Siemens Sinamics G120P Operating Instructions Manual page 110

Electrical installation
4.9 Other connections
Note
Setting the protection
The connection for external auxiliary equipment must be set in accordance with the
connected load (-Q155).
Circuit proposal for controlling the auxiliary contactor from within the converter
A free digital output of the Control Unit can be used to control the auxiliary contactor; it uses
a line-side relay to control auxiliary contactor -K155.
Signal r0899.11 (pulses enabled) must also be interconnected to the selected digital output
of the Control Unit.
Figure 4-23
110
Circuit proposal for control via the Control Unit
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A