Lenze E82xVxxxKxxxxx - Manual (Page 268)

Function library
Optimising the operating behaviour
Slip compensation
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268 EDS82EV903 EN 3.0
10.3 Optimising the operating behaviour
10.3.1 Slip compensation
Description
Under load, the speed of an asynchronous machine is reduced. This load dependent speed
drop is called slip. The slip can be partly compensated by setting C0021 accordingly. The slip
compensation is effective for all control modes (C0014).
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0021 Slip
compensation
0.0 −50.0 {0.1 %} 50.0 C0021 is calculated and saved
during the motor parameter
identification with C0148.
^ 268
Automatic adjustment
The slip compensation is calculated during the motor parameter identification and
entered under C0021.
Preparing motor parameter identification
You must enter the motor data of the motor nameplate:
ƒ Rated motor speed (C0087)
ƒ Rated motor current (C0088)
ƒ Rated motor frequency (C0089)
ƒ Rated motor voltage (C0090)
ƒ Motor cos
j (C0091)
Motor parameter identification
Carry out the motor parameter identification. ( ^ 315 )
Automatically detected parameters
V/f−rated frequency (C0015), slip compensation (C0021) and motor stator inductivity
(C0092) are calculated and saved. The total resistance of motor cable and motor is
measured and saved as motor stator resistance (C0084).