Through-beam Sensor Heads: FUN Mode Functions Section 3-8
97
3-8-6 Timer
Timer Time
The time set for the timer is the delay time for the ON-delay timer, the delay
time for the OFF-delay timer, or the pulse width for the one-shot timer. Set
the time according to the requirements of the control system (e.g., PLC).
The timer time can be set to between 0 and 5,999 ms.
Timer Disable
If the timer is disabled, judgement outputs will be made immediately and
the output response time will be determined by the number of samples to
average.
OFF-delay Timer
When the measured value changes from HIGH to PASS or from LOW to
PASS, turning OFF the PASS output is delayed for the timer time.
ON-delay Timer
When the measured value changes from HIGH to PASS or from LOW to
PASS, turning ON the PASS output is delayed for the timer time.
One-shot Timer
When the measured value changes from HIGH to PASS or from LOW to
PASS, the PASS output is turn ON with a pulse width equivalent to the
timer time.
When PASS output pulses overlap, the latter pulse has priority. Therefore,
overlapping pulses might sometimes become a single pulse rather than
separate pulses.
Note: Neither the HIGH nor the LOW output are output when the one-shot timer
is selected.
Refer to 4-5-6 FUN Mode Status Transitions.
Z157-E1-01C.book Page 97 Thursday, August 31, 2006 5:13 PM
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