Eaton 9PXM8S4K User Manual page 75

9. Measure the AC voltage between the following points on the terminal block and record in the space
below. This reading must be no more than 1 Vac; if it is, call your service representative.
Terminal 2 (AC From UPS Output) to 6 (AC Line Input)
10. Switch the bypass switch to LINE. Measure the voltage to the protected equipment (at the load
distribution panel) and verify that it is correct.
11. Switch the bypass switch to UPS and verify the voltage to the protected equipment is still correct.
12. Reinstall the bypass switch front cover and UPS front covers using the original screws.
13. If the UPS will not be operated immediately, switch the bypass switch to SERVICE and push in the DC
emergency disconnect switch button on the back panel of the external battery cabinet closest to the UPS.
Otherwise, continue to Step 14 to continue the UPS startup.
14. When starting the UPS, apply input power to the UPS by closing the service circuit breaker:
If external battery cabinets are installed, close the DC emergency disconnect switch button on the back of
each external battery cabinet. Insert the switch key supplied with the cabinet into the button and turn
clockwise 1/2-turn. Pull the button out to close the switch. Turn the key back counter-clockwise, and
remove the key.
15. The UPS front panel display automatically turns on whenever input power is present and at least one
power module is installed. Set up the initial operating parameters through the front panel display (see "
6.5 Initial Startup Parameters
16. If applicable, test proper operation of optional external control signals and computer communication before
connecting the load.
17. If there are receptacles on the UPS rear panel, plug the equipment to be protected into the UPS output
receptacles.
NOTE
18. Turn on the equipment that is connected to the UPS.
19. If there is an external bypass switch, turn it to UPS. Otherwise, close the load distribution circuit breaker
(s).
6 6 . . 4 4 S S t t a a r r t t u u p p f f o o r r U U n n i i t t s s i i n n s s t t a a l l l l e e d d w w i i t t h h a a B B P P E E T T y y p p e e S S w w i i t t c c h h
1. If your unit is wired to an external bypass switch, you must perform a voltage and phase check (Steps 2
through 13). Otherwise, skip to Step 14.
Before operating the bypass switch, use the following procedure to check the wiring for correct installation. To
prevent damage to the load, turn off the main circuit breaker in the load service panel or verify that the load
cannot receive power from the UPS.
If the UPS is in the standby mode and the bypass switch is in the LINE or UPS positions pressing the
red bypass switch interlock button will energize the UPS output.
Do not attempt to push the red interlock button or attempt to move the bypass switch handle if the
UPS is operating on battery power.
2. At the bypass switch, press the red button and turn the switch to UPS.
" ).
DO NOT protect laser printers with the UPS because of the exceptionally high power
requirements of the heating elements.
4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 10
Startup for Units installed with a BPE Type Switch
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