6. Control Functions and Parameter Settings
6-73
6-6-2 Selection of load characteristics
Select the load characteristics by setting the following parameters.
Table
No.
Name
Default
value
Min.
value
Max.
value
Unit
Function
C30 - Control mode selection
0
Control mode selection
1.
1.
4.
—
= 1 : V/f control (constant
torque: overload
characteristics 150%
for one minute.)
= 2 : V/f control (variable
torque: overload
characteristics 120%
for one minute.)
(1) The default setting is for constant torque load characteristics, so change the setting according to the
application. When this parameter is set, some others like limits or current ratings shift to specific
default values given for CT or VT control mode, so this parameter must be set prior than any other
parameter.
(2) This parameter is not affected by C09-7: default value load.
(3) The parameters with setting values and setting ranges that shift when this parameter is selected are
shown below.
Table
No.
Name
Default
value
Min.
value
Max.
value
Unit
Function
A02 - Torque boost
2
Manual torque boost
setting
(Note 1)
0.0
20.0
%
Setting of torque boost at 0Hz.
A03 - DC brake
2
DC braking voltage
(Note 1)
0.1
20.0
%
B00 - Output rating
Constant torque
Constant torque
rated current
× 0.3~1.0
6
Variable torque
(Note 2)
Inverter
rating
Variable torque
rated current
× 0.3~1.0
A
Overcurrent limit OLT, current
% display, meter output
reference value
B18 - Overcurrent limit
Constant torque
150.
50.
300.
0
Variable torque
105.
50.
120
%
(Note 1) The default value differs according to the inverter capacity and load characteristics selection.
(Note 2) For the inverter rating value, the constant torque rated current value and variable torque rated
current values given in Appendix 1 will apply.
