N700 Operating Instructions and Parts Manual
3. Operation
21
!
CAUTION
z
The cooling fins will have high temperature. Be sure not to touch them.
Otherwise, there is a danger of getting burned.
z
Low to high speed operation of the inverter can be easily set. Be sure to operate it
after checking the tolerance of the motor and machine.
Otherwise, there is a danger of injury.
z
Install an external breaking system if needed.
Otherwise, there is a danger of injury.
z
If a motor is operated at a frequency higher than standard setting value(50Hz /
60Hz), be sure to check the speeds of the motor and the machine from their
manufacturers. After getting their consent, operate them.
Otherwise, there is a danger of machine breakage.
3.1
Operating
This inverter requires two different signals in order for the inverter to operate correctly. The
inverter requires both an operation setting and a frequency setting signal.
The following indicates the details of each method of operation and necessary instructions for
operation.
3.1.1
Operation setting and a frequency setting by the terminal control.
(1) This is the method which controls the inverter by connecting the control circuit terminals with
signals from the outside(the frequency setting, the starting switch etc.).
(2) The operation is started when the operation setting (FW, REV ) is turned ON while the input
power is turned ON.
(Note) The methods of setting the frequency with the terminal are the voltage setting and the
current setting. Both are selective. The control circuit terminal list shows necessary things for
each setting.
①
The operation setting : switch, relay, etc.
②
The frequency setting: signals from volume or external (DC 0
10V, DC
∼
0
∼
±10V,
4
20mA etc.)
∼
3.1.2
Operation setting and frequency setting with the digital operator.
(1) This is the method of operation from the digital operator, which is supplied with the inverter as
standard, or the optional remote operator keypad (OPE. KEYPAD) and volume (OPE. VOL).
(2) When the inverter is being controlled by digital operator, the terminals (FW, REV) are not
available. Frequency can be also controlled by digital operator.
3.1.3
Operation setting and frequency setting from both the digital operator and the
terminal operator
(1) This is the method of inverter operating from both of the above two operating methods.
(2) The operation setting and the frequency setting can be done through the digital operator and
the terminal operator.
