Parker CDAS HL 050 - Page 30

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Medium Flow Compressed Air Dryers - IOMI.
Remote Alarm Connection - Dedicated Dewpoint Alarm
e CDAS HL / OFAS HL / FBP HL dryer controller includes the ability to connect a dedicated dewpoint alarm relay that will activate only
if a dewpoint alarm occurs. is function requires the connection of an additional relay (not supplied) and activation by a trained engineer
using the ADS service soware.
Once activated via the ADS service soware, the dewpoint alarm functionality is removed from the generic fault relay and assigned to the
dedicated dewpoint alarm output.
e connection to the control board is used to energise the additional alarm relay (not supplied) and is rated at 3-30W@24VDC
On the display screen, a blue box and background around the dewpoint icon and outlet dewpoint value indicates
when the dryer is operating within normal parameters and delivering a dewpoint less than or equal to the
dewpoint setpoint.
Should the outlet dewpoint of the dryer be higher than the dewpoint setpoint, a dewpoint alarm is activated.
is is identied by the normally blue background around the dewpoint icon changing to a yellow background.
With the dedicated dewpoint alarm relay tted and enabled, the general fault alarm relay icon will not be shown.
e dedicated dewpoint alarm relay will changed state (de-energised), the general fault alarm relay will not change
state (it will remain energised).