Yaskawa VS-616PS5 Series Programming Manual User Manual
Page 82
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VS-616PS5 Programming Manual
Section L: Protection Parameters
L4 Power Loss Ride-through
L
Protection Parameters
L2
Power Loss Ride-through
When momentary power loss occurs, Power Loss Ride-through function is disabled.
Selects whether the inverter stops when power loss is detected or “rides through” a
momentary power loss. When ride-through operation is selected, speed search
starts from the current output Speed.
Momentary power loss ride-through is disabled (factory default). When momentary
power loss is detected, a fault contact trips, stopping the inverter.
Setting Range:
0.0 to 2.0s
Factory Default:
Inverter model dependent
Sets the ride-through time allowed before the inverter trips, after momentary power
loss. This setting is activated when L2-01 is set to “1.” If power is restored within this
time, operation restarts automatically. If power is not restored within this time, a fault
contact trips, stopping the inverter.
Maximum Acceptable values are indicated in the following tables.
200V Models
400V Models
Setting Range:
150 to 210V (230V class), 300 to 420V (460V class)
Factory Default:
190V (230V class), 380V (460V class)
Sets the inverter’s main circuit DC bus undervoltage level.
When setting this value less than the factory default, it is necessary to install an AC
reactor on the input side. The AC reactor reduces peak current input to the inverter
and smooths out the DC bus current ripple when operating at low voltages.
L2-01 Momentary Power Loss Ride-through
B
L2-02 Momentary Power Loss Ride-through Time
B
Capacity Kw
0.4
0.7
1.5
2.2
3.7~15
L2-02
0.7
1.0
1.0
1.0
2.0
Capacity Kw
0.4-2.2
3.7-300
L2-02
1.0
2.0
L2-05 Undervoltage Detection Level
A