Siemens SIDOOR AT40 Betriebsanleitung Seite 30

4 Terminology / abbreviations
Initial speed
Reduced speed in the opening and closing directions after power on until normal operation is detected.
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 CLOSED position of the elevator door (cutter distance).
Creep distance
Range of door travel in the vicinity of the OPEN position.
Cutter distance
Range of door travel in the vicinity of the CLOSED position.
Firmware
Software for the AT40 door controller
FE
Functional grounding
LED
Light emitting diode
PE
Protective ground
Elevator door drive AT40
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A2B00095270A-03, 01/2012