Unipulse F805AT-BC, Руководство по эксплуатации

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8.INTERFACE
131
8-4-12. Pulse input entry procedure
①
Select “NORMAL MODE A”, “NORMAL MODE B”, “NORMAL A SLOW”,
“PHASE MEASURE”, “ANA. NORMAL A”, or “ANA. A SLOW” in [SPEED
ENTRY SELECT] field. (Two “ANA. NORMAL A” and “ANA. A SLOW” can be
set only at time equipped with the ANA option.) If you select except “PHASE
MEASURE”, only the up-counter functions is applied and digital filter (moving
average for 1 second) is also applied. If you select “PHASE MEASURE”, the
counter functions in the fashion described in the following figure.
②
If you have selected “PHASE MEASURE” into [SPEED ENTRY SELECT], enter a
value to [PULSE COUNT/ROTATION].
③
Enter a value to [BELT LENGTH]
④
Enter a value to [SPEED INPUT COUNT]
A “NORMAL MODE A”, “NORMAL A SLOW”, “ANA. NORMAL A”, and “ANA.
A SLOW” are modes measuring pulse frequency of A phase, but processing contents
are different as follows. Please use “NORMAL A SLOW” and “ANA. A SLOW” when
the number of input pulses is below 100 [PULSE/s].
Example of NORMAL MODE A
Pulse is counted up at ON edge of A phase.
The input pulse samples each 100msec, and
processes worth of a digital filter ten times.
Please select a
“NORMAL MODE A”
when the number of input pulse is 100
[PULSE/s] or more.
Example of NORMAL A SLOW
The pulse interval of A phase is measured.
The number of pulses a second is operated.
Worth of a digital filter is processed to this
operation result ten times.
Stable measuring result can be obtained
when the number of input pulses is little.
A-phase ON
OFF
B-phase ON
OFF
A-phase ON
OFF
B-phase ON
OFF
Up-count
(A-phase advances than B)
Down-count
(B-phase advances than A)
OFF (Open)
ON (Close)
Count
Unit time (1 second)
+1 +1 +1 +1
・・・ ・・・
OFF (Open)
ON( Close)
Unit time (1 second)
Pulse interval 1 Pulse interval 2 Pulse interval 3