Siemens SINAMICS G120X - Page 133

4. Connect the cables for STO feedback to 2 digital outputs of terminal block X134.
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5. Attach the shield to the shield plate of the Control Unit through the largest possible surface
area.
You have connected all cables for the STO safety function.
❒
Procedure for converters in frame sizes FSH ... FSJ
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Both switches = ON: STO is enabled
Both switches = OFF: STO is locked
Two switches different: not permissible
Figure 4-25 Terminals and switches for the "STO" function, frame sizes FSH and FSJ
1. Connect the cable for selecting STO to terminals X41:STO_A and X41:STO_B.
2. Connect the cables for STO feedback to terminals X41:FB_A and X41:FB_B.
3. Attach the shield to the shield plate 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 131