Slip Compensation - Siemens SINAMICS G150 Operating Instructions Manual

7.3.3

Slip compensation

Description
Slip compensation essentially keeps the speed of induction motors constant irrespective of
the load (M
For an increase in the load from M
so that the resulting frequency and therefore the motor speed remains constant. For a
decrease in the load from M
accordingly.
If a motor holding brake is applied, a setting value can be specified at the slip compensation
output via p1351. If parameter p1351 > 0 then the slip compensation is switched on
automatically (p1335 = 100%).
Figure 7-10
Function diagram
FP 6310
Parameters
• r0330
• p1334
• p1335
• p1336
• r1337
• p1351
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
or M ).
1 2
to M
2
Slip compensation
Resonance damping and slip compensation
Rated motor slip
Slip compensation start frequency
Slip compensation
p1335 = 0.0%: slip compensation is deactivated.
p1335 = 100.0%: slip is fully compensated.
Slip compensation limit value
Actual slip compensation
CO: Motor holding brake start frequency
Setpoint channel and closed-loop control
to M , the setpoint frequency is automatically increased
1 2
, the setpoint frequency is automatically decreased
1
7.3 V/f control
383