106
Rev. 2.0
07/27/2023
MBDV Hardware Manual
7.8.2.15 Return-to-origin method 11: Negative return, look for the falling edge of the origin
sensor and Z pulse signal, and automatically reverse in case of negative limit
H
L
H
H
L
L
Home Switch Signal
Negative Limit Switch Signal
Movement Track
Z-Phase Signal
a) When starting to return, HOM-SW=0 and it is located on the positive side of the position of the
origin sensor, and starts to return at a high speed in the negative direction. After encountering the
rising edge of HOM-SW, Decelerate, reverse, and run at low speed in the forward direction, and
stop at the rst Z pulse after the falling edge of HOM-SW is encountered.
b) HOM-SW=0 when starting to return and it is on the negative side of the position of the origin
sensor , start the return at a high speed in the negative direction , after encountering the rising
edge of NOT , reduce Speed , reverse , and forward high-speed operation ; after encountering the
rising edge of HOM-SW , decelerate , reverse , and negatively run at low speed to the position
where HOM-SW is invalid, then reduce Stop at high speed , then run forward at low speed , and
stop at the rst Z pulse after encountering the falling edge of HOM-SW .
c) When starting to return, HOM-SW=1, start the return at a forward low speed, and stop at the rst
Z pulse after encountering the falling edge of HOM-SW.
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