Procedure for converters in frame sizes FSA ... FSC
&RQQHFWLRQ$IRUVHOHFWLRQRI672
&RQQHFWLRQ%IRUVHOHFWLRQRI672
6ZLWFKHVWRHQDEOHRUGLVDEOH672
Both switches = ON: STO is enabled
Both switches = OFF: STO is locked
Two switches different: not permissible
Figure 4-23
Terminals and switches for the "STO" function, frame sizes FSA ... FSC
1. Connect the cables for selecting STO to terminals STO_A and STO_B.
2. Connect the cables for STO feedback to 2 digital outputs of terminal block X134.
;
3. Attach the shield to the shield plate of the converter through the largest possible surface
area.
You have connected all cables for the STO safety function.
❒
Wiring
4.2 Control interfaces
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
129