Inovance MD300A-S0.2BA - Common Faults and the Fault Diagnosis

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Motor tuning fault
Whether the motor parameters have
been correctly input as per the data on
the nameplate
Whether the parameters identification is timeout
Seek for technical support from
the manufacturer or replace
the control board.
Correctly input the
motor param eters.
Check the motor wires
Motor tuning fault
Whether the motor parameters have
been correctly input as per the data on
the nameplate
Whether the parameters identification is timeout
Seek for technical support from
the manufacturer or replace
the control board.
Correctly input the
motor param eters.
Check the motor wires
Fig. 7-15 Motor tuning fault (ERR19)
7.2 Common Faults and the Fault Diagnosis
The following faults may probably occur during the use of the inverter, please refer to the methods
described below to perform the fault analysis:
1. No Display after power-on
1) Check with multimeter if the input power supply of the inverter is consistent with its rated
voltage. If there is something wrong with the power supply, please check and remove it.
2) Check if the bus voltage is normal, if not, the problem may generally occur at the rectifying
bridge; If the voltage is normal, the problem may occur at the switching power supply. Seek for
technical support.
2. The Circuit breaker Trips After Power-on:
1) Check if there exists earthing or short circuit between the input power supplies and then
remove the problem.
2) Check if the rectifying bridge has been broken down. If so, seek for technical support.
3. The Motor Does not Run After the Inverter Starts to Run: