Megmeet MV600L Series - Drive Fails to Work

67
Symptoms Conditions Possible causes Solutions
operation. run LED is off.
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
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