Yaskawa VS-626 MC5 - Manual (Page 187)

7.3 Common Functions
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J Momentary Power Loss Settings: L2-01 to L2-05
Momentary Power Loss Detection: L2-01
User
Change
during Setting Factory
Valid Access Levels User
Constant
Number
Name
during
Opera-
tion
Setting
Range Unit
Factory
Setting Open Loop
Vector
Flux Vector
L2-01
Momentary power loss
detection
0 to 2 -- 0 B B
D Settings
Setting Function
0 Disabled. (An undervoltage fault is detected when there is a momentary power loss.)
1
Enabled. (Restarts if power is restored within the L2-02 time. An under-voltage fault is detected
for a longer power loss.)
2
Enabled during CPU operation. (Restarts if power is restored while the CPU is operating. An
undervoltage fault is not detected.)
D This constant specifies the processing that is performed when a momentary power loss occurs.
D When power loss ridethru is enabled (setting 1 or 2), operation will be restarted after a speed search
if the power is restored within the allowed time interval.
D When power loss ridethru is disabled (setting 0), an undervoltage fault will be detected if power is in-
terrupted for more than 15 ms.
Momentary Power Loss Ridethru Time: L2-02
User
Change
during Setting Factory
Valid Access Levels User
Constant
Number
Name
during
Opera-
tion
Setting
Range Unit
Factory
Setting Open Loop
Vector Flux Vector
L2-02
Momentary power loss
ridethru time
0.0 to 2.0 s 0.7 B B
D The factory setting depends on the Inverter capacity. The factory setting shown in the table is for a 200
V class, 0.4 kW Inverter. (See page NO TAG.)
D This setting is valid only when constant L2-01 is set to 1. Set the power loss ridethru time in seconds.
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