Yaskawa iQpump Micro - Manual (Page 261)

B.9 n: Advanced Performance Set-Up
The n parameters adjust more advanced performance characteristics.
u n1: Hunting Prevention
No.
(Addr.
Hex)
Name LCD Display Description Values Page
n1-01
(0580)
Hunting Prevention
Selection
Hunt Prev Select
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 1
Range: 0, 1
–
n1-02
(0581)
Hunting Prevention
Gain Setting
Hunt Prev Gain
If the motor vibrates while lightly loaded, increase the gain by
0.1 until vibration ceases. If the motor stalls, decrease the gain
by 0.1 until the stalling ceases.
Default: 1.00
Min.: 0.00
Max.: 2.50
–
n1-03
(0582)
Hunting Prevention
Time Constant
Hunt Prev Time
Sets the time constant used for Hunting Prevention. Default: <1>
Min.: 0 ms
Max.: 500 ms
–
n1-05
(0530)
Hunting Prevention
Gain while in Reverse Hprev Gain @Rev
Sets the gain used for Hunting Prevention. If set to 0, the gain
set to n1-02 is used for operation in reverse.
Default: 0.00
Min.: 0.00
Max.: 2.50
–
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
u n3: Overexcitation Braking
No.
(Addr.
Hex)
Name LCD Display Description Values Page
n3-13
(0531)
Overexcitation
Deceleration Gain
Hflux Brake Gain
Applies a gain to the V/f pattern during deceleration (L3-04 =
4). Returns to normal values after ramp to stop or at re-
acceleration.
To increase the braking power of overexcitation, increase the
gain by 1.25 to 1.30.
Default: 1.10
Min.: 1.00
Max.: 1.40
–
n3-21
(0579)
High-Slip Suppression
Current Level
Hflux I Supp Lvl
Sets output current level at which the drive will start reducing
the overexcitation gain in order to prevent a too high motor slip
during Overexcitation Deceleration. Set as a percentage of the
drive rated current.
Default: 100%
Min.: 0
Max.: 150
–
n3-23
(057B)
Overexcitation
Operation Selection
Hflux Brake Sel
0: Enabled-Both Dir
1: Enabled-Fwd only
2: Enabled-Rev only
0: Enabled in both directions
1: Enabled only when rotating forward
2: Enabled only when in reverse
Default: 0
Range: 0 to 2
–
B.9 n: Advanced Performance Set-Up
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual 261
B
Parameter List