|
No.
(Hex.)
|
Name
|
Description
|
Default
(Range)
|
|
L2-02
(0486)
|
Power Loss Ride Through Time
|
    
Sets the length of time that the drive will wait before it tries to restart if the DC bus voltage is less than L2-05 [Undervoltage Detection Lvl (Uv1)] after a momentary power loss.
|
Determined by o2-04, C6-01
(0.0 - 25.5 s)
|
This function is applicable when L2-01 = 1, 3 [Power Loss Ride Through Select = Enabled, Kinetic Energy Backup: L2-02].
After a power loss, if these conditions are satisfied, the drive detects Uv1 [DC Bus Undervoltage], shuts off the output, and the motor coasts to stop:
-
After the DC bus voltage decreases less than the level of L2-05 [Undervoltage Detection Lvl (Uv1)], the time set in L2-02 is expired.
-
The drive does not detect a Uv2 [Control Power Undervoltage].
Depending on use conditions, if the time set in L2-02 is long, the drive may detect Uv2 before Uv1. If this is a problem, decrease the time set in L2-02 to prevent Uv2.
Note:
-
The length of time that the drive can recover after a power loss changes when drive capacity changes.
-
The upper limit of the possible momentary power loss Ride-Thru time changes when drive capacity changes.