Delta MS300 Series User Manual page 471

Chapter 12 Description of Parameter SettingsMS300
PM SVC adjustment flowchart for operation starts with load
(3)
Increase PM current level of
open-loop low-speed area
(Pr.10-31)
Increase voltage
compensation gain
Pr.07-38
Increase speed estimation bandwidth
Increase low-pass filter gain
Pr.10-34
Low-frequency
(1/10 rotor speed)
unsufficient loaded capability
The speed cannot follow
during acceleration or
over current stall
Pr.10-32
Output frequency
Periodic low-frequency wave
9. Running Test
with Load
B1. Low-frequency carrier
performance
(1/10 rated freq. and below)
Low-frequency
carrier performance
NO
is normal?
YES
B2. Test the loaded
acceleration
performance
NO
Acceleration is
normal?
YES
10. Test of Speed
Steady State
Performance
NO
Steady state of the
speed is normal?
YES
Finish
462
Decrease PM current level
of the open-loop low-speed
area
(Pr.10-31)
Low-frequency
(1/10 rotor speed)
over current
Decrease speed estimation bandwidth
Pr.10-32
Decrease low-pass filter gain
Pr.10-34
Output frequency
Strong high-frequency
vibration or oc