Delta CFP2000 Series User Manual page 447

Chapter 12 Description of Parameter SettingsCFP2000
II. PMSVC Adjustment for Operation without Load / with Light-load
SPM > Increase Pr.10-42
Initial angle detection pulse
IPM > Increase Pr.10-52
Injection magnitude
Increase torque offset
Pr.07-26
Increase low-pass filter gain
Increase speed estimation
bandwidth Pr.10-32
Increase low-pass filter gain Pr.10-34
Increase carrier frequency Pr.00-17
（Carrier frequency need to be >10
times of the max. output frequency)
 Adjustment for Operation with Light-load
8. Start the motor with no-load / light-load, and operates to 1/2 of the rated rotor speed
A1. Start operation direction:
a. If the start operation direction is wrong
SPM: increase the current proportion for Pr.10-42 (Initial angle detection pulse value) to
improve the accuracy of the angle detection.
IPM: Increase the voltage for Pr.10-52 (Injection magnitude) to improve the accuracy of the
angle detection.
value
NO
Start running
direction error
NO
No-load current is too high
Pr.10-34
NO
Output frequency
Periodic low-frequency wave
NO
Motor stall at max.
rotor speed
8. No-load
Running
A1. Start running
direction is
correct?
YES
A2. No-load current
runs with ½ of rated
rotor speed
No-load running
current is normal?
YES
A3. Acceleration to
rated frequency is
Strongly high-frequency
stable?
vibration of output frequency
YES
A4. Reach
max. output
frequency?
YES
9. Running Test
with Load
12.2-00-4
SPM > Decrease Pr.10-42
Initial angle detection pulse value
（Too high pulse bandwidth may
cause ocA）
角度偵測脈衝頻寬
Press RUN, then ocA
(over current) occurs
No-load current is
10%~20% of rated
current range
Increase low-pass filter gain
Pr.10-34
Decrease speed estimation
bandwidth Pr.10-32