Fig. 15: Setting the reference point (end position CLOSED)
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5. Initial Operation of Control Unit Control 144 / 145 / 145 FU
5.4 Setting the reference point
5.4.1 Dynamic 121 - 128 and Dynamic 300 - 301
Dynamic 121 - 128:
Move the door by hand to CLOSE position.
Dynamic 300 - 301:
Mount boom in end-of-travel position CLOSE.
• Open transparent cover on door operator.
• Unlock the switching spindle by moving the red no-load lever (19) to the
front and by pushing the inner door link disk (20) in direction of spindle
(see fig. 15).
• Turn the knurled wheel (21) clockwise until the carriage (22) is approx. 5 mm
before the left chamfered end of the switching spindle (see fig. 15).
• Re-lock the door link disk and secure it by a hearable engaging of the no-load
lever.
• Now the door has to be opened fully by hand (Dynamic 121 - 128).
ca. 5 mm
U1
U2
9
U0
