Rice Lake Condec UMC600 - Manual (Page 8)

Installation and Wiring 5
2.5 VAC Conversion
The UMC600 can be converted from 115VAC to
230VAC. The following steps are necessary to
complete this conversion.
Before beginning, be sure to
disconnect the AC power source.
Failure to do so can result in injury
or death.
1. Disconnect power to the indicator. Loosen cord
grips and remove enclosure as described in
Section 2.2
2. See Section 2.6 for CPU board removal and
replacement instructions.
3. Remove the protective insulator panel from the
solder side of the CPU assembly.
4. Cut circuit traces between E7/E8 and E9/E10 as
indicated with a sharp instrument like a razor
blade or an x-acto knife. Refer to Figure 2-3.
Figure 2-3. Circuit Trace Setup
5. Add jumper, E8 to E9 using a properly insulated
wire with a minimum size of #22 AWG.
6. Replace the protective insulator panel.
7. Change the power cord.
8. Reassemble the unit, test, and label unit for
230VAC.
2.6 Board Removal
If you must remove the UMC600 CPU board, use the
following procedure:
1. Disconnect power to the indicator. Loosen cord
grips and remove enclosure as described in
Section 2.2
2. Unplug all connections to the CPU board noting
where they are connected.
3. Remove the four screws from the corners of the
CPU board.
4. Remove the CPU board from the enclosure.
To replace the CPU board, reverse the above procedure.
Be sure to reinstall tie wraps to secure all cables inside
the indicator enclosure. Replace enclosure and torque
screws to 10 in - lb (1.13 N-m).
Warning
E7 E8 E9 E10
Jumper E8 to E9
Cut between
E7 and E8 Cut between
E9 and E10
Circuit Side of CPU Board
Converting from 115V AC to 230V AC