Showa DS-6200, Operating Manual

Page: 54 / 150

5 SETTING OF FUNCTIONS
53
SETTING OF FUNCTIONS
Chapter
5
Peak-to-Peak (P-P) hold
The difference value between the peak and valley over the specified section is held.
The section is specified by the setting of “all section”, “external signal”, “external time”, or
“level+time”.
(Example) All section Peak-to-Peak (P-P) hold
t1: A delay time between the instant
when the T/H signal is inputted and the
instant when the indicated value is held
1.0ms (max.)
t2: A delay time between the instant
when the T/H signal is released and the
instant when the indicated value returns
to tracking
1.0ms (max.)
t3: A minimum reset signal width
required for releasing the hold
1.0ms (min.)
Note: During the undetermined section, the
judging output varies with fluctuations in the
input waveform. However, the H/E output
remains on during the undetermined section.
Read the judging result when the indicated
value becomes stable (immediately before the
T/H signal rises).
Average hold
The average value of the sampling values over the specified section is calculated and updated to
perform comparison operation. The section is specified by the setting of “all section”, “external
signal”, “external time”, or “level+time”.
(Example) Externally specified section average value hold
t1:
A delay time between the instant
when the SECTION signal is inputted
and the instant when detection
is
performed.
1.0ms (max.)
t2: A delay time between the instant
when the SECTION signal is released
and the instant when the value to be
held is determined
1.0mS (MAX.)
t3:
A minimum reset signal width
required for releasing the hold
1.0ms (min.)
Indicated Value
Sensor Input Value
Detection ・ Hold Section
Undetermind
t
＋
T/H
HI-LO Limit
Judging Output
H/E
t2
t1
t3
Standard Line
(Hold Section Only)
Indicated Value ＝ 0
Indicated Value=0
OFF
ON
OFF
ON
OFF
ON
HOLD
OFF
ON
Button
HOLD
Status Display
P-P
Status Display
ON
Blink
OFF
OFF
OFF
OFF
section (Note)
Real Time
Indicated Value
t
＋
T/H
H/E
Decide
SECTION
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Undetermind
t1 t2 t3
Detection Hold Section
OFF
ON
HOLD
Button
HOLD
Status Display
AVE
Status Display
ON
Blink ON
OFF ON OFF
OFF OFF
values
HI-LO
Judging
Limit
Output
Section
The detection section is limited by the maximum average value detection
time set according to the “Average sample number”.
For details, see the section on "Average sample number"on page 51.