West Control Solutions KS98-1 - Manual (Page 211)

Search run
In the following cases, a search run is carried out:
w Start via operation
w Start via interface
w Start with search = 1
w Program start after Reset
w After short power failure with PowerUp = Cont.seg. or Cont.time
Search run in program segment
When starting the search run, Wp is set to the XVal value, from where it runs towards the segment end value with
actual gradient ( TPrio = Grad.prio) or in the actual segment rest time (TPrio = Time prio).
If the search value is out of the actual segment with TPrio = Grad.prio, the program is continued at the seg-
ment point next to the search value (actual segment start / end). With segment start value = segment end value (seg -
ment without gradient; holding time), the program is continued at the segment start.
With a step segment (including the APROGD segments with WMode = 1 (step)), the relevant target setpoint is al-
ways used from the segment start.
Search run in program section
Apart from the search run in the actual segment as described above, searching over several segments or search run
switch-off are possible. The various search run functions can be selected via parameter SMode:
• 0 = search run in segment
• 1 = search run in program section
• 2 = no search run
Searching is limited to a section of several segments which have the same polarity sign as their gradient. Hereby, a
hold segment is neutral
Þ no change of polarity sign.
9499-040-82711 Programmer
APROG ( analog programmer (No. 24)) / APROGD ( APROG data (No. 25))
III-211
t
x
w
XVal
Wp
Start
search run
Fail
Search run for TPrio = Zeit Prio
t
x
w
XVal
Wp
Start
search run
Fail
Search run for TPrio = Grad.Prio