Emerson AC8 User Manual

AC8

SITE MONITORING AND SERVICES

USER MANUAL

TABLE OF CONTENTS

1.0 INTRODUCTION

1.1 Methods of Viewing and Configuring the AC8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Data Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Transformer Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.4 Available Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.5 Outside Enclosure Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.6 Typical Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.7 Controller Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.8 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.9 Typical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.0 INSTALLATION

2.1 Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1.1 Unpacking and Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Surface-Mounting the AC8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.1 Mounting the Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Flush-Mounting the AC8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.1 Mounting the Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4 Connect Power to the AC8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4.1 Termination and Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4.2 Connecting the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.3 Turning On the AC8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.0 WIRING AND CONNECTIONS

3.1 Wiring Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Connecting Digital Inputs and Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.1 Connecting Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.2 Connecting Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.3 Setting the Digital Output Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.4 Connecting Control Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.5 Connecting the Emergency Power Operation (EPOP) Input . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.6 Setting the EPOP Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Connecting Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3.1 Setting the 12VDC/24VDC Analog Power Jumper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3.2 Connecting the Analog Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4 Connecting Common Alarm Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5 EIA422 SiteScan Web Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6 Communications Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6.1 RS232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6.2 Phone Line Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.0 OVERVIEW OF MENUS

4.1 Opening Screen Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.2 Main Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 LCD Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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5.0 VIEW STATUS OPTIONS

5.1 View Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1 Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 View Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2.1 Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2.2 Backing Up the Alarm Log (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.3 View Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.3.1 Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.3.2 Backing Up the Event Log (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.4 View Trend Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.4.1 Select a Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.4.2 View a Trend Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.4.3 Backing Up the Trend Log (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.5 View Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.5.1 Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.6 View Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.6.1 Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.7 View Pager Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.7.1 Select a Pager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.7.2 View a Pager Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.7.3 View a Pager PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.8 View Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.8.1 Select a Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.8.2 View Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.9 View Control Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.9.1 Control Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.0 SILENCE ALARM & BACKUP LOG FILES (SERVICE TERMINAL INTERFACE)

6.1 Silence Alarm (Service Terminal Interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2 Back Up Log Files (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.0 SYSTEM AND CONTROL OPTIONS

7.1 Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.2 Setup System - Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.3 Setup System - Setup Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.3.1 Change Label (Name of Input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.3.2 Define Input as Normally Open or Normally Closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.3.3 Define Input as Alarmable or Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.3.4 Set Up Alarmable Inputs in Latched or Unlatched Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.3.5 Set Up Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.4 Setup System - Setup Common Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.5 Setup System - Setup Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.5.1 Identify the Sensor as Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.5.2 Change Sensor Label (Name) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.5.3 Change Units Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.5.4 Change 4 mA Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.5.5 Change 20 mA Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.5.6 Change Offset Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.5.7 Define Sensor as Alarmable or Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.5.8 Set Up Alarmable Sensors in Latched or Unlatched Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.5.9 Change Low Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.5.10 Change High Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.5.11 Set Up Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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7.6 Setup System - Setup Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.6.1 Set Up a Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.7 Setup System - Setup Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.7.1 Define Output as Normally Open or Normally Closed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.7.2 Define Operating or Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.7.3 Enable or Disable an Output Device in Alarm Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.7.4 Enable or Disable a Device during Emergency Power Operation . . . . . . . . . . . . . . . . . . . . . . 48

7.7.5 Configure Output for Loss of Power (“Fail-Safe”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.8 Setup System - Setup Modem & Pagers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.8.1 Modem Setup - Initialization String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.8.2 Modem Setup - Additional Features (Service Terminal Interface only) . . . . . . . . . . . . . . . . . 51

7.8.3 Pager Setup - Pager Number and PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.8.4 Pager Setup - Communications Check (Service Terminal Interface only). . . . . . . . . . . . . . . . 55

7.9 Setup System - Setup System Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.9.1 Change Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.9.2 Change Date & Time/Automatic Daylight Saving Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.9.3 Setup Site ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.9.4 Connect Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.9.5 Backup and Upload Configuration File (Service Terminal Interface only) . . . . . . . . . . . . . . . 60

7.9.6 Setup Serv Ph Num - Enter Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

7.9.7 Setup Serv Ph Num - Communications Check (Service Terminal Interface only) . . . . . . . . . 64

7.9.8 Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

7.9.9 Perform Firmware Update (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 65

7.9.10 Initiate Remote Alarm Test (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . 67

7.10 Setup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

7.10.1 Turn Automatic Sequencing On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.10.2 Turn Standby Testing On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.10.3 Specify Failed Standby Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.10.4 Specify Hold Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

7.10.5 Specify Restart Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

7.10.6 Specify Staging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7.11 Setup System - Setup I/O Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

7.11.1 Set Up Mapping for a Digital Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

7.11.2 Set Up Mapping for an Analog Sensor Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

7.12 Override Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

7.13 Clear Alarms & Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

7.13.1 Clear Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

7.13.2 Clear the Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

7.13.3 Clear the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

7.13.4 Clear the Trend Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.0 SPECIFICATIONS

8.1 AC8 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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APPENDIX A-SERVICE TERMINAL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

A.1 Comparison of Functions: LCD and Service Terminal Interface. . . . . . . . . . . . . . . . . . . . . . 79

A.2 Connecting to the Service Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

A.2.1 Connection Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

A.2.2 Create a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

A.2.3 Set Up the COM1 Port - Direct Connection Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

A.2.4 Set Up the Connection’s Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

A.2.5 Connect to the Service Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

A.3 Overview of Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

A.3.1 View Status Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

A.3.2 Silence Alarm and Backup Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

A.3.3 Setup Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

A.4 View Status Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

A.4.1 View Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

A.4.2 View Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

A.4.3 View Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

A.4.4 View Trend Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

A.4.5 View Input Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

A.4.6 View Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

A.4.7 View Pager Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

A.4.8 View Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

A.4.9 View Control Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

A.5 Silence Alarm & Back Up Log Files (Service Terminal Interface only). . . . . . . . . . . . . . . . . 92

A.5.1 Silence Alarm (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

A.5.2 Back Up Log Files (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

A.6 Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

A.6.1 Setup Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

A.6.2 Setup Common Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

A.6.3 Setup Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

A.6.4 Setup Zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A.6.5 Setup Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

A.6.6 Setup Modem & Pagers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

A.6.7 Setup System Info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

A.6.8 Setup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

A.6.9 Override Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

A.6.10 Clear Alarms & Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

A.6.11 Setup I/O Matrix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

APPENDIX B-DEFAULT SETTINGS QUICK REFERENCE GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . 117

iv

FIGURES

Figure 1 AC8 enclosure—external features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 2 AC8 enclosure—internal features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 3 Typical Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 4 Example of typical sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 5 Mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 6 Power wiring to TM115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 7 Power wiring to TM230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 8 LCD Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 9 Menu overview - View Status menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 10 Menu overview - System and Control menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 11 Menu overview - Setup System Info menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 12 Menu overview - Setup Operation menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

TABLES

Table 1 Controller board components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 2 LED indicators summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3 Packing manifest. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 4 Wiring specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 5 Digital output jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 6 Guide to AC8 functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 7 Primary functions overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 8 Alarm log conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 9 Event log conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 10 Trend log conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 11 Analog input states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 12 Digital input states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 13 Digital output states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 14 Valid characters for data entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 15 Default settings - digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 16 Input and output labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 17 Default settings - analog sensor inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 18 Default zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table 19 Default settings - digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 20 Supported modem settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 21 Default settings - modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 22 Country codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table 23 Pager dialing results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 24 Guidelines for dialing pagers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Table 25 Battery alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Table 26 Service phone number dialing results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Table 27 Guidelines for dialing service phone number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Table 28 Default settings - operation features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Table 29 Failed Standby response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Table 30 Default mapping of digital inputs to relays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table 31 Default mapping of analog inputs to relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Table 32 Automatic / manual control - output points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Table 33 Guide to AC8 functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Table 34 Steps to set up a direct or remote connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Table 35 AC8 - default settings for inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Table 36 AC8 - other default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

v

vi

1.0 INTRODUCTION

The Liebert AC8 is ideal for coordinated control of systems with redundant equipment, such as
multiple environmental units or pumps. When the AC8 controller detects an alarm in an operating
device, the AC8 enables a standby device and controls the device in alarm as configured, either
leaving that device operating or disabling it.

The AC8 controller can also balance usage of devices by rotating units through Operating and
Standby modes according to a user-defined schedule. This helps keep redundant equipment operating
efficiently and only when needed. The AC8 can perform routine testing of standby devices and alert
personnel if a standby device fails an operating test and requires attention.

The staging feature permits standby devices to be turned on or off when a sensor detects specified
levels. For example, the AC8 might be configured to turn on a fan when the temperature reaches
75°F, then turn on a second fan at 80°F. When the temperature falls below 80°F, the second fan is
turned off; when it drops below 75°F, the first fan is turned off.

Another capability of the AC8 is monitoring the status of connected devices and keeping personnel
apprised through local alarming. The AC8 employs local alarming and remote paging services to keep
personnel on-site and at remote locations apprised of the status of equipment.

The AC8 controller can interface with anything that closes an electrical contact. To improve process
efficiency and troubleshooting, the controller tracks data in three types of logs: alarm, event and trend.
The AC8 has a local LCD interface and a remote dial-up interface.

When an alarm condition arises, the AC8 displays alarm information, sounds an audible alarm,
changes the state of the common alarm relay and turns connected devices on or off according to user
configuration. If configured, the controller also sends pager notifications. See 1.6 - Typical Configu-
ration for a more detailed example.

Introduction

1.1 Methods of Viewing and Configuring the AC8

The AC8 features access through two interfaces that allow users to configure the unit, silence alarms,
back up logs, and perform many other functions to keep a large or small operation running smoothly
and safely.

• LCD—liquid crystal display on the front of the panel

• Service Terminal Interface—accessible via computer connected directly through an RS232
port or remotely through the AC8’s onboard modem

These interfaces permit easy access and configuration of the AC8, allowing users to view data, silence
alarms and have full access to information stored in the controller, including logs of alarms and events.

One more interface—Liebert’s SiteScan Web enterprise monitoring system—is primarily for monitor­ing, though SiteScan also provides some configuration functions.

1.2 Data Logs

The three types of data logs—alarm history, event history and trend data of analog sensor readings—
can be viewed on the LCD on the front of the AC8 and downloaded through onboard communications
ports.

1.3 Transformer Module

A Transformer Module converts 115VAC or 230VAC to 24VAC.

1.4 Available Alarms

The alarms available with the AC8 are:

• Discrete input alarm
(for each digital input)

•High setpoint

• Low setpoint

• Loss of power

• Low battery

• Check battery

• Battery unplugged

• Internal modem fault

• No standby available

• Standby device
failed

1

• No restart available

• Emergency power
alarm

1.5 Outside Enclosure Overview

BAR CODE

NO

SENS

The AC8’s controller board comes in an enclosure that is 2-3/4" deep and has a built-in liquid crystal
display (LCD) and a key lock, as shown in Figure 1. The enclosure is made of metal to accommodate
secure conduit fittings and protect components against environmental debris.

Figure 1 AC8 enclosure—external features

The enclosure
has knockouts
and access slots
on top and
bottom for
cables and wires.

Introduction

LCD for configuration
and operation

Key lock

The enclosure houses the controller board and Transformer Module, as shown in Figure 2.

The enclosure must be secured to a wall, either flush-mounted or recessed in the wall, as described in

2.0 - Installation. Knockouts and access slots on the top and bottom allow easy connection of wires
and cables (see 3.0 - Wiring and Connections) with either mounting type.

Figure 2 AC8 enclosure—internal features

Transformer Module

Back of LCD

On/Off switch
for Transformer
Module

Ground wire
for LCD

Power receptacle
(115VAC model only)

TB5: COMMON ALARM

(TERMINAL BLOCKS ROTATED IN VIEW)

NO C NC NO C NC

(BOTTOM)

(TOP)

LS1

TB7:

START

BAR CODE

LIEBERT

MODEM

J11: PHONE

PIN 3-TIP

ON

PIN 4-RI"N"G

+

ENABLE

P11

AUDIBLE

R402

ALARM

R26

Q11

TOP

TB3:
RELAY
OUTPUTS

(BOTTOM)
(BOTTOM)

(TOP)

8

4

7

3

6

2

5

1

(BOTTOM)
(BOTTOM)

(TOP)

8

4

7

3

6

2

5

1

TB2:
CONTACT

ASS REV

TB9: ANALOG
GROUND

ALL CIRCUITS;

CLASS 2

INPUTS

1-2 TOP
3-4 BOTTOM

(TOP)

—

——

+

+ +

485

—

+—+

(BOTTOM)

—

+

Controller Board

Knockouts and
access slots
(top and bottom)

2

1.6 Typical Configuration

BAR CODE

Figure 3 shows an example of external devices connected to the AC8’s controller board. Up to eight
devices may be connected to the eight digital inputs and eight digital outputs. There may be up to four
analog sensors connected to the analog inputs, and up to two devices connected to the control relay
outputs. The EPOP connection allows for one device, possibly a UPS or generator input actuated
during a power failure.

Remote access is available via SiteScan Web and through the modem, which enables pager notifica­tions and use of the Service Terminal Interface. A computer may be connected to the RS232 port, pro­viding access to the features of the Service Terminal Interface.

Figure 3 Typical Configuration

TB7:

START

24V INPUT

BATTERY

RS232

ON

Phone

line

P23:
BATTERY

VBATT

J11: PHONE

PIN 3-TIP
PIN 4-RING

LCD
CONTRAST

BAR CODE

LIEBERT

Introduction

Contact relay

TB5: COMMON ALARM

RELAY OUTPUTS

NO C NC

LS1

+

ENABLE

P11

AUDIBLE

Q11

TP1

GND

ON

ON

DIP

S2

1

2345678

OFF

MODEM

MODEM

OUTPUT1

DS56

OUTPUT2

DS54

OUTPUT3

DS63

OUTPUT4

DS61

OUTPUT5

DS60

OUTPUT6

DS62

OUTPUT7

DS55

OUTPUT8

DS57

CTRLLOCK

DS59

DS83

SENLOCK

DS58

CAN TX

CMN ALR

DS84

DS53

CAN RX

MOP
F PROG
574 TX
574 RX
485 RX
485 TX

INPUT1
INPUT2
INPUT3
INPUT4

DS70

INPUT5

DS67

INPUT6

DS66

INPUT7

DS65

INPUT8

DS64

R334

C71

1-2 TOP
3-4 BOTTOM

485

(TOP)

—

——

+

+ +

AG

422

TB9: ANALOG

—

+—+

(BOTTOM)

GROUND

—

+

(TOP)

NO C NC

BOTTOM

TOP

PFM5 PFM2

TB1

EPOP INPUT

EPOP

P19

EPOP

DIS EN

TB1, TB2 INPUTS:
DRY CONTACTS ONLY.

TB3, TB4, TB5
OUTPUT RELAY

RATINGS: 24V, 3A

CLASS 2 ONLY.

RELAY
OUTPUTS

(TOP)

4

3

2

1

(TOP)

REV

4

3

2

1

TB2:
CONTACT

ASS

INPUTS

TB1: EPOP
CONTACT
INPUT

TB4:

(BOTTOM)

NC

NC

C

C

NO

NO

2

(BOTTOM)

8

7

6

5

(BOTTOM)

8

7

6

5

Input 1 &Output 1

output

Humidity

lockout

DEVICES CONNECTED TO

DIGITAL INPUTS & OUTPUTS

ZONE 1 DEVICES

Device 1

connected to

Device 2

connected to

Input 2 & Output 2

SiteScan Web

Analog inputs

EPOP contact

input

Generator

3

Liebert

Challenger

3000

ZONE 2 DEVICES

Device 3

connected to

Input 3 &Output 3

Liebert

Himod

Liebert

Challenger

3000

Device 4

connected to

Input 4 & Output 4

Liebert

Himod

1.7 Controller Board Overview

BAR CODE

The AC8’s controller board has connectors for eight digital inputs, four analog inputs, eight digital
outputs, two control relay outputs and an EPOP contact input, as shown below. The board comes com­plete with light emitting diodes (LEDs) to display the status of connected devices, a battery pack for
short-term backup, communications ports, power connections and other features necessary to control
your operation.

HH - Transformer
Module

GG - 24VAC power
connector

FF - Battery pack
connector

EE - LCD contrast
adjustment

DD - LCD
connector

CC - DIP switch 1

BB - Modem
status LEDs

AA - Modem

Z - 24VAC
connector

Y - Power On/Off
switch

X - Power
receptacle

W - Phone
line
connector

A - Power
On/Off switch

ON

V - Serial
interface
connector
(RS232/EIA574)

B - Battery
pack

TB7:
24V INPUT

P23:
BATTERY

U - EIA485
connector

START

BAR CODE

LIEBERT

BATTERY

LCD
CONTRAST

VBATT

J11: PHONE

PIN 3-TIP
PIN 4-RING

T - SiteScan
Web
connector
(EIA422)

C - EIA422
LEDs

TP1

GND

ON

ON

S2

1

2345678

OFF

MODEM

MODEM

DIP

(TOP)

(BOTTOM)

OUTPUT1

DS56

OUTPUT2

DS54

OUTPUT3

DS63

OUTPUT4

DS61

OUTPUT5

DS60

OUTPUT6

DS62

OUTPUT7

DS55

OUTPUT8

DS57

CTRLLOCK

DS59

DS83

SENLOCK

DS58

CAN TX

CMN ALR

DS84

DS53

CAN RX

DS70
DS67
DS66
DS65
DS64

R334

C71

485

—

——

+

+ +

422

+—+

—

+

S - 12VDC/
24VDC analog
input jumper

D - Audible
horn

TB5: COMMON ALARM

RELAY OUTPUTS

NO C NC

LS1

+

ENABLE

P11

AUDIBLE

Q11

MOP
F PROG
574 TX
574 RX
485 RX
485 TX

INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
INPUT7
INPUT8

1-2 TOP
3-4 BOTTOM

AG

TB9: ANALOG

—

GROUND

E - Audible horn
jumper

(TOP)

NO C NC

TB3, TB4, TB5
OUTPUT RELAY

BOTTOM

RATINGS: 24V, 3A

CLASS 2 ONLY.

TOP

TB4:

(BOTTOM)

NC

NC

C

C

NO

NO

2

RELAY
OUTPUTS

(BOTTOM)

(TOP)

8

4

7

3

6

2

5

1

PFM5 PFM2

REV

TB2:
CONTACT

ASS

INPUTS

TB1

EPOP INPUT

EPOP

P19

EPOP

DIS EN

TB1: EPOP
CONTACT
INPUT

TB1, TB2 INPUTS:
DRY CONTACTS ONLY.

(BOTTOM)

(TOP)

8

4

7

3

6

2

5

1

R - Analog
input
connectors

Q - Analog
ground
connector

Introduction

F - Common
Alarm
connectors

G - Digital output
status LEDs

H - Control relay
outputs

I - Manual
Override Switch
(outputs)

J - Digital out­put connectors

K - Status LEDs

L - Digital output
loss-of-power
jumper

M - Digital input
connectors

N - Digital input
status LEDs

O - EPOP
contact input

P - EPOP
jumper

Table 1 Controller board components

Item Description For more information, see:

A - Power On/Off
switch

B - Battery pack

C - EIA422 LEDs Indicates the connection status between the AC8 and SiteScan Web. 1.8: LED Indicators

D - Audible horn Provides audible notification when an alarm occurs. N/A

E - Audible horn
jumper

F - Common Alarm
connectors

G - Digital output
status LEDs

H - Control relay
outputs

I - Manual Override
Switch (outputs)

Power switch for the controller board. When switched off, the battery
pack is disabled.

Provides battery backup during a power loss to maintain normal
operation of the panel for a minimum of 10 minutes. The analog inputs
will not be functional during a power loss (P/N 133455P1).

2.4: Connect Power to the AC8

2.4.2: Connecting the Battery Pack

7.9.4: Connect Battery

Jumper to disable the audible horn (factory default is enabled). N/A

The two common alarm connections are used to connect to a secondary
warning device such as a horn, light or Building Management System
(BMS). When an alarm is present, the contacts close and the external
warning device is activated/notified. The common alarm contacts may
be configured to be reset with the Silence button/command.

Each output has an LED to indicate its status: ON/OFF (energized/de­energized).

Each of the two output connections is a two-state point: ON/OFF
(energized/de-energized). Digital and analog inputs may be mapped to
either or both relays to trigger change in state.
An example of a control relay output point is a humidity lock-out.

Placing the switch in the ON position will turn ON, or energize, all eight
outputs simultaneously. This switch removes all automatic output control
from the AC8.

3.0: Wiring and Connections

3.4: Connecting Common Alarm

7.4: Setup System - Setup Common

1.8: LED Indicators

3.0: Wiring and Connections

3.2.4: Connecting Control Relay

5.9: View Control Status

7.11: Setup System - Setup I/O Matrix

7.12: Override Output

The factory default is OFF (outputs controlled by programming).

4

Outputs

Alarm

Outputs

Table 1 Controller board components (continued)

Item Description For more information, see:

J - Digital output
connectors

K - Status LEDs Indicates the operational status of the controller board. 1.8: LED Indicators

L - Digital output
loss-of-power
jumper

M - Digital input
connectors

N - Digital input
status LEDs

O - EPOP contact
input

P - EPOP jumper

Q - Analog ground
connector

R - Analog input
connectors

S - 12VDC/24VDC
analog input jumper

T - SiteScan Web
connector (EIA422)

U - EIA485 connector Not presently used N/A

V - Serial interface
connector (RS232/
EIA574)

W - Phone line
connector

X - Power receptacle

(Transformer Module)

Y - Power On/Off
switch (Transformer

Module)

Z - 24VAC connector
(Transformer Module)

AA - Modem On-board modem with 9600 baud rate.

BB - Modem status
LEDs

CC - DIP switch 1 DIP switch used for resetting password to default. 7.9.1: Change Password

DD - LCD connector Connection for the LCD on the enclosure door. N/A

EE - LCD contrast
adjustment

FF - Battery pack
connector

GG - 24VAC power
connector

HH - Transformer
Module

Each of the eight output connections is a two-state point: ON/OFF
(energized/de-energized).
An example of a field digital output point is an air unit On/Off control
circuit.

One of eight output jumpers. Each digital output has a jumper to set the
fail-safe position of the output point when power fails. The OFF position
makes the contact Normally Open (factory default). The ON position
makes the contact Normally Closed.
Note: The jumper position has no effect on the contact when the AC8
has power.

Each of the eight input connections is a two-state point: ON/OFF
(energized/de-energized).
An example of a field digital input point is a common alarm contact on an
air unit.

Each input has an LED to indicate its status: ON/OFF (energized/de­energized).

The emergency power operation (EPOP) input connection is a two-state
point: ON/OFF (energized/de-energized).
An example of an EPOP input point is a UPS or a generator.

Jumper to enable or disable emergency power operation (EPOP). Factory
default is disabled.

Connection for an externally powered analog sensor that needs a
reference to ground.

Each of the four input connections accepts a 4/20 mA signal.
An example of a field analog input point is a temperature sensor.

Jumper to select voltage supplied for two-wire analog sensors. The
jumper supplies all four analog input connectors with the same voltage.
Factory default is 24VDC.

Connection to monitor AC8 from Liebert’s SiteScan Web graphical
monitoring package.

Connection for laptop or video terminal. Used for configuration and
monitoring using the Service Terminal Interface. Requires a null modem
cable for connectivity
(P/N 201258P1).

Connection for phone line. Used for pager notifications, service phone
number, and configuration and monitoring using the Service Terminal
Interface. Requires an RJ11 connector.

115VAC power receptacle to power laptop during configuration and
diagnostics. Receptacle not available on 230VAC Transformer Module.

Power switch to turn power On/Off to both Transformer Module 24VAC
connectors and power receptacle.

One of the two 24VAC connectors for power (the second is also on the
right side of the Transformer Module near the top). Each connector is
rated for 40VA.

Indicates the operational status of the modem. 1.8: LED Indicators

Adjustment contrast for the LCD on the enclosure door. N/A

Connection for battery pack lead. 2.4.2: Connecting the Battery Pack

Power connection for the controller. Requires 24VAC. 2.4: Connect Power to the AC8

Transformer Module used to convert 115VAC or 230VAC to 24VAC. 2.4.1: Termination and Mounting

3.0: Wiring and Connections

3.2.2: Connecting Digital Outputs

5.6: View Output Status

7.7: Setup System - Setup Outputs

3.2.3: Setting the Digital Output
Jumpers

7.7.5: Configure Output for Loss of
Power (“Fail-Safe”)

3.0: Wiring and Connections

3.2.1: Connecting Digital Inputs

5.5: View Input Status

7.3: Setup System - Setup Inputs

1.8: LED Indicators

3.0: Wiring and Connections

3.2.5: Connecting the Emergency
Power Operation (EPOP) Input

3.2.6: Setting the EPOP Jumper

3.3.2: Connecting the Analog Ground

3.0: Wiring and Connections

3.3: Connecting Analog Inputs

5.5: View Input Status

7.5: Setup System - Setup Sensor

3.3.1: Setting the 12VDC/24VDC
Analog Power Jumper

3.0: Wiring and Connections

3.5: EIA422 SiteScan Web
Connector

3.6.1: RS232 Connector

A.2: Connecting to the Service

Terminal Interface

3.6.2: Phone Line Connector

7.8: Setup System - Setup Modem &
Pagers

7.9.6: Setup Serv Ph Num - Enter
Phone Number

A.2: Connecting to the Service

Terminal Interface

2.4.1: Termination and Mounting

3.0: Wiring and Connections

2.4.1: Termination and Mounting

3.0: Wiring and Connections

2.4.1: Termination and Mounting

3.0: Wiring and Connections

7.8: Setup System - Setup Modem &
Pagers

Introduction

5

1.8 LED Indicators

BAR CODE

The AC8’s controller board has LED indicators that show the status of inputs, outputs and the com­mon alarm, as well as the modem, SiteScan Web and EPOP connections.

Introduction

EIA422

EIA422

SS Web

EPOP

SiteScan Web

& EPOP

LEDs

DS50

DS49

DS68

Modem LEDs

MODEM

DS77 TX
DS76 RX
DS74 DTR
DS75 DCD

TB7:

START

24V INPUT

P23:
BATTERY

ON

BATTERY

LCD
CONTRAST

VBATT

J11: PHONE

PIN 3-TIP
PIN 4-RING

BAR CODE

LIEBERT

TP1

GND

ON

ON

DIP

S2

1

2345678

OFF

DS83

CAN TX

DS84

CAN RX

MODEM

MODEM

485

(TOP)

—

+

422

(BOTTOM)

—

+

TB5: COMMON ALARM

RELAY OUTPUTS

(TOP)

NO C NC

NO C NC

LS1

+

ENABLE

P11

AUDIBLE

Q11

OUTPUT1

DS56

OUTPUT2

DS54

OUTPUT3

DS63

OUTPUT4

DS61

OUTPUT5

DS60

OUTPUT6

DS62

OUTPUT7

DS55

OUTPUT8

DS57

CTRLLOCK

DS59

SENLOCK

DS58

CMN ALR

DS53

MOP
F PROG
574 TX
574 RX
485 RX
485 TX

INPUT1
INPUT2
INPUT3
INPUT4

DS70

INPUT5

DS67

INPUT6

DS66

INPUT7

DS65

INPUT8

DS64

R334

C71

1-2 TOP
3-4 BOTTOM

——

+ +

AG

TB9: ANALOG

—

+—+

GROUND

BOTTOM

TOP

PFM5 PFM2

TB1

EPOP INPUT

EPOP

P19

EPOP

DIS EN

TB1, TB2 INPUTS:
DRY CONTACTS ONLY.

TB3, TB4, TB5
OUTPUT RELAY

RATINGS: 24V, 3A

CLASS 2 ONLY.

RELAY
OUTPUTS

(TOP)

4

3

2

1

(TOP)

REV

4

3

2

1

TB2:
CONTACT

ASS

INPUTS

TB1: EPOP
CONTACT
INPUT

TB4:

(BOTTOM)

NC

NC

C

C

NO

NO

2

(BOTTOM)

8

7

6

5

(BOTTOM)

8

7

6

5

Table 2 LED indicators summary

LED Type LED Color Description

EIA422

LEDs

EPOP LED

Modem

LEDs

Output

LEDs

Status

LEDs

Input

LEDs

422 TX Green AC8 is transmitting information over the EIA422 port

422 RX Green AC8 is receiving information over the EIA422 port

EPOP IN Red Indicates Emergency Power Operation is open or in alarm

TX Green AC8 is transmitting information via the modem

RX Green AC8 is receiving information via the modem

DTR Green Indicates data terminal is ready (DTR)—lights up when modem is dialing

DCD Green Indicates data carrier is detected (DCD)—lights up when modem has connection

OUTPUT1 Green Indicates output is ON or energized

OUTPUT2 Green Indicates output is ON or energized

OUTPUT3 Green Indicates output is ON or energized

OUTPUT4 Green Indicates output is ON or energized

OUTPUT5 Green Indicates output is ON or energized

OUTPUT6 Green Indicates output is ON or energized

OUTPUT7 Green Indicates output is ON or energized

OUTPUT8 Green Indicates output is ON or energized

CTRLLOCK Green Indicates Control Relay 2 is ON or energized

SENLOCK Green Indicates Control Relay 1 is ON or energized

CMN ALR Green Indicates Common Alarm Relay is ON or energized

MOP Green

Indicates the microprocessor is operating properly (MOP)—must be on before AC8
will function

FPROG Green Indicates firmware is being upgraded—lights up during upgrade process

574 TX or 232 TX Green AC8 is transmitting information via the RS232 port

574 RX or 232 RX Green AC8 is receiving information via the RS232 port

485 RX Green Not used

485 TX Green Not used

INPUT1 Red Indicates input is ON or energized

INPUT2 Red Indicates input is ON or energized

INPUT3 Red Indicates input is ON or energized

INPUT4 Red Indicates input is ON or energized

INPUT5 Red Indicates input is ON or energized

INPUT6 Red Indicates input is ON or energized

INPUT7 Red Indicates input is ON or energized

INPUT8 Red Indicates input is ON or energized

DS56

DS54
DS63

DS61
DS60
DS62
DS55
DS57

DS59
DS58

DS53

DS51
DS48

DS47
DS78

DS52

DS79

DS69

DS71

DS72
DS70
DS67
DS66
DS65
DS64

OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
OUTPUT6
OUTPUT7
OUTPUT8

CTRLLOCK
SENLOCK
CMN ALR

MOP
F PROG

574 TX
574 RX
485 RX
485 TX

INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
INPUT7
INPUT8

Output LEDs

CTRLLOCK

Control Relay 2

SENLOCK

Control Relay 1

CMN ALR

Common Alarm

Status
LEDs

Input LEDs

6

1.9 Typical Sequence

ESC

ESC

Figure 4 shows a typical sequence of how the AC8 functions after detecting a change in a monitored
device. Many responses depend on configuration settings. This example shows what happens when a
digital input changes state—assuming the input is defined as alarmable—and when the condition
returns to normal.

Figure 4 Example of typical sequence

RESPONSES TO AN ALARM RETURN-TO-NORMAL SEQUENCE

Introduction

ALARM CONDITION DETECTED

A device connected to the AC8
changes state.

RETURN TO NORMAL

The device that triggered the alarm
returns to its normal state.

The alarm is cleared

The horn sounds (audible horn on

the controller board—silence horn by
pressing any key on the LCD keypad)

(automatically if Unlatched; must be
cleared manually if Latched)

The horn stops sounding

(if user hasn’t silenced it)

UNIVERSAL MONITOR

05-SEP-02 14:04:13

V5.100.0

PRESS =STATUS/SETUP

ESC

The LCD flashes

(except during setup)

UNIVERSAL MONITOR

05-SEP-02 14:04:13

V5.100.0

PRESS =STATUS/SETUP

ESC

Pager numbers are dialed

(up to four configured pagers)

Service number is dialed

The LCD stops flashing

Pager numbers & service
number are dialed

Return-to-normal message sent

(if configured)

User setup determines output
control (for example, the device

in alarm might be disabled and a
standby device set to operate)

DEVICE_1 ALARM
CONTACT CLOSED
30-SEP-04 16:23:04

DEVICE_1 ALARM
CONTACT CLOSED

DEVICE_4 STARTED
30-SEP-04 16:23:10

Entry in Alarm Log

Condition (
& state (

ALARM)

CONTACT CLOSED)

Entry in Active Alarm Log

Condition (
& state (

ALARM)

CONTACT CLOSED)

Entry in Event Log

Status change
(DEVICE_4 STARTED)

ALARMS CLEARED
30-SEP-04 16:24:04

DEVICE_1 STARTED
DEVICE_2 STARTED
DEVICE_3 STARTED
DEVICE_4 OFF
30-SEP-04 16:24:06

Entry in Alarm Log

ALARMS CLEARED)

(

Entry in Event Log

Actions in response to event
(DEVICE_1 STARTED,

DEVICE_4 OFF

)

7

2.0 INSTALLATION

This section provides instructions for installing, mounting and connecting power to the AC8.

2.1 Installation Considerations

The AC8 must be installed indoors and may be mounted on the surface of a wall or flush-mounted,
depending on the user’s application, the location of equipment and sensors to be monitored and the
type of wall the unit will be mounted on.

The AC8 should be mounted where it can be easily accessed. On-site personnel would access the unit
through the LCD on its front cover, service terminal connected to the RS232 port or through SiteScan.
For off-site monitoring, the AC8 should be placed near communications means such as a telephone
line connection that would permit remote access.

In addition to the communications connections, the site also must have electrical service and must
permit connecting the unit’s eight digital inputs, eight digital outputs and four analog inputs.

The wall material must be capable of supporting the weight of the AC8: see 8.0 - Specifications.

NOTE

This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.

Installation

2.1.1 Unpacking and Preliminary Inspection

• Before unpacking the AC8, inspect the shipping carton for damage or signs of mishandling, such
as gashes or holes in the carton or severely flattened corners.

• Open the shipping crates carefully. Use care to avoid puncturing the container with sharp objects
that might damage the contents.

• Inspect the AC8 and all included components for damage.

• If any damage from shipping or mishandling is observed, immediately file a damage claim with
the shipping agency and forward a copy to:

Liebert Corporation
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229

Packing Contents

Table 3 Packing manifest

Standard Components

• AC8 controller board in enclosure

• User Manual

• Keys (2) to panel door lock

• Backup Battery - installed in unit (not connected or charged)

• RS232 Configuration Cable

8

2.2 Surface-Mounting the AC8

NOTE

Removing the conduit knockouts before mounting the AC8 on the wall will ease installation
and prevent strain on the mounting hardware and wall. It is imperative to remove the
knockouts if the unit is to be flush-mounted.

After determining where to place the unit, check to ensure that you have all the hardware required to
install the panel on the surface of a wall. Obtain the needed tools and material.

Required tools

• Electric drill (if surface is too hard to drive screws without pilot holes)

• Screwdriver

• Marker to denote layout of holes

• Four screws, each #10

2.2.1 Mounting the Panel

CAUTION

!

Check building plans and other relevant documents to determine whether mounting the AC8
at the selected location might cause cutting or otherwise damaging electrical or
communication wiring or pipes.

1. Mark the wall for mounting holes, using the back of the unit as a template (see Figure 5).

2. Drill holes, if required, to install the four #10 screws that will secure the AC8 to the wall. Clean
up the debris.

3. If the wall material is not strong enough to hold the screws securely, use wall anchors.

4. Install the top two screws—the screw heads must be small enough to slip through the larger,
bottom portion of the pear-shaped mounting slot in the AC8 (see inset in Figure 5). The screws
must also be large enough to extend over the edges of the top of the mounting slot.

5. Hang the AC8 on the screws, letting the panel slip down until the screws are in the smaller, upper
portion of the slot.

6. Tighten the screws until they are snug.

7. Insert the remaining two screws in the bottom holes on the back of the panel and tighten.

Installation

Figure 5 Mounting dimensions

Mounting Slot

ENCLOSURE

12"

(304.8mm)

0.213"

(5.4mm)

16"

(406.4mm)

AC8

back plate

0.375"

(9.6mm)

0.213" (5.4mm)

Bottom hole diameter

9

2.3 Flush-Mounting the AC8

NOTE

Removing the conduit knockouts before mounting the AC8 on the wall will ease installation
and prevent strain on the mounting hardware and wall. It is imperative to remove the
knockouts if the unit is to be flush-mounted.

The rectangular access doors on the top and bottom of the AC8 must be reversed so they slide
the opposite direction. Leaving the doors as shipped from the factory prevents them from being
opened when the panel is flush mounted in a wall.

The AC8 may be flush-mounted according to company practices—either with screws through the sides
of the panel into wall supports or with hanging hardware that attaches to the back of the panel. After
determining how and where to place the unit, check to ensure that you have all the hardware
required to install the panel in the wall. Obtain the needed tools.

Required tools

•Saw

• Electric drill

• Screwdriver

• Marker to denote layout of the hole to accommodate the AC8

• Mounting hardware

2.3.1 Mounting the Panel

Installation

CAUTION

!

Check building plans and other relevant documents to determine whether mounting the AC8
at the selected location might cause cutting or otherwise damaging electrical or
communication wiring or pipes.

1. Mark the wall for the cutout to accommodate the panel, using the back of the unit as a template.

2. Drill a pilot hole for the saw blade, if required.

3. Use the saw to cut out the marked section of the wall (if not new construction).

4. Rest the AC8 in the wall and mark where mounting screws will be inserted into the wall studs or
other support member.

5. Remove the panel and drill the holes for the mounting screws or wall anchors. Clean up the
debris.

6. Reverse the slide direction of the rectangular access doors on the top and bottom of the AC8.
Leaving the doors as shipped from the factory prevents them from being opened when the panel is
flush mounted in a wall.

7. Attach any field-supplied mounting hardware.

8. Reinsert the assembly into the wall.

9. Insert and tighten the screws or wall anchors.

10

2.4 Connect Power to the AC8

The AC8 must be supplied with 115VAC or 230VAC; the power supplied must match the rating of the
unit’s Transformer Module. For information, consult your local dealer, Liebert representative or the
Liebert Worldwide Support Group.

The AC8 must be installed on a branch circuit protected by a certified 15A overcurrent device.

WARNING

!

Check that power is removed from wires prior to installation.

CAUTION

!

The AC8 is designed for use on properly grounded (earthed) 115VAC or 230VAC power, 60Hz
or 50Hz. The ground wire for the power lead must be wired to the earth ground terminal (stud
located next to the 24VAC terminal block).

This equipment is intended to be installed by a qualified and certified electrician who must
review and approve customer supplied wiring and circuit breakers, verify correct input and
grounded (earthed) connections to ensure compliance with technical standards and national
and local electrical codes.

WARNING

!

Be sure that the Power On/Off switch is set to OFF before installing any wiring to this unit.
The switch is in the top left corner of the unit, just below the battery pack.

2.4.1 Termination and Mounting

Installation

WARNING

!

Be sure that the Power On/Off switch is set to OFF before installing any wiring to this unit.
The switch is at the bottom of the unit.

Input Power Connections

To connect electrical power to the Transformer Module:

1. Install electrical wiring from utility power to the Transformer Module.

2. Use copper wires only; proper wiring to use for power is 14/2 AWG copper wire with ground.

3. For the TM230 only: strip wires 3/8" (9.6mm).
Note: For the TM115, wires are pre-stripped 0.4" (10.2mm) at the factory.

4. Connect the wiring as follows:

TM115 TM230 Connection Type

White wire Neutral (L2) Neutral

Black wire Line (L1) Power (Line)

Green wire Ground lead Ground

5. Secure the incoming electrical service wires to the TM115 input wires with wire nuts as shown in
Figure 6 or to the TM230 connectors as shown in Figure 7.

11

Installation

24 VAC Output Power Connections

To connect to the 24VAC outputs:

1. Install electrical wiring from device requiring 24VAC power to the Transformer Module.

2. Use copper wire only; proper wiring to use for power is 18, 20 or 22 AWG copper wire. Strip
wire 1/4".

3. There are two 24 VAC output connectors (TB1 and TB2). Terminate wires to the connector as
shown in Figures 6 and 7. TB1 and TB2 are NOT polarity sensitive.

4. Secure the wires to the connector.

Figure 6 Power wiring to TM115 Figure 7 Power wiring to TM230

TM115

Wire nuts
connecting
electrical
wiring

Troubleshooting - Transformer Module

A common problem and possible solution are shown in the table below. For further information or if
you have other problems with the unit, consult your local dealer, Liebert representative or the Liebert
Worldwide Support Group.

Problem Possible Solution Replacement Fuse Part Numbers

24VAC power

not available

from TB1 or TB2

Check fuse for respective

output (TB1 or TB2).

2.4.2 Connecting the Battery Pack

Before connecting input power to the AC8, connect
the panel’s backup battery (factory-supplied) to the
jumpers so it will begin charging when electrical
power to the AC8 is switched on.

Knockout for
external wiring

Ground

24VAC output
(TB1)

• LITTLEFUSE 218002

or

• BUSSMANN GDC-2A

TM230

Neutral
(L2)

Knockout for
external wiring

Ground

Line (L1)

24VAC output
(TB1)

Battery pack

NOTE

If the battery is not hooked up BEFORE the
AC8 is switched on, it will trigger an alarm.

To connect the battery pack, insert the battery
leads into the jumpers as shown at right.
(To disconnect the battery pack, remove the
battery leads from the jumpers.)

Obtaining a Replacement Battery Pack

To obtain a replacement battery pack, contact your
local dealer or Liebert representative. The Liebert
part number is 133455P1.

WARNING

!

To prevent the risk of fire or explosion, replace only with 7.2 V rechargeable NiCad battery pack.

CAUTION

!

Dispose of the battery properly by sending it back to Liebert Corporation or an approved
battery recycling facility.

2.4.3 Turning On the AC8

After connecting the backup battery, turn on the power On/Off switches to the AC8 and the Trans­former Module (see 1.7 - Controller Board Overview for location of switches).

Battery pack connector

12

Wiring and Connections

3.0 WIRING AND CONNECTIONS

CAUTION

!

Switch OFF electric power to the AC8 before installing any wiring to the unit or changing
input or output connections. The Power On/Off switch is in the top left corner of the unit, just
below the battery pack.

3.1 Wiring Specifications

Input and output connections to the AC8 may be made in any order—it is not necessary, for example,
to make all input connections before making any output connections. Use copper conductors only for
all wiring.

Table 4 Wiring specifications

Connection Supported Wire Type Maximum Wire Length Rating

Digital

Input/
EPOP

Digital
Output/
Control

Relay

Analog Input

2-Wire

Transducer

Analog Input

4-Wire

Transducer

Common

Alarm

Output

Communication

RS232

Communication

EIA422

SiteScan

Communication

EIA485

Phone/Modem

Line

24VAC Power

Connection

(TB7)

Power Connections (Transformer Module)

115VAC

230VAC

* Recommended

18-22 AWG Stranded & Unshielded

18 AWG* (recommended)

Non Plenum - Belden 9740
Plenum - Belden 89740

18-22 AWG Stranded & Unshielded

18 AWG* (recommended)

Non Plenum - Belden 9740
Plenum - Belden 89740

18-22 AWG Stranded & Unshielded

18 AWG* (recommended)

Non Plenum - Belden 9740
Plenum - Belden 89740

18-22 AWG Stranded & Unshielded

18 AWG* (recommended)

Non Plenum - Belden 8489
Plenum - Belden 88489

18-22 AWG Stranded & Unshielded

18 AWG* (recommended)

Non Plenum - Belden 9740
Plenum - Belden 89740

Null Modem Cable 50 ft. (15m) N/A

18-22 AWG Stranded & Shielded

22 AWG* (recommended)

Non Plenum - Belden 9461
Plenum - Belden 88761

18-22 AWG Stranded & Shielded

22 AWG* (recommended)

Non Plenum - Belden 9461
Plenum - Belden 88761

4 Wire (Pins 3 & 4)
RJ11 Connector

18-22 AWG Stranded & Shielded

18 AWG* (recommended)

Non Plenum - Belden 8770
Plenum - Belden 88770

14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE

14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE

18 AWG*

(recommended)

@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)

18 AWG*

(recommended)

@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)

750 ft. (225m)

20 AWG 22 AWG

@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)

750 ft. (225m)

750 ft. (225m)

20 AWG 22 AWG

@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)

1000 ft. (300m) N/A

3000 ft. (900m) N/A

N/A N/A

150 ft. (45m)

150 ft. (45m)

150 ft. (45m)

@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)

@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)

Dry Contact

24VAC@3A

4-20 mA Signal

Input Selectable

Power Source

(12/24VDC)

4-20 mA Signal

Input Selectable

Power Source

(12/24VDC)

(24VDC,

10 mA)

24VAC

@3A

24VAC
@1.3A

115VAC

@4A

230VAC

@0.5A

13

3.2 Connecting Digital Inputs and Digital Outputs

The digital inputs, digital outputs and control relay outputs are found on the right side of the AC8’s
printed wiring assembly board. Each set has two terminal blocks—one green, the other black:

• Digital inputs: two terminal blocks, with four inputs per block (8 inputs total)

• Digital outputs: two terminal blocks, with four outputs per block (8 outputs total)

• Control relay outputs: two terminal blocks, with one output per block (2 outputs total)

Each input is tied to an output with the same number:

• Input 1 is tied to Output 1 (default name: Device_1)

• Input 2 is tied to Output 2 (default name: Device_2)

• Input 3 is tied to Output 3 (default name: Device_3)

.
.
.

• Input 8 is tied to Output 8 (default name: Device_8)

Up to eight devices may be connected to the AC8. Each device must be connected to an input and an
output with the same number.

To determine the proper wire size, see Table 4 - Wiring specifications.

NOTE

Each terminal block is a removable, two-part assembly to permit easier connection of more
than one input at a time. If making multiple connections, grasp the upper portion of a block
and pull firmly to the right until the assembly pulls apart.

After making the connections, push the removed piece back into the portion attached to the
printed wiring assembly until the terminal block pieces lock together.

Wiring and Connections

Connecting Liebert Environmental Units

For Liebert environmental units, follow these steps (be sure to connect the same device to inputs and
outputs with the same number—one device to Input 1 and Output 1, another to Input 2 and Output 2,
and so on):

• Connect a digital input from the AC8 to the Common Alarm Relay of the environmental unit:
terminals 75/76 or TB1-6, TB1-7.

• Connect a digital output (numbered the same as the input) from the AC8 to the Remote Shutdown
(Power Control) of the environmental unit: terminal 37/38 or TB1-4, TB1-5.

3.2.1 Connecting Digital Inputs

To connect a digital input:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout
to permit wire entry into the AC8
enclosure.

3. Bring the wire(s) into the AC8 enclosure
through a conduit knockout or access slot.

4. Loosen the appropriate screw and slip the
stripped end of the wire into the terminal
block.

5. Tighten the screw until it holds the wire
snugly.

NOTE

Connect digital inputs to
nonpowered (dry) contacts only.

PFM2

PFM5

TB1

EPOP INPUT

EPOP

RELAY
OUTPUTS

(TOP)

4

3

2

1

(TOP)

REV

4

3

2

1

TB2:
CONTACT

ASS

INPUTS

(BOTTOM)

8

7

6

5

(BOTTOM)

8

7

6

5

NUMBERING KEYS ­Note numbering begins
with 1 at the bottom and
proceeds up to 4 (green);
and 5 up to 8 (black)

DIGITAL INPUT
TERMINAL BLOCKS

14

Wiring and Connections

F

M

3.2.2 Connecting Digital Outputs

To connect a digital output:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to
permit wire entry into the AC8 enclosure.

3. Bring the wire(s) into the AC8 enclosure
through a conduit knockout or access slot.

4. Loosen the appropriate screw and slip the
stripped end of the wire into the terminal
block.

5. Tighten the screw until it holds the wire
snugly.

CAUTION

!

To reduce the risk of fire or electric
shock, do not interconnect the outputs
of different Class 2 circuits.

3.2.3 Setting the Digital Output Jumpers

Each digital output has an associated jumper to define its operation when power is interrupted and
there is no battery backup to the board. This puts the AC8 in a fail-safe mode and ensures proper
functioning when the board has no power or battery backup.

P

RELAY
OUTPUTS

(BOTTOM)

(TOP)

8

4

7

3

6

2

REV

1

(TOP)

4

3

2

1

5

(BOTTOM)

8

7

6

5

PFM2

PFM5

DIGITAL OUTPUT
TERMINAL BLOCKS

NUMBERING KEYS ­Note numbering begins
with 1 at the bottom and
proceeds up to 4 (green);
and 5 up to 8 (black)

The AC8 comes from the factory with all digital output jumpers in the OFF position (Normally Open).
The jumper setting for each digital output can be changed to ON (Normally Closed). The settings are
shown in Table 5.

Table 5 Digital output jumper settings

Setting

(power loss & no battery backup)

OFF Normally Open

ON Normally Closed

Output status

To change the output jumper setting:

1. Find the respective black output jumper on
the circuit board, shown in the illustration,
using the following guide.

Jumper Associated output

PFM1 Output 1

PFM2 Output 2

PFM3 Output 3

PFM4 Output 4

PFM5 Output 5

PFM6 Output 6

PFM7 Output 7

PFM8 Output 8

2. Decide whether your configuration requires

Digital output jumpers

Digital output jumpers

TB4:

(BOTTO

NC

NC

C

C

PFM8

FF

PFM3

NO

NO

2

RELAY
OUTPUTS

(BOTTOM)

(TOP)

8

4

7

3

6

2

REV

1

(TOP)

4

3

2

5

(BOTTOM)

8

7

6

PFM2

PFM5

the jumper to be OFF or ON.

3. Set the jumper as needed:

• Set the jumper to OFF by placing the black jumper on the middle and top pins.

• Set the jumper to ON by placing the black jumper on the middle and bottom pins.

15

3.2.4 Connecting Control Relay Outputs

5

F

To connect a control relay output:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to
permit wire entry into the AC8 enclosure.

3. Bring the wire(s) into the AC8 enclosure
through a conduit knockout or access slot.

4. Loosen the appropriate screw and slip the

PFM8

FF

PFM3

stripped end of the wire into the terminal
block.

5. Tighten the screw until it holds the wire
snugly.

CAUTION

!

To reduce the risk of fire or electric shock, do not interconnect the outputs of different Class 2

RELAY
OUTPUTS

(TOP)

circuits.

3.2.5 Connecting the Emergency Power Operation (EPOP) Input

The emergency power operation, or EPOP, input connector block (TB1) is at the bottom right corner of
the AC8 printed circuit board, just below the digital inputs.

To determine the proper wire size, see Table 4 - Wiring specifications.

To connect to the EPOP input:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to permit
wire entry into the AC8 enclosure.

3. Bring the wire into the AC8 enclosure through a
conduit knockout or access slot.

4. Loosen each screw and slip the stripped end of the
wire into the terminal block.

5. Tighten each screw until it holds the wire snugly.

3.2.6 Setting the EPOP Jumper

The EPOP contact input has an associated jumper to
enable or disable emergency power operation (EPOP).

The AC8 comes from the factory with the EPOP jumper in
the Disabled position (DIS); it may be changed to Enabled
(EN).

To change the EPOP jumper setting:

1. Find the black EPOP jumper on the circuit board, as
shown at right. The jumper is at the bottom right
corner of the board just below the EPOP contact input
(see 1.7 - Controller Board Overview).

2. Decide whether your configuration requires the jumper to be enabled or disabled.

3. Set the jumper as needed:

• To enable EPOP, place the black jumper on the middle and right pins. The right side of the

EPOP
jumper

jumper is labeled EN for Enabled.

TB4:

NC

C

NO

(BOTTOM)

(BOTTOM)

NC

C

NO

2

Wiring and Connections

RELAY OUTPUT
TERMINAL BLOCKS

NUMBERING KEYS ­Relay 1 at left (green);
Relay 2 at right (black)

P

PFM5

REV

1

(TOP)

4

3

2

1

TB2:
CONTACT

ASS

INPUTS

TB1

EPOP INPUT

EPOP

P19

EPOP

DIS EN

TB1, TB2 INPUTS:
DRY CONTACTS ONLY.

TB1: EPOP
CONTACT
INPUT

EPOP
input

(BOTTOM)

8

7

6

5

NOTE

When the EPOP jumper is set to Enabled, a Normally Closed contact must be attached or an
alarm will be generated and the outputs will default to the EPOP operation setting.

• To disable EPOP, place the black jumper on the middle and left pins. The left side of the
jumper is labeled DIS for Disabled.

16

3.3 Connecting Analog Inputs

The analog input connector blocks are at the bottom center of the AC8 printed circuit board, as shown
below right. The blocks are two-part assemblies to permit easier connections. To determine the proper
wire size, see Table 4 - Wiring specifications.

To connect an input:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to permit wire entry into the AC8 enclosure.

3. Bring the wire(s) into the AC8 enclosure through a
conduit knockout or access slot.

4. Loosen the appropriate screw and slip the stripped
end of the wire into the terminal block.

5. Tighten the screw until it holds the wire snugly.

3.3.1 Setting the 12VDC/24VDC Analog Power Jumper

The analog power jumper sets the common voltage
that is applied to all of the analog input connections.
The jumper permits the user to modify the voltage
supplied to the sensors, according to the power
requirements.

The factory default position is 24VDC; it may be
changed to 12VDC.

To change the analog power jumper setting:

1. Find the black analog jumper on the circuit board,
as shown at right. The jumper is at the bottom of
the board near the middle (see 1.7 - Controller
Board Overview).

2. Decide whether your configuration requires the jumper to be 24VDC or 12VDC.

3. Set the jumper as needed:

• To set the jumper to the 24VDC position, place the black jumper on the middle and right pins.

• To set the jumper to the 12VDC position, place the black jumper on the middle and left pins.

Analog
power
jumper

485

—

+

422

M)

+

—

Analog
inputs

——

+ +

+—+

Wiring and Connections

Analog
ground

1-2 TOP
3-4 BOTTOM

AG

—

TB9: ANALOG
GROUND

3.3.2 Connecting the Analog Ground

The AC8 features an analog ground connection
for four-wire sensors that have an external
power source. Such a four-wire sensor requires
a reference to ground because they get power
from an external power source.

A two-wire transducer, which does not have an
external power source, does not need to be
connected to the analog ground.

The analog ground connector has two
terminals, each of which can accommodate two
wires. This is adequate to connect four sensors
that require a reference to ground because they
get power from an external power source.

Connect the analog ground to an external
four-wire sensor, as shown in the illustration at
right.

TB10: COMMS

Four-wire
transducer

Sensor
with
external
power

(TOP)

(BOTTOM)

+

+

+

4/20mA

Output

Analog
input

—

24V Input

1-2 TOP
3-4 BOTTOM

+

—

Analog
ground

TB9: ANALOG
GROUND

24V from
external
power
source

17

3.4 Connecting Common Alarm Outputs

T

P

)

(

T
E
4

N

11

M

S

8

+

TB10: COMMS

4

The common alarm relay, found in the top right corner of the
AC8, permits the user to connect auxiliary notification
equipment, such as lights, horns and sirens, to the AC8. To
determine the proper wire size, see Table 4 - Wiring
specifications.

There are two connectors for the common alarm output. However,
the connectors are not individual relay outputs. The connectors
should be treated as a double-pole, double-throw (DPDT) relay.

The common alarm relay is energized whenever an alarm occurs.

To connect an output:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to permit wire entry
into the AC8 enclosure.

3. Bring the wire(s) into the AC8 enclosure through a conduit
knockout or access slot.

4. Loosen the appropriate screw and slip the stripped end of the wire into the terminal block.

5. Tighten the screw until it holds the wire snugly.

3.5 EIA422 SiteScan Web Connector

The AC8 will interface with Liebert’s SiteScan Web enterprise monitoring
system. SiteScan can be used to monitor analog and digital equipment from
a host computer and also to perform some configuration.

To connect the SiteScan host computer to the AC8:

1. Turn OFF electrical power to the AC8.

2. If necessary, remove a conduit knockout to permit wire entry into the
AC8 enclosure.

3. Bring the wire(s) into the AC8 enclosure through a conduit knockout or
access slot.

4. Loosen the appropriate screw and slip the stripped end of the wire into
the terminal block.

5. Tighten the screw until it holds the wire snugly.

3.6 Communications Connections

The AC8’s Service Terminal Interface offers full configuration
and monitoring capability via the RS232 port and the phone
line connector (see A.2 - Connecting to the Service
Terminal Interface). The phone line connector is also used
for pager notifications and service phone number options.

Wiring and Connections

TB5: COMMON ALARM

RELAY OUTPUTS

ON ALAR

NO C NC

BOTTOM

TOP

NO C NC

ENABLE

P

AUDIBLE

Q11

Common alarm outputs

TB10: COMM

EIA422 SiteScan Web
connector

Serial interface connector
(RS232/EIA574)

(TOP)

(TOP)

(BOTTOM)

TB3, TB4,
OUTPUT R

RATINGS: 2

CLASS 2 O

—

+

422

—

+

TB4:

NC

C

NO

N

T

P

3.6.1 RS232 Connector

The RS232 port requires a null modem cable.

• Connect one end of the cable to the AC8’s RS232 port, as
shown at right.

• Connect the other end to the COM1 port of a laptop
computer or video terminal.

3.6.2 Phone Line Connector

The Phone Line Connector requires an RJ11 connector.

• Connect one end of the connector to the AC8’s phone line
connector, shown at right.

• Connect the other end to a telephone wall jack.

18

RJ11: PHONE

PIN 3-TIP
PIN 4-RING

MODEM

Phone line connector

(TOP)

(BOTTOM)

4

+

Overview of Menus

4.0 OVERVIEW OF MENUS

There are two ways to access the AC8: the LCD on the front of the enclosure and the Service Terminal
Interface, which is accessible through any computer using a communications program. Many viewing
and configuration tasks can be performed through either interface, but some are available only
through the Service Terminal Interface.

• Step-by-step instructions for all functions appear in Sections 5.0 through 7.0. These instructions
use examples of LCD screens to illustrate most functions, except those not available via the LCD.

• Examples of all Service Terminal Interface screens appear in Appendix A - Service Terminal

Interface, along with instructions on how to connect to the Service Terminal Interface.

Table 6 lists all AC8 functions and shows whether they can be performed through the LCD interface

and where to find information.

Table 6 Guide to AC8 functions

Can be performed via: Where to find:

Function

VIEW STATUS FUNCTIONS

View Active Alarms ✔✔ page 22 page 85
View Alarm Log ✔✔ page 23 page 86
View Event Log ✔✔ page 24 page 87
View Trend Log ✔✔ page 25 page 88
View Input Status ✔✔ page 26 page 89
View Output Status ✔✔ page 27 page 89
View Pager Numbers ✔✔ page 28 page 90
View Operation ✔✔ page 29 page 91
View Control Status ✔✔ page 28 page 91

SILENCE ALARM & BACK UP LOGS FUNCTIONS

Silence Alarm (On the LCD, press any key to silence an alarm) ✔✔ page 31 page 92
Back Up Log Files — ✔ page 32 page 93

SYSTEM & CONTROL FUNCTIONS

Login ✔✔ page 34 page 95
Setup System ✔✔ page 36 page 96

Setup Inputs ✔✔ page 36 page 97
Setup Common Alarm ✔✔ page 39 page 97
Setup Sensor ✔✔ page 40 page 98
Setup Zones ✔✔ page 46 page 116
Setup Outputs ✔✔ page 47 page 99
Setup Modem & Pagers ✔✔ page 49 page 100

Initialization String ✔✔ page 49 page 101

Modem
Setup

Pager
Setup

Setup System Info ✔✔ page 57 page 102

Change Password ✔✔ page 58 page 102
Change Date & Time/Automatic Daylight Saving Time ✔✔ page 58 page 103
Setup Site ID ✔✔ page 59 page 103
Connect Battery ✔✔ page 59 page 103
Backup and Upload Configuration File — ✔ page 60 page 104
Setup Serv Ph Num - Enter Phone Number ✔✔ page 63 page 105
Setup Serv Ph Num - Communications Check — ✔ page 64 page 105
Factory Defaults ✔✔ page 65 page 105
Perform Firmware Update — ✔ page 65 page 106

Initiate Remote Alarm Test — ✔ page 67 page 106
Setup Operation ✔✔ page 68 page 107
Setup I/O Matrix ✔✔ page 73 page 116

Override Output ✔✔ page 75 page 113
Clear Alarms & Logs ✔✔ page 76 page 114

Clear Active Alarms ✔✔ page 76 page 114
Clear the Alarm Log ✔✔ page 76 page 114
Clear the Event Log ✔✔ page 77 page 115
Clear the Trend Logs ✔✔ page 77 page 115

Enter AC8 Phone Number — ✔ page 51 page 101
Enable Modem Diagnostic Messages — ✔ page 51 page 101
Change Modem Dial Prefix — ✔ page 51 page 101
Change Modem Hang Up Delay After a Call — ✔ page 51 page 101
Pager Number & PIN ✔✔ page 53 page 100
Communications Check — ✔ page 55 page 100

LCD

Service

Terminal

Instructions on

using function

Service Terminal
screen examples

19

4.1 Opening Screen Overview

The AC8 displays the Opening Screen at startup, as shown in Figure 8.

• If any alarms are active, the Current Alarm screen appears. (Pressing any key on the LCD keypad
will silence the audible alarm.)

• If any analog input sensors are connected, the LCD screen will alternately display the Opening
Screen and a screen showing the analog value of each sensor.

If no alarms are present, the Main Menu appears.

4.2 Main Menu Overview

The Main Menu offers access to all functions within the panel. As shown in Table 7, the functions are
organized into three sections with step-by-step instructions.

Table 7 Primary functions overview

Section Description

These features are available to all users. This permits all personnel to check the

5.0 - View Status Options
(both LCD and Service
Terminal Interface)

6.0 - Silence Alarm & Backup
Log Files (Service

Terminal Interface only)

7.0 - System and Control
Options (some functions

available via Service
Terminal Interface only)

status of any monitored equipment or location. From this menu, any user may:

• View current monitoring data—active alarms and the status of inputs and outputs

• View data stored in alarm, event and trend logs

• View pager numbers

• View auto sequencing and standby testing status
These features—available via the Service Terminal Interface only—allow users to:

• Silence the audible alarm

• Back up the alarm, event and trend logs
These options require a password. Authorized users may:

• Configure the AC8

• Override automatic control of outputs to force an output ON or OFF

• Clear active alarms and delete all records in the alarm, event and trend logs

Overview of Menus

4.3 LCD Menu Overview

Figure 8 shows an overview of the initial screens available through the LCD interface. For compara­ble information about the Service Terminal Interface screens, see A.3 - Overview of Menus.

Figure 8 LCD Menu overview

“View Status” selected

> VIEW STATUS

SYSTEM AND CONTROL
↑↓=NEXT

View Status Menu

(All users - no password)

VIEW ACTIVE ALARMS
VIEW ALARM LOG
VIEW EVENT LOG
VIEW TREND LOG
VIEW INPUT STATUS
VIEW OUTPUT STATUS
VIEW PAGER NUMBERS
VIEW OPERATION
VIEW CONTROL STATUS

↵=SELECT

Opening Screen

LIEBERT AC8

DD-MON-YY HR:MM:SS

PRESS

VX.XXX.X

↵=STATUS/SETUP

Main Menu

VIEW STATUS
SYSTEM AND CONTROL

↑↓=NEXT

See Section

5.0

See Section

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

↵=SELECT

(If any alarms detected)

Current Alarm screen
(see 5.1 - View Active Alarms)

“System & Control” selected

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

System & Control Menu

(Password required)

SETUP SYSTEM
OVERRIDE OUTPUT
CLEAR ALARMS & LOGS

See Section

7.0

See Section

7.2

7.12

7.13

20

5.0 VIEW STATUS OPTIONS

NOTE

For ease of understanding, this section uses the LCD interface to illustrate most instructions,
except for features that are available only through the Service Terminal Interface. All Service
Terminal Interface screens appear in Appendix A - Service Terminal Interface.

The View Status menu allows any user to view currently active alarms, monitoring data stored in the
alarm, event and trend logs, the status of all inputs and outputs, and the four pager numbers. The
arrows

This section presents step-by-step instructions for each of the following options:

Figure 9 shows the main options available from the View Status menu.

Figure 9 Menu overview - View Status menu

↑↓ are used to scroll through the menu. The Enter ↵ key is used to select the menu item.

• View Active Alarms • View Trend Log • View Pager Numbers

• View Alarm Log • View Input Status • View Operation

• View Event Log • View Output Status • View Control Status

Opening Screen

DD-MON-YY HR:MM:SS

PRESS ↵=STATUS/SETUP

View Status Options

LIEBERT AC8

VX.XXX.X

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT ↵=SELECT

View Status

VIEW ACTIVE ALARMS
VIEW ALARM LOG
VIEW EVENT LOG
VIEW TREND LOG
VIEW INPUT STATUS
VIEW OUTPUT STATUS
VIEW PAGER NUMBERS
VIEW OPERATION
VIEW CONTROL STATUS

View Status options

View Active Alarms View Alarm Log View Event Log View Trend Log

> ACTIVE ALARM 22/22

SENSOR_1 101.0 DEG
HIGH SETPOINT ALARM

SENSOR_2 ------ DEG
SENSOR PROBLEM

DEVICE_7 ALARM
CONTACT OPEN

BATTERY
CHECK BATTERY

See
Section

5.1

> ALARM RECORD 99/99

SENSOR_2 80.0 DEG
HIGH SETPOINT ALARM
29-AUG-05 09:29:10

MODEM
INTERNAL FAULT
29-AUG-05 09:20:00

DEVICE_8 ALARM
CONTACT CLOSED
29-AUG-05 07:30:00

See
Section

5.2

> EVENT RECORD 99/99

PAGER
UNSUCCESSFUL PAGE
07-MAY-05 10:07:00

DEVICE_1 FORCE ON
CONTACT CLOSED
06-MAY-05 02:47:03

DEVICE_8 ON
CONTACT OPEN
05-MAY-05 05:22:17

See
Section

5.3

SENSOR TO VIEW?

> SENSOR_1

SENSOR_2
SENSOR_3
SENSOR_4

> TREND LOG 100/100

SENSOR_1 75.4 DEG
NORMAL
28-AUG-05 15:45:51

See
Section

5.4

View Input Status View Output Status View Pager Numbers View Operation View Control Status

INPUT / STATUS

> SENSOR_1 +80.00 DEG

SENSOR_2 ------ DEG
SENSOR_3
SENSOR_4 +79.50 RH
DEVICE_1 NORMAL
DEVICE_2 ALARM
DEVICE_3 EVENT
DEVICE_4 ALARM
DEVICE_5 ALARM
DEVICE_6 EVENT
DEVICE_7 NORMAL
DEVICE_8 NORMAL

See

OUTPUT / STATUS

Sec.

> DEVICE_1 ALARM

5.5

DEVICE_2 OPERATING
DEVICE_3 OPERATING
DEVICE_4 OPERATING
DEVICE_5 STANDBY
DEVICE_6 NOT USED
DEVICE_7 NOT USED
DEVICE_8 NOT USED

See
Sec.

> PAGER NUMBER 1

5.6

VIEW PAGER NUMBER
VIEW PAGER PIN

PAGER 1 NUMBER

9,,18005551212##

PAGER TO VIEW?

PAGER NUMBER 2
PAGER NUMBER 3
PAGER NUMBER 4

See
Sec.

5.7

PAGER 1 PIN

01234567891011121344

SELECT ZONE FOR

> ZONE 1

AUTO SEQUENCING ON
DAY 01 OF 02 (08:55)
STANDBY TESTING OFF

VIEWING

See

CONTROL STATUS

Sec.

RELAY 1 OFF

5.8

RELAY 2 OFF

See
Sec.

5.9

21

View Status Options

5.1 View Active Alarms

The Active Alarm screen displays all alarms that are occurring, up to a
maximum of 22.

A Current Alarm screen appears automatically whenever an alarm
occurs—except during setup. This screen can display only the two most
recent active alarms. To view any other active alarms, use the View
Active Alarms feature.

You may view active alarms at any time by using the following steps:

• From the Main Menu, use the arrows

shown at right, and then press Enter ↵.

• From the View Status Menu, use the arrows

Active Alarms and press Enter ↵.

5.1.1 Active Alarms

The Active Alarms screen displays up to 22 records; it shows any active
alarm and any Latched alarm that has not been cleared. Examples of
alarms include inputs in alarm status, a low battery condition and a
loss of connection to an analog input. When any alarms are present, the
Active Alarms screen shows descriptive details for each alarm:

• the source of the alarm (for example,

• the status of an input or output (

• a brief description of the problem (

BATTERY)

If there are no active alarms, the screen displays the message:

NO ALARMS PRESENT

↑↓ to choose View Status, as

↑↓ to choose View

SENSOR_1 or BATTERY)

101.0 DEG)
HIGH SETPOINT ALARM or CHECK

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

> VIEW ACTIVE ALARMS

VIEW ALARM LOG
VIEW EVENT LOG
VIEW TREND LOG

VIEW INPUT STATUS
VIEW OUTPUT STATUS
VIEW PAGER NUMBERS
VIEW OPERATION
VIEW CONTROL STATUS

Active Alarms

> ACTIVE ALARM 22/22

SENSOR_1 101.0 DEG
HIGH SETPOINT ALARM

SENSOR_2 ------ DEG
SENSOR PROBLEM

DEVICE_7 ALARM
CONTACT OPEN

BATTERY
CHECK BATTERY

Viewing Additional Screens

There may be up to 22 records of alarm data.

• To view additional records, use the arrows

↑↓.

• To return to the previous screen, press the ESC key.

Clearing Active Alarms

To clear all active alarms, see 7.13 - Clear Alarms & Logs. Alarm records are stored in the Alarm
Log.

22