72
Eaton 9155 UPS (8–15 kVA) User’s Guide 164201553—Rev H0
1.
If you have an optional MBM/PDM, verify that the maintenance bypass switch is in the UPS position (see
).
2.
Switch all battery circuit breakers to the ON position.
NOTE
Leave the battery circuit breaker(s) in the ON position during this operation. If you need
to cancel this operation, wait until the front panel LCD illuminates before switching the
battery circuit breaker(s) off.
3.
Wait for the front panel LCD to illuminate.
4.
Press any button on the front panel display to activate the menu options.
5.
Within three minutes, press the
button on the front panel display and then press the
button to
select the TURN UPS ON/OFF menu.
6.
Press the
or
button to select the TURN UPS ON option; press and hold the
button for three
seconds, until the UPS stops beeping.
The UPS starts in Battery mode within two minutes and supplies battery power to your equipment.
and
are illuminated.
77..22..33
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To start the UPS in internal Bypass mode:
1.
If you have an optional MBM/PDM, verify that the maintenance bypass switch is in the UPS position (see
).
2.
If an optional isolation transformer is installed, switch the input circuit breaker to the ON position.
NOTE
When using the optional isolation transformer, Bypass mode is available only for 240V
phase-phase (180° phase angle).
3.
Switch ON the utility power where the UPS is connected.
4.
Wait for the front panel LCD to illuminate.
The
indicator flashes.
5.
Switch all battery circuit breakers to the ON position.
The
indicator stops flashing.
6.
Press any button on the front panel display to activate the menu options.
7.
Using the
button on the front panel display, scroll to the Control menu option and press the
button.
8.
Press the
button to select the Go to Bypass Mode option.
The
and
indicators illuminate, indicating the UPS is operating in Bypass mode. The load
is now powered by utility power.
To switch to Normal mode from internal Bypass mode:
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