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Symptoms Conditions Possible causes Solutions
In the case that there is
no stop command, the
motor stops
automatically and the
drive run indicator light
is on (running at zero
frequency).
Fault resets automatically.
Check the fault auto reset setting and find out
the fault causes
Simple PLC pause Check PLC pause functional terminal
External interrupt
Check the external interrupt setting and find out
the fault source
The set frequency is 0. Check the set frequency
The startup frequency is higher than
the set frequency.
Check the startup frequency
There is something wrong with the
skip frequency setting.
Check the skip frequency setting
The closed loop output is
negative when the reverse running
is prohibited.
Check the P14.22 and the P08.18 setting
Enable the “disabling forward run”
terminal during forward run process
Check the terminal function setting
Enable the “disabling reverse
running” terminal during reverse
running process
Check the terminal function setting
The frequency adjustment setting is
0.
Check the P02.11 and the P02.12 setting
Transient low-voltage compensation
is applied when power-fault restart
and the power supply voltage is too
low.
Check the power-fault restart function setting
and the input voltage
The drive
does
not work.
The drive does
not work after the run
key is pressed and the
running LED is off.
The terminal with the coast-to-stop
function is enabled.
Check the coast-to-stop terminal
The “disabling run” terminal of the
drive is enabled.
Check the “disabling run” terminal of the drive
The terminal with the external stop
function is enabled.
Check the terminal with the external stop
function
Under the three-wire control mode,
the terminal with the three-wire
operation control function is not
closed.
Set and close the three-wire operation control
terminal
Fault alarm occurs. Troubleshoot
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