394
YASKAWA
TOEPYAIHV6002A HV600 Drive Programming
■
n3-21: HSB Current Suppression Level
No.
(Hex.)
Name
Description
Default
(Range)
n3-21
(0579)
HSB Current Suppression
Level
Sets the upper limit of the current that is suppressed at the time of overexcitation deceleration as a
percentage of the drive rated current.
100%
(0 - 150%)
If flux saturation during Overexcitation Deceleration makes the motor current become more than the value set in this
parameter, the drive will automatically decrease the overexcitation gain. If
oC [Overcurrent]
,
oL1 [Motor Overload]
,
or
oL2 [Drive Overloaded]
occur during overexcitation deceleration, decrease the setting value.
If repetitive or long overexcitation deceleration cause the motor to overheat, decrease the setting value.
■
n3-23: Overexcitation Braking Operation
No.
(Hex.)
Name
Description
Default
(Range)
n3-23
(057B)
Overexcitation Braking
Operation
Sets the direction of motor rotation where the drive will enable overexcitation.
0
(0 - 2)
0 : Disabled
1 : Enabled Only when Rotating FWD
2 : Enabled Only when Rotating REV
Note:
When
n3-23 = 1, 2
, the drive enables overexcitation only in the direction of motor rotation in which a regenerative load is applied. Increased
motor loss can decrease
ov [Overvoltage]
faults.
◆
n7: EZ Drive
The
n7 parameters
provide special adjustments for EZ Vector Control.
■
n7-01: Damping Gain for Low Frequency
No.
(Hex.)
Name
Description
Default
(Range)
n7-01
(3111)
Expert
Damping Gain for Low
Frequency
Sets the oscillation suppression gain for the low speed range.
1.0
(0.1 - 10.0)
Note:
•
If oscillation occurs in the low speed range, increase the acceleration time or increase the setting value in 0.5-unit increments.
•
To get starting torque with the setting for
C4-01 [Torque Compensation Gain]
, decrease the setting value in 0.3-unit increments.
■
n7-05: Response Gain for Load Changes
No.
(Hex.)
Name
Description
Default
(Range)
n7-05
(3115)
Expert
Response Gain for Load
Changes
Sets the response gain related to changes in the load.
50
(10 - 1000)
Note:
To improve tracking related to load changes, increase the setting value in 5-unit increments. If oscillation occurs during load changes,
decrease the setting value in 5-unit increments.
■
n7-07: Speed Calculation Gain1
No.
(Hex.)
Name
Description
Default
(Range)
n7-07
(3117)
Expert
Speed Calculation Gain1
Sets the speed calculation gain during usual operation. Usually it is not necessary to change this
setting.
15.0 Hz
(1.0 - 50.0 Hz)
V/f
OLV/PM
OLV/PM
EZOLV
V/f
OLV/PM
OLV/PM
EZOLV
V/f
OLV/PM
OLV/PM
EZOLV
V/f
OLV/PM
OLV/PM
EZOLV
V/f
OLV/PM
OLV/PM
EZOLV
