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YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
1 : Enabled
Note:
If the DC bus voltage does not become stable with light loads and the drive detects
ov [Overvoltage]
, set this parameter to 1.
n1-14: DC Bus Stabilization Time
No.
(Hex.)
Name
Description
Default
(Range)
n1-14
(1B5A)
Expert
DC Bus Stabilization
Time
Sets a length of time for the drive to suppress oscillation in relation to the
DC bus voltage. Set
n1-13 = 1 [DC Bus Stabilization Control = Enabled]
to
enable this parameter.
100.0 ms
(50.0 - 500.0 ms)
Note:
Adjust this parameter in 100 ms increments.
n1-15: PWM Voltage Offset Calibration
No.
(Hex.)
Name
Description
Default
(Range)
n1-15
(0BF8)
Expert
PWM Voltage Offset
Calibration
Sets the calibration method that the drive uses to decrease torque/current
ripple.
Determined by A1-02
(0 - 2)
This calibration function lets the drive suppress the torque ripple of a motor. Usually it is not necessary to change
this setting.
0 : No Calibration
1 : One Time Calibrate at Next Start
2 : Calibrate Every Time at Start
n1-16: Hunting Prevention High Fc Gain
No.
(Hex.)
Name
Description
Default
(Range)
n1-16
(0BFB)
Hunting Prevention
High Fc Gain
Sets the gain for the hunting prevention function. This parameter functions
best with a high carrier frequency. Usually it is not necessary to change this
setting.
Determined by o2-04
(0.00 - 2.50)
Set
n1-01 = 2 [Hunting Prevention Selection = Enabled (High Carrier Frequency)]
to enable this function.
If the motor oscillates, set
n1-01 = 2
. If that does not have an effect, increase this parameter in 0.2-unit
increments.
n1-17: Hunting Prevent High Fc Filter
No.
(Hex.)
Name
Description
Default
(Range)
n1-17
(0BFC)
Expert
Hunting Prevent High
Fc Filter
Sets the responsiveness of the hunting prevention function. Usually it is not
necessary to change this setting.
500 ms
(0 - 1000 ms)
When
n1-01 = 2 [Hunting Prevention Selection = Enabled (High Carrier Frequency)]
, if the motor stalls when
the load changes, increase the value set in this parameter in 100 ms increments.
If you set
n1-01 = 2
and you cannot suppress hunting, increase the value set in this parameter in 100 ms
increments.
n1-20: Voltage Calibration Duration
No.
(Hex.)
Name
Description
Default
(Range)
n1-20
(1588)
Expert
Voltage Calibration
Duration
Sets the time for voltage detection circuit calibration during startup. Usually
it is not necessary to change this setting.
50 ms
(10 - 500 ms)
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV