Siemens SINAMICS G130 - Sensor Module Cabinet-Mounted SMC30

Electrical installation
4.10 Signal connections
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A
113
4.10.5
Sensor Module Cabinet-Mounted SMC30
4.10.5.1
Description
The SMC30 Sensor Module is used for determining the actual motor speed. The signals
emitted by the rotary pulse encoder are converted here and made available to the closed-
loop controller via the DRIVE-CLiQ interface for evaluation purposes.
In conjunction with SINAMICS G130 the following encoders can be connected to the SMC30
Sensor Module:
● TTL encoder
● HTL encoder
● KTY, PT1000 or PTC temperature sensor
Table 4- 44 Connectable encoders with supply voltage
Encoder type
X520 (SUB-D)
X521 (terminal)
X531 (terminal)
Open-circuit moni-
toring
Remote sense
HTL bipolar 24 V
Yes
Yes
Yes
Yes
No
HTL unipolar 24 V
Yes
Yes
Yes
No
No
TTL bipolar 24 V
Yes
Yes
Yes
Yes
No
TTL bipolar 5 V Yes Yes Yes Yes To X520
TTL unipolar
No
No
No
No
No
Table 4- 45 Maximum signal cable lengths
Encoder type
Maximum signal cable length in m
TTL
100
HTL unipolar
100
HTL bipolar
300
Note
Prefer a bipolar connection
Because the physical transmission media is more robust, the bipolar connection should
always be used for HTL encoders. The unipolar connection should only be used if the
encoder type does not output push
-pull signals.
Note
Only connect one encoder system
Only one encoder system may be connected to the encoder module, either at X520 or at
X521/X531. The corresponding unused interface must not be used.