Scenario 2: The absolute value of the load speed is higher than the setpoint speed limit.
Function
1. The inverter brakes the motor.
2. The inverter monitors the speed after the delay time has expired.
3. If you deselect SLS, then the motor accelerates again up to the speed setpoint.
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Figure 6-25 Selecting and deselecting the SLS safety function at high speeds
Inverter signal Parameter Included in the PROFI‐
safe telegram
Can be interconnec‐
ted with
F-DI F-DO
SLS active r9722.4 ✓ --- ✓
Deselect SLS r9720.4 ✓ ✓ ---
SAM/SBR active r9723.16 --- --- ---
ON/OFF1 r0054.0 --- --- ---
Operation
6.6 Safely Limited Speed (SLS)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 257
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