21
SETPOINT POWER UP STATE
will restore the output to the same state it was at before the meter was
powered down.
will activate the output at power up.
will deactivate the
output at power up.
SETPOINT ON DELAY
SETPOINT OFF DELAY
SETPOINT HYSTERESIS
SETPOINT ACTION
: When not using a setpoint, it should be set to
(no action).
For Rate Assignments:
Refer to diagrams “Setpoint (Alarm) Figures for Rate” on page 22.
With Latch action, the setpoint output activates when the rate
value is equal to the setpoint value. The setpoint output remains
active until reset. If after reset, the rate value is greater than or
equal to (for
=
) or less than or equal to (for
=
) the
setpoint value, the output will reactivate.
With Boundary action, the setpoint output activates when the rate
value is greater than or equal to (for
=
) or less than or
equal to (for
=
) the setpoint value. The setpoint output will
deactivate (Auto reset) as determined by the hysteresis value.
With Timed Out action, the setpoint output cycles when the rate
value is greater than or equal to (for
=
) or less than or
equal to (for
=
) the setpoint value. The Setpoint Time Out
(
) and Setpoint On Delay (
) values determine the
cycling times.
For Totalizer Assignments:
With Latch action, the setpoint output activates when the totalizer
value equals the setpoint value. The output remains active until
reset. This action is not associated with Boundary types.
With boundary action, the setpoint output activates when the
totalizer value is greater than or equal to (for
=
) or less
than or equal to (for
=
) the setpoint value. The setpoint
output will deactivate when the totalizer value is less than (for
=
) or greater than (for
=
) the setpoint value. This is
the only action available for setpoints assigned to Totalizer C.
With Timed Out action, the setpoint output activates when the
totalizer value equals the setpoint value and deactivates after the
Time Out value. This action is not associated with Boundary
types.
SETPOINT VALUE
Enter the desired setpoint value. Setpoint values can also be entered in the
Quick Programming Mode when the setpoint is configured as
in Module 3.
(Note: An Exchange Parameter Lists feature for setpoint values is explained in
Module 2.)
SETPOINT TRACKING
If a selection other than
is chosen, then the value of the setpoint being
programmed (“n”) will track the entered selection’s value. Tracking means that
when the selection’s value is changed (in the Quick Programming Mode), the
“n” setpoint value will also change (or follow) by the same amount.
SETPOINT BOUNDARY TYPE
activates the output when the assigned display value (
) equals or
exceeds the setpoint value.
activates the output when the assigned display
value is less than or equal to the setpoint.
SETPOINT STANDBY OPERATION
Selecting
will disable low acting setpoints at power up until the assigned
display value crosses into the output “off” area. Once in the output “off” area,
the setpoint will function according to the configured setpoint parameters. This
parameter only appears for low acting setpoints.
to
The hysteresis value is added to (for
=
), or subtracted from (for
=
), the setpoint value to determine at what value to deactivate the associated
setpoint output. Hysteresis is only available for setpoints assigned to a Rate
display with boundary action.
to
This is the amount of time the assigned Rate display must meet the setpoint
deactivation requirements (below hysteresis for high acting and above
hysteresis for low acting) before the setpoint’s output deactivates.
to
seconds
This is the amount of time the assigned Rate display must meet the setpoint
activation requirements (below setpoint for
=
and above setpoint for
=
) before the setpoint’s output activates. If the Rate Setpoint Action is Timed
Out, this is the amount of time the output is off during the on/off output cycling.
to
seconds
SETPOINT TIME OUT
If the setpoint action is Timed Out and the setpoint is assigned to Rate, then
this is the amount of time the output is on during the on/off output cycling. If
the setpoint action is Timed Out and the setpoint is assigned to Totalizer, then
this is the amount of time the output will activate once the totalizer value equals
the setpoint value.
to
seconds
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
