Fail-Safe Acknowledgment Signal; Acknowledging Using A Fail-Safe Signal - Siemens SINAMICS G120 Function Manual

Operation

6.11 Fail-safe acknowledgment signal

6.11 Fail-safe acknowledgment signal
6.11.1

Acknowledging using a fail-safe signal

You must acknowledge the majority of safety function faults using a fail-safe signal. The
following options are available.
● Acknowledging using a safety input F-DI
● Acknowledging via PROFIsafe
● Acknowledging by selecting and deselecting STO
● Acknowledging by switching the power supply on and off
Acknowledging using a safety input F-DI
Procedure
To acknowledge the inverter using a safety input F-DI, proceed as follows:
1. Acknowledge the fault with F-DI = 0 → 1 → 0.
2. Then, acknowledge the inverter with the "standard" acknowledgement signal.
You have acknowledged the inverter in a fail-safe fashion.
Acknowledging via PROFIsafe
Procedure
To acknowledge the inverter via PROFIsafe, proceed as follows:
1. Acknowledge the fault with bit 7 of the control word 0: Bit 7 = 0 → 1 → 0.
2. Then, acknowledge the inverter with the "standard" acknowledgement signal.
You have acknowledged the inverter in a fail-safe fashion.
Acknowledging by selecting and deselecting STO
Procedure
To acknowledge the inverter by selecting and deselecting STO, proceed as follows:
1. Select the safety function STO or SS1 and then deselect again.
– F-DI = 1 → 0 → 1
– PROFIsafe control word 1, bit 0 or 1 = 1 → 0 → 1
2. Then, acknowledge the inverter with the "standard" acknowledgement signal.
You have acknowledged the inverter in a fail-safe fashion.
232
or
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA