Delta MS300 Series User Manual page 469

Chapter 12 Description of Parameter SettingsMS300
PM SVC adjustment flowchart for operation with no load / light load
(2)
SPM > Increase Pr.10-42
Initial angle detection pulse
IPM > Increase Pr.10-52
Injection magnitude
Increase torque offset
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)
value
Start running
direction error
Pr.07-26
No-load current is too high
Pr.10-34
Output frequency
Periodic low-frequency wave
Motor stall at max.
rotor speed
8. No-load
Running
A1. Start running
NO
direction is
correct?
YES
A2. No-load current
runs with ½ of rated
rotor speed
NO
No-load running
current is normal?
YES
NO
A3. Acceleration to
rated frequency is
stable?
YES
A4. Reach
NO
max. output
frequency?
YES
9. Running Test
with Load
460
SPM > Decrease Pr.10-42
Initial angle detection pulse value
（Too high pulse bandwidth may
角度偵測脈衝頻寬
cause ocA）
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
Strongly high-frequency
vibration of output frequency