Inverter signals Parameters Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI F-DO
"Standard" acknowledgment p2103 --- --- ---
Fail-safe acknowledgment r9720.7 ✓ ✓ ---
ON/OFF1 r0054.0 --- --- ---
Deselecting SDI after a discrepancy
Procedure
To deselect SDI, proceed as follows:
1. Remove the discrepancy.
2. Acknowledge the discrepancy message with the fail-safe acknowledge signal via a fail-safe
digital input: F‑DI = 0 → 1 → 0.
Alternatively, you can acknowledge the message in one of the following ways. However,
the drive stops in these cases:
– Select the STO function and then deselect again: F‑DI = 1 → 0 → 1.
– Select the SS1 function and then deselect again: F‑DI = 1 → 0 → 1.
– Switch off the power supply voltage of the inverter and switch on again.
3. Acknowledge the inverter with the "standard" acknowledge signal.
You have acknowledged the discrepancy message and deselected SDI.
Operation
6.8 Safe Direction (SDI)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 289
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