No. Name Description Range Def.
Control
Mode
Addr.
Hex
Pg.
V/f
OL
V
PM
L8-41 Current Alarm Selection
Configures an alarm when the output current exceeds 150% of the drive rated
current.
0: Alarm disabled.
1: Alarm enabled (alarm is output).
0, 1 0 A A A 4F2 —
<1> Default setting value is dependent on parameter A1-02, Control Method Selection. The value shown is for A1-02 = 2-OLV control.
<2> Default setting value is dependent on parameter A1-02, Control Method Selection. The value shown is for A1-02 = 0-V/f Control.
<7> Default setting value is 120% when C6-01 is set to 1 (ND) and 150% when C6-01 is set to 0 (HD).
<9> Default setting value is dependent on parameter E1-01, Input Voltage Setting.
<12> Default setting value is dependent on parameter o2-04, Drive/kVA Selection.
<14> Default setting value is dependent on parameter o2-09, Initialization Spec. Selection.
<15> Default setting value is dependent on parameter A1-02, Control Method Selection. The value shown is for A1-02 = 5-PM OLV Control.
<24> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<25> Parameter setting value is not reset to the default value during drive initialization, A1-03 = 1110, 2220, 3330.
<29> Setting value 2 is not available A1-02 = 5-PM OLV Control. When enabled, the drive stops accelerating when it exceeds the value of L3-02, Stall Prevention Level. The drive decelerates after
100 ms and begins accelerating again after restoring the current level.
<31> Use caution when working with regenerative loads as motor speed can exceed the frequency reference during overvoltage suppression function operation. Set to "Disable" when motor speed
needs to accurately match the frequency reference, and also when using a braking resistor. An OV fault may still occur even when this function is enabled if there is a sudden increase in the
regenerative load.
<50> The setting range depends on the control mode set in A1-02. For PM OLV Control the setting range is 0 to 2.
<51> Parameter value is changed if E2-11 is manually changed or changed by Auto-Tuning.
<56> The default value is 0 for all 200 V Single-Phase drives.
<57> Default setting value is dependent on parameter o2-04, Drive/kVA Selection and C6-01, Drive Duty Selection.
u
n: Advanced Performance Set-Up
The n parameters are used to adjust more advanced performance characteristics such as hunting prevention, speed feedback detection, high-slip braking
and R1 tuning.
No. Name Description Range Def.
Control
Mode
Addr.
Hex
Pg.
V/f
OL
V
PM
n1: Hunting Prevention
Use n1 parameters to configure hunting prevention operation.
n1-01 Hunting Prevention Selection
If the motor vibrates while lightly loaded, Hunting Prevention may reduce the
vibration.
0: Disabled
1: Enabled
When quick response is needed disable Hunting Prevention.
0, 1 1 A − − 580 —
n1-02 Hunting Prevention Gain Setting
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.
0.00 to 2.50 1.00 A − − 581 —
n1-03 Hunting Prevention Time Constant Sets the time constant used for hunting prevention. 0 to 500 <12> A − − 582 —
n1-05
Hunting Prevention Gain while in
Reverse
Sets the gain used for Hunting Prevention.
When set to 0, the gain n1-02 is used for operation in reverse direction.
0.00 to 2.50 0.00 A − − 530 —
n2: Speed Feedback Detection Control Function
Use n2 parameters to configure the Speed Feedback Detection Control function operation.
n2-01
Speed Feedback Detection Control
(AFR) Gain
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.
0.00 to 10.00 1.00 − A − 584 —
Adjust the setting by 0.05 units at a time, while checking the
response.
n2-02
Speed Feedback Detection Control
(AFR) Time Constant
Sets the AFR time constant 1. 0 to 2000 50 ms − A − 585 —
n2-03
Speed Feedback Detection Control
(AFR) Time Constant 2
Sets the AFR time constant 2. Increase the setting if overvoltage occurs during
sudden load changes or the speed overshoots during fast acceleration.
0 to 2000 750 ms − A − 586 —
n3: High-Slip Braking
Use n3 parameters to configure the high-slip braking function.
n3-01
High-Slip Braking Deceleration
Frequency Width
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.
1 to 20 5% A − − 588 —
n3-02 High-Slip Braking Current Limit
Sets the current limit during HSB. Higher n3-02 settings will shorten motor
stopping times but increase the motor current, and therefore motor heating.
100 to 200 150% A − − 589 —
n3-03
High-Slip Braking Dwell Time at
Stop
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.
0.0 to 10.0 1.0 s A − − 58A —
n3-04 High-Slip Braking Overload Time
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.
30 to 1200 40 s A − − 58B —
n3-13 Overexcitation Deceleration 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 improve the braking power of overexcitation, increase the gain by 1.25 to
1.30.
1.00 to 1.40 1.10 A A − 531 —
n3-21 High-Slip Suppression Current Level
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 to 150 100% A A − 579 —
B.2 Parameter Table
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
315
B
Parameter List
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