Honeywell UDC2500 User Manual

Monitoring and Operating the Controller
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4.5 Monitoring 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
R— RSP 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

Honeywell UDC2500 Specifications

General

Type	Universal Digital Controller
Alarm Relays	Up to 2 alarm relays
Communication	RS485 Modbus RTU
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, V
Control Modes	On/Off, PID
Output Types	Relay, mA, V
Power Supply	100-240 VAC, 24V DC
Dimensions	96x96x132 mm