Xtreme Power Conversion Corporation
T90 User’s Manual
Page 15
Uninterruptible Power Supply
EPO Port (Emergency Power Off)
A customer-supplied switch located remotely can be used to open the EPO connection and allows UPS output re
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ceptacles to be switched off. Since the EPO shuts down the equipment immediately, orderly shutdown procedures
are not followed. The UPS must be manually restarted in order to regain power to the outlets.
Network Transient Protector
The network transient protector, located on the back panel, has both IN and OUT jacks, and houses a single RJ-45
(10BaseT) network connector. Connect the input connector to the jack labeled IN, and the output connector to
the jack labeled OUT.
Load Segments
The power management software controls the sets of receptacles known as load segments which provides orga
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nized shutdown and startup of the equipment. Less critical equipment can be turned off during power outages
saving battery power for critical loads. The power management software manual has more details regarding this.
The load group status can be viewed from the LCD display and can be changed if necessary. These load segments
are usually handled with the UPS management software.
User’s Guide To Operations
Necessary information for operation of the unit is covered in this chapter. Normally the UPS runs automatically,
but for those few occasions such as just after installation, the starting and shutting down procedures are described
herein.
Starting and Shutting Down the UPS
Starting the UPS
• Ensure that installation was correct and successful and that the input power cable is connected to a well-
grounded outlet.
• The UPS can be started by pushing the
button on the front panel.
• The UPS should now start its inspection of: internal functions, mains synchronization and inverter startup.
Then output power will be supplied via the outlets.
• During this inspection, the LCD will display “Ready on”. The LED shall light up when output power has com
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menced and the LCD will display “Line mode”.
• Switch on the loads.
Shutting down the UPS
• Shut down and turn off the loads.
• Push the
button on the front panel for three seconds. The alarm will sound and the UPS will shut down.
• The LCD will display UPS OFF for a few seconds.
• In emergency situations, the EPO located on the back of the unit should be used.
Button Operation
There are three operating buttons on the front panel.
1. ON / OFF BUTTON
a.
Push the ON / OFF BUTTON for at least 3 seconds to turn on the UPS
b. Push the ON / OFF BUTTON for at least 5 seconds to turn the UPS off
