441
Appendix 3 Warning Code List
Warning Code
Code Screen Display Cause Troubleshooting
Current stall
When the output current is
larger than Stall prevention
operation level, the three lights
on the left side of the screen
flicker, indicating that the
inverter is in current stall mode.
In this case the motor may not
run smoothly.
1. Check if the values of
P.22, P.23, and P.66
are proper.
2. Check if the values of
P.7 and P.8
are too
small.
Voltage stall
When the voltage between +/P
and -/N is too high, the three
lights on the right side of the
screen flicker, indicating that
the inverter is in voltage stall
mode. Then the motor may not
run smoothly.
1. Add a brake resistor
between +/P and PR.
2. Check if the values of
P.7 and P.8 are too
small
LV
Low voltage
Input voltage is low.
Supply with the normal
voltage
LT motion
When the output current is
more than twice the rated
current, but it doesn’t reach the
stall level, all the six lights on
both side of the screen flicker,
indicating that the inverter is in
LT mode. Then the motor may
not run smoothly.
1. Please increase the
acceleration/decelerat
ion time in case of
abrupt
acceleration/decelera-
tion.
2. Avoid abrupt load
increasing.
Note: The above phenomenas are to show the working state of the inverter, and the inverter will not stop. To get
around the above troubles, please adjust the parameters properly or check the power supply and load
carefully.
PU
MON
RUN
Hz
V
A
闪烁
PU
MON
RUN
Hz
V
A
闪烁
PU
MON
RUN
Hz
V
A
flicker
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