Excelitas Technologies AC2110-365, Installation Reference Manual

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OmniCure® AC2 Series
UV Curing Solutions
http://www.excelitas.com/omnicure
Excelitas Canada Inc. 2015
All rights reserved
035-xxxxxR, rev.1
13
035-00589R Rev5
8 Troubleshooting
8.1 Symptoms and Possible Causes
Service to be completed by qualified Excelitas Technologies personnel only!
Always wear optical safety glasses while troubleshooting. Never put hands or
fingers in front of the lens. Serious personal injury may result.
Do not place any potentially combustible materials (e.g. paper, card, etc.) in
front of the LED Head. Risk of fire and damage to the UV LED Head may result.
If the system fails to power up:

Make sure the AC power cord is securely plugged into a functional AC outlet and into the AC inlet on
the power supply unit.

Make sure that the circuit breaker on the power supply unit is not tripped. If so, reset breaker.

Make sure all cable connections (power supply to UV LED Head) are secure.

Ensure that the power supply is switched on and the green LED indicator on the front panel is lit.
If the system powers up but experiences a thermal fault during operation:

Ensure UV Head is installed with adequate clearance around intake and exhaust ports.

Ensure intake air filter is not clogged or obstructed.

If filter is clogged, either clean with compressed air or replace with a new filter insert.
If the system powers up but does not emit UV:

Make sure the door lock electrical loopback on the PLC is installed properly.

Ensure that the voltage levels on pins 3, 5 and 8 of the PLC interface match the logic required to enable
the LEDs.

Check the visual indicator for signs of a fault.
If a fault condition has been detected:

Attempt to clear the fault by cycling power to the LED Head or by pressing the “Clear Fault” button on
the PLC 2000 controller.
If the system exhibits a fault condition with a slow-flashing red:

Power-cycle the UV Head to clear.
If the light intensity is too low:

Make sure the input voltage is at least 46V (input voltage to the Head for the purposes of powering the
head is typically 48V (46-50V DC)).

Clean the optical window of the UV LED Head as described in Section 9.3
, “Cleaning the LED Head”.

Verify that the intensity level of the UV LED Head is set to the correct level, using the PLC Controller.
If problems persist beyond these troubleshooting points, please contact Excelitas Technologies Service
Department (refer to
Section 12,
“Contact Information”).