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application would require reverse acting control. In a
direct-acting controller, the output increases as the
process variable increases. A cooling application would
require direct-acting control. Enter the code from the
Table of Output Type Codes which establishes the con-
troller as either a reverse or direct-acting controller.
The Sensor Burn-out Protection is the intended direc-
tion of the output in the event of a thermocouple or RTD
sensor break, or a break in the analog input. The con-
troller can be programmed with either upscale or down-
scale burn-out direction. With upscale burnout, 100%
output will be delivered in the event of sensor burnout.
With downscale burnout, 0% output will be delivered in
the event of sensor burnout. Enter the appropriate code
from the Table of Output Type Codes.
Refer to Error Messages on page 62 for more details.
P-dF
Input Filter Constant:
The Input Filter is used to filter out
the quick changes that occur to the process variable in
a dynamic or quick responding application that might
cause erratic control. By slowing down the response
Summary of Contents for CN4321
Page 33: ...32 SYSTEM WIRING DIAGRAMS Example 1 Example 2...
Page 45: ...44 Deadband Overlap...
Page 48: ...47 Table of Input Type Codes...
Page 50: ...49...
Page 53: ...52 Table of Alarm Action Type Codes CN4321...
Page 54: ...53 Table of Alarm Action Type Codes CN4431...
Page 59: ...58 Table of Output Type Codes...