Siemens AT18 - 4 Terminology

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Operating Manual - Elevator Door Operation AT18
4 Terminology
Initial speed = reduced speed after recognition of mains activation in closing and opening direction
until normal operation.
Creep speed = reduced speed in the vicinity of the “OPEN” position of the elevator door (creep
distance).
Cutter speed = reduced speed in the vicinity of the “CLOSE” position of the elevator door (cutter
distance).
Creep distance = door movement area in the vicinity of the “OPEN” position.
Cutter distance = door movement area in the vicinity of the “CLOSE” position.