Siemens SINAMICS G120 Function Manual page 231

Switching the motor on after an internal event
Procedure
To switch the motor in the example above on again, proceed as follows:
1. Issue an OFF1 command (ON/OFF1 = 0).
2. Acknowledge the internal event in one of the following ways:
3. Acknowledge the inverter with the "standard" acknowledge signal.
4. Switch on the motor (ON/OFF1 = 1).
You have acknowledged the internal event and switched on the motor again.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
– Fail-safe acknowledgment using PROFIsafe control word 0, bit 7 = 0 → 1 → 0
– Fail-safe acknowledge signal via a safety input: F-DI = 0 → 1 → 0.
– Select the STO function and deselect again (PROFIsafe control word 0, bit 0 or F-DI).
1 → 0 → 1).
– Select the SS1 function and deselect again (PROFIsafe control word 0, bit 1 or F-DI).
1 → 0 → 1).
– Switch off the inverter supply voltage and on again (power on reset).
Also see section: Switching on the motor when SSM is active (Page 213).
Operation
6.10 Stop responses
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