Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 19)

1.2
Intelligent CableUPS Layout
, continued
1.2.2 Inverter Module Overview
The removable inverter module provides uninterrupted power to the ferroresonant
transformer (via the batteries) during line failures. During line operation, the inverter
charges the batteries using a three-stage (BULK, ACCEPT and FLOAT
) charger.
Each inverter module and transformer module is labeled to indicate its voltage and
current rating. The power supply also carries a voltage and current rating label. It
is very important the inverter module is installed only in a power supply with the
same voltage and current rating. If the labels do not match, do not install the inverter
module. Each unit will bear a label (examples shown below) on the inverter module
and on the inside chassis floor.
Fig. 1-6, Inverter Module Voltage Rating Labels
Current 36V Inverter Modules bear this yellow label. This
label and the label located on the interior chassis floor must
match. However, inverter modules carrying this yellow label are
backward compatible with 36V power supplies manufactured
prior to September 2006, which bear yellow labels. Do not install
the inverter module if the voltages do not match.
36V
953-527-10-002 F
48VOLT
953-527-11-002 F
1350VA
48V
953-527-12-002 F
Current 48V inverter modules bear this two-color label. This label
and the label located on the interior chassis floor must match.
However, inverter modules carrying this blue/green label are
backward compatible with all 48V power supplies manufactured
prior to September 2006, which bear green labels.
Obsolete-style label for the 1350VA 48V inverter modules.
The current 1350VA 48V inverter module (manufactured after
September 2006) carries a green label. If your legacy power
supply carries this green voltage and current rating label, it is
compatible with the latest blue/green labeled inverter module.
19 017-805-B0-010 Rev. K2