Eaton 9PXM User Manual Download

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4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 09

109

UPS Overtemperature

LED is On.
1 beep every 3 seconds.

The UPS internal temperature is too high
or a fan has failed. At the warning level,
the UPS generates the alarm but remains
in the current operating state. If the
temperature rises another 5°C, the UPS
transfers to Bypass mode or shuts down
if Bypass is unusable.

If the UPS transferred to Bypass mode,
the UPS will return to normal operation
when the temperature drops 5°C below
the warning level. If the condition
persists, shut down the UPS.
Clear vents and remove any heat sources.
Allow the UPS to cool. Ensure the airflow
around the UPS is not restricted. Restart
the UPS. If the condition continues to
persist, contact your service
representative.

The UPS does not start.

A utility failure has occurred.
The Remote Power Off (RPO) switch is
active or the RPO connector is missing.

Contact a qualified electrician.
If the UPS Status menu displays the
"Remote Power Off" notice, inactivate the
RPO input.

Silencing the Alarm

Press the ESC (Escape) button on the front panel display to mute the alarm. Check the alarm condition and
perform the applicable action to resolve the condition. If the alarm status changes, the alarm beeps again,
overriding the previous alarm muting.

Question: how do I...

Answer

Turn the UPS on?

Verify that all power modules are securely plugged into the
cabinet, and each module secured in it’s slot.
If external battery cabinets are installed, confirm that the DC
emergency disconnect switch button on the back of the cabinet
is closed (pulled out). To close the DC emergency disconnect
switch button, 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.
If an external bypass switch is installed, turn the switch to the
LINE or UPS position. Refer to the front panel display and press
the button labeled ON. (If On/Off control is password-protected,
enter your password. Confirm the selection by pressing the
button labeled Yes. After a few seconds, the green LED
illuminates to signal the UPS is operating and producing power.

Turn the UPS off?

Refer to the front panel display and press the button labeled
OFF. Confirm the selection by pressing the button labeled Yes.
(If On/Off control is password-protected, enter your password.

Turn off the alarm beeps?

Press the lower left button on the front panel display. Note the
alarm message and see “Typical Alarms and Faults” on page
107 to correct the problem. After the problem has been
resolved, press the lower center button to clear the alarm.

View the alarm log?

Go to the menus in

Figure 71

. Press the enter button to view

the most recent alarm. Press the down arrow button to scroll
down through the log to view previous alarms.

Check the input or output voltage?

Go to the menus in

Figure 62

to select the input and output

voltages.

Troubleshooting