Epever EG1200CU, User Manual

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Chapter VII SIMPLE TROUBLESHOOTING GUIDE
Item Failure Possible Reasons Simple Solution
1 HMI displays
“IOVP”; Red LED
fast blink;
Intermittent buzzing;
Output termination. The input voltage is
too high;
The input voltage has
a great fluctuation. Measuring the input
voltage is too high or not;
Checking the value of
input voltage is accurate or
not;
If the input is mains, it
will be recovered
automatically after mains
has been recovered.
If the input is oil-machine,
it needs to be turned off.
Then checking the state of
the oil-machine.
2 HMI displays
“ILVP”; Red LED
slow blink;
Intermittent buzzing;
Output termination. Input undervoltage;
The input voltage has
a great fluctuation. Measuring the input
voltage is too low or not;
Checking the value of the
input voltage is accurate or
not;
If the input is mains, it will
be recovered automatically
after mains has been
recovered.
If the input is oil-machine,
it needs to be turned off.
Then checking the state of
the oil-machine.
3 HMI displays
“OLVP”; Green
LED slow blink;
Always buzzing;
Output termination. Output undervoltage
during work process;
Load current exceed
the current limitation
set by the current set
value. Please make sure that the
current exceeds the
limitation and then
increase it when
connecting with a resistive
load and so on.
Checking the battery
voltage is normal or not
(Only 48V system).
Make sure that the battery
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