Talkaphone ETP-UPS Back-up Power Supply - Manual (Page 4)

Back-UPS® RS Installation and Operation 4
Unit sensitivity
Adjust the sensitivity of the UPS to control when it will switch to battery power; the higher the sensitivity, the more
often the unit will switch to battery power.
1.Ensure the unit is connected to utility power, but is OFF.
2.Press and hold the P OWER button for six seconds. The L OAD C APACITY bar will flash on and off, indicating that the
unit is in programming mode.
3.Press P OWER again to rotate through the menu options. Stop at selected sensitivity. The unit will beep to confirm
the selection.
Warnings and System Faults
Warnings
Press D ISPLAY to scroll through the display screens.
System Faults
The unit will display the fault messages. Contact APC Technical Support for additional support.
Low sensitivity Medium sensitivity High sensitivity
78-144 Vac 88-141 Vac 88-137 Vac
Input voltage is extremely low or
high. (Not recommended for
computer loads.) The Back-UPS frequently switches to
battery power. The connected equipment is
sensitive to voltage fluctuations.
Warning 1 ON LINE overload condition,
indicated by the illuminated ON
LINE icon, and the flashing
overload icon. Warning 3 In ON LINE mode, and there is a
bad battery, indicated by the
flashing icon.
Warning 2 Backup battery (ON BATT)
overload condition. This is
indicated by the flashing overload
icon. Warning 4 The battery charge is low, and
the Battery Charge indicator bar
is flashing.
• F01 - On-Battery Overload
• F02 - On-Battery Output Short
• F03 - On-Battery Xcap Overload
• F04 - Clamp Short
• F05 - Charge Fault
• F06 - Relay Welding
• F07 - Temperature
• F08 - Fan Fault
• F09 - Internal Fault
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