Monitoring and Operating the Controller

4.5Monitoring Your Controller 4.5.1 Annunciators

The following annunciator functions have been provided to help monitor the controller:

Table 4-2 Annunciators

Annunciator

Indication

ALM 1 2

A visual indication of each alarm

 

Blinking 1 indicates alarm latched and needs to be acknowledged (by

 

pressing the RUN/HOLD key before extinguishing when the alarm

 

condition ends

OUT 1 2

A visual indication of the control relays

A or M

A visual indication of the mode of the controller (Dual display model only)

 

A—Automatic Mode

 

M—Manual Mode

[None], F or C

A visual indication of the temperature units

 

[None]—No temperature unit annunciator

 

F—Degrees Fahrenheit

 

C—Degrees Celsius

L or R

A visual indication of setpoint being used

 

L— Local Setpoint is active

 

RRSP or LSP 2 is active

 

The upper display is used to show other annunciator functions

 

TUNE—Accutuning in progress

 

RUN—SP Program in progress

 

HOLD—SP Program on hold

 

CSP—Controlling to the Computer Setpoint

 

LOOPBK—Loopback Test running

 

 

4/07

UDC2500 Universal Digital Controller Product Manual

93

Page 107
Image 107
Honeywell UDC2500 manual Monitoring Your Controller 4.5.1 Annunciators