Precautions Before Power-On; Display Status After Power-On; Motor Control Methods Selection - Veichi JT550 Series Manual

Chapter 5 Basic Operation and Test Run

5.2 Precautions Before Power-On

Please execute the following steps before power-on.
Items
Check the power voltage
Check the connection between the
output terminals of inverter and the
motor terminals
Check the connection on inverter's
control circuit terminals.
Check the status of inverter's control
circuit terminals.
Load Check

5.3 Display Status After Power-On

After power-on, the display on the operation panel in normal status is shown as below:
Status
Normal
Faulty

5.4 Motor Control Methods Selection

5.4.1 Selection References of Motor Control Methods
Parameters Description
0: Sensorless Vector
Control (SVC)
Motor
Control
1: Flux Vector
Mode
Control (FVC)
(F0.01)
2:Voltage/Frequency
(V/F) control (Open
-Loop Control)
Make sure the power voltage is correct
Properly connect the input terminals (R/S/T) of power supply
Correctly ground inverter and motor
Make sure the output terminals(U/V/W) is firmly connected to
the motor terminals
Please confirm if the control circuit terminals are firmly
connected to other control devices.
Make sure all of the terminals are OFF (Inverter is in an inactive
mode)
Make sure the motor is in no-load status and unconnected to
mechanical system
Display
It indicates open-loop vector control, and is applicable to
high-performance control applications such as machine tool,
centrifuge, wire drawing machine and injection moulding machine.
One inverter can operate only one motor.
It refers to closed-loop vector control. It is applicable to
high-accuracy speed control or torque control applications such as
high-speed paper making machine, crane and elevator. One inverter
can operate only one motor. An encoder must be installed at the
motor side, and a PG card matching the encoder must be installed
at the inverter side.
It is applicable to applications with low load requirements or
applications where one inverter operates multiple motors, such as a
fan and a pump.
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JT550 Series inverter Manual
Contents
Description
Default Display of Digital Setting of
50Hz
Inverter stops working when an error
occur and displays the error type
Application