YASKAWA Varispeed f7

Using Inverters for Elevating Machines
6-173
* 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 control.
2. If speeds are inaccurate during regeneration in open-loop vector 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).
3. Do not use Slip compensation gain (C3-01) during V/f control (A1-02 = 0). (It is not used with the factory setting.)
Flux vector
control
(A1-02 = 3)
C5-01
ASR propor-
tional (P)
gain 1
• Increasing torque and
speed response
• Controlling hunting
and vibration
20.00
10.00 to
50.00
• Torque or speed response
is insufficient: Increase
the setting
• Hunting or vibration
occurs: Reduce the setting
C5-03
ASR propor-
tional (P)
gain 2
C5-02
ASR inte-
gral (I) time
1
• Increasing torque and
speed response
• Controlling hunting
and vibration
0.500 s
0.300 to
1.000 s
• Torque or speed response
is insufficient: Reduce the
setting
• Hunting or vibration
occurs: Increase the set-
ting
C5-04
ASR inte-
gral (I) time
2
C5-07
ASR switch-
ing fre-
quency
Switching the ASR pro-
portional gain and inte-
gral time according to
the output frequency.
0.0 Hz (no
switching)
0.0 to max.
output fre-
quency
Set the output frequency at
which to change the ASR
proportional gain and inte-
gral time when the same val-
ues cannot be used for both
high-speed and low-speed
operation.
C5-06
ASR pri-
mary delay
time
• Controlling hunting
and vibration
0.004 s
0.004 to
0.020
Machine rigidity is low and
the system vibrates easily:
Increase the setting
V/f control
(A1-02 = 0
or 1)
N1-02
Hunting-pre-
vention gain
• Controlling hunting
and vibration in mid-
dle-range speeds (10
to 40 Hz)
1.00 0.50 to 2.00
• Torque is insufficient for
heavy loads: Reduce the
setting
• Hunting or vibration
occurs for light loads:
Increase the setting
C6-02
Carrier fre-
quency
selection
• Reducing motor mag-
netic noise
• Controlling hunting
and vibration at low
and medium speeds
*1
1 to F
• Motor magnetic noise is
high: Increase the setting
• Hunting or vibration
occurs at low to middle-
range speeds: Reduce the
setting
C4-01
Torque com-
pensation
gain
• Improving torque at
low speeds (10 Hz or
lower)
• Controlling hunting
and vibration for light
loads
1.00 0.50 to 1.50
• Torque is insufficient at
low speeds: Increase the
setting
• Hunting or vibration
occurs for light loads:
Reduce the setting
E1-08
Mid. output
frequency
voltage (VC)
• Improving torque at
low speeds
• Controlling shock at
startup
2.0 V
*2
5.0 to
7.0 V
*2
• Torque is insufficient at
low speeds: Increase the
setting
• Shock at startup is large:
Reduce the setting
E1-10
Min. output
frequency
voltage
(VMIN)
Table 6.4 Control-related Adjustments (Continued)
Control
Method
Con-
stant
Number
Name Performance
Factory
Setting
Recom-
mended
Setting
Adjustment Method