9 Program command
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73
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9.5.20.
MHOME
Name
Mechanical home seeking
Valid
mode
Direct input/program
MHOME (1 | 2)
Parameter Data
range
Default
Syntax
(1 | 2)
Axis
1 (operate axis 1), 2 (operate axis 2)
If this parameter is omitted, axis 1 will be
operated.
Function
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
mode by an SEN command, and the offset movement amount by an OFS command.
If the END input is enabled by an EEN command, the next step will be executed
when the END input turns on after the operation has ended.
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 2-sensor mode (constant-speed operation) or a 3-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
2-sensor and 3-sensor modes. In the 2-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.
When a home offset is set, the speed of mechanical home seeking will conform to the operating speed.
•
Example of operation sequence in 2-sensor mode
Between -LS and +LS
-LS
CW
CCW
-LS
+LS
CW
CCW
-LS
+LS
+LS
CW
CCW
-LS
+LS
CW
CCW
-LS
+LS
CW
CCW
-LS
+LS
CW
CCW
-LS
+LS
Starting position of
mechaninal home seeking
Starting direction of
mechaninal home seeking: CW
Starting direction of
mechaninal home seeking: CCW
indicates when home-offset travel has been set.
Содержание EMP400 Series
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