Initial Configuration Start-Up; Controller Power-Up; Parameter Configuration Overview; Parameter Configuration Basic Start-Up - Omega CN63100 Series User Manual

INITIAL CONFIGURATION START-UP

CONTROLLER POWER-UP

Upon applying power, the controller delays input indication and control
action for five seconds to perform several self-diagnostic tests and to display
basic controller information. Initially, the controller illuminates both
displays and all annunciators to verify that all display elements are
functioning. The controller then displays the programmed input sensor type
in the main (top) display and the revision number of the controller's operating
system software in the secondary (bottom) display. The controller checks for
correct internal operation and displays an error message (E-xx) if an internal
fault is detected. (See Troubleshooting, page 71, for further information).
Upon completion of this sequence, the controller begins displaying the
input value and updating the outputs based upon the control calculation.

PARAMETER CONFIGURATION OVERVIEW

The controller is programmed with certain parameter settings from the
factory. Factory settings are listed in parentheses in the various Configuration
of Parameters tables. In many cases, these settings must be changed to the
particulars of the application before proper operation can be started.
The controller is typically in the Normal Display Mode. When changes to
parameter configurations are needed, the P button is pressed. From the factory,
the controller will enter directly into the Unprotected Parameter Mode.
Continue to press the P button until CnFP appears in the bottom display. At this
time, press the Up arrow button and 1-In will appear in the bottom display. This
will be the Configuration Parameter Mode. This programming flow is shown in
the Front Panel Programming Chart. (If at any time during front panel
programming the D button is pressed, the controller will return to the Normal
Display Mode and the programming can be started over.)
In the Configuration Parameter Mode, the Up or Down arrow buttons can
be pressed to move to the desired Parameter Module. The P button is then
pressed to enter into that module. The main (top) display will be the parameter
and the secondary (bottom) display will be the parameter value. The Up or
Down arrow buttons are used to change the desired parameter value and the P
button enters the new value and moves to the next parameter.
The Setpoint value (lower display) is changed with the Up or Down arrow
buttons when it is selected in the Normal Display Mode.

PARAMETER CONFIGURATION BASIC START-UP

For basic start-up, it is important to verify or change Input Parameter
Module (1-IN) parameters tYPE and SCAL, and Output Parameter Module
(2-OP) parameter OPAC. For alarm and heat/cool set-up, it is important to
verify or change Alarms Parameter Module (4-AL) parameters ACt1, AL-1,
ACt2 and AL-2.
If the above Input Parameters or the input wiring connections are not
correct, then the main (top) display may display an error message or incorrect
value. Verify the input programming and wiring. (If incorrect display
continues refer to Troubleshooting, page 71.) All other parameter
configurations are important but will not prevent the controller from showing
a correct display.

PARAMETER CONFIGURATION FOR SERIAL START-UP

The parameter settings can be changed by the front panel button. For serial
communications set-up, it is important to check serial wiring and verify or
change Serial Parameter Module (6-SC) parameters bAUd, ConF,s and Addr.
(See Serial Communications Interface, page 57, for more details.)

CONTROL START-UP

After verifying proper programming and system start-up, a controlling
method needs to be configured. For Manual Control or open loop, where the
control does not work from the setpoint or process feedback, see Manual
Control, page 46. For On / Off Control, set Proportional Band Prop to 0.0%
and see On / Off Control, page 47. The controller comes with factory setting
for PID Control. However, for optimum PID Control, several options exist
for configuring Proportional Band, Integral Time, and Derivative Time
parameters for specific applications.
a. Use controller's built-in Auto-Tune feature (See Auto-Tune For PID
Control, page 50).
b. Use a manual tuning technique (See Manual Tuning For PID Control,
page 55).
c. Use a third party tuning software package.
d. Use values based on control loop experience, calculated values or values
from a similar process or previous controller.
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