EM500 Open-Loop Vector Control Inverter User Manual
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Input power cable is connected to inverter’s input terminals R, S and T.
Inverter’s output terminals U, V and W are connected to motor’s input
terminals.
Control circuit terminals are correctly connected to the control devices and
terminals are disconnected.
Turn on the power switch when the settings above are correct.
are output ends of inverter’s DC bus voltage; represents the
protective grounding terminal and PB represents cable end of braking resistor.
Damages of inverter caused by incorrect wiring of them are not covered in the
warranty.
5.2.2Confirm the Power-on Status
If inverter works normally after power-on, keypad will display inverter’s present
status code and parameters. In case of other abnormal display phenomena, see Chapter 9
Troubleshooting.
Running status observation:
1. Check whether load runs at a correct direction.
2. At low-speed running, increase the set frequency only when load machine
stabilizes.
3. Change input frequency or rotational speed and observe whether motor has
any vibration or noise.
4. During operation, observe the parameters of monitoring code F18.06 and
confirm whether inverter output current is normal.
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