Moog MSD Servo Drive Series

 Thefirstzeropulseafterarisingedgefromthereferencemarkisthezero
point/homingpoint.
Fig. 8.50: Negative (left) hardware limit switch and zero pulse
MOOG
ID
No.: CB40859-001 Date: 02/2018
MSD Servo Drive- Device Help
197
8 Motion profile
8.5.10Methods(7)to(10):
8.5.10.1Method(7):Referencemark,zeropulseandpositive
limitswitch
 Thestartmovementisinthedirectionofthepositive,righthardwarelimit
switch.Bothitandthereferencemarkareinactive.
 Thedirectionofmovementreversesafteranactivereferencemark.Thezero
pointcorrespondstothefirstzeropulseafterthefallingedge.
 Thestartmovementisinthedirectionofthenegative,lefthardwarelimit
switch.Thehomingpointissetatthefirstzeropulseafterafallingedgefrom
thereferencemark.
 Thefirstzeropulseafterpassingthereferencemarkisthezeropoint.
Fig. 8.51: Reference mark, zero pulse and positive limit switch
8.5.10.2Method(8):
 Thezeropointisthefirstzeropulseifthereferencemarkisactive.
 Thedirectionofmovementreversesafterafallingedgefromthereference
mark.Thezeropointcorrespondstothefirstzeropulseafterarisingedge
fromthereferencemark.
 Thedirectionofmovementreverseswhenthereferencemarkhasbeen
passed.Thezeropointcorrespondstothefirstzeropulseafterarisingedge.