Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 50)

3.3 AC Output Voltage Reconfiguration
The output voltage on many Intelligent CableUPS models (-906HP*, -910, -915, -918HP,
-918HP, -922, -922HP, -924HP, -1350) can be easily reconfigured to provide an output voltage
of 87, 75 or 63Vac, by moving a conveniently located OUTPUT TAP jumper and readjusting
the DIP Switches on the PDB.
*63V or 87V only for the 906HP model.
Tools Required:
• #2 Phillips head screwdriver
• Small flat-blade screwdriver
Output Voltage Reconfiguration Procedure:
1. Shut down the power supply, verify all power is removed and utility power is off and
battery power is safely secured (or not installed) in the enclosure assembly. Remove all
connections and cables from the power supply.
2.
Remove the five front panel screws and lift the front panel up and away from the chassis.
The front handle and output fuse remain in place.
3.
Locate the transformer module’s output connectors above the Power Distribution Board.
Move the single black connector to the desired output voltage connector. Connectors are
both labeled and color coded for easy identification (see Figs. 3-9, 3-10): Blue = 48Vac,
Black = 87Vac (89Vac for HV model); White = 75Vac; and Red = 63Vac.
Fig. 3-10, Transformer Output Tap Connector for
other CableUPS models
Only authorized personnel should reconfigure output voltage on the XM2 power supplies.
ATTENTION:
Before proceeding, remove all power from the power supply. Unplug the power
supply from the AC power source, remove all front panel connections (i.e., N+1)
and disconnect the battery connector. Failure to do so can expose the technician to
potentially lethal voltages.
4.
Reconfigure the PDB as required. Set the Output Voltage switches (SW1-2 and SW1-3)
to reflect the same rating as the currently selected voltage on the Output Tap connector.
Set the power rating switches (SW1-4 and SW1-5) and the output current switch (SW1-1)
to the required setting.
5. Replace the front panel.
6. Install the unit into the enclosure as outlined in Section
2.1 (Installation Procedure).
NOTE:
You must change the auto transformer fan input when the output voltage changes. In some cases
the power rating and the output current settings may also need to be changed.
Fig. 3-9, XM2-615A Transformer Output
Tap Connector shown in
default setting (63Vac)
NOTE:
For the XM2-615A power supply, the OUTPUT TAP jumper enables the output voltage to be changed
from 63Vac (default) to 48Vac only.
WARNING!
48 Vac
63 Vac
Black Red
Blue
To front panel AC
output connectors
63 Vac
75 Vac
Black
White
Red
87/89 Vac
Black
To front panel AC
output connectors
50 017-805-B0-010 Rev. K2