Siemens SINAMICS DCM Operating Instructions Manual page 190

Additional system components
7.3 Sensor Module Cabinet-Mounted SMC30
SSI encoders
Figure 7-14
Encoders with 5 V supply connected to X521/X531
For encoders with a 5 V supply at X521/X531, the cable length depends on the encoder
current (for 0.5 mm
Figure 7-15
188
Maximum cable lengths depending on the SSI baud rate for SSI encoders
cable cross-sections):
2
Max. cable length as a function of the encoder current drawn
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A