Delta MH300 Series

Chapter 12 Description of Parameter SettingsMH300
12.2-15
Parameter
Description
Default
Pr.11-00
System control
0
Pr.11-01
Per unit of system inertia
256
Pr.11-02
ASR1/ASR2 switch frequency
(it is suggested to set the switch frequency
higher than Pr.10-39)
7.00 Hz
Pr.11-03
ASR1 low-speed bandwidth
10 Hz
Pr.11-04
ASR2 high-speed bandwidth
10 Hz
Pr.11-05
ASR zero-speed bandwidth
10 Hz
III. PM FOCPG adjustment flowchart for operation starts with load
 Adjustment for operation with load
C1. Low-frequency load performance, when the drive operates under ASR1 / ASR2 switch
frequency (Pr.11-02):
a. If the low-speed frequency cannot start-up with load or the rotor speed is not smooth,
increase Pr.11-03 (ASR1 low-speed bandwidth), or increase Pr.11-01 (Per-unit system
inertia).
b. If an oscillation or over current (oc) error occurs at low-speed frequency, decrease Pr.11-
(ASR1 low-speed bandwidth) or decrease Pr.11-01 (Per-unit system inertia).
Is low-frequency load
performance normal?
Increase ASR1 low-speed
bandwidth Pr.11-03
Low-speed frequency
rotates not well
Decrease ASR1 low-speed
bandwidth Pr.11-03
Low-frequency
oscillation or oc
Is accelerated rated
frequency normal?
調高
調高
ASR1
頻寬
Pr11-03
Cannot follow the accel. Time,
the feedback is too slow
NO
NO
YES
YES
Finish
Increase ASR2 bandwidth Pr.11-04
Increase ASR1 bandwidth Pr.11-03
Decrease ASR2 bandwidth Pr.11-04
Decrease ASR1 bandwidth Pr.11-03
Accelerate too much, causes
oscillation or ocA
11. Running Test
with Load
C1.Low-frequency Load
Performance
(Freq. of Pr.11-02 and below)
C2. Load Accel.
Performance Test