Maintenance and Repair
5-2
Part 1061253B
E 2006 Nordson Corporation
Replacement Procedures
Preparation
1. Turn off the UV system from the process
equipment controller or at the UV panel.
2. Allow the lamphead fan to complete its cooling
cycle. If this has been prevented by premature
isolation of the control cabinet, always allow
sufficient time for the bulb to cool before
proceeding.
3. Turn off the main electrical disconnect. Follow
all relevant OSHA established lockout
procedures.
Main Control Board
1. Remove the 10 M5 screws fastening the top
cover of the power supply. Remove the top
cover.
2. Locate the main control board on the inner wall
of the power supply and and disconnect all of
its connectors.
3. Using a #1 Phillips screwdriver, remove the six
M3 screws securing the main control board.
4. Carefully pull the main control board from the
power supply.
5. Using the old control board or the Installation
section as a guide, configure the new main
control board with the appropriate SW1 and
SW3 dip switch settings, power supply address
switch, remote analog jumper and digital/analog
light detector jumper.
6. Place the new control board in the proper
position with the board’s part number located at
the top and secure the board the the power
supply’s inner wall with six M3 screws.
7. Secure the power supply’s top panel with the 10
M5 screws.
8. Connect all the main control board connectors
removed in step 2 of this procedure.
9. Restore power to the power supply and operate
according to the procedures set up in this
manual.
