Cat Encoders STND
Cat Encoders STND
encoders
standard series
Technology
An encoder measures the actual machine Enclosed design
position without the effect of any The graduated scale in a linear encoder is protected by the
mechanical inaccuracies. Machine errors enclosed aluminum profile. The highly durable sealing lips
induced due to mechanical inaccuracies are protect the encoder from industrial contaminants and liquid
eliminated as the encoder is attached to the splashes as the reader head moves along the profile. The
machine guide ways and hence provides the reader head movement in complete synchronization captures
actual machine position to the controller. and transmits the position and movement of the machine.
Some of the potential sources of such errors The reader head moves along the graduated scale on linear
in a machine tool such as lead screw pitch, bearings minimizing the friction. For enhanced protection
certain amount of backlash and thermal against contamination both ends of the encoder and also the
behavior can be minimized using these reader head can be connected to pressurized air.
encoders.
LED
2
Graduated glass
Cursor
Sealing lips
Reader head
Linear encoder
Reference signals (I0)
The reference signal is a specially etched mark along the
graduated glass, which when scanned generates a pulse
signal. They are used to set/recover the machine zero
position and avoid possible errors after powering up the DRO
or CNC system.
Incremental Fagor provides two different types of reference marks I0:
• Incremental: The reference signal is synchronized with the
feedback pulses to ensure perfect measuring repeatability.
Linear: One every 50 mm of travel.
Rotary: One signal per turn.
• Distance-coded: Each distance coded reference signal
is separated from the next signal a different distance
according to predefined mathematical function. The actual
position value after power up is restored by moving through
Distances
two consecutive reference signals. This is very useful for
Series a b c d
F 50.1 50.2 50.3 100
long travel axes as the movement needed to recover actual
C, M 10.02 10.04 10.06 20 position is minimum.
Distance-coded
Rotary encoder
incremental I0
Pitch
Zero position
3
E N C O D E R S
Characteristics
Signals A, /A, B, /B, I0, / I0
Signal level VH ≥ 2.5V IH= 20 mA
VL ≤ 0.5V IL= 20 mA
With 1 m cable
90º reference signal (I0) Synchronized with A and B
Switching time t+/t-< 30ns
With 1 m cable
T period according to model
Max. cable length 50 meters
Load impedance Zo= 120 Ω between differential
No differential TTL
Characteristics
Signals A, B, /I0
Signal level A, B, I0 VH ≥ 3.5 V IH = 4 mA
VL ≤ 0.4 V IL = 4 mA
with 1 m cable
90º reference signal (I0) Synchronized with A and B
Switching time t+/t-< 30ns
with 1 m cable
T period according to model
Max. cable length 20 meters
Example
Vcc = 5V, IMAX = 0.2 Amp (with 120 Ω load)
Z (1 mm ) 2 = 16.6 Ω/Km (Lmax= 75 m)
Z (0.5 mm2) = 32 Ω/Km (Lmax= 39 m)
Z (0.25 mm2) = 66 Ω/Km (Lmax= 19 m)
Z (0.14 mm ) 2 = 132 Ω/Km (Lmax= 9 m)
Cable length
meters
4
Differential 1 Vpp
They are complementary sinusoidal signals whose differential
value is 1 Vpp centered on Vcc/2. This characteristic together
with a line termination of 120 Ω, twisted pair, and an overall
shield provide greater immunity against electromagnetic noise
caused by their surrounding environment.
Characteristics
Signals A, /A, B, /B, I0, / I0
VApp 1 V +20%, -40%
VBpp 1 V +20%, -40%
DC offset 2.5 V ± 0.5 V
Signal period according to model
Max. cable length 150 meters
A, B centered: |V1-V2| / 2 Vpp ≤ 0.065
A&B relationship VApp / VBpp 0.8 ÷ 1.25
A&B phase shift: 90° ± 10°
I0 amplitude: VI0 0.2 ÷ 0.8 V
I0 width: L + R I0_min: 180°
I0_typ: 360°
I0_max: 540°
I0 synchronism: L, R 180º ± 90º
Example
Vcc = 5V, IMAX= 0.1 Amp
Z (1 mm ) 2 = 16.6 Ω/Km (Lmax= 150 m)
Cable length Z (0.5 mm2) = 32 Ω/Km (Lmax= 78 m)
Z (0.25 mm2) = 66 Ω/Km (Lmax= 37 m)
meters
Z (0.14 mm ) 2 = 132 Ω/ Km (Lmax= 18 m)
Cable length
meters
5
I N C R E M E N T A L
F series
LINEAR
Specific characteristics
FT FX FP
FOT FOX FOP
Resolution 5 µm 1 µm Up to 0.1 µm
T period of output
20 µm 4 µm 100 µm
signals
6
Single F model Dimensions in mm
Distance-coded
Modular F model
Measuring length
Non-distance
coded Machine way
Number of
Distance-coded intermediate modules
Order identification
Example for an incremental encoder : FX - 36
F X 36
Type of profile: Type of reference mark I0: Type of signal: Ordering length code:
F: for long distances • Blank space: Incremental, one mark •T
: 5 μm resolution TTL In the example (36) = 3640 mm
every 50 mm •X
: 1 μm resolution differential TTL
• O: Distance-coded marks •P
: 1 Vpp sinusoidal
7
I N C R E M E N T A L
C series
LINEAR
Specific characteristics
CT CX CP
COT COX COP
Accuracy ± 10 μm ± 5 μm
Resolution 5 μm 1 μm Up to 0.1 µm
T period of output
20 µm 4 µm 20 µm
signals
8
C model Dimensions in mm
For CM ending in 20 A= 10
For CM ending in 40 A= 20
For CM ending in 70 A= 35
Order identification
Example for an incremental encoder : COP - 425
C O P 42 5
Type of profile: Type of reference mark I0: Type of signal: Measuring length Accuracy of the linear
in cm: encoder:
C for wide • Blank space: Incremental, one • T: 5 μm Resolution TTL
spaces mark every 50 mm • X: 1 μm Resolution differential TTL In the example • 5: ± 5 μm
• O: Distance-coded marks • P: 1 Vpp sinusoidal (42) = 42 cm = 420 mm • B
lank space: ± 10 μm
9
I N C R E M E N T A L
M series
LINEAR
Operating
40 (*) • 70 • 120 • 140 • 170 • 220 • 270 • 320 • 370
0 ºC...50 ºC 420 • 470 • 520 • 620 • 720 • 770 • 820 • 920 • 1020
temperature
Storage temperature -20 ºC...70 ºC
1140 • 1240 • 1340 • 1440 • 1540
Specific characteristics
MT MX MP
MTD MKT MKX
MOT MOX MOP
Accuracy ± 10 μm ± 5 μm ± 10 μm ± 5 μm
Resolution 5 μm 1 μm Up to 0.1 µm
10
M model Dimensions in mm
For CM ending in 40 A= 20
I0 every 50 mm
For CM ending in 70 A= 35
Order identification
Example for an incremental encoder : MOP - 425
M O P 42 5
Type of profile: Type of reference mark I0: Type of signal: Measuring lengths Accuracy of the linear
in cm: encoder:
M: for limited • Blank space: Incremental, one • T: 5 μm resolution TTL
spaces mark every 50 mm • TD: 5 μm resolution differential TTL In the example • 5: ± 5 μm
• O: Absolute distance-coded • X: 1 μm resolution differential TTL (42) = 42 cm = 420 mm • B
lank space: ± 10 μm
marks • P: 1 Vpp sinusoidal
11
I N C R E M E N T A L
MM series
LINEAR
Specific characteristics
MMT MMKT MMX MMKX MMP
Accuracy ± 10 μm ± 5 μm ± 10 μm ± 5 μm
Resolution 5 μm 1 μm 0.1 μm
12
MM model Dimensions in mm
Machine way
Measuring length
MMK model
Machine way
Measuring length
Order identification
Example for an incremental encoder : MMT-27
MM T 27
Type of profile: Type of signal: Measuring lengths in cm:
MM: for very limited space •T
: 5 μm resolution TTL In the example
•X
: 1 μm resolution differential TTL (27) = 27 cm = 270 mm
•P
: 1 Vpp sinusoidal
13
I N C R E M E N T A L
MTD-P-2R series
LINEAR
Specific characteristics
MTD-P-2R
Accuracy ± 10 μm
Resolution 5 μm
14
MTD-P-2R model Dimensions in mm
Machine way
Measuring length
For CM ending in 20 A= 10
For CM ending in 70 A= 35
Order identification
Example for an incremental encoder: MTD-77 P-2R
M TD 77 P2R
Type of profile: Type of signal: Measuring lengths in cm: Reference mark I0:
M: for limited space TD: 5 µm resolution differential In the example Two I0 at both ends
TTL (77) = 77 cm = 770 mm
15
I N C R E M E N T A L
H, S series
ROTARY
16
S, SP model Dimensions in mm
Roller bearings
H, HP model
Shaft
ØD g7
mm
3
4
6
6.35
7
L: Min. 9 mm, max. 16 mm 8
9.53
10
HA model
S P 1024 C5 R 12 IP 66
Model: Type of signal: Number of Type of connector: Cable exit: Voltage: Protection:
• S: Solid shaft • Blank space: pulses/turn: • Blank space: 1 m cable • R: Radial • Blank space: •B
lank space:
• H: Hollow shaft square signal (See table without connector • A: A
xial Blank Standard 5 V supply Standard
(TTL or HTL) • C: Flange socket space: Axial • 12: Optional 12 V protection (IP 64)
page 16)
• P: 1 Vpp CONNEI 12 supply (only for • IP 66: Protection
sinusoidal signal • C5: 1 m cable with HTL signal) IP 66
CONNEI 12 connector
HA 2 2 1 3 2 2500
In all Type of clamp: Size of the Output signals: Type of connection: Supply voltage: Number of pulses/
cases hollow shaft turn:
• 1: Rear clamp
(ØA): • 1: A, B, I0 plus their • 1: Radial cable (2 m) •1 : Push-Pull
• 2: Front clamp inverted • 2: CONNEI 12 radial (11-30 V) (See table page 16)
• 1: 10 mm connector built into it • 2: RS-422 (5 V)
• 2: 12 mm • 3: Radial cable (1 m) with
CONNEI 12 connector
17
accessories
Connection cables
Connection to FAGOR
EC…T-D EC…P-D
Lengths: 1, 3, 6, 9 and 12 meters Lengths: 1, 3, 6, 9 and 12 meters
Specific characteristics
AF AC AL
AD washer
Maximum radial misalignment permitted
2 mm 1 mm 0.2 mm
Washer for mounting rotary encoder
models H, HP, S, SP.
18
Fagor Automation shall not be held responsible for any printing or transcribing errors in the catalog and reserves the right to make any changes to the characteristics of its products
without prior notice. You must always compare the data with that appearing in the manual that comes with the product.
19
Fagor Automation, S. Coop.
Bº San Andrés, 19
E-20500 Arrasate - Mondragón
SPAIN
Tel.: +34 943 719 200
Fax.: +34 943 791 712
E-mail: info@fagorautomation.es
ER-073/1994
w w w. f a g o r a u t o m a t i o n . c o m
asia
BUDAPEST
CLERMONT FERRAND
GOMEL
BANGALORE
america
GÖPPINGEN
BANGKOK
GÖTEBORG
CHENGDU
BOGOTÁ Plants Headquarters ISTANBUL DELHI
BUENOS AIRES
USURBIL MONDRAGÓN IZEGEM GUANGZHOU
CHICAGO KAPELLEN
DALLAS
ESKORIATZA HO CHI MINH CITY
KOTLIN HONG KONG
BEIJING
africa
EL SALVADOR D.F.
LANGENTHAL JAKARTA
LIMA
LOG PRI BREZOVICI KUALA LUMPUR
LOS ANGELES
JOHANNESBURG MILANO MANILA
MEXICO D.F.
MOSKVA NANJING
MONTERREY N.L.
NEUCHATEL PUNE
MONTEVIDEO
NORTHAMPTON RAJKOT
MONTREAL
SHANGHAI
PORTO
oceania
NEW JERSEY
SEOUL
SANTIAGO PRAHA
SINGAPORE
SAO PAULO ROOSENDAAL
TAICHUNG AUCKLAND
TAMPA THESSALONIKI
TEL-AVIV DUNEDIN
TORONTO TOIJALA
TOKYO MELBOURNE
UTRECHT
SYDNEY
WIEN
worldwide automation