Delta Electronics VFD-DD Series - Page 57

Chapter 4 Parameter Settings|DD Series
4-33
Magnetic Pole Re-orientation (PM)
Control mode
FOCPM
Factory setting: 0
Settings
0:No function
1:Reset magnetic pole position
 This function is used to search magnetic pole position and is only available on permanent magnet motor.
 When encoder origin-adjustment function (Pr.01-09= 360.0) is not available, the motor operation efficiency
can only achieve up to 86% of its best efficiency. In this case, if user needs to improve the operation
efficiency, reapply power or set Pr.01-10=1 to measure magnetic pole position again.
Motor Auto Tuning (IM)
Control mode
SVC FOCPG
Factory setting: 0
Settings
0: No function
1: Rolling test
2: Static test
3: Reserved
 Set Pr.01-11 to 1 or 2, Press 【Run】to begin auto tuning. The measured value will be written into Pr.1-17
to Pr.01-20 (Rs, Rr, Lm, Lx, no-load current).
 AUTO-Tuning Process (rolling test):
1. Make sure that all the parameters are set to factory settings and the motor wiring is correct.
2. Make sure the motor has no-load before executing auto-tuning and the shaft is not connected to any
belt or gear motor. It is recommended to perform auto-tuning in static test if the motor can’t separate
from the load.
3.
Pr. of Motor
Motor Rated
Frequency
01-32
Motor Rated
Voltage
01-33
Motor Full-load
Current
01-12
Motor Rated
Power
01-13
Motor Rated
Speed
01-14
Motor Pole
Numbers
01-15
4. Set Pr.01-11=1 and press【Run】, the drive will begin auto-tuning. Please be aware of the motor that
it starts spinning as【Run】 is pressed.
5. When auto-tuning is completed, please check if the measured values are written into Pr.01-16
~01-20).
6. Mechanical equivalent circuit
V
S
I
Rs
Rr
Lx
Lm
Pr.01-17
Pr.01-20
Pr.01-19
Pr.01-18
※ When Pr.01-11 is set to 2 (static test), user needs to write no-load current value of motor into
Pr.01-16.