Nordson Sure Coat - Gun Driver Cards Information

Troubleshooting
A 6-6
Part 331235C
E 2003 Nordson Corporation
Part A: System Overview
Gun Driver Cards
Switches
Refer to Table A 6-9 and see Figure A 6-3.
Table A 6-9 Gun Driver Card Reset Switches
Item Switch Function
1 Reset Restarts the microprocessor if gun operation becomes erratic
2 Service Prepares the card for software installation
LEDs
Refer to Table A 6-10 and see Figure A 6-3.
Table A 6-10 Gun Driver Card LEDs
Item Color Function Meaning Corrective Action
3 Red Alarm Lights when an error is detected
(communication, neuron, RAM, or
hardware fault)
Enter diagnostic mode and
clear the error code.
4 Yellow Service Short on pulse, then off
continuous: Normal at startup.
No action necessary.
Lit continuously: Bad node
hardware.
Replace the gun driver card.
Flashing once for approximately
two seconds: Power up/reset
when no node applications.
Wait for the gun driver card to
initialize. If it does not
initialize, replace the card.
Repeated short on pulses:
Watchdog timer resets occurring.
Replace the gun driver card.
Pulsing on/off at 1 second
intervals: Node is not configured.
Replace the gun driver card.
5 Green Status Flashing (heartbeat) when
communicating properly with the
master or option card.
No action necessary.
6 Green Power Lights when power (5 Volts) is
applied to the board.
No action necessary.
7 Yellow Foldback
A
Lights when the over-current
protection circuit has been
triggered because of high current
draw from the gun drive circuitry
on odd-numbered gun.
Check the gun and cable for
shorts.
8 Yellow Foldback
B
Lights when the over-current
protection circuit has been
triggered because of high current
draw from the gun drive circuitry
on even-numbered gun.
Check the gun and cable for
shorts.