Unipulse TM700, Operation Manual

Page: 49 / 91

40
5 SETTING OF FUNCTIONS
40
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Chapter
5
Average hold
The average value of the sampling values over the specified section is calculated and updated to
perform comparison operation.
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.)
■
How to specify the hold detection section
All sections
By this method, the hold detection section is externally specified by the T/H signal. Detection starts
with the T/H signal ON to perform each hold operation. According to the ON/OFF state of the T/H
signal, detection and tracking are repeated. There is no fixed hold section.
Example) All sections peak 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).
Sensor
Indicated value
t
＋
T/H
H/E
Fixed
SECTION
OFF
ON
OFF
ON
OFF
ON
OFF
ON
t1 t2 t3
Detection Hold section
OFF
ON
HOLD
button
HOLD
status display
AVE
status display
ON
Blink ON
OFF ON OFF
OFF OFF
input value
HI/LO limit
judging output
Undetermind
section
Indicated value
t2
t3
Sensor input value
t
＋
T/H
H/E
t1 t2 t1
t3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
HOLD
status display
PEAK *
status display
ON
Blink Blink
OFF ON
OFF
OFF
OFF
OFF
OFF
HOLD
button
*The status display changes depending on the hold mode.
HI/LO limit
judging output
Detection
Hold section
Detection
Hold section
Undetermind
section (Note)
Undetermind
section (Note)