Showa DS-6200, Operating Manual

Page: 49 / 150

5 SETTING OF FUNCTIONS
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Chapter
5
Level condition
(hold section setting; Level + Time or Level, or detection start condition; Ex Level)
Setting range: Passed, Passed HI, Passed LO
Hold point shift
In the "sample hold" and "inflection point hold", the sampling data is held as it is shifted back or
forth by the numerical value set under Sample Removal Value / Inflection Removal Value.
Setting range: － 999 - 999
How to set
■
Hold setting --- Relative (Maximum / Minimum / Difference) ---
If you select the relative maximum and relative minimum hold in the hold function setting, set the
relative maximum and relative minimum value detection parameters "relative minimum count" and
"relative magnification".
Set referring to the principle of operation only when the value cannot be held successfully with the
factory settings or when further adjustments are required.
Detection of relative values
The logic of detecting the relative values is given below.
First, when difference X between point A and point B
is larger than the minimum count, point A is judged to
be the relative maximum value and point B is judged to
be the relative minimum value.
After that, when the load exceeds difference X
multiplied by the relative magnification (1/4 to 4), A,
B, and the difference between A and B are held in
relative maximum hold, relative minimum hold, and
relative difference hold, respectively, at O, P, Q, etc.
If the minimum count is too small, when the waveform
includes noise as shown on the left-hand side, the noise
is regarded as the relative maximum value or relative
minimum value and a correct value may not be held. In
such a case, set the minimum count somewhat large.
- Passed: Detection starts when the indicated value passes the level set value.
- Passed HI: Detection starts when the indicated value passes the level set value in the direction from
smaller toward larger values.
- Passed LO: Detection starts when the indicated value passes the level set value in the direction from
larger toward smaller values.
The actual hold point
t
w
CAUTION
- This does not work for other
holds.
When the hold point shift is set at 8, the
data eight pieces before the actual hold
point is held.
When the hold point shift is set at +1,
the data one piece after the actual
hold point is held. However, it is not
held if the destination is outside the
set Section.
SET. Hold Setting Page 2
→ →
Work Setting
→
A
B
O
P
Q
2X
X
1.5X 3X
True Relative
True Relative
Relative
Relative
A
X
B
Relative
Relative Minimum
Maximum
Minimum
Maximum
Minimum
Maximum