EN

Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Features
–– Encoder multiturn / SSI
–– Optical sensing method
–– Resolution: max. singleturn 14 bit, multiturn 16 bit
–– Clamping or synchro flange
–– Electronic setting of zero point
–– Counting direction input
–– Available with additional incremental output
–– Maximum resistant against magnetic fields
Optional
–– Stainless steel design
GM400 with clamping flange
Technical data - mechanical design
Voltage supply
Size (flange)
ø58 mm
Protection DIN EN 60529
IP 54 (without shaft seal),
IP 65 (with shaft seal)
10...30 VDC
5 VDC ±10 %
Reverse polarity protection Yes (10..30 VDC) / No (5 VDC)
Consumption w/o load
≤50 mA (24 VDC)
≤80 mA (5 VDC)
Operating speed
≤10000 rpm (mechanical)
≤6000 rpm (electric)
Initializing time typ.
20 ms after power on
Starting acceleration
≤1000 U/s²
Interfaces
SSI, Incremental A 90° B
(optional)
Starting torque
≤0.015 Nm (+25 °C, IP 54)
≤0.03 Nm (+25 °C, IP 65)
Function
Multiturn
Rotor moment of inertia
20 gcm²
Steps per turn
≤16384 / 14 bit
Admitted shaft load
Number of turns
≤65536 / 16 bit
≤20 N axial
≤40 N radial
Incremental output
2048 pulses A90°B
+ inverted
Materials
Housing: steel
Flange: aluminium
Absolute accuracy
±0.025 °
Operating temperature
Sensing method
Optical
-25...+85 °C
-40...+85 °C (optional)
Code
Gray or binary
Relative humidity
95 % non-condensing
Code sequence
CW/CCW coded by connection
Resistance
Inputs
SSI clock
Control signals UP/DOWN and
zero
DIN EN 60068-2-6
Vibration 10 g, 16-2000 Hz
DIN EN 60068-2-27
Shock 200 g, 6 ms
Output stages
SSI data: linedriver RS485
Diagnostic outputs push-pull
Weight approx.
400 g
Connection
Interference immunity
DIN EN 61000-6-2
Connector M23, 12-pin
Cable 1 m
Emitted interference
DIN EN 61000-6-4
Diagnostic functions
Self-diagnosis
Multiturn sensing
Approval
UL approval / E63076
GM400
Shaft type
ø10 mm solid shaft
Flange
Clamping flange
GM401
1
Shaft type
ø6 mm solid shaft
Flange
Synchro flange
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14/6/2016
Technical data - electrical ratings
Subject to modification in technic and design. Errors and omissions excepted.
–– Corrosion protection for offshore applications
Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Part number
Clamping flange
GM400.
02
04
06
07
24
26
27
34
36
37
Voltage supply / signals
10...30 VDC / gray code 25 bit (ST 13 + MT 12)
5 VDC / gray code 25 bit (ST 13 + MT 12)
10...30 VDC / binary code 25 bit (ST 13 + MT 12)
5 VDC / binary code 25 bit (ST 13 + MT 12)
10...30 VDC / gray code 24 bit (ST 12 + MT 12)
10...30 VDC / gray code 25 bit (ST 13 + MT 12) + parity
10...30 VDC / gray code 24 bit (ST 12 + MT 12) + DV
10...30 VDC / gray code 26 bit (ST 14 + MT 12)
10...30 VDC / binary code 26 bit (ST 14 + MT 12)
10...30 VDC / gray code 29 bit (ST 13 + MT 16)
Subject to modification in technic and design. Errors and omissions excepted.
10
11
12
13
20
30
40
90
92
A0
Connection
Connector M23, 12-pin, axial
Connector M23, 12-pin, radial
Connector M23, 12-pin, axial, for incremental output 04/06/07/24/26/27/34/36/37
Connector M23, 12-pin, radial, for incremental output 04/06/07/24/26/27/34/36/37
Cable 1 m, axial
Cable 1 m, radial
Cable 1 m, axial, for incremental output 04/06/07/24/26/27/34/36/37
Cable 1 m, radial, for incremental output 04/06/07/24/26/27/34/36/37
Flange / Solid shaft
0 Clamping flange / ø10 mm, IP 54
A Clamping flange / ø10 mm, IP 65
2
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14/6/2016
A0
A1
A2
A3
11
21
31
41
Pulses / Incremental output
No incremental output
2048 pulses / push-pull
2048 pulses / RS422
2048 periods / SinCos
1024 pulses / push-pull
1024 pulses / RS422
1024 periods / SinCos
512 pulses / push-pull
512 pulses / RS422
512 periods / SinCos
Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Part number
Synchro flange
GM401.
02
04
06
07
24
26
27
34
36
37
Voltage supply / signals
10...30 VDC / gray code 25 bit (ST 13 + MT 12)
5 VDC / gray code 25 bit (ST 13 + MT 12)
10...30 VDC / binary code 25 bit (ST 13 + MT 12)
5 VDC / binary code 25 bit (ST 13 + MT 12)
10...30 VDC / gray code 24 bit (ST 12 + MT 12)
10...30 VDC / gray code 25 bit (ST 13 + MT 12) + parity
10...30 VDC / gray code 24 bit (ST 12 + MT 12) + DV
10...30 VDC / gray code 26 bit (ST 14 + MT 12)
10...30 VDC / binary code 26 bit (ST 14 + MT 12)
10...30 VDC / gray code 29 bit (ST 13 + MT 16)
Subject to modification in technic and design. Errors and omissions excepted.
10
11
12
13
20
30
40
90
92
A0
Connection
Connector M23, 12-pin, axial
Connector M23, 12-pin, radial
Connector M23, 12-pin, axial, for incremental output 04/06/07/24/26/27/34/36/37
Connector M23, 12-pin, radial, for incremental output 04/06/07/24/26/27/34/36/37
Cable 1 m, axial
Cable 1 m, radial
Cable 1 m, axial, for incremental output 04/06/07/24/26/27/34/36/37
Cable 1 m, radial, for incremental output 04/06/07/24/26/27/34/36/37
Flange / Solid shaft
1 Synchro flange / ø6 mm, IP 54
B Synchro flange / ø6 mm, IP 65
3
www.baumer.com/motion
14/6/2016
A0
A1
A2
A3
11
21
31
41
Pulses / Incremental output
No incremental output
2048 pulses / push-pull
2048 pulses / RS422
2048 periods / SinCos
1024 pulses / push-pull
1024 pulses / RS422
1024 periods / SinCos
512 pulses / push-pull
512 pulses / RS422
512 periods / SinCos
Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Accessories
Trigger level
Connectors and cables
SSI
Circuit
SSI-Clock
Optocoupler
SSI-Data
Linedriver RS485
Z 130.001
Female connector M23, 12-pin, without cable
Z 130.003
Female connector M23, 12-pin, 2 m cable
Z 182.001
Female connector M23, 12-pin, without cable
(incr.)
Control inputs
Input circuit
Z 182.003
Female connector M23, 12-pin, 2 m (incr.)
Input level High
>0.7 UB
Input level Low
<0.3 UB
Input resistance
10 kΩ
Diagnostic outputs or
Incremental outputs
Output circuit
Push-pull circuit-proof
Output level High
>UB -3.5 V (I = -20 mA)
Output level Low
<0.5 V (I = 20 mA)
Load High / Low
<20 mA
Incremental outputs
Linedriver RS422
Output level High
>2.5 V (I = -20 mA)
Output level Low
<0.5 V (I = 20 mA)
Load High / Low
<20 mA
Mounting accessories for GM400
Z 119.006
Eccentric fixing, single
Z 119.013
Adaptor plate for clamping flange for
modification into synchro flange
Z 119.017
Mounting adaptor for clamping flange (M3)
Mounting accessories for GM401
Z 119.006
Eccentric fixing, single
Z 119.015
Mounting adaptor for synchro flange
Z 119.035
Bearing flange for encoders with synchro
flange
Data transfer
tp
T=1/f
tm
clock
bit n
bit n-1
bit 3
bit 2
1 Vpp ±10 %
Load
<10 mA
bit 1
Clock frequency f
62.5...1500 kHz
Duty cycle of T
40...60 %
Delay time tv
150 ns
Monoflop time tm
26 µs + T/2
Clock interval tp
30 µs
Subject to modification in technic and design. Errors and omissions excepted.
tv
SinCos
4
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14/6/2016
data
Outputs
Output level
Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Terminal significance
Terminal assignment
UB
Encoder voltage supply.
GM400, GM401
GND
Encoder ground connection relating to UB.
Connector
Core colour
Assignment
Data+
Positive, serial data output of differential
linedriver.
Pin 1
brown
UB
Data-
Negative, serial data output of differential
linedriver.
Pin 2
black
GND
Pin 3
blue
Clock+
Pin 4
beige
Data+
Pin 5
green
Zero setting
Pin 6
yellow
Data-
Pin 7
violet
Clock-
Pin 8
brown/yellow DATAVALID
Pin 9
pink
UP/DOWN
Pin 10
black/yellow
DATAVALID MT
Pin 11-12
–
–
Zero setting
DATAVALID
Negative SSI clock input.
Clock- together with clock+ forms a current
loop. A current of approx. 7 mA towards
clock- input means logic 0 in positive logic.
Input for setting a zero point anywhere
within the programmed encoder resolution.
The zero setting operation is triggered by a
High impulse and has to be in line with the
selected direction of rotation (UP/DOWN).
Connect to GND after setting operation for
maximum interference immunity. Impulse
duration >100 ms.
GM400, GM401 with incremental tracks | SinCos
Connector
Diagnostic output.
An error warning is given at level Low.
Important: Interferences must be drained
by the downstram electronics.
DATAVALID MT Diagnostic output for monitoring the
multiturn sensor voltage supply. Upon
dropping below a defined voltage level the
DV MT output is switched to Low.
UP/DOWN
Incremental
Outputs
UP/DOWN counting direction input.
This input is standard on High. UP/DOWN
means ascending output data with clockwise shaft rotation when looking at flange.
UP/DOWN-Low means ascending values
with counterclockwise shaft rotation when
looking at flange.
SinCos
brown
UB
UB
Pin 2
white
GND
GND
Pin 3
blue
Clock+
Clock+
Pin 4
green
Data+
Data+
Pin 5
grey
Zero setting
Zero setting
Pin 6
yellow
Data-
Data-
Pin 7
red
Clock-
Clock-
Pin 8
red/blue
Track B inv.
Cosine
Pin 9
pink
UP/DOWN
UP/DOWN
Pin 10
violet
Track A inv.
Sine
Pin 11
black
Track A
Sine
Pin 12
grey/pink
Track B
Cosine
7
9 1
10
12
2
Please use cores twisted in pairs (for
example clock+ / clock-) for extension
cables of more than 10 m length.
3
6
5
5
Assignment
Incremental
Pin 1
8
Incremental tracks A 90° B and inverted.
Core colour
11
4
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Subject to modification in technic and design. Errors and omissions excepted.
Clock-
Positive SS clock input.
Clock+ together with clock- forms a current
loop. A current of approx. 7 mA towards
clock+ input means logic 1 in positive logic.
14/6/2016
Clock+
Absolute encoders - SSI
Solid shaft with clamping or synchro flange
Optical multiturn encoders up to 14 bit ST / 16 bit MT
GM400, GM401
Dimensions
GM400 - clamping flange
10 20
46
10 20
15
10 20
46
10 20
15
ø10h6
9
ø58
ø53
ø36f8
9
59
ø10h6
15
17
3
3
3
3
16
13
10
9
59
ø58
ø52
ø6f8
ø50h7
58
5.5
4
3
3
6
www.baumer.com/motion
Subject to modification in technic and design. Errors and omissions excepted.
GM400, GM401 - connector dimensions
14/6/2016
GM401 - synchro flange
42±0.1
M4x7 (3x120°)
ø58
46
ø53
3
3
3
48±0.1
M3x7 (3x120°)
ø58
3
17
ø36f8
9
11.5
ø58
16
9
ø36f8
ø53
ø10h6
ø10h6
15
ø53
46
ø36f8
48±0.1
M3x7 (3x120°)
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