OPTI-UPS DS120KC33 - Manual (Page 51)

(1)Input power to low or no utility Recover utility to within+/-20%
(2)Battery voltage decreases to low
voltage point
Unload to 10%~20% of load
(3)Ol-3320 detects circuit error Replace ol-3320
(4)Ol-3302 detects circuit error Replace ol-3302
(5)Ol-3300 feedbacks circuit error Replace ol-3300
Battery is in low voltage
and UPS is about to be
shut down
(6)Error on ol-3300 program
parameter
Correct program parameter
(1)No battery Add battery
(2)Battery power is not insufficient Recharge battery
(3)Ol-3302 detects circuit error Replace ol-3302 Error on battery test
(4)Ol-3300 program parameter
inaccuracy
Correct program parameter
(1)Emergency switch functions Recover Emergency Switch
(2)Input short circuit Eliminate short circuit
(3)Ol-3304 detects circuit error Replace ol-3304
Emergency power
functions
(4)Ol-3300 detects circuit error Replace ol-3300