AW-Lake AW Gear Meters MX 9000, Руководство по установке, эксплуатации и техническому обслуживанию

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Cycle Output (pulsed output)
Figure 18: Cycle Output
The CYCLE OUT limit function provides an incremental output signal for a remote
totalizer, typically at a lower resolution and frequency. Assigning a limit to the
CYCLE OUT function toggles the state of the limit output whenever the TOTAL
increments by the programmed cycle amount. The output remains ON until
the cycle amount accumulates and does not turn OFF until the cycle amount
accumulates again as represented in the figure below. The total accumulated
between a rising and falling edge is the cycle value. The total accumulated
between any two rising edges is twice the cycle value. You enter the cycle value
in programmed engineering total units.
CYCLE AM OUNT CYCLE AM OUNT CYCLE AM OUNT CYCLE AM OUNT CYCLE AM OUNT
LIM IT ON LIM IT ON
LIM IT OFF LIM IT OFF LIM IT OFF
2x CYCLE AM OUNT
CYCLE OUT (PULSE OUTPUT) Lim it Func tion
Figure 19: Cycle out Limit Function
CAUTION: Do not program a cycle amount that produces more than 5 pulses
per second (5 Hz).
Consider the maximum flow rate to determine the resulting output frequency. The
frequency produced (in Hz) is the actual flow rate in Engineering Units per Minute
divided by 120, divided by the CYCLE AMOUNT.
Figure 20. Rate Limits/Limit Margins