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DELTA DOC CENTER
25
The exhaust fans and ventilation
grills may be obstructed.
Choose a well-ventilated area
to position your UPS to allow
adequate dissipation of heat.
UPS over temperature.
The environment temperature
exceeds 40
o
C (104
o
F).
Position your UPS in cooler
area.
“FAULT”LED lights on,
alarm beeps
UPS failure. Call fore service engineer.
“OVERLOAD” LED
lights on and buzzer
beeps continuously.
Overloaded. Remove some critical load.
FAULT MESSAGE
Following information indicates various symptoms.
Use this information to determine what factors cause the problem .
1. Alarm will sound to alert user that the UPS requires attention.
2. One or more additional load/battery level LED indicators will illuminate to provide a
diagnostic aid to the operator, described as below:
Output temperature protect D & C LEDs light on
Output over voltage protect D LED light on
Output under voltage protect C LED light on
Bus over voltage protect B LED light on
Bus under voltage protect A LED light on
Fig 7-1
In case that failure is happened and utility is too low or too high, the UPS output will
disable and the bypass and line led will flash.
Fig 7-2
If problem continues, contact your local dealer.
ABCD
ABCD
SHEET 26 TO 27