Technical data

Chapter 4 Operation
34
A
larm/
Protection/
Fault
Definition Possible causes
Recommended
solutions
then reboot the system;
3、Contact after-sales
service personnel
4、
ExtFanErr
The visible fan from
outside view is
working abnormally
1、Fan is blocked;
2、Fan service life
has expired;
3、Fan socket
connecter has poor
contact.
1、Observe for 5
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check for foreign
matters on fan blades;
3、Switch off 3-phase
work power supply and
then reboot the system;
4、Contact after-sales
service personnel
5、
EepromErr
Internal alarm
Internal memory
has a certain
problem
1、Observe for 5
minutes and see
whether the alarm will
be eliminated
automatically;
2、Contact after-sales
service personnel
Prote-
ction
1、
Te mpOv er
Ambient temperature
or temperature inside
inverter is too high
1、Ambient
temperature
outside the inverter
is too high;
2、Fan is blocked;
3、Cooling is
affected because of
incorrect
installation.
1、Confirm that external
ambient temperature is
within the specified
range of operating
temperature;
2、Check whether
radiation air inlet is
blocked;
3、Whether radiation fan
is blocked;
4、Check whether the
location of installation is
appropriate or not;
5、Observe for 30
minutes and see
whether the alarm will
be eliminated
automatically;
6、Contact after-sales