YASKAWA CIMR-VU BA0001 Technical Manual page 393

No. Name
Speed Feedback Detection
n8-45
Control Gain
Pull-In Current
n8-47 Compensation Time Constant
n8-48
Pull-In Current
<2>
n8-49
d-Axis Current for High-
<2>
Efficiency Control
n8-51
Acceleration Pull-In Current
Voltage Error Compensation
n8-54
Time Constant
n8-55 Load Inertia
n8-62
Output Voltage Limit
<5>
n8-63
Output Voltage Limit Gain
<6>
1
Speed Feedback Detection
n8-65
Control Gain during ov
<7>
Suppression
n8-68
Output Voltage Limit Gain 2 Sets the voltage detection level adjustment gain.
<6>
n8-87
Output Voltage Limit
<6> Selection
n8-88
Output Voltage Limit
<6>
Switching Current Level
Output Voltage Limit
n8-89
Switching Current Hysteresis
<6>
Width
n8-90
Output Voltage Limit
<6>
Switching Speed
n8-91
Id Limit for Output Voltage
<6>
Limit Control
<1> Default setting value is dependent on parameter o2-04, Drive Model Selection.
<2> Parameter can be changed during Run.
<3> Setting range varies depending on drive software version. Software versions PRG: 1018 and later disable pull-in current when n8-48 = 0 and allow
this parameter to be changed during run.
PRG: 1018 and later: 0% or 20 to 200%
PRG: 1017 and earlier: 20 to 200%
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
Description
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 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.
Sets the time constant for voltage error compensation. Adjust
the value when hunting occurs at low speed.
Increase in steps of 0.1 or disable the compensation by setting
n8-45 to 0 when hunting occurs with sudden load changes or
when oscillations occur at start.
Sets the ratio between motor and machine inertia.
0: less than 1:10.
1: between 1:10 to 1:30.
2: between 1:30 to 1:50.
3: higher than 1:50.
Sets the limit for the output voltage. Adjustment is normally
needed only if the input voltage is below the n8-62 set value.
In this case set n8-62 to the input voltage.
Sets the gain used for output voltage limit.
Sets the gain used for internal speed feedback detection during
ov Suppression
Determines the method of the output voltage limit.
0: Feedback method
1: Feed forward method Use the feed forward method if
oscillation occurs in the constant output range.
Sets the current level to switch the output voltage limit
sequence. Set as a percentage of the motor rated current
(E5-03).
Determines the hysteresis of the current level to switch the
output voltage limit sequence. Set as a percentage of the motor
rated current (E5-03).
Sets the speed level to switch the output voltage limit sequence.
Set as a percentage of the maximum output frequency (E1-04). 0 to 200% 200% –
Sets the amount of pull-in current that flows through the motor
while operating at constant speed. Set as a percentage of the
motor rated current (E5-03). Increase this setting if hunting
occurs at constant speed.
B.2 Parameter Table
Control
Mode
Range Def.
O
V/ P
L
f M
V
0.00 to
0.80 − − A
10.00
0.0 to
5.0 s − − A
100.0 s
<3>
30% − − A
<4>
0% − − A
0 to 200% 50% − − A
0.00 to
1.00 s − − A
10.00 s
0 to 3 0 − − A
0.0 to 200
− − A
230.0 Vac
0.00 to
1.00 – – A
100.00
0.00 to
1.50 − − A
10.00
0.50 to
0.95 – – A
1.50
0, 1 0 – – A
0 to 400% 400% – – A
0 to
3% – – A
[n8-88]
– A
-200 to
-50% – – A
0%
Addr.
Pg.
Hex
538 243
53A 243
53B 243
53C 243
53E 244
56D 244
56E 244
57D 244
57E 245
65C 245
237 245
2BC 245
2BD 245
2BE 245
2BF 245
2F7 246
B
393