11.7 Bypass Fuse Exchange

 

Always power the UPS off before exchanging the fuse. Failure to do so can

 

cause electric shock.

CAUTION

Be careful to avoid injury or electric shock.

 

 

If the bypass fuse blows, the red ALARM indicator lights and output from the output terminals stops.

Proceed as follows to exchange the fuse for a new fuse, using the supplied bypass fuse.

①Stop the inverter by pressing and holding it for 1 second, and then set

MAIN SW to “OFF”.

②Remove the fuse on the back panel of the UPS by pushing it in with a minus screwdriver and turning it in the counterclockwise direction.

③Insert the new fuse, and return it to the original location by turning it in the clockwise direction.

④ Set MAIN SW to “ON”, and then start the UPS by pressingand holding it for
1 second.

 

For details about UPS startup, see §9.1 “UPS Startup (Normal Operation)”.

UPS back panel

Bypass fuse

EXT.

BATT

MAIN SW

Note

・If you exchange the bypass fuse while the UPS is powered on, the red ALARM indicator will remain lit until you power the UPS off. Always power the UPS off before exchanging the fuse.

・Discard the old fuse as non-combustible industrial waste after exchanging it.

This completes the fuse exchange.

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