Troubleshooting
6-19
E
1996 Nordson Corporation
All rights reserved
107 041A
Issued 1/96
Manual 12-28
Problem
Possible Cause
Corrective Action
5. Cover air valve does not
energize
Bad I/O card
Enter
RAISE COVER SCREEN Menu.
Verify that I/O card LED O2 is on. If
LED O2 is not on, replace I/O card.
Air leaks in tubing
Check for air leaks in tubing and repair
as necessary.
Bad cover air solenoid or SSR card
See Figure 7-4. If I/O card LED O2 is
on, verify that air solenoid’s LED is on.
If LED is off, verify that +12 VDC is
present across the (+) and (–) pins on
air solenoid. If voltage is present,
replace air solenoid.
If voltage is not present, turn off oven.
Remove dust cover on SSR card J8 and
turn on oven. Access the
RAISE
COVER menu.
Use a voltmeter to check for +12 VDC
between SSR card connector J8 pins 17
(gnd) and 16. If voltage is not present,
replace SSR card.
Install connector cover on J8.
6. Oven over temperature
Bad I/O card
Verify that LED I2 on I/O card is on. If
LED is off, replace I/O card.
Bad thermostats, reset switch PB204,
or wiring
See Figure 6-2. If LED I2 on I/O board
is on, press reset switch PB204 on
E-stop panel. Verify that CR237 latches.
If CR237 does not latch, turn off oven.
Use an ohmmeter to verify that CR237
pin 9 and pin 14 are shorted together.
If an open is found, one or more of the
oven thermostats has opened or is
defective. Replace thermostats as
necessary.
If a short is found, check for an open in
wires 2065 and 2066. Repair as
necessary. Verify that push button
switch is working properly. Replace
switch, if necessary.
Input/ Output Problems
(contd)
Summary of Contents for 107 041A
Page 1: ...Select Cure 100 Inch IR Oven Part 107 041A NORDSON CORPORATION D AMHERST OHIO D USA ...
Page 9: ...E 1995 Nordson Corporation All rights reserved Issued 11 95 12 28s1 Section 1 Safety ...
Page 10: ...Safety 1 0 E 1995 Nordson Corporation All rights reserved Issued 11 95 12 28s1 ...
Page 148: ...Parts 7 0 E 1996 Nordson Corporation All rights reserved 107 041A Issued 1 96 Manual 12 28 ...