4 module 4 - s, Etpoint, Utput – Red Lion PAXLT User Manual
Page 9: Arameters, Parameter menu
9
5.4 Module 4 - s
etpoint
o
utput
p
araMeters
(
)
PAR
Setpoint
Action
Setpoint
Select
Setpoint
Value
Output Reset
Action
Hysteresis
Value
Off Time
Delay
On Time
Delay
Output Reset
With Display
Reset
SPSEL
4-SPt
Act-n
SPt-n
HYS-n
tON-n
tOF-n
rSt-n
rEn-n
Pro
Standby
Operation
Stb-n
Enb-n
Setpoint
Enable
Probe
Burn-out
Action
brn-n
PARAMETER MENU
Select the Setpoint Output to be programmed, starting with Setpoint 1. The
“
” in the following parameters reflects the chosen Setpoint number. After the
selected setpoint is completely programmed, the display returns to
.
Repeat steps for Setpoint 2 if both Setpoints are being used. Select
to exit the
Setpoint programming module.
SETPOINT SELECT
Select
to enable Setpoint
and access the setup parameters. If
is
selected, the unit returns to
and Setpoint
is disabled.
SETPOINT ENABLE
Enter the action for the selected setpoint (output). See Setpoint Output
Figures for a visual detail of each action.
SETPOINT ACTION
High Acting, with balanced hysteresis
Low Acting, with balanced hysteresis
High Acting, with unbalanced hysteresis
Low Acting, with unbalanced hysteresis
=
=
=
=
OUTPUT
STATE
OFF
ON
Hys
SP + ½Hys
SP
SP - ½Hys
OFF
TRIGGER POINTS
High Acting (Balanced Hys) =
OUTPUT
STATE
OFF
ON
Hys
SP + ½Hys
SP
SP - ½Hys
OFF
TRIGGER POINTS
Low Acting (Balanced Hys) =
OUTPUT
STATE
OFF
ON
Hys
SP + Hys
SP
OFF
TRIGGER POINTS
Low Acting (Unbalanced Hys) =
OUTPUT
STATE
OFF
ON
Hys
SP
SP - Hys
OFF
TRIGGER POINTS
High Acting (Unbalanced Hys) =
SETPOINT VALUE
Enter the desired setpoint value. The decimal point position for the setpoint
and hysteresis values follow the selection set in Module 1.
to
HYSTERESIS VALUE
to
Enter desired hysteresis value. See Setpoint Output Figures for visual
explanation of how setpoint output actions (balanced and unbalanced) are
affected by the hysteresis. When the setpoint is a control output, usually
balanced hysteresis is used. For alarm applications, usually unbalanced
hysteresis is used. For unbalanced hysteresis modes, the hysteresis functions on
the low side for high acting setpoints and functions on the high side for low
acting setpoints.
Note: Hysteresis eliminates output chatter at the switch point, while time delay
can be used to prevent false triggering during process transient events.
OFF TIME DELAY
to
Sec
Enter the time value in seconds that the output is delayed from turning off
after the trigger point is reached. A value of 0.0 allows the meter to update the
output status per the response time listed in the Specifications.
ON TIME DELAY
Enter the time value in seconds that the output is delayed from turning on
after the trigger point is reached. A value of 0.0 allows the meter to update the
output status per the response time listed in the Specifications.
to
Sec
Enter the reset action of the output. See figure for details.
= Automatic action; This action allows the output to
automatically reset off at the trigger points per the Setpoint Action shown in
Setpoint Output Figures. The “on” output may be manually reset (off)
immediately by the front panel
RST
button or user input.The output remains
off until the trigger point is crossed again.
OUTPUT RESET ACTION