YASKAWA GA700 Technical Manual page 210

3.10 Fine Tuning during Test Runs (Adjust the Control Function)
Issue
• High speed
• Low speed
• Torque or speed
response are slow.
• Hunting or oscillation
• High speed
• Low speed
• C5-07 [ASR Gain
• High speed
The drive cannot find
speed response for low
speed or high speed.
• Low speed
C5-06 [ASR Delay Time]
Hunting or oscillation
*4
*1 Default value changes when o2-04 [Drive Model (KVA) Selection] and C6-01 [Normal / Heavy Duty Selection] values change.
*2 Default value changes when o2-04 [Drive Model (KVA) Selection] value changes.
*3 Refer to the section on C5-xx parameters for more information about speed control (ASR).
*4 The best values for a no-load operation are different than the best values for actual loading operation.
210
Parameter Number
• If torque or speed
C5-01 [ASR response are slow,
Proportional Gain 1 increase the setting
(P)] value in increments of
5.00.
C5-03 [ASR • If hunting or oscillation
Proportional Gain 2 occur, decrease the
(P)] setting value.
*3
• If torque or speed
C5-02 [ASR Integral response are slow,
Time 1 (I)] decrease the setting
value.
• If hunting or oscillation
C5-04 [ASR
Proportional Gain 2 occur, increase the
(P)] setting value.
*3
Switchover Frequency]
*4
C5-01 [ASR
Proportional Gain 1
Change the ASR
(P)]
proportional gain and
C5-02 [ASR Integral
ASR integral time to
Time 1 (I)]
conform to the output
frequency.
C5-03 [ASR
Proportional Gain 2
(P)]
*3
C5-04 [ASR Integral
Time 2 (I)]
• If torque or speed
response are slow,
decrease the setting
value in increments of
0.010.
• If the rigidity of the
machine is
unsatisfactory and
vibration is possible,
increase the setting
value.
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Solution Default Setting
20.00
0.500 s
0.0 Hz
0.004 s
Recommended Setting
10.00 - 50.00
0.300 to 1.000 s
0.0 to maximum output
frequency
0.004 to 0.020 s