Honeywell UDC2800 User Manual

5
Configuration Record Sheet 167
Chapter 5 - Monitoring and Operating the Controller 174
Overview 175
Operator Interface 175
Entering a Security Code 176
Lockout Feature 177
Monitoring Your Controller 178
Annunciators 178
Viewing the operating parameters 178
Diagnostic Messages 182
Start Up Procedure for Operation 183
Control Modes 184
Mode Definitions 184
What happens when you change modes 185
Setpoints 186
Timer 188
Accutune III 189
Tune for Simplex Outputs 191
Tune for Duplex (Heat/Cool) 192
Using AUTOMATIC TUNE at start-up for Duplex (Heat/Cool) 192
Using BLENDED TUNE at start-up for Duplex (Heat/Cool) 193
Using MANUAL TUNE at start-up for Duplex (Heat/Cool) 194
Error Codes 195
Fuzzy Overshoot Suppression 197
Using Four Sets of Tuning Constants 198
Auto/Manual Station 201
Alarm Setpoints 207
Three Position Step Control Algorithm 209
Contents

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X