YASKAWA CIMR-VU BA0001 Technical Manual page 392

B.2 Parameter Table
No. Name
Hunting Prevention Gain
n1-02
Setting
Hunting Prevention Time
n1-03
Constant
Hunting Prevention Gain
n1-05
while in Reverse
Speed Feedback Detection
n2-01
Control (AFR) Gain
Speed Feedback Detection
n2-02 Control (AFR) Time Constant Sets the AFR time constant 1.
Speed Feedback Detection
n2-03 Control (AFR) Time Constant
2
High-Slip Braking
n3-01 Deceleration Frequency
Width
High-Slip Braking Current
n3-02
Limit
High-Slip Braking Dwell
n3-03
Time at Stop
High-Slip Braking Overload
n3-04
Time
Overexcitation Deceleration
n3-13
Gain
High-Slip Suppression
n3-21
Current Level
Overexcitation Operation
n3-23
Selection
Line-to-Line Motor
n6-01
Resistance Online Tuning
392
Sets the gain for the Hunting Prevention Function.
If the motor vibrates while lightly loaded and n1-01 = 1,
increase the gain by 0.1 until vibration ceases.
If the motor stalls while n1-01 = 1, decrease the gain by 0.1
until the stalling ceases.
Sets the time constant used for hunting prevention.
Sets the gain used for Hunting Prevention.
When set to 0, the gain n1-02 is used for operation in reverse
direction.
n2: Speed Feedback Detection Control Function
Use n2 parameters to configure the Speed Feedback Detection Control function operation.
Sets the internal speed feedback detection control gain in the
automatic frequency regulator (AFR).
This parameter does not typically require adjustment. Adjust
this parameter as follows:
If hunting occurs, increase the set value.
If response is low, decrease the set value.
Sets the AFR time constant 2. Increase the setting if
overvoltage occurs during sudden load changes or the speed
overshoots during fast acceleration.
Use n3 parameters to configure the high-slip braking function.
Sets the output frequency reduction step width when the drive
stops the motor using high-slip braking (HSB).
If Overvoltage (ov) faults occur during HSB, this parameter
may need to be increased.
Sets the current limit during HSB. Higher n3-02 settings will
shorten motor stopping times but increase the motor current,
and therefore motor heating.
Sets the time the drive will run with minimum frequency
(E1-09) at the end of deceleration.
If this time is set too low, the machine inertia can cause the
motor to rotate slightly after HSB completion.
Sets the time required for an HSB overload fault (oL7) to occur
when the drive output frequency does not change during an
HSB stop. This parameter does not typically require
adjustment.
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.
If overcurrent or overload occur during high-slip deceleration,
reduce the high-slip suppression current level. Set as a
percentage of the drive rated current.
0: Enabled in both directions
1: Enabled only when rotating forward
2: Enabled only when in reverse
n6: Online Tuning of Motor Line-to-Line Resistance
Use n6 parameters to adjust the motor line-to-line resistance while the drive is online.
Tunes the line-to-line motor resistance continuously during
operation.
0: Disabled
1: Enabled
n8: Permanent Magnet (PM) Motor Control
Use n8 parameters to control the PM motor control.
Description
n3: High-Slip Braking
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
Control
Mode
Range Def.
O
V/ P
L
f M
V
0.00 to
1.00 A − −
2.50
<1>
0 to 500 A − −
0.00 to
0.00 A − −
2.50
0.00 to
<8>
− A −
10.00
Adjust the setting by 0.05 units at a time, while
checking the response.
0 to 2000 50 ms − A −
750
0 to 2000 − A −
ms
1 to 20 5% A − −
100 to 200 150% A − −
0.0 to 10.0 1.0 s A − −
30 to 1200 40 s A − −
1.00 to
1.10 A A −
1.40
0 to 150 100% A A −
0 to 2 0 A A −
0, 1 1 − A −
Addr.
Pg.
Hex
581 240
582 240
530 240
584 240
585 241
586 241
588 241
589 242
58A 242
58B 242
531 242
579 242
57B 242
570 243