Siemens SINAMICS G220 - Page 672

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Figure14-231 SLS with change between two SLS limit values
Action Motor/converter response
① Selection of SLS
• The converter detects the selection of SLS.
• The converter detects when the SLS2 limit value is selected.
1)
• The converter starts the SLS delay time (p9551).
② Braking below the SLS limit
value
• The motor follows the setpoint of the higher-level control and
brakes.
2)
• The actual speed must remain below the SLS2 limit value until
the SLS delay time has elapsed.
③ Activation of the SLS limit val‐
ue
• Monitoring of the SLS2 limit value (p9531[1)] is e󹪜ective once
the SLS delay time (p9551) has elapsed.
• The converter signals the status "SLS active" (r9722.4) and the
active SLS level(r9722.9=1, r9722.10=0).
④ Violation of the SLS limit
• If the motor speed violates the SLS2 limit value, the converter
initiates the set stop response p9563[1].
⑤ Change to SLS1 limit value
• The converter detects when the SLS1 limit value is selected.
1) 3)
• The converter starts the SLS delay time (p9551). The SLS2 limit
value remains while the SLS delay time is active.
⑥ Braking below the SLS limit
value
• The motor follows the setpoint of the higher-level control and
brakes.
2)
• The actual speed must remain below the SLS1 limit value until
the SLS delay time has elapsed.
Functions
14.12Safety Integrated
SINAMICS G220 converter
670 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB