Orion System GPC-XP Controller - Manual (Page 33)

GPC-XP Controller Technical Guide
Section 7: Confi guring Analog Outputs
33
Alternate Override and Override
Alternate Override
An Alternate Override Source can be selected to override the output
signal of this Analog Output to a fi xed value when a certain condition
occurs (Figure 66 below).
First select which Override Source to use:
● Analog Inputs # 1 – 8
● Outdoor Air
● OA Wetbulb
● OA Dewpoint
● AVC Highest Reading
● AVC Lowest Reading
● AVC Average Reading
Next select the logic, setpoint, and deadband that will determine the
Override (Figure 67 below). Right or left-click in the Logic Field
to select
< , > , or = .
Figure 66: Alternate Override
Figure 67: Logic, Setpoint, and Deadband
Figure 68: Voltage
Override & Cancel Override
You can manually override the logic of an Analog Output and force
it to a specifi c voltage. The Override Voltage fi eld defaults to “-1.0”
which means no override.
Right-click in the data entry fi eld in the Analog Outputs Window
(Figure 51, page 28) to open the Override Voltage Box shown in
Figure 69 below and enter an override value. Click the
button to save the value. If you enter an incorrect value, click the
button to start over. If there is any value in the fi eld, in-
cluding “0” when you click , the voltage from this output
will be forced to that value. Canceling the Override will cause the
voltage to go back to its original reading, and the Override Voltage
fi eld will display “-1.0”.
Figure 69: Calibrate and Override Sensor
Finally, select the voltage you want to hold this output to based on
the above logic (Figure 68 below).