(G) Control parameters
Slip of the motor is estimated from the inverter output current at the time of V/F control, and maintain
the rotation of the motor constant.
● Slip compensation will become enabled by calculating the rated motor slip, and setting to Pr. 245.
Slip compensation is not performed when Pr. 245 = "0, 9999".
When the slip compensation is performed, the output frequency may become larger than the set
frequency. Set Pr. 1 "Maximum frequency" higher than the set frequency.
Slip compensation will be disabled in following cases.
At the times of stall preventive (oL, OL) operation, regeneration avoidance operation, auto tuning.
Parameters referred to
5 - 566
Slip compensation time
Constant-power range slip
Synchronized speed at the time of base frequency - rated rotation speed
Synchronized speed at the time of base frequency
0.01 to 50% Set the rated motor slip.
Without slip compensation
Set the response time of the slip compensation.
Response will become faster when the value is
0.01 to 10s
lowered, but the regenerative overvoltage (E.OV)
error will occur more frequently when the load inertia
Do not perform slip compensation at constant output
range (frequency range higher than the frequency set
in Pr. 3).
Perform the slip compensation of the constant