Product manual

Maintenance and Repair
6-2
Part 1105120-01
E 2013 Nordson Corporation
System Controller Repair Procedures
Preparation
1. Turn off the UV system from the process equipment controller or at the
system controller panel.
2. Allow the lamphead fan to complete its cooling cycle before shutting off
power to the controller.
NOTE: Always shut down the system before shutting off controller power.
Shutting off the system while the UV lamp is on could result in equipment
damage.
3. Turn off the main electrical disconnect. Follow all relevant OSHA
established lockout procedures or local codes as appropriate.
4. Allow time for all capacitors to bleed off their stored energy before
removing the system controller cover.
CAUTION: The integrated circuits on the system controller printed circuit
boards can be damaged by small electrostatic charges. Always wear an
approved grounding strap when handling circuit boards.
Fuses
See Figures 6-1 and 6-2 to identify the replaceable fuses in the system
controller. Use an appropriate tool to remove the fuses. Replace them with
identical fuses. Refer to the Section 7, Parts for ordering information.
S F1: Blower, 3A, slow blow, 250V
S F2: Blower, 3A, slow blow, 250V
S F3: Board Power, 160mA, slow blow, 250V
S F4: Filament Transformers, 2A, slow blow, 250V