E6582233
E-21
5
5) Energy-saving
Setting of V/F control mode selection
to
(Energy-saving)
Energy can be saved in all speed areas by detecting load current and flowing the optimum current that fits
the load.
★
Motor constant must be set
If the motor you are using is a 4P Toshiba standard motor and if it has the same capacity as the inverter,
there is no need to set the motor constant.
In any other case, set the following parameters according to the
motor’s name plate.
(Base frequency 1),
(Base frequency voltage 1),
(Motor rated capacity),
(Motor
rated current),
(Motor rated speed)
There are three procedures for setting the other motor constants.
1) Automatic energy-saving operation and a motor constant can be set at once.
Set the basic parameter
to
.
⇒
Refer to section 5.4.3) for details.
2) The motor constant can be automatically set (auto-tuning).
Set the extended parameter
to
.
⇒
Refer to section 6.16 selection 2 for details.
3) Each motor constant can be set individually.
⇒
Refer to section 6.16 selection 3 for details.
6) Setting of V/f characteristic arbitrarily
Setting of V/f control mode selection
pt
to
7
(V/f 5-point setting)
In this mode, the base frequency and the base frequency voltage for the V/f control need to be set to operate
the motor while switching a maximum of 5 different V/f characteristics.
[Parameter setting]
Title
Function
Adjustment range
Default setting
V/f 5-point setting VF1 frequency
~
Hz
V/f 5-point setting VF1 voltage
~
% *
V/f 5-point setting VF2 frequency
~
Hz
V/f 5-point setting VF2 voltage
~
% *
V/f 5-point setting VF3 frequency
~
Hz
V/f 5-point setting VF3 voltage
~
% *
V/f 5-point setting VF4 frequency
~
Hz
V/f 5-point setting VF4 voltage
~
% *
V/f 5-point setting VF5 frequency
~
Hz
V/f 5-point setting VF5 voltage
~
% *
* 100% adjustment value (400V class: 400V)
