N7: Ez Drive - YASKAWA HV600 Manual

2.10 n: Special Adjustment
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n3-21: HSB Current Suppression Level
No.
Name
(Hex.)
n3-21 HSB Current Suppression
Level
(0579)
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.
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n3-23: Overexcitation Braking Operation
No.
Name
(Hex.)
n3-23 Overexcitation Braking
Operation
(057B)
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.
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n7: EZ Drive

The n7 parameters provide special adjustments for EZ Vector Control.
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n7-01: Damping Gain for Low Frequency
No.
Name
(Hex.)
n7-01 Damping Gain for Low
Frequency
(3111)
Expert
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.
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n7-05: Response Gain for Load Changes
No.
Name
(Hex.)
n7-05 Response Gain for Load
Changes
(3115)
Expert
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.
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n7-07: Speed Calculation Gain1
No.
Name
(Hex.)
n7-07 Speed Calculation Gain1
(3117)
Expert
394
V/f OLV/PM OLV/PM EZOLV
Sets the upper limit of the current that is suppressed at the time of overexcitation deceleration as a
percentage of the drive rated current.
V/f OLV/PM EZOLV OLV/PM
Sets the direction of motor rotation where the drive will enable overexcitation.
V/f OLV/PM OLV/PM EZOLV
Sets the oscillation suppression gain for the low speed range.
V/f OLV/PM EZOLV OLV/PM
Sets the response gain related to changes in the load.
V/f OLV/PM EZOLV OLV/PM
Sets the speed calculation gain during usual operation. Usually it is not necessary to change this
setting.
Description
Description
Description
Description
Description
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Default
(Range)
100%
(0 - 150%)
Default
(Range)
0
(0 - 2)
Default
(Range)
1.0
(0.1 - 10.0)
Default
(Range)
50
(10 - 1000)
Default
(Range)
15.0 Hz
(1.0 - 50.0 Hz)