Motor Parameters; Motor Rated Current; Motor No-Load Current; Torque Compensation - Delta Electronics AC Motor Drive VFD-EL User Manual

Group 7: Motor Parameters
07.00

Motor Rated Current

Settings
Use the following formula to calculate the percentage value entered in this parameter:
(Motor Current / AC Drive Current) x 100%
with Motor Current=Motor rated current in A on type shield
AC Drive Current=Rated current of AC drive in A (see Pr.00.01)

Motor No-load Current

07.01
Settings
The rated current of the AC drive is regarded as 100%. The setting of the Motor no-load
current will affect the slip compensation.
The setting value must be less than Pr.07.00 (Motor Rated Current).
07.02

Torque Compensation

Settings
This parameter may be set so that the AC drive will increase its voltage output to obtain a
higher torque.
Too high torque compensation can overheat the motor.
07.03 Slip Compensation
Settings
While driving an asynchronous motor, increasing the load on the AC motor drive will cause an
increase in slip and decrease in speed. This parameter may be used to compensate the slip by
increasing the output frequency. When the output current of the AC motor drive is bigger than
the motor no-load current (Pr.07.01), the AC drive will adjust its output frequency according to
this parameter.
07.04
Reserved
07.05
Reserved
07.06
Reserved
07.07
Reserved
07.08
Reserved
Revision August 2008, 2ELE, V1.02
30% FLA to 120% FLA
0% FLA to 90% FLA
0.0 to 10.0
0.00 to 10.00
Chapter 4 Parameters|
Factory Setting: FLA
Factory Setting: 0.4*FLA
Factory Setting: 0.0
Factory Setting: 0.00
Unit: 1
Unit: 1
Unit: 0.1
Unit: 0.01
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