Externally Specified Period Hold; (Peak, Valley, Peak-To-Peak And Mean Value) - Unipulse F370 Operation Manual

7.HOLD FUNCTIONS

7-6-2. Externally Specified Period Hold

(Peak, Valley, Peak-to-Peak and Mean Value)

By this method, the hold detection period is externally specified by the H/M signal to
maintain the hold value until the reset signal is turned 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 H/M signal is turned off and
the instant when the T/H signal is turned on.
t1：A delay time between the instant when the H/M signal is inputted and the instant
t2：A delay time between the instant when the H/M signal is released and the instant
t3：A minimum reset signal width required for releasing the hold
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(Example) Period Specified Peak Hold
＋
t1
OFF
H/M
ON
OFF
HOLD
Button
ON
OFF
T/H
ON
OFF
HI-LO Limit
Judging Output
ON
OFF
H/E
ON
OFF
HOLD
PEAK OFF
when the value to be held is detected
1.0ms (max.)
when the value to be held is determined
1.08ms (max.)
1.0ms (min.)
Indicated Value
Hold Period
Detection
t2
Decide
ON ON
Blink ON
Sensor Input Value
t
t3
OFF
OFF