YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 381

Con-
Control
stant Name
Method
Number
ASR propor-
C5-01 tional (P)
gain 1
ASR propor-
C5-03 tional (P)
gain 2
ASR inte-
C5-02 gral (I) time
1
ASR inte-
Flux vector
C5-04 gral (I) time
control
2
(A1-02 = 3)
ASR switch-
C5-07 ing fre-
quency
ASR pri-
C5-06 mary delay
time
Hunting-pre-
N1-02
vention gain
Carrier fre-
C6-02 quency
selection
V/f control
(A1-02 = 0
or 1)
Torque com-
C4-01 pensation
gain
Mid. output
E1-08 frequency
voltage (VC) • Improving torque at
Min. output
frequency
E1-10
voltage
(VMIN)
* 1. Varies depending on capacity.
* 2. The setting is given for 200 V Class Inverters. Double the voltage for 400 V Class Inverters.
Note 1. Do not change C4-01 (Torque compensation gain) from its factory setting of 1.00 when using open-loop vector 1 control.
2. If speeds are inaccurate during regeneration in open-loop vector 1 control, enable Slip compensation selection during regeneration (C3-04 = 1). If
speeds are inaccurate in the high-speed range, enable Output voltage limit operation selection (C3-05 = 1).
Table 6.4 Control-related Adjustments (Continued)
Performance
• Increasing torque and
speed response
• Controlling hunting
and vibration
• Increasing torque and
speed response
• Controlling hunting
and vibration
Switching the ASR pro-
portional gain and inte-
gral time according to
the output frequency.
• Controlling hunting
and vibration
• Controlling hunting
and vibration in mid-
dle-range speeds (10
to 40 Hz)
• Reducing motor mag-
netic noise
• Controlling hunting
and vibration at low
and medium speeds
• Improving torque at
low speeds (10 Hz or
lower)
• Controlling hunting
and vibration for light
loads
low speeds
• Controlling shock at
startup
Using Inverters for Elevating Machines
Recom-
Factory
mended
Setting
Setting
• Torque or speed response
10.00 to
20.00
50.00
• Hunting or vibration
• Torque or speed response
0.300 to
0.500 s
1.000 s • Hunting or vibration
Set the output frequency at
which to change the ASR
0.0 to max. proportional gain and inte-
0.0 Hz (no
output fre- gral time when the same val-
switching)
quency ues cannot be used for both
high-speed and low-speed
operation.
Machine rigidity is low and
0.004 to
0.004 s the system vibrates easily:
0.020
Increase the setting
• Torque is insufficient for
1.00 0.50 to 2.00
• Hunting or vibration
• Motor magnetic noise is
• Hunting or vibration
1 to F
*1
• Torque is insufficient at
1.00 0.50 to 1.50
• Hunting or vibration
13.0 to
*2
15.0 V
• Torque is insufficient at
*2
16.0 V
• Shock at startup is large:
7.0 to
*2
9.0 V
*2
10.0 V
Adjustment Method
is insufficient: Increase
the setting
occurs: Reduce the setting
is insufficient: Reduce the
setting
occurs: Increase the set-
ting
heavy loads: Reduce the
setting
occurs for light loads:
Increase the setting
high: Increase the setting
occurs at low to middle-
range speeds: Reduce the
setting
low speeds: Increase the
setting
occurs for light loads:
Reduce the setting
low speeds: Increase the
setting
Reduce the setting
6-
175