Siemens SINAMICS G220 - Slip Compensation

14.10.4.5 Slip compensation
Overview
Slip compensation keeps the speed of an induction motor as constant as possible, regardless of
the load on the motor.
Description of function
When the load torque M increases from M1 to M2, slip compensation increases the setpoint
frequency. As a result, the motor speed remains largely constant.
When the load torque M returns to M1, slip compensation reduces the setpoint frequency
accordingly.
Setting the parameter p1351>0 switches on slip compensation p1335=100%.
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Figure14-112 Slip compensation
Parameters
The following list contains the parameters of the "Slip compensation" function.
Number Name Unit
r0330[0...n] Rated motor slip [Hz]
p1334[0...n] U/f control slip compensation starting frequency [Hz]
p1335[0...n] Slip compensation scaling [%]
p1336[0...n] Slip compensation limit value [%]
r1337 Actual slip compensation [%]
p1351[0...n] Motor holding brake starting frequency [%]
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 503