Mitsubishi Electronics FR-A700 Manual De Usuario

(current) of the motor

⋅ Slip compensation is validated when the motor rated slip calculated by the following formula is set in Pr. 245. Slip

compensation is not made when Pr. 245 = "0" or "9999".

The inverter output current may be used to assume motor slip to keep the motor speed constant.

9999

0.01 to 50%

Used to set the rated motor slip.

0, 9999

No slip compensation

0.5s

0.01 to 10s

Used to set the slip compensation response 
time. When the value is made smaller, 
response will be faster. However, as load 
inertia is greater, a regenerative overvoltage 
fault (E.OV ) is more liable to occur.

9999

0

Slip compensation is not made in the 
constant power range (frequency range 
above the frequency set in Pr. 3)

9999

Slip compensation is made in the constant 
power range.

=

Synchronous speed at base frequency - rated speed × 100[%]

When performing slip compensation, the output frequency may become greater than the set frequency. Set the Pr. 1 Maximum
frequency value a little higher than the set frequency.

♦ Parameters referred to ♦