Mhome - Vexta EMP400 Series Operating Manual

8 Program command

MHOME

Name
Valid mode
Syntax
Function
Request
About mechanical home seeking
Mechanical home seeking is an operation that automatically detects the sensor located at the reference
point for positioning operations (i.e., mechanical home position).
Home detection can be done either by a two-sensor mode (constant-speed operation) or a three-
sensor mode (high-speed operation). The initial direction of home detection will be determined by
the rotational direction.
Operation differs, depending on the initial direction of home detection and the current position for
both two-sensor and three-sensor modes. In the two-sensor mode, rectangular operation will be
performed at the starting speed.
Home position can be detected with higher precision when timing signals and slit signals are used.
l
2-sensor mode
Starting position of
mechaninal home seeking
-LS
+LS
Between -LS and +LS
8-30
Mechanical home seeking
Direct input/program
MHOME (1 | 2)
Parameter
(1 | 2) Axis
Executes mechanical home seeking
The starting speed, operating speed and acceleration/deceleration rate are to be set prior to
this command.
Other settings that must be performed in advance are TIM input and SLIT input by a TIM
command, initial home detection direction by an H command, home detection method by an
SEN command, and the offset movement amount by an OFS command.
-
Starting direction of mechaninal home seeking: CW Starting direction of mechaninal home seeking: CCW
-LS
CW
CCW
-LS
CW
CCW
-LS
CW
CCW
Data range
1 (operate axis 1), 2 (operate axis 2)
∗If this parameter is omitted, axis 1 will be
operated.
indicates when home-offset travel has been set.
+LS -LS
CW
CCW
+LS -LS
CW
CCW
+LS -LS
CW
CCW
Default
+LS
+LS
+LS