User Manual
EM303A General Purpose Inverter
43
5.2 Trial Operation Precautions
5.2.1 Turn off the Power
Checks before power-off:
z Voltage of power supply:3-phase 380V/415V, 50Hz
z Connect the input power supply cable to the input terminals R,S, and T of
inverter
z Connect the output terminals U, V, and W of inverter to the input terminals of
motor
z All control circuit terminals are connected to correct control device, and terminals
shall be off.
z Motor is idling.
z Turn the power off after all above setting have been confirmed.
are the output terminals of inverter’s DC bus voltage, is grounding
terminal, PB is wiring terminal of braking resistor. Any damage resulted from
incorrect wiring shall not in warranty.
5.2.2 Check at Power-on
After the inverter starts up, the present working status and parameters will be
displayed on the keypad. See Chapter 9 if anything unexpected displayed on
keypad.
5.2.3 Idling Operation
When motor is idling without mechanical load, the inverter is in keypad or terminal
control mode, try to run the motor. The idling trial operation procedures as shown in
followings:
z Setting Reference Frequency
The default of reference frequency is 0.00Hz. Before trial operation, confirm
the setting frequency of F0-00, and set the expected frequency through F0-07.
z Starting the Inverter
1.
In function setting status, press JOG, inverter starts up as per setting
frequency of F0-11(The default is 5.00Hz), and motor runs in the direction
as presently set, monitoring if it runs in a correct direction.
2.
Press RUN on the keypad or turn the start terminal on, the motor runs to the
setting frequency of F0-00 displayed.
3.
When reverse terminal is on, the motor reverses to setting frequency.
4.
Press UP/ DOWN to regulate the speed of motor during running process.
5.
Press STOP to enter ramp-to-stop status, the speed of motor decreases until
the motor stops.
To Next Page
Loading...
Need help?
General