1.3  Parameter Table
64  YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
L2: Momentary Power Loss Ride-Thru/Main Power Supply
L2-01
(485H)
Momentary Power 
Loss Ride-Thru 
Operation Selection
0: Disabled. Drive trips on Uv1 fault when power is lost.
1: Recover within the time set in L2-02. Uv1 will be detected if power loss is 
longer than L2-02.
2: Recover as long as CPU has power. Uv1 is not detected.
Default: 0
Min: 0
Max: 2
203
L2-02
(486H)
Momentary Power 
Loss Ride-Thru 
Time
Sets the Power Loss Ride-Thru time. Enabled only when L2-01 = 1.
Default:
<6>
Min: 0.0 s
Max: 25.5 s
204
L2-03
(487H)
Momentary Power 
Loss Ride-Thru 
Minimum 
Baseblock Time
Sets the minimum wait time for residual motor voltage decay before the 
drive output reenergizes after performing Power Loss Ride-Thru.
Increasing the time set to L2-03 may help if overcurrent or overvoltage occur 
during Speed Search or during DC Injection Braking. 
Default:
<6>
Min: 0.1 s
Max: 20.0 s
204
L2-04
(488H)
Momentary Power 
Loss Ride-Thru 
Voltage Recovery 
Time
Sets the time for the output voltage to return to the preset V/f pattern after 
Speed Search.
Default:
<6>
Min: 0.0 s
Max: 10.0 s
204
L2-05
(489H)
Undervoltage 
Detection Level 
(Uv)
Sets the DC bus undervoltage trip level. 
Default:
<6>
Min: 0 V
Max: 1700 V
205
L2-40
(3126H)
Power Supply 
Overvoltage 
Operation Selection
Sets the operation when detecting an overvoltage at the power supply side.
0: Ramp to stop (uses the deceleration time set for C1-02)
1: Coast to stop
2: Fast Stop (uses the Fast Stop time set for C1-09)
3: Alarm only
Default: 3
Min: 0
Max: 3
205
L2-41
(3127H)
Power Supply 
Overvoltage 
Detection Level
Sets the level at which overvoltage at the power supply side is detected as a 
percentage of o2-11, in 0.1% units.
Default: 120.0%
Min: 0.0%
Max: 200.0%
205
L2-42
(3128H)
Power Supply 
Overvoltage 
Detection Time
Sets the time before IOV (overvoltage at the power supply side) is detected, 
in 0.01 s units.
If the state in which the output voltage exceeds the value set for L2-41 
continues for the time set for L2-42 or longer, IOV is detected.
Default: 0.05 s
Min: 0.00 s
Max: 2.00 s
205
L2-43
(3129H)
Inrush Current 
Suppression Circuit 
Selection
Selects if the inrush current suppression circuit (option) is used. Make sure 
to set the value to 1 when using the inrush current suppression circuit. 
0: Not used 
1: Used  
Note: 1. Make sure to set the value to 1 when using the inrush current 
suppression circuit. 
2. This parameter is available from the software versions S0109 and 
later.
Default: 0 
Min: 0 
Max: 1
205
L2-45
(312BH)
On-Delay Time of 
Inrush Current 
Suppression Circuit 
Breaker
Sets a delay time to output the close command for the inrush current 
suppression circuit breaker after the breaker is closed. There is normally no 
need to change this parameter from the default value.
Default: 100 ms 
Min: 0 ms 
Max: 2000 ms
205
L3: Stall Prevention
L3-01
(48FH)
Stall Prevention 
Selection during 
Acceleration
0: Disabled. Drive runs at a set frequency. A heavy load may cause speed 
loss.
1: General purpose. Acceleration is paused as long as the current is above the 
L3-02 setting. 
2: Intelligent. Accelerate in the shortest possible time without exceeding the 
L3-02 level.
Default: 1
Min: 0
Max: 2
206
No.
(Addr.)
Name Description Setting Page
MV1000ParameterGuide_E_conditional.book  64 ページ  2013年10月11日 金曜日 午後8時18分