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The method of using power surge to charge for the inverter:
The right selection of power surge depends on the supply power of the inverter. Single phase 220V AC/2A
power surge applied to the inverter with single/three-phase 220V AC as its input voltage. The inverter with
single/three-phase 220V AC as its input voltage can apply Single phase 220V AC/2A power surge (L+ to R
and N to S or T). All DC bus capacitors charge at the same time because there is one rectifier.
High-voltage inverter needs enough voltage (for example, 380V) during charging. The small capacitor power
(2A is enough) can be used because the capacitor nearly does not need current when charging.
Change electrolytic capacitors
Read and follow the instructions in chapter Safety Precautions. Ignoring the
instructions may cause physical injury or death, or damage to the equipment.
Change electrolytic capacitors if the working hours of electrolytic capacitors in the inverter are above 35000.
Please contact with the local INVT offices or dial our national service hotline (400-700-9997) for detailed
operation.
6.1.3 Power cable
Read and follow the instructions in chapter Safety Precautions. Ignoring the
instructions may cause physical injury or death, or damage to the equipment.
1. Stop the drive and disconnect it from the power line. Wait for at least the time designated on the inverter.
2. Check the tightness of the power cable connections.
3. Restore power.
6.2 Fault solution
Only qualified electricians are allowed to maintain the inverter. Read the safety
instructions in chapter Safety precautions before working on the inverter.
6.2.1 Alarm and fault indications
Fault is indicated by LEDs. See Operation Procedure. When TRIP light is on, an alarm or fault message on
the panel display indicates abnormal inverter state. Using the information given in this chapter, most alarm
and fault cause can be identified and corrected. If not, contact with the INVT office.
6.2.2 How to reset
The inverter can be reset by pressing the keypad key STOP/RST, through digital input, or by switching the
power light. When the fault has been removed, the motor can be restarted.
6.2.3 Fault instruction and solution
Do as the following after the inverter fault:
1. Check to ensure there is nothing wrong with the keypad. If not, please contact with the local INVT office.
2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault parameters to
confirm the real state when the current fault occurs by all parameters.
3. See the following table for detailed solution and check the corresponding abnormal state.
4. Eliminate the fault and ask for relative help.
5. Check to eliminate the fault and carry out fault reset to run the inverter.
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