Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Electrical installation
4.9 Additional connections
Enclosed Drives
168
Operating Instructions, 12/2018, A5E36652151A
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 X520 (SUB-D) X521 (terminal) X531 (terminal) Open-circuit
monitoring
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
SSI 24 V/5 V Yes Yes Yes No No
Table 4- 58 Maximum signal cable lengths
Encoder type Maximum signal cable length
TTL 330 ft (100 m)
HTL unipolar 330 ft (100 m)
HTL bipolar 990 ft (300 m)
SSI 330 ft (100 m)
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.