Word N+5 Bit 01: Origin Search Bit (X-Axis) - Omron C200H-MC221 Operation Manual

Interface Bit Specifics

6-5-18 Word n+5 Bit 01: Origin Search Bit (X-axis)

Signal
Timing Chart
Program Example 1
This bit is used to perform a manual origin search. The origin search begins
when the Origin Search Bit goes from OFF to ON (up-differentiation). Overrides
are ignored in manual origin searches.
If a reference origin offset is specified in the system parameters, the axis will be
moved that distance from the mechanical origin by PTP control after the
mechanical origin is detected. At this point, overrides are valid using the maxi-
mum high-speed feed rate, acceleration time, and deceleration time. The posi-
tion after the movement becomes the origin of the reference coordinate system.
This bit is ignored when the X-axis' Busy Flag (n+16 bit 01) is ON. The origin
search operation will be stopped if the Origin Search Bit is turned OFF while the
search is in progress. Keep this bit ON until the X-axis' No Origin Flag (n+16 bit
03) is turned OFF.
When the "Origin Search Method" machine parameter has been set to "Set ori-
gin at power ON" with the MC Support Software, that position will be the origin for
manual origin searches.
An Origin Return Operation will be performed for axes set for absolute operation.
The Origin Search Bits for the Y axes (bit 01 in word n+7) operate in the same
way.
The Origin Search Bit settings have the following functions.
Signal
↑ (OFF-to-ON) Starts the origin search.
↓ (ON-to-OFF) Stops the origin search if it is in progress.
Origin search Bit
(n+5 bit 01)
Axis operation
No Origin Flag
(n+16 bit 03)
Busy Flag
(n+16 bit 01)
The following example is for incremental operation.
Origin Search condition
n+16 03
No Origin Flag
n+11 03
R1 R2
Manual
Mode Flag
n+5 01
Origin Search BIt
Function
20 ms
min.
Origin search
DIFU(13)
DIFU(13)
n+16 02 n+11 00
Servo Lock Task
ON Flag Error
Flag
Section 6-5
20 ms
min.
Auxiliary
R1
Area Bit
Auxiliary
R2
Area Bit
OUT
n+5
01
(Starts the
origin
search.)
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