MPH-02, MPB-02, MPD-02
Operating Modes
7-31
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Position Target Interpreter
The acceptance and internal processing of
S-0-0282, Positioning
command value
to a value entered in parameter
S-0-0430, Effective
target position
is controlled via
S-0-0346, Positioning control word
.
At each edge of bit 0 (toggle bit) of S-0-0346 the content of
S-0-0282,
Positioning command value
, depending on bit 3 of S-0-0346, is
•
copied to
parameter S-0-0430
(when bit 3 = 0
→
absolute
target position
)
- or -
•
added
to the value of S-0-0430
(when bit 3 = 1
→
travel distance
).
Note:
If a positioning process is aborted by switching bits 1 and 2 of
S-0-0346 from status "00" to "01", "10" or "11", a repeated
edge reversal has to take place in bit 0 in order to start a new
positioning process! A residual path possibly present is
cleared, i.e. the status of bit 4 of S-0-0346 is automatically
interpreted as "1" during the next positioning process.
The drive acknowledges the acceptance of the positioning command
value via
S-0-0419, Positioning command acknowledge
(bit 0). This
allows realizing a data handshake for monitoring the command value
acceptance between master and drive.
Note:
The active target position is displayed in parameter
S-0-0430,
Effective target position
.
S-0-0282, Position-
ing command value
S-0-0346,
Positioning control word
S-0-0419,
Positioning command acknowledge
t accept
(k)
(k+1)
(
k+2)
(k+3)
(k)
(k+1)
(k+2)
(k+3)
(k)
(k+1)
(k+2)
(k+3)
(k)
(k+1)
(k+2)
(k+3)
accepted positioning
command value
Fig. 7-19:
Positioning command value acceptance and acknowledgment
Accepting and Acknowledging
the Command Value
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
