Nordson EFD PICO Touch User Manual

PICO Toµch Controller
45www.nordsonefd.com info@nordsonefd.com 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.
Problem Possible Cause Corrective Action
System Alarm: Pulse Time
Adjusted
System running in remote mode faster
than programmed parameters
If running the system in the external mode:
• Verify that the length of the initiate signal is greater
than the programmed RAMP > OPEN prole time.
• Verify that the CYCLE time is greater than the
programmed RAMP > OPEN / CLOSE prole
times.
PULSE time exceeds operating limits The PULSE time is less than the RAMP > OPEN
prole time. Correct the PULSE setting.
The programmed RAMP > OPEN prole time is
greater than the PULSE time. Correct the RAMP >
OPEN prole time.
CYCLE time exceeds operating limits The CYCLE time entered is less than the
programmed RAMP > OPEN and CLOSE times
combined. Correct the CYCLE setting.
Prole settings (RAMP > OPEN / CLOSE
times) incorrectly programmed
The programmed RAMP > OPEN / CLOSE prole
times are less than the PULSE / CYCLE times.
Correct the RAMP > OPEN / CLOSE prole times.
System Alarm: Driver Shut
Off
System running in remote mode faster
than programmed parameters
If running the system in the external mode:
• Verify that the length of the initiate signal is greater
than the programmed RAMP > OPEN prole time.
• Verify that the CYCLE time is greater than the
programmed RAMP > OPEN / CLOSE prole
times.
• Verify that the signal is absolutely a clean, bounce-
free signal.
System (valve) running faster than 1000 Hz Reduce the operating frequency of the valve.
If a Driver Shut Off alarm continues to occur,
contact Nordson EFD
Damaged valve Replace the valve.
System Alarm: Valve
Communications Error
Loose or damaged cable / connection Verify that both valve input cables are connected.
Check the integrity of the cables and connections.
Damaged valve Replace the valve.
System Alarm: Heater
Fault
Failed heater or shorted RTD in the valve Switch off the controller and wait 5 seconds for the
valve to fully discharge, then switch on the controller.
If a system restart does not correct the problem,
refer to the troubleshooting section of the valve
manual.
If a Heater Fault alarm continues to occur, contact
Nordson EFD.
Troubleshooting (continued)

Nordson EFD PICO Touch Specifications

General

Brand	Nordson EFD
Model	PICO Touch
Category	Controller
Language	English