Delta VFD-EL-W Series User Manual

Chapter 4 Parameters｜VFD-EL-W
111
Motor auto-tuning process:
1. Ensure that all the parameters are set to defaults and the motor wiring is correct.
2. Ensure that the motor is not loaded before executing auto-tuning and that the shaft is not
connected to any belt or reducer.
3. Enter the correct settings for Pr.01.01 Motor Rated Frequency (Fbase), Pr.01.02 Motor
Rated Voltage (Vbase), Pr.07.00 Motor Rated Current, and Pr.07.06 Motor Rated Slip
(Motor 0).
4. After you set Pr.07.04 to 2, the AC motor drive executes auto-tuning immediately after
receiving a RUN command. (NOTE: be careful for personnel and mechanical damage
from the motor operation.) The total auto-tuning time is 15 seconds = Pr.01.09 + Pr.01.10.
(Higher-power drives need longer acceleration and deceleration time.)
5. After executing auto-tuning, check to ensure there are values filled in for Pr.07.01 and
Pr.07.05. If not, press the RUN key after setting Pr.07.04 again to repeat auto-tuning.
6. If the result of above auto-tuning is correct, set Pr.00.10 to 1 and set other parameters
according to your application requirements.
Related parameters:
 Pr.01.01 Motor Rated Frequency
 Pr.01.02 Motor Rated Voltage
 Pr.07.00 Motor Rated Current
 Pr.07.01 Motor No-load Current
 Pr.07.05 Motor Resistance R1
 Pr.07.06 Motor Rated Slip
NOTE: In vector control mode, it is not recommended to have motors run in parallel, or
operate the motor with a rated power that exceeds the rated power of the AC motor drive.
07.05
Motor Resistance R1 (Line to Line)
Default: 0
Settings
0–65535 mΩ
 This parameter is automatically set after the motor auto-tunes. You can also set this parameter
according to the known motor correct parameter. This resistance value is the R value between
phase and phase of the motor. Regardless of the motor wiring method, this resistance value is
the measured value of any two motor leads.
07.06
Motor Rated Slip
Default: 3.00
Settings
0.00–20.00 Hz
 Sets the motor rated slip. Enter the actual rated RPM from the motor nameplate.
 Refer to the rated RPM and the number of poles from the motor nameplate and use the following
equation to calculate the rated slip:
Rated Slip = F – N × P/ 120
F: Rated frequency (Hz)
N: Rated speed (rpm)
P: number of poles (Pole)

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English