Siemens SINAMICS G150 Operating Instructions Manual page 170

Electrical installation
4.11 Other connections
Figure 4-38 Position of the zero pulse to the track signals
For encoders with a 5 V supply at X521/X531, the cable length is dependent on the encoder
current (this applies cable cross-sections of 0.5 mm²):
Figure 4-39 Signal cable length as a function of the sensor current consumption
168
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A