Material Pressure Too Low - Nordson VersaBlue VBN 50 Manual

Material Pressure too Low

Problem
Gear pump is worn
Safety valve does not close
any more
Pressure control valve dirty
and thus clogged
Pressure control valve
defective
Pressure control valve set
incorrectly
Pneumatic safety valve
(option) pressurized with
too low pressure
Material Residue in Tank
Problem
Tank setpoint temperature
set too high
Material Hardens in Tank
Problem
Tank setpoint temperature
set too high
LED of Overflow Protection Evaluator
LED
Red (LED Full)
E 2008 Nordson Corporation
Possible Cause
−
−
−
−
−
−
Possible Cause
−
Material of low quality or not
appropriate for application
(temperature resistance poor)
Possible Cause
−
Flashing
VBN w/o Control System
Replace pump
Replace
Disassemble and clean or replace
Replace
Set to default
Increase pressure
Correct temperature setting
Consult material supplier
Correct temperature setting
Sensor break
Sensor plug disconnected
Operational ground not connected (Refer to section
Repair for correct connection).
Troubleshooting
Corrective Action
Corrective Action
Corrective Action
Fault
P/N 7146386A
6-5