Eaton 9PXM - Figure 55. Communication Ports

64 4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 09
Figure 55. Communication Ports
USB Port
(CN12)
DB9 Port
(CN17)
4. 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.
5. The UPS control panel display automatically turns on whenever input power is present and at least one
power module is installed (see , “6.1 UPS Startup ”).
6. Set up the initial operating parameters through the control panel display (see “
6.5 Initial Startup Parameters ” ).
7. If applicable, test proper operation of optional external control signals and computer communication before
connecting the load. (See “8.5 DB-9 Communication Port ” for details.)
8. If there are receptacles on the UPS rear panel, plug the equipment to be protected into the UPS output
receptacles.
NOTE DO NOT protect laser printers with the UPS because of the exceptionally high power
requirements of the heating elements.
9. Turn on the equipment that is connected to the UPS.
10. If there is an external bypass switch, ensure a proper phase check has been completed then turn the
switch to UPS. Otherwise, close the load distribution circuit breaker(s).
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1. If your unit is wired to an external BPM bypass switch, you must perform a voltage and phase check
(Steps 2 through 1 ). Otherwise, skip to Step 1 .
CAUTION
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.
2. At the bypass switch, press the red button and turn the switch to UPS.
Startup for Units Installed with an Eaton BPM Bypass Switch