Inovance MD280NT37P - Page 214

Fault Diagnosis and Countermeasures MD280/MD280N User Manual
- 214 -
No.
Fault
Phenomenon
Possible Cause Solution
reported. 3ǃ The internal parts
(thermal coupler or others)
of the inverter are
damaged.
manufacturer.
5
The motor
does not
rotate upon
Inverter
running.
1ǃThe motor is either damaged
or blocked.
2ǃThe parameter is set wrongly.
1ǃReplace the motor or
remove the mechanical
fault.
2ǃCheck and reset the
parameters.
6
DI terminal
invalid
1ǃ The parameter is set
wrongly.
2ǃ Wiring is conducting
wrongly.
3ǃ Control board fault
1ǃCheck and reset the
relevant parameters.
2ǃReconnect the cables.
1ǃ Consult the
manufacturer.
7
The inverter
frequently
reports over
current fault
and over
voltage fault.
1ǃ The motor parameters
are set wrongly.
2ǃ Speed-up/speed-down
time is impor
3ǃ Load fluctuates.
1ǃ Reset Group
F1 parameters.
2ǃ Set proper
acceleration/deceler
ation.
3ǃ Consult the
manufacturer.
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