N: Special Adjustment - YASKAWA FSDrive-MV1000 Parameter Manual

No.
Name
(Addr.)
Output Voltage
L8-67
Imbalance
(3116H)
Detection Time
Transformer
L8-86 Overheat Alarm
(3100H) (TMA) Operation
Selection
Transformer
L8-87
Overheat Alarm
(3101H)
(TMA) Level
Transformer
L8-88
Overheat Fault
(3102H)
(TME) Level
<3> Parameter setting value is not reset to the default value when the drive is initialized (A1-03 = 1110/2220).
<6> Default setting value varies by the drive model (o2-04).
<8> The setting range changes if the value of the motor rated capacity (E2-11) is changed by Auto-Tuning or manual setting.
<10> Default setting is determined by the control mode (A1-02).
<12> The setting range for the acceleration and deceleration times is determined by the accel/decel time setting units in C1-10. For example, if
the accel/decel time setting units are set to 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.
<16> Default setting is determined by the control mode (A1-02) and the drive model (o2-04).
<20> The range upper limit is determined according to the maximum output frequency (E1-04) and the upper limit of the frequency reference
(d2-01).

◆ n: Special Adjustment

The n parameters are used to adjust more advanced performance characteristics such as Hunting Prevention and Speed
Feedback Detection Control.
No.
Name
(Addr.)
n1-01 Hunting Prevention
(580H) Selection
n1-02 Hunting Prevention
(581H) Gain Setting
n1-03 Hunting Prevention
(582H) Time Constant
Hunting Prevention
n1-05
Gain while in
(530H)
Reverse
Speed Feedback
n2-01
Detection Control
(584H)
(AFR) Gain
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
All Modes
Sets the time before output voltage imbalance is detected in 0.001 s units.
If the state in which the zero-phase voltage detection value exceeds the
level set to L8-66 continues for the time set to L8-67 or longer, VUB
(output voltage imbalance) is detected.
All Modes
Sets the operation when a TMA (Transformer Overheat Alarm) is
detected.
0: Ramp to stop over the time set for C1-02 (Deceleration Time)
1: Coast to stop
2: Fast Stop over the time set for C1-09 (Fast Stop Time)
3: Continue operation. TMA alarm is triggered.
All Modes
Sets the detection temperature for TMA alarm function in °C units.
Note: An alarm is detected when the detected transformer temperature
reaches the value set here.
All Modes
Sets the detection temperature for TME fault function in °C units.
n1: Hunting Prevention
V/f OLV
0: Disabled
1: Enabled
V/f OLV
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.
V/f OLV
Sets the time constant used for Hunting Prevention.
ベクトル
V/f
Sets the gain used for Hunting Prevention. If set to 0, the gain set to n1-02
is used for operation in reverse.
n2: Speed Feedback Detection Control
V/f
OLV
Sets the internal speed feedback detection control gain in the automatic
frequency regulator (AFR).
If hunting occurs, increase the set value. If response is low, decrease the
set value.
Description
Description
CLV
CLV
CLV
PG ベクトル
CLV
1.3 Parameter Table
Setting
common_
Default: 0.200 s
Min: 0.001 s
Max: 2.000 s
common_
Default: 3
Min: 0
Max: 3
common_
Default:
<6>
Min: 50°C
Max: 160°C
Default:
<6>
common_
Min: 50°C
Max: 160°C
Setting
Default: 1
common
Min: 0
Max: 1
Default: 1.00
common
Min: 0.00
Max: 2.50
Default:
<6>
Min: 0 ms
common
Max: 500 ms
Default: 0.00
common
Min: 0.00
Max: 2.50
common
Default: 2.00
Min: 0.00
Max: 10.00
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