User`s manual
D:\manual\UM_PCM-ULT\ML_Ult3k\661-UT3K-002-31.doc 
KEVIN KU  第 17 頁 2003/3/4 
4. A
LARM
4.1 “BACKUP”(slow alarm) 
When the UPS is working under “BACKUP” mode, the UPS would emit audible alarm. The 
alarm stops when the UPS is return to “LINE” mode operation. Anyone can stop the alarm by 
press the “ON” button during backup mode.   
Attention:
 The alarm of “BACKUP” is going to beep every four seconds. (Slow-speed 
beep). 
Attention:
 The UPS provides mute function for the warning. When the beeping sound 
occurs, press "ON" to stop it; and press "ON" again to regain the sound. 
4.2 “LOW BATTERY”  (rapid alarm) 
In the “BACKUP” mode, when the energy of battery becomes to lower level. (about 
20%~30%) The UPS beeps rapidly until the UPS shuts down from battery exhaustion or 
returns to “LINE” mode operation. 
Attention: 
The alarm of the batteries caused by low voltage beeps every second. 
(Fast-speed beep). 
Attention:
 The rapid alarm under “LOW BATTERY” condition can't be erased.   
4.3 “FAULT” (continuous alarm) 
Here is listing some “FAULT” conditions as following for reference. 
4.3.1 “FAULT code 04” (LCD Panel only) 
When the UPS is working under overload condition (the connected loads exceed the 
maximum rated capacity), the UPS will emit continuous alarm to warn an overload 
condition. In order to protect the unit and the loads, the UPS will be automatic 
shutdown. Disconnect nonessential devices from UPS to eliminate the overload 
alarm. 
4.3.2 “FAULT code E07” (LCD Panel only) 
The UPS emits continuous beeps and the “FAULT” illuminates if the battery fails within the 
self-test. See section 8 to replace battery and call your dealer for services.     
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