Delta C2000 Series User Manual page 624

II. IPM Sensorless FOC Mode – No-load / Light-duty Adjustment
Increase Pr.10-52 injection magnitude
Increase Pr.10-42 initial angle detection
pulse value
(Note: too large pulse may cause oc error)
Wrong started direction
causes ocA
Increase ASR2 bandwidth
Pr.11-04
Increase speed estimation
bandwidth Pr.10-32
Cyclicity low-frequency wave
of the motor frequency
Increase speed estimation
bandwidth Pr.10-32
Increase low-pass filter gain
Pr.10-34
Vibration or motor stall at max.
rotor speed
Chapter 12 Description of Parameter SettingsC2000
8. No-load
Running
(a) Set speed regulator ASR
Pr.11-00=1 ASR auto-tuning
(b) No-load started to ½ rated
rotor speed
Started with correct
direction?
NO
YES
9. No-load/Light-load
Acceleration Test
YES
NO
A1. Rated frequency
runs stable?
YES
A2. Reach max.
NO
output frequency?
YES
10. Running Test
with Load
12.2-00-29
Increase Pr.10-52
Angle detection of high
frequency injection
When the motor rated frequency
approaches
Decrease ASR2 bandwidth
Pr.11-04
Decrease speed estimation
bandwidth Pr.10-32
Strong high-frequency
vibration of output frequency