Siemens SINAMICS S150 Operating Instructions Manual page 72

Electrical installation
4.9 Other connections
Circuit proposal for controlling the auxiliary contactor from within the converter
The following circuit, for example, can be used if the auxiliary contactor is to be controlled
from within the converter. The "Operation" message is then no longer available for other
purposes.
Figure 4-9
Note
If 230 V AC is applied to the relay outputs, the customer terminal block must also be
grounded via a 6 mm² protective conductor.
72
Circuit proposal for controlling the auxiliary contactor from within the converter
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A