YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 111

Control Name (Constant
Method Number)
Carrier frequency
selection (C6-02)
Open-loop
vector 1
control
Middle output fre-
(A1-02 = 2)
quency voltage
(E1-08)
Minimum output fre-
quency voltage
(E1-10)
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
ASR switching fre-
control
quency (C5-07)
(A1-02 = 3)
ASR primary delay
time (C5-06)
Carrier frequency
selection (C6-02)
ASR proportional gain
1 (C5-01) and
ASR proportional gain
Open-loop
2 (C5-03)
vector 2
control
(A1-02 = 4)
ASR integral time 1
(high-speed) (C5-02)
and
ASR integral time 2
(low-speed) (C5-04)
Table 4.4 Adjusted User Constants (Continued)
Factory
Performance
Setting
• Reducing motor
magnetic noise
Depends
• Controlling hunting
on capac-
and vibration at low
ity
speeds (10 Hz or
less)
• Improving torque at Depends
low speeds on capac-
• Controlling shock at ity and
startup voltage
• Torque and speed
response
20.00
• Controlling hunting
and vibration
• Torque and speed
response
0.500 s
• Controlling hunting
and vibration
Switching the ASR
proportional gain and
integral time accord- 0.0 Hz
ing to the output fre-
quency
• Controlling hunting
0.004 s
and vibration
• Reducing motor
magnetic noise Depends
• Controlling hunting on the
and vibration at low capacity.
speeds (3 Hz or less)
• Torque and speed
response
10.00
• Controlling hunting
and vibration
• Torque and speed
response
0.500 s
• Controlling hunting
and vibration
Adjustment Suggestions
Recom-
mended Adjustment Method
Setting
• Increase the setting if
motor magnetic noise is
0 to high.
default • Reduce the setting if hunt-
ing or vibration occurs at
low speeds.
• Increase the setting if
Default to
torque or speed response is
Default + 1
slow.
*1
• Reduce the setting if shock
or 2 V
at startup is large.
• Increase the setting if
torque or speed response is
10.00 to
slow.
50.00
• Reduce the setting if hunt-
ing or vibration occurs.
• Reduce the setting if
torque or speed response is
0.300 to
slow.
1.000 s
• Increase the setting if hunt-
ing or vibration occurs.
Set the output frequency at
which to change the ASR
0.0 to max. proportional gain and inte-
output fre- gral time when the same val-
quency ues cannot be used for both
high-speed and low-speed
operation.
Increase the setting if
0.004 to
machine rigidity is low and
0.020 s
the system vibrates easily.
• Increase the setting if
motor magnetic noise is
high.
2.0 kHz to
• Reduce the setting if hunt-
*2
default
ing or vibration occurs at
low to middle-range
speeds.
• Increase the setting if
torque or speed response is
slow. (Refer to Procedure
10.00 to
for Increasing the Speed
50.00
Response below.)
• Reduce the setting if hunt-
ing or vibration occurs.
• Reduce the setting if
torque or speed response is
0.300 to
slow.
1.000 s
• Increase the setting if hunt-
ing or vibration occurs.
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