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56
A01-00119 Rev. B
Table 5-2 only contains some simply troubleshooting. It the answer for
diagnosis is not apparent, please contact Powervar for the name of your
nearest factory authorized service provider.
Table 5-2 Troubleshooting
No. Phenomena
Possible Reason
1
Mains is normal,
but the UPS works
in battery inverting
status, buzzer beeps
intermittently.
The contact of each contact, socket is bad,
which leads to AC input is blocked.
2
After installing, close
switch or power switch,
the fuse will trip or burn
out.
The input wires of UPS are wrongly connected,
such as the neutral wire and live wire or live
wire and earthing wire (cabinet) is reverse
connected, or the three wires of output is
wrongly connected.
3
After starting, the UPS
can output 480V AC
power, but the UPS
works in bypass status.
• The load capacity exceeds the rated output
capacity. It is necessary to decrease load or
use a UPS with bigger output capacity.
• If it is temporary bypass caused by starting
the load and can recover automatically, that
is normal.
4
After starting, the
UPS output normally,
but once starting the
load, the UPS stop
outputting immediately.
• The UPS is serious overload or short-circuit
of output return circuit, it is necessary to
decrease the load to normal capacity or
find out the result of short circuit. Common
reason is that output socket is short circuit or
input short-circuit after the device damage.
• The startup of load is not in the order of
“big power load
A
small power load”. It is
necessary to restart the UPS and start the
load in the order of “big power load
A
small
power load” after UPS running stably.
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 ...