Operator’s Guide for Rugged-UPS
TM
1252 Series
91-0120 Rev. B 20
© Acumentrics Corporation 2007-2008
Start-Up
Normal Start-up is starting with external AC and /or DC Power available to the UPS.
•
Verify the UPS is properly connected and that external AC and/or DC power is applied to the
UPS.
•
Verify the ground cable is attached.
•
Turn the AC Circuit Breaker switch to ON.
•
Hold the ON/OFF switch in the ON position for up to 5 seconds and then release the switch.
NOTE: If the electronics (e.g. capacitors) are fully discharged, failure to follow this step will
create a false failure.
•
After 10 seconds has elapsed, verify the following indicators illuminate:
•
Battery Status indicators are illuminated identifying a battery is present and appropriate charge
status when the device is operating on battery only.
•
AC Line indicator will illuminate when AC source is present.
•
DC Line indicator will illuminate when DC source is present.
•
Load indicators are illuminated.
Start-up on Internal Battery Pack (cold starting): when NO External power is available, the UPS can be
started using its internal battery pack. If the battery pack is fully charged, the UPS will operate up to 4
minutes at full load typical.
•
Hold the ON/OFF switch in the ON position for approximately 1 – 5 seconds and then release the
switch.
•
To prolong the battery charge, turn on only those loads which are absolutely necessary.
•
The “On Internal DC” indicator will be illuminated. Monitor the battery status via the Battery
Status indicators. Indicators identify the present capacity of the battery pack and the audible
alarm beeps twice every fifteen (15) seconds. As the charge on the battery pack depletes, the
battery status indicators will extinguish. An audible alarm will begin to sound every second with
the second to last indicator blinking and will continue until the last indicator is blinking indicating
the battery pack is nearly depleted and low-battery shutdown is imminent.
NOTE: To minimize the risk of arching on the battery connectors please be sure when inserting
or removing the battery pack that the unit has AC input connected.
NOTE:
The battery indicators identify the charge status of the battery when operating on
battery ONLY. The battery capacity diminishes over time.
Extended Run
Modules
The Rugged-UPS
TM
1252 has optional extended run capability, using either the ACG1252XRBP (2U
high) or the ACG1UBP (1U high). Both modules are shipped with an extended run battery cable,
appropriate for the model being used.
There are two versions of the
ACG1UBP
. Both have an internal fuse. The connector pins are not
energized until connected to the Rugged-UPS
TM
1252. The UPS cannot “cold start” with only the 1U
Extended Run Battery Pack – the UPS’s internal battery pack or AC input power / optional DC input
power must be present for added safety. The LED Panel Indicator is illuminated when the unit is
charging / discharging, or when in stand-by mode.
