Relative Maximum And Relative Minimum Hold - Unipulse F370 Operation Manual

7-5-5. Relative Maximum and Relative Minimum Hold

Detection starts when the indicated value crosses the auto start level with the H/M signal
inputted. Detection is performed as long as the H/M signal is on.
The hold is released by turning on the T/H signal as a reset signal.
The H/E output signal is on between the instant when the hold starts and the instant when
the T/H signal is turned on.
If the auto start level is not needed as a starting condition of the detection period, set
99999.
(Example) Relative Maximum Hold
Auto Start Level
H/M
T/H
HOLD
Buttun
H/E
HOLD
PEAK
t1： A delay time between the instant when the indicated value exceeds the auto start
level and the instant when the value to be held is detected
0.5ms (max.)
t2：A delay time between the instant when the H/M signal is inputted and the instant
when the value to be held is detected
1.0ms (max.)
t3：A minimum reset signal width required for releasing the hold
1.0ms (min.)
＋
Indicated Value
t1
Detection
t2
OFF
ON
OFF
ON
OFF
ON
OFF
HI-LO Limit
Judging Output
ON
OFF
ON
OFF ON
OFF Blink
※ Comes on if a value is held with conditions met in the
detection period, and goes out if a value is not held.
7.HOLD FUNCTIONS
Sensor Input Value
Hold Period
t3
Decide
※ ON
or
OFF
OFF
ON OFF
t
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