Unipulse DeviceNet F381A, Руководство по эксплуатации

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73
4 SETTINGS AND CALIBRATIONS
73
SETTINGS AND CAL
IBRATIONS
Chapter
4
4-12.
Judgment timing chart
Here, some example timing charts using the hold function and waveform comparison function are
given.
■
Example timing chart by the hold function
- External control
(only time or displacement (Reference; Front))
t1: Delay time between the instant when the Start input is turned ON and the instant when all
outputs but Run are turned OFF ... Approx. 5ms
t2: Delay time between the instant when the Start input is turned OFF and the instant when the
measurable section is started. It varies depending on the time of crossing the Start Load.
t3: Delay time between the instant when the measurement is stopped (the Stop input is turned
ON) and the instant when the Result output is turned ON ... Approx. 50ms (However, there
are differences between measurements.)
t4: Delay time between the instant when the Result output is turned ON and the instant when
the Complete output is turned ON ... Approx. 30ms
Load
Time or displacement
Hold Result
Start load
Reset operation
Stop input
OFF
ON
Start input
OFF
ON
Complete output OFF
ON
OK output
Hold Result
LO or HI output
Measurement section Calculating
Result output for
Output OFF
OK is output if
Result is not LO or HI.
Sct 1;
Sample
Sct 2;
Always
Sct 3;
Bottom
Sct 4;
Peak
Output
OFF
Result
output for
Result output
for Section 1 to 4
Result output for
Section 1 to 3
Hold input
OFF
ON
Hold Detection Detection Hold
Result Constant
Previously
held value
Hold
t4
by the Start input
t1
t2
t3
Section 1 to 2
Indicated
value
Sensor
input
value
judgment output
Constant
judgment
No result is
output
during
detection.
Result is
output
after
completion
of the
detection
section
(Section3).
No result is
output
during
detection.
Result is
output
after
completion
of the
detection
section
(Section4).
Section 1
Result of the
previous
measurement
Result of the
previous
measurement