Siemens SINAMICS G180 Installation And Operating Instructions Manual page 111

"Connecting external control voltage for compact devices" (Page 68) Perform the wiring in
accordance with the following plan:
Figure 8-25 Line contactor function
Table 8-8 Line contactor functions
Terminal / Function
component
-F1 External control voltage fuse protection
-F2 Inverter output section fuse protection
-K1 Input side main contactor
Design recommendation: AC1 current of the contactor is at least the inverter input current
101, 102 External control voltage for the 230 V inverter
41, 42 Digital output for the main contactor control
U1, V1, W1 Mains power connection switched via main contactor
8 Main contactor feedback input
55 24 V DC supply voltage
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001
Operation
8.5 Special functions
109