14
Andover Controls
Converting PS 120/240 AC 50-U Into an Auxiliary Supply
The UPS version of the 120/240 AC power supply includes two status signals that
are meant for use by a CPU module. When connecting directly to an I/O module you
want to eliminate these signals.
To disable the two status signals from connecting to the I/O modules two jumper
components must be removed from the power supply. In order to access these
components you must remove the plastic cover from the case.
1
Press both cover removal tabs inward simultaneously:
2
Locate the two jumper components using the diagram below:
3
Carefully snip (cut) the wire leads of each of the two components. Be sure to
snip only the leads for these components. Other components in close
proximity to these are important to the operation of the supply.
4
Replace the cover.
Press These Tabs
Pull Cover Upward
with Tabs Depressed
J2
J3
J2
J3
Remove
Components:
J2 & J3
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