Siemens SINAMICS G120 Operating Instructions Manual page 444

Technical data
10.1 Technical data, CU250S-2 Control Unit
Permissible encoder cable lengths
Permissible cable lengths depend on the encoder type and the encoder cable.
Table 10-1
TTL encoder
HTL encoder with bipolar signals (differential signals)
HTL encoder with unipolar signals
SSI encoder
DRIVE-CLiQ with MC800
DRIVE-CLiQ with MC500
We recommend that SIEMENS cables are connected using DRIVE-CLiQ components.
For SSI encoders, the permissible
cable length also depends on the
baud rate.
Maximum speeds that can be evaluated by a resolver
No. of poles
Impedances that can be connected at the resolver input
442
Maximum cable length:
Resolver
Number of
pole pairs
2-pole 1
4-pole 2
6-pole 3
8-pole 4
100 m
300 m
100 m
100 m
50 m
100 m
Maximum speed that can be evaluated by the resolver
Pulse frequency = 4 kHz
60000 rpm
30000 rpm
20000 rpm
15000 rpm
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
Pulse frequency = 2 kHz
30000 rpm
15000 rpm
10000 rpm
7500 rpm
Converter with the CU250S-2 Control Units