Frequently Asked Questions - Eaton 9PXM User Manual

Frequently Asked Questions

The following table provides answers to commonly asked questions.
Table 15. Frequently Asked Questions
Question: How do I...
Turn the UPS on?
Turn the UPS off?
Turn off the alarm beeps?
View the alarm log?
Check the input or output
voltage?
Check the battery voltage?
Check the condition of the
batteries?
Apply power to the load if the
unit will not operate?
Turn the external bypass
switch?
Set the UPS to turn on in High
Efficiency mode?
Change the level of system
redundancy?
Change the batteries?
Add/delete one or more strings
of batteries?
Add/delete one or more power
modules?
Answer
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.
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.
Press the lower left button on the front panel display. Note the alarm message and see "Typical
Alarms and Faults" on page 91 to correct the problem. After the problem has been resolved, press
the lower center button to clear the alarm.
Go to the menus in Figure 59 on page 67. Press
B
Press the button to scroll down through the log to view previous alarms.
Go to the menus in Figure 50 on page 59 to select the input and output voltages.
Go to menu in Figure 50 on page 59 To view other system status parameters
The results of the most recent battery test are stored in the battery menu in Figure 50 on page 59.
To run a test of battery condition, go to menu in Figure 51 on page 60 and press the
When the test is complete, the results are again stored in the Battery Results parameter.
Turn the optional external bypass switch to either the SERVICE or the LINE position. In these two
positions, utility power flows directly to the load. In the SERVICE position, the UPS does not
receive utility power and may be worked on for maintenance purposes.
You must press the red button beside the switch before turning the switch.
From the In\Out settings menu select High Efficiency mode then select Enabled (see Chapter 7,
"In/Out Settings Menu" on page 62)
To view or change the redundancy level, go to the menu in Figure 53 on page 62.
Each pair of battery packs of a battery module forms one series string on the battery bus. See
"Battery Replacement" on page 73 for the battery replacement procedure.
Physically install or remove battery packs as described in "Battery Replacement" on page 73. If
not using a 9PXM EBM, record the capacity of external battery strings (in all external battery
cabinets) by going to menu Figure 50 on page 59
Physically install or remove power modules as described in "Power Module Replacement" on
page 74. The system operating software senses the number and location of all power modules in
the cabinet. If you want to change the number of redundant power modules, go to menu in
Figure 53 on page 62 and change the level of system redundancy.
Eaton 9PXM UPS (4-20 kVA) User's Guide
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the button to view the most recent alarm.
P-164000669—Rev 05
Troubleshooting
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button.
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