YASKAWA V1000 Series Installation & Start-Up Manual page 399

No. Name
Speed Feedback
n8-45
Detection Control
<30>
Gain
Pull-In Current
n8-47
Compensation Time
<30>
Constant
n8-48
Pull-In Current
<30>
n8-49
Load Current
<30>
Heavy Load Current
n8-50
Level (for PM)
n8-51 Acceleration Time
Pull-In Current
<30>
n8-55
Load Inertia
<30>
High Performance
n8-56
Control Selection
<12> Default setting value is dependent on parameter o2-04, Drive/kVA Selection.
<30> For use with PM motor.
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Description
n8: Permanent Magnet (PM) Motor Control
Use n8 parameters to control the PM motor control.
Sets the gain for internal speed feedback
detection control. This parameter does not
typically require adjustment.
Increase this setting if hunting occurs.
Decrease to lower the response.
Sets the time constant to make the pull-in
current and actual current value agree.
Decrease the value if the motor begins to
oscillate.
Increase the value if it takes too long for the
current reference to equal the output current.
Defines the amount of current provided to the
motor during no load operation at a constant
speed.
Set as a percentage of the motor rated current.
Increase this setting when hunting occurs while
running at a constant speed.
Sets the amount of d-axis current when using
Energy Saving control.
Sets the load level to begin high-efficiency
control of an PM motor.
Sets the pull-in current during acceleration as a
percentage of the motor rated current (E5-03).
Set to a high value when more starting torque
is needed.
This value should be set to correspond to load
inertia.
0: The inertia ratio between the motor and the
load just less than 1:10.
1: The inertia ratio between the motor and the
load is 1:10 to 1:30.
2: The inertia ratio between the motor and the
load is 1:30 to 1:50.
3: The inertia ratio between the motor and the
load is greater than 1:50.
0: Disabled
1: Enabled
B.2 Parameter Table
Control
Mode
Range Def. Addr.
O
V/ P
Hex
L
f M
V
0.0 to
1.0 − − A 538
10.0
0.0 to
5.0 s − − A 53A
100.0 s
0 to
0% − − A 53B
200%
-200 to
0% − − A 53C
0%
50 to
80% − − A 53D
255%
0 to
50% − − A 53E
200%
− − A 56E
0 to 3 0
− − A 56F
0,1 1
Pg.
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—
—
—
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B
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