User Constant Tables
5-
59
* 1. The factory setting depends upon the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given.
* 2. These are values for a 200 V class Inverter. Value for a 400 V class Inverter is double.
* 3. If the setting is 0, the axis will accelerate to the specified speed over the specified acceleration time (C1-01 to C1-08).
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 maxi-
mum voltage.
0.0 to
5.0
0.3 s
*1
No
A
A
A
A
A
488H
6-55
6-56
PwrL V/F
Ramp t
L2-05
Undervolt-
age detec-
tion 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
detection level.
150 to
210
*2
190 V
*2
No
A
A
A
A
A
489H
6-56
PUV Det
Level
L2-06
KEB decel-
eration time
Sets in seconds the time
required to decelerate from the
speed where the deceleration at
momentary power loss com-
mand (KEB) is input to zero
speed.
0.0 to
200.0
0.0 s
No
A
A
A
A
A
48AH
-
KEB Fre-
quency
L2-07
Momentary
recovery
time
Set in seconds the time to
accelerate to the set speed after
recovery from a momentary
power loss.
0.0 to
25.5
0.0 s
*3
No
A
A
A
A
A
48BH
-
UV
RETURN
TIME
L2-08
Frequency
reduction
gain at KEB
start
Sets as a percent the about to
reduce the output frequency at
the beginning of deceleration at
momentary power loss (KEB).
Reduction = slip frequency
before KEB operation
×
L2-08
×
2
0 to
300
100%
No
A
A
A
A
A
48CH
-
KEB Decel
Time
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
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