Fig. 8.46: Positive limit switch and zero pulse
MOOG
ID
No.:
CB40859-001
Date:
02/2018
MSD Servo Drive - Device Help
195
8 Motion profile
8.5.8 Methods (3) and (4): Positive reference mark and
zero pulse
8.5.8.1 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 mark is inactive.
The direction of movement reverses on an active edge from the reference
mark.
The first zero pulse after a falling edge from the reference mark is the zero
point/homing point.
Fig. 8.47: Start condition for positive limit switch
8.5.8.2 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 mark is inactive.
The direction of movement reverses on an active edge from the reference
mark.
The first zero pulse after a falling edge from the reference mark is the zero
point/homing point.
