Acceleration and Deceleration Characteristics
6-
27
Related Constants
* These values are for a 200 V Class Inverter. For a 400 V Class Inverter, double the values.
Setting Precautions
When this function is enabled, if the main circuit voltage rises, the regenerative torque limit will decrease to a
value less than its set value and so the motor will not rotate at the speed specified by the speed reference.
Therefore, in applications where it is necessary to rotate the motor at the speed specified by the speed refer-
ence, disable this function and use a converter, a dynamic braking resistor, or a power regenerative unit to sup-
press rises in the main circuit voltage.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
L3-11
Overvoltage
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 accord-
ing to the main circuit overvoltage
level.
If this function is enabled, when
the main circuit voltage rises,
operation will be performed with
the regenerative torque less than
the set value.
0 or 1
0
No
No
No
A
A
A
4C7H
OV 抑制功能
选择
L3-12
Overvoltage
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 circuit
overvoltages occur even with the
overvoltage inhibit function
enabled, reduce this setting.
350 to
390
*
380
V*
No
No
No
A
A
A
4C8H
OV 抑制电压值