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UPS STARTUP
Eaton 9170
+
UPS (3–18 kVA) User's Guide S 164201393 Rev E www.eaton.com/powerquality
70
6. If applicable, test proper operation of optional external control
signals and computer communication before connecting the load.
(See “DB-9 Communication Port” on page 92 for details.)
7. Plug the equipment to be protected into the UPS output
receptacles. Turn on the equipment that is connected to the UPS.
NOTE DO NOT protect laser printers with the UPS because of the exceptionally high power
requirements of the heating elements.
NOTE The total volt-ampere load must not exceed the volt-ampere rating of the entire
cabinet. Failure to balance the loads may cause an overload alarm even if the full capacity of
the UPS has not been reached.
For Eaton 9170+ UPS models with low-voltage output receptacles,
it is recommended to divide loads between upper and lower
receptacles as equally as possible. (In some configurations, each
set of receptacles is limited to one half of the total UPS capacity.)
Whether the cabinet has one panel containing eight receptacles,
two panels containing 16 receptacles, or three panels containing
24 receptacles, you should try to supply half of the UPS output
through the upper half of the receptacles (X1) and the other half
through the lower half of the receptacles (X2), as shown in
Figure 50.
X1
X2
X1
X2
Figure 50. Balancing Receptacle Loads
NOTE The factory-default wiring for all high-voltage receptacles in a chassis without a
power cord is 3-wire plus ground input. If you have a universal power module (ASY-0674), all
receptacles MUST be re-wired for a 2-wire plus ground input configuration as shown in
Figure 19 on page 31.