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UPS Operating Instructions
NOTE
7.
Switch OFF the utility power where the UPS is connected.
NOTE
5 5 . . 6 6
R R e e s s t t a a r r t t i i n n g g t t h h e e P P a a r r a a l l l l e e l l S S y y s s t t e e m m
To restart the parallel system:
1.
Verify that all UPS breakers on the parallel tie cabinet are in the OFF position.
2.
Switch ON the utility power where the UPSs are connected.
3.
Wait for the front panel LCD to illuminate.
The
4.
Switch all battery circuit breakers to the ON position.
The
5.
Switch the UPS breakers on the parallel tie cabinet to the ON position.
6.
Verify that no alarms appear on the UPS front panel display.
If the
front panel to view the active alarms. Correct the alarms and restart if necessary.
7.
Press the
8.
Press the
until the UPS stops beeping.
The UPS goes to Bypass mode for five seconds, and then the
should be in Normal mode.
9.
Press the
5 5 . . 7 7
P P a a r r a a l l l l e e l l U U P P S S B B y y p p a a s s s s O O p p e e r r a a t t i i o o n n
To switch the parallel UPS from Normal mode to maintenance bypass :
1.
From any UPS, set the system to internal Bypass mode:
•
Using the
button.
•
Press the
The
mode.
50
Eaton 9155 Parallel UPS (8–15 kVA) User's Guide 164201592—Rev E0
If there is only one breaker for all UPSs, do not switch off utility power until all UPSs are
shut down.
If you are shutting down all the UPSs in a parallel system, repeat Steps 2 through 6 for
each UPS then remove utility power.
indicator flashes on each UPS.
indicator stops flashing on each UPS.
indicator is flashing, do not proceed until all alarms are clear. Check the UPS status from the
ESC
button once and then press the
button to select the System On option; press and hold the
ESC
button until the Eaton logo or Mimic screens appears.
button on the front panel display, scroll to the Control menu option and press the
button to select the Go to Bypass Mode option.
and
indicators illuminate, indicating the UPS system is operating in Bypass
button to select the TURN UPS ON/OFF menu.
button for three seconds,
indicator illuminates. Each UPS
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