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4.5 Procedure For Switching The UPS ON From Static By-Pass
1.
Press on the UP or DOWN button when there is “COMMAND MENU” message on the front panel of the
UPS. Then press “ENTER” button.
2.
Press on the UP or DOWN button when there is “ENTER <INVERTER>” message on the front panel of
the UPS. Then press “ENTER” button for 3 seconds. L4 static bypass led off and L6 inverter led on. Now
your load is feeding from the Static By-pass.
3.
See “STATUS NORMAL!” message on the front panel. Now the UPS system is on normal operation. You
can start-up your PC, printer etc.
4.6 Procedure For Completely Powering Down The UPS
TURN OFF THE UPS
All the power switches, isolators and circuit breakers will open. (Turn off into “0” (OFF) position). There will be
no voltage on the load.
WARNING!!! This procedure will cut the energy of all the equipments, which are
connected to UPS output.
10-15-20 kVA : S1 (inverter input)
S4 open (UPS output) switch (Turn off into”0” position).
S2 (static by-pass)
F1-F2-F3 rectifier input fuses
BATT.(+) and BATT.(-) Open this fuses and the switches. Into “0” (OFF) position
30 kVA
: F1-F2-F3-S1 (rectifier input fuses-inverter input)
S4 open (UPS output) switch (Turn off into”0” position).
S2 (static by-pass)
BATT.(+) Open this fuses and the switches. Into “0” (OFF) position
4.7 When Utility Power Is Interrupted
When there is a utility power interrupted, the L6 inverter led continuously lit also L3 battery and on the LCD
“A10 LINE FAILURE” message appears. And also an audible alarm sounds. Your UPS continues to convert
the battery voltage to AC voltage and protect against loss of data and failure. The autonomy can be
increased by disconnecting relatively unimportant loads. But do not connect this load again while the
autonomy. When the utility power is restored the UPS will return to normal operation and on the front panel of
the UPS “A45 MAINS OK” mesage appears.
When there is a “A7 BATTERY LOW” message appears and audible alarm sounds shut down your PC. If not
all the batteries will be discharge in a few minutes.
After you shut down the critical load (computer system). Apply the completely powering down the UPS.
Apply the normal operation procedure to start up the UPS again after a long time later.
NOTE:
Do not forget to turn on the battery circuit breaker into “1” (ON) position when
there is a mains voltage return. If not, in case of a second power cut there will be no voltage for
the critical load.
If you have a reserve generator, you can use it to feed the UPS’s input and the batteries starts to
charge. By using UPS and the generator at the same time ensures to charge the batteries faster.
Summary of Contents for MagicLight ML-310
Page 2: ......
Page 27: ...24 Figure 3 2 Parallel UPS connection...
Page 36: ...33 optional Figure 5 3 b UPS Battery Group Connection With Battery Fuse...
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