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23
HMI Alarm Messages
Table 2. HMI Alarm Descriptions and Resolutions
Error
Description
Resolution
Drive Communication
The PLC has lost communication with
the VFD.
Press the reset switch and check that the Ethernet cable is
securely connected on both ends in the control cabinet.
Drive Fault
The VFD has had an error occur
preventing normal operation.
Refer to the Conveyor Belt screen in the engineering section.
Identify the faul
t code displayed, and refer to the VFD’s
instruction manual for further instruction.
Emergency Switch
Either one of the E-stops, or the
interlock switch has been tripped.
Reset the switch, then press the reset button.
Fan Error
The irradiator cooling fans are not
operating correctly.
Go to the lamp
’s
sub screen of the engineering section.
Determine which fan is producing an error and clear the error.
If the error persists, one of the cooling fans is not functioning
properly and may need replacement. Refer to the UV lamp
subsection in System Adjustments (pg. 15) for a listing of
nominal fan speeds.
Fan Low
The UV lamp power supply fans are
not operating correctly.
Power down the system and remove the lower back panel.
Check that the cooling fans are able to spin freely.
Ground Fault
The UV power supply is not properly
grounded.
Power down and tag out the machine. Ensure the power supply
ground is properly connected.
Interlock Switch Fault
The access door is/has been
removed.
Re-attach the access panel and press the reset button.
Lamp Open
The UV lamp is not connected.
Power down the system and follow the Bulb Replacement
Procedure. Ensure the lamp power cable and connections are
secure.
Lamp Short
The UV lamp is shorted.
Replace the lamp in accordance with the Bulb Replacement
Procedure.
Temp Alarm
The UV lamp power supply is
overheating.
Ensure there is adequate ventilation and the power supply
’s
cooling fans are not restricted.
TempTrip
The UV lamp temperature sensor has
malfunctioned.
Contact Dymax.
Timer Alarm
The UV lamp has reached its
expected life.
Replace the bulb. Instructions for bulb replacement can be
found on page 21.
Timer Reset
The UV lamp timer has been reset.
No action required.
