Continuing Operation
6-
67
* 1. The factory settings depend on the Inverter capacity. The values for a 200 V Class Inverter of 0.4 kW are given.
* 2. These are values for a 200 V Class Inverter. Values for a 400 V Class Inverter are double.
Setting Precautions
•
Error output signals are not output during momentary power loss recovery.
•
To continue Inverter operation after power has been restored, make settings so that Run Commands from
the control main circuit terminal are stored even while power is suspended.
•
If the momentary power loss operation selection is set to 0 (Disabled), when the momentary power loss
exceeds 15 ms during operation, alarm UV1 (main circuit undervoltage) will be detected.
Speed Search
The speed search function finds the actual speed of the motor that is rotating using inertia, and then starts
smoothly from that speed. When restoring power after a temporary power loss, the speed search function
switches connection from the commercial power supply, and then restarts the fan that is rotating using inertia.
L2-04
Voltage
recovery time
Sets the time required to return
the Inverter output voltage to
normal voltage at the comple-
tion of a speed search, in units of
one second.
Sets the time required to recover
from 0 V to the maximum volt-
age.
0.0 to
5.0
0.3 s
*1
No
A
A
A
A
488H
L2-05
Undervolt-
age detection
level
Sets the main circuit undervolt-
age (UV) detection level (main
circuit DC voltage) in V units.
Usually setting is not necessary.
Insert an AC reactor in the
Inverter input side to lower the
main circuit undervoltage detec-
tion level.
150 to
210
*2
190 V
*2
No
A
A
A
A
489H
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor