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3.3 Setting the reference point
3.3 1 Dynamic 121 - 128 and Dynamic 300
Dynamic 121-128: Close the door manually.
Dynamic 300: Install boom in CLOSED position.Remove the operator's
transparent cover.Release the switching spindle by shifting the red no-load
lever (19) forward and pressing the wheel's inner carrier plate (20) towards the
spindle (see fig. D/1). Turn the knurled wheel (21) clockwise until the switching
carriage (22) is located approx. 5 mm in front of the left, bevelled collar of the
switching spindle (see fig. D/1).
Relatch the carrier plate and make secure by re-engaging the no-load lever
(makes an audible click on engaging), as shown in fig. D/2.
The door must now be opened fully by hand.
By means of the smaller knurled wheel (23), now turn the adjusting spindle,
until the switching carriage (22) actuates the reference point switch (24)
(see fig. D/2). Now rotate the smaller knurled wheel (23) approx. 1 - 2 turns
anti-clockwise.
3. Initial operation of the Control 120 - 123 control units
ca. 5 mm
