Inovance MD300A-S0.2BA - Fault Alarm and Countermeasures

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Chapter 7 Fault Diagnosis and Countermeasures
7.1 Fault Alarm and Countermeasures
The MD300A inverter has 21 pieces of alarm information and protection functions in total. Once the
fault occurs, the protection function starts, the inverter stops output, the fault relay contact is
activated, and the fault code will be displayed on the display panel of the inverter. Before seeking for
services, the user may conduct the self-check according to the instructions given in this section,
analyze the fault causes, and find out the solutions. If relevant service is needed, please contact the
inverter agent or directly contact our corporation.
Faults of inversion unit
Check if the output loop of the inverter
has short circuit
Whether the cable connecting the
inverter and the motor is too long
Check if the internal wirings
of the inverter are loose
Seek for technical support
Y
Y
Y
Remove the peripheral fau
l
Install the reactor
or output filter
Secure the internal wires
Faults of inversion unit
Check if the output loop of the inverter
has short circuit
Whether the cable connecting the
inverter and the motor is too long
Check if the internal wirings
of the inverter are loose
Seek for technical support
Y
Y
Y
Remove the peripheral fau
l
Install the reactor
or output filter
Secure the internal wires
Figure 7-1 Faults of inversion unit (ERR01)