Introduction

4

MONITORING AND OPERATING THE CONTROLLER

89

4.1

 

Overview

89

4.2

 

Operator Interface

90

4.3

Entering a Security Code

90

4.4

 

Lockout Feature

91

4.5

 

Monitoring Your Controller

93

 

4.5.1

Annunciators

93

 

4.5.2 Viewing the operating parameters

94

 

4.5.3

Diagnostic Messages

95

4.6

 

Single Display Functionality

97

4.7

Start Up Procedure for Operation

99

4.8

 

Control Modes

100

 

4.8.1

Mode Definitions

100

 

4.8.2 What happens when you change modes

101

4.9

 

Setpoints

101

4.10

Timer

102

4.11

Accutune III

104

 

4.11.1

Tune for Simplex Outputs

105

 

4.11.2

Tune for Duplex (Heat/Cool)

105

 

4.11.3

Using AUTOMATIC TUNE at start-up for Duplex (Heat/Cool)

106

 

4.11.4

Using BLENDED TUNE at start-up for Duplex (Heat/Cool)

106

 

4.11.5

Using MANUAL TUNE at start-up for Duplex (Heat/Cool)

107

 

4.11.6

Error Codes

109

4.12

Fuzzy Overshoot Suppression

110

4.13

Using Two Sets of Tuning Constants

110

4.14

Alarm Setpoints

112

4.15

Three Position Step Control Algorithm

113

4.16

Setting a Failsafe Output Value for Restart After a Power Loss

114

4.17

Setting Failsafe Mode

115

4.18

Setpoint Rate/Ramp/Program Overview

115

4.19

Setpoint Ramp

116

4.20

Setpoint Rate

117

4.21

Setpoint Ramp/Soak Programming

118

4.22

P.I.E. Tool Maintenance Screens

125

4.23

Configuring your Ethernet Connection

131

5

INPUT CALIBRATION

136

5.1

Overview

136

5.2

Minimum and Maximum Range Values

137

5.3

Preliminary Information

139

5.4

Input 1 Set Up Wiring

140

4/07

UDC2500 Universal Digital Controller Product Manual

vi

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Image 6
Honeywell UDC2500 manual Monitoring and Operating the Controller, 136