American Power Conversion S20BLK Power Supply User Manual


 
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Vacuum Fluorescent Display
The vacuum fluorescent display (VFD) conveys unit and power status
information. It is also used to display information when changing unit
settings.
Note: The VFD and light emitting diodes (LEDs) can be dimmed or
turned off independently of each other via the front control
panel SETUP push button.
Up Arrow Push Button
This button is used to increase or turn on parameters for various
user-selectable settings such as: Audible Alarms, Sensitivity,
Display Dimmer, LED Dimmer, Go To Bat If, Outlet 1 & 2 Delay
(in seconds), Low Bat Warning, and so on.
LOW BATTERY Status Indicator
When this (orange) indicator is lit it indicates the battery pack charge level
is low. When this indicator turns on it indicates that there is minimum,
time remaining. The purpose of this warning is to allow time to shut off
power to the equipment before the battery pack is fully discharged. The
user can set the value (from 2 to 26 minutes). When the indicator is lit,
leave the unit plugged in to allow batteries to recharge.
Note: The unit does not have to be powered on for batteries to
recharge.
LINE OK Status Indicator
When this indicator is lit, it indicates the input voltage from the utility is
within the acceptable range (92V to 142V). If it is not lit, the input voltage
from the utility is outside the acceptable range, and it will go into boost
mode or trim mode to compensate for the (low or high) incoming AC line
voltage.
FILTERING Status Indicator
When this indicator is lit, it notifies the user that the electromagnetic
interference and radio frequency interference (EMI and RFI) noise
reduction circuit is active.
OVERLOAD Status Indicator
When this (red) indicator is lit the unit is overloaded; unplug the devices
connected to the unit one at a time until the indicator is no longer lit.
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