8-72
Drive Functions
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
8.6
Detecting the Marker Position
Brief Description
The "get marker position" function, that is activated via the respective
command, can be used for:
•
checking the correct detection of the reference mark of an incremental
measuring system
- or -
•
determining the position of the reference mark in case the homing
procedure is carried out by the control master. In this case, the
coordinate system is switched in the master with the position
information of the reference mark.
Note:
A possibly available home switch is not evaluated with this
function!
Pertinent Parameters
•
S-0-0173, Marker position A
•
P-0-0014, C1400 Command Get marker position
Pertinent Diagnostic Message
•
C1400 Command Get marker position
Functional Description
After the start of
P-0-0014, C1400 Command Get marker position
the
following actions are carried out:
•
The diagnostic message
C1400 Command Get marker position
is
generated.
•
If an incremental measuring system was selected, the search for
reference marks is activated and the drive waits for reaching the next
reference mark.
•
When a reference mark is detected (i.e. the drive passes the position
of a reference mark) the actual position value of this mark is stored in
parameter
S-0-0173, Marker position A
and then the command
execution is signaled to be completed.
Note:
The drive does not generate any command value. The
operating mode active at the start of the command remains
unchanged. In order to pass the reference mark the control
master has to preset such command values (e.g. by means of
jogging) that lead to a movement in direction of the reference
mark to be detected.
Base package
of all variants with
closed-loop
characteristic
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
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