Yaskawa G5HHP Drive - Manual (Page 250)

Advanced Operation
7.5.6 Protective Functions: L
7 - 86
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 inter-
rupted for more than 15 ms.
Momentary Power Loss Ridethru Time: L2-02
User
Change
during Setting Factory
Valid Access Levels
User
Constant
Number
Name
g
during
Opera-
tion
Setting
Range
Unit Factory
Setting V/f
Control
V/f with
PG
Open
Loop
Vector
Flux
Vector
L2-02
Momentary power
loss ridethru time
x 0.0 to 2.0 s 1.0 B B B B
D
The factory setting depends on the Inverter capacity. The factory setting shown in the table is for a 400-V
class, 200 kW Inverter. (See page 8 - 42.)
D
This setting is valid only when constant L2-01 is set to 1. Set the power loss ridethru time in seconds.
7