YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 112

Control
Method
Open-loop
vector 2
control
(A1-02 = 4)
* 1. The setting is given for 200 V Class Inverters. Double the voltage for 400 V Class Inverters.
* 2. The factory setting for 400V 132kW and 220kW flax vector control (A1-02 = 3) is 1.5 kHz, for software version VSG123032 or later.
-20
4
Table 4.4 Adjusted User Constants (Continued)
Name (Constant
Performance
Number)
Switching the ASR
proportional gain and
ASR switching fre-
integral time accord-
quency (C5-07)
ing to the output fre-
quency
ASR primary delay • Controlling hunting
time (C5-06) and vibration
ASR primary delay • Controlling hunting
time 2 (C5-10) and vibration
• Speed response
Integral time of speed
• Controlling hunting
estimator (N4-07)
and vibration
High-speed propor- • Speed response
tional gain of speed • Controlling hunting
estimator (N4-10) and vibration
• Reducing motor
magnetic noise
Carrier frequency
• Controlling hunting
selection (C6-11)
and vibration at low
speeds (3 Hz or less)
Recom-
Factory
mended
Setting
Setting
Set the output frequency at
which to change the ASR
0.0 to max. proportional gain and inte-
0.0 Hz 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
0.04 to
machine rigidity is low and
0.010 s
0.020 s
the system vibrates easily.
(Enabled in the range 0 to
35 Hz. Refer to Procedure
0.010 to
0.035 s
for Increasing the Speed
0.035 s
Response below.)
Increase the setting if
machine rigidity is low and
0.010 to the system vibrates easily.
0.010 s
0.035 s (Enabled above 35 Hz. Refer
to Procedure for Increasing
the Speed Response below.)
(Enabled below the N4-11
setting.)
• Reduce the setting if speed
response is slow. (Typi-
0.015 to cally, reduce in intervals of
0.030 ms
0.060 ms 0.05. Refer to Procedure
for Increasing the Speed
Response below.)
• Increase the setting if hunt-
ing or vibration occurs.
(Enabled below the N4-11
setting.)
• Increase the setting if
speed response is slow.
(Typically, increase in
15 10 to 60
intervals of 5. Refer to
Procedure for Increasing
the Speed Response
below.)
• Reduce the setting if hunt-
ing or vibration occurs.
• Increase the setting if
motor magnetic noise is
Depends high.
Default
on the • Reduce the setting if hunt-
value
capacity. ing or vibration occurs at
low to middle-range
speeds.
Adjustment Method