Nordson PURBlue EC - No Material (Motor Does Not Rotate)

Troubleshooting
6-11
P/N 7135268B
E 2008 Nordson Corporation
PURBlue EC
No Material (Motor does not Rotate)
Problem Possible Cause Corrective Action
1. Melter not yet ready
for operation (heatup
phase)
− Wait until the melter has heated up
and the Ready LED is illuminated.
2. Motor not switched
on
No signal at external input or
operating parameter set to a
different control option
Refer to Appendix B for control
options
Pump key not pressed The pump key LED offers
information. Refer to section
Operation
3. Speed (rpm) not set − Set speed on potentiometer
4. Standby entered − Exit or wait until standby period has
expired
5. Motor overheated
Ambient temperature too high Decrease ambient temperature by
cooling or airing out
Fan cap dirty Clean
Pump blocked by foreign matter Replace pump
Pump operates too sluggish Replace pump
Material too cold Set temperature accordingly
6. Motor defective − Replace
7. Motor not supplied
with voltage
− Technical inspection
8. Motor controller fault − Switch melter off and on again with
main switch
Motor overheated See above.
Motor controller overheated Decrease ambient temperature by
cooling or airing out
Clean cooling section of motor
controller
Short circuit Check motor cable
Overload (pump blocked by
foreign matter, pump too sluggish,
material too cold)
Refer to 5.
9. Motor controller
defective
− Replace
10. Ready delay too short Check whether a value under
30 min. has been set
Set value to y 30 min