Moons' MBDV Series - Page 109

109
Rev. 2.0
07/27/2023
MBDV Hardware Manual
7.8.2.18 Return to origin mode 14: Negative return, look for the falling edge of the origin
sensor and Z pulse signal, and automatically reverse when encountering the 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. It starts to return at a high speed in the negative direction, and when the HOM-
SW rises After the edge, decelerate, reverse, and run at low speed in the forward direction to
the position where HOM -SW is invalid, then decelerate to stop, and then run at low speed in the
negative direction.
The rst Z pulse after the falling edge of SW stops.
b) HOM-SW=0 when starting to return, and it is located on the negative side of the origin sensor
position, and starts to return at a high speed in negative direction, and encounters the rising
edge of NOT. Then, decelerate, reverse, and run at high speed in the forward direction; after
encountering the rising edge of HOM-SW, decelerate, reverse, and run at low speed in the
negative direction, and encounter the lower speed of HOM-SW. The rst Z pulse after the falling
edge stops.
c) When starting to return, HOM-SW=1, start the return at a negative low speed, and stop at the
rst Z pulse after encountering the falling edge of HOM-SW.