197
Symptoms Conditions Possible causes Solutions
The drive
stops
unexpectedl
y during
operation.
In the case that there is
no stop command, the
drive stops
automatically and the
run LED is off.
Fault alarm occurs. Find out the fault causes and reset the fault
A single cycle of the simple PLC is
completed.
Check the PLC parameter setting
There is power supply interruption. Check the power supply
Running command channel
switches
Check the relevant function code setting of the
operation and running command channel
Too large DEV Modify the DEV detection value setting
The positive/negative logic of the
control terminals changes.
Check if the P09.15 setting corresponds with
the requirements
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
The drive does not
work after the run key
The terminal with the coast-to-stop
function is enabled.
Check the coast-to-stop terminal
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