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Homing methods 3 and 4: Positive reference cam and zero pulse

Method 3: Start movement in direction of positive (right) hardware limit switch

• Start movement in direction of positive (right) hardware limit switch; at this time the reference cam is inactive.
• The direction of movement reverses on an active reference cam edge.
• First zero pulse after falling cam edge corresponds to zero/reference point.

Bild: Start condition for positive limit switch

Method 4: Start movement in direction of negative (left) hardware limit switch

• Start movement in direction of negative (left) hardware limit switch; at this time the reference cam is inactive.
• The direction of movement reverses on an active reference cam edge.
• First zero pulse after falling cam edge corresponds to zero/reference point.
  

Bild: Start condition for negative limit switch