Troubleshooting
6-4
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Alarm Number, Alarm Text and Optional Light Tower
(contd.)
Light tower colors
Alarm no. Status Green Yellow Red
25 Channel: Sensor input open or sensor broken
(Sensor = temperature sensor)
Hose/gun connected?
26 Channel: Sensor short-circuit
(Sensor = temperature sensor)
31 Motor or controller overtemperature
Ambient temperature too high
Fan cap / cooling section dirty
Pump blocked by foreign matter
Pump operates too sluggish
Material too cold
Check motor controller wiring and output voltage
40 Overpressure fault: Motor#, sensor#
Refer to Troubleshooting Tables in this section.
Light tower colors
Alarm no. Status Green Yellow Red
Status
display
Warning or fault (operator can choose)
When a Warning is issued, the operator must decide whether the situation is critical for the
application and action is required.
43 Safety valve open: Motor#
A Fault switches off the motors. As soon as the fault is corrected, the motor startup
protection is automatically activated.
43 Safety valve open: Motor#
Light tower colors
Alarm no. Status Green Yellow Red
Status
display
Shutdown
Shutdown turns the melter off (main contactor opens).
1 Main contactor / thermostat fault
Main contactor defective or open
Check wiring of main contactor and checkback
contact
Transformer temperature exceeded
Temperature exceeded
Continued...
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