Unipulse F377A, Руководство по эксплуатации

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1 EXP. HOLD FUNCTIONS
109
EXP. HOLD
FUNCTIONS
Chapter
1
22.
A: Relative minimum hold B: Relative difference hold
When the Hold Start Level is detected after turning-ON of the SECTION signal, Relative Minimum and
Relative Difference (difference between the Relative Maximum and Relative Minimum) hold detection
starts. For the Hold Start Level, Detection Start Condition can be selected.
Also, the value is maintained until the T/H signal turns ON with the hold Detection Start
Condition External Only. The value is maintained until the T/H signal turns ON.
■
HI/LO limit comparisons of double hold
You can set HI/LO-A and HI/LO-B for comparisons of Hold A and Hold B.
- HI limitA(B) -99999 - 99999 Initial value: 6000(8000)
- LO limitA(B) -99999 - 99999 Initial value: 4000(2000)
HI/LO Limit comparisons of Double Hold are made, and respective judgment results are output
externally.
- Hold A HI (HI-A)
ON Condition: Hold A ＞ HI-A
OFF Condition: Hold A ≦ HI-A
- Hold A LO(LO-A)
ON Condition: Hold A ＜ LO-A
OFF Condition: Hold A ≧ LO-A
- HI-B
ON Condition: Hold B ＞ HI-B
OFF Condition: Hold B ≦ HI-B
- LO-B
ON Condition: Hold B ＜ LO-B
OFF Condition: Hold B ≧ LO-B
- OK
ON Condition: All of HI-A, HI-B, LO-A, and LO-B are OFF.
OFF Condition: Any of HI-A, LO-A, HI-B, and LO-B is ON.
* You can set the Comparison Timing condition for each of Hold A and Hold B.
* If the Comparison Timing condition is not met, the comparison result of the value targeted for the
Comparison Timing turns OFF.
When the Detection Start Condition is External Only
Sensor Input Value
Hold Value A
Hold Value B
H/E
T/H
SECTION
HOLD 䋨 A 䋩
Status Display
OFF
MIN 䋨 A 䋩
OFF ON
Blink ON OFF OFF
Blink ON OFF
OFF ON OFF
OFF
DIF 䋨 B 䋩
HOLD
䋨
B
䋩
Status Display
Status Display
Status Display
For the Relative Difference, the
indicated value is renewed at the
instant when the Relative Maximum
and Relative Minimum are fixed.
(The sensor input value applies until
the hold values are fixed.)
If there is no relative maximum/
minimum / difference in the changes
of the sensor input value, resulting in
no hold, both the HOLD and MIN*
status indications will flash.
Also, the H/E signal will not turn ON.
* DIF for Relative Difference