FUSE REPLACEMENT PROCEDURES

CAUTION: Before changing the input fuse, turn off the UPS, and unplug the supply lead from the AC input supply and from the UPS. Replace the fuse with the same type and rating.

700 / 1000 VA

1500 VA

Insert flat blade

 

screwdriver into slot

Input Fuse

 

Remove Install

Fuse Holder

Remove Install

1.Remove the fuse holder by inserting a flat blade screwdriver into the slot (twist by hand for the 1500 VA model) and rotating counter-clockwise to remove.

2.Remove the input fuse.

3.Locate the spare input fuse that is included with the UPS.

4.Insert the spare fuse into the fuse holder, and reinstall assembly into the UPS. Using the screwdriver (twist by hand for the 1500 VA model), rotate clockwise until fuse holder locks into position.

5.Reconnect the input power lead to the UPS, and the input power lead to the input AC supply.

6.Restart the UPS. The UPS is ready for normal operation.

NOTE: For 2000 VA units press the reset circuit protector button, and 3000 VA units, reset circuit protector.

AUDIBLE ALARM CONDITIONS

 

CONDITION

 

ALARM

 

 

 

 

 

Battery mode

 

One short beep every ten seconds; more

 

 

(utility failure)

 

than two minutes of run time remaining

 

 

Low battery

 

Two short beeps every five seconds; less

 

 

 

than two minutes of run time remaining

 

 

 

 

 

 

Output overload (bypass)

 

One short beep every half second

 

 

Over temperature (bypass)

 

One second beep every four seconds

 

 

DC Bus overvoltage (bypass)

 

One second beep every four seconds

 

 

Control power supply failure

 

One second beep every four seconds

 

 

(bypass)

 

 

 

 

PFC failure (bypass)

 

One second beep every four seconds

 

 

Inverter failure

 

One second beep every four seconds

 

 

Battery Test failure

 

Two second beep every minute

 

20

DISCONTINUED

PRODUCT

Page 20
Image 20
Liebert 700-3000 VA user manual Fuse Replacement Procedures, Audible Alarm Conditions