Filter
Top Products
PARAMETERS
122
"
" Slip compensation (Pr. 245 to Pr. 247)
4.2.39 Slip compensation (Pr. 245 to Pr. 247)
Pr. 245 "rated motor slip"
Pr. 246 "slip compensation response time constant"
Pr. 247 "constant-output region slip compensation selection"
The inverter output current may be used to assume motor slip to keep the motor speed
constant.
Parameter
Number
Factory
Setting
Setting Range Remarks
245 9999 0 to 50%, 9999 9999: No slip compensation
246 0.5 0.01 to 10 s
247 9999 0, 9999 9999: Slip compensation made
<Setting>
Synchronous speed at base frequency - rated speed
Rated slip =
Synchronous speed at base frequency
×
100[%]
Parameter
Number
Setting Function
0 to 50% Used to set the rated motor slip.
245
9999 Slip compensation is not made.
246 0.01 to 10 s Used to set the slip compensation response time. (Note)
0
Slip compensation is not made in the constant output
range (frequency range above the frequency set in Pr. 3).
247
9999 Slip compensation is made in the constant output range.
Note: When this value is made smaller, response will be faster.
However, as load inertia is greater, a regenerative overvoltage (OVT) error is
more liable to occur.
4