MD280/MD280N User Manual Fault Diagnosis and Countermeasures
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Constant over voltage
No
No
Yes
Yes
Err07
If the input voltage is too high
If there are external forces driving the
motor to run during the running process
Ask for technical
support
Adjust the voltage to normal
range
Remove the external forces or
install brake resistor
Fig.8-6 Constant speed over voltage (ERR07)
Fig.8-7 Buffer resistance overload fault ˄Err08˅
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