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Electrical installation
4.9 Additional connections
4.9.20
SMC30 Sensor Module Cabinet-Mounted (option K50)
4.9.20.1
Description
The SMC30 Sensor Module is used for acquiring 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.
The following can be connected to the SMC30 Sensor Module:
● TTL encoder
● HTL encoder
● SSI encoder
● KTY, PT1000 or PTC temperature sensor
Table 4- 57
Connectable encoders with supply voltage
Encoder type
HTL bipolar 24 V
HTL unipolar 24 V
TTL bipolar 24 V
TTL bipolar 5 V
TTL unipolar
SSI 24 V/5 V
Table 4- 58
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.
168
X520 (SUB-D)
X521 (terminal)
Yes
Yes
Yes
Yes
No
Yes
Maximum signal cable lengths
Encoder type
TTL
HTL unipolar
HTL bipolar
SSI
X531 (terminal)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Open-circuit
monitoring
Yes
No
Yes
Yes
No
No
Maximum signal cable length
330 ft (100 m)
330 ft (100 m)
990 ft (300 m)
330 ft (100 m)
Operating Instructions, 12/2018, A5E36652151A
Remote Sense
No
No
No
To X520
No
No
Enclosed Drives
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