Getting Started Guide

Commander SK
Model sizes 2 to 6

AC variable speed drive for

3 phase induction motors

Issue: 7
General Information
The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or
incorrect installation or adjustment of the optional operating parameters of the equipment or from
mismatching the variable speed drive with the motor.
The contents of this guide are believed to be correct at the time of printing. In the interests of a commitment
to a policy of continuous development and improvement, the manufacturer reserves the right to change the
specification of the product or its performance, or the contents of the guide, without notice.
All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means,
electrical or mechanical including photocopying, recording or by an information storage or retrieval system,
without permission in writing from the publisher.
Drive software version
This product is supplied with the latest software version. If this drive is to be connected to an existing system
or machine, all drive software versions should be verified to confirm the same functionality as drives of the
same model already present. This may also apply to drives returned from a EPA Service
Centre or Repair Centre. If there is any doubt please contact the supplier of the product.
The software version of the drive can be checked by looking at Pr 11.29 and Pr 11.34. This takes the form
of xx.yy.zz where Pr 11.29 displays xx.yy and Pr 11.34 displays zz. (e.g. for software version 01.01.00,
Pr 11.29 = 1.01 and Pr 11.34 displays 0).
Environmental statement
EPA is committed to minimising the environmental impacts of its manufacturing operations
and of its products throughout their life cycle. To this end, we operate an Environmental Management
System (EMS) which is certified to the International Standard ISO 14001. Further information on the EMS,
our Environmental Policy and other relevant information is available on request, or can be found at
www.greendrives.com.
The electronic variable-speed drives manufactured by EPA have the potential to save
energy and (through increased machine/process efficiency) reduce raw material consumption and scrap
throughout their long working lifetime. In typical applications, these positive environmental effects far
outweigh the negative impacts of product manufacture and end-of-life disposal.
Nevertheless, when the products eventually reach the end of their useful life, they must not be discarded
but should instead be recycled by a specialist recycler of electronic equipment. Recyclers will find the
products easy to dismantle into their major component parts for efficient recycling. Many parts snap
together and can be separated without the use of tools, whilst other parts are secured with conventional
fasteners. Virtually all parts of the product are suitable for recycling.
Product packaging is of good quality and can be re-used. Large products are packed in wooden crates,
while smaller products come in strong cardboard cartons which themselves have a high recycled fibre
content. If not re-used, these containers can be recycled. Polythene, used on the protective film and bags
for wrapping product, can be recycled in the same way. EPAs' packaging strategy prefers
easily-recyclable materials of low environmental impact, and regular reviews identify opportunities for
improvement.
When preparing to recycle or dispose of any product or packaging, please observe local legislation and
best practice.
REACH legislation
EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals
(REACH) requires the supplier of an article to inform the recipient if it contains more than a specified
proportion of any substance which is considered by the European Chemicals Agency (ECHA) to be a
Substance of Very High Concern (SVHC) and is therefore listed by them as a candidate for compulsory
authorisation.
For current information on how this requirement applies in relation to specific EPA products,
please approach your usual contact in the first instance. EPA position statement can be
viewed at:
http://www.epa-antriebe.de

Issue Number: 7
Software: 01.08.01 onwards
 Contents
1 Safety Information .............................................................. 5
2 Product Information ........................................................... 8
2.1 Ratings .................................................................................................... 8
2.2 Typical short term overload limits ............................................................ 9
2.3 Rating Data ........................................................................................... 10
2.4 Accessories supplied with the drive ...................................................... 18
3 Mechanical Installation .................................................... 19
3.1 Removing the terminal covers ............................................................... 19
3.2 Mounting methods ................................................................................. 21
3.3 Mounting brackets ................................................................................. 26
3.4 Enclosure .............................................................................................. 28
3.5 Electrical terminals ................................................................................ 29
4 Electrical Installation ........................................................ 31
4.1 Power connections ................................................................................ 31
4.2 Heatsink fan .......................................................................................... 36
4.3 Ground leakage ..................................................................................... 38
4.4 EMC (Electromagnetic compatibility) .................................................... 40
4.5 Control terminals I/O specification ........................................................ 41
5 Keypad and Display .......................................................... 46
5.1 Programming keys ................................................................................ 46
5.2 Control keys .......................................................................................... 46
5.3 Selecting and changing parameters ...................................................... 47
5.4 Saving parameters ................................................................................ 48
5.5 Parameter access ................................................................................. 48
5.6 Security codes ....................................................................................... 48
5.7 Setting drive back to default values ...................................................... 49
6 Parameters ........................................................................ 50
6.1 Parameter descriptions - Level 1 .......................................................... 50
6.2 Parameter descriptions - Level 2 .......................................................... 57
6.3 Parameter descriptions - Level 3 .......................................................... 67
6.4 Diagnostic parameters .......................................................................... 67
7 Quick start commissioning .............................................. 68
7.1 Terminal control .................................................................................... 68
7.2 Keypad control ...................................................................................... 70
8 Diagnostics ....................................................................... 72
9 Options .............................................................................. 75
10 UL listing information ....................................................... 77
10.1 Common UL information ....................................................................... 77
10.2 Power dependant UL information .......................................................... 77
10.3 AC supply specification ......................................................................... 78
10.4 Maximum continuous output current ..................................................... 78
10.5 Safety label ........................................................................................... 78

Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 Declaration of Conformity
EPA

SK2201 SK2202 SK2203 SK2401 SK2402 SK2403 SK2404

SK3201 SK3202 SK3401 SK3402 SK3403
SK3501 SK3502 SK3503 SK3504 SK3505 SK3506 SK3507
SK4201 SK4202 SK4203 SK4401 SK4402 SK4403
SK4601 SK4602 SK4603 SK4604 SK4605 SK4606
SK5401 SK5402 SK5601 SK5602
SK6401 SK6402 SK6601 SK6602
The AC variable speed drive products listed above have been designed and manufactured in
accordance with the following European harmonized standards:

Adjustable speed electrical power drive systems - safety requirements

EN 61800-5-1:2007
- electrical, thermal and energy
Adjustable speed electrical power drive systems. EMC product
EN 61800-3:2004
standard including specific test methods
Electromagnetic compatibility (EMC). Generic standards. Immunity
EN 61000-6-2:2005
standard for industrial environments
Electromagnetic compatibility (EMC). Generic standards. Emission
EN 61000-6-4:2007*
standard for industrial environments
Electromagnetic compatibility (EMC). Limits. Limits for harmonic
EN 61000-3-2:20061** current emissions (equipment input current up to and including 16 A
per phase)
Electromagnetic compatibility (EMC). Limits. Limitation of voltage
EN 61000-3-3:2008** fluctuations and flicker in low-voltage supply systems for equipment
with rated current <= 16 A

* Applicable to sizes 2 to 4 only.

** Applicable to size 2 only.
1These products are for professional use, and power input exceeds 1kW for all models, so no limits
apply.
These products comply with the Low Voltage Directive 2006/95/EC and the Electromagnetic
Compatibility Directive 2004/108/EC.
T. Alexander
Executive VP Technology
Date: 26th May 2009

These electronic drive products are intended to be used with appropriate motors,
controllers, electrical protection components and other equipment to form complete end
products or systems. Compliance with safety and EMC regulations depends upon installing
and configuring drives correctly, including using the specified input filters. The drives must
be installed only by professional assemblers who are familiar with requirements for safety
and EMC. The assembler is responsible for ensuring that the end product or system
complies with all the relevant laws in the country where it is to be used. Refer to the
Technical Data Guide. An EMC Data Sheet is also available giving detailed EMC information.

4 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
1.4 Environmental limits
Instructions within the supplied data and information within the Commander SK
Technical Data Guide regarding transport, storage, installation and the use of the drive
must be complied with, including the specified environmental limits. Drives must not be
subjected to excessive physical force.

1.5 Access
Access must be restricted to authorized personnel only. Safety regulations which apply
at the place of use must be complied with.
The IP (Ingress Protection) rating of the drive is installation dependant. For further
information, refer to the Commander SK Technical Data Guide.

1.6 Fire protection

The drive enclosure is not classified as a fire enclosure. A separate fire enclosure must
be provided.

1.7 Compliance with regulations

The installer is responsible for complying with all relevant regulations, such as national
wiring regulations, accident prevention regulations and electromagnetic compatibility
(EMC) regulations. Particular attention must be given to the cross-sectional areas of
conductors, the selection of fuses and other protection, and protective ground (earth)
connections.
The Commander SK Technical Data Guide contains instructions for achieving
compliance with specific EMC standards.
Within the European Union, all machinery in which this product is used must comply
with the following directives:
2006/42/EC: Safety of machinery
2004/108/EC: Electromagnetic compatibility

1.8 Motor
Ensure the motor is installed in accordance with the manufacturer's recommendations.
Ensure the motor shaft is not exposed.
Standard squirrel cage induction motors are designed for single speed operation. If it is
intended to use the capability of a drive to run a motor at speeds above its designed
maximum, it is strongly recommended that the manufacturer is consulted first.
Low speeds may cause the motor to overheat because the cooling fan becomes less
effective. The motor should be installed with a protection thermistor. If necessary, an
electric force vent fan should be used.
The values of the motor parameters set in the drive affect the protection of the motor.
The default values in the drive should not be relied upon.
It is essential that the correct value is entered into parameter 06, motor rated current.
This affects the thermal protection of the motor.

1.9 Adjusting parameters

Some parameters have a profound effect on the operation of the drive. They must not
be altered without careful consideration of the impact on the controlled system.
Measures must be taken to prevent unwanted changes due to error or tampering.

6 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
1.10 Electrical installation

Information
1.10.1 Electric shock risk

Safety
The voltages present in the following locations can cause severe electric shock and may
be lethal:
• AC supply cables and connections
• DC bus, dynamic brake cables and connections

Information
Product
• Output cables and connections
• Many internal parts of the drive, and external option units
Unless otherwise indicated, control terminals are single insulated and must not be
touched.
1.10.2 Isolation device

Mechanical
Installation
The AC supply must be disconnected from the drive using an approved isolation device
before any cover is removed from the drive or before any servicing work is performed.
1.10.3 STOP function
The STOP function does not remove dangerous voltages from the drive, the motor or

Installation
Electrical
any external option units.
1.10.4 Stored charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the
AC supply has been disconnected. If the drive has been energized, the AC supply must
be isolated at least ten minutes before work may continue.

Keypad and
Display
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual
fault conditions, it is possible that the capacitors may fail to discharge, or be prevented
from being discharged by a voltage applied to the output terminals. If the drive has failed
in a manner that causes the display to go blank immediately, it is possible the capacitors
will not be discharged. In this case, consult EPA or their authorized

Parameters
distributor.
1.10.5 Equipment supplied by plug and socket
Special attention must be given if the drive is installed in equipment which is connected
to the AC supply by a plug and socket. The AC supply terminals of the drive are

commissioning
Quick start
connected to the internal capacitors through rectifier diodes which are not intended to
give safety isolation. If the plug terminals can be touched when the plug is disconnected
from the socket, a means of automatically isolating the plug from the drive must be used
(e.g. a latching relay).
1.10.6 Ground leakage current
Diagnostics

The drive is supplied with an internal EMC filter capacitor installed. If the input voltage to
the drive is supplied through an ELCB or RCD, these may trip due to the ground
leakage current. See section 4.3.1 Internal EMC filter on page 38 for further information
and how to disconnect the internal EMC capacitor.

1.11 Mechanical installation

Options

1.11.1 Lifting the drive

The weights of the model sizes 4, 5 and 6 are as follows:
Size 4: 30kg (66Ibs)
information
UL listing

Size 5: 55kg (121Ibs)

Size 6: 75kg (165Ibs)
Use appropriate safeguards when lifting these models.

Commander SK Size 2 to 6 Getting Started Guide 7

Issue Number: 7
2 Product Information
2.1 Ratings
Commander SK sizes 2 to 6 are dual rated.
Available output
The setting of the motor rated current determines current Overload limit -
Heavy Duty
which rating applies - Heavy Duty or Normal Duty. Maximum Overload limit -
The two ratings are compatible with motors continuous
current (above
Normal Duty
designed to IEC 60034. 50% base
speed) -
The following graph illustrates the difference Normal Duty

between Normal Duty and Heavy Duty with respect Maximum

continuous
to continuous current rating and short term current -
Heavy Duty
overload limits.

Motor rated
current set
in the drive
Heavy Duty - with high Normal Duty
overload capability

Normal Duty Heavy Duty (default)

For applications which use self ventilated induction For constant torque applications or applications
motors and require a low overload capability (e.g. which require a high overload capability (e.g. cranes,
fans, pumps). hoists).
Self ventilated induction motors require increased The thermal protection is set to protect force
protection against overload due to the reduced ventilated induction motors by default.
cooling effect of the fan at low speed. To provide NOTE
the correct level of protection the I2t software If the application uses a self ventilated motor and
operates at a level which is speed dependent. This increased thermal protection is required for speeds
is illustrated in the graph below. below 50% base speed, then this can be enabled by
setting Pr 4.25 = 1.
NOTE
The speed at which the low speed protection takes See Menu 4 in the Commander SK Advanced User
effect can be changed by the setting of Pr 4.25. Guide for further details.
The protection starts when the motor speed is
below 15% of base speed when Pr 4.25 = 0
(default) and below 50% when Pr 4.25 = 1.
See Menu 4 in the Commander SK Advanced User
Guide for further details.

8 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 Figure 3-3 Removing the finger-guard and DC terminal cover break-outs

1 1
1 Sizes 4 to 6
only
All sizes Size 3
only

2
2 2

Place finger-guard on a solid flat surface and hit relevant break-outs with hammer as
shown (1). Continue until all required break-outs are removed (2). Remove any sharp
edges once break-outs are removed.
Figure 3-4 Size 4 to 6 finger-guard grommets

Single cable entry grommet Double cable entry grommet

The grommets are available as a kit of four grommets under the following part numbers:
9500-0074 Kit of four single entry grommets
9500-0075 Kit of four double entry grommets
If the break-outs are removed from the finger-guard, then the grommets are required for
Commander SK size 4 to 6 to meet the IP20 standard.

20 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
6 Parameters
Parameters are grouped together into appropriate subsets as follows:
Level 1
Pr 01 to Pr 10: Basic drive set-up parameters
Level 2
Pr 11 to Pr 12: Drive operation set-up parameters
Pr 15 to Pr 21: Reference parameters
Pr 22 to Pr 29: Display / keypad configuration
Pr 30 to Pr 33: System configuration
Pr 34 to Pr 36: Drive user I/O configuration
Pr 37 to Pr 42: Motor configuration (non-standard set-up)
Pr 43 to Pr 44: Serial communications configuration
Pr 45: Drive software version
Pr 46 to Pr 51: Mechanical brake configuration
Pr 52 to Pr 54: Fieldbus configuration
Pr 55 to Pr 58: Drive trip log
Pr 59 to Pr 60: PLC ladder programming configuration
Pr 61 to Pr 70: User definable parameter area
Level 3
Pr 71 to Pr 80: User definable parameter set-up
Pr 81 to Pr 95: Drive diagnostics parameters
These parameters can be used to optimise the set-up of the drive for the application.

6.1 Parameter descriptions - Level 1

No Function Range Defaults Type
01 Minimum set speed 0 to Pr 02 Hz 0.0 RW
Used to set the minimum speed at which the motor will run in both directions.
(0V reference or minimum scale current input represents the value in Pr 01).

No Function Range Defaults Type

02 Maximum set speed 0 to 1500 Hz Eur: 50.0, USA: 60 0 RW
Used to set the maximum speed at which the motor will run in both directions.
If Pr 02 is set below Pr 01, Pr 01 will be automatically set to the value of Pr 02. (+10V
reference or full scale current input represents the value in Pr 02).

NOTE The output speed of the drive can exceed the value set in Pr 02 due to slip compensation
and current limits.

No Function Range Defaults Type

03 Acceleration rate Eur: 5.0, USA: 33 0
0 to 3200.0 s/100Hz RW
04 Decelera ion rate Eur: 10.0, USA: 33 0
Sets the acceleration and deceleration rate of the motor in both directions in seconds/
100Hz.

NOTE If one of the standard ramp modes is selected (see Pr 30 on page 60), the deceleration
rate could be extended automatically by the drive to prevent over voltage (OV) trips if
the load inertia is too high for the programmed deceleration rate.

50 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 Safety Information
NOTE If the motor is not a standard 50 or 60Hz motor, see Pr 39 on page 63 and adjust
accordingly.

No Function Range Defaults Type

09 Motor power factor 0 to 1 0.85 RW
Enter the motor rated power factor cos ϕ (taken from the motor name plate).

Information
Product
NOTE The power factor value could be automatically changed after a rotating autotune. See
Pr 38 on page 63.

No Function Range Defaults Type

Mechanical
Installation
10 Parameter access L1, L2, L3, LoC L1 RW
L1: Level 1 access - only the first 10 parameters can be accessed
L2: Level 2 access - All parameters from 01 to 60 can be accessed
L3: Level 3 access - All parameters from 01 to 95 can be accessed
LoC: Used to lock a security code in the drive. See section 5.6 Security codes on

Installation
Electrical
page 48 for further details.

6.2 Parameter descriptions - Level 2

No Function Range Defaults Type

Keypad and
11 Start/Stop logic select 0 to 6 Eur: 0, USA: 4 RW

Display
Pr 11 Terminal B4 Terminal B5 Terminal B6 Latching
0 Enable Run Forward Run Reverse No
1 /Stop Run Forward Run Reverse Yes

Parameters
2 Enable Run Forward / Reverse No
3 /Stop Run Forward / Reverse Yes
4 /Stop Run Jog Yes
5 User programmable Run Forward Run Reverse No
6 User Programmable User Programmable User Programmable User Programmable

commissioning
Quick start
NOTE A change to Pr 11 is set by pressing the M MODE key on exit from parameter edit mode.
The drive must be disabled, stopped or tripped for a change to take place. If Pr 11 is
changed while the drive is running, when the M MODE key is pressed on exit from
parameter edit mode, Pr 11 will change back to its previous value.
Diagnostics

No Function Range Defaults Type

12 Brake controller enable diS, rEL, d IO, USEr diS RW
diS: Mechanical brake software disabled
rEL: Mechanical brake software enabled. Brake control via relay T5 & T6. The digital
output on terminal B3 is automatically programmed as a drive ok output.
Options

d IO: Mechanical brake software enabled. Brake control via digital output B3. The
relay outputs on terminals T5 and T6 are automatically programmed as a drive
ok output.
USEr: Mechanical brake software enabled. Brake control to be programmed by user.
The relay and digital output are not programmed. The user should programme
information
UL listing

the brake control to either the digital output or relay. The output not programmed
to the brake control can be programmed to indicate the required signal. (See
Commander SK Advanced User Guide).

Commander SK Size 2 to 6 Getting Started Guide 57

Issue Number: 7
 Safety Information
No Function Range Defaults Type
18 Preset speed 1
19 Preset speed 2 ±1500 Hz
(Limited by setting of Pr 02 0.0 RW
20 Preset speed 3 Maximum set speed)
21 Preset speed 4
Defines preset speeds 1 to 4.

Information
Product
No Function Range Defaults Type
22 Load display units Ld, A Ld RW
Ld: Active current as a % of motor rated active current
A: Drive output current per phase in Amps

Mechanical
Installation
No Function Range Defaults Type
23 Speed display units Fr, SP, Cd Fr RW
Fr: Drive output frequency in Hz
SP: Motor speed in rpm

Installation
Cd: Machine speed in customer defined units (See Pr 24).

Electrical
No Function Range Defaults Type
24 Customer defined scaling 0 to 9.999 1.000 RW
Multiplying factor on motor speed (rpm) to give customer defined units.

Keypad and
Display
No Function Range Defaults Type
25 User security code 0 to 999 0 RW
Used to set-up a user security code. See section 5.6 Security codes on page 48.

No Function Range Defaults Type

Parameters
26 Not used

No Function Range Defaults Type

27 Power up keypad reference 0, LASt, PrS1 0 RW

commissioning
0: keypad reference is zero

Quick start
LASt: keypad reference is last value selected before the drive was powered down
PrS1: keypad reference is copied from preset speed 1

No Function Range Defaults Type

28 Parameter copying no, rEAd, Prog, boot no RW
Diagnostics

no: no action
rEAd: program the drive with the contents of the SmartStick
Prog: program the SmartStick with the current drive settings
boot: SmartStick becomes read only. The contents of the SmartStick will be copied to
the drive every time the drive is powered up.
Options

NOTE Before setting boot mode, the current drive settings must be stored in the SmartStick by
using Prog mode, otherwise the drive will trip on C.Acc at power-up.
Parameter copying is initiated by pressing the M MODE key on exit from parameter edit
mode after Pr 28 has been set to rEAd, Prog or boot.
information
UL listing

NOTE If parameter copying is enabled when no SmartStick is installed in the drive, the drive will
trip on C.Acc.

Commander SK Size 2 to 6 Getting Started Guide 59

Issue Number: 7
No Function Range Defaults Type
n=0, At.SP, Lo.SP, hEAL,
35 Digital output control (terminal B3) n=0 RW
Act, ALAr, I.Lt, At.Ld, USEr
n=0: At zero speed
At.SP: At speed
Lo.SP: At minimum speed
hEAL: Drive ok
Act: Drive active
ALAr: General drive alarm
I.Lt: Current limit active
At.Ld: At 100% load
USEr: User programmable

NOTE This parameter is automatically changed by the setting of Pr 12. When Pr 12

automatically controls the setting of this parameter, this parameter cannot be changed.

NOTE A change to Pr 35 is set by pressing the M MODE key on exit from parameter edit
mode. See the Commander SK Advanced User Guide.

NOTE Terminal B3 can also be configured as a digital input, frequency output or PWM output.
Refer to the Commander SK Advanced User Guide. for more information.

No Function Range Defaults Type

36 Analog output control (terminal B1) Fr, Ld, A, Por, USEr Fr RW
Fr: Voltage proportional to motor speed
Ld: Voltage proportional to motor load
A: Voltage proportional to output current
Por: Voltage proportional to output power
USEr: User programmable

NOTE A change to Pr 36 is set by pressing the M MODE key on exit from parameter edit
mode. See the Commander SK Advanced User Guide..

No Function Range Defaults Type

37 Maximum switching frequency 3, 6, 12 3 RW
3: 3kHz
6: 6kHz
12: 12kHz
Drive size Voltage rating 3kHz 6kHz 12kHz
2 All √ √ √
SK320X √ √ √
SK3401 & SK3402 √ √ √
3
SK3403 √ √ √
SK350X √ √
4 All √ √
5 All √ √
6 All √ √

See the Commander SK Technical Data Guide for drive derating data.

62 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 No Function Range Defaults Type
42 Low frequency voltage boost 0.0 to 50.0 % Eur: 3.0, USA: 1.0 RW
Determines the boost level when Pr 41 is set to Fd or SrE.

No Function Range Defaults Type

43 Serial communications baud rate 2.4, 4.8, 9.6, 19.2, 38.4 19.2 RW
2.4: 2400 baud
4.8: 4800 baud
9.6: 9600 baud
19.2: 19200 baud
38.4: 38400 baud

No Function Range Defaults Type

44 Serial comms address 0 to 247 1 RW
Defines the unique address for the drive for the serial interface.

No Function Range Defaults Type

45 Software version 1.00 to 99.99 RO
Indicates the version of software installed to the drive.

Pr 46 to Pr 51 appear when Pr 12 is set to control a motor brake

No Function Range Defaults Type
46 Brake release current threshold 50
0 to 200 % RW
47 Brake apply current threshold 10
Defines the brake release and brake apply current thresholds as a % of motor current.
If the frequency is >Pr 48 and the current is >Pr 46, the brake release sequence is
started.
If the current is <Pr 47, the brake is applied immediately.

No Function Range Defaults Type

48 Brake release frequency 1.0
0.0 to 20.0 Hz RW
49 Brake apply frequency 2.0
Defines the brake release and brake apply frequencies.
If the current is >Pr 46 and the frequency is > Pr 48, the brake release sequence is
started.
If the frequency is <Pr 49 and the drive has been commanded to stop, the brake is
applied immediately.

No Function Range Defaults Type

50 Pre-brake release delay 0.0 to 25.0 s 1.0 RW
Defines the time between the frequency and load condition being met and the brake
being released. The ramp is held during this time.

No Function Range Defaults Type

51 Post brake release delay 0.0 to 25 0 s 1.0 RW
Defines the time between the brake being released and the ramp hold being released.

64 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 No Function Range Defaults Type
54 *Solutions Module dependant 0 RW
*See the Commander SK Advanced User Guide for further information.

No Function Range Defaults Type

55 Last trip
56 Trip before Pr 55
0 RO
57 Trip before Pr 56
58 Trip before Pr 57
Indicates the last 4 trips of the drive.

No Function Range Defaults Type

59 PLC ladder program enable 0 to 2 0 RW

The PLC ladder program enable is used to start and stop the PLC ladder program.
0: Stop the PLC ladder program
1: Run the PLC ladder program (trip drive if LogicStick is not installed). Any out-of-
range parameter writes attempted will be limited to the maximum/minimum
values valid for that parameter before being written to.
2: Run the PLC ladder program (trip drive if LogicStick is not installed). Any out-of-
range parameter writes attempted will cause the drive to trip.
See the Commander SK Advanced User Guide for details on PLC ladder programming.

No Function Range Defaults Type

60 PLC ladder program status -128 to +127 RO
The PLC ladder program status parameter indicates the actual state of the PLC ladder program.
-n: PLC ladder program caused a drive trip due to an error condition while running
rung n. Note that the rung number is shown on the display as a negative
number.
0: LogicStick is installed with no PLC ladder program
1: LogicStick is installed, PLC ladder program is installed but stopped
2: LogicStick is installed, PLC ladder program is installed and running
3: LogicStick is not installed

No Function Range Defaults Type

61 to Configurable parameter 1 to
As source
70 configurable parameter 10
Pr 61 to Pr 70 and Pr 71 to Pr 80 can be used to access and adjust advanced
parameters.
Example: It is desired that Pr 1.29 (Skip frequency 1) is to be adjusted. Set one of the
parameters Pr 71 to Pr 80 to 1.29, the value of Pr 1.29 will appear in the corresponding
parameter from Pr 61 to Pr 70. I.e. if Pr 71 is set to 1.29, Pr 61 will contain the value of
Pr 1.29 where it can be adjusted.

NOTE Some parameters are only implemented if the drive is disabled, stopped or tripped and
the STOP/RESET key is pressed for 1s.
See Commander SK Advanced User Guide for advanced parameter details.

66 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
6.3 Parameter descriptions - Level 3

Safety Information
No Function Range Defaults Type
71 to
Pr 61 to Pr 70 set up 0 to Pr 21.51 RW
80
Set Pr 71 to Pr 80 to the required advanced parameter number to be accessed.
The value within these parameters will be displayed in Pr 61 to Pr 70. Pr 61 to Pr 70 can

Information
Product
then be adjusted to change the value within a parameter.
See Commander SK Advanced User Guide for further details.
6.4 Diagnostic parameters
The following read only (RO) parameters can be used as an aid to fault diagnosis on the
drive. See Figure 8-1 Diagnostics logic diagram on page 74.

Mechanical
Installation
No Function Range Type
81 Frequency reference selected ±Pr 02 Hz RO
82 Pre-ramp reference ±Pr 02 Hz RO
83 Post-ramp reference ±Pr 02 Hz RO

Installation
Electrical
84 DC bus voltage 0 to Drive maximum Vdc RO
85 Motor frequency ±Pr 02 Hz RO
86 Motor voltage 0 to Drive rating V RO
87 Motor speed ±9999 rpm RO
88 Motor current +Drive maximum A RO
89 Motor ac ive current ±Drive maximum A RO

Keypad and
Display
90 Digital I/O read word 0 to 95 RO
91 Reference enabled indicator OFF or On RO
92 Reverse selected indicator OFF or On RO
93 Jog selected indicator OFF or On RO
94 Analog input 1 level 0 to 100 % RO

Parameters
95 Analog input 2 level 0 to 100 % RO

commissioning
Quick start
Diagnostics
Options
information
UL listing

Commander SK Size 2 to 6 Getting Started Guide 67

Issue Number: 7
 Trip code Condition Possible cause

Safety Information
Already programmed SmartStick read by a drive of a different
C.rtg SmartStick/drive ra ing change
rating
O.cL Overload on current loop input Input current exceeds 25mA
Internal drive hardware fault (see Commander SK Advanced
HFxx trip Hardware faults
User Guide)

Information
* The Enable/Reset terminal will not reset an O.Ld1 trip. Use the Stop/Reset key.

Product
** These trips cannot be reset for 10 seconds after they occur.
See the Commander SK Advanced User Guide for further information on possible
causes of drive trips.
Table 8-1 DC bus voltages

Mechanical
Installation
Drive voltage
UV trip level UV reset level * Braking level OV trip level **
rating
200V 175 215 390 415
400V 330 425 780 830

Installation
575V 435 590 930 990

Electrical
690V 435 590 1120 1190

NOTE * These are the absolute minimum DC voltages the drives can be supplied by.
** The drive will trip on OV if the DC Bus goes above the OV trip level.

Keypad and
Display
Table 8-2 Alarm warnings/Display indications
Display Condition Solution
OVL.d I x t overload (I = current, t = time) Reduce motor current (Load)
hot Heatsink/IGBT temperature high Reduce ambient temperature or reduce motor current

Parameters
See Menu 10 in the Commander SK Advanced User
br.rS Braking resistor overload
Guide
See Menu 10 in the Commander SK Advanced User
AC.Lt Drive is in current limit
Guide
An attempt was made to read the stick when the drive

commissioning
FAIL Failed attempt to read stick

Quick start
was not disabled or tripped, or the stick is read only

NOTE If no action is taken when an alarm warning appears, the drive will trip on the appropriate
fault code. Diagnostics
Options
information
UL listing

Commander SK Size 2 to 6 Getting Started Guide 73

Issue Number: 7
 Option name Function Picture
Software for PC or Laptop which allows he user to commission
CTSoft
and store parameter settings
Software for PC or Laptop which allows the user to program PLC
SyPTLite
functions within the drive
Optional internal braking resistor for Commander SK size 2 (see
Braking resistor
Commander SK Technical Data Guide for further details).

Details of all the above options can be found at www.controltechniques.com and on the
CD supplied with the drive.

76 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
 Safety Information
10 UL listing information
The UL file number is E171230. Confirmation of UL listing can be
found on the UL website: www.ul.com.

10.1 Common UL information

Information
Conformity

Product
The drive conforms to UL listing requirements only when the following are observed:
• The drive is installed in a type 1 enclosure, or better, as defined by UL50
• The ambient temperature does not exceed 40°C (104°F) when the drive is
operating

Mechanical
Installation
• The terminal tightening torques specified in section 3.5.1 Terminal sizes and torque
settings on page 30.
Motor overload protection
The drive provides motor overload protection. The default overload protection level is no
higher than 150% of full-load current (FLC) of the drive. It is necessary for the motor

Installation
rated current to be entered into Pr 06 (or Pr 5.07) for the protection to operate correctly.

Electrical
The protection level may be adjusted below 150% if required. The drive also provides
motor thermal protection, refer to Pr 4.15, Pr 4.19 and Pr 4.25 in the Commander SK
Advanced User Guide.
Overspeed protection

Keypad and
The drive provides overspeed protection. However, it does not provide the level of

Display
protection afforded by an independent high integrity overspeed protection device.

10.2 Power dependant UL information

Conformity

Parameters
The drive conforms to UL listing requirements only when the following is observed:
Fuses
Size 2 to 3
• The correct UL-listed high speed/fast acting fuses (class CC or class J up to 30A
and class J above 30A), e.g. Bussman Limitron KTK series, Gould Amp-Trap ATM

commissioning
Quick start
series or equivalent, are used in the AC supply. The drive does not comply with UL
if MCBs are used in place of fuses.
For further details on fusing, refer to section 2.3 Rating Data on page 10.
Size 4 to 6
• The UL-listed Ferraz HSJ (High speed J class) fuses are used in the AC supply. The
Diagnostics

drive does not comply with UL if any other fuses or MCBs are used in place of those
stated.
For further details on fusing, refer to section 2.3 Rating Data on page 10.
Field wiring
Size 2 to 4
• Class 1 60/75°C (140/167°F) copper wire only is used in the installation
Options

Size 5 and 6
• Class 1 75°C (167°F) copper wire only is used in the installation
Field wiring connectors
Sizes 4 to 6
information
UL listing

• UL listed wire connectors are used for terminating power circuit field wiring, e.g.
Ilsco TA series

Commander SK Size 2 to 6 Getting Started Guide 77

Issue Number: 7
10.3 AC supply specification
The Commander SK is suitable for use in a circuit capable of delivering not more than
100,000rms symmetrical Amperes at 264Vac rms maximum (200V drives), 528Vac rms
maximum (400V drives) or 600Vac rms maximum (575V and 690V drives).

10.4 Maximum continuous output current

The drive models are listed as having the maximum continuous output currents (FLC)
shown in Table 10-1, Table 10-2, Table 10-3 and Table 10-4 (see the Commander SK
Technical Data Guide for details).
Table 10-1 Maximum continuous output current (200V drives)
Model FLC (A) Model FLC (A)
SK2201 15.5 SK4201 68
SK2202 22 SK4202 80
SK2203 28 SK4203 104
SK3201 42
SK3202 54

Table 10-2 Maximum continuous output current (400V drives)

Model FLC (A) Model FLC (A)
SK2401 15.3 SK4401 68
SK2402 21 SK4402 83
SK2403 29 SK4403 104
SK2404 29 SK5401 138
SK3401 35 SK5402 168
SK3402 43 SK6401 205
SK3403 56 SK6402 236

Table 10-3 Maximum continuous output current (575V drives)

Model FLC (A) Model FLC (A)
SK3501 5.4 SK3505 16
SK3502 6.1 SK3506 22
SK3503 8.4 SK3507 27
SK3504 11

Table 10-4 Maximum continuous output current (690V drives)

Model FLC (A) Model FLC (A)
SK4601 22 SK5601 84
SK4602 27 SK5602 99
SK4603 36 SK6601 125
SK4604 43 SK6602 144
SK4605 52
SK4606 62

10.5 Safety label

The safety label supplied with the connectors and mounting brackets must be placed on
a fixed part inside the drive enclosure where it can be seen clearly by maintenance
personnel for UL compliance.
The label clearly states “CAUTION Risk of Electric Shock Power down unit 10 minutes
before removing cover”.

78 Commander SK Size 2 to 6 Getting Started Guide

Issue Number: 7
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