7. Wiring

 

Check that input and output power plugs are firmly seated. Do not exceed the

 

rated capacity when connecting loads to the output terminals. Check that

 

plugs and cards are firmly seated in the external interfaces. Failure to observe

CAUTION

these precautions can result in electric shock, fire, or bodily injury.

The input power plug must be grounded. Failure to ground it can result in

 

electric shock.

 

 

7.1 UPS WiringCheck that MAIN SW is in the “OFF” position.Connect the INPUT power plug of the UPS to a utility power outlet.

EXT.

BATT

MAIN SW

Switch is “OFF”.

INPUT plug

(seen from prong side)

Note

E

When the AC input power is single-wire grounded, always connect the ground phase to the S terminal (phase) side on the UPS.

Length 1.8 m (7.09 inches)

To 3-prong grounded utility power outlet

The INPUT power plug is a 3-prong grounded type.

If the utility power outlet is a 2-prong type (there is no ground terminal), use a 3-prong ground adapter such as WH2432P (Matsushita Electric) or ME2920 (Meikosha).

Adapter wiring example

Ground near

Plate fixing screw

power service

Metal pipe

entrance

Adapter

 

 

Metal box

Ground

 

lead wire

Plate

 

16