DOSS Fault - Doss Fault - Disconnected (D-Series)

DOSS Fault - Doss Fault - Disconnected (D-Series)

The DOSS is an opto-electronic system that counts pulses in order to determine the position of the gate and the distance that it needs to travel to its respective Endstops.


Possible causes

• DOSS physically disconnected

• Poor connection on DOSS or controller side

• Faulty harness

• Faulty DOSS

• Faulty controller

 

Solutions

• Ensure that the DOSS is clipped firmly into its carrier and that the harness is plugged in on both the DOSS and controller side

• Check for bad connections

• Replace DOSS harness

• Replace DOSS unit

• Replace faulty controller


To reach the DOSS chip on a D5 EVO, you'll have to remove the cover of the motor. You'll find the DOSS positioned above the thumbwheel, directly in front of the red electronic motor.  For easy Identification, there is a warning sticker on the DOSS cylinder indicating "No oil allowed".   


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