
22
1800 Series User Manual
UPS Display Status and Operating Condition
Operation Mode  | Display State  | LED State  | 
  | Alarm State  | Notes  | |||
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Normal  | 
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  | On Line  | On  | Alarm is off.  | 
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  | AC Input  | On  | 
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  | 20% to 100%  | On  | 
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  | *see Note 1,  | 
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  | page 23.  | 
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Battery Backup  | 
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  | On Line  | On  | Alarm will  | The unit will return to normal  | 
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  | Battery  | On  | sound for 1  | operation mode when AC  | 
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  | Backup  | On  | second at  | power is restored.  | 
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  | 20% to 100%  | On  | 10 second  | 
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  | *see Note 2,  | 
  | intervals.  | 
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  | page 23  | 
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Bypass  | 
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  | AC Input  | On  | Alarm is off.  | Battery backup is not available.  | 
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  | 20% to 100%  | On  | 
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  | *see Note 1,  | 
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  | page 23.  | 
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