5
-62
* 1. The setting range for flux vector and open-loop vector 2 control is 0 to 2.
* 2. These values are for a 200 V Class Inverter. For a 400 V Class Inverter, double the values.
Reference Detection: L4
User constants for the reference detection function are shown in the following table.
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
L3-05
Stall pre-
vention
selection
during run-
ning
0: Disabled (Runs as set. With
a heavy load, the motor may
stall.)
1: Deceleration time 1 (the
deceleration time for the
stall prevention function is
C1-02.)
2: Deceleration time 2 (the
deceleration time for the
stall prevention function is
C1-04.)
0 to 2
1
No
A
A
No
No
No
493H
4-20
6-47
StallP Run
Sel
L3-06
Stall pre-
vention
level dur-
ing running
Effective when L3-05 is 1 or 2.
Set as a percentage of the
Inverter rated current.
Usually setting is not necessary.
The factory setting reduces the
set values when the motor
stalls.
30 to
200
160%
No
A
A
No
No
No
494H
4-20
6-47
StallP Run
Level
L3-11
Overvoltag
e inhibit
selection
0: Disabled
1: Enabled
Used to enable or disable the
function for inhibiting main cir-
cuit overvoltages by reducing
the regenerative torque limit
according to the main circuit
overvoltage level.
If this function is enabled,
when the main circuit voltage
rises, operation will be per-
formed with the regenerative
torque less than the set value.
0 or 1
0
No
No
No
A
A
A
4C7H
4-20
6-25
7-3
OV Inhibit
Sel
L3-12
Overvoltag
e inhibit
voltage
level
Sets the main circuit voltage
level for which the regenerative
torque limit is restricted to 0.
Usually, there is no need to
change this setting. If main cir-
cuit overvoltages occur even
with the overvoltage inhibit
function enabled, reduce this
setting.
350 to
390
*2
380V
*2
No
No
No
A
A
A
4C8H
4-20
6-25
OV Inhbt
VoltLv1
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
L4-01
Speed agree
detection
level
Effective when “Desired fre-
quency (ref/setting) agree 1,”
“Frequency detection 1,” or
“Frequency detection 2" is set
for a multi-function output.
Frequencies to be detected are
set in Hz units.
0.0 to
400.0
0.0 Hz
No
A
A
A
A
A
499H
6-48
Spd Agree
Level