heat
generation, equipment malfunction, or failure. Always use a cable
with an appropriate current carrying capacity (or thickness). For
how to connect cables to motors, refer to their respective
specification manuals.

- Ensure that motors are cooled if they are those that require
forcible cooling.
If a motor that requires forcible cooling is not cooled normally, it
may cause a failure or trouble. For a fan-cooled motor, ensure that
it is not clogged or blocked with dust and dirt. For a liquid-cooled
motor, ensure that the amount of the liquid is appropriate and that
the liquid piping is not clogged.
For both types, perform regular cleaning and inspection.

- When attaching a component having inertia, such as a pulley,

to a motor, ensure that any imbalance between the motor and
component is minimized.
If there is a large imbalance, the motor may vibrates abnormally,
resulting in the motor being broken.

- Be sure to attach a key to a motor with a keyed shaft.

If a motor with a keyed shaft runs with no key attached, it may
impair torque transmission or cause imbalance, resulting in the
motor being broken.

s-6
B-65232EN/03 SAFETY PRECAUTIONS

1.2.3 Note

NOTE
- Do not step or sit on a motor.
If you step or sit on a motor, it may get deformed or broken. Do
not put a motor on another unless they are in packages.

- When storing a motor, put it in a dry (non-condensing) place

at room temperature (0 to 40°°C).
If a motor is stored in a humid or hot place, its components may
get damaged or deteriorated. In addition, keep a motor in such a
position that its shaft is held horizontal and its terminal box is at
the top.

- Do not remove a nameplate from a motor.

If a nameplate comes off, be careful not to lose it. If the nameplate
is lost, the motor becomes unidentifiable, resulting in
maintenance becoming impossible.
For a nameplate for a built-in spindle motor, keep the nameplate
with the spindle.

- Do not apply shocks to a motor or cause scratches to it.

If a motor is subjected to shocks or is scratched, its components
may be adversely affected, resulting in normal operation being
impaired. Be very careful when handling plastic portions, sensors,
and windings, because they are very liable to break. Especially,
avoid lifting a motor by pulling its plastic portion, winding, or
power cable.

- Do not conduct dielectric strength or insulation test for a

sensor.
Such a test can damage elements in the sensor.

- When testing the winding or insulation resistance of a motor,

satisfy the conditions stipulated in IEC60034.
Testing a motor under a condition severer than those specified in
IEC34 may damage the motor.

- Do not disassemble a motor.

Disassembling a motor may cause a failure or trouble in it.
If disassembly is in need because of maintenance or repair, please
contact a service representative of FANUC.

- Do not modify a motor.

Do not modify a motor unless directed by FANUC. Modifying a
motor may cause a failure or trouble in it.

s-7
SAFETY PRECAUTIONS B-65232EN/03

NOTE
- Use a motor under an appropriate environmental condition.
Using a motor in an adverse environment may cause a failure or
trouble in it.
Refer to their respective specification manuals for details of the
operating and environmental conditions for motors.

- Do not apply a commercial power source voltage directly to a

motor.
Applying a commercial power source voltage directly to a motor
may result in its windings being burned. Be sure to use a specified
amplifier for supplying voltage to the motor.

- For a motor with a terminal box, make a conduit hole for the
terminal box in a specified position.
When making a conduit hole, be careful not to break or damage
unspecified portions.
Refer to an applicable specification manual.

- Before using a motor, measure its winding and insulation

resistances, and make sure they are normal.
Especially for a motor that has been stored for a prolonged period
of time, conduct these checks. A motor may deteriorate depending
on the condition under which it is stored or the time during which
it is stored. For the winding resistances of motors, refer to their
respective specification manuals, or ask FANUC. For insulation
resistances, see the following table.

- To use a motor as long as possible, perform periodic

maintenance and inspection for it, and check its winding and
insulation resistances.
Note that extremely severe inspections (such as dielectric strength
tests) of a motor may damage its windings. For the winding
resistances of motors, refer to their respective specification
manuals, or ask FANUC. For insulation resistances, see the
following table.

MOTOR INSULATION RESISTANCE MEASUREMENT

Measure an insulation resistance between each winding and
motor frame using an insulation resistance meter (500 VDC).
Judge the measurements according to the following table.

Insulation resistance Judgment

100MΩ or higher Acceptable
The winding has begun deteriorating. There is no
10 to 100 MΩ problem with the performance at present. Be sure
to perform periodic inspection.
The winding has considerably deteriorated.
1 to 10 MΩ Special care is in need. Be sure to perform periodic
inspection.
Lower than 1 MΩ Unacceptable. Replace the motor.

s-8
B-65232EN/03 SAFETY PRECAUTIONS

1.3 FANUC SERVO AMPLIFIER β SERIES

1.3.1 Warnings and Cautions Relating to Mounting

1.3.1.1 Warning

WARNING
- Check the specification code of the amplifier.
Check that the delivered amplifier is as originally ordered.

- Mount a ground fault interrupter.

To guard against fire and electric shock, fit the factory power
supply or machine with a ground fault interrupter (designed for
use with an inverter).

- Securely ground the amplifier.

Securely connect the ground terminal and metal frame of the
amplifier and motor to a common ground plate of the power
magnetics cabinet.

- Be aware of the weight of the amplifier and other

components.
Control motor amplifiers and AC reactors are heavy. When
transporting them or mounting them in the cabinet, therefore, be
careful not to injured yourself or damage the equipment. Be
particularly carefull not to jam your fingers between the cabinet
and amplifier.

- Never ground or short-circuit either the power supply lines or

power lines.
Protect the lines from any stress such as bending. Handle the ends
appropriately.

- Ensure that the power supply lines, power lines, and signal
lines are securely connected.
A loose screw, loose connection, or the like will cause a motor
malfunction or overheating, or a ground fault.

- Insulate all exposed parts that are charged.

- Never touch the regenerative discharge resistor or radiator

directly.
The surface of the radiator and regenerative discharge unit
become extremely hot. Never touch them directly. An appropriate
structure should also be considered.

- Close the amplifier cover after completing the wiring.

Leaving the cover open presents a danger of electric shock.

s-9
SAFETY PRECAUTIONS B-65232EN/03

WARNING
- Do not disassemble the amplifier.

- Ensure that the cables used for the power supply lines and
power lines are of the appropriate diameter and temperature
ratings.

- Do not apply an excessively large force to plastic parts.

If a plastic section breaks, it may cause internal damage, thus
interfering with normal operation. The edge of a broken section is
likely to be sharp and, therefore, presents a risk of injury.

s-10
B-65232EN/03 SAFETY PRECAUTIONS

1.3.1.2 Caution

CAUTION
- Do not step or sit on the amplifier.
Also, do not stack unpacked amplifiers on top of each other.

- Use the amplifier in an appropriate environment.

See the allowable ambient temperatures and other requirements,
given in the corresponding descriptions.

- Protect the amplifier from corrosive or conductive mist or

drops of water.
Use a filter if necessary.

- Protect the amplifier from impact.

Do not place anything on the amplifier.

- Connect the power supply lines and power lines to the

appropriate terminals and connectors.

- Connect the signal lines to the appropriate connectors.

- Do not block the air inlet to the radiator.

A deposit of coolant, oil mist, or chips on the air inlet will result in
a reduction in the cooling efficiency. In some cases, the required
efficiency cannot be achieved. The deposit may also lead to a
reduction in the useful life of the semiconductors. Especially,
when outside air is drawn in, mount filters on both the air inlet and
outlet. These filters must be replaced regularly.
So, an easy-to-replace type of filter should be used.

- Before connecting the power supply wiring, check the supply

voltage.
Check that the supply voltage is within the range specified in this
manual, then connect the power supply lines.

- Ensure that the combination of motor and amplifier is

appropriate.

- Ensure that valid parameters are specified.

Specifying an invalid parameter for the combination of motor and
amplifier may not only prevent normal operation of the motor but
also result in damage to the amplifier.

- Ensure that the amplifier and peripheral equipment are

securely connected.
Check that the magnetic contactor, circuit breaker, and other
devices mounted outside the amplifier are securely connected to
each other and that those devices are securely connected to the
amplifier.

s-11
SAFETY PRECAUTIONS B-65232EN/03

CAUTION
- Check that the amplifier is securely mounted in the power
magnetics cabinet.
If any clearance is left between the power magnetics cabinet and
the surface on which the amplifier is mounted, dust entering the
gap may build up and prevent the normal operation of the
amplifier.

- Apply appropriate countermeasures against noise.

Adequate countermeasures against noise are required to maintain
normal operation of the amplifier. For example, signal lines must
be routed away from power supply lines and power lines.

s-12
B-65232EN/03 SAFETY PRECAUTIONS

1.3.1.3 Note

NOTE
- Keep the nameplate clearly visible.

- Keep the legend on the nameplate clearly visible.

- After unpacking the amplifier, carefully check for any

damage.

- Mount the amplifier in a location where it can be easily

accessed periodic inspection and daily maintenance.

- Leave sufficient space around the machine to enable

maintenance to be performed easily.
Do not place any heavy objects such that they would interfere
with the opening of the doors.

- Keep the parameter table and spare parts at hand.

Also, keep the specifications at hand. These items must be stored
in a location where they can be retrieved immediately.

- Provide adequate shielding.

A cable to be shielded must be securely connected to the ground
plate, using a cable clamp or the like.

s-13
SAFETY PRECAUTIONS B-65232EN/03

1.3.2 Warnings and Cautions Relating to a Pilot Run

1.3.2.1 Warning

WARNING
- Before turning on the power, check that the cables connected
to the power magnetics cabinet and amplifier, as well as the
power lines and power supply lines, are securely connected.
Also, check that no lines are slack.

- Before turning on the power, ensure that the power magnetics

cabinet is securely grounded.

- Before turning on the power, check that the door of the power
magnetics cabinet and all other doors are closed.
Ensure that the door of the power magnetics cabinet containing
the amplifier, and all other doors, are securely closed. During
operation, all doors must be closed and locked.

- Apply extreme caution if the door of the power magnetics

cabinet or another door must be opened.
Only a person trained in the maintenance of the corresponding
machine or equipment should open the door, and only after
shutting off the power supply to the power magnetics cabinet (by
opening both the input circuit breaker of the power magnetics
cabinet and the factory switch used to supply power to the
cabinet). If the machine must be operated with the door open to
enable adjustment or for some other purpose, the operator must
keep his or her hands and tools well away from any dangerous
voltages. Such work must be done only by a person trained in the
maintenance of the machine or equipment.

- When operating the machine for the first time, check that the
machine operates as instructed.
To check whether the machine operates as instructed, first specify
a small value for the motor, then increase the value gradually. If
the motor operates abnormally, perform an emergency stop
immediately.

- After turning on the power, check the operation of the

emergency stop circuit.
Press the emergency stop button to check that the motor stops
immediately, and that the power being supplied to the amplifier is
shut off by the magnetic contactor.

- Before opening a door or protective cover of a machine to

enable adjustment of the machine, first place the machine in
the emergency stop state and check that the motor has
stopped.

s-14
B-65232EN/03 SAFETY PRECAUTIONS

1.3.2.2 Caution

CAUTION
- Note whether an alarm status relative to the amplifier is
displayed at power-up or during operation.
If an alarm is displayed, take appropriate action as explained in
the maintenance manual. If the work to be done requires that the
door of the power magnetics cabinet be left open, the work must
be carried out by a person trained in the maintenance of the
machine or equipment. Note that if some alarms are forcibly reset
to enable operation to continue, the amplifier may be damaged.
Take appropriate action according to the contents of the alarm.

- Before operating the motor for the first time, mount and
adjust the position and speed sensors.
Following the instructions given in the maintenance manual,
adjust the position and speed sensors for the spindle so that an
appropriate waveform is obtained.
If the sensors are not properly adjusted, the motor may not rotate
normally or the spindle may fail to stop as desired.

- If the motor makes any abnormal noise or vibration while

operating, stop it immediately.
Note that if operation is continued in spite of there being some
abnormal noise or vibration, the amplifier may be damaged. Take
appropriate corrective action, then resume operation.

- Observe the ambient temperature and output rating

requirements.
The continuous output rating or continuous operation period of
some amplifiers may fall as the ambient temperature increases. If
the amplifier is used continuously with an excessive load applied,
the amplifier may be damaged.

- Unless otherwise specified, do not insert or remove any

connector while the power is turned on. Otherwise, the
amplifier may fail.

s-15
SAFETY PRECAUTIONS B-65232EN/03

1.3.3 Warnings and Cautions Relating to Maintenance

1.3.3.1 Warning

WARNING
- Read the maintenance manual carefully and ensure that you
are totally familiar with its contents.
The maintenance manual describes daily maintenance and the
procedures to be followed in the event of an alarm being issued.
The operator must be familiar with these descriptions.

- Notes on replacing a fuse or PC board

1) Before starting the replacement work, ensure that the circuit
breaker protecting the power magnetics cabinet is open.
2) Check that the red LED that indicates that charging is in
progress is not lit.
The position of the charging LED on each model of amplifier
is given in this manual. While the LED is lit, hazardous
voltages are present inside the unit, and thus there is a danger
of electric shock.
3) Some PC board components become extremely hot. Be
careful not to touch these components.
4) Ensure that a fuse having an appropriate rating is used.
5) Check the specification code of a PC board to be replaced. If
a modification drawing number is indicated, contact FANUC
before replacing the PC board.
Also, before and after replacing a PC board, check its pin
settings.
6) After replacing the fuse, ensure that the screws are firmly
tightened. For a socket-type fuse, ensure that the fuse is
inserted correctly.
7) After replacing the PC board, ensure that it is securely
connected.
8) Ensure that all power lines, power supply lines, and
connectors are securely connected.

- Take care not to lose any screws.

When removing the case or PC board, take care not to lose any
screws. If a screw is lost inside the nit and the power is turned on,
the machine may be damaged.

s-16
B-65232EN/03 SAFETY PRECAUTIONS

WARNING
- Notes on replacing the battery of the absolute pulse coder
Replace the battery only while the power is on. If the battery is
replaced while the power is turned off, the stored absolute
positioning data will be lost. Some series servo amplifier modules
have batteries in their servo amplifiers. To replace the battery of
any of those models, observe the following procedure: Open the
door of the power magnetics cabinet; Leave the control power of
the power supply module on; Place the machine in the emergency
stop state so that the power being input to the amplifier is shut off;
Then, replace the battery. Replacement work should be done only
by a person who is trained in the related maintenance and safety
requirements. The power magnetics cabinet in which the servo
amplifier is mounted has a high-voltage section. This section
presents a severe risk of electric shock.

- Check the number of any alarm.

If the machine stops upon an alarm being issued, check the alarm
number. Some alarms indicate that a component must be replaced.
If the power is reconnected without first replacing the failed
component, another component may be damaged, making it
difficult to locate the original cause of the alarm.

- Before resetting an alarm, ensure that the original cause of

the alarm has been removed.

- Contact FANUC whenever a question relating to

maintenance arises.

- Notes on removing the amplifier

Before removing the amplifier, first ensure that the power is shut
off. Be careful not to jam your fingers between the power
magnetics cabinet and amplifier.

s-17
SAFETY PRECAUTIONS B-65232EN/03

1.3.3.2 Caution

CAUTION
- Ensure that all required components are mounted.
When replacing a component or PC board, check that all
components, including the snubber capacitor, are correctly
mounted. If the snubber capacitor is not mounted, for example, the
IPM will be damaged.

- Tighten all screws firmly.

- Check the specification code of the fuse, PC board, and other

components.
When replacing a fuse or PC board, first check the specification
code of the fuse or PC board, then mount it in the correct position.
The machine will not operate normally if a fuse or PC board
having other than the correct specification code is mounted, or if a
fuse or PC board is mounted in the wrong position.

- Mount the correct cover.

The cover on the front of the amplifier carries a label indicating a
specification code. When mounting a previously removed front
cover, take care to mount it on the unit from which it was
removed.

- Notes on cleaning the heat sink and fan

1) A dirty heat sink or fan results in reduced semiconductor
cooling efficiency, which degrades reliability. Periodic
cleaning is necessary.
2) Using compressed air for cleaning scatters the dust. A
deposit of conductive dust on the amplifier or peripheral
equipment will result in a failure.
3) To clean the heat sink, do so only after turning the power off
and ensuring that the heat sink has cooled to room
temperature. The heat sink becomes extremely hot, such that
touching it during operation or immediately after power-off
is likely to cause a burn. Be extremely careful when touching
the heat sink.

s-18
B-65232EN/03 SAFETY PRECAUTIONS

1.3.3.3 Note

NOTE
- Ensure that the battery connector is correctly inserted.
If the power is shut off while the battery connector is not
connected correctly, the absolute position data for the machine
will be lost.

- Store the manuals in a safe place.

The manuals should be stored in a location where they can be
accessed immediately it so required during maintenance work.

- Notes on contacting FANUC

Inform FANUC of the details of an alarm and the specification
code of the amplifier so that any components required for
maintenance can be quickly secured, and any other necessary
action can be taken without delay.

s-19
B-65232EN/03 TABLE OF CONTENTS

TABLE OF CONTENTS

SAFETY PRECAUTIONS .......................................................................... s-1

I. DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series

1 OVERVIEW ............................................................................................3
2 NOTES ON USE.....................................................................................4
2.1 COMPATIBLE AMPLIFIERS .........................................................................5
2.1.1 Amplifiers Suitable for the βM series Servo Motors .............................................. 5
2.1.2 Amplifiers Suitable for the β series Servo Motors.................................................. 7
2.2 INSTALLATION ...........................................................................................10
2.3 COUPLING ..................................................................................................11
2.4 AXIS LOAD ..................................................................................................13
2.5 ENVIRONMENT ..........................................................................................14
2.6 ACCEPTANCE AND STORAGE .................................................................18
3 INSTRUCTIONS...................................................................................19
3.1 DRIVE SHAFT COUPLING .........................................................................20
3.2 MACHINE MOVEMENT PER 1 REVOLUTION OF MOTOR SHAFT ..........23
4 SELECTING A MOTOR .......................................................................24
4.1 MOTOR SELECTION ..................................................................................26
4.1.1 Blanks for Those Other than Data ......................................................................... 26
4.1.2 Data Items to be Entered ....................................................................................... 27
4.2 CHARACTERISTIC CURVE AND DATA SHEET........................................35
4.2.1 Characteristic Curves............................................................................................. 35
4.2.2 Data Sheet.............................................................................................................. 36
4.2.3 How to Use Overload Duty Curves ....................................................................... 37

5 IEC34 STANDARD...............................................................................38
5.1 REQUIREMENTS FOR COMPLIANCE.......................................................39
5.1.1 Drive Unit .............................................................................................................. 39
5.1.2 Connector............................................................................................................... 39
5.2 APPROVAL SPECIFICATIONS...................................................................41
5.2.1 Rotational Speed (IEC34-1) .................................................................................. 41
5.2.2 Output (IEC34-1)................................................................................................... 41
5.2.3 Protection Mode (IEC34-5) ................................................................................... 42
5.2.4 Cooling Method (IEC34-6).................................................................................... 42

c-1
TABLE OF CONTENTS B-65232EN/03

5.2.5 Installation Method (IEC34-7) .............................................................................. 43

5.2.6 Heat Protection (IEC34-11)................................................................................... 43

6 EMC DIRECTIVE .................................................................................44

7 FEEDBACK DETECTOR .....................................................................45
7.1 BUILT-IN DETECTOR .................................................................................46
7.2 ABSOLUTE-TYPE PULSE CODER ............................................................47
7.3 EXTERNAL POSITION DETECTOR ...........................................................48
7.4 DETECTOR SIGNAL OUTPUT ...................................................................49
8 BUILT-IN BRAKE.................................................................................50
8.1 BRAKE SPECIFICATIONS..........................................................................51
8.2 FIGURES OF CONNECTORS.....................................................................52
8.3 CONNECTION OF THE BRAKES ...............................................................53
9 CONNECTORS ....................................................................................56
9.1 SPECIFICATIONS OF MOTOR CONNECTORS ........................................57
9.2 βM0.2 AND βM0.3 CONNECTORS ON CABLE SIDE ................................59
9.2.1 Specifications of βM0.2 and βM0.3 Connectors for Power and Brake ................ 59
9.2.2 Specifications of βM0.2 and βM0.3 Connectors for Signal ................................. 60
9.3 βM0.4 TO βM1 CONNECTORS ON CABLE SIDE ......................................62
9.3.1 Specifications of βM0.4 to βM1 Connectors for Power and Brake...................... 62
9.3.2 Specifications of βM0.4 to βM1 Connectors for Signal ....................................... 63
9.4 β1 TO β6 CONNECTORS ON CABLE SIDE...............................................64
9.4.1 Specifications of β1 to β6 Connectors for Power and Brake
(TÜV-certified and Waterproof Type) .................................................................. 64
9.4.2 Specifications of β1 to β6 Connectors for Power and Brake
(Not TÜV-compliant and Waterproof Type) ........................................................ 66
9.4.3 Specifications of β1 to β6 Connectors for Power and Brake
(Not TÜV-compliant and Non-waterproof Type) ................................................. 67
9.4.4 Specifications of β1 to β6 Connectors for Signal ................................................. 68

II. FANUC AC SERVO MOTOR βM series

1 TYPES OF MOTORS AND DESIGNATION .........................................71
2 SPECIFICATIONS AND CHARACTERISTICS.....................................73
2.1 TYPE OF MOTORS AND SPECIFICATIONS .............................................74
2.2 CHARACTERISTIC CURVE AND DATA SHEET........................................75

c-2
B-65232EN/03 TABLE OF CONTENTS

2.3 SPEED-TORQUE CHARACTERISTICS WHEN HRV1 CONTROL AND

AN I/O Link β AMPLIFIER ARE USED ........................................................81
2.4 OUTLINE DRAWINGS ................................................................................82

III. FANUC AC SERVO MOTOR β series

1 TYPES OF MOTORS AND DESIGNATION .........................................95
2 SPECIFICATIONS AND CHARACTERISTICS.....................................96
2.1 TYPE OF MOTORS AND SPECIFICATIONS .............................................97
2.2 CHARACTERISTIC CURVE AND DATA SHEET........................................98
2.3 SPEED-TORQUE CHARACTERISTICS FOR HRV CONTROL................103
2.4 OUTLINE DRAWINGS ..............................................................................105

IV. FANUC AC SERVO AMPLIFIER β series

1 OVERVIEW ........................................................................................113
2 CONFIGURATION..............................................................................114
2.1 FSSB INTERFACE ....................................................................................115
2.1.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input) ....................................... 115
2.1.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)....................................... 116
2.1.3 SVU-40, SVU-80 (Three-phase Power Input)..................................................... 117
2.1.4 SVU-40, SVU-80 (Single-phase Power Input).................................................... 118
2.2 I/O Link INTERFACE .................................................................................119
2.2.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input) ....................................... 119
2.2.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)....................................... 120
2.2.3 SVU-40, SVU-80 (Three-phase Power Input)..................................................... 121
2.2.4 SVU-40, SVU-80 (Single-phase Power Input).................................................... 122
2.3 PWM INTERFACE.....................................................................................123
2.3.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input) ....................................... 123
2.3.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)....................................... 124
2.3.3 SVU-40, SVU-80 (Three-phase Power Input)..................................................... 125
2.3.4 SVU-40, SVU-80 (Single-phase Power Input).................................................... 126
2.4 METHOD OF CONNECTING THE FAN MOTOR......................................127
2.5 UNIT TYPES AND SPECIFICATIONS ......................................................128
2.6 CIRCUIT BREAKER, ELECTROMAGNETIC CONTACTOR,
AND AC LINE FILTER ...............................................................................137
2.6.1 Circuit Breaker Rating......................................................................................... 137
2.6.2 Electromagnetic Contactor Rating....................................................................... 139

c-3
TABLE OF CONTENTS B-65232EN/03

2.6.3 AC Line Filter...................................................................................................... 139

2.7 CONNECTOR............................................................................................140
3 SPECIFICATIONS..............................................................................141
3.1 SPECIFICATIONS .....................................................................................142
3.2 DERATING ................................................................................................143
3.2.1 For SVU-20 ......................................................................................................... 143
3.2.2 For SVU-40 and SVU-80 .................................................................................... 144
3.3 PROTECTION AND ABNORMALITY DETECTION FUNCTIONS.............146
3.4 NORMAL OPERATING MODE..................................................................148
4 SEPARATED REGENERATIVE DISCHARGE UNIT .........................149
4.1 FOR SVU-4, SVU-12, AND SVU-20 ..........................................................150
4.1.1 Cases Where a Separated Regenerative Discharge Unit Is Not Required........... 150
4.1.2 Cases Where a Separated Regenerative Discharge Unit Is Required.................. 152
4.1.3 For SVU-40 and SVU-80 .................................................................................... 154
4.1.4 Notes on Regenerative Discharge Unit Installation ............................................ 156

5 POWER SUPPLY...............................................................................162
5.1 INPUT POWER SUPPLY ..........................................................................163
5.1.1 Three-phase Input Power Supply for Motor Power............................................. 163
5.1.2 Single-phase Input Power Supply for Motor Power............................................ 163
5.1.3 Single-phase Input for Control Power ................................................................. 163
5.2 POWER SUPPLY RATINGS .....................................................................164
5.2.1 Three-phase Input Power Supply Ratings for Motor Power ............................... 164
5.3 POWER TRANSFORMER FOR EXPORTS ..............................................165
5.3.1 Specification ........................................................................................................ 165
5.3.2 How to Select a Transformer............................................................................... 166

6 HEAT DISSIPATION ..........................................................................167

7 INSTALLATION CONDITIONS AND NOTES.....................................168
7.1 ENVIRONMENTAL CONDITIONS.............................................................169
7.2 SELECTING A GROUND FAULT INTERRUPTER ...................................170
7.3 NOISE PROTECTION ...............................................................................171
7.3.1 Separation of Signal Lines................................................................................... 171
7.3.2 Grounding............................................................................................................ 173
7.3.3 Noise Suppressor ................................................................................................. 174
7.3.4 Cable Clamp and Shield Processing.................................................................... 175
7.4 INSTALLING LIGHTNING SURGE ABSORBERS ....................................178

c-4
B-65232EN/03 TABLE OF CONTENTS

8 CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER

INSTALLATION..................................................................................181
8.1 OVERVIEW ...............................................................................................182
8.2 STANDARD CATEGORIES RELATED TO INSULATION DESIGN..........183
8.3 PROTECTION AGAINST SHOCK HAZARDS...........................................184
8.4 PROTECTIVE GROUNDING.....................................................................186
8.5 CAUTIONS FOR CONFIGURING AN EMERGENCY STOP CIRCUIT .....187
8.6 SUPPRESSING ELECTROMAGNETIC INTERFERENCE .......................188
8.7 PROTECTIVE GROUND WIRE CONNECTION .......................................189
8.7.1 SVU-4/12/20 (PWM Interface) ........................................................................... 189
8.7.2 SVU-4/12/20 (I/O Link Interface) ....................................................................... 190
8.7.3 SVU-40/80 (FSSB Interface)............................................................................... 191
8.7.4 SVU-40/80 (I/O Link Interface) .......................................................................... 192

9 OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES ..........193

9.1 OUTLINE DRAWINGS AND PANEL CUT-OUT DRAWINGS ...................194
9.1.1 Servo Amplifier Unit SVU-4,SVU-12,SVU-20 (FSSB Interface) ...................... 194
9.1.2 Servo Amplifier Unit SVU-40,SVU-80 (FSSB Interface) .................................. 195
9.1.3 AC Line Filter...................................................................................................... 196
9.1.4 Power Transformer for Export ............................................................................ 199
9.1.5 Separated Regenerative Discharge Unit .............................................................. 200
9.1.6 Battery Case......................................................................................................... 203
9.2 PANEL CUT-OUT DRAWINGS .................................................................204
9.2.1 SVU40, SVU-80 .................................................................................................. 204
9.2.2 Separated Regenerative Discharge Unit .............................................................. 205
9.3 MAINTENANCE AREA ..............................................................................207

V. CONNECTION
1 TOTAL CONNECTION DIAGRAM .....................................................213
1.1 FSSB INTERFACE (SVU4, SVU-12, SVU-20) ..........................................214
1.1.1 Three-phase Input ................................................................................................ 214
1.1.2 Single-phase Input (SVU4, SVU-12, SVU-20) ................................................... 215
1.2 I/O Link INTERFACE (SVU4, SVU-12, SVU-20) .......................................216
1.2.1 Three-phase Input ................................................................................................ 216
1.2.2 Single-phase Input (SVU4, SVU-12, SVU-20) ................................................... 217
1.3 PWM INTERFACE (SVU4, SVU-12, SVU-20)...........................................218
1.3.1 Three-phase Input ................................................................................................ 218
1.3.2 Single-phase Input (SVU4, SVU-12, SVU-20) ................................................... 219
c-5
TABLE OF CONTENTS B-65232EN/03

2 CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER .................220

2.1 FSSB INTERFACE (SVU4, SVU-12, SVU-20) ..........................................221
2.2 I/O Link INTERFACE (SVU4, SVU-12, SVU-20) .......................................222
2.3 PWM INTERFACE (SVU4, SVU-12, SVU-20)...........................................223
2.4 PIN ASSIGNMENT OF CONNECTOR CX11 (SVU4, SVU-12, SVU-20) ..224
2.4.1 When No Regenerative Resistor Is Used ............................................................ 225
2.4.2 When a Regenerative Resistor Is Used................................................................ 226

3 DIMENSIONS INCLUDING CABLES.................................................227

3.1 FSSB INTERFACE (SVU-4, SVU-12, SVU-20) .........................................228
3.2 I/O Link INTERFACE (SVU-4, SVU-12, SVU-20) ......................................229
3.3 PWM INTERFACE (SVU-4, SVU-12, SVU-20)..........................................230
4 DETAILS OF CABLE CONNECTIONS ..............................................231
4.1 K1 CABLE CONNECTION (ONLY FOR PWM INTERFACE)....................232
4.2 K2 CABLE CONNECTION.........................................................................235
4.3 K3 CABLE CONNECTION.........................................................................239
4.4 K4 CABLE CONNECTION.........................................................................240
4.5 K5 CABLE CONNECTION.........................................................................245
4.5.1 FOR FSSB Interface or PWM Interface.............................................................. 245
4.5.2 ESP Signal Using More than One β Amplifier ................................................... 246
4.5.3 ESP Signal in Using a Servo Check Pin Board ................................................... 247
4.6 K7 CABLE CONNECTION.........................................................................248
4.6.1 When Regenerative Discharge Unit is Used ....................................................... 248
4.6.2 When Regenerative Discharge Unit is not Used ................................................. 248
4.7 K8 CABLE CONNECTION.........................................................................249
4.7.1 When Regenerative Discharge Unit is Used ....................................................... 249
4.7.2 When Regenerative Discharge Unit is not Used ................................................. 249
4.8 K9 CABLE CONNECTION.........................................................................250
4.9 K10 CABLE CONNECTION.......................................................................252
4.10 K12 CABLE CONNECTION.......................................................................253
4.11 K13 CABLE CONNECTION.......................................................................254
4.12 K14 CABLE CONNECTION.......................................................................255
5 TOTAL CONNECTION DIAGRAM .....................................................256
5.1 FSSB INTERFACE (SVU40, SVU-80) .......................................................257
5.1.1 Three-phase Power Input..................................................................................... 257
5.1.2 Single-phase Power Input .................................................................................... 258
5.2 I/O Link INTERFACE(SVU40, SVU-80) .....................................................259

c-6
B-65232EN/03 TABLE OF CONTENTS

5.2.1 Three-phase Power Input..................................................................................... 259

5.2.2 Single-phase Power Input .................................................................................... 260
5.3 PWM INTERFACE (SVU40, SVU-80) .......................................................261
5.3.1 Three-phase Power Input..................................................................................... 261
5.3.2 Single-phase Power Input .................................................................................... 262

6 CONNECTOR ALLOCATION DIAGRAM OF β AMPLIFIERS

(SVU40, SVU-80) ...............................................................................263
6.1 FSSB INTERFACE ....................................................................................264
6.2 I/O Link INTERFACE (SVU-40, SVU-80)...................................................265
6.3 PWM INTERFACE (SVU-40, SVU-80) ......................................................266
7 DIMENSIONS INCLUDING CABLES.................................................267
7.1 FSSB INTERFACE (SVU-40, SVU-80)......................................................268
7.2 I/O Link INTERFACE (SVU-40, SVU-80)...................................................269
7.3 PWM INTERFACE (SVU-40, SVU-80) ......................................................270
8 DETAILS OF CABLE CONNECTIONS ..............................................271
8.1 K1 CABLE CONNECTION (ONLY FOR PWM INTERFACE)....................272
8.2 K2 CABLE CONNECTION (ONLY FOR PWM INTERFACE)....................273
8.3 K3 CABLE CONNECTION.........................................................................274
8.4 K4 CABLE CONNECTION.........................................................................275
8.5 K7 AND K8 CABLES CONNECTION ........................................................276
8.6 K14 CABLE CONNECTION.......................................................................278
8.7 K15 CABLE CONNECTION.......................................................................279
8.8 K12 CABLE CONNECTION.......................................................................280
8.9 K12 CABLE CONNECTION.......................................................................281
8.10 OTHER CABLE CONNECTIONS ..............................................................282
9 FANUC I/O Link CONNECTION
(FOR I/O Link INTERFACE ONLY) ...................................................283
9.1 OVERVIEW ...............................................................................................284
9.2 FANUC I/O Link CONNECTION VIA ELECTRIC CABLE ..........................285
9.3 FANUC I/O Link CONNECTION VIA OPTICAL CABLE ............................287
10 CONNECTION OF BUILT-IN DI
(FOR I/O Link INTERFACE ONLY) ...................................................288
10.1 INPUT SIGNAL SPECIFICATION .............................................................289
10.2 LIST OF SIGNALS.....................................................................................290
10.3 SIGNAL CONNECTION WITH THE POWER MAGNETICS CABINET.....291

c-7
TABLE OF CONTENTS B-65232EN/03

10.4 SKIP SIGNAL INTERFACE .......................................................................292

10.4.1 High-Speed Skip Signal Input Specification ....................................................... 292

11 EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE) .......293

11.1 CONNECTION WHEN AN A/B-PHASE PULSE GENERATOR OF
DIFFERENTIAL TYPE IS USED................................................................294
11.1.1 K22 Cable Connection ........................................................................................ 294
11.2 CONNECTION WHEN A MANUAL PULSE GENERATOR AVAILABLE FROM
FANUC IS USED .......................................................................................295
11.2.1 K23 Cable Connection ........................................................................................ 295
11.2.2 K24 Cable Connection ........................................................................................ 297
11.2.3 Manual Pulse Generator Adapter ........................................................................ 298

c-8
 I. DESCRIPTIONS FOR
FANUC AC SERVO MOTOR β series
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 1.OVERVIEW

1 OVERVIEW
The FANUC AC SERVO MOTOR β series is an economical AC
servo motor series most suitable for positioning peripheral devices of
industrial machines and machine tools, and has the features listed
below.

SERVO MOTOR βM series

- Compactness
By employing a most advanced high-performance magnet and
optimized structure, the SERVO MOTOR βM series is made shorter
and compact in overall size.
- Superior acceleration performance
With a high maximum output torque and low inertia, high
acceleration performance and highly frequent positioning are made
possible.
- High-resolution detector
High-precision positioning is enabled by mounting a highly reliable,
high-resolution β pulse coder (optical encoder). (Resolution:
65,536/rev.)
- High environmental resistance
The SERVO MOTOR βM series has high environmental resistance
satisfying IP65 as standard.
- Brake option
An optional built-in holding brake is available.

SERVO MOTOR β series

- Compactness
By employing a most advanced high-performance magnet and larger
frame, the SERVO MOTOR β series is made compact and thin in
overall size.
- High-resolution detector
High-precision positioning is enabled by mounting a highly reliable,
high-resolution β pulse coder (optical encoder). (Resolution:
32,768/rev.)
- High environmental resistance
The SERVO MOTOR β series has high environmental resistance
satisfying IP65 as standard.
- Brake option
An optional built-in holding brake is available.

-3-
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

2 NOTES ON USE

-4-
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

2.1 COMPATIBLE AMPLIFIERS

2.1.1 Amplifiers Suitable for the βM series Servo Motors

The FANUC AC SERVO MOTOR βM series can be driven by the

FANUC SERVO AMPLIFIER β series or αi series.

Connection
Motor model Series Model Interface Specification
axis
β series servo amplifier FSSB A06B-6093-H119
1-axis SVU-4
βM0.2/4000 unit I/O Link A06B-6093-H159
βM0.3/4000 αi series servo amplifier 2-axis SVM2-4/4i FSSB A06B-6114-H201 L, M
module 3-axis SVM3-4/4/4i FSSB A06B-6114-H301 L, M, N

Connection
Motor model Series Model Interface Specification
axis
β series servo amplifier FSSB A06B-6093-H112
1-axis SVU-20
unit TYPE B A06B-6093-H102
1-axis SVM1-20i FSSB A06B-6114-H103
βM0.4/4000 SVM2-20/20i FSSB A06B-6114-H205 L, M
αi series servo amplifier 2-axis
SVM2-20/40i FSSB A06B-6114-H206 L
module
SVM3-20/20/20i FSSB A06B-6114-H303 L, M, N
3-axis
SVM3-20/20/40i FSSB A06B-6114-H304 L, M

Connection
Motor model Series Model Interface Specification
axis
FSSB A06B-6093-H112
β series servo amplifier
1-axis SVU-20 I/O Link A06B-6093-H152
unit
TYPE B A06B-6093-H102
βM0.5/4000 1-axis SVM1-20i FSSB A06B-6114-H103
βM1/4000 SVM2-20/20i FSSB A06B-6114-H205 L, M
αi series servo amplifier 2-axis
SVM2-20/40i FSSB A06B-6114-H206 L
module
SVM3-20/20/20i FSSB A06B-6114-H303 L, M, N
3-axis
SVM3-20/20/40i FSSB A06B-6114-H304 L, M

WARNING
Using a combination other than those listed above
is likely to result in motor damage.

-5-
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

NOTE
1 For information about the β series servo amplifier
unit, refer to Part IV of this manual.
For information about the αi series servo amplifier
module, refer to FANUC AC SERVO AMPLIFIER
αi series DESCRIPTIONS (B-65282EN).
2 The β series servo amplifier unit uses two types of
interfaces with a CNC, namely, FSSB and TYPE B.
The αi series servo amplifier module uses only one
interface with a CNC, namely, FSSB. Before
selecting a servo amplifier, check the interface of a
CNC to be used. A β series servo amplifier unit with
the I/O Link option for providing a position control
feature is also available for choice.
3 βM0.4/4000 cannot be used with a β series servo
amplifier unit with the I/O Link option.
4 When using the βM series servo motor with the α
series servo amplifier module, consult with FANUC.

-6-
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

2.1.2 Amplifiers Suitable for the β series Servo Motors

The FANUC AC SERVO MOTOR β series can be driven by the

FANUC SERVO AMPLIFIER β series or α series.

Connection
Motor model Series Model Interface Specification
axis
FSSB A06B-6093-H111
β series servo amplifier
1-axis SVU-12 I/O Link A06B-6093-H151
unit
TYPE B A06B-6093-H101
FSSB A06B-6096-H101
1-axis SVM1-12
TYPE A, B A06B-6079-H101
FSSB A06B-6096-H201
SVM2-12/12 L, M
TYPE A, B A06B-6079-H201
FSSB A06B-6096-H202
2-axis SVM2-12/20 L
TYPE A, B A06B-6079-H202
FSSB A06B-6096-H204
SVM2-12/40 L
TYPE A, B A06B-6079-H204
FSSB A06B-6096-H301
β1/3000 SVM3-12/12/12 TYPE A A06B-6079-H301 L, M, N
β2/3000 TYPE B A06B-6080-H301
α series servo amplifier
FSSB A06B-6096-H302
module
SVM3-12/12/20 TYPE A A06B-6079-H302 L, M
TYPE B A06B-6080-H302
FSSB A06B-6096-H303
3-axis SVM3-12/20/20 TYPE A A06B-6079-H303 L
TYPE B A06B-6080-H303
FSSB A06B-6096-H305
SVM3-12/12/40 TYPE A A06B-6079-H305 L, M
TYPE B A06B-6080-H305
FSSB A06B-6096-H306
SVM3-12/20/40 TYPE A A06B-6079-H306 L
TYPE B A06B-6080-H306

-7-
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

Connection
Motor model Series Model Interface Specification
axis
FSSB A06B-6093-H112
β series servo amplifier
1-axis SVU-20 I/O Link A06B-6093-H152
unit
TYPE B A06B-6093-H102
FSSB A06B-6096-H102
1-axis SVM1-20
TYPE A, B A06B-6079-H102
FSSB A06B-6096-H202
SVM2-12/20 M
TYPE A, B A06B-6079-H202
FSSB A06B-6096-H203
2-axis SVM2-20/20 L, M
TYPE A, B A06B-6079-H203
FSSB A06B-6096-H205
SVM2-20/40 L
TYPE A, B A06B-6079-H205
FSSB A06B-6096-H302
β3/3000 SVM3-12/12/20 TYPE A A06B-6079-H302 N
β6/2000 TYPE B A06B-6080-H302
α series servo amplifier
FSSB A06B-6096-H303
module
SVM3-12/20/20 TYPE A A06B-6079-H303 M, N
TYPE B A06B-6080-H303
FSSB A06B-6096-H304
3-axis SVM3-20/20/20 TYPE A A06B-6079-H304 L, M, N
TYPE B A06B-6080-H304
FSSB A06B-6096-H306
SVM3-12/20/40 TYPE A A06B-6079-H306 M
TYPE B A06B-6080-H306
FSSB A06B-6096-H307
SVM3-20/20/40 TYPE A A06B-6079-H307 L, M
TYPE B A06B-6080-H307

WARNING
Driving a motor according to a combination other
than those listed above can damage the motor.

-8-
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

NOTE
1 For information about the β series servo amplifier
unit, refer to Part IV of this manual.
For information about the αi series servo amplifier
module, refer to FANUC AC SERVO AMPLIFIER
αi series DESCRIPTIONS (B-65282EN).
2 The β series servo amplifier unit uses two types of
interfaces with a CNC, namely, FSSB and TYPE B.
The α series servo amplifier module uses three
types of interfaces with a CNC, namely, FSSB,
TYPE A, and TYPE B. Before selecting a servo
amplifier, check the interface of a CNC to be used.
A β series servo amplifier unit with the I/O Link
option for providing a position control feature is also
available for choice.
3 An α series servo amplifier module marked with
TYPE A, B allows switching between TYPE A and
TYPE B
4 When using the β series servo motor with the αi
series servo amplifier module, consult with FANUC.

-9-
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

2.2 INSTALLATION

The servo motor contains a precision detector, and is carefully

machined and assembled to provide the required precision. Pay
attention to the following items to maintain the precision and prevent
damage to the detector.

(1) Secure the servo motor uniformly using four bolt holes provided
on the front flange.

(2) The machine surface on which the motor is mounted must be

flat.

(3) When mounting on the machine, take care not to apply a shock
to the motor.

(4) When striking the motor is unavoidable for fine position

adjustment, strike only the flange on the front side with a plastic
hammer softly so that impact is not applied to any portions other
than the flange on the front side.

(5) When handling model βM0.2/4000 or βM0.3/4000, be sure to

hold the main body of the motor. Do not carry the motor by
holding the lead wire only.

- 10 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

2.3 COUPLING

A precision detector is directly attached to the shaft end of the servo

motor. Pay attention to the following items to prevent damage to the
detector.

(1) When connecting the power transmission elements such as a

gear, a pulley and a coupling to the shaft, take care not to apply a
shock to the shaft.

(2) Generally, in the case of straight shaft, use a span ring for
connection with the shaft.

(3) In the case of tapered shaft, match the tapered surface with the
power transmission element and fix by tightening the screw at
the end. Even if the power transmission element cannot be
mounted securely, for example, because of the woodruff key
being tight, do not strike the shaft with a hammer or the like. The
woodruff key mounted on the taper shaft is used mainly for
positioning, while the tapered surface of the shaft is used for
torque transmission. The tapered surface of the transmission
element should be ground so that at least 70% of the papered
surface meets the shaft surface for efficient torque transmission.

(4) To remove the connected power transmission element, be sure to

use a jig such as a gear puller.

- 11 -
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

(5) Even when a light impact needs to be applied to remove the

jointed taper surface, for example, just strike it softly in the
radial direction. Do not apply impact in the axial direction.

(6) Suppress the rotary unbalance of the connected power

transmission element to the level as low as possible. It is usually
believed that there is no problem in the symmetrical form. Be
careful when rotating continuously the asymmetrical different
form power transmission element. Even if the vibration caused
by the unbalance is as small as 0.5G, it may damage the motor
bearing or the detector.

(7) An exclusive large oil seal is used in the front flange of the
models β3/3000 and β6/2000.
The oil seal surface is made of steel plate. Take care not to apply
a force to the oil seal when installing the motor or connecting the
power transmission elements.

- 12 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

2.4 AXIS LOAD

The allowable axis load of the motor shaft is as follows.

Front bearing
Motor model Radial load Axial load
(reference)
βM0.2/4000
6.4kgf 4kgf 699
βM0.3/4000
βM0.4/4000
βM0.5/4000 20kgf 5kgf 6902
βM1/4000
β1/3000 6003 (standard)
25kgf 8kgf
β2/3000 6202 (with brake)
β3/3000
70kgf 20kgf 6205
β6/2000

(1) The allowable radial load is the value when a load is applied to
the shaft end. It indicates the total continuous force applied to
the shaft in some methods of mounting (e.g, belt tension) and the
force by load torque (e.g., moment/pulley radius).
(2) The belt tension is critical particularly when a timing belt is used.
Too tight belt causes breakage of the shaft or other fault.
Belt tension must be controlled so as not to exceed the limits
calculated from the permissible radial load indicated above.
(3) In some operation conditions, the pulley diameter and the gear
size need to be checked. For example, when using the model β6
with a pulley/gear with the radius of 2.5cm or less, the radial
load at the occurrence of 180kgf⋅cm torque will exceed 70kgf. In
the case of timing belt, as the belt tension is added to this value,
it is thus necessary to support the shaft end.
The timing belt is also subject to the belt tension restrictions.
Therefore, some support is required; for example, the end of the
motor shaft should be supported mechanically.
(4) Actually, when using a timing belt, a possible fault like a broken
shaft can be prevented by positioning the pulley as close to the
bearing as possible.
(5) When there is a possibility of a large load, the machine tool
builder needs to examine the life by referring to the shaft
diameter, bearing, etc.
(6) Since the standard single row deep groove ball bearing is used
for the motor bearing, a very large axial load can not be used.
Particularly, when using a worm gear and a helical gear, it is
necessary to provide another bearing.
(7) The motor bearing is generally fixed with a C-snap ring, and
there is a small play in the axial direction. When this play
influences the positioning in the case of using a worm gear and a
helical gear, for example, it is necessary to fix it with another
bearing.

- 13 -
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

2.5 ENVIRONMENT

(1) Ambient temperature

The ambient temperature should be -10 to 40°C. When operating
the machine at a higher temperature, it is necessary to lower the
output power so that the motor temperature does not exceed the
specified constant value. (The values in the data sheet are
determined for an ambient temperature of 20°C.)

(2) Vibration
When installed in a machine, the vibration applied to the motor
must not exceed 5G.

(3) Installation height

Up to 1,000 meters above the sea level requires, no particular
provision for attitude. When operating the machine at a higher
level, special care is unnecessary if the ambient temperature is
lowered 1°C at every 100m higher than 1,000m. For example,
when the machine is installed at a place of 1,500 meters above
sea level, there is no problem if the ambient temperature is 35°C
or less. For higher temperatures, it is necessary to limit the
output power.

40°C

35°C

0 1000 1500 Sea level [m]

- 14 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

(4) Drip-proof environment

The protection form for a single motor unit satisfies IP65 of the
IEC standards (equivalent to JP65, dust-proof and jet-proof type,
of JIS C4004-1980, code for revolving electric machines) These
standards, however, refer only to short-term performance. In
actual operation, note also the following:

(a) Protect the motor surface from the cutting fluid or lubricant.
Use a cover when there is a possibility of wetting the motor
surface. Only the telescopic cover of the sliding part can
not completely prevent leakage of the cutting fluid. Pay
attention to the drop along the structure body, too.

(b) Prevent the cutting fluid from being led to the motor
through the cable. When the motor connector is used in the
sideways position, put a drip loop in the cable.

Slack

- 15 -
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

(c) When the motor connector is up, the cutting fluid is

collected in the cable connector through the cable. Turn the
motor connector sideways or downward as far as possible.
Most of the defects caused by the cutting fluid have
occurred in the cable connector.
The standard receptacle on the motor side is waterproof. If
the cable connector will be subjected to moisture, it is
recommended that an R class or waterproof plug be used.
Suitable plugs are listed in the cable plug combination
recommendations in Chapter 9. (The standard MS plug is
not waterproof; water is liable to enter the pin section.)

(d) The connectors and lead wires of power and signal lines of
models βM0.2/4000 and βM0.3/4000 are not drip-proof.
When a connector or lead wire must be drip-proof, the
machine tool builder needs to provide drip protection.
If model βM0.2/4000 or βM0.3/4000 is exposed to coolant,
for example, direct the lead wire outlet downward
whenever possible. Moreover, do not install the shaft in the
upward direction.
To prevent coolant from running to the motor through the
cable, slack a part of the cable, for example, as a
countermeasure.

- 16 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 2.NOTES ON USE

(5) Shaft attachment section requirements

The shaft of the motor has an oil seal to prevent foreign matter
such as oil from entering the motor. Given that motors tend to be
used in a wide range of environments, however, protection
against oil penetration cannot always be perfect. Therefore,
always observe the following precautions when using these
motors.
• When oil bath lubrication is provided for the gear
engagement, for example, the oil level must be below the
lip of the oil seal (where the shaft sticks to the oil seal). Set
the oil level so that oil merely splashes the lip.
• Thus, as the shaft rotates, the oil seal can repel oil. If,
however, pressure is applied continuously while the shaft is
stopped, oil may penetrate the lip.
• When the shaft is always immersed in oil, for example,
under the condition that the motor is to be used with the
shaft oriented vertically a special design is required. For
example, another oil seal could be installed on the machine
side, and a drain provided so that oil penetrating that seal
can drain off.
• When grease is used for lubrication, the oil seal
characteristics are usually lost.

In either case, ensure that no pressure is applied to the oil seal

lip.

Oil level

The motor shaft oil seal diameter is as shown below.

Motor model Oil seal diameter
βM0.2/4000, βM0.3/4000 φ8mm
βM0.4/4000, βM0.5/4000, βM1/4000 φ14.9mm
β1/3000, β2/3000 φ15mm
β3/3000, β6/2000 φ24mm

- 17 -
2.NOTES ON USE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

2.6 ACCEPTANCE AND STORAGE

When the servo motor is delivered, check the following items.

• The motor meets the specifications.

(Specifications of the model/shaft/detector)
• Damage caused by the transportation.
• The shaft is normal when rotated by hand.
• The brake works.
• Looseness or play in screws.

FANUC servo motors are completely checked before shipment, and

the inspection at acceptance is normally unnecessary. When an
inspection is required, check the specifications (wiring, current,
voltage, etc.) of the motor and detector.

Store the motor indoors. However avoid storing in the following

places.

• Place with high humidity so condensation will form.

• Place with extreme temperature changes.
• Place always exposed to vibration.
(The bearing may be damaged.)
• Place with much dust.

The storage temperature is -20°C to +60°C.

- 18 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 3.INSTRUCTIONS

3 INSTRUCTIONS

- 19 -
3.INSTRUCTIONS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

3.1 DRIVE SHAFT COUPLING

There are four methods for connecting the motor shaft to the ball
screw:
• Direct connection through a flexible coupling
• Direct connection through a rigid coupling
• Connection through gears
• Connection through timing belts

It is important to understand the advantages and disadvantages of each

method,
and select one that is most suitable for the machine.

(1) Direct connection using a flexible coupling

Direct connection by a flexible coupling has the following
advantages over connection using gears:
• A certain misalignment of the angle between the motor
shaft and the ball screw can be compensated.
• Because a flexible coupling connects elements with less
backlash, driving noise from joints can be significantly
suppressed.
However, this method has the following disadvantages:
• The misalignment of the center between the motor shaft and
the ball screw is not permitted (in the case of single
coupling).
• Loose assembly may result in lower rigidity.
When the motor shaft needs to be connected directly to the ball
screw, connecting them using a flexible coupling facilitates
adjustment and installation of the motor.
To use a single coupling, the machine needs to be designed so
that the centers of the motor shaft and the ball screw are aligned.
If it is difficult to align the centers, a double coupling needs to be
employed.

Ball screw
Flexible

Ball screw
Flexible

Motor shaft

Locking
Motor shaft Locking

- 20 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 3.INSTRUCTIONS

(2) Direct connection using a rigid coupling

Direct connection using a rigid coupling has the following
advantages over direct connection using a flexible coupling:
• More economical
• The coupling rigidity can be increased.
• If the rigidity is the same as with a flexible coupling, the
inertia can be reduced.
However, this method has the following disadvantages:
• The misalignment of the center and the angle between the
motor shaft and the ball screw are not permitted strictly.
For this reason, a rigid coupling needs to be mounted very
carefully.
It is desirable that the run-out of the ball screw is 0.01 mm or
less. When a rigid coupling is used on the motor shaft, the run-
out of the hole for the ball screw must be set to 0.01 mm or less
by adjusting the tightness of the span ring.
The run-out of the motor shaft and the ball screw in the radial
direction can be adjusted or compensated to a little certain extent
by deflection. Note, however, that it is difficult to adjust or
measure misalignment in the angle. Therefore, the structure of
the machine should be such that precision can be fully
guaranteed.

(3) Gears
This method is used when the motor cannot be put in line with
the ball screw because of the mechanical interference problem or
when the reduction gear is required in order to obtain large
torque. The following attention should be paid to the gear
coupling method:
• Grinding finish should be given to the gear, and eccentricity,
pitch error, tooth-shape deviations etc. should be reduced as
much as possible. Please use the JIS, First Class as a
reference of precision.
• Adjustment of backlash should be carefully performed.
Generally, if there is too little backlash, a high-pitched
noise will occur during high-speed operation, and if the
backlash is too big, a drumming sound of the tooth surfaces
will occur during acceleration/deceleration. Since these
noises are sensitive to the amount of backlash, the structure
should be so that adjustment of backlash is possible at
construction time.

- 21 -
3.INSTRUCTIONS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

(4) Timing belt

A timing belt is used in the same cases as gear connection, but in
comparison, it has advantages such as low cost and reduced
noise during operation, etc. However, it is necessary to correctly
understand the characteristics of timing belts and use them
appropriately to maintain high precision.
Generally, the rigidity of timing belt is sufficiently higher than
that of other mechanical parts such as ball screw or bearing, so
there is no danger of inferiority of performance of control caused
by reduction of rigidity by using timing belt. When using a
timing belt with a position detector on the motor shaft, there are
cases where poor precision caused by backlash of the belt tooth
and pulley tooth, or elongation of belt after a long time becomes
problem, so consideration should be given to whether these
errors significantly affect precision. In case the position detector
is mounted behind the timing belt (for example, on the ball
screw axis), a problem of precision does not occur.
Life of the timing belt largely varies according to mounting
precision and tension adjustment. Please refer to the
manufacturer's Instruction Manual for correct use.

(5) Connection between the straight shaft and a connecting element

To use a straight shaft that has no key groove, connect the shaft
with a coupling using a span ring.
Because the span ring connects elements by the friction
generated when the screw is tightened, it is free from backlash
and the concentration of stress. For this reason, the span ring is
highly reliable for connecting elements.
To assure sufficient transmission with the span ring, factors such
as the tightening torque of the screw, the size of the screw, the
number of screws, the clamping flange, and the rigidity of
connecting elements are important. Refer to the manufacturer's
specifications before using the span ring.
When a coupling or gear is mounted using the span ring, tighten
the screws to remove a run-out of the coupling or gear including
the shaft.

- 22 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 3.INSTRUCTIONS

3.2 MACHINE MOVEMENT PER 1 REVOLUTION OF MOTOR

SHAFT

The machine movement per 1 revolution of motor shaft must be

determined at the first stage of machine design referring the load
torque, load inertia, rapid traverse speed, and relation between
minimum increment and resolution of the position sensor mounted on
the motor shaft. To determine this amount, the following conditions
should be taken into consideration.

• The machine movement per 1 revolution of motor shaft ("L")

must be such that the desired rapid traverse speed can be
obtained. For example, if the maximum motor speed is 1500 rpm
and the rapid traverse speed must be 12 m/min., the amount of
"L" must be 8 mm/rev. or higher.
• As the machine movement per 1 revolution of motor shaft is
reduced, both the load torque and the load inertia reflected to
motor shaft also decrease.
Therefore, to obtain large thrust, the amount of "L" should be the
lowest value at which the desired rapid traverse speed can be
obtained.
• Assuming that the accuracy of the reduction gear is ideal, it is
advantageous to make the machine movement per 1 rev. of motor
shaft as low as possible to obtain the highest accuracy in
mechanical servo operations. In addition, minimizing the
machine movement per 1 rev. of motor shaft can increase the
servo rigidity as seen from the machine's side, which can
contribute to system accuracy and minimize the influence of
external load changes.
• An optimum condition for the servo system is attained when the
motor rotor inertia is equal to the load inertia reflected to the
motor shaft. If the machine operation is characterized by
repeated acceleration/ deceleration (for example, in a machine
such as a punch press or print board drill), a heating problem
may occur due to the current caused by acceleration and
deceleration. Should this occur, specify the amount of machine
movement per motor rotation so as to satisfy the optimum
condition as much as possible.

- 23 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

4 SELECTING A MOTOR
When making a motor selection, select an optimal motor from the
viewpoints of load conditions, feedrate, increment system, and so
forth. This section describes how to calculate the load and other
conditions, showing an example of a table with a horizontal axis.

Two types of loads are imposed on a motor: steady-state load torque

such as friction, and load inertia (acceleration/deceleration torque).
When selecting a motor, calculate these loads accurately, and check
that the calculated values satisfy the selection conditions described
below.

Condition 1
Check that the steady-state load torque at the time of idle
machine feed is within 70% of the continuous rated torque of the
motor.
Ensure that the steady-state load torque at rest time or very low
speed operation time does not exceed 70% of the continuous
rated torque. Even with the horizontal axis, the motor at rest time
still generates a torque that matches the friction load, and the
motor can overheat for a friction load at rest time.
Moreover, an influence such as viscosity can increase the steady-
state load torque in the case of high-speed feed. So, check the
steady-state load torque also at high-speed feed time.

Condition 2
Acceleration can be made with a desired time constant.
At the time of deceleration, in general, the steady-state load
torque works to advance deceleration. So, if acceleration is
possible, deceleration with the same time constant becomes
possible. Calculate the acceleration torque and check that the
torque required for acceleration is within the intermittent
operating zone of the motor.
If the steady-state load torque is increased at high-speed feed
time by an influence such as viscosity, the required acceleration
torque should be increased in the same amount.

- 24 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

Condition 3
The frequency of positioning in rapid traverse satisfy to a desired
value.
The greater the frequency of positioning in rapid traverse, the
greater the ratio of acceleration time to the entire operation time.
This may overheat the motor. When the acceleration time
constant is increased according to the rapid traverse feedrate and
positioning frequency constant, the amount of produced heat
decreases in inverse proportion to the acceleration time constant.

Condition 4
If the load condition varies during a single cycle, the root-mean-
square value of the torques is smaller than or equal to the rated
torque.

Condition 5
The time for which the table can be moved (duty percentage and
ON time) is within a desired range.

- 25 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

4.1 MOTOR SELECTION

When making a motor selection, select an optimal motor from the

viewpoints of load conditions, rapid traverse rate, increment system,
and so forth. To ensure satisfactory motor selection, the user should
determine the conditions of use according to the servo motor selection
data table given at the end of this section. Enter the necessary
machine data (up to the external detector item) in the servo motor
selection data table. If the customer sends it to FANUC, we will
provide the remaining items, and check the customer-provided data.
For details of each item in the servo motor selection data table, see the
descriptions below.

4.1.1 Blanks for Those Other than Data

(1) Machine type

Fill in this blank with a general name of machine tools, such as
lathe, milling machine, machining center, and others.
(2) Machine model
Fill in this blank with the model name of machine tool decided
by machine tool builder.
(3) CNC model
Fill in this blank with the name of CNC (16i-MB, 21i-TB, PMi-
H, etc.) employed.
(4) Axis name
Fill in this blank with axis name practically employed in CNC
command. If the number of axes exceeds 2 axes, enter them in
the second sheet.
(5) Blanks of version number, date, name, and reference number.
These blanks are left blank by the FANUC.

- 26 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

4.1.2 Data Items to be Entered

The machine tool builder is to provide the following data: direction of

movement, feed mechanism, mechanical specifications, and external
position detector. If a particular specification value is desired, specify
the value. FANUC will enter an appropriate value, considering the
overall specification. Each item is described in detail below.

(1) Specifications of moving object

Data in this blank are used for determining the values of motor
load conditions (inertia, torque). Fill in blanks of all items.
(a) Direction of movement
Enter the movement directions of driven parts such as table,
tool post, etc.
Write the angle from the horizontal level, if their movement
directions are slant (Example : Slant 60°)
Whether their movement directions are horizontal or
vertical (or slant) is necessary for calculating the
regenerative energy. Fill in this blank without fail.
(b) Weight of the moving object
Enter the weight of driven parts, such as table , tool post,
etc. by the maximum value including the weight of
workpiece, jig, and so on. Do not include the weight of the
counter balance in the next item in this item.
(c) Counter balance
Enter the weight of the counter balance in the vertical axis,
if provided.
Write the force in case of hydraulic balance.
(d) Table support
Enter the type of table slide as to rolling, sliding, or static
pressure type. If a special slide way material like Turcite is
used, note it.

(2) Feed mechanism

Enter values for whichever items are pertinent.
(a) Ball screw
Enter the diameter, pitch, and length of the ball screw in
order.
(b) Rack and pinion
Enter the pinion diameter and amount of travel for the
machine tool, per revolution of the pinion.
(c) Others
When using a feed mechanism other than the above,
provide details of the mechanical section, and enter a travel
amount for the machine tool.

- 27 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

(3) Mechanical specifications

Data in this blank serve as the basis for selecting the motor.
Enter these data correctly.
(a) Travelling distance of machine per revolution of the motor
Enter the travelling of the machine when the motor rotates
one turn.
Example 1)
When the pitch of ball screw is 12 mm and the gear
ratio is 2/3,
12(mm)×2/3=8(mm)
Example 2)
When the gear ratio is 1/72 in rotary table ;
360(deg) ×1/72=5(deg)
(b) Total gear ratio
Enter the gear ratio between the ball screw and the servo
motor, gear ratio between the final stage pinion and the
servo motor in case of the rack pinion drive, or gear ratio
between the table and the motor in case of rotary table.
(c) Inertia
Enter a load inertia value reflected to the motor shaft.
It is not always necessary to enter this inertia value in detail.
Enter it as a 2-digit value.
Example) 0.2865 → 0.29
Do not include any inertia of the motor proper in this value.
(d) Least input increment of CNC
Enter the least input increment of CNC command.
(e) Maximum rapid traverse feedrate
Enter a maximum rapid traverse feedrate according to the
mechanical specifications.
(f) Motor speed in rapid traverse
The motor speed in the maximum rapid traverse feedrate is
entered.
(g) Acceleration/deceleration time in rapid traverse
The acceleration/deceleration time is determined according
to the load inertia, load torque, motor output torque, and
working speed.
The acceleration/deceleration mode at rapid traverse is
generally linear acceleration/deceleration in FANUC's
CNC.
Speed

Vm

Time

ta ta

(h) Distance of positioning in rapid traverse

Enter the amount of travel when positioning during rapid
traverse.

- 28 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

(i) Frequency of positioning in rapid traverse

Enter the rapid traverse positioning frequency by the
number of times per minute.
This value is used to check if the motor is overheated or not
by a flowing current during acceleration / deceleration or to
check the regenerative capacity of the amplifier.
(j) Steady-state load torque
• At low speed
The steady-state load torque at low-speed feed time may
be applied even while the motor is at rest. So, the steady-
state load torque needs to have a sufficient margin
relative to the continuous rated torque of the motor.
Set a steady-state load torque so that it is within 70% of
the continuous rated torque.
• At rapid traverse
As the steady-state load torque at rapid traverse time,
enter the torque applied when a movement is made at
steady-state rapid traverse rate. Do not include any
torque required for acceleration/deceleration in this item.
(k) Backlash
Enter the backlash amount between the motor and the final
driven part like table by converting it into the move amount
of the table.

(4) External detector

This item is required to determine the servo system stability
under the influence of an external position detector, mounted on
the motor. When configuring a servo system using a linear scale,
always enter this data.
(a) External position detector
If you want to mount an external position detector outside
the motor, specify the name of the detector and its detection
unit. If you want to use a rotary detector such as a resolver
or rotary encoder, enter the following items in the
"remarks" column.
• Resolver :
Move amount of machine tool per revolution of resolver
Number of wave lengths per revolution of resolver
• Rotary encoder :
Move amount per revolution of pulse coder
Number of pulses (per revolution)
Gear diameter and reduction ratio

(5) Motor specifications

(a) Motor model, Feedback (FB) type
Enter the model name of the motor employed and the
specifications of the built-in feedback unit by using
symbols.
(b) Option
Enter optional specifications, if any, in this blank.

- 29 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

(6) Data to be provided by FANUC

(a) Input multiply ratio, command multiply ratio, and flexible
feed gear ratio
The NC set values required for moving the machine tool at
the least input increment values are entered in these blanks.
The relation among these values as illustrated below.

Command multiply
Error
register

Flexible
feed gear

In the above figure, each ratio is set so that the units of the
two inputs (a and b) of the error register are the same. The
β pulse coder uses a flexible feed gear as standard. So,
CMR is normally set to 1. When other than 1 is to be set for
CMR, contact FANUC for details.
For the flexible feed gear (F.FG), the ratio of the number of
position pulses required per motor shaft revolution to the
number of feedback pulses is set.
The set value is obtained as follows:

F.FG=(Number of position pulses requiredper motor shaft

revolution)/1,000,000

NOTE
The maximum permissible value for both the
numerator and denominator is 32,767. So, the
fraction should be reduced to its lowest terms,
after which the resultant numerator and
denominator should be set.

Example)
Suppose that the NC uses increments of 0.01mm,
the machine travel distance per motor shaft
revolution is 8 mm, and pulse coder βA32B is
used.
F.FG=(8/0.01)/1,000,000=800/1,000,000=1/1250,
CMR=1

- 30 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

(b) Position loop gain

Fill in this blank with a value which is considered to be
settable judging it from the inertia value based on
experiences. Since this value is not always applicable due
to rigidity, damping constant, and other factors of the
machine tool, it is usually determined on the actual machine
tool. If the position detector is mounted outside the motor,
this value is affected by the machine tool rigidity, backlash
amount, and friction torque value. Enter these values
without fail.

(c) Deceleration stop distance and dynamic brake stop distance

In these items, the coasting distance of the machine tool at
the machine tool stroke end is entered. Usually, a stroke
end consists of two limit stages. The stage-1 limit triggers a
deceleration stop, while the stage-2 limit triggers a dynamic
brake stop. When the stage-1 limit is tripped, the displayed
position exactly matches the stop position of the machine
tool. When the stage-2 limit is tripped, the position data is
lost. The stage-2 limit is designed to stop the machine tool
if the machine tool becomes uncontrollable and runs away.
Therefore, always install a stage-2 limit to protect the
machine tool from damage.

• Deceleration stop distance

Enter the coasting distance when the machine tool is
decelerated and stopped at the stroke end.

Vm : Rapid traverse rate, mm/min or rev/min

l1 : Coasting distance due to delay time t1 of
receiver
l2 : Coasting distance due to deceleration time t2
l3 : Servo deflection amount
t1 : Usually about 0.02 seconds

Coasting distance = Vm/60×(t1+t2/2+1/ks)(mm or deg)

ks : Position loop gain (sec-1)

- 31 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

• Dynamic brake stop distance

This is coasting distance when the machine tool is
stopped by dynamic braking with both ends of the
motor power line shorted, if the machine tool is in
trouble.

Vm : Rapid traverse rate, mm/min or rev/min

l1 : Coasting distance due to delay time t1 of
receiver
l2 : Coasting distance due to deceleration time t2 of
magnetic contactor (MCC)
l3 : Coasting distance by dynamic braking after
magnetic contactor has been operated
(t1+t2) is usually about 0.05 seconds.

Coasting distance =
Vm/60×(t1+t2)+(Jm+JL)×(AN0+BN03 )×L(mm or deg)
Jm : Motor inertia (kg⋅cm⋅s2)
JL : Load inertia (kg⋅cm⋅s2)
N0 : Motor speed at rapid traverse (min-1)
L : Machine movement on one-rotation of motor
(mm or deg)
N0 = Vm
A and B are constants that vary with the model of the
motor being used. The values for each model are listed
under "Coefficients for Calculating the Dynamic
Brake Stopping Distance."

(d) Specifications of amplifier, regenerative discharge unit, and

transformer
For these items, the specifications of the servo amplifier
and transformer to be used are entered. Enter a desired
amplifier model, if any, as the remarks item.

- 32 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

(7) Coefficients for calculating the dynamic brake stop distance

2
Motor model A B Jm (kgfcms )
-1 -8 -5
βM0.2/4000 8.1×10 5.7×10 1.9×10
-1 -8 -5
βM0.3/4000 3.4×10 4.5×10 3.5×10
-1 -8 -4
βM0.4/4000 2.2×10 4.5×10 1.0×10
-2 -8 -4
βM0.5/4000 8.8×10 2.0×10 1.8×10
-2 -9 -4
βM1/4000 3.7×10 8.7×10 3.5×10
-2 -8 -3
β1/3000 4.8×10 5.7×10 3.4×10
-2 -8 -3
β2/3000 1.9×10 3.1×10 6.7×10
-3 -8 -2
β3/3000 9.7×10 2.4×10 2.0×10
-3 -8 -2
β6/2000 3.9×10 1.2×10 4.0×10

The values of A and B are calculated by assuming that the

resistance of the power line is 0.05 Ω per phase. The values will
vary slightly according to the resistance value of the power line.
These values are coefficients applicable when α and αi series
servo amplifiers are combined. Depending on the servo amplifier
used, each value slightly varies.

- 33 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

MTB Servo motor selection data table (models for positioning)

Machine type Machine model
CNC model FANUC Name

Item Axis name

Specifications of moving object
Direction of movement (horizontal, vertical, slant__degrees, rotation)
Weight of the moving object (including the workpiece) kg
Counterbalance kg
Table support (sliding contact, rolling contact, static pressure),
Frictional coefficient (*)
Feed mechanism (Select one of the following and enter the corresponding data.)
1 Ball screw: Diameter × pitch × length mm
2 Rack and pinion: Diameter of pinion, traveling distance per revolution mm
3 Others
Mechanical specifications
(Enter a typical operation pattern, if already determined, in the remarks field.)
Traveling distance of the machine per revolution of the motor mm
Total gear ratio
2
Inertia (Note "before deceleration" or "applied to the motor shaft.") kgfcms
Least input increment of CNC (resolution) mm
Maximum rapid traverse feedrate mm/min
-1
Motor speed in rapid traverse min
Acceleration/deceleration time in rapid traverse msec
Distance of positioning in rapid traverse mm
Frequency of positioning in rapid traverse frequency/min
Steady-state load At low speed time kgfcm
torque At rapid traverse time kgfcm
Backlash mm
Fill in these blanks when an external detector is used. (**)
Type of external position detector (detection unit, number of pulses, etc.)
Gear diameter and reduction ratio when a rotary encoder is used
Motor specifications
Motor model (desired size and output, if any)
FB type (when an absolute position detector is required)
Option (when a brake, non-standard shaft, etc. is required)
FANUC will fill in these blanks.
Command multiplier CMR
Detection multiplier DMR
Flexible feed gear FFG
-1
Position loop gain sec
Deceleration stop distance mm
Dynamic brake stop distance mm
Specifications of amplifier
Regenerative discharge unit
Specifications of transformer
(*) Note the friction coefficient of the sliding surface if it is determined.
(**) An external position detector is required when:
Note - The positions of the motor and machine may be mechanically displaced, for example, by slippage of
a driving tire or an elongated driving chain.
(Example: Expansion of chain when chain is driver, etc.)
Version Date Name
3
Remarks
2
1
FANUC LTD A.Ar-1870-

- 34 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

4.2 CHARACTERISTIC CURVE AND DATA SHEET

Performance of each motor model is represented by characteristic

curves and data sheet shown below.

4.2.1 Characteristic Curves

The typical characteristic curves consist of the following.

(1) Speed-torque characteristics

These are known as operating curves and describe the
relationship between the output torque and rotation speed of the
motor. The motor can be operated continuously at any
combination of speed and torque within the prescribed
continuous operating zone. To use the motor outside this zone,
obtain an operating condition from an overload duty curve, and
use the motor intermittently. The limit of continuous operating
zone is determined under the following conditions.
• The ambient temperature for the motor is 20°C.
• The drive current of the motor is pure sine wave.
The limit of the intermittent operating zone is determined by the
rated input voltage (200 V) applied to the drive unit. So, the limit
may change, depending on the voltage applied to the drive unit.
The torque in the continuous operating zone and intermittent
operating zone decreases by 0.19% with the β series or by 0.11%
with the βM series for each temperature increase of 1°C beyond
20°C due to the negative temperature coefficient of the magnet
material.

(2) Overload duty characteristic

This is known as a duty cycle curve and used to calculate the ON
time (during which the motor can be powered) and OFF time
(during which the motor must be kept at a rest to get cooled) for
the motor to run intermittently without becoming overheated.
This curve is determined by the limit of motor temperature.
However, the curve may also depend on the thermal protection
function of the drive unit and control unit.
See Section 4.2.3 for how to calculate the ON and OFF times.

- 35 -
4.SELECTING A MOTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

4.2.2 Data Sheet

The data sheet gives the values of motor parameters relating to the
performance.
The values of parameters are those under the following conditions.
• The ambient temperature for the motor is 20°C.
• The drive current of the motor is pure sine wave.

Important parameters on the data sheet are defined as follows :

(a) Continuous RMS current at stall : Is (Arms)
This current represents a maximum effective current that can
continuously run the motor at low speed.
(b) Torque constant : Kt (kgf⋅cm/Arms)
This constant represents a torque value generated by the motor
for a phase current of 1 ampere.
The torque constant decreases by 0.19% with the β series or by
0.11% with the βM series for each temperature increase of 1°C
beyond 20°C due to the negative temperature coefficient of the
magnet material.
The torque constant is a function of the total flux and the total
number of conductors in the armature.
The back EMF constant (Kv) and the torque constant are inter-
related as follows :
Kt (kgf⋅cm/Arms)=30.6 Kv (Volt⋅sec/rad)
Thus if Kv is reduced due to demagnetization of the magnet, Kt
is also reduced in the same proportion.
(c) Back EMF (electromotive force) constant : Kv (Volt⋅sec/rad)
A back EMF is a voltage that is generated by rotating a servo
motor with external mechanical force. The back EMF constant
of a motor represents the relationship between the number of
conductors in the armature of the motor and the amount of flux
in the field magnet. The back EMF constant is also a parameter
representing the intensity of a permanent magnet. The
relationship can be given as.
(Volt⋅sec/rad)=(volt/min-1) ×9.55
Back EMF constant is indicated as the RMS voltage per phase,
so multiply 3 to get actual terminal voltage.
(d) Mechanical time constant : tm (sec)
This is a function of the initial rate of rise in velocity when a
step voltage is applied. It is calculated from the following
relationship.
tm=(Jm×Ra)/(Kt×Kv)
Jm : Rotor inertia (kgf⋅cm⋅sec2)
Ra : Resistance of the armature (Ω)
(e) Thermal time constant : tt (min)
This is a function of the initial rate of rise of winding
temperature at rated current. It is defined as the time required to
attain 63.2 percent of the final temperature rise.
(f) Static friction : Tf (kgf⋅cm)
This is the no-load torque required just to rotate the rotor.

- 36 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 4.SELECTING A MOTOR

4.2.3 How to Use Overload Duty Curves

The servo motor can be driven out of the continuous operating zone,
but intermittently. Duty characteristics shows the Duty (%) and the
"ON" time in which motor can be operated under the given overload
conditions. The ON and OFF times of a motor are conditioned using
the following procedure.

<1> Calculate Torque percent by formula below.

TMD=Load torque/Continuous rated torque
The ON time for a motor can be specified within the torque
percent.
<2> Calculate "OFF" time by formula.
tF=tR×(100/Duty percent-1)
tF : "OFF" time
tR : "ON" time

Example)
If it is necessary to run the β2/3000 under a load of
30 kgf⋅cm at very low speed:
Because the rated torque of the β2/3000 is 20
kgf⋅cm:
Torque percent: TMD = 30/20 = 1.5 (150%)
From the overload duty curve of the β2/3000:
Duty percent of the motor when it runs with TMD =
150% for five minutes is: About 37%
OFF time: tF = 5 × (100/37 - 1) 8.5 min
After the motor runs under the above conditions,
therefore, it must be kept at a stop for at least 8.5
minutes.

The drive amplifier also incorporates a thermal protection device such

as a circuit breaker or thermal circuit. The thermal protection device
may additionally limit the operation of the motor. In addition, a
software function protects the motor and amplifier from short-term
overload. The function may limit the operation of the motor.

- 37 -
5.IEC34 STANDARD DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

5 IEC34 STANDARD

- 38 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 5.IEC34 STANDARD

5.1 REQUIREMENTS FOR COMPLIANCE

This section describes the conformity of the FANUC AC SERVO

MOTOR β series and βM series to the IEC34 standard. The IEC34
standard can be satisfied by using a motor having a nameplate bearing
a TÜV mark and satisfying the conditions below.

5.1.1 Drive Unit

The motor must be driven by the FANUC AC SERVO AMPLIFIER β

series, αi series, or α series.

5.1.2 Connector

Motor power lines and brake units must be connected using the
connectors listed below.

[βM series]
Special tool
Connector specification
Motor model specification Manufacturer
[FANUC specification]
[FANUC specification]
Connector body : 54983-0000
Contact : 56052-8100
Straight
[A06B-6114-K230#S] (FANUC specification)
type
(The connector body and contact are contained
in the same pack.)
Power
Connector body : 55765-0000
Contact : 56052-8100
Elbow
[A06B-6114-K230#E] (FANUC specification) Crimping tool
type
(The connector body and contact are contained 57406-5000
βM0.4/4000 MOLEX
in the same pack.) [A06B-6114-K234#C]
βM0.5/4000 JAPAN Co.,
Connector body : 54982-0000 Pull-out tool
βM1/4000 Ltd.
Contact : 56052-8100 57406-6000
Straight
[A06B-6114-K232#S] (FANUC specification) [A06B-6114-K234#R]
type
(The connector body and contact are contained
in the same pack.)
Brake
Connector body : 55766-0000
Contact : 56052-8100
Elbow
[A06B-6114-K232#E] (FANUC specification)
type
(The connector body and contact are contained
in the same pack.)

WARNING
For grounding, a wire with a cross-sectional area
equal to or greater than that of U, V, or W must be
used.

- 39 -
5.IEC34 STANDARD DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

[β series]
Plug connector specification Cable clamp specification
Motor model Manufacturer
[FANUC specification] [FANUC specification]
Straight H/MS3106A18-10S-D-T(10)
type [A63L-0001-0648/61810SH] H/MS3057-10A(10) HIROSE
Power
β1/3000 H/MS3108A18-10S-D-T(10) [A63L-0001-0592/10AK] ELECTRIC
L type
β2/3000 [A63L-0001-0648/81810SH]
β3/3000 Straight JL04V-6A10SL-3SE-EB
Japan Aviation
β6/2000 type [A63L-0001-0648/610SL3SJ] JL-04-1012CK-(07)
Brake Electronics
JL04V-8A10SL-3SE-EB [A63L-0001-0653/04A]
L type Industry
[A63L-0001-0648/810SL3SJ]

WARNING
For grounding, a wire with a cross-sectional area
equal to or greater than that of U, V, or W must be
used.

NOTE
The plug connectors do not feature a cable clamp.

TÜV has certified that the plug connectors and cable clamps above,
when combined with the FANUC AC SERVO MOTOR β series,
satisfy the VDE0627 safety standard.

In addition to the plug connectors above, connector manufacturers

offer TÜV-compliant connectors. For compliance of these connectors
with the safety standard when combined with the FANUC AC
SERVO MOTOR β series, check with each connector manufacturer.
Moreover, contact each connector manufacturer for details of each
series.

Manufacturer Product series name

HIROSE ELECTRIC H/MS310 TÜV-compliant series
Japan Aviation Electronics Industry JL04V series
DDK Ltd. CE05 series

- 40 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 5.IEC34 STANDARD

5.2 APPROVAL SPECIFICATIONS

5.2.1 Rotational Speed (IEC34-1)

Each model's maximum allowable speed is as shown below.

The maximum allowable speeds are determined from the viewpoint of
speed alone within the range in which the certification condition for
satisfying the IEC34 standard is observed. The characteristics at a
maximum allowable speed are not guaranteed.

Rated speed Maximum allowable speed

Motor model -1 -1
(min ) (min )
βM0.4/4000 4000 5000
βM0.5/4000 4000 5000
βM1/4000 4000 5000
β1/3000 3000 4000
β2/3000 3000 4000
β3/3000 3000 4000
β6/2000 2000 3000
(*) The maximum allowable speeds are applicable only when HRV
control is used for driving.

5.2.2 Output (IEC34-1)

The rated output is guaranteed as continuous output only at the rated

output speed.
Output in the intermittent operating zone is not specified. The
certified output value of each model is indicated below.

Rated output
Motor model
(W)
βM0.4/4000 125
βM0.5/4000 200
βM1/4000 400
β1/3000 300
β2/3000 500
β3/3000 500
β6/2000 900

- 41 -
5.IEC34 STANDARD DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

5.2.3 Protection Mode (IEC34-5)

The protection mode defined by IEC34-5 is as follows:

Motor model IP Approval condition
βM0.4/4000
βM0.5/4000 65 A specified connector needs to be used.
βM1/4000
β1/3000
β2/3000 A specified connector and waterproof cover (signal
65
β3/3000 lines) need to be used.
β6/2000

IP6x : Complete dust-proof machine

Structure that completely prevents dust from penetrating
IPx5 : Machine tool protected against water spray
Water, sprayed randomly onto the machine tool through a
nozzle, must not adversely affect the operation of the machine
tool.

The IPx5 mode test conditions are as follows:

• Inner nozzle diameter 6.3mm
• Volume of water 12.51/min
• Water pressure at nozzle 30kPa
• Injection time per unit surface area (1 m2) 1 minute
• Minimum test time 3 minutes or more
• Distance between nozzle and machine tool About 3 m

WARNING
As described above, IPx5 evaluates a machine tool
by means of a short-term test using water,
assuming that the machine tool is dried after being
sprayed with water. Note that the use of a liquid
other than water or the continuous application of
water, such that the machine tool is not allowed to
dry, can adversely affect the machine tool even if
the other aspects of the test are less severe.

5.2.4 Cooling Method (IEC34-6)

The following motor cooling method is to be used:

Motor model IC code Method
βM0.4/4000
βM0.5/4000
βM1/4000
Totally enclosed, natural
β1/3000 IC410
air-cooling
β2/3000
β3/3000
β6/2000

- 42 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 5.IEC34 STANDARD

5.2.5 Installation Method (IEC34-7)

A motor can be installed using any of the following methods:

IMB5 : The motor is installed by using a flange, with the
shaft oriented horizontally (from the back).
IMV1 : The motor is installed by using a flange, with the
shaft oriented upwards (from the back).
IMV3 : The motor is installed by using a flange, with the
shaft oriented downwards (from the back).

5.2.6 Heat Protection (IEC34-11)

The heat protection mode defined in IEC34-11 is as follows:

Motor model Code Method
Indirect protection of windings by means of a
β6/2000 TP112
thermal cut-out

TP112

2 : Temperature rise limit class 2 for heat protection

1 : One-stage stop only
(with no alarm information output)
1 : Protection against less abrupt overload only

NOTE
1 Heat protection is not defined for models other than
the model indicated above.
2 Each model is software-protected against an
abrupt overload.

- 43 -
6.EMC DIRECTIVE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

6 EMC DIRECTIVE
The β series servo motors comply with the EMC directive.

To make the entire machine compliant to the EMC directive, the

necessary measures must be taken according to the guideline
published by FANUC (document No.: A-72937E).

- 44 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 7.FEEDBACK DETECTOR

7 FEEDBACK DETECTOR

- 45 -
7.FEEDBACK DETECTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

7.1 BUILT-IN DETECTOR

All servo motors feature a pulse coder (optical rotary encoder).

The pulse coder outputs position information and an alarm signal.

The βM series motors incorporate pulse coders designed to the

specifications listed below.
Resolution Absolute/
Pulse coder type Applicable motor
(Division/rev) incremental
Pulse coder βA64B 65,536 Absolute All models in βM series motor
All models except
Pulse coder βI64B 65,536 Incremental
βM0.2/4000 and βM0.3/4000

The β series motors incorporate pulse coders designed to the

specifications listed below.
Resolution Absolute/
Pulse coder type Applicable motor
(Division/rev) incremental
Pulse coder βA32B 32,768 Absolute
All models in β series motor
Pulse coder βI32B 32,768 Incremental

NOTE
The β series pulse coders can be connected to an
NC if the NC is fitted with the serial interface, and
the digital servo software for the α pulse coders is
installed.

- 46 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 7.FEEDBACK DETECTOR

7.2 ABSOLUTE-TYPE PULSE CODER

When the CNC is turned off, the pulse coder position detection
function is backed up by battery. So, when the CNC is next turned on,
the operator does not have to perform reference position return.
For backup, a battery unit for back-up must be installed in the NC or
servo amplifier.
If a low-battery indication appears on the CNC, renew the battery as
soon as possible.
Replace the battery while the CNC is turned on.

- 47 -
7.FEEDBACK DETECTOR DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

7.3 EXTERNAL POSITION DETECTOR

For detecting a position by attaching directly to a ball screw or a

machine, use an external (separate type) position detector. Pay
attention to the following items when using the external position
detector.
(1) Increase the machine rigidity between the servo motor and the
position detector to minimize mechanical vibration. If the
machine rigidity is low or the structure vibrates, poor
performance is likely to occur.
(2) Generally, when the separate type detector is used, the influence
of gear, ball screw pitch error or table inclination is decreased
and the positioning accuracy and geometrical accuracy
(roundness, etc.) are increased, but the smoothness may
deteriorate due to the elasticity in the machine between the servo
motor and the position detector.
(3) Positioning precision is equivalent to the resolution of the built-
in pulse coder, even if the resolution of the external position
detector is higher than that of the built-in pulse coder.
(4) To connect the external position detector to the CNC, connect
only the signals described in the connecting manual. (Phase A,
Phase B, Phase Z, 0V, 5V and REQ if necessary)
(5) The specifications of the FANUC external position detector are
given in the descriptions (B-65142E) of the α series servo
motors.

- 48 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 7.FEEDBACK DETECTOR

7.4 DETECTOR SIGNAL OUTPUT

The following table lists the pin assignment of the β series servo
motor output signals and the signals on each model's connectors.
β1/3000
βM0.4/4000
βM0.2/4000 β2/3000
Motor model βM0.5/4000
βM0.3/4000 β3/3000
βM1/4000
β6/2000
Pulse coder type βA64B βA64B βI64B βA32B βI32B
Signal name Pin number
SD A4 2 2 12 12
*SD B4 1 1 13 13
REQ A3 6 6 5 5
*REQ B3 5 5 6 6
+5V A2,B2 8,9 8,9 8,15 8,15
0V A1,B1 7,10 7,10 1,2,3 1,2,3
+6V A5 4 - 14 -
0VA - - - 10 -

1 3 1 8
Connector pin B1 B6 4 7
assignment A1 A6 8 10

9 15

- 49 -
8.BUILT-IN BRAKE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

8 BUILT-IN BRAKE
β series servo motors have models that contain a holding brake to
prevent falling of a vertical axis.
Motors with a built-in brake have different outlines and weight from
other types of motors. For their outlines, refer to Part II or Part III.

The servo motor incorporates a brake which is applied to lock the

shaft while the power is turned off, and which is released while the
power is turned on.

- 50 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 8.BUILT-IN BRAKE

8.1 BRAKE SPECIFICATIONS

The specifications of built-in brakes for βM series servo motors are

listed below.
β M0.2/4000 β M0.4/4000
Item Unit β M1/4000
β M0.3/4000 β M0.5/4000
Nm 0.32 0.65 1.2
Brake torque
kgf⋅cm 3.3 6.6 12
Response Release msec 40 40 40
time Brake msec 20 20 20
Supply voltage V (±10%) 24 VDC
Current A 0.3 or lower 0.5 or lower 0.5 or lower
Weight increase kgf Approx. 0.22 Approx. 0.4 Approx. 0.4
2 -6 -6 -6
kgm 2×10 9×10 9×10
Inertia increase 2 -5 -5 -5
kgfcms 2×10 9×10 9×10
The values specified above are standard values at 20°C.

The specifications of built-in brakes for β series servo motors are

listed below.
β 1/3000 β 3/3000
Item Unit
β 2/3000 β 6/2000
Nm 2 8
Brake torque
kgf⋅cm 20 82
Response Release msec 60 70
time Brake msec 20 30
Supply voltage V (±10%) 90 VDC
Current A 0.3 or lower 0.4 or lower
Weight increase kgf Approx. 1.5 Approx. 2.3
2 -5 -5
kgm 2×10 7×10
Inertia increase 2 -4 -4
kgfcms 2×10 7×10
The values specified above are standard values at 20°C.

CAUTION
The built-in brake is used as a holding brake to
prevent axis dropping at servo-off time. Though the
built-in brake functions as braking in the case of an
emergency stop or power outage, however, the
built-in brake cannot be used to brake and shorten
the stop distance at ordinary deceleration time.
Moreover, while the motor is excited, the built-in
brake cannot be used as an auxiliary mechanism
for holding the motor.

- 51 -
8.BUILT-IN BRAKE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

8.2 FIGURES OF CONNECTORS

The figures and pin arrangements of brake connectors are shown

below.

[Models βM0.2 and βM0.3]

Connection : B2=BK, B3=BK

B1 B2 B3
(Connected to the power connector)
(A1=U, A2=V, A3=W, B1=GND)
A1 A2 A3
Connect the brake power to BK.
No polarity is applied to brakes.

[Models βM0.4, βM0.5, and βM1]

Connection : 1=BK, 2=BK, 4=GND

2 1
Connect the brake power to BK.
3 4 No polarity is applied to brakes.

[Models β1 to β6]

Connection : A=BK, B=BK, C=GND

C A Connect the brake power to BK.

No polarity is applied to brakes.
B

- 52 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 8.BUILT-IN BRAKE

8.3 CONNECTION OF THE BRAKES

Configure a brake circuit by referencing the brake connection diagram,

notes, and recommended components described below.

[Models βM0.2 and βM0.3]

Circuit breaker, etc Motor

coil

Servo amplifier
200VAC Relay

Coil Ground
(to motor body)
Spark killer

Contact Brake coil

(No polarity is
applied.)
Surge absorber

Other 24 VDC devices

24VDC
(Relays, solenoids, etc.)
(NCs and amplifiers are excluded.)

[Models βM0.4, βM0.5, and βM1]

Circuit breaker, etc Motor

coil
Servo amplifier

200VAC Relay

Coil Ground
(to motor body)
Spark killer

Contact Brake coil

(No polarity is
applied.)
Surge absorber
Ground
(to motor body)
Other 24 VDC devices
24VDC
(Relays, solenoids, etc.)
(NCs and amplifiers are excluded.)

- 53 -
8.BUILT-IN BRAKE DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

Notes
(1) Use 24 VDC as the brake power for the βM series servo motor.
AC power decreased by a transformer and full-wave rectified to
24 Vrms can also be used.
(2) For the brake power, use a power system different from the 24 V
power for CNC and amplifier control. If the power for CNC and
amplifier control is shared as the brake power, the CNC and
amplifier can malfunction. The power for peripheral devices
such as relays and solenoids may be shared. In this case,
however, pay attention to the power supply capacity and voltage
variation due to load variation.
(3) When full-wave rectification is used, perform transformation to
generate a secondary voltage of 29 VAC at the time of brake
conduction, considering a voltage drop in the rectifier and cable.
In this case, carefully check the power supply capacity and
supply voltage variation and ensure that the variation in voltage
applied to the brake at conduction time is within 24 Vrms ±10%.
Be sure to prepare and select the suitable input taps on the
primary side of the transformer according to the power supply
voltage, such as 100-110-120 VAC or 200-220-240 VAC.
(4) When the contact is set on the DC side (position shown in the
figure), the life of the contact is generally reduced due to a surge
voltage generated at brake-off time. Ensure that the contact has a
sufficient capacity. Moreover, use a surge absorber and spark
killer to protect the contact.
(5) The brake coil has no polarity. When making a brake coil
connection, the user need not be concerned with the positive and
negative poles of the power.
(6) Use a shielded cable as required.

The table below indicates the recommended components and

specifications of the brake circuit for the βM series servo motor.
FANUC
Item Stock number Manufacture Specification
specification
Rated capacity
Switch - - -
250 VAC, 10 A or more
Matsushita
Varistor voltage 82 V
Surge absorber ERZV10D820 Electric Industrial -
Maximum allowable voltage 50 VAC
Co., Ltd.
Okaya Electric
47Ω/0.1µF
Spark killer XEB0471 Industries Co., -
Breakdown voltage 400 V or more
Ltd.
Shindengen
Electric Breakdown voltage 400 V or more
Rectifier D3SB60 A06B-6050-K112
Manufacturing Maximum output current 2.3 A (with no fin)
Co., Ltd.

- 54 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 8.BUILT-IN BRAKE

[Models β1 to β6]

Circuit breaker, etc Motor

coil

Servo amplifier
200VAC Relay

Ground
Coil
(to motor body)
Spark killer
Brake coil
Contact (No polarity is
applied.)

Surge absorber Ground

100VAC (to motor body)

Notes
(1) Use a full-wave rectified power of 100 VAC or use 90 VDC as
the brake power for the β series servo motor. Do not use a half-
wave rectified power of 200 VAC, because brake components
such as a surge absorber can be damaged.
(2) When full-wave rectification is used, carefully check the power
supply capacity and supply voltage variation and ensure that the
variation in voltage applied to the brake at conduction time is
within 90 Vrms ±10%.
Be sure to prepare and select the suitable input taps on the
primary side of the transformer according to the power supply
voltage, such as 100-110-120 VAC or 200-220-240 VAC.
(4) When the contact is set on the DC side (position shown in the
figure), the life of the contact is generally reduced due to a surge
voltage generated at brake-off time. Ensure that the contact has a
sufficient capacity. Moreover, use a surge absorber and spark
killer to protect the contact.
(5) The brake coil has no polarity. When making a brake coil
connection, the user need not be concerned with the positive and
negative poles of the power.
(6) Use a shielded cable as required.

The table below indicates the recommended components and

specifications of the brake circuit for the β series servo motor.
FANUC
Item Stock number Manufacture Specification
specification
Rated capacity
Switch - - -
500 VAC, 5 A or more
Matsushita Electric Varistor voltage 220 V
Surge absorber ERZV20D221 A06B-6050-K113
Industrial Co., Ltd. Maximum allowable voltage 140 VAC
Okaya Electric 500Ω/0.2µF
Spark killer S2-A-0 -
Industries Co., Ltd. Breakdown voltage 400 V or more
Shindengen Electric
Breakdown voltage 400 V or more
Rectifier D3SB60 Manufacturing Co., A06B-6050-K112
Maximum output current 2.3 A (with no fin)
Ltd.

- 55 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9 CONNECTORS

- 56 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

9.1 SPECIFICATIONS OF MOTOR CONNECTORS

With the FANUC AC SERVO MOTOR β series, TÜV-approved

connectors are used for power and brake to ensure conformity with
the IEC34 standard.

The table below indicates the specifications of the connectors on the

motor side.
Motor model For power For signal For brake
3-179554-3 1-1318115-6
βM0.2/4000 Shared in power line
(tyco Electronics (tyco Electronics
βM0.3/4000 connector
AMP) AMP)
βM0.4/4000 55618-0401 JN1AS10UL1 55619-0401
βM0.5/4000 (MOLEX JAPAN Co., (Japan Aviation (MOLEX JAPAN Co.,
βM1/4000 Ltd.) Electronics Industry) Ltd.)
β1/3000
H/MS3102A18-10P- JL04V-2A10SL-3P-B
β2/3000 SDAB-15P
D-T(10) (Japan Aviation
β3/3000 (HIROSE ELECTRIC)
(HIROSE ELECTRIC) Electronics Industry)
β6/2000

The figures and pin arrangements of power connectors are shown

below.

[Models βM0.2, βM0.3]

Motor
B1 B2 B3 coil
A1

A1 A2 A3
A2
A3
B1 Ground
3-179554-3 (to motor body)
[Models βM0.4, βM0.5, βM1]
Motor
coil
2 1 1
3 4 2
3
55618-0401 4 Ground
(to motor body)
[Models β1 to β6]
Motor
coil
D A A
B
C B
C
D Ground
3102A 18-10P (to motor body)

- 57 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

The standard receptacle connectors for models β1 to β6 do not

exactly satisfy the MS standard in that the connectors are waterproof
as single units, and their exterior color is black. However, their sizes
and shapes are compatible with the conventional round-type
connectors conforming to the MS standard.
Accordingly, in addition to the products recommended below, plug
connectors conforming to the MS standard can also be used. (When
the water-resistance of the system is of prime importance, the
waterproof plug connectors recommended.

WARNING
Direct motor connectors downwards whenever
possible. When a motor connector must be
directed horizontally, provide sufficient cable slack
to prevent, for example, the connector from being
wetted by liquid such as coolant. The connectors
on the βM0.2 to βM0.3 motors are not water-proof.
The machine tool builder is requested to make
some provision to protect the connectors from
water and moisture. In any case, if a motor
connector is exposed to liquid, protection by means
of a cover, for example, must be provided.

CAUTION
If the motor in not grounded via the machine
(cabinet) on which it is mounted, connect a wire
between the terminal to which the motor ground
cable is connected and that to which the amplifier
ground cable is connected, to suppress noise. In
such a case, use a wire of at least 1.25mm2,
independently of the ground wire within the power
cable, and route it as far away from the power
cable as possible.

- 58 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

9.2 βM0.2 AND βM0.3 CONNECTORS ON CABLE SIDE

9.2.1 Specifications of βM0.2 and βM0.3 Connectors for Power and

Brake

The specifications of the power connector (cable side) for βM0.2 and
βM0.3 are indicated below.
The connector is certified by TÜV.
The connector is not drip-proof.
For both power and brake
Housing specification 3-178129-6
(tyco Electronics AMP) (D-3200M Receptacle housing 6 poles XY)
Contact specification 1-175218-2
(tyco Electronics AMP) (D-3 Receptacle contact L)
Applicable 2
0.5 to 1.25 mm
wire size
Wire insulator
outside φ1.8 to 2.8 mm
diameter

The connector kit for power and brake indicated below is available.
For both power and brake
Connector kit specification
A06B-6114-K240
(FANUC specification)
Receptacle housing (3-178129-6) × 1
Connector kit components
Receptacle contact D-3 L (1-175218-2) × 6

The table below indicates the tools dedicated to the connector.

tyco Electronics AMP
Applicable contact FANUC specification
specification
Crimping
For D-3 contact of L size 914596-3 A06B-6110-K220#D3L
tool
Pull-out
For D-3 contact 234168-1 A06B-6110-K220#D3R
tool

NOTE
The contacts of the connectors are so structured
that the wire and insulator are crimped together.
So, be sure to observe the specified insulator
diameter. Other types of wires may be usable,
depending on wire and tool. For details, consult
with the connector manufacturer.

- 59 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9.2.2 Specifications of βM0.2 and βM0.3 Connectors for Signal

The specifications of the signal connector (cable side) for βM0.2 and
βM0.3 are indicated below.
The connector is not drip-proof.
For signal
Housing
specification 1-1318118-6
(tyco Electronics (D-2100D Receptacle housing 12 poles)
AMP)
Contact
1318108-1
specification 1318107-1
(D-2 Receptacle
(tyco Electronics (D-2 Receptacle contact M)
contact S)
AMP)
Applicable 2 2 2
0.18 to 0.5 mm 0.3 to 0.85 mm 0.08 to 0.2 mm
wire size
Wire insulator
outside φ0.88 to 1.5 mm φ1.1 to 1.87 mm φ0.88 to 1.5 mm
diameter
1463475-1 1276654-1 1276653-1
Applicable
(Dedicated (D-2 M Standard (D-2 S Standard
crimping tool
crimping tool) crimping tool)) crimping tool)

The connector kit for signal indicated below is available.

For signal
Connector kit
specification
A06B-6114-K241
(FANUC
specification)
Connector kit Receptacle housing(1-1318118-6)×1
components Receptacle contact D-2 M (1318107-1)×12

The table below indicates the tools dedicated to the connector.

tyco Electronics
Applicable contact FANUC specification
AMP specification
For D-2 contact of M size
(Dedicated crimping tool
1463475-1 A06B-6114-K242
Crimping suitable for wire size from
2
tool 0.18 to 0.5 mm )
For D-2 contact of M size 1276654-1 A06B-6110-K220#D2M
For D-2 contact of S size 1276653-1 -
Pull-out
For D-2 contact 1276716-1 A06B-6110-K220#D2R
tool

- 60 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

NOTE
1 When the recommended wire (wire size from 0.18
to 0.5 mm2) is used only with D-2 contact of M size,
the dedicated crimping tool indicated above is
necessary.
When the standard crimping tool for the D-2
contact is used, check the wire size and type of
contact used, and the specifications of the crimping
tool, and use the crimping tool within the allowable
range.
2 The contacts of the connectors are so structured
that the wire and insulator are crimped together.
So, be sure to observe the specified insulator
diameter. Other types of wires may be usable,
depending on wire and tool. For details, consult
with the connector manufacturer.

- 61 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9.3 βM0.4 TO βM1 CONNECTORS ON CABLE SIDE

9.3.1 Specifications of βM0.4 to βM1 Connectors for Power and

Brake

The specifications of the power and brake connectors (cable side) for
βM0.4 to βM1 are indicated below.
The connector is certified by TÜV.
The connector is drip-proof when fitted.
For power For brake
Connector body Straight 54983-0000 54982-0000
specification
(MOLEX JAPAN Co., Ltd.) Elbow 55765-0000 55766-0000
Contact specification
56052-8100
(MOLEX JAPAN Co., Ltd.)
Applicable 2
0.75 to 1.05 mm (AWG18 to AWG17)
wire size
Wire insulator
outside φ2.5 mm or lower
diameter
Applicable
cable outside φ9.1 to φ9.8 mm φ6.2 to φ6.7 mm
diameter

The connector kit for power and brake indicated below is available.
For power For brake
Connector kit Straight A06B-6114-K230#S A06B-6114-K232#S
specification
(FANUC Elbow A06B-6114-K230#E A06B-6114-K232#E
specification)
Connector body × 1 Connector body × 1
Connector kit components
Contact × 4 Contact × 3

The table below indicates the tools dedicated to the connector.

MOLEX JAPAN specification FANUC specification
Crimping tool 57406-5000 A06B-6114-K234#C
Pull-out tool 57406-6000 A06B-6114-K234#R

NOTE
The contacts of the connectors are so structured
that the wire and insulator are crimped together.
So, be sure to observe the specified insulator
diameter. Other types of wires may be usable,
depending on wire and tool. For details, consult
with the connector manufacturer.

- 62 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

9.3.2 Specifications of βM0.4 to βM1 Connectors for Signal

The specifications of the signal connector (cable side) for βM0.4 and
βM1 are indicated below.
The connector is drip-proof when fitted.
For signal
Connector body Straight JN1DS10SL2 JN1DS10SL1
specification
(Japan Aviation Elbow JN1FS10SL2 JN1FS10SL1
Electronics Industry)
Contact specification
(Japan Aviation Electronics JN1-22-22S
Industry)
2
AWG21 (0.5mm , Strand structure
Applicable wire 20/0.18)
2
size AWG25 (0.18mm , Strand structure
7/0.18)
Wire insulator
outside φ1.5 mm or lower
diameter
Applicable
cable outside φ6.5 to 8.0 mm φ5.7 to 7.3 mm
diameter

The connector kit for signals indicated below is available.

For signal
Connector kit Straight A06B-6114-K200#S
specification
(FANUC specification) Elbow A06B-6114-K200#E
Connector body × 1
(Two types of bushing, one for φ6.5 to
Connector kit components 8.0 and the other for φ5.7 to 7.3, are
included.)
Contact × 10

The table below indicates the tools dedicated to the connector.

Japan Aviation Electronics FANUC specification
Industry specification
Crimping tool CT150-2-JN1-F A06B-6114-K201#JN1L
Pull-out tool ET-JN1 A06B-6114-K201#JN1R

NOTE
The contacts of the connectors are so structured
that the wire and insulator are crimped together.
So, be sure to observe the specified insulator
diameter. Other types of wires may be usable,
depending on wire and tool. For details, consult
with the connector manufacturer.

- 63 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9.4 β1 TO β6 CONNECTORS ON CABLE SIDE

9.4.1 Specifications of β1 to β6 Connectors for Power and Brake

(TÜV-certified and Waterproof Type)

To satisfy the IEC34 standard, the TÜV-certified waterproof plug

connectors and cable clamps indicated below need to be used for
power line and brake unit connection.
If the IEC34 standard needs to be satisfied when a cable seal adapter
or conduit hose seal adapter is used, consult with the connector
manufacturers.

Connector
For power For brake
type
[A] JL04V-6A10SL-3SE-EB
H/MS3106A18-10S-D-T(10)
Plug connector (Japan Aviation Electronics
(HIROSE ELECTRIC)
(Straight type) Industry)
[B] JL04V-8A10SL-3SE-EB
H/MS3108A18-10S-D-T(10)
Plug connector (Japan Aviation Electronics
(HIROSE ELECTRIC)
(Elbow type) Industry)
JL04-1012CK-(07)
[C] H/MS3057-10A(10)
(Japan Aviation Electronics
Cable clamp (HIROSE ELECTRIC)
Industry)
For [A] to [C], see "Example of cable connections" below.

NOTE
TUV has certified that the plug connectors and
cable clamps above, when combined with the
FANUC AC SERVO MOTOR β series, satisfy the
VDE0627 safety standard.
In addition to the plug connectors above, connector
manufacturers offer TÜV-compliant connectors.
For compliance of these connectors with the safety
standard when combined with the FANUC AC
SERVO MOTOR β series, check with each
connector manufacturer. Moreover, contact each
connector manufacturer for details of each series.
- HIROSE ELECTRIC (HRS) :
H/MS310 TUV-compliant series
- Japan Aviation Electronics Industry (JAE) :
JL04V series
- DDK Ltd. (DDK) : CE05 series

- 64 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

Example cable connections

Plug
(straight

Cable clamp

Plug
(elbow type)
Cable seal adapter
(straight

Receptacle
connector
(motor

Cable seal adapter

(90°° elbow type)

Plug
(single-unit block
)

Conduit hose seal

(straight
)

Conduit hose seal

(90°° elbow type)

Conduit

- 65 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9.4.2 Specifications of β1 to β6 Connectors for Power and Brake

(Not TÜV-compliant and Waterproof Type)

When the IEC34 standard need not be satisfied, the waterproof plug
connectors and cable clamps (not TÜV-compliant) indicated below
can be used for power line and brake unit connection.

Connector type For power For brake

H/MS3106A18-10S(10)
H/MS3106A10SL-3S(10) (HIROSE ELECTRIC)
[A] (HIROSE ELECTRIC)
JA06A-10SL-3S-J1-EB
Plug connector JA06A-18-10S-J1-EB
(Japan Aviation Electronics Industry)
(Straight type) (Japan Aviation Electronics Industry)
MS3106A10SL-3S-B-BSS (DDK Ltd.)
MS3106A18-10S-B-BSS (DDK Ltd.)
H/MS3108B18-10S(10) (HIROSE ELECTRIC) H/MS3108B10SL-3S(10) (HIROSE ELECTRIC)
[B]
JA08A-18-10S-J1-EB JA08A-10SL-3S-J1-EB
Plug connector
(Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
(Elbow type)
MS3108A18-10S-B-BAS (DDK Ltd.) MS3108A10SL-3S-B-BAS (DDK Ltd.)
H/MS3057-10A(10) (HIROSE ELECTRIC) H/MS3057-4A(10) (HIROSE ELECTRIC)
[C] JL04-18CK(13) JL04-1012CK-(05)
Cable clamp (Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
CE3057-10A-1(D265) (DDK Ltd.) CE3057-4A-1(D265) (DDK Ltd.)
[D] H/MS3106A18-10S(13) (HIROSE ELECTRIC) H/MS3106A10SL-3S(13) (HIROSE ELECTRIC)
Plug connector JA06A-18-10S-J1-(A72) JA06A-10SL-3S-J1-(A72)
(Single-unit block (Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
type) MS3106A18-10S-B(D190) (DDK Ltd.) MS3106A10SL-3S-B(D190) (DDK Ltd.)
YSO 18-12-14 (Daiwa Dengyou)
[E] YSO 10-5-8 (Daiwa Dengyou)
ACS-12RL-MS18F (Japan Flex)
YLO 18-12-14 (Daiwa Dengyou)
[F] YLO 10-5-8 (Daiwa Dengyou)
ACA-12RL-MS18F (Japan Flex)
BOS 18-15 (Daiwa Dengyou)
[G] BOS 9-10 (Daiwa Dengyou)
RCC-104RL-MS18F (Japan Flex)
BOL 18-15 (Daiwa Dengyou)
[H] BOL 9-10 (Daiwa Dengyou)
RCC-304RL-MS18F (Japan Flex)
For [A] to [H], see the cable connection examples.

By combining a plug connector (single-unit block type) with an

adapter ([D]+([E] to [H]) in "Example cable connection"), cable and
connector waterproofness can be enhanced.
The connector and seal adapters indicated above are compatible with
products based on the MS standard. So, those products compatible
with the MS standard that are not listed above are also usable.
For details of each of the connectors above, check with each
connector manufacturer.

- 66 -
B-65232EN/03 DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series 9.CONNECTORS

9.4.3 Specifications of β1 to β6 Connectors for Power and Brake

(Not TÜV-compliant and Non-waterproof Type)

When the IEC34 standard need not be satisfied, and waterproofness is

not required, the non-waterproof plug connectors and cable clamps
(not TÜV-compliant) indicated below can be used for power and
brake.
Connector
For power For brake
type
H/MSA3106A18-10S(10) (HIROSE ELECTRIC) H/MSA3106A10SL-3S(10) (HIROSE ELECTRIC)
[A]
MS3106B18-10S-(A72) MS3106B10SL-3S-(A72)
Plug connector
(Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
(Straight type)
MS3106B18-10S-B (DDK Ltd.) MS3106A10SL-3S-B (DDK Ltd.)
H/MSA3108B18-10S(10) (HIROSE ELECTRIC) H/MSA3108B10SL-3S(10) (HIROSE ELECTRIC)
[B]
MS3108B18-10S-(A72) MS3108B10SL-3S-(A72)
Plug connector
(Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
(Elbow type)
MS3108B-18-10S-B (DDK Ltd.) MS3108A10SL-3S-B (DDK Ltd.)
H/MSA3057-10A(10) (HIROSE ELECTRIC) H/MSA3057-4A(10) (HIROSE ELECTRIC)
[C] MS3057-10A-(A72) MS3057-4A-(A72)
Cable clamp ﾟ (Japan Aviation Electronics Industry) (Japan Aviation Electronics Industry)
MS3057-16A(D265) (DDK Ltd.) MS3057-4A(D265) (DDK Ltd.)
For [A] to [C], see the cable connection examples.

NOTE
Be sure to use a waterproof connector where
waterproofness is required.

- 67 -
9.CONNECTORS DESCRIPTIONS FOR FANUC AC SERVO MOTOR β series B-65232EN/03

9.4.4 Specifications of β1 to β6 Connectors for Signal

D-sub connectors are used as standard for the signal lines of the
models β1 to β6. The D-Sub connectors are not water-proof.
To ensure waterproofness, a special connector cover is required.
The specifications of the cable-side special connectors are given
below.
Item Manufacturer FANUC specification
Connector kit
(The D-Sub connector
- A06B-6050-K115
and water-proof cover are
packaged together.)
HDAB-15S
(Soldering type)
D-Sub connector (female) A63L-0001-0434/AB15SNO
(HIROSE
ELECTRIC)
HDAW-15CV
Waterproof cover (HIROSE A63L-0001-0496
ELECTRIC)

- 68 -
II. FANUC AC SERVO MOTOR βM series
B-65232EN/03 FANUC AC SERVO MOTOR β series 1.TYPES OF MOTORS AND DESIGNATION

1 TYPES OF MOTORS AND DESIGNATION

The types and specifications of βM series servo motors are described
as follows.

Models
βM0.2/4000 and βM0.3/4000
A06B-011x-Byzz

x
1 : Model βM0.2/4000
2 : Model βM0.3/4000

y
0 : Straight shaft
1 : Straight shaft with a 24VDC brake

zz
75 : With the pulse coder βA64B

Models
βM0.4/4000, βM0.5/4000,
and βM1/4000
A06B-011x-Byzz

x
4 : Model βM0.4/4000
5 : Model βM0.5/4000
6 : Model βM1/4000

y
0 : Straight shaft
1 : Straight shaft with a 24VDC brake

zz
75 : With the pulse coder βA64B
77 : With the pulse coder βI64B

- 71 -
1.TYPES OF MOTORS AND DESIGNATION FANUC AC SERVO MOTOR β series B-65232EN/03

NOTE
1 The resolution of the βA64B and βI64B pulse
coders is 65,536/rev.
2 The standard shafts used for βM series motor are
straight shafts. Use a straight shaft as far as
circumstances, such as the delivery time and
maintenance, permit.
3 To specify a straight shaft with a key, suffix the
motor specification with #0008.

- 72 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2 SPECIFICATIONS AND
CHARACTERISTICS

- 73 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

2.1 TYPE OF MOTORS AND SPECIFICATIONS

Item Unit β M0.2/4000 β M0.3/4000 β M0.4/4000 β M0.5/4000 β M1/4000

W 50 100 125 200 400
Output
HP 0.07 0.13 0.17 0.3 0.5
Nm 0.16 0.32 0.4 0.65 1.2
Rated torque at stall
kgfcm 1.6 3.2 4.0 6.6 12
-1
Rated rotation speed min 4000 4000 4000 4000 4000
-1
Maximum rotation speed min 5000 5000 5000 5000 5000
2
kgm 0.0000019 0.0000034 0.00001 0.000018 0.000034
Rotor inertia 2
kgfcms 0.000019 0.000035 0.0001 0.00018 0.00035
Weight kg 0.33 0.44 0.8 1.0 1.5

NOTE
The above values are under the condition at 20°C.

- 74 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2.2 CHARACTERISTIC CURVE AND DATA SHEET

See Section 4.2 of Part I of this manual for details of each item.
(1) Speed - torque characteristics
Typical characteristics of speed and output torque are indicated.
The data curve shown in this specification is for the rated input
voltage (200V). Note, however, that the intermittent operating
zone varies with the input voltage of the driving unit.
(2) Overload duty characteristic
The overload duty characteristic curves are determined based on
the temperature restriction for the single motor unit (such as
protection based on a thermal protector). The curves are
determined by assuming that the temperature increases gradually
under certain overload conditions. Therefore, the curves do not
apply to the rapid temperature rise which occurs, for example,
when an overcurrent flows in the motor windings until the
thermal trip operates.
A thermal software function is provided to prevent an abrupt
temperature rise in the motor by monitoring for abnormal current
in the motor. This function may put a thermal limit to the
operation of the motor when it is frequently accelerated and
decelerated.
Driving units (such as amplifiers) contain their own overheating
protection devices. Therefore, note that the operation of motor
may be limited according to thermal limit of driver.
(3) Data sheet
The parameters given in the data sheet are representative values
for an ambient temperature of 20°C. They are subject to an error
of ±10%.
The indicated logical values are threshold values for the single
motor unit (when the motor is not restricted by the control
system).
The maximum torque that can be produced during acceleration
or deceleration is temporarily calculated as the approximate
product of the motor torque constant and the current limit value
of the amplifier.
Example : βM0.5/4000
Motor torque constant = 0.22(Nm/Arms)
Amplifier limit value = 20Apeak
Maximum torque value = 20 × 0.707 × 0.22 = 3.1(Nm)
↑ (Converted to an effective value)
However, this value is a theoretical value. So, the actual
maximum torque depends on the motor, amplifier, servo
software, and power supply used. Particularly when a maximum
current flows through the motor, the actual maximum torque can
be far less than a calculated value due to an influence such as
magnetic saturation.
The data curve of speed-torque characteristics indicates typical
data obtained by combining a motor with an amplifier actually. It
is requested to make a study based on the data curve.

- 75 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Model βM0.2/4000
Specification : A06B-0111-Bxxx

Speed - torque characteristics Over load duty characteristics

0.6 100
90
0.5 110%
80
70 120%
0.4
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
0.3 50
150%
40
170%
0.2
30
210%
20
0.1
Continuous operating 10 MAX
0 0
0 1000 2000 3000 4000 5000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 4000 min
0.16 Nm
Rated torque at stall (*) Ts
1.6 kgfcm
2
0.0000019 kgm
Rotor inertia Jm 2
0.000019 kgfcms
Continuous RMS current at stall (*) Is 0.84 A(rms)
0.19 Nm/A(rms)
Torque constant (*) Kt
1.9 kgfcm/A(rms)
-1
Ke 6.7 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.064 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 6.0 Ω
Mechanical time constant tm 0.0009 s
Thermal time constant tt 5 min
0.02 Nm
Static friction Tf
0.2 kgfcm
Mass 0.33 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

NOTE
The data above indicates torque characteristics obtained when HRV2 control is
used for driving. When HRV1 control and an I/O link β amplifier are used for driving,
the intermittent operating zone is limited.

- 76 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Model βM0.3/4000
Specification : A06B-0112-Bxxx

Speed - torque characteristics Over load duty characteristics

1.2 100
90
1 110%
80
70 120%
0.8
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
0.6 50
150%
40
170%
0.4
30
210%
20
0.2
Continuous operating 10 MAX
0 0
0 1000 2000 3000 4000 5000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 4000 min
0.32 Nm
Rated torque at stall (*) Ts
3.3 kgfcm
2
0.0000034 kgm
Rotor inertia Jm 2
0.000035 kgfcms
Continuous RMS current at stall (*) Is 0.84 A(rms)
0.38 Nm/A(rms)
Torque constant (*) Kt
3.9 kgfcm/A(rms)
-1
Ke 13 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.13 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 10 Ω
Mechanical time constant tm 0.0007 s
Thermal time constant tt 8 min
0.02 Nm
Static friction Tf
0.2 kgfcm
Mass 0.44 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

NOTE
The data above indicates torque characteristics obtained when HRV2 control is
used for driving. When HRV1 control and an I/O link β amplifier are used for driving,
the intermittent operating zone is limited.

- 77 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Model βM0.4/4000
Specification : A06B-0114-Bxxx

Speed - torque characteristics Over load duty characteristics

1.2 100
90
1 110%
80
70 120%
0.8
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
0.6 50
150%
40
170%
0.4
30
210%
20
0.2
Continuous operating 10 MAX
0 0
0 1000 2000 3000 4000 5000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 4000 min
0.4 Nm
Rated torque at stall (*) Ts
4.1 kgfcm
2
0.00001 kgm
Rotor inertia Jm 2
0.0001 kgfcms
Continuous RMS current at stall (*) Is 3.5 A(rms)
0.12 Nm/A(rms)
Torque constant (*) Kt
1.2 kgfcm/A(rms)
-1
Ke 4.0 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.038 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 0.5 Ω
Mechanical time constant tm 0.001 s
Thermal time constant tt 8 min
0.04 Nm
Static friction Tf
0.4 kgfcm
Mass 0.8 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

NOTE
The data above indicates torque characteristics obtained when HRV2 control is
used for driving. This motor cannot be driven by HRV control and I/O Link β
amplifier.

- 78 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Model βM0.5/4000
Specification : A06B-0115-Bxxx

Speed - torque characteristics Over load duty characteristics

3 100
90
2.5 110%
80
70 120%
2
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
1.5 50
150%
40
170%
1
30
210%
20
0.5
Continuous operating 10 MAX
0 0
0 1000 2000 3000 4000 5000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 4000 min
0.65 Nm
Rated torque at stall (*) Ts
6.6 kgfcm
2
0.000018 kgm
Rotor inertia Jm 2
0.00018 kgfcms
Continuous RMS current at stall (*) Is 3.0 A(rms)
0.22 Nm/A(rms)
Torque constant (*) Kt
2.3 kgfcm/A(rms)
-1
Ke 7.7 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.074 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 0.9 Ω
Mechanical time constant tm 0.0009 s
Thermal time constant tt 10 min
0.04 Nm
Static friction Tf
0.4 kgfcm
Mass 1.0 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 79 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Model βM1/4000
Specification : A06B-0116-Bxxx

Speed - torque characteristics Over load duty characteristics

6 100
90
5 110%
80
70 120%
4
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
3 50
150%
40
170%
2
30
210%
20
1
Continuous operating 10 MAX
0 0
0 1000 2000 3000 4000 5000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 4000 min
1.2 Nm
Rated torque at stall (*) Ts
12 kgfcm
2
0.000034 kgm
Rotor inertia Jm 2
0.00035 kgfcms
Continuous RMS current at stall (*) Is 2.7 A(rms)
0.44 Nm/A(rms)
Torque constant (*) Kt
4.5 kgfcm/A(rms)
-1
Ke 15.4 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.14 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 1.6 Ω
Mechanical time constant tm 0.0007 s
Thermal time constant tt 15 min
0.04 Nm
Static friction Tf
0.4 kgfcm
Mass 1.5 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 80 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2.3 SPEED-TORQUE CHARACTERISTICS WHEN HRV1

CONTROL AND AN I/O Link β AMPLIFIER ARE USED

[Model βM0.2/4000]
0.6

0.5

Torque (Nm) 0.4

Intermittent operating
0.3

0.2

0.1
Continuous operating
0
0 1000 2000 3000 4000 5000
Speed (min-1)

[Model βM0.3/4000]
1.2

1
Torque (Nm)

0.8
Intermittent operating
0.6

0.4

0.2
Continuous operating
0
0 1000 2000 3000 4000 5000
Speed (min-1)

NOTE
HRV2 control may not be usable with some CNC
systems.
When HRV1 control and an I/O link β amplifier are
used, the intermittent operating zone is limited.
The continuous operating zone is equivalent to that
applicable when HRV2 control is used.

- 81 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

2.4 OUTLINE DRAWINGS

Model Fig. No.

Models βM0.2 and βM0.3 : Outline drawing (standard) Fig.2.4(a)
Models βM0.2 and βM0.3 : Outline drawing (with a brake) Fig.2.4(b)
Models βM0.2 and βM0.3 : Shaft option Fig.2.4(c)
Models βM0.4, βM0.5, and βM1 : Outline drawing (standard) Fig.2.4(d)
Models βM0.4, βM0.5, and βM1 : Outline drawing (with a brake) Fig.2.4(e)
Models βM0.4 and βM0.5: Shaft option Fig.2.4(f)
Models βM1: Shaft option Fig.2.4(g)
Models βM0.4, βM0.5, and βM1 : Connector mating diagram (elbow) Fig.2.4(h)
Models βM0.4, βM0.5, and βM1 : Connector mating diagram (straight) Fig.2.4(i)

- 82 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(a) Models βM0.2 and βM0.3 : Outline drawing (standard)

- 83 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(b) Models βM0.2 and βM0.3 : Outline drawing (with a brake)

- 84 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(c) Models βM0.2 and βM0.3 : Shaft option

- 85 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(d) Models βM0.4, βM0.5, and βM1 : Outline drawing (standard)

- 86 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(e) Models βM0.4, βM0.5, and βM1 : Outline drawing (with a brake)

- 87 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(f) Models βM0.4 and βM0.5: Shaft option

- 88 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(g) Model βM1: Shaft option

- 89 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(h) Models βM0.4, βM0.5, and βM1 : Connector mating diagram (elbow)

- 90 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(i) Models βM0.4, βM0.5, and βM1 : Connector mating diagram (straight)

- 91 -
III. FANUC AC SERVO MOTOR β series
B-65232EN/03 FANUC AC SERVO MOTOR β series 1.TYPES OF MOTORS AND DESIGNATION

1 TYPES OF MOTORS AND DESIGNATION

The types and specifications of β series servo motors are described as
follows.

Models
β1/3000, β2/3000, β3/3000, and β6/2000

A06B-00xx-Byzz

xx
31 : Model β1/3000
32 : Model β2/3000
33 : Model β3/3000
34 : Model β6/2000

y
0 : Straight shaft
1 : Straight shaft with a 90VDC brake
5 : Taper shaft
6 : Taper shaft with a 90VDC brake

zz
75 : With the pulse coder βA32B
77 : With the pulse coder βI32B

NOTE
1 The resolution of the βA32B and βI32B serial pulse
coders is 32,768/rev.
2 The standard shafts used for β series motor are
straight shafts. Use a straight shaft as far as
circumstances, such as the delivery time and
maintenance, permit.
3 To specify a straight shaft with a key, suffix the
motor specification with #0008.
4 A woodruff key is attached to the tapered shaft as a
standard.

- 95 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

2 SPECIFICATIONS AND
CHARACTERISTICS

- 96 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2.1 TYPE OF MOTORS AND SPECIFICATIONS

Item Unit β 1/3000 β 2/3000 β 3/3000 β 6/2000

kW 0.3 0.5 0.5 0.9
Output
HP 0.4 0.67 0.67 1.2
Nm 1 2 3 6
Rated torque at stall
kgfcm 10 20 30 60
-1
Rated rotation speed min 3000 3000 3000 2000
Maximum rotation -1 4000 4000 4000 3000
min
speed (3000) (3000) (3000) (2000)
2
kgm 0.00033 0.00065 0.0019 0.0039
Rotor inertia 2
kgfcms 0.0034 0.0067 0.020 0.040
Weight kg 2.5 3.5 5.0 8.5

(*) Maximum speed when HRV control is applied. When

conventional control is applied, the maximum speed will be as
indicated in the parentheses.

NOTE
The above values are under the condition at 20°C.

- 97 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

2.2 CHARACTERISTIC CURVE AND DATA SHEET

See Section 4.2 of Part I of this manual for details of each item.
(1) Speed - torque characteristics
Typical characteristics of speed and output torque are indicated.
The data curve shown in this specification is for the rated input
voltage (200V). Note, however, that the intermittent operating
zone varies with the input voltage of the driving unit.
(2) Overload duty characteristic
The overload duty characteristic curves are determined based on
the temperature restriction for the single motor unit (such as
protection based on a thermal protector). The curves are
determined by assuming that the temperature increases gradually
under certain overload conditions. Therefore, the curves do not
apply to the rapid temperature rise which occurs, for example,
when an overcurrent flows in the motor windings until the
thermal trip operates.
A thermal software function is provided to prevent an abrupt
temperature rise in the motor by monitoring for abnormal current
in the motor. This function may put a thermal limit to the
operation of the motor when it is frequently accelerated and
decelerated.
Driving units (such as amplifiers) contain their own overheating
protection devices. Therefore, note that the operation of motor
may be limited according to thermal limit of driver
The parameters given in the data sheet are representative values
for an ambient temperature of 20°C. They are subject to an error
of ±10%.
The indicated logical values are threshold values for the single
motor unit (when the motor is not restricted by the control
system).
The maximum torque that can be produced during acceleration
or deceleration is temporarily calculated as the approximate
product of the motor torque constant and the current limit value
of the amplifier.
Example : β1/3000
Motor torque constant = 0.31(Nm/Arms)
Amplifier limit value = 12Apeak
Maximum torque value = 12 × 0.707 × 0.31 = 2.6(Nm)
↑ (Converted to an effective value)
However, this value is a theoretical value. So, the actual
maximum torque depends on the motor, amplifier, servo
software, and power supply used. Particularly when a maximum
current flows through the motor, the actual maximum torque can
be far less than a calculated value due to an influence such as
magnetic saturation.
The data curve of speed-torque characteristics indicates typical
data obtained by combining a motor with an amplifier actually. It
is requested to make a study based on the data curve.

- 98 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Model β1/3000
Specification : A06B-0031-Bxxx

Speed - torque characteristics Over load duty characteristics

4 100
90
110%
80
3 120%
70
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
2 50
150%
40
170%
30
1 210%
20
MAX
Continuous operating 10
0 0
0 1000 2000 3000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 3000 min
1 Nm
Rated torque at stall (*) Ts
10 kgfcm
2
0.00033 kgm
Rotor inertia Jm 2
0.0034 kgfcms
Continuous RMS current at stall (*) Is 3.2 A(rms)
0.31 Nm/A(rms)
Torque constant (*) Kt
3.2 kgfcm/A(rms)
-1
Ke 10.9 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.10 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 0.96 Ω
Mechanical time constant tm 0.0011 s
Thermal time constant tt 15 min
0.1 Nm
Static friction Tf
1 kgfcm
Mass 2.5 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 99 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Model β2/3000
Specification : A06B-0032-Bxxx

Speed - torque characteristics Over load duty characteristics

8 100
90
110%
80
6 120%
70
60 130%
Torque (Nm)

Duty (time %)
Intermittent operating
140%
4 50
150%
40
170%
30
2 210%
20
MAX
Continuous operating 10
0 0
0 1000 2000 3000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 3000 min
2 Nm
Rated torque at stall (*) Ts
20 kgfcm
2
0.00065 kgm
Rotor inertia Jm 2
0.0067 kgfcms
Continuous RMS current at stall (*) Is 3.2 A(rms)
0.61 Nm/A(rms)
Torque constant (*) Kt
6.2 kgfcm/A(rms)
-1
Ke 21.4 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.20 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 1.45 Ω
Mechanical time constant tm 0.008 s
Thermal time constant tt 20 min
0.1 Nm
Static friction Tf
1 kgfcm
Mass 3.5 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 100 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Model β3/3000
Specification : A06B-0033-Bxxx

Speed - torque characteristics Over load duty characteristics

10 100
90
110%
8 80
70 120%

6 60 130%
Torque (Nm)

Duty (time %)
Intermittent operating 140%
50
150%
4 40
170%
30
210%
2 20
MAX
Continuous operating 10
0 0
0 1000 2000 3000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 3000 min
3 Nm
Rated torque at stall (*) Ts
30 kgfcm
2
0.0019 kgm
Rotor inertia Jm 2
0.020 kgfcms
Continuous RMS current at stall (*) Is 5.3 A(rms)
0.56 Nm/A(rms)
Torque constant (*) Kt
5.7 kgfcm/A(rms)
-1
Ke 19.4 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.18 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 0.57 Ω
Mechanical time constant tm 0.009 s
Thermal time constant tt 40 min
0.3 Nm
Static friction Tf
3 kgfcm
Mass 5.0 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 101 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Model β6/2000
Specification : A06B-0034-Bxxx

Speed - torque characteristics Over load duty characteristics

20 100
90
80
15
70
60
Torque (Nm)

Duty (time %)
Intermittent operating
10 50
40
30
5
20
Continuous operating 10
0 0
0 500 1000 1500 2000 1 10 100 1000
Speed (min-1) "ON" time (sec.)

Data sheet
Parameter Symbol Value Unit
-1
Rating rotation speed Nmax 2000 min
6 Nm
Rated torque at stall (*) Ts
60 kgfcm
2
0.0039 kgm
Rotor inertia Jm 2
0.040 kgfcms
Continuous RMS current at stall (*) Is 5.6 A(rms)
1.05 Nm/A(rms)
Torque constant (*) Kt
10.7 kgfcm/A(rms)
-1
Ke 37.0 V(rms)/1000min
Back EMF constant (1-phase) (*)
Kv 0.35 V(rms)sec/rad
Armature resistance (1-phase) (*) Ra 0.87 Ω
Mechanical time constant tm 0.009 s
Thermal time constant tt 40 min
0.3 Nm
Static friction Tf
3 kgfcm
Mass 8.5 kg

(*) The values are the standard values at 20°C and the tolerance is ±10%.
The speed-torque characteristics very depending on the type of software, parameter setting, and input
voltage of the digital servo motor. (The above figures show average values.)
These values may be changed without prior notice.

- 102 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2.3 SPEED-TORQUE CHARACTERISTICS FOR HRV

CONTROL

[Model β1/3000]
4

Intermittent operating
Torque (Nm)

Continuous operating

0
0 1000 2000 3000 4000
-1
Speed (min )

[Model β2/3000]
8

6
Torque (Nm)

Intermittent operating
4

Continuous operating

0
0 1000 2000 3000 4000
Speed (min-1)

- 103 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

[Model β3/3000]
10

Torque (Nm)
Intermittent operating

2
Continuous operating

0
0 1000 2000 3000 4000
Speed (min-1)

[Model β6/2000]
20

15

Intermittent operating
Torque (Nm)

10

Continuous operating

0
0 1000 2000 3000
Speed (min-1)

NOTE
Some CNC systems do not support HRV control.
Applying HRV control causes the intermittent
operating area to be expanded, at high speed.
The continuous operating area is the same as that
conventional control.

- 104 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

2.4 OUTLINE DRAWINGS

Model Fig. No.

Models β1 and β2 : Outline drawing (standard) Fig.2.4(a)
Models β1 and β2 : Outline drawing (with a brake) Fig.2.4(b)
Models β1 and β2 : Shaft option Fig.2.4(c)
Models β3 and β6 : Outline drawing (standard) Fig.2.4(d)
Models β3 and β6 : Outline drawing (with a brake) Fig.2.4(e)
Models β3 and β6 : Shaft option Fig.2.4(f)

- 105 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(a) Models β1 and β2 : Outline drawing (standard)

ON φ115 D.B.C.

LESS THAN R0.3

Note
SHAFT DIA. RUNOUT MAX 0.02 mm
Motor model RABBET DIA. ECCENTRICITY MAX 0.04 mm
MOUNTING FACE RUNOUT MAX 0.06 mm
MAXIMUM RADIAL LOAD 245N (25kgf)

Fig.2.4(b) Models β1 and β2 : Outline drawing (with a brake)

ON φ115 D.B.C.

NECKING

Note
SHAFT DIA. RUNOUT MAX 0.02 mm
Motor model RABBET DIA. ECCENTRICITY MAX 0.04 mm
MOUNTING FACE RUNOUT MAX 0.06 mm
MAXIMUM RADIAL LOAD 245 N (25kgf)

- 106 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(c) Models β1 and β2 : Shaft option

Standard
Straight shaft

LESS THAN R0.3

CHAMFERING

DETAIL OF NECKING

Option (1)
Straight shaft with a key

DEPTH 10

NECKING

Option (2)
Taper shaft 1/10 TAPER

1/10 TAPER

- 107 -
2.SPECIFICATIONS AND CHARACTERISTICS FANUC AC SERVO MOTOR β series B-65232EN/03

Fig.2.4(d) Models β3 and β6 : Outline drawing (standard)

ON φ165 D.B.C.

NECKING

141 OCTAGON

Note
SHAFT DIA. RUNOUT MAX 0.02 mm
Motor model RABBET DIA. ECCENTRICITY MAX 0.04 mm
MOUNTING FACE RUNOUT MAX 0.06 mm
MAXIMUM RADIAL LOAD 686 N (70kgf)

Fig.2.4(e) Models β3 and β6 : Outline drawing (with a brake)

ON φ165 D.B.C.

NECKING

141 OCTAGON

Note
SHAFT DIA. RUNOUT MAX 0.02 mm
Motor model RABBET DIA. ECCENTRICITY MAX 0.04 mm
MOUNTING FACE RUNOUT MAX 0.06 mm
MAXIMUM RADIAL LOAD 686 N (70kgf)

- 108 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 2.SPECIFICATIONS AND CHARACTERISTICS

Fig.2.4(f) Models β3 and β6 : Shaft option

Standard
Straight shaft

DETAIL OF NECKING (4 : 1)

2-M4 DEPTH 10

Option (1)
Straight shaft with a key

NECKING

1/10 TAPER

Option (2)
Taper shaft

1/10 TAPER

- 109 -
IV. FANUC AC SERVO AMPLIFIER β series
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 1.OVERVIEW

1 OVERVIEW
The main features of servo amplifier β series are as follows:
Features not dependent on the interface
(1) The servo amplifier β series is integrated with a power supply
unit, so that a compact system can be implemented for one or
two axes.
(2) The servo amplifier β series offers low-cost one-axis AC servo
amplifiers.
(3) The servo amplifier β series offers models that support not only
the FANUC standard interface, namely, the FSSB interface, but
also the I/O Link interface available with the CNC, Power Mate,
and PLC, and the conventional interface, namely, the PWM
interface (type B).
(4) The dimensions of each amplifier are the same even if a different
interface is employed.
(5) The servo amplifier β series offers a compact unit with its
amounting space and cubic volume reduced by about 50% when
compared with α SVU.
(6) The amplifier unit has been designed to conform to the European
VDE0160 safety standard, American UL standards, and
Canadian CSA standards.
The servo amplifier β series with the FSSB interface has the
following features:
(1) The servo amplifier β series with the FSSB interface offers one-
axis AC servo amplifiers that are designed for feed axes and are
used to drive the servo motor β series suitable for positioning
and the servo motor αi series suitable for use with feed axes.
The servo amplifier β series with the I/O Link interface has the
following features in addition to "Features not dependent on the
interface":
(1) Offer one-axis AC servo amplifiers suitable for use with
positioning axes, and used to drive the servo motor β series and
servo motor αi series.
(2) Have a position control function as well as a set to facilitate
control over peripheral devices such as turrets and ATCs.
(3) Can be connected to the Series 16/18/21/15i/16i/18i/20i/21i,
Power Mate, Power Mate i PMC, and PLC via the I/O Link,
thereby facilitating positioning axis expansion.
(4) Enable the master CNC to set and display parameters, the current
position, and diagnosis data.
(5) Support move commands that make movement synchronize with
a train of external pulses, thereby enabling diverse use.

- 113 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2 CONFIGURATION
Following contents shows an example system configuration having
two controlled axes. A separated regenerative discharge unit nay be
required to handle large amounts of regenerative energy if the load is
particularly heavy.

- 114 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.1 FSSB INTERFACE

2.1.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 115 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.1.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 116 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.1.3 SVU-40, SVU-80 (Three-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 117 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.1.4 SVU-40, SVU-80 (Single-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 118 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.2 I/O Link INTERFACE

2.2.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input)

Example of configuration

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 119 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.2.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)

Example of configuration

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 120 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.2.3 SVU-40, SVU-80 (Three-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 121 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.2.4 SVU-40, SVU-80 (Single-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 122 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.3 PWM INTERFACE

2.3.1 SVU-4, SVU-12, SVU-20 (Three-phase Power Input)

Example of configuration

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 123 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.3.2 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)

Example of configuration

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 124 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.3.3 SVU-40, SVU-80 (Three-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 125 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.3.4 SVU-40, SVU-80 (Single-phase Power Input)

WARNING
A circuit breaker, electromagnetic contactor, and
AC line filter must be installed.

- 126 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.4 METHOD OF CONNECTING THE FAN MOTOR

Connect cables of two fan motors to the connector (CX18X, CX18Y)

of servo amplifier unit. There is no distinction in CX18X and CX18Y.
When the cable is attached or detached to the connector, keep cables
loose and not stress to the connector.
Be careful because poor contact may be caused when the fan motor is
connected under the condition that the cable spreads.

- 127 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.5 UNIT TYPES AND SPECIFICATIONS

Table 2.5(a) Unit types and specifications (1)

Model Specification Interface Application
SVU-4 A06B-6093-H119 FSSB For a feed axis that requires high precision
A06B-6093-H159 I/O Link For positioning that does not require high precision
SVU-12 A06B-6093-H111 FSSB For a feed axis that requires high precision
A06B-6093-H151 I/O Link For positioning that does not require high precision
A06B-6093-H101 PWM For a feed axis that requires high precision
SVU-20 A06B-6093-H112 FSSB For a feed axis that requires high precision
A06B-6093-H152 I/O Link For positioning that does not require high precision
A06B-6093-H102 PWM For a feed axis that requires high precision
SVU-40 A06B-6093-H113 FSSB For a feed axis that requires high precision
A06B-6093-H153 I/O Link For positioning that does not require high precision
A06B-6093-H103 PWM For a feed axis that requires high precision
SVU-80 A06B-6093-H114 FSSB For a feed axis that requires high precision
A06B-6093-H154 I/O Link For positioning that does not require high precision
A06B-6093-H104 PWM For a feed axis that requires high precision

αi series servo motor)

Table 2.5(b) Applicable motor (α
Motor
1 2 3 4 8 12 22
model
α1 α2 α4 α8 α12 α22
αi /5000i /5000i /4000i /3000i /3000i /3000i
(20A) (20A) (40A) (40A) (80A) (80A)
Amplifier
αM2 αM3 αM8 αM12
model
αMi /5000i /5000i /4000i /4000i
(20A) (20A) (80A) (80A)
αC4 αC8 αC12 αC22 αC30
αCi /3000i /2000i /2000i /2000i /1500i
(20A) (20A) (20A) (40A) (80A)
H112
SVU-20 H152 O O O O O O
H102
H113
SVU-40 H153 O O O
H103
H114
SVU-80 H154 O O O O
H104

- 128 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

β M, β series servo motor)

Table 2.5(c) Applicable motor (β
Motor
0.2 0.3 0.4 0.5 1 2 3 6
model
βM0.2 βM0.3 βM0.4 βM0.5 βM1
Amplifier
βM /4000 /4000 /4000 /4000 /4000
model
(4A) (4A) (20A) (20A) (20A)
β1 β2 β3 β6
β
/3000 /3000 /3000 /2000
H119
SVU-4 O O
H159
H111
SVU-12 H151 O O
H101
H112 O
SVU-20 H152 O O O O
H102 O

- 129 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

Table 2.5(d) Unit types and specifications (2)

Classification Name Application Specification
Type A: For applications where the sum of the rated motor
A81L-0001-0083#3C
powers does not exceed 5.4 kW
AC line filter Type B: For applications where the sum of the rated motor
Basic A81L-0001-0101#C
(Note 1) powers does not exceed 10.5 kW
Type C: For applications where the sum of the rated motor
A81L-0001-0102
powers does not exceed 23 kW
Power Type SAE : Capacity 2.2kVA A80L-0022-0005
transformer for Type SBE : Capacity 3.5kVA A80L-0024-0006
export Type SCE : Capacity 5.0kVA A80L-0026-0003
(Note 2) Type SDE : Capacity 7.5kVA A80L-0028-0001
30Ω/20W
For SVU-4, SVU-12, SVU-20 A06B-6093-H401
at natural cooling
30Ω/100W
For SVU-4, SVU-12, SVU-20 A06B-6093-H402 (Note 3)
Separated at natural cooling
Option
regenerative 16Ω/200W
For SVU-40, SVU-80 A06B-6089-H500
discharge unit at natural cooling
(Caution) 16Ω/800W
For SVU-40, SVU-80 A06B-6089-H713
with cooling fan motor
16Ω/1200W
For SVU-40, SVU-80 A06B-6089-H714
with cooling fan motor
With forced air cooling
Fan adapter For SVU-40, SVU-80 A06B-6078-K002
(Note 4)

CAUTION
A separated regenerative discharge unit must be used when the amount of
regenerative energy produced by the motor exceeds a specified value because of a
high load inertia of frequent acceleration/deceleration.
Refer to Chapter 4 "Separated regenerative discharge unit" for details of
regenerative discharge unit. For information about connections, see Part V,
"CONNECTION". An incorrect connection can damage the amplifier. Care must be
taken.

NOTE
1 An AC line filter must be used to suppress the influences of high-frequency noise on
the power supply.
When a power transformer (insulation type) is used because a power supply voltage
within the specified range is not available, this AC line filter is not necessary. If the
use of this AC line filter fails to fully satisfy EMC requirements the use of a
commercially available noise filter is recommended.
2 At single-phase power input, it is not necessary.
If the line voltage is higher than 200/220/230 VAC, use a power transformer. When
a transformer is used, as AC line filter usually becomes unnecessary, however in
case that requirements of EMC standard are still not satisfied, AC line filter will be
needed.
3 A06B-6093-H402 contains a connector kit for connection with a β series amplifier as
a standard accessory.

- 130 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

Table 2.5(e) Unit types and specifications (for SVU-4, SVU-12, SVU-20)
Classification Name Application Specification
Connector Solder type A06B-6073-K212
JX5 : For ESP signal
(PWM) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JS1B : NC-SVU command cable
(PWM) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JD1A : For I/O Link
(I/O Link) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JD1B : For I/O Link
(I/O Link) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JA35 : For built-in DI input cable
(I/O Link) Crimp type A06B-6073-K213
Connector
Basic JF1 : For pulse coder F/B cables A06B-6073-K214
(common)
Connector
JA34 : For external pulse input cable A06B-6073-K214
(common)
Connector CX11-1, 3, 4, 5 and dummy plug for 6: When a (Caution)
(common) regenerative discharge unit is not used A06B-6093-K305
Connector CX11-1, 3, 4, 5: When a regenerative discharge (Caution)
(common) unit is used A06B-6093-K306
Connector
CX11-4, 5: When the cross-sectional area of wire
(common) 2 A06B-6093-K304
exceeds 0.5 mm
(Note 1)
Fuse For protecting control power 24 VDC from a
A06B-6073-K250
(common) short-circuit
Connector CX5X, Y: For battery cable A06B-6093-K303
Battery For absolute pulse coders. Connection method 1
A06B-6093-K002
case (Note 2)
For absolute pulse coders. Connection method 1
Battery A06B-6093-K001
(Note 2)
Battery For absolute pulse coders. Connection method 2
A06B-6050-K060
case (Note 2)
Option
For absolute pulse coders. Connection method 2
Battery A06B-6050-K061
(Note 2)
Battery For absolute pulse coders (Cable length: 5m).
A06B-6093-K810
case Connection method 2 (Note 2)
Lightning Not complying with the standard (Warning) A06B-6077-K141
surge
Complying with the standard (Warning) A06B-6077-K142
absorber

The terms "PWM," " I/O Link," and "common" used in the Name column indicate what interface to be used.
PWM : The PWM interface is used.
I/O Link : The I/O Link interface is used.
Common : Both PWM and I/O Link interfaces can be used.

- 131 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

WARNING
At the power input of the power magnetics cabinet, install a surge absorber between
the power lines and between each power line and a ground to protect the unit from a
voltage surge caused by lightning.
See Section 7.5 for details of the lightning surge absorber.

CAUTION
Refer to Chapter 4 "Separated regenerative discharge unit" for details of
regenerative discharge unit. For information about connections, see Part V,
"CONNECTION". An incorrect connection can damage the amplifier. Care must be
taken.

NOTE
1 When multiple β series amplifiers are connected, and a wire with a diameter of 0.53
2
mm or more needs to be used, select this connector. The supply current of the
control power supply per β series amplifier is 0.6 A for the FSSB interface, 0.9 A for
the I/O Link interface, or 0.4 A for the PWM interface. So, select an appropriate wire
according to the number of β series amplifiers to be connected.
2 There are two methods of connecting the batteries for the absolute pulse coder.
Specify an appropriate battery case and battery according to the connection method
selected.

Up to six units

- 132 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

Table 2.5(f) Unit types and specifications (for SVU-40, SVU-80)

Classification Name Application Specification
Connector
CX21: For input power line Crimp type A06B-6093-K311
(common)
Connector CX22: For motor power line
2 Crimp type A06B-6093-K312
(common) (cross-sectional area of wire is under 3.5 mm )
Connector CX22: For motor power line
2 Crimp type A06B-6093-K313
(common) (cross-sectional area of wire is under 3.5 mm )
CX20, CX23:For regenerative discharge resistor
Connector A06B-6093-K314
(When separate regenerative discharge resistor is Crimp type
(common) (Note 1)
not used.)
CX20, CX23: For regenerative discharge resistor
Connector A06B-6093-K315
(When separate regenerative discharge resistor is Crimp type
(common) (Note 1)
used.)
Connector
CX19A/B: For 24 VDC input/output connector Crimp type A06B-6093-K316
(common)
Connector A06B-6093-K317
CX19A/B: For 24 VDC input/output connector Crimp type
(common) (Note 2)
Basic Connector
JF1 : For pulse coder F/B cables Solder type A06B-6073-K214
(common)
Fuse
For protecting control power 24 VDC from a short-circuit A06B-6073-K250
(common)
Connector Solder type A06B-6073-K212
JX5 : For ESP signal
(PWM, FSSB) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JS1B : NC-SVU command cable
(PWM) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JD1A : For I/O Link
(I/O Link) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JD1B : For I/O Link
(I/O Link) Crimp type A06B-6073-K213
Connector Solder type A06B-6073-K212
JA35 : For built-in DI input cable
(I/O Link) Crimp type A06B-6073-K213
Connector
JA34 : For external pulse input cable A06B-6073-K214
(I/O Link)
Connector
CX5X, Y : For battery A06B-6093-K303
(common)
Battery case
For absolute pulse coders. Connection method 1 (Note 3) A06B-6093-K002
(common)
Battery
For absolute pulse coders. Connection method 1 (Note 3) A06B-6093-K001
(common)
Option Battery case
For absolute pulse coders. Connection method 2 (Note 3) A06B-6050-K060
(common)
Battery
For absolute pulse coders. Connection method 2 (Note 3) A06B-6050-K061
(common)
Lightning
Not complying with the standard (Note 4) A06B-6077-K141
surge absorber
(common) Complying with the standard (Note 4) A06B-6077-K142

The terms "PWM," " I/O Link," and "common" used in the Name column indicate what interface to be used.
PWM : The PWM interface is used.
I/O Link : The I/O Link interface is used.
Common : The FSSB interface, I/O Link interface, and PWM interface can be used.

- 133 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

WARNING
At the power input of the power magnetics cabinet, install a surge absorber between
the power lines and between each power line and a ground to protect the unit from a
voltage surge caused by lightning.
See Section 7.5 for details of the lightning surge absorber.

NOTE
1 When no separate regenerative resistor is used, a dummy connector for connecting
the overheat alarm (OH alarm) for separate regenerative resistors and a dummy
connector for connecting a resistance wire are required.
Specify the ordering drawing number A06B-6093-K314 when ordering dummy
connectors for connecting the OH alarm and resistance wire.
Specify the ordering drawing number A06B-6093-K315 when ordering a housing
and contact for connecting a separate regenerative resistor with a β series amplifier.
2 When multiple β series amplifiers are connected, and a wire with a diameter of 0.5
mm2 or more needs to be used, select this connector. The supply current of the
control power supply per β series amplifier is 0.6 A for the FSSB interface, 0.9 A for
the I/O Link interface, or 0.4 A for the PWM interface. So, select an appropriate wire
according to the number of β series amplifiers to be connected.
3 There are two methods of connecting the batteries for the absolute pulse coder.
Specify an appropriate connection method according to the use environment.
4 See Section 3.2, "DERATING", to choose whether to cool the β series amplifier by
natural air cooling or by forced air cooling.
For forced air cooling, a fan motor with a wind speed of 2 m/sec is required.
A desired cooling capability can be obtained by using a fan adapter.
For the attachment of a fan adapter, see Section 9.2, "PANEL CUT-OUT
DRAWING" for forced air cooling.
When using forced air cooling, design a power magnetics cabinet so that cooling air
from the fan motor does not leak. The fan motor may need to be maintained and
replaced, depending on the use environment. So, give a consideration to the
installation and structure of a fan motor so that maintenance and replacement work
can be performed easily.

- 134 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

Connection method 1

- 135 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

Connection method 2

- 136 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.6 CIRCUIT BREAKER, ELECTROMAGNETIC CONTACTOR,

AND AC LINE FILTER
Main power
supply AC line β series servo
Circuit MCC
200VAC filter amplifier
breaker
220VAC
230VAC
240VAC
50Hz/60Hz β series servo
amplifier

β series servo
amplifier

2.6.1 Circuit Breaker Rating

Select an appropriate circuit breaker based on Table 2.6.1. When

connecting multiple amplifiers to one circuit breaker, select a circuit
breaker according to the sum of the input currents of the individual
motors at continuous rated output based on Table 2.6.1.
Note that, during rapid motor acceleration, a current that is roughly
triple the continuous rating flows. Therefore, select a circuit breaker
that does not trip when a current that is triple the continuous rating
flows for 3 seconds.
When certification of the European standard (VDE0160) is to be
obtained, the capacity of a circuit breaker needs to be limited for
protection of cables such as power input cables.
When connecting multiple amplifiers to one circuit breaker, select a
circuit breaker so that the value obtained by multiplying the sum of
the input currents of the individual motors at continuous rated output
based on Table 2.6.1 by 0.6 does not exceed the rated current of the
circuit breaker.

WARNING
For servo amplifier protection, use a correct circuit
breaker.
SVU-4, SVU-20: Circuit breaker of 10 A or less
SVU-40, SVU-80: Circuit breaker of 20 A or less

Example selection:
EA33 Series manufactured by Fuji Electric Co., Ltd.

- 137 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

Table 2.6.1 Currents drawn by motors operating at continuous rated

output
Input current Input current
Motor model (three-phase input) (single-phase input)
(Arms) (Arms)
βM0.2/4000 0.2 0.4
βM0.3/4000 0.4 0.9
βM0.4/4000 0.6 1.1
βM0.5/4000 0.9 1.7
βM1/4000 1.8 3.5
β1/3000 1.3 2.6
β2/3000 2.2 4.3
β3/3000 2.2 4.3
β6/2000 4.0 7.8
α1/5000i 2.2 4.3
α2/5000i 3.3 6.5
α4/4000i 6.2 12.1
α8/3000i 7.1 13.8
α12/3000i 13.4 19.0 (*1)
α22/3000i 17.8 19.0 (*1)
αM2/5000i 3.3 10.4
αM3/5000i 4.5 8.6
αM8/4000i 11.1 19.0 (*1)
αM12/4000i 12.0 19.0 (*1)
αC4/3000i 4.5 8.6
αC8/2000i 5.3 8.6 (*1)
αC12/2000i 8.0 8.6 (*1)
αC22/2000i 13.4 19.0 (*1)
αC30/1500i 18.7 19.0 (*1)
(*1) Depends on the output limit applicable when single-phase input
is used.

Example)
Connecting two β6/2000 units operating on three-
phase power
Because one β6/2000 unit requires an input
current of 4.0 Arms:
(4.0+4.0) × 0.6 4.8 Arms
So, a 10A circuit breaker can be used.

- 138 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 2.CONFIGURATION

2.6.2 Electromagnetic Contactor Rating

Select an appropriate electromagnetic contactor based on Table 2.6.2.

When multiple amplifiers are to be connected to a single
electromagnetic contactor (MCC), select an MCC based on the
currents on Table 2.4.1.

Table 2.6.2 Recommendation example of electromagnetic contactor

Manufactured by Fuji Electric Co., Ltd. Rated current
SC-03 11Apeak
SC-4-1 18Apeak
SC-1N 26Apeak

2.6.3 AC Line Filter

When multiple amplifiers are connected to a single AC line filter,

select a line filter based on the sum of the currents on Table 2.6.3.
An AC line filter or an EMC noise filter must be used to suppress the
influence of high-frequency noise on the power supply unit.
The EMC noise filters of the LF series are available from Tokin
Corporation.

Table 2.6.3 AC line filter specifications

Heat
Continuous Continuous
AC line filter dissipati
rated current rated power
on
Type A:A81L-0001-0083#3C 24A 5.4kW or less 20W
Type B:A81L-0001-0101#C 44A 10.5kW or less 70W
Type C:A81L-0001-0102 100A 23.0kW or less 50W

- 139 -
2.CONFIGURATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

2.7 CONNECTOR

Specification : A06B-6093-K311
Connector
Part number Manufacturer Use Quantity Remarks
name
1-179958-4 (housing) For input power line 1
CX21 AMP Japan, Ltd. Crimp type
316041-2 (contact) (200 VAC input) 4

Specification : A06B-6093-K312
Connector
Part number Manufacturer Use Quantity Remarks
name
1-917807-2 (housing) 1
CX22 AMP Japan, Ltd. For motor power line Crimp type
316040-2 (contact) 4

Specification : A06B-6093-K313
Connector
Part number Manufacturer Use Quantity Remarks
name
1-917807-2 (housing) 1
CX22 AMP Japan, Ltd. For motor power line Crimp type
316041-2 (contact) 4

Specification : A06B-6093-K315
Connector
Part number Manufacturer Use Quantity Remarks
name
2-178288-3 (housing) For separate regenerative 1
CX20 AMP Japan, Ltd. discharge resistor (for OH Crimp type
1-175218-5 (contact) alarm) 2

2-917807-2 (housing) For separate regenerative 1

CX23 AMP Japan, Ltd. discharge resistor (for Crimp type
316041-2 (contact) resistor) 2

Specification : A06B-6093-K316
Connector
Part number Manufacturer Use Quantity Remarks
name
1-178288-3 (housing) 1
CX19A AMP Japan, Ltd. For control unit 24VDC (IN) Crimp type
1-175217-5 (contact) 2
1-178288-3 (housing) For control unit 24VDC 1
CX19B AMP Japan, Ltd. Crimp type
1-175217-5 (contact) (OUT) 2

Specification : A06B-6093-K317
Connector
Part number Manufacturer Use Quantity Remarks
name
1-178288-3 (housing) 1
CX19A AMP Japan, Ltd. For control unit 24VDC (IN) Crimp type
1-175218-5 (contact) 2
1-178288-3 (housing) For control unit 24VDC 1
CX19B AMP Japan, Ltd. Crimp type
1-175218-5 (contact) (OUT) 2

- 140 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 3.SPECIFICATIONS

3 SPECIFICATIONS

- 141 -
3.SPECIFICATIONS FANUC AC SERVO AMPLIFIER β series B-65232EN/03

3.1 SPECIFICATIONS

Table 3.1 (a) Specifications (common)

Item Specifications
Voltage: 200 VAC to 240 VAC
Three-phase input Allowable voltage fluctuation: +10%, -15% (Note)
power supply for motor Frequency: 50 Hz, 60 Hz
power Allowable frequency fluctuation: ±2 Hz
Voltage fluctuation during acceleration/deceleration: 7% or less
Voltage: 220 VAC to 240 VAC
Power
Single-phase power Allowable voltage fluctuation: +10%, -15% (Note)
supply
supply for motor power Frequency: 50 Hz, 60 Hz
(Note) Allowable frequency fluctuation: ±2 Hz
Voltage fluctuation during acceleration/deceleration: 7% or less
Single-phase input
power supply for control Voltage: 24 VDC Allowable voltage fluctuation: ±10%
power
Main circuit control system Sinusoidal PWM control based on transistor (IGBT) bridge
Converter: main circuit overload alarm
Converter: control power supply undervoltage alarm
Converter: DC link undervoltage alarm
Inverter: Abnormal current alarm
Alarm protection function
Converter: DC link undervoltage alarm
Converter: excessive deceleration power alarm
Converter: cooling fan stopped alarm
FSSB disconnection alarm

Table 3.1 (b) Specifications (individual)

Rated output current Nominal current limiting
Name Specification
(RMS value) (peak value)
FSSB interface A06B-6093-H119
SVU-4 0.9 Arms 4 Apeak
I/O Link interface A06B-6093-H159
FSSB interface A06B-6093-H111
SVU-12 I/O Link interface A06B-6093-H151 3.2 Arms 12 Apeak
PWM interface A06B-6093-H101
FSSB interface A06B-6093-H112
SVU-20 I/O Link interface A06B-6093-H152 5.9 Arms 20 Apeak
PWM interface A06B-6093-H102
FSSB interface A06B-6093-H113
SVU-40 I/O Link interface A06B-6093-H153 12 Arms 40 Apeak
PWM interface A06B-6093-H103
FSSB interface A06B-6093-H114
SVU-80 I/O Link interface A06B-6093-H154 18.9 Arms 80 Apeak
PWM interface A06B-6093-H104

NOTE
The allowable voltage fluctuation is a change observed for several minutes. It is not
a continuous change.
The rated output is guaranteed provided the rated input voltage is applied. If the
input voltage fluctuates, however, the rated output may not be obtained even if the
fluctuation falls within the allowable fluctuation range.

- 142 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 3.SPECIFICATIONS

3.2 DERATING

Motor current derating or output derating is required, depending on

the motor used.

3.2.1 For SVU-20

Output derating is required to drive β6/2000, α2/5000i, αM2/5000i,

αM3/5000i, αC4/3000i, αC8/2000i, and αC12/2000i with single-phase
input.

Motor
output 1000
power
(W)
700

40 55

Ambient temperature (°C)

Fig. 3.2.1 Single-phase input time

- 143 -
3.SPECIFICATIONS FANUC AC SERVO AMPLIFIER β series B-65232EN/03

3.2.2 For SVU-40 and SVU-80

Table 3.2.2(a) Three-phase input time
Motor specifications Specifications of β series amplifiers SVU-40 and SVU-80
Peak Rated Rated Peak
Natural air
Motor current current output current Forced air cooling
cooling
(Ap) (Arms) (kW) (Ap)
α4/4000i 7.7 1.4 A A
α8/3000i 8.4 1.6 Not usable. A
40 40
αM8/4000i 11.1 2.5 Not usable. A
αC22/2000i 12.3 3.0 Not usable. A
αM8/4000i 11.1 2.0 Not usable. A
αM12/4000i 13.4 2.7 Not usable. A
α12/3000i 80 18.1 3.0 80 Not usable. B (15Arms at 55°C)
α22/3000i 18.4 4.0 Not usable. B (15Arms at 55°C)
αC30/1500i 14.2 4.2 Not usable. A
A : Usable without circuit derating at an ambient temperature of up
to 55°C for the amplifier.
B : Requires the current derating shown in the following figure.
Motor output current derating curve

Motor current
(Arms) 19

15

45 55
Ambient temperature (°C)

- 144 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 3.SPECIFICATIONS

Table 3.2.2(b) Single-phase input time

Motor specifications Specifications of β series amplifiers SVU-40 and SVU-80
Peak Rated Rated Peak
Natural air
Motor current current output current Forced air cooling
cooling
(Ap) (Arms) (kW) (Ap)
α4/4000i 7.7 1.4 A A
α8/3000i 8.4 1.6 Not usable. A
40 40
C
αM8/4000i 11.1 2.5 Not usable.
(1.9kW at 55°C)
C
αM8/4000i 11.1 2.0 Not usable.
(1.9kW at 55°C)
80 80
C
αM12/4000i 13.4 2.7 Not usable.
(1.9kW at 55°C)
A : Usable without circuit derating at an ambient temperature of up
to 55°C for the amplifier.
C : Requires the current derating shown in the following figure.

The α12/3000i, α22/3000i, αC22/2000i, and αC30/1500i motors

cannot be used with the single phase.

Motor current
(Arms) 19

15

45 55
Ambient temperature (°C)
Derating curve of motor output current

Motor output
power 2.1
(kW)
1.9

(kW)

50 55
Ambient temperature (°C)
Derating curve of motor output

- 145 -
3.SPECIFICATIONS FANUC AC SERVO AMPLIFIER β series B-65232EN/03

3.3 PROTECTION AND ABNORMALITY DETECTION

FUNCTIONS

The servo amplifier is provided with the protection and abnormality

detection functions indicated below.
Determine any alarm status from the diagnostic data displayed by the
controller.
- Converter: main circuit overload
- Converter: control power supply undervoltage alarm
- Converter: DC link undervoltage alarm
- Inverter: Abnormal current alarm
- Converter: DC link undervoltage alarm
- Converter: excessive deceleration power alarm
- Converter: cooling fan stopped alarm
- FSSB disconnection alarm
When an alarm is issued, the LED "ALM" is turned on with the FSSB
interface and PWM interface, and a 7-segment indicator is turned on
with the I/O Link interface. For details of the 7-segment interface,
refer to "FANUC SERVO MOTOR β series I/O Link Option
Maintenance Manual".

FSSB interface PWM interface State Description

Light Light

ALM POWER POWER

Check the details of the alarm with diagnostic data
Alarm
LINK READY READY on the controller.

ALM

- 146 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 3.SPECIFICATIONS

When an FSSB disconnection alarm is issued, the faulty location can

be identified using the check method described below.
When an FSSB disconnection alarm is issued, the "LINK" and
"READY" LEDs are turned off, and the "ALM" LED is turned on.
Light

ALM POWER

LINK READY

Turned off

Amplifier 1 Amplifier 2 Amplifier 3 Amplifier 4 Amplifier 5 Amplifier 6

CNC
Power Mate

COP10B COP10B COP10B COP10B COP10B COP10B

COP10A

COP10A COP10A COP10A COP10A COP10A COP10A

Disconnection

When the optical cable connecting the third β amplifier with the
fourth β amplifier, the "ALM" LEDs on the third and subsequent
amplifiers are turned on, and the "LINK" LEDs and the "READY"
LEDs are turned off.

- 147 -
3.SPECIFICATIONS FANUC AC SERVO AMPLIFIER β series B-65232EN/03

3.4 NORMAL OPERATING MODE

In normal operating mode, the LEDs located on the front of the servo
amplifier light as indicated below.

Table 3.4 Normal Operating Mode

I/O Link interface
FSSB interface PWM interface State Description
LED display
Light Light

POWER Indicates that the control power

ALM POWER Amplifier
READY supply voltage (+24 VDC) is
NOT READY
LINK READY applied.
ALM

ALM POWER POWER Indicates that the motor has been

Amplifier activated, and that the servo
LINK READY READY
READY amplifier is ready to accept
ALM commands.

- 148 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

4 SEPARATED REGENERATIVE
DISCHARGE UNIT

- 149 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

4.1 FOR SVU-4, SVU-12, AND SVU-20

4.1.1 Cases Where a Separated Regenerative Discharge Unit Is Not

Required

When the amount of regenerative energy produced [J] never exceeds

the amounts indicated in Table 4.1, a separated regenerative discharge
unit is not required.
For an external connection to be made when a regenerative
discharge unit is not used, see Part V, "CONNECTION", of this
manual.
An incorrect connection can damage the amplifier. Care must be
taken.

Table 4.1 Maximum allowable regenerative energy for amplifiers

Name Maximum allowable regenerative energy
SVU-12 13 [J]
SVU-20 16 [J]

Calculating the amount of regenerative energy produced

- For horizontal operation
(a) When the SI unit system is used
−2
P = (5.48 × 10 −3 ⋅ ( Jm + JL) ⋅ Vm 2 − 5.23 × 10 ⋅ ta ⋅ Vm ⋅ TL ) [ J ] (Expression 1)
Jm: Motor rotor inertia [kg⋅m2]
JL: Load inertia converted to motor shaft inertia [kg⋅m2]
Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
TL: Machine tool friction torque (in terms of motor) [N⋅m]

(b) When the CGS unit system is used

−4 2 −3
P = (5.37 × 10 ⋅ ( Jm + JL) ⋅ Vm − 5.13 × 10 ⋅ ta ⋅ Vm ⋅ TL) [ J ] (Expression1)
Jm: Motor rotor inertia [kgf⋅cm⋅sec ] 2

JL: Load inertia converted to motor shaft inertia [kgf⋅cm⋅sec2]

Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
TL: Machine tool friction torque (in terms of motor) [kg⋅cm]

- 150 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

- For vertical operation

(a) When the SI unit system is used
Q = 1.047 × 10 −1 ⋅ Th ⋅ Vm ⋅ ta [ J ] (Expression 2)
Th: Upward supporting torque applied by the motor during
downward rapid traverse [N⋅m]
Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]

(b) When the CGS unit system is used

Q = 1.026 × 10 −2 ⋅ Th ⋅ Vm ⋅ ta [ J ] (Expression 2)
Th: Upward supporting torque applied by the motor during
downward rapid traverse [kg⋅cm]
Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]

If the operation is vertical, the regenerative energy per operation is a

sum of the values of Expressions 1 and 2.
R = P + Q [J] (Expression 3)

- 151 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

4.1.2 Cases Where a Separated Regenerative Discharge Unit Is

Required

When the amount of regenerative energy produced [J] exceeds the

amounts indicated in Table 4.1, the DC link overvoltage alarm is
issued. To prevent this, a separated regenerative discharge unit is
required.
For an external connection to be made when a regenerative
discharge unit is not used, see Part V, "CONNECTION", of this
manual.
An incorrect connection can damage the amplifier. Care must be
taken.

Selecting regenerative discharge unit

First, calculate the regenerative energy.

- Servo motor : For horizontal operation

Amount of regenerative discharge (power [W]) when one
acceleration/deceleration operation occurs in every F sec during rapid
traverse.
(a) When the SI unit system is used
1 −3 2 −2
w= × (5.48 × 10 ⋅ ( Jm + JL) ⋅ Vm − 5.23 × 10 ⋅ ta ⋅ Vm ⋅ TL) [W ] (Expression 4)
F
F : Frequency of acceleration/deceleration during rapid
traverse [sec/occurrence]
Unless otherwise specified, it is assumed that about one
acceleration/deceleration operation occurs in every 5 sec
during rapid traverse.
Jm: Motor rotor inertia [kg⋅m2]
JL: Load inertia converted to motor shaft inertia [kg⋅m2]
Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
TL: Machine tool friction torque (in terms of motor) [N⋅m]

(b) When the CGS unit system is used

1 −4 2 −3
w= × (5.37 × 10 ⋅ ( Jm + JL) ⋅ Vm − 5.13 × 10 ⋅ ta ⋅ Vm ⋅ TL) [W ] (Expression 4)
F
F : Frequency of acceleration/deceleration during rapid
traverse [sec/occurrence]
Unless otherwise specified, it is assumed that about one
acceleration/deceleration operation occurs in every 5 sec
during rapid traverse.
Jm: Motor rotor inertia [kgf⋅cm⋅sec2]
JL: Load inertia converted to motor shaft inertia [kgf⋅cm⋅sec2]
Vm: Motor speed during rapid traverse [min-1]
ta: Acceleration/deceleration duration during rapid traverse
[sec]
TL: Machine tool friction torque (in terms of motor) [kg⋅cm]

- 152 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

- For vertical operation

Amount of regenerative discharge (power [W]) when the duty cycle
of downward vertical operation during rapid traverse is D(%)
(a) When the SI unit system is used
−1 D
w = 1.047 × 10 ⋅ Th ⋅ Vm × [W ] (Expression 5)
100
Th: Upward supporting torque applied by the motor during
downward rapid traverse [N⋅m]
Vm: Motor speed during rapid traverse [min-1]
D : Duty cycle of downward vertical operation during rapid
traverse [%]
The maximum value of D is 50%, and D is usually less than
50%.

(b) When the CGS unit system is used

−2 D
w = 1.026 × 10 ⋅ Th ⋅ Vm × [W ] (Expression 5)
100
Th: Upward supporting torque applied by the motor during
downward rapid traverse [kg⋅cm]
Vm: Motor speed during rapid traverse [min-1]
D : Duty cycle of downward vertical operation during rapid
traverse [%]
The maximum value of D is 50%, and D is usually less than
50%.

If the operation is vertical, the regenerative energy per operation is a

sum of the values of Expressions 4 and 5.
R’ = P’ + Q’ [W] (Expression 6)
From Table 4.2, select a separated regenerative discharge unit having
a regenerative discharge rating greater than the value determined in
(1).

Table 4.2 Regenerative discharge ratings of separated regenerative discharge unit

Separated regenerative Regenerative discharge
Condition
discharge unit rating
A06B-6093-H401(30Ω) 20W
(Caution) Air flow = 0m/sec
100W
A06B-6093-H402(30Ω)

CAUTION
Use a regenerative resistance cable not longer
than 1 m. If a cable longer than 1 m is used, the
regenerative circuit in the amplifier can malfunction,
or the amplifier can be damaged.

NOTE
If a separated regenerative discharge unit is used
at a value exceeding the allowable limit, an
overheat can occur and activate the built-in
thermostat, resulting in an overheat alarm.

- 153 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

4.1.3 For SVU-40 and SVU-80

If the amount of regenerative discharge from a servo motor is so large

that it exceeds the regenerative discharge capacity of the regenerative
discharge resistor built into the servo amplifier, a separated
regenerative discharge unit needs to be used.
When the amount of motor regenerative discharge (R) calculated in
Subsection 4.1.2 exceeds the value indicated in Table 4.1.3(a)
"Regenerative discharge capacity of the regenerative discharge unit
built into a servo amplifier", use a separated regenerative discharge
unit.

Table 4.1.3(a) Regenerative discharge capacity of the regenerative

discharge unit built into a servo amplifier
Servo amplifier Capacity
A06B-6093-H103
A06B-6093-H113
A06B-6093-H153
70W
A06B-6093-H104
A06B-6093-H114
A06B-6093-H154

NOTE
The capacity is fixed at 70 W, regardless of
whether natural air cooling or forced air cooling is
used. The user should assume a severer use
condition to ensure that the amount of regenerative
discharge is less than 70 W.
If 70 W is exceeded, the long-term reliability can
degrade.

The separated regenerative discharge units indicated below are

available.
Specify a separated regenerative discharge unit to ensure that the
amount of regenerative discharge is less than the discharge capacity.

Table 4.1.3(b) Regenerative discharge capacity of a separated

regenerative discharge unit for a servo amplifier
Separated regenerative Wind speed Wind speed Wind speed
discharge unit 0 m/sec 2 m/sec 4 m/sec
A06B-6089-H500 R=200W R=400W R= 600W
With a built-in fan motor for
A06B-6089-H713 R= 800W
forced air cooling
With a built-in fan motor for
A06B-6089-H714 R=1200W
forced air cooling

- 154 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

Switch setting (for SVU-40, SVU-80)

With SVU-40 and SVU-80, four switches are provided on the front of
the servo amplifier. Be sure to set the switches to match the resistor
used.
If the switches are set incorrectly, the regenerative resistor can be
damaged.

From top to bottom, switch 1, switch 2, switch 3, and switch 4 are

installed in this order. Each switch is turned on when the lever is at
the left, and is turned off when the lever is at the right.
ON
3
41
2

(1) Setting of switch 1 and switch 2

The switches need to be set according to the regenerative
discharge resistor used.
Þ If the switches are not set correctly, the regenerative
overheat alarm is not detected correctly.
Switch 1 Switch 2 Regenerative discharge resistor
ON ON Built-in
ON OFF Separate : A06B-6089-H500
OFF OFF Separate : A06B-6089-H713, A06B-6089-H714

(2) Setting of switch 3 and switch 4

Switch 3 and switch 4 are not used. Set these switches off.

- 155 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

4.1.4 Notes on Regenerative Discharge Unit Installation

WARNING
1 A regenerative discharge resistor may be heated to
a temperature from 100°C to 200°C. Be careful not
to touch the regenerative discharge resistor.
2 If a regenerative resistor needs to be touched for a
purpose such as maintenance, turn off all the
power to the amplifier, wait 30 minutes or more,
and check that DC link charge indicator LED
(CAUTION CHARGE) is turned off and that the
regenerative resistor is sufficiently cooled.
3 Install a regenerative resistor sufficiently away from
a combustible material.

(1) Drawing numbers

Drawing number of Capacity
Resistance
regenerative Wind speed Remark
value
discharge unit 0m/sec 2m/sec 4m/sec
A06B-6093-H401 30Ω 20W - - For 12/20A
A06B-6093-H402 30Ω 100W - - For 12/20A
A06B-6089-H500 16Ω 200W 400W 600W For 40/80A
A06B-6089-H713 16Ω With cooling fan motor 800W For 40/80A
A06B-6089-H714 16Ω With cooling fan motor 1200W For 40/80A

(2) Installation condition

<1> Cautions on installation
A06B-6093-H401
Install a regenerative discharge unit in a completely closed cabinet.
A06B-6093-H402
Install the pin side in a completely closed cabinet, and install the resistor side (heat dissipation
A06B-6089-H500 portion) in an exhaust duct.
(a) Use the delivered packings.
A06B-6089-H713 (b) Ensure that the pin side and resistor side (heat dissipation portion) are not exposed to
coolant, oil mist, cuttings, and so forth.
A06B-6089-H714 (c) To introduce the open air for the resistor (heat dissipation portion), use an air filter at the
inlet. Ensure that the cable inlet and outlet, door, and so forth are sealed.
<2> Ambient Temperature
0 to 55 °C (operating)
-20 to 60 °C (storage and transportation)
<3> Humidity
Usually, 95% RH or lower (no condensation)
<4> Vibration
No more than 0.5G during operation
<5> Installation direction
Install a regenerative discharge unit correctly according to
the installation drawings that follow.

- 156 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

A06B-6093-H401
Upper
β SVU
A06B-6093-H101
Installation direction A06B-6093-H111
A06B-6093-H151

Regenerative resistor

Spacer (accessory)
Thick cable
Thin cable To connector CX11-2

To connector CX11-6

β SVU
A06B-6093-H102
A06B-6093-H112
A06B-6093-H152

Upper

Installation direction

Regenerative resistor

Spacer (accessory)

Thick cable
Thin cable To connector CX11-2
To connector CX11-6

WARNING
1 A regenerative discharge resistor may be heated to a temperature
from 100°C to 200°C. Be careful not to touch the regenerative
discharge resistor.
2 If a regenerative resistor needs to be touched for a purpose such as
maintenance, turn off all the power to the amplifier, wait 30 minutes
or more, and check that DC link charge indicator LED (CAUTION
CHARGE) is turned off and that the regenerative resistor is
sufficiently cooled.

- 157 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

A06B-6093-H402
Front view Side view A Side view B

Installation direction

Upper

* Spacer

Wall

β SVU-12, -20
connector

ABCD

A, D: To connector CX11-2
B, C: To connector CX11-6

WARNING
1 A regenerative discharge resistor may be heated to a temperature from 100°C to
200°C. Be careful not to touch the regenerative discharge resistor.
2 If a regenerative resistor needs to be touched for a purpose such as maintenance,
turn off all the power to the amplifier, wait 30 minutes or more, and check that DC
link charge indicator LED (CAUTION CHARGE) is turned off and that the
regenerative resistor is sufficiently cooled.
3 Install a regenerative resistor sufficiently away from a combustible material.
4 Provide a space of 10 mm or more between a regenerative resistor and the wall.

- 158 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

A06B-6089-H500
Panel cut-out

Mounting
direction

M4
screw

Terminal side

Resistor side

WARNING
1 A regenerative discharge resistor may be heated to a temperature from 100°C to
200°C. Be careful not to touch the regenerative discharge resistor.
2 If a regenerative resistor needs to be touched for a purpose such as maintenance,
turn off all the power to the amplifier, wait 30 minutes or more, and check that DC
link charge indicator LED (CAUTION CHARGE) is turned off and that the
regenerative resistor is sufficiently cooled.
3 Install a regenerative resistor sufficiently away from a combustible material.

NOTE
For oil and dust protection, use the delivered packings.

- 159 -
4.SEPARATED REGENERATIVE DISCHARGE UNIT FANUC AC SERVO AMPLIFIER β series B-65232EN/03

A06B-6089-H713 to -H714

- 160 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 4.SEPARATED REGENERATIVE DISCHARGE UNIT

A06B-6089-H713 to -H714
Panel cut-out

WARNING
1 A regenerative discharge resistor may be heated to
a temperature from 100°C to 200°C. Be careful not
to touch the regenerative discharge resistor.
2 If a regenerative resistor needs to be touched for a
purpose such as maintenance, turn off all the
power to the amplifier, wait 30 minutes or more,
and check that DC link charge indicator LED
(CAUTION CHARGE) is turned off and that the
regenerative resistor is sufficiently cooled.
3 Install a regenerative resistor sufficiently away from
a combustible material.

NOTE
For oil and dust protection, use the delivered
packings.

- 161 -
5.POWER SUPPLY FANUC AC SERVO AMPLIFIER β series B-65232EN/03

5 POWER SUPPLY

- 162 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 5.POWER SUPPLY

5.1 INPUT POWER SUPPLY

5.1.1 Three-phase Input Power Supply for Motor Power

- Nominal rated voltage: 200 to 240 VAC

- Allowable voltage fluctuation: -15% to +10%
- Frequency: 50/60 Hz
- Allowable frequency fluctuation: ±2 Hz
- Power supply impedance: Voltage fluctuation cased by load (at
maximum output) not to exceed 7%
- Power supply unbalance: Within ±5% of the rated voltage

NOTE
The allowable voltage fluctuation is a change
observed for several minutes. It is not a continuous
change.

5.1.2 Single-phase Input Power Supply for Motor Power

In European countries, power sources are 380 to 415 VAC and

neutral-grounded. To use the β series amplifiers in these European
countries, it is necessary to install a power transformer at the input or
supply single-phase power.
To use the motors with single-phase power, observe the following:

(1) Power supply specification

- Nominal voltage rating: 220 to 240 VAC
- Allowable voltage fluctuation: -15% to +10%
- Frequency: 50/60 Hz
- Allowable frequency fluctuation: ±2 Hz
- Voltage fluctuation at acceleration/deceleration: 7% or less

NOTE
The allowable voltage fluctuation is a change
observed for several minutes. It is not a continuous
change.

5.1.3 Single-phase Input for Control Power

- Nominal rated voltage: 24VDC

- Allowable voltage fluctuation: ±10% (including momentary
variations)
- Power supply ratings
Power supply rating per amplifier
FSSB interface 0.6A
I/O Link interface 0.9A
PWM interface 0.4A

- 163 -
5.POWER SUPPLY FANUC AC SERVO AMPLIFIER β series B-65232EN/03

5.2 POWER SUPPLY RATINGS

5.2.1 Three-phase Input Power Supply Ratings for Motor Power

(1) The power supply rating necessary when using multiple servo
motors can be determined by summing the rating of the power
supplies required by the individual motors.

(2) The power supply ratings listed in Table 5.2.1 are sufficient as
continuous ratings. Note, however, that servo motor acceleration
causes a current that is roughly triple the continuous rating to
flow momentarily.

(3) When the power is turned on, a surge current of about 37 A

(when 264 VAC is applied) flows the 20 msec.

Table 5.2.1 Three-phase power supply ratings

Power supply rating per motor Power supply rating per motor
Motor model (three-phase power input) (single-phase power input)
(kVA) (kVA)
βM0.2/4000 0.08 0.10
βM0.3/4000 0.15 0.19
β1/3000 0.46 0.57
β2/3000 0.77 0.95
βM0.4/4000 0.20 0.25
βM0.5/4000 0.31 0.38
βM1/4000 0.62 0.76
β3/3000 0.77 0.95
β6/2000 1.4 1.7
α1/5000i 0.77 0.95
α2/5000i 1.2 1.4
α4/4000i 2.2 2.7
α8/3000i 2.5 3.0
α12/3000i 4.6 4.2 (*1)
α22/3000i 6.2 4.2 (*1)
αM2/5000i 1.2 2.3
αM3/5000i 1.5 1.9
αM8/4000i 3.9 4.2 (*1)
αM12/4000i 4.2 4.2 (*1)
αC4/3000i 1.5 1.9
αC8/2000i 1.9 1.9
αC12/2000i 2.8 1.9
αC22/2000i 4.6 4.2 (*1)
αC30/1500i 6.5 4.2 (*1)
(*1) Depends on the output limit applicable when single-phase input
is used.

- 164 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 5.POWER SUPPLY

5.3 POWER TRANSFORMER FOR EXPORTS

Use power transformer for an export when this servo amplifier unit is
used at a site where the line voltage is other than 200 to 240 VAC.

5.3.1 Specification
Table 5.3.1 Specification of power transformer
Ordering drawing number A80L-0022-0005 A80L-0024-0006 A80L-0026-0003 A80L-0028-0001
FANUC drawing number A80L-0022-0005 A80L-0024-0006 A80L-0026-0003 A80L-0028-0001
Rated capacity 2.2kVA 3.5kVA 5kVA 7.5kVA
200/220/230/240VAC (∆ connection)
Rated primary voltage 380/415/460/480/550VAC (Y connection)
±15%, 50/60Hz±2Hz; 3φ
Rated secondary voltage 210VAC
Rated secondary current 6.1A 9.6A 13.7A 20.6A
Voltage regulation at the secondary 2%
Voltage deviation at the secondary ±3%
Connection ∆-∆ connection or Y-∆ connection
Insulation Class B (maximum allowable temperature : 130°C)
Ambient temperature -20 to 55°C
Allowable temperature rise 135deg
Relative humidity Max. 95%RH
Type Dry type, natural air cooling type
Dielectric withstand voltage 2300VAC, for 1 minute
Weight Max. 21kg Max. 27kg Max.36kg Max. 42kg
Outline drawing Fig. 8.1.3

Connection diagram

- 165 -
5.POWER SUPPLY FANUC AC SERVO AMPLIFIER β series B-65232EN/03

5.3.2 How to Select a Transformer

Select a transformer according to the load condition and the model of

the motor for which the transformer is used. Each transformer has
secondary winding taps for three amplifiers so that it can be
connected to two or three amplifiers.
For a machine with typical operating conditions, select a transformer
according to the following guideline.

(Sum of three-phase power requirements of all models) × 0.6 ≤ transformer rating

Table 5.2.1 Table 5.3.1

CAUTION
When two or more motors are used, the
transformer rating obtained using the above
expression may be less than the actual power
requirements of any one of those motors. Should
this occur, use the motors’ maximum power
requirements as the transformer rating.
(Example)
The power requirements of the α22/3000i and
α2/5000i are indicated in Table 5.2.1, as shown
below :
α22/3000i : 6.2 kVA
α2/5000i : 1.2 kVA
Using the expression given above, the transformer
rating is calculated as follows :
(6.2 + 1.2) × 0.6 = 4.4 kVA
The power requirement of the α22/3000i is 6.2
kVA, this being greater than the calculated
transformer rating of 4.4 kVA. So, the transformer
rating should be 6.2 kVA.

- 166 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 6.HEAT DISSIPATION

6 HEAT DISSIPATION
Heat dissipation of β series amplifier is as follows :

Table 6.1 Total heat dissipation of each servo amplifier β series

Total amount Residual amount of heat in the
of heat cabinet (W)
Ordering number Interface
dissipation Without forced air With forced air
(W) cooling cooling
A06B-6093-H119 SVU-4 (FSSB interface) 11 11 -
A06B-6093-H159 SVU-4 (I/O Link interface) 12 12 -
A06B-6093-H111 SVU-12 (FSSB interface) 19 19 -
A06B-6093-H151 SVU-12 (I/O Link interface) 20 20 -
A06B-6093-H101 SVU-12 (PWM interface) 18 18 -
A06B-6093-H112 SVU-20 (FSSB interface) 34 34 -
A06B-6093-H152 SVU-20 (I/O Link interface) 35 35 -
A06B-6093-H102 SVU-20 (PWM interface) 33 33 -
A06B-6093-H113 SVU-40 (FSSB interface) 53 20 15
A06B-6093-H153 SVU-40 (I/O Link interface) 53 20 15
A06B-6093-H103 SVU-40 (PWM interface) 53 20 15
A06B-6093-H114 SVU-80 (FSSB interface) 78 27 17
A06B-6093-H154 SVU-80 (I/O Link interface) 78 27 17
A06B-6093-H104 SVU-80 (PWM interface) 78 27 17

- 167 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

7 INSTALLATION CONDITIONS AND

NOTES

- 168 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

7.1 ENVIRONMENTAL CONDITIONS

Install a β setting servo amplifier in a completely closed cabinet so

that the environment conditions indicated below can be satisfied.

(1) Ambient Temperature

Ambient temperature
0 to 55°C (operating)
-20 to 60°C (storage and transportation)
Ambient temperature of the accommodation cabinet 0 to 45°C
(2) Humidity
Usually, 95% RH or lower (no condensation)
(3) Vibration
No more than 0.5G during operation
(4) Atmosphere
Ensure that the electronic circuits are not exposed to corrosive
and conductive mist and waterdrops. (Note)
(5) Notes on installation
When installing an amplifier, consider the following:
(a) Ensure that the heat sink is not exposed to coolant, oil mist,
cuttings, and so forth. Otherwise, the cooling efficiency can
degrade, resulting in a failure to satisfy the characteristics
of the amplifier. Moreover, the life of semiconductors can
be adversely affected.
To introduce the open air for the heat sink, use an air filter
at the inlet.
Ensure that the cable inlet and outlet, door, and so forth are
sealed.

NOTE
The electronic circuits must be installed in an
environment of contamination level 2 defined in
IEC60664-1.
In order to satisfy contamination level 2 in a severe
environment for using machine tools, the servo
amplifier β series must be installed in a cabinet that
satisfy IP54.

(b) Ensure that dust, coolant, and so forth do not penetrate

through the exhaust vent. Moreover, ensure that the flow of
cooling wind is not interrupted.
(c) Ensure that the servo amplifier β series can be inspected,
removed, and reinstalled easily in maintenance.

- 169 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

7.2 SELECTING A GROUND FAULT INTERRUPTER

To protect against electric shocks, be sure to install a ground fault

interrupter at the input section of the machine. The β series servo
amplifier drives a motor by means of the transistor-based PWM
inverter method, in which a high-frequency leakage current flows to
ground through the stray capacitance of the motor widings, power
cable and amplifier.
The ground fault interrupter or leakage-protection relay, installed on
the power supply side, can malfunction if such a leakage current
should flow. So, select an inverter-compatible ground fault interrupter
to protect against the occurrence of this malfunction. For the leakage
current of each motor, use the values indicated in the table below as a
guideline.

Motor model Commercial frequency component (mA)

βM0.2 to βM1
α1i to α8i
1.8
αM2i to αM8i
αC4i to αC8i
α12i to α22i
αM12 i 2.0
αC12i to αC22i
αC30i 2.5

- 170 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

7.3 NOISE PROTECTION

7.3.1 Separation of Signal Lines

If a power cable and signal cable run close to each other, noise can be
induced. So, ensure that a power cable is separated from a signal
cable. When a power cable and signal line cannot be separated from
each other for a reason, minimize the distance by which the two
cables run in parallel. When conduits are used, run a power cable
through one conduit, and run a signal cable through another conduit.

Cable type
Group Signal Action
Amplifier input power line Separate these cables from those
Motor power line of group B by bundling them
A
Magnetic contactor drive coil separately (Note 1) or by means of
(Note 3) electromagnetic shielding (Note 2).
Cable connecting the control Separate these cables from those
unit and servo amplifier of group A by bundling them
Sensor cable separately (Note 1) or by means of
B
electromagnetic shielding(Note 2).
Position coder cable In addition, shielding must be
provided.

NOTE
1 The bundle of group A cables must be separated
from the bundle of group B cables by at least 10
cm.
2 Electromagnetic shielding involves shielding
groups from each other by means of a grounded
metal (steel) plate.
3 Attach a noise suppressor such as a spark killer to
the magnetic contactor drive coil.

- 171 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

Cabinet

Spindle Servo Control unit

amplifier amplifier
Cable of
group B

Duct
To operator's
panel, motor,
etc.
Cable of group A Section of duct

Group A Group B

Shielding plate

- 172 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

7.3.2 Grounding

A CNC machine tool has three separate ground systems:

(1) Signal ground (SG) system
The signal ground (SG) system provides the reference potential
(0V) for the electrical signal system.
(2) Frame ground (FG) system
The frame ground (FG) system is provided to ensure safety and
to shield external and internal noise. For example, the equipment
frames, unit cases, panels, and interface cables connecting
devices are all shielded.
(3) System ground system
The system ground system is designed to connect each unit and
the inter-unit frame ground system to ground.
Signal Ground system
Flame Ground system
Power Servo CNC System Ground system
magnetics amplifier
unit
Operator’s panel
Main unit

Power magnetics unit

Distribution board

WARNING
[Warning on ground system wiring]
1 The ground resistance of the system ground must
not exceed 100 Ω (class-3 ground).
2 System ground connection cables must have a
sufficiently large cross-sectional area to enable
them to safely carry the current that will arise in the
event of a mishap such as a short-circuit. (In
general, a cross-sectional area no less than that of
the AC power line must be provided.)
3 The system ground connection cable shall be
integrated with the AC power line, such that power
cannot be supplied if the ground wire is
disconnected.

- 173 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

7.3.3 Noise Suppressor

The AC/DC solenoid and relay are used in the power magnetics
cabinet.
A high pulse voltage is caused by coil inductance when these devices
are turned on or off.
This pulse voltage induced through the cable causes the electronic
circuits to be disturbed. In general, to reduce this pulse voltage, a
spark killer is used in AC circuits, while a diode is used in DC
circuits.

Spark killer
- Use a spark killer consisting of a resistor and capacitor in series.
This type of spark killer is called a CR spark killer. (Use it under
AC)
(A varistor is useful in clamping the peak voltage of the pulse
voltage, but cannot suppress the sudden rise of the pulse voltage.
FANUC therefore recommends a CR spark killer.)

- The reference capacitance and resistance of the spark killer shall

conform to the following based on the current (I(A)) and DC
resistance of the stationary coil:

Resistance (R) : Equivalent DC resistance of the coil

Capacitance (C) : I2/10 to I2/20 (µF)
I : Current at stationary state of the coil (A)

Equivalent circuit of
the spark killer

Spark killer
AC relay

Motor
Mount the noise
eliminator near a motor
Spark killer
or a relay coil.

CAUTION
Use a CR-type noise eliminator. Varistor-type noise
eliminators clamp the peak pulse voltage but
cannot suppress a sharp rising edge.

Diode
Diode (used for direct-current circuits)
Diode

DC relay
Use a diode which can withstand a voltage
up to two times the applied voltage and a
current up to two times the applied current.

- 174 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

7.3.4 Cable Clamp and Shield Processing

- Shield terminal processing

Process the terminal of the shield cover of a signal line
according to Chapter 10, "DETAILS OF CABLE
CONNECTION".
- Shield clamping
The amplifier cables that require shielding should be clamped by
the method shown below. This cable clamp treatment is for both
cable support and proper grounding of the shield. To insure
stable CNC system operation, follow this cable clamp method.
Partially peel out the sheath and expose the shield. Push and
clamp by the plate metal fittings for clamp at the part.
- Installation of a ground plate
The user is to prepare a ground plate and install it according to
Fig. 5.3.2(b) to (e).

Ground plate

Cable
Metal
fittings

Fig.7.3.4(a) Cable clamp (1)

- 175 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

Machine side
installation
board
Control unit

Ground
plate

Metal fittings for

clamp

Shield cover
Fig.7.3.4(b) Cable clamp (2)

Prepare ground plate like the following figure.

Ground terminal
(grounded)

Hole for securing metal fitting clamp

Mount screw hole

Fig.7.3.4(c) Ground plate

For the ground plate, use a metal plate of 2 mm or thicker, which

surface is plated with nickel.

- 176 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

Ground plate

Fig.7.3.4(d) Ground plate holes

(Reference) Outer drawings of metal fittings for clamp.

Max. 55mm

Fig.7.3.4(e) Outer drawings of metal fittings for clamp

Ordering specification for metal fittings for clamp

A02B-0214-K001 (2 pieces)

- 177 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

7.4 INSTALLING LIGHTNING SURGE ABSORBERS

At the power input of the power magnetics cabinet, install a surge

absorber between the power lines and between each power line and a
ground to protect the unit from a voltage surge caused by lightning.
How to install the surge absorber is shown below.

(1) Surge absorber for single-phase input

Circuit breaker for the
power magnetics cabinet Circuit breaker MCC AC line filter βseries servo amplifier

L1

L2

Lightning surge
Input absorber (1)
220 to 240VAC

βseries servo amplifier

L1

Circuit protector L2
5A

Lightning surge
absorber (2)

- 178 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 7.INSTALLATION CONDITIONS AND NOTES

(2) Surge absorber for three-phase input

To another machine
(such as α amplifier)

Circuit breaker for the

power magnetics cabinet Circuit breaker MCC AC line filter βseries servo amplifier

L1

L2

L3

Lightning surge
Input absorber (1)
200 to 240VAC

βseries servo amplifier

L1

Circuit protector L2
5A
L3

Lightning surge
absorber (2)

- 179 -
7.INSTALLATION CONDITIONS AND NOTES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

WARNING
1 Make the wires shown with thick line in the above
diagram as short as possible in order to increase
the effect of the lightning surge absorber.
2
Wire Cross section : At least 2mm
Length : Keep the total wire length (a+b) to
within 2m,where a = length of wire
used to connect lightning surge
absorber (1) b = length of wire used
to connect lightning surge absorber
(2)
2 When performing a dielectric strength test by
applying an overvoltage (such as 1000 or 1500
VAC) to a power line, remove lightning surge
absorber (2) so that it will not operate.
3 The circuit protector (5A) is intended to protect the
lines if a lightning surge absorber is damaged due
to a surge that is higher than the maximum
allowable voltage of the surge absorber.
4 Usually, no current flows through the lightning
surge absorbers. So the circuit protector (5A) may
be used also for other sections (such as power
supply module control power and spindle motor fan
power).

The following table lists commercially available lightning surge

absorbers.

Table 7.5.1(a) Lightning surge absorbers (not complying with the relevant standards)
Manufacturer's Maximum Maximum
Lightning Maximum allowable
specification Clamp voltage allowable surge allowable surge
surge circuit voltage
Okaya Electric [V]±10% current voltage
absorber [Vrms]
Industries 8/20µsec [A] 1.2/50µsec [V]
<1> R⋅A⋅V-781BYZ-2 783 1000 12000 300
<2> R⋅A⋅V-781BXZ-2A 783 1000 12000 300

Table 7.5(b) Lightning surge absorbers (complying with the relevant standards)
Manufacturer's Maximum Maximum
Lightning Maximum allowable
specification Clamp voltage allowable surge allowable surge
surge circuit voltage
Okaya Electric [V]±10% current voltage
absorber [Vrms]
Industries 8/20µsec [A] 1.2/50µsec [V]
<1> R⋅A⋅V-781BYZ-2 783 1000 12000 300
<2> R⋅A⋅V-781BXZ-4 783 1000 12000 300

- 180 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

8 CAUTIONS FOR SAFETY STANDARDS

RELATED TO AMPLIFIER
INSTALLATION

- 181 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.1 OVERVIEW

The β series servo amplifiers are designed to the following European

safety standard.
DIN VDE 0160 : 1988/A1 : 1989
(Electronics devices to be used in power equipment and their
installation in it)

This chapter supplements conditions for installation of the β series

servo amplifiers, focusing on safety standard-related topics. If you
want to acquire a CE mark for your power magnetics cabinet based on
the EC machine commands (based on 89/392/EEC), be sure to satisfy
this requirement in designing the power magnetics cabinet.

Remark
To acquire a CE mark for equipment, it is necessary
to make the equipment comply with the related EN
standard, EN60204-1 (general requirements for
electric equipment for industrial machines).

If there is an EN standard (or IEC standard if there is no EN standard)

that applies to machine components, the components used in your
machine must conform to the standard.
Because there is no EN standard (IEC standard) for amplifiers at
present, FANUC is using amplifiers that comply with the VDE
standard according to the result of investigation made by TÜV
Rheinland, which is a qualified certifying agency.

Therefore, the β series servo amplifiers satisfy the requirements to

acquire a CE mark. So you can use them without anxiety.

- 182 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

8.2 STANDARD CATEGORIES RELATED TO INSULATION

DESIGN

(1) Insulation between circuits and protective grounding

The amplifiers are designed to the DIN VDE 0160 standard, so
they conform to Part 1 of DIN VDE 0110 and related standards.
- The primary side (power source and main circuit side) is
separated from the secondary side (control circuit side) for
safety with reinforced insulation.
- The circuits are isolated from the protective grounding with
fundamental insulation.
The power supply main circuit and heat sinks are isolated from
one another with fundamental insulation. So, the grounding
terminal of a heat sink should be connected to the protective
grounding line as shown in Section 8.7.

(2) Installation category (overvoltage category)

DIN VDE 0110 (electric device insulation harmony) classifies
power supply equipment by the amplitude of an impulse voltage
contained in the power supply for the amplifier in reference to a
ground potential. The β series servo amplifiers are classified in
installation category (overvoltage category) II.
This category requires that the rated impulse dielectric strength
(measured in reference to a ground potential) in a power supply
connected to the amplifiers be not higher than 2.5 kV. Any
impulse voltage higher than 2.5 kV in reference to a ground
potential must be eliminated from the power supply.
Generally, an isolation transformer at the input section of the
power supply of a machine would make the machine satisfy that
requirement. If the power supply does not use an isolation
transformer, a lightning surge absorber should be installed
between the power and ground lines to suppress an impulse
voltage higher than 2.5 kV in reference to a ground potential.

(3) Installation environment contamination level and power

magnetics cabinet protection grade
EN60204-1 (Chapter 13/Section 13.3) states that machines to be
installed in an ordinary factory environment satisfy protection
grade IP54 or higher against dust debris, cutting fluid, and
cutting chips. The β series servo amplifiers do not satisfy IP54
unless an additional measure is taken. So they should be
installed within a power magnetics cabinet that satisfies IP54.
The IP grade to be satisfied varies with the environment
(atmosphere) in which the machine is installed. So, it is
necessary to select the protection grade for the power magnetics
cabinet according to the environment in which it is installed.
The β series amplifiers are designed on the assumption that they
are installed in an environment with a contamination level of 2.
So, the contamination level for the power magnetics cabinet
must be 2 or below.
- 183 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.3 PROTECTION AGAINST SHOCK HAZARDS

(1) Preventing direct contact with live parts

The β series servo amplifiers, after installed, satisfy a protection
grade of IP1X (hand protection), which prevents unconscious or
inadvertent contact.
The β series servo amplifiers shall be installed within a power
magnetics cabinet. When they are powered, the power magnetics
cabinet shall be locked according to EN60204-1 so that any
person other than specialist service personnel (including those
sufficiently trained in avoiding shock hazards and qualified for
maintenance) cannot open it.
Should if a machine operator must open the power magnetics
cabinet and act on it, the operator shall be sufficiently trained for
safety beforehand, or a provision, such as a protection cover, to
keep the operator from touching the amplifiers shall be installed
in advance.

(2) Confirming electrolytic capacitor discharge

The β series amplifiers contain electrolytic capacitors with a
high capacitance in their smoothing circuits. These capacitors
remain charged for a while after the power input is shut off. If
you need to touch an amplifier, for example, for maintenance
purposes, wait for at least two minutes after the power is
switched off, or confirm safety by measuring the remaining
voltage in the DC link section and making sure that the red LED
to indicate "charge" is off.
DC voltages higher than 60V are assumed to be dangerous,
according to the relevant standards.

(3) Current leakage to a protective grounding wire

Servo motors are controlled by changing the average amplitude
and frequency of a voltage applied to their armature (winding)
using pulse width modulation.
A chopper voltage with a carrier frequency of several kHz is
applied to the motor power lines for pulse width modulation.
The motor current partly leaks to the protective grounding wire
of the motor power cord and a ground through stray capacitances
mainly between the motor armature winding and casing and
between the motor power line and a protective ground. Part of
the leakage current flows through the protective grounding wire
of the machine. This leakage current is about 0.4 to 0.5mA per
motor, measured at the commercial frequency (50/60Hz). It is
increased to 2.0mA when measured with an EN60950 compliant
measurement circuit, because the measurement circuit has a
relatively high sensitivity to higher frequency components.
If the machine is not grounded to a substantial earth ground, you
may get shocked when touching the machine. To avoid shock
hazards:

- 184 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

- Use wire whose cross section is 10mm2 or larger for

protective grounding.
- Install a ground-fault circuit interrupter to shut off the
power instantly on a ground fault.
- Install an additional protective grounding terminal to the
cabinet for duplicated protective grounding connection.
The ground-fault circuit interrupter used for the machine should
be an electromagnetic type with a low sensitivity to high
frequency components or an electronics type usable together
with an inverter, so that a malfunction will not occur.

- 185 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.4 PROTECTIVE GROUNDING

The β series servo amplifiers have more than one protective

grounding terminal (marked according to 417-IEC-5019). These
terminals are used to prevent shock hazards should a dielectric
breakdown occur, and to prevent a malfunction due to noise.
All protective grounding terminals shall be connected to the
protective grounding connection terminal (PE) in the power magnetics
cabinet.
The protective grounding connections you installed should be
checked according to the indicated connection instruction (shown in
Section 8.7). Moreover, it is necessary to make sure that the cross
section of the protective grounding wires is larger than that of the
power wire.
Do not attach more than one wire to a single protective grounding
terminal. So prepare protective grounding terminals for the number of
protective grounding wires to be attached.

- 186 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

8.5 CAUTIONS FOR CONFIGURING AN EMERGENCY STOP

CIRCUIT

The power shut-off method used in the β series servo amplifiers is

based on an IGBT (transistor) rather than an electromechanical device.
The emergency stop circuit must be so configured that operating the
emergency stop switch can turn off directly a line connector installed
on the power input line of the servo amplifiers.

- 187 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.6 SUPPRESSING ELECTROMAGNETIC INTERFERENCE

The β series amplifiers conform to EN55011 group 1/class A for

interference noise due to radiation or conduction.
To make a machine using the β series amplifiers conform to the EMC
command, take necessary measures according to the guideline
published by FANUC (document No.: A-72937E).

- 188 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

8.7 PROTECTIVE GROUND WIRE CONNECTION

8.7.1 SVU-4/12/20 (PWM Interface)

CAUTION
The connection below also applies to the FSSB
interface.

Servo unit (front view) Servo unit (side view) Air outflow

Air inflow
Motor power line wire size ≤ S ≤ 1.25 mm 2

where S is the wire size

To another grounding
terminal board
Distribution panel
within
the cabinet

Grounding terminal board Grounding terminal board

Connected to the cabinet frame

External distribution panel

Grounding in class 3 or higher

- 189 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.7.2 SVU-4/12/20 (I/O Link Interface)

Servo unit (front view) Servo unit (side view) Air outflow

Faston terminal Air inflow

Note

To another grounding
terminal board
Distribution panel
within
the cabinet

Grounding terminal board Grounding terminal board

Connected to the cabinet frame

External distribution
panel

Grounding in class 3 or higher

CAUTION
Ground the servo unit, using Faston terminals
(A65L-0001-0148/2) in the servo unit and 2mm2 or
larger twisted wires 100 to 300 mm long.
Otherwise, the servo unit becomes less immune to
noise.
Be sure to connect the frame ground terminal of the
servo unit to a grounding terminal in the cabinet.

- 190 -
B-65232EN/03 FANUC AC SERVO AMPLIFIER β series 8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION

8.7.3 SVU-40/80 (FSSB Interface)

CAUTION
The connection below also applies to the PWM
interface.

CAUTION
A shield cable from the outside of the power
magnetics cabinet must be connected using a
grounding clamp to the ground plate located very
close to the inlet of the cabinet. The purpose of this
processing is to prevent inter-cabinet noise from
being radiated to the outside.

- 191 -
8.CAUTIONS FOR SAFETY STANDARDS RELATED TO AMPLIFIER INSTALLATION FANUC AC SERVO AMPLIFIER β series B-65232EN/03

8.7.4 SVU-40/80 (I/O Link Interface)

CAUTION
1 A shield cable from the outside of the power
magnetics cabinet must be connected using a
grounding clamp to the ground plate located very
close to the inlet of the cabinet. The purpose of this
processing is to prevent inter-cabinet noise from
being radiated to the outside.
2 Ground the servo unit, using Faston terminals
(A65L-0001-0148/2) in the servo unit and 2mm2 or
larger twisted wires 100 to 300 mm long.
Otherwise, the servo unit becomes less immune to
noise.
Be sure to connect the frame ground terminal of the
servo unit to a grounding terminal in the cabinet.
- 192 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9 OUTLINE DRAWINGS AND

MAINTENANCE CLEARANCES

- 193 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

9.1 OUTLINE DRAWINGS AND PANEL CUT-OUT DRAWINGS

9.1.1 Servo Amplifier Unit SVU-4,SVU-12,SVU-20 (FSSB Interface)

SVU-4 and SVU-12

Outline drawing Panel cut-out

Battery case

Weight : 1.1 kg

SVU-20
Outline drawing Panel cut-out

Battery case

Weight : 1.2 kg

NOTE
1 The outside dimensions of the FSSB interface, I/O
Link interface, and PWM interface are the same.
Shown above are the FSSB interface versions.
2 The battery case is required only when an absolute
pulse coder is used.

- 194 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9.1.2 Servo Amplifier Unit SVU-40,SVU-80 (FSSB Interface)

Weight : 3.9kg (applicable to all interfaces)

NOTE
The outside dimensions of the FSSB interface, I/O
Link interface, and PWM interface are the same.
Shown above are the FSSB interface versions.

- 195 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

9.1.3 AC Line Filter

A81L-0001-0083#3C

Weight : 1.1kg

- 196 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

A81L-0001-0101#C

Weight : 3kg

- 197 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

A81L-0001-0102

Weight : 3kg

- 198 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9.1.4 Power Transformer for Export

Specification A80L-0022-0005 A80L-0024-0006 A80L-0026-0003 A80L-0028-0001

Type (name) SAE SBE SCE SDE
Weight 21 kg 27 kg 36 kg 42 kg
hl* (height of trans) Max. 217mm Max. 217mm Max. 247mm Max. 247mm

- 199 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

9.1.5 Separated Regenerative Discharge Unit

A06B-6093-H401

Weight : 0.07 kg

A06B-6093-H402

Weight : 0.5 kg

- 200 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

A06B-6089-H500

- 201 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

A06B-6089-H713 to H714
(CAUTION: HIGH TEMPERATURE)

Installation direction

Label

Packing Packing

Specification number Weight

- 202 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9.1.6 Battery Case

3-M3 (plus terminal)

3-M3 (minus terminal) Mounting holes for 4-M4
Minus terminal indication 3-M3 (plus terminal)

- 203 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

9.2 Panel Cut-out Drawings

9.2.1 SVU40, SVU-80

The descriptions of this subsection apply to all of the FSSB interface,

I/O Link interface, and PWM interface.

Natural air cooling type Forced air cooling type

When two units of When three units of forced air cooling type
natural air cooling type are installed in parallel
are installed in parallel (The fan adapter (A06B-6078-K002) is used.)

NOTE
1 The width of the module (A06B-6078-K002) is 100mm.
If two modules are used, the distance between modules
is 100mm or more.
2 Attach packings (acrylonitrile-butadiene rubber, or soft
NBR) to prevent the ingress of oil and dust.
3 Reinforce the right and left and of each panel cut-out in
the power magnetics cabinet, for example with L-angle
steel, to ensure reliable contact with the amplifier
modules.
4 When installing a battery (by connection method 2),
provide a space of 40 mm horizontally as a maintenance
area for battery replacement. See Section 9.3.

- 204 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9.2.2 Separated Regenerative Discharge Unit

A06B-6089-H500

CAUTION
Attach packings (acrylonitrile-butadiene rubber, or
soft NBR) to prevent the ingress of oil and dust.

- 205 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

A06B-6089-H713 to H714

Panel cut-out

Packing
(attachment)
Panel cut-out

CAUTION
Attach packings (acrylonitrile-butadiene rubber, or
soft NBR) to prevent the ingress of oil and dust.

- 206 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

9.3 MAINTENANCE AREA

SVU-4, SVU-12, SVU-20

CAUTION
The descriptions of this section apply to all of the
FSSB interface, I/O Link interface, and PWM
interface.

- 207 -
9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES FANUC AC SERVO AMPLIFIER β series B-65232EN/03

SVU-40, SVU-80 (when the battery(A06B-6093-K001) is not used)

- 208 -
B-65232EN/03 FANUC AC SERVO MOTOR β series 9.OUTLINE DRAWINGS AND MAINTENANCE CLEARANCES

SVU-40, SVU-80 (when the battery(A06B-6093-K001) is used)

- 209 -
V. CONNECTION
B-65232EN/03 CONNECTION 1.TOTAL CONNECTION DIAGRAM

1 TOTAL CONNECTION DIAGRAM

- 213 -
1.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

1.1 FSSB INTERFACE (SVU4, SVU-12, SVU-20)

1.1.1 Three-phase Input

WARNING
Be sure to install circuit breakers, magnetic
contactors, and AC line filters.

- 214 -
B-65232EN/03 CONNECTION 1.TOTAL CONNECTION DIAGRAM

1.1.2 Single-phase Input (SVU4, SVU-12, SVU-20)

WARNING
Be sure to install circuit breakers, magnetic
contactors, and AC line filters.

- 215 -
1.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

1.2 I/O Link INTERFACE (SVU4, SVU-12, SVU-20)

1.2.1 Three-phase Input

WARNING
Be sure to install circuit breakers, magnetic contactors,
and AC line filters.

NOTE
As shown above, make a configuration so that the
external magnetic contactor inserted into the power
input of the β series servo motor amplifier (with the I/O
Link option) is turned on immediately upon emergency
stop cancellation. The period of time allowed until the
external magnetic contactor is turned on after
emergency stop cancellation is 100 ms.

- 216 -
B-65232EN/03 CONNECTION 1.TOTAL CONNECTION DIAGRAM

1.2.2 Single-phase Input (SVU4, SVU-12, SVU-20)

WARNING
Be sure to install circuit breakers, magnetic
contactors, and AC line filters.

NOTE
As shown above, make a configuration so that the
external magnetic contactor inserted into the power
input of the β series servo motor amplifier (with the
I/O Link option) is turned on immediately upon
emergency stop cancellation. The period of time
allowed until the external magnetic contactor is
turned on after emergency stop cancellation is 100
ms.
- 217 -
1.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

1.3 PWM INTERFACE (SVU4, SVU-12, SVU-20)

1.3.1 Three-phase Input

WARNING
Be sure to install circuit breakers, magnetic
contactors, and AC line filters.

- 218 -
B-65232EN/03 CONNECTION 1.TOTAL CONNECTION DIAGRAM

1.3.2 Single-phase Input (SVU4, SVU-12, SVU-20)

WARNING
Be sure to install circuit breakers, magnetic
contactors, and AC line filters.

- 219 -
2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER CONNECTION B-65232EN/03

2 CONNECTOR LOCATIONS FOR β

SERIES AMPLIFIER

- 220 -
B-65232EN/03 CONNECTION 2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER

2.1 FSSB INTERFACE (SVU4, SVU-12, SVU-20)

Name Description Remarks

<1> DC link charge indicator LED (Warning 1)
<2> CX11-1 Main power input connector
<3> CX11-2 Connector for regenerative resistor (DC link)
<4> CX11-3 Motor power line connector
<5> CX11-4,5 24V power input/output connector
<6> CX11-6 Connector for regenerative resistor (for overheat) (Warning 2)
<7> POWER Control power status indicator LED
<8> READY Activation status indicator LED
<9> ALM Alarm status indicator LED
<10> LINK FSSB communication status indicator LED
<11> COP10B FSSB communication input connector
<12> COP10A FSSB communication output connector
<13> JX5 Connector for the ESP signal and signal checking
<14> JF1 Connector for PULSECODER
<15> CX5X,CX5Y Connector for ABS Pulsecoder battery

WARNING
1 It is dangerous to touch any cables and components inside the module while this
LED is lit. Never touch components or cables while this LED is lit.
2 Refer to Section 4.7 for details.

- 221 -
2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER CONNECTION B-65232EN/03

2.2 I/O Link INTERFACE (SVU4, SVU-12, SVU-20)

Name Description Remarks

<1> DC link charge indicator LED (Warning 1)
<2> CX11-1 Main power input connector
<3> CX11-2 Connector for regenerative resistor (DC link)
<4> CX11-3 Motor power line connector
<5> CX11-4,5 24V power input/output connector Both connectors have the same function.
<6> CX11-6 Connector for regenerative resistor (for overheat) (Warning 2)
<7> Status indicator LED
<8> JD1B/I/O LINK FANUC I/O Link connector From a unit at the previous stage
<9> JD1A/I/O LINK FANUC I/O Link connector To a unit at the next stage
<10> JF1/ENC Connector for Pulsecoder connection
<11> JA34/Pulse In External pulse input connector
<12> JA35/EX I/O Built-in DI connector
<13> CX5X,CX5Y Connector for ABS Pulsecoder battery Both connectors have the same function.

WARNING
1 It is dangerous to touch any cables and components inside the module while this
LED is lit. Never touch components or cables while this LED is lit.
2 Refer to Section 4.7 for details.

- 222 -
B-65232EN/03 CONNECTION 2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER

2.3 PWM INTERFACE (SVU4, SVU-12, SVU-20)

Name Description Remarks

<1> DC link charge indicator LED (Warning 1)
<2> POWER Control power status indicator LED
<3> READY Activation status indicator LED
<4> ALM Alarm status indicator LED
<5> CX11-1 Main power input connector
<6> CX11-2 Connector for regenerative resistor (DC link)
<7> CX11-3 Motor power line connector
<8> CX11-4,5 24V power input/output connector Both connectors have the same function.
<9> CX11-6 Connector for regenerative resistor (for overheat) (Warning 2)
<10> JX5/CHK ESP connector & Signal check connector For the servo check pin board
<11> JS1B/PWM NC interface connector Type B interface
<12> JF1/ENC Connector for Pulsecoder connection
<13> CX5X,CX5Y Connector for ABS Pulsecoder battery

WARNING
1 It is dangerous to touch any cables and components inside the module while this
LED is lit. Never touch components or cables while this LED is lit.
2 Refer to Section 4.7 for details.

- 223 -
2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER CONNECTION B-65232EN/03

2.4 PIN ASSIGNMENT OF CONNECTOR CX11 (SVU4, SVU-12,

SVU-20)

The following tables list the pin assignment of connectors CX11-1 to

CX11-6.

- 224 -
B-65232EN/03 CONNECTION 2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER

2.4.1 When No Regenerative Resistor Is Used

Connector kit
Silk Housing pin Housing pin A06B-6093-K305
Signal Signal Specification
CX11 No. No. Model number of
housing
-1 L2 A1 L1 B1 3φ 200VAC input
175363-3
A2 L3 B2 1φ 220VAC input
(Caution)
-2 DCC A DCP B Regenerative resistor
1318182-2
V A1 U B1
Motor output
A2 W B2
-3 1318095-2
Connected when α1
A3 B3
or α2 is used

Input of 24 VDC
-4 0V A +24V B 175362-1
control power
Input of 24 VDC
-5 0V A +24V B 175362-1
control power
Thermostat for
-6 TH2 A TH1 B A660-8011-T604
regenerative resistor

Housing manufacturer : tyco Electronics AMP

CAUTION
When no regenerative discharge resistor is used, it
is recommended to install a dummy housing
(1318182-2) for preventing wrong insertion. Do not
make a connection between the pins (A and B) of
CX11-2. Otherwise, the amplifier can be damaged.
For details, see Section 4.6.

- 225 -
2.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER CONNECTION B-65232EN/03

2.4.2 When a Regenerative Resistor Is Used

Improved connector
kit
Silk Housing pin Housing pin
Signal Signal A06B-6093-K306 Specification
CX11 No. No.
Model number of
housing
-1 L2 A1 L1 B1 3φ 200VAC input
175363-3
A2 L3 B2 1φ 220VAC input
(Caution)
-2 DCC A DCP B ---
Regenerative resistor
V A1 U B1
Motor output
A2 W B2
-3 1318095-2
Connected when α1
A3 B3
or α2 is used

Input of 24 VDC
-4 0V A +24V B 175362-1
control power
Input of 24 VDC
-5 0V A +24V B 175362-1
control power
(Caution)
-6 TH2 A TH1 B --- Thermostat for
regenerative resistor
Housing manufacturer : tyco Electronics AMP

CAUTION
Connect the regenerative resistor cables (resistor
line and alarm signal line). If a wrong connection is
made, the amplifier can be damaged. Refer to
Section 4.7 for details.

NOTE
Mark cables with signal names using wire labels or
the like to prevent incorrect insertion.
[Example of marking]
Wire mark
(Indicate the signal name.)

DCP and DCC can be in either polarity.

TH1 and TH2 can be in either polarity.

- 226 -
B-65232EN/03 CONNECTION 3.DIMENSIONS INCLUDING CABLES

3 DIMENSIONS INCLUDING CABLES

- 227 -
3.DIMENSIONS INCLUDING CABLES CONNECTION B-65232EN/03

3.1 FSSB INTERFACE (SVU-4, SVU-12, SVU-20)

- 228 -
B-65232EN/03 CONNECTION 3.DIMENSIONS INCLUDING CABLES

3.2 I/O Link INTERFACE (SVU-4, SVU-12, SVU-20)

- 229 -
3.DIMENSIONS INCLUDING CABLES CONNECTION B-65232EN/03

3.3 PWM INTERFACE (SVU-4, SVU-12, SVU-20)

- 230 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4 DETAILS OF CABLE CONNECTIONS

- 231 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.1 K1 CABLE CONNECTION (ONLY FOR PWM INTERFACE)

- 232 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

Reference
- Wire for K1 cable
The following wire is recommended for the K1 cable:
FANUC specification : A66L-0001-0284/10P
Name : 10-pair cable
Wire : #28AWG 10 pairs (20 conductors), standard length 200 m
Manufacturer : Hitachi Cable, Ltd., Oki Electric Cable Co., Ltd.

Twisted pair conductor indentification (OKI)

WARNING
1 For the pairs (1-2, 11-12) used for the current feedback signals (IR, IS), use the
central pairs of the cable to minimize the effect of external influences. (For IR and
IS, use pairs 5 and 6 when using the Hitachi cable. Use pairs 6 and 7 when using
the Oki cable.) The use of other cables may cause uneven feed or abnormal noise.
2 These cables feature group shielding. Connect the shielding to ground on the NC
side.

- 233 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

Specifications
Item Unit Specifications
Specifications A66L-0001-0284/10P
Hitachi Cable, Ltd.
Manufacturer
Oki Electric Cable Co., Ltd.
60°C 30V : UL2789
Rating
80°C 30V : UL80276
Conductor Tinned soft steel wire (ASIM B-286)
Insulator Cross-linked vinyl
Material
Braided shield Tinned soft steel wire
Sheath Heat-resistant, oil-resistant vinyl
Number of pairs Pair 10
Size AWG 28
Conductor Structure Conductors/mm 7/0.127
Outside diameter mm 0.38
0.1
Thickness mm
Minimum thickness: 0.38 (3.1 mils)
Insulator Outside diameter
mm 0.58
(approximate value)
Core style (rating) UL1571(80°C 30V)
Outside diameter
Twisted mm 1.16
(approximate value)
pair
Twisting pitch mm 20 or less
A required number of twisted pairs are bundled using binding
Twisted pair binding tape. To form a round cable, an interstitial wire can be used as
required.
Outside diameter of bundled twisted
mm 3.5
pairs
Hitachi Cable, Ltd.: No drain wire is provided.
Drain wire Wires/mm
Oki Electric Cable Co., Ltd.: A drain wire is provided. 10/0.12
Braided Strand diameter mm 0.12
shield Braiding density % 85 or more
Color Black
Thickness mm 1.0
Sheath
Outside diameter
mm 6.2
(approximate value)
Standard length m 200
Packing Bundle
Electric resistance
Ω/km 233 or less
(20_C)
Electrical Insulation resistance
MΩ-km 10 or less
characteristics (20_C)
Dielectric strength
V/min. 300
(A.C.)
The UL standard flame resistance test (VW-ISC) must be
Flame resistance
satisfied.

- 234 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.2 K2 CABLE CONNECTION

For βM0.2/4000, βM0.3/4000

β series servo Servo motor
amplifier βM0.2, βM0.3
(1) SD (A4)
(2) *SD (B4)
(5) REQ (A3)
(6) *REQ (B3)
(9, 20) 5V (A2, B2)
(12, 14) 0V (A1, B1)
(7) 6V (A5)

Connector on the cable side Connector on the cable side

Connector Housing
FI40-2015S 1-1318118-6 (D-2100D 12 poles)
Connector cover
FI-20-CV Contact
Manufacture : HIROSE ELECTRIC CO., LTD 1318107-1 (D-2 receptacle M)
Manufacture : tyco Electronics AMP

The specifications of a recommended wire are indicated below.

Cable length 20m or lower
2
5V, 0V 0.5 mm (AWG21) × 2 (strand structure 20/0.18, coating outer diameter φ0.88 to φ1.5)
2
6V 0.5 mm (AWG21) (strand structure 20/0.18, coating outer diameter φ0.88 to φ1.5)
2
0.18 mm (AWG25) or more. Twisted pair wire
SD, *SD, REQ, *REQ
(strand structure 7/0.18, coating outer diameter φ0.88 to φ1.5)
2 2
0.5 mm × 5 + 0.18 mm × 2 pairs
Recommended wire Hitachi Cable, Ltd. UL20276-SB(0) 5X21AWG+2PX25AWG
(A66L-0001-0461) (For a fixed cable)

NOTE
1 When the user prepares a cable, the user needs to ensure that the sum (both ways)
of 5V and 0V wire resistance values is 0.8Ω or less.
2 The maximum applicable wire diameter for the motor-side cable connector is 0.5
2 2
mm (when the crimping tool (1463475-1) is used) or 0.85 mm (when the crimping
tool (1276654-1) is used). When a thicker wire or cable needs to be used, make a
relay connection as shown below.
Example: When a maximum applicable wire diameter is exceeded
Servo amplifier Servo motor

Relay connector, etc.

The sum (both ways) of 5V

and 0V wire resistance
values is 0.8Ω or less.

- 235 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

For βM0.4/4000, βM0.5/4000, βM1/4000

β series servo Servo motor
amplifier βM0.4 to βM1
(1) SD (2)
(2) *SD (1)
(5) REQ (6)
(6) *REQ (5)
(9, 20) 5V (8, 9)
(12, 14) 0V (7, 10)
(7) 6V (4)

Connector on the cable side Connector on the cable side

Connector Connector
FI40-2015S JN1xS10SL1 : for φ5.7 to 7.3 sheath diameter
Connector cover JN1xS10SL2 : for φ6.5 to 8.0 sheath diameter
FI-20-CV x→D : Straight plug
Manufacture : HIROSE ELECTRIC CO., LTD
F : Angle plug
Contact
JN1-22-22S
Manufacture : Japan Aviation Electronics Industry

The specifications of a recommended wire are indicated below.

Cable length 20m or more
2
5V, 0V 0.5 mm (AWG21) × 2 (strand structure 20/0.18, coating outer diameter φ1.5 or lower)
2
6V 0.5 mm (AWG21) (strand structure 20/0.18, coating outer diameter φ1.5 or lower)
2
0.18 mm (AWG25) or more. Twisted pair wire
SD, *SD, REQ, *REQ
(strand structure 7/0.18, coating outer diameter φ1.5 or lower)
2 2
0.5 mm × 5 + 0.18 mm × 2 pairs
Recommended wire Hitachi Cable, Ltd. UL20276-SB(0) 5X21AWG+2PX25AWG
(A66L-0001-0461) (For a fixed cable)

NOTE
1 When the user prepares a cable, the user needs to ensure that the sum (both ways)
of 5V and 0V wire resistance values is 0.8Ω or less.
2 The maximum applicable wire diameter for the motor-side cable connector is 0.5
mm2 (strand structure 20/0.18 or 104/0.08, coating outer diameter φ1.5 or less), and
the sheath diameter is φ5.7 to φ8.0. When a thicker wire or cable needs to be used,
perform the processing shown below.
3 For an incremental pulse coder, no 6V connection is required.
Example 1: When the wire diameter exceeds 0.5 mm2 Example 2: When the sheath diameter of the cable exceeds φ8
Servo amplifier Servo motor Servo amplifier Cable diameter of exceeds φ8 Servo motor

Soldering,
crimping, etc. Relay connector, etc.

The sum (both ways) of 5V The sum (both ways) of 5V

and 0V wire resistance and 0V wire resistance
values is 0.8Ω or less. values is 0.8Ω or less.

- 236 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

For β1/3000 to β6/2000

i
β series servo Servo motor
amplifier β1 to β6
(1) SD (12)
(2) *SD (13)
(5) REQ (5)
(6) *REQ (6)
(9,18,20) 5V (8, 15)
(12,14) 0V (1, 2, 3)
(7) 6VA (14)
(16) 0VA (10)

Connector on the cable side Connector on the cable side

Connector Connector
FI40-2015S HDAB-15S (D-sub 15 pins)
Connector cover Connector cover
FI-20-CV HDAW-15-CV (waterproof)
Manufacture : HIROSE ELECTRIC CO., LTD HDA-CTH (non-waterproof)
Manufacture : HIROSE ELECTRIC CO., LTD

The specifications of a recommended wire are indicated below.

Cable length 14m or lower
2
5V, 0V 0.5 mm × 2
2
6VA, 0VA 0.5 mm
2
SD, *SD, REQ, *REQ 0.18 mm (AWG25) or more. Twisted pair wire

NOTE
1 When the user prepares a cable, the user needs to ensure that the sum (both ways)
of 5V and 0V wire resistance values is 0.5Ω or less.
2 For an incremental pulse coder, no 6VA and 0VA connections are required.

- 237 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

For αi series servo motor

β series servo Servo motor
amplifier αi series
(1) SD (2)
(2) *SD (1)
(5) REQ (6)
(6) *REQ (5)
(9, 20) 5V (8, 9)
(12, 14) 0V (7, 10)
(7) 6V (4)

Connector on the cable side Connector on the cable side

Connector Connector
FI40-2015S JN1xS10SL1 : for φ5.7 to 7.3 sheath diameter
Connector cover JN1xS10SL2 : for φ6.5 to 8.0 sheath diameter
FI-20-CV x→D : Straight plug
Manufacture : HIROSE ELECTRIC CO., LTD F : Angle plug
Contact
JN1-22-22S
Manufacture : Japan Aviation Electronics Industry

The specifications of a recommended wire are indicated below.

Cable length 50m or lower
2
5V, 0V 0.5 mm (AWG21) × 2 (strand structure 20/0.18, coating outer diameter φ1.5 or lower)
2
6V 0.5 mm (AWG21) (strand structure 20/0.18, coating outer diameter φ1.5 or lower)
2
0.18 mm (AWG25) or more. Twisted pair wire
SD, *SD, REQ, *REQ
(strand structure 7/0.18, coating outer diameter φ1.5 or lower)
2 2
0.5 mm × 5 + 0.18 mm × 2 pairs
Recommended wire Hitachi Cable, Ltd. UL20276-SB(0) 5X21AWG+2PX25AWG
(A66L-0001-0461) (For a fixed cable)

NOTE
1 When the user prepares a cable, the user needs to ensure that the sum (both ways)
of 5V and 0V wire resistance values is 2Ω or less.
2 The maximum applicable wire diameter for the motor-side cable connector is 0.5
mm2 (strand structure 20/0.18 or 104/0.08, coating outer diameter φ1.5 or less), and
the sheath diameter is φ5.7 to φ8.0. When a thicker wire or cable needs to be used,
perform the processing shown below.
3 For an incremental pulse coder, no 6V connection is required.
Example 1: When the wire diameter exceeds 0.5 mm2 Example 2: When the sheath diameter of the cable exceeds φ8
Servo amplifier Servo motor Servo amplifier Cable diameter of exceeds φ8 Servo motor

Soldering,
crimping, etc. Relay connector, etc.

The sum (both ways) of 5V The sum (both ways) of 5V

and 0V wire resistance and 0V wire resistance
values is 2Ω or less. values is 2Ω or less.

- 238 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.3 K3 CABLE CONNECTION

Main power supply Circuit
200 VAC breaker MCC AC line β series servo
220 VAC filter amplifier
230 VAC
240 VAC
50 Hz/60Hz
β series servo
amplifier

β series servo
amplifier

Housing : 175363-3
Contact : 1-175218-2
Manufacturer : tyco Electronics AMP

Applicable cable
Model Heat-resistant vinyl
Cabtyre cable (Warning 1)
cable (Warning 2)
2 2
SVU-12 0.5mm or more 0.5mm or more
2 2
SVU-20 1.0mm or more 1.0mm or more

WARNING
1 600V vinyl cabtyre cable, JIS C 3312, 4 conductors
2 Heat-resistive vinyl cable
(maximum conductor temperature: 105°C)
(equivalent to the LMFC, manufactured by
FURUKAWA ELECTRIC CO., LTD.)

- 239 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.4 K4 CABLE CONNECTION

This section describes the servo motor/amplifier power cable in the

following order:
1. Connector
2. Power cable selection (general)
3. Servo motor power cable

1. Connector
With the β series, the D-3000 or D-5000 series connector
(manufactured by tyco Electronics AMP) is employed for power cable
connection. For each model, the specifications of receptacle housings
and receptacle contacts are provided below.

Applicable models : SVU-4, SVU-20

β servo amplifier Motor

CX11-3 (B1) U U

CX11-3 (A1) V V

CX11-3 (B2) W W

CX11-3 (A2)
GND(Body)

Applicable models : SVU-40, SVU-80

β servo amplifier Motor

CX22 (B1) U U

CX22 (A1) V V

CX22 (B2) W W

CX22 (A2) GND(Body)

- 240 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

[Receptacle housing]
Receptacle housings with two key types are available. Use a
receptacle housing with the key type suitable for the servo amplifier.
Model number of Applicable
Key specification Remarks
receptacle housing models
Wrong insertion
1318095-2 SVU-4, SVU-20 (*1)
protection key
1-917807-2 XX SVU-40, SVU-80

(*1) The key-less receptacle housings (175362-1, 175363-1) are also

usable. However, the use of the receptacle housings with the
specifications above is recommended.

[Receptacle contact]
Receptacle contacts are available for two wire diameter ranges of a
cable. Use a receptacle contact suitable for the wire diameter of the
cable used.

Applicable models : SVU-4, SVU-20

Insulation
Model
coating
Model number of Wire size Wire size number of
2 outer
receptacle contact (mm ) AWG manual
diameter
tool
(mm)
M size 1-175217-2 0.2- 0.5 24/22/20 1.2-2.6 91559-1
L size 1-175218-2 0.5- 1.25 20/18/16 1.8-2.8 91558-1

Applicable models : SVU-40, SVU-80

Insulation
Model
coating
Model number of Wire size Wire size number of
2 outer
receptacle contact (mm ) AWG manual
diameter
tool
(mm)
S size 316040-2 1.23 – 2.27 16/14 3.0-3.8 0-234170-1
M size 316041-2 3.08 – 5.50 12/10 4.0-5.2 0-234171-1

- 241 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

[Connector and tool ordering information]

The connectors (housings, contacts) and tools can be purchased
directly from tyco Electronics AMP. They are also available as
options from FANUC as indicated below.

Applicable models : SVU-4, SVU-20

Specifications Contents
Wrong insertion protection key 175363-3 (1pcs.)
Wrong insertion protection key 1318182-2 (1pcs.)
Housing Wrong insertion protection key 1318095-2 (1pcs.)
A06B-6093- Key-less 175362-1 (2pcs.)
K305 Dummy connector A660-8011-T604 (1pcs.)
(When no M size 1-175217-2 (4pcs.)
2
regenerative Contact Applicable wire diameter: 0.2-0.5mm , AWG24/22/20
resistor is used) Applicable tool: 91559-1 (not included in the kit)
L size 1-175218-2 (10pcs.)
2
Contact Applicable wire diameter: 0.5-1.25mm , AWG20/18/16
Applicable tool: 91558-1 (not included in the kit)
Wrong insertion protection key 175363-3 (1pcs.)
Housing Wrong insertion protection key 1318095-2 (1pcs.)
A06B-6093- Key-less 175362-1 (2pcs.)
K306 M size 1-175217-2 (4pcs.)
2
(When a Contact Applicable wire diameter: 0.2-0.5mm , AWG24/22/20
regenerative Applicable tool: 91559-1 (not included in the kit)
resistor is used) L size 1-175218-2 (10pcs.)
2
Contact Applicable wire diameter: 0.5-1.25mm , AWG20/18/16
Applicable tool: 91558-1 (not included in the kit)

Applicable models : SVU-40, SVU-80

Specifications Contents
Housing: XX key 1-917807-2 (1pcs.)
Contact: S size 316040-2 (4pcs.)
A06B-6093-K312 2
Applicable wire diameter: 1.23-2.27mm , AWG16/14
Applicable tool: 0-234170-1 (not included in the kit)
Housing: XX key 1-917807-2 (1pcs.)
Contact: M size 316041-2 (4pcs.)
A06B-6093-K313 2
Applicable wire diameter: 3.08-5.50mm , AWG12/10
Applicable tool: 0-234171-1(not included in the kit)

Crimping tool
Specifications Contents
Applicable tool: 0-234170-1
A06B-6110-K220#D5S Contact: S size 316040-2
2
Applicable wire diameter: 1.23-2.27mm , AWG16/14
Tool: 0-234171-1
A06B-6110-K220#D5M Contact: M size 316041-2
2
Applicable wire diameter: 3.08-5.50mm , AWG12/10
A06B-6110-K220#D5R Extractor: 409158-1

- 242 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

2. Power cable selection (general)

When selecting cable specifications, consider the following use
conditions:
<1> Motor rated current or actual current on the machine
<2> Power cable type (heat resistance, etc)
<3> Cable installation environment (ambient temperature, etc.)
<4> Requirement for waterproofness (Pay attention to the matching
diameter with a cable clamp)
<5> Compliance with CE marking (compliance with various safety
standards and EMC standard)

Examples of heavy-duty power cord selection are provided below.

Before applying an example of selection to an actual case, the user
needs to carefully check the use conditions. Note that data such as
power line diameter information is calculated based on JCS No. 168
D (1980) "Allowable Current of Power Cable (No. 1)".

[Examples of power cable selection (reference information)]

[Selection example 1]
Heavy-duty power cord specifications
Maximum allowable conductor temperature: 60°C
Ambient temperature: 30°C
Cable wire diameter Allowable current value Model number of
2
[mm ] [Arms] receptacle contact
0.75 Up to 11 L size 1-175218-2
L size 1-175218-2
1.25 Up to 15
S size 316040-2
2 Up to 19 S size 316040-2
3.5 Up to 27 M size 316041-2
5.5 Up to 35 M size 316041-2

[Selection example 2]
Heavy-duty power cord specifications:
Maximum allowable conductor temperature: 80°C
Ambient temperature: 55°C
Cable wire diameter Allowable current value Model number of
2
[mm ] [Arms] receptacle contact
0.75 Up to 9.2 L size 1-175218-2
L size 1-175218-2
1.25 Up to 12.7
S size 316040-2
2 Up to 16.3 S size 316040-2
3.5 Up to 23.4 M size 316041-2
5.5 Up to 31.2 M size 316041-2

- 243 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

3. Servo motor power cable

A servo motor power cable consists of the following components:
<1> Power cable
<2> Amplifier-side connector
<3> Motor-side connector

<1> Power cable

Based on "2. Power cable selection (general)" above, an example
of combinations of servo motors with power cables is described
below.

[Example of combinations of servo motors with power cables

(reference information)]
Continuous [Selection [Selection
rated current example 1] example 2]
Servo motor [Arms] Cable wire Cable wire
(reference diameter diameter
2 2
value) [mm ] [mm ]
α1/5000i 2.7 0.75 0.75
αM2/5000i 3.3 0.75 0.75
α2/5000i 3.5 0.75 0.75
αC4/3000i 4.1 0.75 0.75
αM3/5000i 4.6 0.75 0.75
αC8/2000i 5.6 0.75 0.75
αC12/2000i 6.5 0.75 0.75
α4/4000i 7.7 0.75 0.75
α8/3000i 8.4 0.75 0.75
αM8/4000i 11.1 0.75 1.25
αC22/2000i 12.3 1.25 1.25
αM12/4000i 13.4 1.25 2
αC30/1500i 14.2 1.25 2
α12/3000i 18.1 2 3.5
α22/3000i 18.4 2 3.5
βM0.2/4000 0.9 0.75 0.75
βM0.3/4000 0.9 0.75 0.75
βM0.4/4000 3.5 0.75 0.75
βM0.5/4000 3.0 0.75 0.75
βM1/4000 2.7 0.75 0.75

<2> Amplifier-side connector

Select a connector according to "1. Connector" above.

<3> Motor-side connector

The specifications of a motor-side connector depend on the
motor model.
For details of motor-side connectors for the β series servo
motors and βM series servo motors, see Chapter 9,
"CONNECTOR", in Part I of this manual.
For details of motor-side connectors for the αi series servo
motors, refer to "FANUC AC SERVO MOTOR αi series
DESCRIPTIONS (B-65262EN)".

- 244 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.5 K5 CABLE CONNECTION

4.5.1 FOR FSSB Interface or PWM Interface

β series amplifier Emergency stop contact

JX5 (20) +24V

JX5 (17) *ESP

Wire to be used : 0.18 mm2 or more

Housing : PCR-V20LA
Connector : PCR-E20FA
Manufacturer : Honda Tsushin Kogyo

NOTE
When the contact is on (closed), the servo motor is
ready for operation. When the contact is off (open),
the external magnetic contactor (MCC) is off,
disabling the servo motor.
If the contact is turned off (open) during motor
rotation, the servo motor stops with a dynamic
brake.
Contact input signals must satisfy the following
requirements:
The external contact is rated at 30VDC, 100mA or
higher.
The significant levels for no-contact inputs (if used)
are:
Low level (logic 0) = not higher than 2V
High level (logic 1) = not lower than 20V

- 245 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.5.2 ESP Signal Using More than One β Amplifier

β series amplifier
Emergency stop
+24V JX5 (20)

ESP JX5 (17)

β series amplifier

JX5 (20)

ESP JX5 (17)

β series amplifier

JX5 (20)

ESP JX5 (17)

WARNING
Up to six β series amplifiers can be connected to
the emergency stop switch.

- 246 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.5.3 ESP Signal in Using a Servo Check Pin Board

To use a servo check pin board (A06B-6071-K290), remove cable K5

from connector JX5 and attach the servo check pin board. The pin
board has two connectors that are arranged back-to-back with their
pins connected on a one-to-one basis. Attach the cable K5 to the
remaining connector.
For details, refer to the maintenance manual (B-65235EN) for the β
series amplifiers.

β series amplifier

Cable K5
JX5 Servo check pin board
(A06B-6071-K290)

- 247 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.6 K7 CABLE CONNECTION

4.6.1 When Regenerative Discharge Unit is Used

β series amplifier Regenerative discharge unit

CX11-2 (DCP) B1 DCP

CX11-2 (DCC) A1 DCC

Housing A06B-6093-H401
175362-1 or
Contact A06B-6093-H402
1-175218-2
Manufacturer : tyco Electronics AMP

4.6.2 When Regenerative Discharge Unit is not Used

β series amplifier
CX11-2 (DCP) B1

CX11-2 (DCC) A1

Housing
1318182-2
Contact
None
Manufacturer : tyco Electronics AMP

CAUTION
Do not make a connection between the DCP pin
and DCC pin.
It is recommended to protect against wrong
insertion by inserting a housing (1313182-2).

- 248 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.7 K8 CABLE CONNECTION

4.7.1 When Regenerative Discharge Unit is Used

β series amplifier Regenerative discharge unit

CX11-6 (TH1) B1

CX11-6 (TH2) A1

Housing
175362-1
Contact
1-175218-2
Manufacturer : tyco Electronics AMP

4.7.2 When Regenerative Discharge Unit is not Used

If no regenerative discharge unit is used, jumper the CX11-6 pins.

The connector kit (A06B-6093-K301) comes with a standard dummy
connector that jumpers the CX11-6 pins.

β series amplifier
CX11-6 (TH1) B1

CX11-6 (TH2) A1

Housing
175362-1
Contact
1-175218-2
Manufacturer : tyco Electronics AMP

- 249 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.8 K9 CABLE CONNECTION

Connection method 1
The lithium battery has its own connecting cables. Mount the lithium
battery in the amplifier, as shown below.

- 250 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

Connection method 2
β series amplifier Battery unit

CX5X, CX5Y (2) +6V

CX5X, CX5Y (1) 0V

Housing Wire to be used Screw terminal : M3

IL-L2S-S3L-B(N) Nominal sectional area Crimp terminal : 1.25-4
Contact 0.32mm2 or less
IL-C2-1-00001
Manufacturer : Japan Aviation Electronics Industry

Up to six units

- 251 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.9 K10 CABLE CONNECTION

Use a wire that satisfies the specifications of the electromagnetic

contactor.
Install a device such as a spark killer in order to suppress noise that
can arise from an abrupt change in current when the circuit operates.

- 252 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.10 K12 CABLE CONNECTION

DC power supply (24 VDC) β series amplifier

+24V B1 CX11-4 (+24V)

0V A1 CX11-4 (0V)

Wire to be used Housing

Nominal sectional area : 175362-1
0.22 to 1.42 mm2 or less Contact
1-175217-2 (0.22 to 0.5mm2)
1-175218-2 (0.51 to 1.42mm2)
Manufacturer :
tyco Electronics AMP

- 253 -
4.DETAILS OF CABLE CONNECTIONSCONNECTION B-65232EN/03

4.11 K13 CABLE CONNECTION

β series amplifier β series amplifier

CX11-5 (+24V) B1 B1 CX11-4 (+24V)

CX11-5 (0V) A1 A1 CX11-4 (0V)

Wire to be used
Nominal sectional area : 0.22 to 1.42 mm2

Housing Housing
175362-1 175362-1
Contact Contact
1-175217-2 1-175217-2 (0.22 to 0.5mm2)
1-175218-2 1-175218-2 (0.51 to 1.42mm2)
Manufacturer : Manufacturer :
tyco Electronics AMP tyco Electronics AMP

- 254 -
B-65232EN/03 CONNECTION4.DETAILS OF CABLE CONNECTIONS

4.12 K14 CABLE CONNECTION

β series amplifier β series amplifier

CX5X, CX5Y (2) CX5X, CX5Y (2)

CX5X, CX5Y (1) CX5X, CX5Y (1)

Wire to be used
Nominal sectional area : 0.32 mm2 or less

Housing Housing
IL-L2S-S3L-B(N) IL-L2S-S3L-B(N)
Contact Contact
IL-C2-1-00001 IL-C2-1-00001
Manufacturer : Manufacturer :
Japan Aviation Electronics Japan Aviation Electronics
Industry Industry

- 255 -
5.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

5 TOTAL CONNECTION DIAGRAM

- 256 -
B-65232EN/03 CONNECTION 5.TOTAL CONNECTION DIAGRAM

5.1 FSSB INTERFACE (SVU40, SVU-80)

5.1.1 Three-phase Power Input

- 257 -
5.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

5.1.2 Single-phase Power Input

- 258 -
B-65232EN/03 CONNECTION 5.TOTAL CONNECTION DIAGRAM

5.2 I/O Link INTERFACE(SVU40, SVU-80)

5.2.1 Three-phase Power Input

- 259 -
5.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

5.2.2 Single-phase Power Input

- 260 -
B-65232EN/03 CONNECTION 5.TOTAL CONNECTION DIAGRAM

5.3 PWM INTERFACE (SVU40, SVU-80)

5.3.1 Three-phase Power Input

- 261 -
5.TOTAL CONNECTION DIAGRAM CONNECTION B-65232EN/03

5.3.2 Single-phase Power Input

- 262 -
B-65232EN/03 CONNECTION 6. CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER (SVU40, SVU-80)

6 CONNECTOR ALLOCATION DIAGRAM

OF β AMPLIFIERS (SVU40, SVU-80)

- 263 -
6.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER (SVU40, SVU-80) CONNECTION B-65232EN/03

6.1 FSSB INTERFACE

Name Description Remarks

<1> POWER Control power status indicator LED
<2> ALM Alarm status indicator LED
<3> DRDY Activation status indicator LED
<4> LINK Communication status indicator LED
<5> FUSE Fuse for 24V power supply
<6> COP10B Connection for FSSB (to master)
<7> COP10A Connection for FSSB (to slave)
<8> JX5/CHK Connector for ESP and signal checking
<9> JF1/ENC Connection for Pulsecoder
For servo
<10> CX5X/5Y Battery connector for ABS Pulsecoder check pin
board
<11> CX18X/18Y Connection for fan motor
<12> CX19A/19B 24V power input/output connector
Connector for separated regenerative
<13> CX20 (Note)
resistor (OH alarm)
<14> DC link charge indicator LED (Warning)
Switch for regeneration error detection
<15> SW
circuit changeover
<16> CX21 Connector for primary power input
<17> CX22 Connector for motor power
Connector for separated regenerative
<18> CX23 (Note)
resistor (resistor line)

WARNING
It is dangerous to touch any cables and
components inside the module while this LED is lit.
Never touch components or cables while this LED
is lit.

NOTE
Refer to Section 8.5 for details.

- 264 -
B-65232EN/03 CONNECTION 6. CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER (SVU40, SVU-80)

6.2 I/O Link INTERFACE (SVU-40, SVU-80)

Name Description Remarks

<1> STATUS Status indicator LED
<2> FUSE Fuse for 24V power supply
<3> JD1B Connector for I/O Link (to master)
<4> JD1A Connector for I/O Link (to slave)
<5> JF1/ENC Connector for Pulsecoder
JA34/
<6> Connector for external pulse input
Pulse In
JA35/
<7> Connector for built-in DI
EX I/O
For servo
<8> CX5X/5Y Battery connector for ABS Pulsecoder check pin
board
<9> CX18X/18Y Connector for fan motor
<10> CX19A/19B 24V power input/output connector
Connector for separated regenerative
<11> CX20 (Note)
resistor (OH alarm)
<12> DC link charge indicator LED (Warning)
Switch for regeneration error detection
<13> SW
circuit changeover
<14> CX21 Connector for primary power input
<15> CX22 Connector for motor power
Connector for separated regenerative
<16> CX23 (Note)
resistor (resistor line)

WARNING
It is dangerous to touch any cables and
components inside the module while this LED is lit.
Never touch components or cables while this LED
is lit.

NOTE
Refer to Section 8.5 for details.

- 265 -
6.CONNECTOR LOCATIONS FOR β SERIES AMPLIFIER (SVU40, SVU-80) CONNECTION B-65232EN/03

6.3 PWM INTERFACE (SVU-40, SVU-80)

Name Description Remarks

<1> POWER Control power status indicator LED
<2> DRDY Activation status indicator LED
<3> ALM Alarm status indicator LED
<4> FUSE Fuse for 24V power supply
<5> JX5/CHK Connector for ESP and signal checking
<6> JS1B Connector for NC interface
<7> JF1/ENC Connector for Pulsecoder
For servo
<8> CX5X/5Y Battery connector for ABS Pulsecoder check pin
board
<9> CX18X/18Y Connector for fan motor
<10> CX19A/19B 24V power input/output connector
Connector for separated regenerative
<11> CX20 (Note)
resistor (OH alarm)
<12> DC link charge indicator LED (Warning)
Switch for regeneration error detection
<13> SW
circuit changeover
<14> CX21 Connector for primary power input
<15> CX22 Connector for motor power
Connector for separated regenerative
<16> CX23 (Note)
resistor (resistor line)

WARNING
It is dangerous to touch any cables and
components inside the module while this LED is lit.
Never touch components or cables while this LED
is lit.

NOTE
Refer to Section 8.5 for details.

- 266 -
B-65232EN/03 CONNECTION 7.DIMENSIONS INCLUDING CABLES

7 DIMENSIONS INCLUDING CABLES

- 267 -
7.DIMENSIONS INCLUDING CABLES CONNECTION B-65232EN/03

7.1 FSSB INTERFACE (SVU-40, SVU-80)

- 268 -
B-65232EN/03 CONNECTION 7.DIMENSIONS INCLUDING CABLES

7.2 I/O Link INTERFACE (SVU-40, SVU-80)

- 269 -
7.DIMENSIONS INCLUDING CABLES CONNECTION B-65232EN/03

7.3 PWM INTERFACE (SVU-40, SVU-80)

- 270 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

8 DETAILS OF CABLE CONNECTIONS

- 271 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.1 K1 CABLE CONNECTION (ONLY FOR PWM INTERFACE)

Refer to Section 4.1 “K1 CABLE CONNECTION (ONLY FOR

PWM INTERFACE).”

- 272 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

8.2 K2 CABLE CONNECTION (ONLY FOR PWM INTERFACE)

Refer to Section 4.2 “K2 CABLE CONNECTION (ONLY FOR

PWM INTERFACE).”

- 273 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.3 K3 CABLE CONNECTION

Main power supply Circuit
200 VAC breaker MCC AC line β series servo
220 VAC filter amplifier
230 VAC
240 VAC
50 Hz/60Hz
β series servo
amplifier

β series servo
amplifier

Applicable cable
Model Heat-resistant vinyl
Cabtyre cable (Warning 1)
cable (Warning 2)
2 2
SVU-40 3.5 mm or more 3.5 mm or more
2 2
SVU-80 3.5 mm or more 3.5 mm or more

CX21-1 (L1)
L1

CX21-2 (L2)
L2

CX21-3 (L3)
L3

CX21-4 ( )

Housing : 1-179958-4 Wire to be used

Contact : 316041.2 600V vinyl cabtyre cable, 4 conductors
Applicable power line (Nominal sectional area : 3.5 mm2)
range :
3.50mm2 to 5.50mm2
Manufacturer :
tyco Electronics AMP

WARNING
1 600V vinyl cabtyre cable, JIS C 3312, 4 conductors
2 Heat-resistive vinyl cable
(maximum conductor temperature: 105°C)
(equivalent to the LMFC, manufactured by
FURUKAWA ELECTRIC CO., LTD.)

- 274 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

8.4 K4 CABLE CONNECTION

Refer to Section 4.4 “K4 CABLE CONNECTION.”

- 275 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.5 K7 AND K8 CABLES CONNECTION

When separated regenerative discharge unit is used

Separated regenerative discharge
β series amplifier unit

CX23-B1 (RC)

CX23-B2 (RE)

Cable specification :
Vinyl cabtyre cable, JIS C 3312, 2 conductors
Conductor 3.5 mm2
Housing : 2-917807-2
Contact : 316041-2
Applicable power line range : 3.5mm2 to 5.5mm2
Crimping terminal : 5.5-4
Manufacture : tyco Electronics AMP

CX20-1 (TH1)

CX20-3 (TH2)

Cable specification :
Vinyl cabtyre cable, JIS C 3312, 2 conductors
Conductor 0.75 mm2
Housing : 2-178288-3
Contact : 1-175218-5
Applicable power line range : 0.5mm2 to 1.25mm2
Crimping terminal : 1.25-4
Manufacture : tyco Electronics AMP

- 276 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

When separated regenerative discharge unit is not used

Make a connection within connector CX23 by using a dummy
housing.

CX23-A1 (RC)

CX23-A2 (RI)

Cable specification :
Vinyl cabtyre cable, JIS C 3312, 2 conductors
Conductor 3.5 mm2
Housing : 2-917807-2
Contact : 316041-2
Applicable power line range : 3.5mm2 to 5.5mm2
Manufacture : tyco Electronics AMP

Make a connection within connector CX20 by using a dummy

housing.
β series amplifier

CX20-1 (TH1)

CX20-3 (TH2)

Cable specification :
Vinyl cabtyre cable, JIS C 3312, 2 conductors
Conductor 0.75 mm2
Housing : 2-178288-3
Contact : 1-175218-5
Applicable power line range : 0.5mm2 to 1.25mm2
Manufacture : tyco Electronics AMP

- 277 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.6 K14 CABLE CONNECTION

β series amplifier β series amplifier

CX5Y (2) CX5X (2)

CX5Y (1) CX5X (1)

Wire to be used
Nominal sectional area : 0.32 mm2 or less

Housing Housing
IL-L2S-S3L-B(N) IL-L2S-S3L-B(N)
Contact Contact
IL-C2-1-00001 IL-C2-1-00001
Manufacturer : Manufacturer :
Japan Aviation Electronics Japan Aviation Electronics
Industry Industry

- 278 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

8.7 K15 CABLE CONNECTION

β series amplifier Battery unit

CX5X (2) +6V

CX5X (1) 0V

Wire to be used
Nominal sectional area : 0.32 mm2 or less

Housing Screw terminal : M3

IL-L2S-S3L-B(N) Crimping terminal : 1.25-4
Contact
IL-C2-1-00001
Manufacturer : Japan Aviation Electronics Industry

- 279 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.8 K12 CABLE CONNECTION

DC power supply (24 VDC) β series amplifier

+24V CX19A-1 (24V)

0V CX19A-2 (0V)

Wire to be used
Nominal sectional area : 0.22 to 1.25 mm2 or less

Housing
1-178288-3
Contact
1-175217-5 (0.2 to 0.5mm2)
1-175218-5 (0.5 to 1.25mm2)
Manufacturer : Japan AMP

- 280 -
B-65232EN/03 CONNECTION 8.DETAILS OF CABLE CONNECTIONS

8.9 K12 CABLE CONNECTION

DC power supply (24 VDC) β series amplifier

CX19B-1 (+24V) CX19A-1 (+24V)

CX19B-2 (0V) CX19A-2 (0V)

Wire to be used
Nominal sectional area : 0.22 to 1.25 mm2 or less

Housing Housing
1-178288-3 1-178288-3
Contact Contact
1-175217-5 (0.2 to 0.5mm2) 1-175217-5 (0.2 to 0.5mm2)
1-175218-5 (0.5 to 1.25mm2) 1-175218-5 (0.5 to 1.25mm2)
Manufacturer : Japan AMP Manufacturer : Japan AMP

- 281 -
8.DETAILS OF CABLE CONNECTIONS CONNECTION B-65232EN/03

8.10 OTHER CABLE CONNECTIONS

The descriptions for the β amplifiers SVU-4, SVU-12, and SVU-20

apply. See Chapter 4, "DETAILS OF CABLE CONNECTIONS".

- 282 -
B-65232EN/03 CONNECTION 9.FANUC I/O Link CONNECTION (FOR I/O Link INTERFACE ONLY)

9 FANUC I/O Link CONNECTION (FOR I/O

Link INTERFACE ONLY)

- 283 -
9.FANUC I/O Link CONNECTION (FOR I/O Link INTERFACE ONLY) CONNECTION B-65232EN/03

9.1 OVERVIEW

The FANUC I/O Link is a serial interface for connecting a CNC, β

series servo amplifier (with the I/O Link option), I/O Unit-A, Power
Mate, and so forth to transfer I/O signals (bit data) at high-speed
among those units. When multiple units are connected by using the
FANUC I/O Link, one unit functions as a master, and the other units
function as slaves. The states of input signals from the slaves are
transferred to the master at regular intervals, and an output signal
from the master is transferred to the slaves at regular intervals. The β
series servo amplifier (with the I/O Link option) can function only as
a slave. The number of input points is 128, and the number of output
points is also 128.

The connector names of the I/O Link are JD1A (or JD1A1) and JD1B,
which are common to all units with the I/O Link function. A cable
must always be connected from JD1A (or JD1A1) to JD1B. No cable
is connected to JD1A of the last unit, so that JD1A of the last unit is
left open, and need not have a component such as a terminator
connected.

An I/O Link connection may be made via an electric cable or optical

cable. Use an optical cable in the following cases:
- When the cable is longer than 10 m, or when the cable within the
same cabinet is longer than 15 m. If the cable is installed in a
duct, the units connected to both ends of the cable must be
regarded as being installed within the same cabinet. Suppose, for
example, that a CNC functioning as the host is installed in the
operator's panel, a β series servo amplifier (with the I/O Link
option) is installed in the power magnetics cabinet, and an I/O
Link cable for connecting the CNC with the β series servo
amplifier is run through a duct. In this case, the CNC and the β
series servo amplifier (with the I/O Link option) are regarded as
being installed within the same cabinet.
- When the cable is run from one cabinet to another, and the
cabinets cannot be connected with each other via a ground wire
of 5.5 mm2 or more
- When the cable is affected significantly by noise. For example,
when a powerful electromagnetic noise source such as a welding
machine is placed near the cable, or when the cable is routed for
a long distance in parallel with a power line or cable related to
power magnetics that generates noise

- 284 -
B-65232EN/03 CONNECTION 9.FANUC I/O Link CONNECTION (FOR I/O Link INTERFACE ONLY)

9.2 FANUC I/O Link CONNECTION VIA ELECTRIC CABLE

Details of connection of cable K20 (when a connection is made with

the host controller or the slave unit at the previous stage)

Host controller or slave unit at β series amplifier

the previous stage

JD1A1/JD1A JD1B
SIN (1) (3) SOUT
*SIN (2) (4) *SOUT
SOUT (3) (1) SIN
*SOUT (4) (2) *SIN
0V (11) (11) 0V
0V (12) (12) 0V
0V (13) (13) 0V
0V (14) (14) 0V

Details of connection of cable K20 (when a connection is made with

the slave unit at the next stage)
When there is a slave unit at the next stage, make the following
connection:
β series amplifier Slave unit at the next stage

JD1A JD1B
SIN (1) (3) SOUT
*SIN (2) (4) *SOUT
SOUT (3) (1) SIN
*SOUT (4) (2) *SIN
0V (11) (11) 0V
0V (12) (12) 0V
0V (13) (13) 0V
0V (14) (14) 0V

Specifications of a recommended connector and case for cable K20

on the β series amplifier side
Connector : PCR-E20FS (Soldering type) (Honda Communications)
PCR-E20FA (Crimping type)
Case : PCR-V20L

Recommended cable for K20 cable

- 285 -
9.FANUC I/O Link CONNECTION (FOR I/O Link INTERFACE ONLY) CONNECTION B-65232EN/03

A66L-0001-0284#10P (10 twisted pair cable with a shield on the

outside)

NOTE
1 Maximum cable length: 10 m (when the above
recommended wire is used)
2 Use the same twisted wire pair for the SIN and *SIN
signals. Also use the same twisted wire pair for the
SOUT and *SOUT signals.
3 Do not make any connection to the pins other than
those shown above. Do not connect an unused
conductor of the cable.
4 Connect the shield of the cable to the ground plate
of the cabinet by using a cable clamp. Regardless
of whether a β series servo amplifier is connected
with the host controller (or the slave unit at the
previous stage) or the slave unit at the next stage,
clamp and shield the cable immediately when the
cable is run into the cabinet. If the host controller is
installed in one cabinet, and a β series servo
amplifier is installed in another cabinet, shield
processing is required twice for one cable. Even if
the cable is not routed outside the cabinet, be sure
to clamp and shield the cable at least one location.
5 Switch on the control power for the servo amplifier
at the same time with or before the host controller
connected to the servo amplifier through the I/O
Link. When switching off the host controller power,
also switch off the servo amplifier control power.

Host controller ON
power OFF t
Servo amplifier ON
control power OFF
t : 0 or more

- 286 -
B-65232EN/03 CONNECTION 9.FANUC I/O Link CONNECTION (FOR I/O Link INTERFACE ONLY)

9.3 FANUC I/O Link CONNECTION VIA OPTICAL CABLE

By using an optical cable with an optical I/O Link adapter, the

FANUC I/O Link can be extended up to 200 m. For details, refer to
the manual of the host controller.

- 287 -
10.CONNECTION OF BUILT-IN DI (FOR I/O Link INTERFACE ONLY) CONNECTION B-65232EN/03

10 CONNECTION OF BUILT-IN DI (FOR I/O

Link INTERFACE ONLY)

- 288 -
B-65232EN/03 CONNECTION 10.CONNECTION OF BUILT-IN DI (FOR I/O Link INTERFACE ONLY)

10.1 INPUT SIGNAL SPECIFICATION

The DC input signals are those sent from the machine to the servo
unit.
They are transferred via a non-insulated interface that can be switched
between sink type (24V common) and source type (0V common)
except for an emergency stop input, which is fixed at a sink type (24
V common).
The relevant safety standards require that the interface be used as sink
type.

The contacts on the machine side must satisfy the following

requirements:

Contact capacity :
30VDC, 16mA or higher
Closed-state contact-to-contact leakage current :
1 mA or lower (at 26.4V) :
Closed-state contact-to-contact voltage drop :
2V or lower (including voltage drop across cable, with 8.5mA)

For information about the specifications of the skip signal, see

Section 10.4.

- 289 -
10.CONNECTION OF BUILT-IN DI (FOR I/O Link INTERFACE ONLY) CONNECTION B-65232EN/03

10.2 LIST OF SIGNALS

(1) *ESP :
Opening the contact for the emergency stop signal input (*ESP)
resets the servo unit and brings it to an emergency stop.
Generally, this signal is issued using the B contact of a
pushbutton switch.

(2) *+OT :
Setting the positive overtravel signal input (*+OT) to logical 0
disables forward movement. This signal can be made unusable
by parameter setting.

(3) *-OT :
Setting the negative overtravel signal input (*-OT) to logical 0
disables reverse movement. This signal can be made unusable by
parameter setting.

(4) *RILK(*DEC) :
Interlock signal input (*RILK) or deceleration signal input for
reference position return (*DEC). One of the two functions is
selected according to parameter setting. If the interlock signal
input (*RILK) is selected, axis motion is decelerated to a stop
when this signal is set to logic 0. When this signal is set to logic
1, axis motion is resumed. If the deceleration signal input for
reference position return (*DEC) is selected, the feedrate
decreases to a certain value then remains at the decreased value
for continued movement when this signal is set to logic 0. When
this signal is set to logic 1, feed operation stops at an electric
grid position.

(5)HDI :
The rising or falling edge of the skip signal input (HDI) can be
used to cause the current block to be skipped. Whether the rising
edge or falling edge is used depends on the parameter setting.

- 290 -
B-65232EN/03 CONNECTION 10.CONNECTION OF BUILT-IN DI (FOR I/O Link INTERFACE ONLY)

10.3 SIGNAL CONNECTION WITH THE POWER MAGNETICS

CABINET

β series servo amplifier

JA35 +24V
+24V (10),(19)

Emergency stop
signal input *ESP (5) Filter and
receiver

Interlock signal input

(Deceleration signal input for reference
position return)
*RILK (6)
Filter and
receiver
Positive overtravel
signal input
*+OT (7)
Filter and
receiver
Negative overtravel
signal input
*+OT (8)
Filter and
receiver

DIC (11)

0V (12, 14, 16)

NOTE
1 Use cable (with a shield on the outside) for Cable K21.
2 Use wire having a size of 7/0.18 (0.18mm2) for 0V, +24V,
and DIC.
3 Do not make any connection to the pins other than those
shown above. Do not connect an unused conductor of the
cable.
4 The above diagram is an example of a configuration with 24V
common. For a configuration with 0V common, connect DIC
(JA35-11) to +24V (JA35-10, 19), and the stage ahead of
each switch to 0V (JA35-12, 14, 16). Note that only the 0V
common configuration can be used for the emergency stop
signal (JA35-5, *ESP).
5 Within 100 ms after emergency stop cancellation, turn on the
external magnetic contactor inserted into the power input of
the β series servo motor amplifier (with the I/O Link option).

- 291 -
10.CONNECTION OF BUILT-IN DI (FOR I/O Link INTERFACE ONLY) CONNECTION B-65232EN/03

10.4 SKIP SIGNAL INTERFACE

β series amplifier

JA35 Receiver
HDI (15)

0V (12, 14, 16)

10.4.1 High-Speed Skip Signal Input Specification

Circuit configuration
β series amplifier
Shield
Driver Filter Receiver
IiH / IiL

VH / VL

Absolute maximum rating

Input voltage range Vin: -3.6V to +13.6V

Input characteristics
Item Symbol Rating Unit Remarks
High-level input voltage VH 3.6 to 11.6 V
Low-level input voltage VL 0 to 1.0 V
2 max mA Vin=5V
High-level input current IiH
11 max mA Vin=10V
Low-level input current IiL -8.0 max mA Vin=0V
Pulse width of input signal 20 min µs

NOTE
For IiH and IiL, the plus algebraic sign indicates the
current that flows into the receiver, while the minus
algebraic sign indicates the current that flows out
from the receiver.

- 292 -
B-65232EN/03 CONNECTION 11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE)

11 EXTERNAL PULSE INPUT (ONLY FOR

I/O Link INTERFACE)
The FANUC servo amplifier unit β series (I/O Link option) enables
operation according to externally applied pulses.
As an external pulse generator, an A/B-phase pulse generator of
differential type satisfying the specification or a manual pulse
generator available from FANUC can be selected. When a manual
pulse generator is selected, a manual pulse generator adapter (A06B-
6093-D001) is required.

When an A/B-phase pulse generator of differential type is used

FANUC SERVO
External pulse AMPLIFIER
generator K22 β series
(differential JA34
output)

When a manual pulse generator available from FANUC is used

Manual pulse FANUC SERVO
generator AMPLIFIER
Manual pulse adapter βseries
K23 K24
generator JA54 JA55 JA34

- 293 -
11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE) CONNECTION B-65232EN/03

11.1 CONNECTION WHEN AN A/B-PHASE PULSE

GENERATOR OF DIFFERENTIAL TYPE IS USED

11.1.1 K22 Cable Connection

β series amplifier K22 External pulse generator

JA34

PA (1) PA

*PA (2) *PA

PB (3) PB

*PB (4) *PB

+5V (9) +5V

+5V (18) +5V

+5V (20) +5V
0V (12) 0V

0V (14) 0V
0V (16) 0V

Connector : FI40-2015S (Hirose Electric)

Case : FI-20-CV (Hirose Electric)

Cable specification : Conductor 20/0.18×6, 7/0.18×3 pairs

Recommended cable : A66L-0001-0286(#20AWG×6 + #24AWG×6 +
#24AWG×3 pairs)

NOTE
1 The servo unit can supply power to a unit requiring
up to +5V, 0.35A. In this case, consider the power
supply voltage drop across the cable resistance.
2 Use the same twisted wire pair for the PA and *PA
signals. Also use the same twisted wire pair for the
PB and *PB signals.
3 Do not make any connection to the pins other than
those shown above. Do not connect an unused
conductor of the cable.
4 Maximum wire length: 50m

- 294 -
B-65232EN/03 CONNECTION 11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE)

11.2 CONNECTION WHEN A MANUAL PULSE GENERATOR

AVAILABLE FROM FANUC IS USED

11.2.1 K23 Cable Connection

The K23 cable is a signal cable for connecting a manual pulse

generator with a manual pulse generator adapter (JA54).

Manual pulse generator adapter

JA54
Manual pulse generator Connector : FI40-2015S
(PCR-EV20MDT)
Case : FI-20-CV 1 HA1 11
(M3 screw terminal)
2 HB1 12 0V
3 (HA2) 13
+5V 0V A B K23 4 (HB2) 14 0V
+5V 0V HA1 HB1 5 15
6 16 0V
7 17
8 18 +5V
9 +5V 19
10 20 +5V

Cable connection(K23)

Manual pulse generator

JA54
A 1
HA1 HA1
B 2
#24AWG
HB1 HB1
+5V 9,18,20
+5V +5V
0V 12,14,16
#20AWG
0V 0V
Shield

Recommended wire : A66L-0001-0286 (#20AWG × 6 + #24AWG ×

3 pairs)
Recommended connector (on the JA54 side): A02B-0120-K303
Recommended cable : A02B-0259-K821 (7 m). When using the cable,
rewrite the connector name.

The maximum allowable length is 50 m. However, another limitation

based on a power supply voltage drop is imposed as described below.

Limitation based on a power supply voltage drop

Suppress the power supply voltage drop due to cable resistance to 0.2
V or less (sum of the 0V and 5V lines).

- 295 -
11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE) CONNECTION B-65232EN/03

For calculation, assume that the power supply current of the manual
pulse generator is 0.1 A.

When making a calculation, include the length of the K24 cable in the
cable length.

To one manual pulse generator, multiple (up to six) units of the

FANUC servo amplifier unit β series can be connected. In this case,
prepare one manual pulse generator adapter for each unit of the
FANUC servo amplifier unit β series. A unit of the FANUC servo
amplifier unit β series can be connected with a manual pulse
generator adapter in the same way as described in Subsection 8.2.2,
"K24 Cable Connection ". JA54(3) and JA54(4) are signals used to
connect multiple units of the FANUC servo amplifier unit β series.
For details, refer to Subsection 8.1.3, "Connection with Multiple
Power Mate Units" in "FANUC Power Mate-MODEL E Connection
and Maintenance Manual (B-62115E)". One unit of the FANUC servo
amplifier unit β series connected with a manual pulse generator
adapter via cable K24 corresponds to one Power Mate unit.

- 296 -
B-65232EN/03 CONNECTION 11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE)

11.2.2 K24 Cable Connection

The K24 cable is a signal cable for connecting a manual pulse

generator adapter (JA55) with the FANUC servo amplifier unit β
series (JA34).

FANUC SERVO AMPLIFIER

β series
Manual pulse generator adapter
JA55 JA34
(PCR-EV20MDT) (PCR-EV20MDT)
1 PA 11 1 PA 11
2 *PA 12 0V 2 *PA 12 0V
3 *PB 13 3 PB 13
4 *PB 14 0V 4 *PB 14 0V
5 15 K24 5 15
6 16 0V 6 16 0V
7 17 7 17
Connector : FI40-2015S
8 18 +5V 8 18 +5V
9 +5V 19 Case : FI-20-CV 9 +5V 19
10 20 +5V 10 20 +5V

Cable connection (K24)

JA55 JA34
PA 1 1
PA
*PA 2 2
*PA
#24AWG
PB 3 3
PB
*PB 4 4
*PB
+5V 9 9
+5V
+5V 18 18
+5V
+5V 20 20
+5V
#20AWG
0V 12 12
0V
0V 14 14
0V
0V 16 16
0V
Shield

Recommended wire : A66L-0001-0286(#20AWG × 6 + #24AWG ×

×3 pairs)
Recommended connector : A02B-0120-K303
Maximum wire length : Up to 5 m

- 297 -
11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE) CONNECTION B-65232EN/03

11.2.3 Manual Pulse Generator Adapter

External view

Weight : Approx. 100g

Installation condition
The manual pulse generator adapter does not have a closed structure.
So, install a manual pulse generator adapter in a closed cabinet similar
to a one used for the FANUC servo amplifier β series (I/O Link
option).
The manual pulse generator adapter has two φ3.6 holes. When
securing a manual pulse generator adapter, use these holes.
The manual pulse generator adapter is light. So, when securing a
manual pulse generator adapter, it need not always be screwed.
However, ensure that a manual pulse generator adapter is not short-
circuited to another electric circuit.
Connect the case to ground by using a case mounting screw of the
manual pulse generator adapter.

- 298 -
B-65232EN/03 CONNECTION 11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE)

- Operating condition
The maximum allowable frequency of an input signal is 100 kHz.

1) Plus-direction move command pulses

PA
*PA

PB
*PB
Tp
Tp Tp Tp

Tcyc
2) Minus-direction move command pulses
PA
*PA

PB
*PB

Tp Tp Tp Tp
Tp : 1.2 µsec or more
Tcyc Tcyc : 10 µsec or more

3) Sequence
External input PA

pulse
PB

β series
+ pulses
(I/O Link option)
Internal output - pulses

- 299 -
11.EXTERNAL PULSE INPUT (ONLY FOR I/O Link INTERFACE) CONNECTION B-65232EN/03

- Example of recommended circuit

β series
External pulse generator

SN75113 or equivalent Receiver circuit

5 4,3 PA
PA 6

7 *PA
9 1,2
10
11
12,13
PB

*PB
14,15

The numbers indicate

the pin numbers of
SN75113. 12,14,16

- 300 -
B-65232EN/03 INDEX

INDEX
Connector ............................................................... 39, 140
<A>
CONNECTOR ALLOCATION DIAGRAM OF
ABSOLUTE-TYPE PULSE CODER............................. 47
β AMPLIFIERS (SVU40, SVU-80)....................... 263
AC Line Filter....................................................... 139, 196
CONNECTOR LOCATIONS FOR β SERIES
ACCEPTANCE AND STORAGE.................................. 18
AMPLIFIER........................................................... 220
Amplifiers Suitable for the β series Servo Motors............ 7
CONNECTORS.............................................................. 56
Amplifiers Suitable for the βM series Servo Motors ........ 5
Cooling Method (IEC34-6) ............................................ 42
APPROVAL SPECIFICATIONS................................... 41
COUPLING .................................................................... 11
AXIS LOAD................................................................... 13
<D>
<B>
Data Items to be Entered................................................. 27
Battery Case.................................................................. 203
Data Sheet....................................................................... 36
Blanks for Those Other than Data .................................. 26
DERATING.................................................................. 143
BRAKE SPECIFICATIONS .......................................... 51
DETAILS OF CABLE CONNECTIONS ............. 231, 271
BUILT-IN BRAKE......................................................... 50
DETECTOR SIGNAL OUTPUT.................................... 49
BUILT-IN DETECTOR ................................................. 46
DIMENSIONS INCLUDING CABLES............... 227, 267
<C> DRIVE SHAFT COUPLING.......................................... 20
Cable Clamp and Shield Processing ............................. 175 Drive Unit ....................................................................... 39
Cases Where a Separated Regenerative Discharge
<E>
Unit Is Not Required .............................................. 150
Electromagnetic Contactor Rating ................................ 139
Cases Where a Separated Regenerative Discharge
EMC DIRECTIVE.......................................................... 44
Unit Is Required ..................................................... 152
ENVIRONMENT ........................................................... 14
CAUTIONS FOR CONFIGURING AN EMERGENCY
ENVIRONMENTAL CONDITIONS........................... 169
STOP CIRCUIT ..................................................... 187
ESP Signal in Using a Servo Check Pin Board ............ 247
CAUTIONS FOR SAFETY STANDARDS RELATED TO
ESP Signal Using More than One β Amplifier............. 246
AMPLIFIER INSTALLATION ............................. 181
EXTERNAL POSITION DETECTOR........................... 48
CHARACTERISTIC CURVE AND DATA SHEET
EXTERNAL PULSE INPUT (ONLY FOR I/O Link
...................................................................... 35, 75, 98
INTERFACE)......................................................... 293
Characteristic Curves...................................................... 35
Circuit Breaker Rating.................................................. 137 <F>
CIRCUIT BREAKER, ELECTROMAGNETIC FANUC I/O Link CONNECTION (FOR I/O Link
CONTACTOR, AND AC LINE FILTER .............. 137 INTERFACE ONLY)............................................. 283
COMPATIBLE AMPLIFIERS......................................... 5 FANUC I/O Link CONNECTION VIA ELECTRIC
CONFIGURATION...................................................... 114 CABLE................................................................... 285
CONNECTION OF BUILT-IN DI (FOR I/O Link FANUC I/O Link CONNECTION VIA OPTICAL
INTERFACE ONLY)............................................. 288 CABLE................................................................... 287
CONNECTION OF THE BRAKES ............................... 53 FEEDBACK DETECTOR.............................................. 45
CONNECTION WHEN A MANUAL PULSE FIGURES OF CONNECTORS ...................................... 52
GENERATOR AVAILABLE FROM FANUC IS FOR FSSB Interface or PWM Interface ....................... 245
USED ..................................................................... 295 For SVU-20 .................................................................. 143
CONNECTION WHEN AN A/B-PHASE PULSE FOR SVU-4, SVU-12, AND SVU-20 .......................... 150
GENERATOR OF DIFFERENTIAL TYPE IS For SVU-40 and SVU-80 ..................................... 144, 154
USED ..................................................................... 294 FSSB INTERFACE ...................................................... 115

i-1
INDEX B-65232EN/03

FSSB INTERFACE ...................................................... 264 K3 CABLE CONNECTION................................. 239, 274

FSSB INTERFACE (SVU4, SVU-12, SVU-20) K4 CABLE CONNECTION................................. 240, 275
................................................................ 214, 221, 228 K5 CABLE CONNECTION......................................... 245
FSSB INTERFACE (SVU40, SVU-80) ............... 257, 268 K7 AND K8 CABLES CONNECTION ....................... 276
K7 CABLE CONNECTION......................................... 248
<G>
K8 CABLE CONNECTION......................................... 249
Grounding..................................................................... 173
K9 CABLE CONNECTION......................................... 250
<H>
<L>
HEAT DISSIPATION .................................................. 167
LIST OF SIGNALS ...................................................... 290
Heat Protection (IEC34-11)............................................ 43
High-Speed Skip Signal Input Specification ................ 292 <M>
HOW TO SELECT A TRANSFORMER ..................... 166 MACHINE MOVEMENT PER 1 REVOLUTION OF
How to Use Overload Duty Curves ................................ 37 MOTOR SHAFT ...................................................... 23
MAINTENANCE AREA.............................................. 207
<I>
Manual Pulse Generator Adapter.................................. 298
I/O Link INTERFACE.................................................. 119
METHOD OF CONNECTING THE FAN MOTOR.... 127
I/O Link INTERFACE (SVU4, SVU-12, SVU-20)
MOTOR SELECTION ................................................... 26
................................................................ 216, 222, 229
I/O Link INTERFACE (SVU-40, SVU-80) <N>
................................................................ 265, 269, 259 NOISE PROTECTION................................................. 171
IEC34 STANDARD ....................................................... 38 Noise Suppressor .......................................................... 174
INPUT POWER SUPPLY............................................ 163 NORMAL OPERATING MODE ................................. 148
INPUT SIGNAL SPECIFICATION............................. 289 Notes on Regenerative Discharge Unit Installation ...... 156
INSTALLATION ........................................................... 10 NOTES ON USE .............................................................. 4
INSTALLATION CONDITIONS AND NOTES ......... 168
<O>
Installation Method (IEC34-7) ....................................... 43
OTHER CABLE CONNECTIONS .............................. 282
INSTALLING LIGHTNING SURGE ABSORBERS .. 178
OUTLINE DRAWINGS......................................... 82, 105
INSTRUCTIONS ........................................................... 19
OUTLINE DRAWINGS AND MAINTENANCE
<K> CLEARANCES ...................................................... 193
K1 CABLE CONNECTION (ONLY FOR PWM OUTLINE DRAWINGS AND PANEL CUT-OUT
INTERFACE)......................................................... 232 DRAWINGS........................................................... 194
K1 CABLE CONNECTION (ONLY FOR PWM Output (IEC34-1)............................................................ 41
INTERFACE)......................................................... 272
<P>
K10 CABLE CONNECTION....................................... 252
PANEL CUT-OUT DRAWINGS ................................. 204
K12 CABLE CONNECTION....................... 253, 280, 281
PIN ASSIGNMENT OF CONNECTOR CX11 (SVU4,
K13 CABLE CONNECTION....................................... 254
SVU-12, SVU-20).................................................. 224
K14 CABLE CONNECTION............................... 255, 278
POWER SUPPLY ........................................................ 162
K15 CABLE CONNECTION....................................... 279
POWER SUPPLY RATINGS ...................................... 164
K2 CABLE CONNECTION......................................... 235
Power Transformer for Export...................................... 199
K2 CABLE CONNECTION (ONLY FOR PWM
POWER TRANSFORMER FOR EXPORTS............... 165
INTERFACE)......................................................... 273
PROTECTION AGAINST SHOCK HAZARDS ......... 184
K22 Cable Connection ................................................. 294
PROTECTION AND ABNORMALITY DETECTION
K23 Cable Connection ................................................. 295
FUNCTIONS.......................................................... 146
K24 Cable Connection ................................................. 297
Protection Mode (IEC34-5) ............................................ 42

i-2
B-65232EN/03 INDEX

PROTECTIVE GROUND WIRE CONNECTION ...... 189 Specifications of βM0.4 to βM1 Connectors for
PROTECTIVE GROUNDING..................................... 186 Signal........................................................................ 63
PWM INTERFACE...................................................... 123 SPEED-TORQUE CHARACTERISTICS FOR HRV
PWM INTERFACE (SVU4, SVU-12, SVU-20) CONTROL ............................................................. 103
................................................................ 218, 223, 230 SPEED-TORQUE CHARACTERISTICS WHEN HRV1
PWM INTERFACE (SVU40, SVU-80)....... 261, 266, 270 CONTROL AND AN I/O Link β AMPLIFIER ARE
USED ....................................................................... 81
<R>
STANDARD CATEGORIES RELATED TO
REQUIREMENTS FOR COMPLIANCE ...................... 39
INSULATION DESIGN......................................... 183
Rotational Speed (IEC34-1) ........................................... 41
SUPPRESSING ELECTROMAGNETIC
<S> INTERFERENCE................................................... 188
SELECTING A GROUND FAULT INTERRUPTER.. 170 SVU-4, SVU-12, SVU-20 (Single-phase Power Input)
SELECTING A MOTOR ............................................... 24 ........................................ 116, 120, 124, 115, 119, 123
SEPARATED REGENERATIVE DISCHARGE UNIT149 SVU-4/12/20 (I/O Link Interface) ................................ 190
Separated Regenerative Discharge Unit................ 200, 205 SVU-4/12/20 (PWM Interface) .................................... 189
SEPARATION OF SIGNAL LINES............................ 171 SVU40, SVU-80........................................................... 204
Servo Amplifier Unit SVU-4,SVU-12,SVU-20 (FSSB SVU-40, SVU-80 (Single-phase Power Input)
Interface) ................................................................ 194 ................................................................ 118, 122, 126
Servo Amplifier Unit SVU-40,SVU-80 (FSSB Interface) SVU-40, SVU-80 (Three-phase Power Input)
................................................................................ 195 ................................................................ 117, 121, 125
SIGNAL CONNECTION WITH THE POWER SVU-40/80 (FSSB Interface)........................................ 191
MAGNETICS CABINET....................................... 291 SVU-40/80 (I/O Link Interface) ................................... 192
Single-phase Input (SVU4, SVU-12, SVU-20)
<T>
................................................................ 215, 217, 219
Three-phase Input ......................................... 214, 216, 218
Single-phase Input for Control Power .......................... 163
Three-phase Input Power Supply for Motor Power ...... 163
Single-phase Input Power Supply for Motor Power ..... 163
Three-phase Input Power Supply Ratings for Motor Power
Single-phase Power Input............................. 258, 260, 262
................................................................................ 164
SKIP SIGNAL INTERFACE ....................................... 292
Three-phase Power Input .............................. 257, 259, 261
Specification ................................................. 165, 141, 142
TOTAL CONNECTION DIAGRAM ................... 213, 256
SPECIFICATIONS AND CHARACTERISTICS .... 73, 96
TYPE OF MOTORS AND SPECIFICATIONS....... 74, 97
SPECIFICATIONS OF MOTOR CONNECTORS ........ 57
TYPES OF MOTORS AND DESIGNATION ......... 71, 95
Specifications of β1 to β6 Connectors for Power and Brake
(Not TÜV-compliant and Non-waterproof Type)..... 67 <U>
Specifications of β1 to β6 Connectors for Power and Brake UNIT TYPES AND SPECIFICATIONS...................... 128
(Not TÜV-compliant and Waterproof Type)............ 66
<W>
Specifications of β1 to β6 Connectors for Power and Brake
When a Regenerative Resistor Is Used ......................... 226
(TÜV-certified and Waterproof Type)...................... 64
When No Regenerative Resistor Is Used ...................... 225
Specifications of β1 to β6 Connectors for Signal........... 68
When Regenerative Discharge Unit is not Used ... 248, 249
Specifications of βM0.2 and βM0.3 Connectors for
When Regenerative Discharge Unit is Used ......... 248, 249
Power and Brake ...................................................... 59
Specifications of βM0.2 and βM0.3 Connectors for Signal <β >
.................................................................................. 60 β1 TO β6 CONNECTORS ON CABLE SIDE............... 64
Specifications of βM0.4 to βM1 Connectors for βM0.2 AND βM0.3 CONNECTORS ON CABLE SIDE59
Power and Brake ...................................................... 62 βM0.4 TO βM1 CONNECTORS ON CABLE SIDE..... 62

i-3
 Revision Record

FANUC SERVO MOTOR β series DESCRIPTIONS (B-65232EN)

03 Oct., 2002 - Total revision

- Addition of model β0.5

02 Aug., 1997
- Addition of β series amplifier for I/O Link option

01 Mar., 1996

Edition Date Contents Edition Date Contents

• No part of this manual may be
reproduced in any form.

• All specifications and designs

are subject to change without
notice.