Absolute encoders - SSI
Hollow shaft max. ø50.8 mm
Optical multiturn encoder 13 bit ST / 12 bit MT
G1M2H, G2M2H - SSI
Features
– Encoder multiturn / SSI
– Optical sensing
– Resolution: singleturn 13 bit, multiturn 12 bit
– Hollow shaft of 1” and 2” diameter
– Electronic setting of zero point
– Permanent check of code continuity
– Counting direction input
– High resistance to shock and vibrations
– For high positive and negative acceleration
G1M2H with hollow shaft
Technical data - electrical ratings
Technical data - mechanical design
Voltage supply
10...30 VDC
Protection DIN EN 60529 IP 54
Reverse polarity protection Yes
Materials
Housing: aluminium
Flange: aluminium
Bus cover: aluminium
Consumption w/o load
Initializing time (typ.)
Interface
≤50 mA (24 VDC)
20 ms after power on
SSI
Operating temperature
-25...+85 °C
-40...+85 °C (optional)
Steps per turn
Number of turns
Absolute accuracy
Sensing method
Code
8192 / 13 bit
Relative humidity
Resistance
95 % non-condensing
4096 / 12 bit
DIN EN 60068-2-6
±0.025°
Vibration 10 g, 16-2000 Hz
DIN EN 60068-2-27
Shock 200 g, 6 ms
Optical
Gray or binary
CW/CCW coded by connection
E-connection
Connector, 12-pin
Code sequence
Inputs
G1M2H - SSI
Housing
SSI clock
Control signals UP/DOWN and
zero
ø90 mm
Shaft
ø25.4 mm hollow shaft
Output circuit
SSI data linedriver RS485
Diagnostic outputs push-pull
Operating speed
≤3800 rpm (mechanical)
≤6000 rpm (electric)
Interference immunity
Emitted interference
Diagnostic functions
DIN EN 61000-6-2
DIN EN 61000-6-4
Rotor moment of inertia
Weight approx.
2000 gcm²
890 g
Self-diagnosis
Code continuity check
Multiturn sensing
G2M2H - SSI
Housing
ø116 mm
Shaft
ø50.8 mm hollow shaft
Approval
UL approval / E63076
Operating speed
≤2000 rpm (mechanical)
≤6000 rpm (electric)
Rotor moment of inertia
Weight approx.
11000 gcm²
1200 g
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