Absolute encoders - SSI
Shaft with clamping or synchro flange
Optical multiturn encoders 14 bit ST / 12 bit MT
GM400, GM401 - SSI
Features
– Encoder multiturn / SSI
– Optical sensing
– Resolution: singleturn 14 bit, multiturn 12 bit
– Clamping flange or synchro flange
– Electronic setting of zero point
– Counting direction input
– Suitable for high positive and negative accelerations
– Available with additional incremental output
Optional
– Stainless steel design
GM400 with clamping flange
Technical data - electrical ratings
Technical data - mechanical design
Voltage supply
10...30 VDC
Housing
ø58 mm
Reverse polarity protection Yes
Protection DIN EN 60529 IP 54 without shaft seal
IP 65 with shaft seal
Consumption w/o load
Initializing time (typ.)
Interfaces
≤50 mA (24 VDC)
Operating speed
≤10000 rpm (mechanical)
≤6000 rpm (electric)
20 ms after power on
SSI, Incremental A 90° B
(optional)
Starting torque
≤0.015 Nm IP 54
≤0.03 Nm IP 65
Steps per turn
16384 / 14 bit
Rotor moment of inertia
Admitted shaft load
20 gcm²
Number of turns
Incremental output
4096 / 12 bit
≤20 N axial
≤40 N radial
2048 pulses A90°B
+ inverted
Materials
Housing: steel
Absolute accuracy
Sensing method
Code
±0.025°
Flange: aluminium
Optical
Operating temperature
-25...+85 °C
Gray or binary
CW/CCW coded by connection
-40...+85 °C (optional)
Relative humidity
Resistance
95 % non-condensing
Code sequence
Inputs
DIN EN 60068-2-6
SSI clock
Vibration 10 g, 16-2000 Hz
DIN EN 60068-2-27
Shock 200 g, 6 ms
Control signals UP/DOWN and
zero
Output circuit
SSI data linedriver RS485
Diagnostic outputs push-pull
Weight approx.
E-connection
400 g
Interference immunity
Emitted interference
Diagnostic functions
DIN EN 61000-6-2
DIN EN 61000-6-4
Connector or cable
GM400
Shaft
Self-diagnosis
Code continuity check
Multiturn sensing
ø10 mm
Flange
Clamping flange
GM401
Shaft
Approval
UL approval / E63076
ø6 mm
Flange
Synchro flange
www.baumerivo.com
1