Configuration Parameter Definitions
Control Parameters Set Up Group
92 DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual Release M
April 2017
Upper Display
Range of Setting or Selection
TWO SETS SP AUTOMATIC SWITCHOVER — when
the setpoint is GREATER than the value set at prompt
"SW VALUE" (Switchover Value), the recorder will use
Gain, Rate, Reset, and Cycle.
When the setpoint is LESS than the value set at
prompt "SW VALUE," the recorder will use Gain #2,
Rate #2, Reset #2, and Cycle #2.
Other prompts affected: SW VALUE
AUTOMATIC SWITCHOVER VALUE —this is the value
of process variable or setpoint at which the recorder will
switch from Tuning Constant Set #2 to Set #1. Only
appears when PID SETS selections “2PV SW” or “2SP
SW” are selected.
SETPOINT SOURCE — this selection determines what
your setpoint source will be; One local or Two local.
Toggled by the “SETPOINT SELECT” key.
LOCAL SETPOINT — the setpoint entered from the
keyboard or from the setpoint program.
REMOTE SETPOINT — a signal is brought in through
the second input printed circuit board connector J2 and
used as the control setpoint.
If you select “REMOTE”, Input #2 is automatically
assigned as your RSP source for CONTROL #1;
there is no remote setpoint for CONTROL #2.
Ratio and Bias can be applied to the remote setpoint.
Mutually exclusive with 2 Local setpoints.
Other prompts affected: RATIO, BIAS.
TWO LOCAL SETPOINTS — this selection lets you
switch between two local setpoints. Mutually exclusive
with Remote setpoint.
Only for Loop 1— Setpoint is the output of Control Loop
2.
RATIO — used when input 2 operates as a remote
setpoint, prompt "REMOTE."
This ratio value can be applied to the remote setpoint.
It establishes the correct relationship between the
remote setpoint and the input 2 signal applied
according to the formula below (under Bias).
Input 2 must be enabled.
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