Auxiliary Function; Slip Compensation (Pr. 95 , Pr. 96 , Pr. 97 ) - Mitsubishi Electric FR-S520E Series Instruction Manual

2.11 Auxiliary function

2.11.1 Slip compensation (Pr. 95
The inverter output current may be used to assume motor slip to keep the motor
speed constant.
Parameter
95 Rated motor slip
Slip compensation time
96
constant
Constant power range slip
97
compensation selection
<Setting>
Synchronous speed at base frequency - rated speed
Rated slip =
Parameter Setting
0.01 to 50%
95
96 0.01 to 10s
97
*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.
REMARKS
When making slip compensation at 60Hz, set the maximum frequency (Pr. 1) to slightly higher
than 60Hz.
In the factory setting status, it is clamped at 60Hz.
Name
Synchronous speed at base frequency
Used to set the rated motor slip.
0, - - - Slip compensation is not made.
Used to set the slip compensation response time. (*)
Slip compensation is not made in the constant power range
0
(frequency range above the frequency set in Pr. 3).
- - - Slip compensation is made in the constant power range.
, Pr. 96
Factory
Setting Range
Setting
- - - 0 to 50%, - - -
0.5s 0.01 to 10s
- - - 0, - - -
Function
131

Auxiliary function

, Pr. 97 )
Remarks
Setting is enabled
when Pr. 30 = "1"
×100[%]
2