Switching The Motor Off And On Again When Sls Is Active - Siemens SINAMICS G120 Function Manual

Description
2.5 Safely Limited Speed, SLS
2.5.5

Switching the motor off and on again when SLS is active

If you switch the motor off with the OFF1 or OFF3 command while the SLS safety function is
active, for example when limit switches are reached, the inverter brakes the motor with the
OFF1 or OFF3 ramp-down time. While braking, the inverter monitors the motor speed to
determine whether the permissible limit has been exceeded.
Proceed as follows to switch the motor off and on again when SLS is active:
● Switch the motor off when SLS is active.
● When the motor has come to a standstill, select STO.
● Deselect STO before switching the motor on again.
● Switch on the motor within 5 seconds (ON command).
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Figure 2-17 Switching the motor off and on (ON/OFF 1) when SLS is active
Safety Integrated Function Manual, SINAMICS G120 and G120C
Function Manual, 01/2011, FW 4.4, A5E03052391B AB