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SR100Hi Series - 100W DC UPS
6. CONNECTION AND INITIAL TESTING
1. Check input and output voltages of system, ensure that they match the equipment. All loads should be isolated.
2. Check polarity of all wiring. Place temperature sensor probe near or on batteries.
3. Plug in ac input and turn power on. Both LEDs will light up after approx. 4 sec, "BATT OK" LED will go out after another 10 secs
(since there is no battery connected). DC output voltage should appear at both load and battery outputs (ensure screws are
tightened down on the connector block).
4. Turn off input power.
5. Connect battery.
6. Check that ELCB (internal electronic circuit breaker) closes by shorting together the BATTERY –ve and LOAD –ve terminals for
about 2-3 sec. You will hear a relay operate and both LEDs will light up. If this does not happen, there is a fault in the wiring or
the internal battery protection fuse is ruptured (see Note 2 below). The battery voltage will then appear at the load terminals
and the "BATTERY OK" relay energises. The "POWER OK" LED stays on for about 30 seconds.
7. Connect load wiring to LOAD+ and LOAD- terminals. Check that the load does not exceed 110% of the unit. Any peak loads which
are > 110% must be connected to the B+ and B-terminals.
8. Turn on ac power.
9. After the batteries are fully charged, check that the battery continues to power up the load when the input power is turned off.
7. LED INDICATION
LEGEND :
Power
Battery OK
Power
LED
Alarm
OK LED
Normal
Normal
Normal
Alarm
Alarm
Alarm
Normal
Normal
Please note that the last three conditions apply only if the battery condition test option is enabled.
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On
Flashing
Battery
Low Alarm
System Normal: AC power is on, PSU output is OK, battery circuit is OK and battery voltage is > V Battery
Normal
Low.
Normal
Battery detection test imminent (LED begins flashing prior to test ).
System AC power is on, PSU output is OK but either:
1.
Internal battery fuse has opened (only if battery has been reverse polarity
Alarm
connected), or
2.
Battery circuit open - battery missing, or fuse / circuit breaker / wiring fault.
Either AC power has failed, or PSU has failed.
Normal
Battery system is OK
AC Power is off / DC has failed and battery has discharged to < V Battery Low, unit will continue delivering
Alarm
battery current until low level initiates ELVD.
AC Power is off / DC has failed and ELVD has activated and disconnected battery from load. Residual
Alarm
current drain on battery following ELVD <1 mA.
Normal
Battery Condition Test is in progress: LEDs flash alternately
Alarm
Battery Condition Unserviceable: failed to maintain terminal voltage during battery condition test
Flashing Slowly
Condition
77777 77
Off
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