18
V/f Characteristics:
The figure below shows the output voltage for Inverter output fre-
quency. When its characteristic (max. voltage/frequency) differs
from that of the optimum motor, refer to
2-8-3 V/f Characteristic
Setting.
200
0
12
60
1.5
Output voltage
(V)
Output freq. (Hz)
Since the Inverter is provided with electronic thermal overload pro-
tective function in order to protect the motor from overheating, set
the rated current value described on the motor name plate to con-
stant (no. 19). Standard 4-pole motor current value is set as the ini-
tial value. For details refer to
2-8-8 Electronic Thermal Overload
Function.
Note
Provide a thermal relay or thermal protector when more than one
motor is operated simultaneously.
1-5-3 Test Run Method
The Inverter can be operated using the Digital Operator or control
circuit terminal inputs. Models with Digital Operator are set to
“OPERATOR MODE BY DIGITAL OPERATOR” prior to shipping.
Operation Using the Digital Operator
This is the standard setting of Models with a Digital Operator; in
this Mode, the Inverter is operated with the keys of the Digital
Operator.
Since this Operation Mode is set at the factory prior to shipping,
operation can be performed only by main circuit wiring.
Power
supply
3G3XV
Inverter
IN
Motor
Operation Procedure
Follow the procedure below to operate the Inverter using the Digi-
tal Operator. Refer to
2-3 Digital Operator Operation Example for
details on Digital Operator operation.
1, 2, 3...
1. Turn the power on.
2. Press the DSPL Key on the Digital Operator to select the fre-
quency reference value display (F0000).
Motor Rated Current
Setting
Operation
Section 1-5