Powerware 5140 - Manual (Page 65)

Troubleshooting
57 Powerware ® 5140 User’s Guide
:
www.powerware.com
C H A P T E R 9
T
ROUBLESHOOTING
This section explains:
: Self-test diagnostic
: Site wiring fault
: UPS alarms and conditions
: How to silence an alarm
: Service and support
Initiating the Self-Test
Press and hold the button for three seconds to initiate the self-test.
During the test, the LEDs illuminate as various parts of the UPS are
checked. If the UPS finds a problem, the
indicator illuminates and
the audible alarm beeps.
NOTE The self-test cannot be performed while the UPS is in Battery mode.
Site Wiring Fault
The Site Wiring Fault alarm is disabled by default and is only needed for
installations with a grounded-neutral electrical system. You can enable
the alarm through the System Setup menu on the front panel (see
page 42).
The Site Wiring Fault alarm detects a ground wire connection that does
not exist or reversed line and neutral wires in the line receptacle. If the
condition is detected during startup, the UPS does not supply power to
your equipment. If the condition is detected during Normal mode, the
UPS alarm beeps and the
indicator flashes. Have a qualified
electrician correct the wiring fault.