Installation
3-12
Part 1618871−01
2020 Nordson Corporation
Relay Board LEDs
LED Description State Function
1 Encoder
ON
(Flashing)
Conveyor moving
OFF
LED OFF or ON
with solid color
Conveyor not moving
2 Gun Power
ON Indicates proper power for the spray guns
OFF Improper power to the spray guns. Check
wiring.
3 +12 Vdc Power
ON 12 Vdc source is functioning properly.
OFF 12 Vdc source not functioning properly. Check
wiring, relay board, and power supply.
4 +24 Vdc Power
ON 24 Vdc source is functioning properly.
OFF 24 Vdc source not functioning properly. Check
wiring, relay board, and power supply.
5 Conveyor
ON Conveyor run signal present, or keyswitch is in
bypass mode.
OFF Conyeyor run signal not present. Check signal.
6 Lockout
ON Keyswitch is in ready position or bypass.
OFF In lockout mode.
7 Alarm
ON No faults. Normal system operation.
OFF Indicates fault.
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