Siemens SINAMICS G120X - Page 132

Procedure for converters in frame sizes FSD ... FSG
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Both switches = ON: STO is enabled
Both switches = OFF: STO is locked
Two switches different: not permissible
Figure 4-24 Terminals and switches for the "STO" function, frame sizes FSD ... FSG
1. Remove the Control Unit.
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2. Connect the cable for selecting STO to terminals STO_A and STO_B.
3. Plug in the Control Unit.
Wiring
4.2 Control interfaces
SINAMICS G120X converter
130 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC