Response To A Discrepancy When Sls Is Active - Siemens Sinamics G120 Function Manual

Operation
6.6 Safely Limited Speed (SLS)
6.6.6

Response to a discrepancy when SLS is active

Drive response
The inverter responds with the active SLS safety function to a discrepancy at the fail-safe digital
input.
Figure 6-33
The inverter does not set the error bit of the safety functions (= internal event).
After the tolerance time has expired, the inverter signals the discrepancy (Alarm C01770 or
C30770). The SLS function remains active, and the motor remains switched on.
Independent of the voltage levels available, the inverter sets the evaluation of the discrepant
F-DI into the safe state (= zero) until you acknowledge the inverter using a fail-safe signal or
you switch off the power supply voltage and switch it on again.
Inverter signal
SLS active
Deselect SLS
"Standard" acknowledgment
268
Behavior of the inverter for discrepancy of the input signal for SLS
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Parameters Included in the PROFI‐
safe telegram
r9722.4
r9720.4
p2103
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Can be interconnec‐
ted with
F-DI
✓ ---
✓ ✓
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F-DO
✓
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