YASKAWA G7 Series Technical Manual page 109

Control Name
Method (Parameter Number)
ASR proportional
gain 1 (C5-01) and
ASR proportional
gain 2 (C5-03)
ASR integral time 1
(high-speed) (C5-02)
and
ASR integral time 2
(low-speed) (C5-04)
Flux vector
control
ASR switching
(A1-02 = 3)
frequency (C5-07)
ASR primary delay
time (C5-06)
Carrier frequency
selection (C6-02)
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Table 4.4 Adjusted User Parameters (Continued)
Factory
Performance
Setting
• Torque and speed
response
20.00
• Controlling hunting
and vibration
• Torque and speed
response
0.500sec
• Controlling hunting
and vibration
Switching the ASR
proportional gain and
integral time 0.0Hz
according to the
output frequency
• Controlling hunting
0.004sec
and vibration
• Reducing motor
magnetic noise Depends
• Controlling hunting on the
and vibration at low capacity.
speeds (3Hz or less)
Adjustment Suggestions
Recommended
Adjustment Method
Setting
• Increase the setting if
torque or speed response is
slow.
10.00 to 50.00
• Reduce the setting if
hunting or vibration
occurs.
• Reduce the setting if
torque or speed response is
0.300
slow.
to
• Increase the setting if
1.000sec
hunting or vibration
occurs.
Set the output frequency at
which to change the ASR
0.0 to max. proportional gain and inte-
output gral time when the same val-
frequency ues cannot be used for both
high-speed and low-speed
operation.
Increase the setting if
0.004 to 0.020 machine rigidity is low and
the system vibrates easily.
• Increase the setting if
motor magnetic noise is
high.
2.0 kHz to
• Reduce the setting if
default
hunting or vibration occurs
at low to middle-range
speeds.
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