YOKOGAWA YPP6830-AP0-0 Instruction Manual page 33

YPP6830 Explosion-Proof Pulse Input Rate/Totalizer
Test Output (test)
The test output setting programs the output to
generate pulses at a programmed constant
frequency. Set the frequency decimal point location in
the DECPT menu, and then enter the desired output
frequency in Hz in the PULSE menu.
Alarm Output (alrm)
Alarm outputs may be assigned to rate, total, or grand
total; or be forced on or off.
Rate Alarm (rate)
Program the rate set point to trigger the alarm. Rate
alarm deadband is determined by the difference
between set and reset points. Minimum deadband is
one display count. If set and reset points are
programmed the same, output will reset one count
below set point.
Total or Grand Total Alarm (Total, Grtot)
Program total or grand total set point. A pulse alarm is
generated when the set value is reached by the total or
grand total.
If the total/grand total is set for manual reset, this alarm
will remain until the total/grand total is reset to 0.
If automatic total/grand total reset is enabled, the output
will generate an alarm for a period of time programmed
in ADVANCE → T RESET → Auto →T DELAY. After this
time delay, the total/grand total will reset to 0 and the
alarm will clear.
If Out 1 and Out 2 are set for total or grand total alarm,
the auto reset will be triggered on the highest of the two
alarm set points.
For details on setting the total or grand total automatic
reset time delay, see Total Reset (T Reset) on page 38.
Force On State (On)
This alarm mode forces the output to be active, or on.
This mode is primarily used to test alarm systems.
Force Off State (OFF)
This alarm mode forces the output to be inactive, or
off. This mode is primarily used to test alarm systems.
Timer Output (tmer)
The timer output produces a constant width pulse at a
constant rate. Program the Delay Period from 0.1 to
999999.9 seconds (time from the start of one pulse to
the start of the next pulse).
Program the On Time for the active low pulse from .01
to 99999.99 seconds (pulse width). The on time must
be less than the delay time.
Select Start to begin outputting the constant timed pulse.
Select Stop to end outputting the constant timed pulse.
Total Reset Output (t rst)
A total reset output generates a pulse whenever the
selected total or grand total is reset, regardless of the
reset method used. Program the On Time from 0.10
to 99,999.99 seconds. This is the amount of time the
open collector output will remain on after the total or
grand total has been reset.
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Instruction Manual