
55
A01-00119 Rev. B
No. Phenomena
Fault diagnois and check-
ing points
Solution
5
The touch screen
and LED are off.
Check if the bypass/ mains
switch is closed and the
power board is fault.
Please inform
professionals to
maintain.
6
The red ALARM
indicator is on,
and the buzzer
beeps continu-
ously.
Check if the load has a
short-circuit.
Get rid of the
short-circuit point,
close the inverter,
and then restart the
inverter.
Check if the fuse of inverter
is fusing or IGBT module is
abnormal.
Replace the fuse or
IGBT module
Check if AC input is not
present, and the battery is
under low-voltage protection.
It will start
automatically if the
mains normal.
7
The LOAD
indicator is on in
red.
The output of UPS is
overloaded.
Decrease the load.
8
When power on
normally, it cannot
output normally.
Check whether the bypass/
inverter SCR drive board is
fault.
Call for service
9
Communication
abnormal
Communication wiring not
complete
Check wiring
The communication software
is not successfully installed.
Install the software
correctly.
The setting for computer’s
communication window is
wrong.
Properly set the
communication port.
Above problems are all
eliminated, but it still cannot
normally communicate.
Call for service
5.2 Dealing with Common Faults
When starting the UPS, if the UPS cannot work normally, please refer
to Table7-2 to look for reasons. At the same time, please check if it is
caused by external environment, such as temperature, humidity not
meet the requirement or overload.
Содержание Powervar 3400 Series
Страница 1: ...3400 Series UPS User s Manual 80 100 125kVA ...
Страница 9: ...9 A01 00119 Rev B Tools Tools ...
Страница 26: ...26 A01 00119 Rev B Figure 2 5 Normal System operation Figure 2 6 System on battery ...
Страница 27: ...27 A01 00119 Rev B Figure 2 7 System on bypass Rectifier off Figure 2 8 System on bypass rectifier on ...
Страница 34: ...34 A01 00119 Rev B Figure 2 19 System output information 1 Figure 2 20 System output information 2 ...
Страница 64: ...64 A01 00119 Rev B 9 0 PRODUCT DRAWINGS ...
Страница 65: ...65 A01 00119 Rev B ...
Страница 66: ...66 A01 00119 Rev B ...
Страница 67: ...67 A01 00119 Rev B ...