Rated slip frequency (P12)
Convert the value obtained from the motor manufacturer to Hz using the following expression
and enter the converted value. (Note: The motor rating given on the nameplate sometimes
shows a larger value.)
Rated slip frequency (Hz) =
(Synchronous speed - Rated speed)
x Base frequency
Synchronous speed
For reactance, choose the value at the base frequency 1 (F04).
P09
Motor 1 (Slip compensation gain for driving)
P10
(Slip compensation response time)
P11
(Slip compensation gain for braking)
P09 and P11 determine the slip compensation amount in % for driving and braking individually.
Specification of 100% fully compensates for the rated slip of the motor. Excessive
compensation (P09, P11 > 100%) may cause a system oscillation, so carefully check the
operation on the actual machine.
P10 determines the response time for slip compensation. Basically, there is no need to modify
the default setting. If you need to modify it, consult your Fuji Electric representatives.
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