Emerson AC4 User Manual

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Infrastructure Management & Monitoring For Business-Critical Continuity™

Liebert® AC4

User Manual

™

TABLE OF CONTENTS

1.0 INTRODUCTION

1.1 Methods of Viewing and Configuring the Liebert AC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

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

1.3 Available Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.4 Outside Enclosure Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.5 Typical Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.6 Controller Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.7 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.8 Typical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.0 INSTALLATION

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

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

2.2 Surface-Mounting the Liebert AC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

2.3 Flush-Mounting the Liebert AC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

2.4 Connect Power to the Liebert AC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.0 WIRING AND CONNECTIONS

3.1 Wiring Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Connecting Digital Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2.1 Connecting Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2.2 Connecting Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.3 Setting the Digital Output Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Connecting Common Alarm Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 RS232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.0 OVERVIEW OF MENUS

4.1 Opening Screen Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 Main Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.3 LCD Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.0 VIEW STATUS OPTIONS

5.1 View Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1.1 Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2 View Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.1 Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.2 Backing Up the Alarm Log (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3 View Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.1 Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.2 Backing Up the Event Log (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4 View Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.4.1 Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.5 View Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.5.1 Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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

6.1 Silence Alarm (Service Terminal Interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2 Back Up Log Files (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7.0 SYSTEM AND CONTROL OPTIONS

7.1 Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7.2 Setup System - Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.3 Setup System - Setup Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.3.1 Change Label (Name of Input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.3.2 Define Input as Normally Open or Normally Closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.3.3 Define Input as Alarmable or Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.3.4 Set Up Alarmable Inputs in Latched or Unlatched Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.3.5 Set Up Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.4 Setup System - Setup Common Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.5 Setup System - Setup Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.5.1 Set Up a Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.6 Setup System - Setup Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.6.1 Define Output as Normally Open or Normally Closed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.6.2 Define Operating or Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.6.3 Enable or Disable an Output Device in Alarm Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.6.4 Configure Output for Loss of Power (“Fail-Safe”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.7 Setup System - Setup System Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.7.1 Change Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.7.2 Set Date & Time/Automatic Daylight Saving Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.7.3 Setup Site ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.7.4 Backup and Upload Configuration File (Service Terminal Interface only) . . . . . . . . . . . . . . . 38

7.7.5 Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.7.6 Perform Firmware Update (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.8 Setup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.8.1 Turn Automatic Sequencing On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.8.2 Turn Standby Testing On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.8.3 Specify Failed Standby Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.8.4 Specify Hold Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.8.5 Specify Restart Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.9 Override Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.10 Clear Alarms & Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.10.1 Clear Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.10.2 Clear the Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.10.3 Clear the Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.0 SPECIFICATIONS

8.1 Liebert AC4 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

APPENDIX A-SERVICE TERMINAL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

A.1 Comparison of Functions: LCD and Service Terminal Interface. . . . . . . . . . . . . . . . . . . . . . 51

A.2 Connecting to the Service Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

A.2.1 Create a Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

A.2.2 Connect to the Service Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

A.3 Overview of Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.3.1 View Status Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.3.2 Silence Alarm and Backup Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.3.3 Setup Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.4 View Status Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.4.1 View Active Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A.4.2 View Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.4.3 View Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.4.4 View Input Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.4.5 View Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.5 Silence Alarm & Back Up Log Files (Service Terminal Interface only). . . . . . . . . . . . . . . . . 61

A.5.1 Silence Alarm (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

A.5.2 Back Up Log Files (Service Terminal Interface only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A.6 Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

A.6.1 Setup Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

A.6.2 Setup Common Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

A.6.3 Setup Zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

A.6.4 Setup Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

A.6.5 Setup System Info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

A.6.6 Setup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

A.6.7 Override Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

A.6.8 Clear Alarms & Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

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FIGURES

Figure 1 Liebert AC4 enclosure—external features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 2 Liebert AC4 enclosure—internal features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

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

Figure 6 Electrical connections to panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 7 LCD Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 8 Menu overview - View Status menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 9 Menu overview - System and Control menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

TABLES

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

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

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

Table 4 Wiring specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 5 Digital output jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 6 Guide to Liebert AC4 functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 7 Primary Functions Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 8 Alarm log conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 9 Event log conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 10 Digital input states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 11 Digital output states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 12 Valid characters for data entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 13 Default settings - digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 14 Input and output labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 15 Default zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 16 Possible combinations - outputs per zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 17 Default settings - digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 18 Default settings - operation features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 19 Failed Standby response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 20 Automatic / manual control - output points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 21 Guide to Liebert AC4 functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

1.0 INTRODUCTION

The Liebert AC4 is ideal for coordinated control of systems with redundant equipment, such as multiple environmental units or pumps. When the Liebert AC4 controller detects an alarm in an operating device, the Liebert AC4 enables a standby device and controls the device in alarm as configured, either leaving that device operating or disabling it.

The Liebert AC4 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 Liebert AC4 can perform routine testing of standby devices and alert personnel if a standby device fails an operating test and requires attention.

Another capability of the Liebert AC4 is monitoring the status of connected devices and keeping personnel apprised through local alarming.

The Liebert AC4 controller can interface with anything that closes an electrical contact. To improve process efficiency and troubleshooting, the controller tracks data in two types of logs: alarm and event. The Liebert AC4 has a local LCD interface and an RS232 interface.

When an alarm condition arises, the Liebert AC4 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. See 1.5 Typical Configuration for a more detailed example.

1.1 Methods of Viewing and Configuring the Liebert AC4

Introduction

The Liebert AC4 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 a computer connected directly to an RS232 port

These interfaces permit easy access and configuration of the Liebert AC4, allowing users to view data, silence alarms and have full access to information stored in the controller, including logs of alarms and events.

1.2 Data Logs

The two types of data logs—alarm history and event history—can be viewed on the LCD on the front of the Liebert AC4 or the Service Terminal Interface. The logs may also be downloaded to a computer through the Service Terminal Interface.

1.3 Available Alarms

The alarms available with the Liebert AC4 are:

• Discrete input alarm (for each digital input)

• Loss of power

• No standby available

• Standby device failed

• No restart available

1Liebert

AC4

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1.4 Outside Enclosure Overview

LCD for configuration and operation

Key lock

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

Back of LCD

Controller Board

Ground wire for LCD

Knockouts and access slots (top and bottom)

The Liebert AC4 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 Liebert AC4 enclosure—external features

Introduction

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 Liebert AC4 enclosure—internal features

Liebert® AC4

™

1.5 Typical Configuration

DEVICES CONNECTED

TO INPUTS & OUTPUTS

RS232

Liebert

Challenger

3000

™

Liebert

Himod

™

Liebert

Challenger

3000

Liebert

Himod

Zone 1 Devices

Device 1 Device 2

Zone 2 Devices

Device 3 Device 4

Figure 3 shows an example of external devices connected to the Liebert AC4 controller board. There may be up to four devices connected to the four digital inputs and four digital outputs. Remote access is available through the Service Terminal Interface.

Figure 3 Typical Configuration

Introduction

3Liebert

AC4

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1.6 Controller Board Overview

G - Digital output connectors

J - Digital input connectors

P - 24VAC power connector

E - Digital output status LEDs

I - Digital output loss-of-power jumper

F - Manual Override Switch (outputs)

H - Status LEDs

A - Power On/Off switch

N - LCD connector

K - Digital input status LEDs

O - LCD contrast adjustment

M - DIP switch 1

D - Common Alarm connectors

C - Audible horn jumper

B - Audible horn

L - Serial interface connector (RS232/EIA574)

The Liebert AC4 controller board has connectors for four digital inputs and four digital outputs, as shown below. The board comes complete with light emitting diodes (LEDs) to display the status of connected devices, a serial communications port, a power connection and other features necessary to control your operation.

Introduction

Table 1 Controller board components

A - Power On/Off switch

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

C - Audible horn jumper

D - Common Alarm connectors

E - Digital output status LEDs

F - Manual Override Switch (outputs)

G - Digital output connectors

H - Status LEDs Indicates the operational status of the controller board. 1.7: LED Indicators

Liebert® AC4

Item Description For more information, see:

2.4: Connect Power to the Liebert AC4

N/A

3.0: Wiring and Connections

3.3: Connecting Common Alarm Outputs

7.4: Setup System - Setup Common Alarm

1.7: LED Indicators

7.9: Override Output

3.0: Wiring and Connections

3.2.2: Connecting Digital Outputs

5.5: View Output Status

7.6: Setup System - Setup Outputs

™

Power switch for the controller board.

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

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/de-energized).

Placing the switch in the ON position will turn ON, or energize, all four outputs simultaneously. This switch removes all automatic output control from the Liebert AC4.

Each of the four output connections is a two-state point: ON/OFF (energized/de-energized).

An example of a field digital output is a Liebert Environmental unit’s remote shutdown input.

Table 1 Controller board components (continued)

Item Description For more information, see:

One of four output jumpers. Each digital output has a jumper to set the fail-safe position of the output point when

I - Digital output loss-of-power jumper

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 Liebert AC4 has power.

Each of the four input connections is a two-state point:

J - Digital input connectors

ON/OFF (energized/de-energized). An example of a field digital input is a Liebert

Environmental unit’s common alarm relay output.

K - Digital input status LEDs

L - Serial interface connector (RS232/EIA574)

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

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).

M - DIP switch 1 DIP switch used for resetting password to default. 7.7.1: Change Password

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

O - LCD contrast adjustment

P - 24VAC power connector

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

Power connection for the controller. Requires 24VAC.

3.2.3: Setting the Digital Output Jumpers

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

3.0: Wiring and Connections

3.2.1: Connecting Digital Inputs

5.4: View Input Status

7.3: Setup System - Setup Inputs

1.7: LED Indicators

3.4: RS232 Connector

A.2: Connecting to the Service

Terminal Interface

2.4: Connect Power to the Liebert AC4

Introduction

5Liebert

AC4

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1.7 LED Indicators

Output LEDs

Status LEDs

Input LEDs

The Liebert AC4 controller board has LED indicators that show the status of inputs, outputs and the common alarm

Table 2 LED indicators summary

LED Type LED Color Description

EIA422

LEDs

Output LEDs

Status LEDs

Input LEDs

422 TX Green Liebert AC4 is transmitting information over the EIA422 port

422 RX Green Liebert AC4 is receiving information over the EIA422 port

OUTPUT1 Green Not used

OUTPUT2 Green Not used

OUTPUT3 Green Not used

OUTPUT4 Green Not used

OUTPUT5 Green Indicates output 1 is ON or energized

OUTPUT6 Green Indicates output 2 is ON or energized

OUTPUT7 Green Indicates output 3 is ON or energized

OUTPUT8 Green Indicates output 4 is ON or energized

CTRLLOCK N/A Not used

SENLOCK N/A Not used

CMN ALR Green Indicates output is ON or energized

MOP Green

Indicates the microprocessor is operating properly (MOP)—must be on before Liebert AC4 will function

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

574 TX or 232 TX Green Liebert AC4 is transmitting information via the RS232 port

574 RX or 232 RX Green Liebert AC4 is receiving information via the RS232 port

485 RX Green Not used

485 TX Green Not used

INPUT1 Red Not used

INPUT2 Red Not used

INPUT3 Red Not used

INPUT4 Red Not used

INPUT5 Red Indicates input 1 is ON or energized

INPUT6 Red Indicates input 2 is ON or energized

INPUT7 Red Indicates input 3 is ON or energized

INPUT8 Red Indicates input 4 is ON or energized

OUTPUT1

DS56

OUTPUT2

DS54

OUTPUT3

DS63

OUTPUT4

DS61

OUTPUT5

DS60

OUTPUT6

DS62

OUTPUT7

DS55

OUTPUT8

DS57

CTRLLOCK

DS59

SENLOCK

DS58

CMN ALR

DS53

DS52

MOP F PROG

DS51

574 TX

DS48

574 RX

DS47

485 RX

DS78

485 TX

DS79

DS69

INPUT1 INPUT2

DS71

INPUT3

DS72

INPUT4

DS70

INPUT5

DS67

INPUT6

DS66

INPUT7

DS65

INPUT8

DS64

Introduction

Liebert® AC4

™

1.8 Typical Sequence

ALARMS CLEARED

30-SEP-04 16:24:04

Entry in Alarm Log

(

ALARMS CLEARED)

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

Entry in Alarm Log

Condition (

ALARM)

& state (

CONTACT CLOSED)

The alarm is cleared

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

UNIVERSAL MONITOR 05-SEP-02 14:04:13

V5.100.0

PRESS =STATUS/SETUP

ESCESC

The LCD stops flashing

RETURN TO NORMAL

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

The horn sounds (audible horn on the controller board—silence horn by pressing any key on the LCD keypad)

The LCD flashes

(except during setup)

ALARM CONDITION DETECTED

A device connected to the Liebert AC4 changes state.

RESPONSES TO AN ALARM RETURN-TO-NORMAL SEQUENCE

ESC

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

DEVICE_4 STARTED

30-SEP-04 16:23:10

DEVICE_1 ALARM CONTACT CLOSED

Entry in Event Log

Status change (

DEVICE_4 STARTED)

Entry in Event Log

Actions in response to event (DEVICE_1 STARTED,

DEVICE_4 OFF

)

Entry in Active Alarm Log

Condition (

ALARM)

& state (

CONTACT CLOSED)

The horn stops sounding

(if user hasn’t silenced it)

User setup determines output control (for example, the device

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

Figure 4 shows a typical sequence of how the Liebert AC4 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

Introduction

UNIVERSAL MONITOR 05-SEP-02 14:04:13

V5.100.0

PRESS =STATUS/SETUP

ESC

7Liebert

AC4

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2.0 INSTALLATION

2.1 Installation Considerations

The Liebert AC4 must be installed indoors and may be mounted on the surface of a wall or flushmounted, depending on the user’s application, the location of equipment to be connected and the type of wall the unit will be mounted on.

The Liebert AC4 should be mounted where it can be easily accessed. On-site personnel would access the unit through the LCD on its front cover or the service terminal connected to the RS232 port.

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

The wall material must be capable of supporting the weight of the Liebert AC4: 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 Liebert AC4, 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 Liebert AC4 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

Liebert AC4 controller board in enclosure

User Manual

Keys (2) to panel door lock

RS232 Configuration Cable

Liebert® AC4

™

2.2 Surface-Mounting the Liebert AC4

0.213"

(5.4mm)

Mounting Slot

0.375"

(9.6mm)

Liebert AC4

back plate

12.5"

(317.5mm)

0.213" (5.4mm)

Bottom hole diameter

10"

(254mm)

NOTE

Removing the conduit knockouts before mounting the Liebert AC4 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

WARNING

Risk of electric shock. Can cause property damage, injury and death.

Check building plans and other relevant documents to determine whether mounting the Liebert AC4 at the selected location might cause cutting or otherwise damaging electrical or communication wiring or pipes.

Installation

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 Liebert AC4 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 Liebert AC4 (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 Liebert AC4 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.

Figure 5 Mounting dimensions

9Liebert

AC4

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2.3 Flush-Mounting the Liebert AC4

NOTE

The rectangular access doors on the top and bottom of the Liebert AC4 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 Liebert AC4 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 Liebert AC4

• Trim ring and associated hardware

• Mounting hardware

Installation

2.3.1 Mounting the Panel

WARNING

Risk of electric shock. Can cause property damage, injury and death.

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 Liebert AC4 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 Liebert AC4. 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.

Liebert® AC4

™

2.4 Connect Power to the Liebert AC4

24VAC input connector

24VAC wiring (red & white)

Power On/Off switch

External wiring through knockout

Earth ground terminal

Ground wire (black)

The Liebert AC4 requires 24VAC for proper operation. Liebert recommends using the optional Transformer Module manufactured by Liebert or another UL-approved class 2 power unit to obtain proper voltage. If the power unit is not a class 2 circuit, it must be protected with an IEC 5 x 20mm time lag 2A fuse. For information, consult your local dealer, Emerson representative or the Emerson Network Power Liebert Worldwide Support Group.

WARNING

Risk of electric shock. Can cause property damage, injury and death. Check that power is removed from wires prior to installation. This unit should be installed

only by properly trained and qualified personnel.

CAUTION

Risk of electric shock. Can cause property damage, injury and death. The Liebert AC4 is designed for use on properly grounded (earthed) 24VAC power, 50Hz or

60Hz. 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.

Installation

WARNING

Risk of electric shock. Can cause property damage, injury and death.

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.

To connect electrical power:

1. Run conduit and electrical wiring from building to the Liebert AC4.

2. Use copper wires only; proper wiring to use for power is 18-22 AWG stranded and shielded (18 AWG is recommended—see Table 4). Strip wires 1/2".

Figure 6 Electrical connections to panel

3. Secure the incoming electrical service wires to the Liebert AC4’s 24VAC input by sliding the wires into TB7, the 24VAC input terminal block. There is no polarity requirement when connecting to TB7. The ground wire must be connected to the earth ground terminal located on the side of the panel (see Figure 6).

11 Liebert® AC4

™

Wiring and Connections

3.0 WIRING AND CONNECTIONS

WARNING

Risk of electric shock. Can cause property damage, injury and death.

Switch Off electric power to the Liebert AC4 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.

3.1 Wiring Specifications

Input and output connections to the Liebert AC4 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

Digital

Output

Common

Alarm

Output

Communication

RS232

24VAC Power

Connection

(TB7)

* 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

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

18-22 AWG Stranded & Shielded

18 AWG* (recommended)

Non Plenum - Belden 8770 Plenum - Belden 88770

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)

20 AWG 22 AWG

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

150 ft. (45m) 24VAC @1.3A

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

Dry Contact

(24VDC, 10 mA)

24VAC @3A

Liebert® AC4

™

3.2 Connecting Digital Inputs and Outputs

INPUT TERMINAL BLOCKS Note numbering keys to right of terminal blocks; inputs are numbered from bottom (1) to top (4)

OUTPUT TERMINAL BLOCKS Note numbering keys to right of terminal blocks; outputs are numbered from bottom (1) to top (4)

Numbering keys

The digital inputs and outputs are on the lower right side of the Liebert AC4 printed wiring assembly board. This section describes how to connect devices to the Liebert AC4’s inputs and outputs.

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 4 is tied to Output 4 (default name: Device_4)

Up to four devices may be connected to the Liebert AC4. 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 assembly to permit easier connection of more than one input or output at a time. If making multiple connections, grasp the upper portion of a block and pull firmly 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.

Connecting Liebert Precision Cooling Units

Wiring and Connections

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

• Connect a digital input from the Liebert AC4 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 Liebert AC4 to the Remote Shutdown (Power Control) of the environmental unit: terminal 37/38 or TB1-4, TB1-5.

3.2.1 Connecting Digital Inputs

The four digital inputs are on the lower right side of the Liebert AC4, just below the output terminal blocks, as shown at right. These inputs are numbered 1 through 4.

To connect an input:

1. Turn Off electrical power to the Liebert AC4.

2. If necessary, remove a conduit knockout to permit wire entry into the Liebert AC4 enclosure.

3. Bring the wire(s) into the Liebert AC4 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.

13 Liebert® AC4

™

3.2.2 Connecting Digital Outputs

Digital output jumpers (four)

The four digital outputs are found on the lower right side of the Liebert AC4 just above the input terminal blocks, as shown at right. These outputs are numbered 1 through 4.

To connect an output:

1. Turn OFF electrical power to the Liebert AC4.

2. If necessary, remove a conduit knockout to permit wire entry into the Liebert AC4 enclosure.

3. Bring the wire(s) into the Liebert AC4 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. This puts the Liebert AC4 in a fail-safe mode and ensures proper functioning when the board has no power.

The Liebert AC4 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

OFF Normally open

ON Normally closed

Output status

(power loss)

Wiring and Connections

To change the output jumper setting:

1. Find the respective loss-of-power jumper on the circuit board, as shown above. See Table 1 Controller board components for more information.

2. Decide whether your configuration requires the jumper to be OFF or ON.

3. Set the jumper as needed:

• Set the jumper to OFF by placing the loss-of-power jumper on the middle and top pins.

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

Liebert® AC4

™

3.3 Connecting Common Alarm Outputs

Common alarm outputs

Serial interface connector (RS232/EIA5

74)

The common alarm relay, found in the top right corner of the Liebert AC4, permits the user to connect auxiliary notification equipment, such as lights, horns and sirens, to the Liebert AC4. 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 Liebert AC4.

2. If necessary, remove a conduit knockout to permit wire entry into the Liebert AC4 enclosure.

3. Bring the wire(s) into the Liebert AC4 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.

3.4 RS232 Connector

The Liebert AC4’s Service Terminal Interface offers full configuration and monitoring capability via the RS232 port (see A.2 - Connecting to the Service Terminal Interface).

The RS232 port requires a null modem cable. Connect one end of the cable to the Liebert AC4’s RS232 port, shown at right, and the other end to the COM1 port of a laptop computer or video terminal.

Wiring and Connections

15 Liebert® AC4

™

Overview of Menus

4.0 OVERVIEW OF MENUS

There are two ways to access the Liebert AC4: 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 Liebert AC4 functions and shows whether they can be performed through the LCD

interface and where to find information.

Table 6 Guide to Liebert AC4 functions

Can be performed via: Where to find:

Function

VIEW STATUS FUNCTIONS

View Active Alarms 44 page 19 page 57

View Alarm Log 44 page 20 page 58

View Event Log 44 page 21 page 59

View Input Status 44 page 22 page 59

View Output Status 44 page 23 page 60

SILENCE ALARM & BACK UP LOGS FUNCTIONS

Silence Alarm (On the LCD, press any key to silence an alarm)

Back Up Log Files — 4 page 25 page 62

SYSTEM & CONTROL FUNCTIONS

Setup System 44 page 29 page 64

Setup Inputs 44 page 29 page 65

Setup Common Alarm 44 page 32 page 66

Setup Zones 44 page 33 page 66

Setup Outputs 44 page 34 page 67

Setup System Info 44 page 36 page 68

Change Password 44 page 36 page 68

Set Date & Time/Automatic Daylight Saving Time 44 page 37 page 69

Setup Site ID 44 page 37 page 69

Backup and Upload Configuration File — 4 page 38 page 70

Factory Defaults 44 page 41 page 71

Perform Firmware Update — 4 page 41 page 72

Setup Operation 44 page 43 page 73

Override Output 44 page 47 page 76

Clear Alarms & Logs 44 page 48 page 77

Clear Active Alarms 44 page 48 page 77

Clear the Alarm Log 44 page 48 page 77

Clear the Event Log 44 page 48 page 78

LCD

44 page 24 page 61

Service

Terminal

Instructions on

using function

Service Terminal screen examples

Liebert® AC4

™

4.1 Opening Screen Overview

Opening Screen

LIEBERT AC4

DD-MON-YY HR:MM:SS

VX.XXX.X

PRESS

↵=STATUS/SETUP

(If any alarms detected)

Current Alarm screen (see 5.1 View Active Alarms)

Main Menu

VIEW STATUS SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

“View Status” selected

See Section

“System & Control” selected

See Section

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

5.0

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

7.0

View Status Menu

(All users - no password)

See Section

System & Control Menu

(Password required)

See Section

VIEW ACTIVE ALARMS VIEW ALARM LOG VIEW EVENT LOG VIEW INPUT STATUS VIEW OUTPUT STATUS

5.1

5.2

5.3

5.4

5.5

SETUP SYSTEM OVERRIDE OUTPUT CLEAR ALARMS & LOGS

7.2

7.9

7.10

The Liebert AC4 displays the Opening Screen at startup, as shown in Figure 7.

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

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 active alarms

• View the current status of digital inputs and outputs

• View data stored in the alarm and event logs These features—available via the Service Terminal Interface only—allow users to:

• Silence the audible alarm

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

• Configure the Liebert AC4

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

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

Overview of Menus

4.3 LCD Menu Overview

Figure 7 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 7 LCD Menu overview

17 Liebert® AC4

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5.0 VIEW STATUS OPTIONS

Opening Screen

LIEBERT AC4

DD-MON-YY HR:MM:SS

VX.XXX.X

PRESS ↵=STATUS/SETUP

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT ↵=SELECT

View Status

VIEW ACTIVE ALARMS VIEW ALARM LOG VIEW EVENT LOG VIEW INPUT STATUS VIEW OUTPUT STATUS

View Active Alarms View Alarm Log View Event Log

> ACTIVE ALARM 40/40

DEVICE_1 ALARM CONTACT CLOSED

See Section

5.1

> ALARM RECORD 99/99

DEVICE_1 ALARM CONTACT CLOSED 30-JUN-04 09:29:10

NO STANDBY AVAILABLE

29-JUN-04 10:45:00

STNDBY DEVICE FAILED

29-JUN-04 10:39:00

NO RESTART AVAILABLE

28-JUN-04 06:54:09

See Section

5.2

> EVENT RECORD 99/99

SYSTEM USER LOGIN 19-MAY-04 10:07:00

DEVICE_1 HW FORCE ON CONTACT CLOSED 18-MAY-04 06:47:03

DEVICE_4 FORCE OFF CONTACT OPEN 18-MAY-04 05:22:17

DEVICE_3 AUTO CONTACT OPEN 18-MAY-04 04:32:11

See Section

5.3

View Input Status View Output Status

INPUT / STATUS

> DEVICE_1 ALARM

DEVICE_2 NORMAL DEVICE_3 NORMAL DEVICE_4 NORMAL

See Section

5.4

OUTPUT / STATUS

> DEVICE_1 ALARM

DEVICE_2 OPERATING DEVICE_3 OPERATING DEVICE_4 OPERATING

See Section

5.5

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, data stored in the alarm and event logs and the status of all inputs and outputs. The arrows menu. The Enter ↵ key is used to select the menu item.

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

• View Active Alarms

•View Alarm Log

•View Event Log

• View Input Status

• View Output Status

Figure 8 shows the main options available from the View Status menu.

Figure 8 Menu overview - View Status menu

View Status Options

↑↓ are used to scroll through the

Liebert® AC4

™

5.1 View Active Alarms

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

> VIEW ACTIVE ALARMS

VIEW ALARM LOG VIEW EVENT LOG VIEW INPUT STATUS

VIEW OUTPUT STATUS

Active Alarms

> ACTIVE ALARM 01/40

DEVICE_1 ALARM CONTACT CLOSED

The Active Alarm screen displays all alarms that are occurring, up to a maximum of 40.

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:

View Status Options

• 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 40 records; it shows any active alarm and any Latched alarm that has not been cleared. Examples of alarms include inputs in alarm status and failure of a standby device. 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 (

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

NO ALARMS PRESENT

Viewing Additional Screens

There may be up to 40 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 7.10 Clear Alarms & Logs. Alarm records are stored in the Alarm Log.

↑↓ to choose View Status, as

↑↓ to choose View

DEVICE_1)

CONTACT CLOSED)

↑↓.

19 Liebert® AC4

™

5.2 View Alarm Log

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

VIEW ACTIVE ALARMS

> VIEW ALARM LOG

VIEW EVENT LOG VIEW INPUT STATUS

VIEW OUTPUT STATUS

Alarm Log

> ALARM RECORD 99/99

DEVICE_1 ALARM CONTACT CLOSED 30-JUN-04 09:29:10

NO STANDBY AVAILABLE

29-JUN-04 10:45:00 STNDBY DEVICE FAILED

29-JUN-04 10:39:00 NO RESTART AVAILABLE

28-JUN-04 06:54:09

The Alarm Log contains up to 99 records of alarms that have occurred. Records are added to this log as alarms occur.

To view the Alarm Log:

View Status Options

• From the Main Menu, use the arrows

then press Enter ↵.

• From the View Status Menu, use the arrows

Alarm Log, then press Enter ↵.

5.2.1 Alarm Log

The Alarm Log screen displays up to 99 records showing alarm data, including inputs and outputs in alarm status and failure of a standby device. If the log contains any alarm records, the Alarm Log screen displays details for each alarm:

• the source of the alarm (for example,

• the status of an input or output ( description of the problem (

• the date and time the alarm occurred

Table 8 shows conditions that the alarm log records for digital inputs and in the panel itself.

Table 8 Alarm log conditions

SOURCE

CONDITIONS RECORDED

↑↓ to choose View Status,

DEVICE_1)

CONTACT CLOSED) or a brief

STNDBY DEVICE FAILED)

Digital Input Panel

LOSS OF POWER

ALARM NORMAL

ALARM SILENCED ALARMS CLEARED STNDBY DEVICE FAILED NO STANDBY AVAILABLE NO RESTART AVAILABLE

↑↓ to choose View

If there are no alarms in the log, the screen displays the message:

Viewing Additional Screens

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

There may be up to 99 records of alarm data.

• To view additional records, use the arrows

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

The alarm log is stored as a file in the Liebert AC4; it can hold no more than 99 records. When the log is full, the oldest records are deleted from the end of the file as new alarm records are added at the beginning.

You may back up the alarm log file to a remote computer using the Service Terminal Interface, as described in 6.2 Back Up Log Files (Service Terminal Interface only).

To delete all records in the alarm log, see 7.10 Clear Alarms & Logs.

NO ALARMS

↑↓.

Liebert® AC4

™

5.3 View Event Log

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

VIEW ACTIVE ALARMS VIEW ALARM LOG

> VIEW EVENT LOG

VIEW INPUT STATUS VIEW OUTPUT STATUS

Event Log

> EVENT RECORD 99/99

SYSTEM USER LOGIN 19-MAY-04 10:07:00

DEVICE_1 HW FORCE ON CONTACT CLOSED 18-MAY-04 06:47:03

DEVICE_4 FORCE OFF CONTACT OPEN 18-MAY-04 05:22:17

DEVICE_3 AUTO CONTACT OPEN 18-MAY-04 04:32:11

DATE AND TIME SET 18-MAY-04 03:11:43

DEVICE_4 FORCE ON CONTACT CLOSED 18-MAY-04 02:34:00

In addition to alarms, the Liebert AC4 tracks other changes in the Event Log to assist users with verifying operational and troubleshooting problems. Events reflect changes in the status of an input that is defined as an event or the change of state of an output (i.e., manually forced ON or OFF). Other events may be informational, such as a user login. The Event Log contains up to 99 records of events, which are added as they occur.

To view the Event Log:

View Status Options

5.3.1 Event Log

• From the Main Menu, use the arrows

↑↓ to choose View Status,

then press Enter ↵.

• From the View Status Menu, use the arrows

↑↓ to choose View

Event Log, then press Enter ↵.

The Event Log screen displays up to 99 recent events. If the log contains any event records, the Event Log screen displays details for each event:

• the event source (for example,

• the status of an input or output ( description of the event (

DEVICE_1)

CONTACT CLOSED) or a brief

USER LOGIN)

• the date and time the event occurred

Table 9 shows conditions that the event log records for inputs and outputs and in the panel itself.

Table 9 Event log conditions

SOURCE

CONDITIONS RECORDED

Digital Input Digital Output Panel

ALARMS CLEARED ALARM SILENCED NO STANDBY OUTPUTS

AVAILABLE

NO STANDBY TESTING

DEVICE AVAILABLE TIME & DATE SET USER LOGIN

EVENT NORMAL

STARTED ON OFF HW FORCE ON AUTO FORCE ON FORCE OFF RESTORED

If there are no records in the log, the screen displays the message:

Viewing Additional Screens

There may be up to 99 records of event data.

• To view additional records, use the arrows

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

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

The event log is stored as a file in the Liebert AC4; it can hold no more than 99 records. When the log is full, the oldest records are deleted from the end of the file as new event records are added at the beginning.

You may back up the event log file to a remote computer using the Service Terminal Interface, as described in 6.2 Back Up Log Files (Service Terminal Interface only).

To delete all records in the event log, see 7.10 Clear Alarms & Logs.

NO EVENTS

↑↓.

21 Liebert® AC4

™

5.4 View Input Status

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

VIEW ACTIVE ALARMS VIEW ALARM LOG VIEW EVENT LOG

> VIEW INPUT STATUS

VIEW OUTPUT STATUS

Input Status

INPUT / STATUS

> DEVICE_1 ALARM

DEVICE_2 NORMAL DEVICE_3 NORMAL

DEVICE_4 NORMAL

The Input Status option allows you to view the current status of all four digital inputs.

To view the Input Status:

View Status Options

• From the Main Menu, use the arrows

then press Enter ↵.

• From the View Status Menu, use the arrows

Input Status, then press Enter ↵.

5.4.1 Input Status

The Input Status screen displays the status of each digital input.

The following details appear for digital inputs:

• the name of the digital input (for example,

• the current status ( being viewed

There are three possible states for a digital input, as shown in Table 10.

Table 10 Digital input states

State Description

NORMAL In normal state ALARM In alarm status (for an input configured as alarmable) EVENT An event has occurred (for an input configured as an event)

Viewing Additional Input Data

All input data may be viewed by scrolling beyond the four lines that appear on the LCD at one time:

• To view all inputs, use the arrows

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

↑↓ to choose View Status,

↑↓ to choose View

DEVICE_1)

ALARM)—values are updated constantly while

↑↓.

Liebert® AC4

™

5.5 View Output Status

Main Menu

> VIEW STATUS

SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

View Status Menu

VIEW ACTIVE ALARMS VIEW ALARM LOG VIEW EVENT LOG VIEW INPUT STATUS

> VIEW OUTPUT STATUS

Output Status

OUTPUT / STATUS

> DEVICE_1 ALARM

DEVICE_2 OPERATING DEVICE_3 OPERATING

DEVICE_4 OPERATING

The Output Status option allows you to view the current status of all four outputs.

To view the Output Status:

View Status Options

• From the Main Menu, use the arrows then press Enter ↵.

• From the View Status Menu, use the arrows Output Status, then press Enter ↵.

5.5.1 Output Status

The Output Status screen displays the status of each digital output.

The following details appear for digital outputs:

• the name of the output (for example,

• the current status ( being viewed

There are eight possible states for a digital output, as shown in Table 11.

Table 11 Digital output states

State Description

OPERATING Device operating, or ON STANDBY Device in standby mode ALARM Device in alarm FORCE ON Device forced ON by operator FORCE OFF Device forced OFF by operator HW FORCE ON Device forced ON by hardware switch PENDING Pending delay timer NOT USED Device not used

↑↓ to choose View Status,

↑↓ to choose View

DEVICE_1)

ALARM)—values are updated constantly while

Viewing Additional Output Data

All output data may be viewed by scrolling beyond the four lines that appear on the LCD at one time:

• To view all outputs, use the arrows

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

↑↓.

23 Liebert® AC4

™

Silence Alarm & Backup Log Files (Service Terminal Interface)

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

This section describes two features that are available in the Service Terminal Interface:

• Silence Alarm

• Backup Log Files

6.1 Silence Alarm (Service Terminal Interface)

The Silence Alarm menu item allows you to silence the audible alarm and reset the Common Alarm Relay output if the common alarm is configured to reset with silence.

This menu item is available only through the Service Terminal Interface.

NOTE

An alarm may also be silenced by pressing any key on the LCD keypad on the front of the Liebert AC4. The LCD does not offer Silence Alarm as a menu item.

To silence the alarm remotely through the Service Terminal Interface:

• Connect to the Liebert AC4 either from a remote computer or through the RS232 port (see A.2 - Connecting to the Service Terminal Interface).

• At the Main Menu, enter 6 (Silence Alarm).

• At the Silence Alarm menu, shown below, enter 1 to silence the audible alarm immediately. (To exit without silencing the alarm, enter 2 or press the Escape key.)

Silence Alarm (Service Terminal Interface only)

SILENCE ALARM

Silence alarm and reset common alarm relay if common alarm relay is configured to reset with silence alarm

1=SILENCE ALARM 2=RETURN TO MAIN MENU

SELECT A NUMBER:1

>ALARM HAS BEEN SILENCED

• A confirmation message appears: “Alarm has been silenced.”

Liebert® AC4

™

Silence Alarm & Backup Log Files (Service Terminal Interface)

6.2 Back Up Log Files (Service Terminal Interface only)

The Liebert AC4 maintains two types of logs—alarm and event—that may be backed up to a remote computer.

This feature is available only through the Service Terminal Interface.

To back up the alarm or event log:

1. Connect to the Liebert AC4 through the RS232 port (see A.2 - Connecting to the Service Terminal Interface).

2. At the Main Menu, enter 7 (Backup Log Files).

3. At the Backup Log Files menu, as shown below, enter a number for the type of file you want to back up:

• Enter 1 to back up the Alarm Log

• Enter 2 to back up the Event Log

Backup Log Files - Event Log File (Service Terminal Interface only)

BACKUP LOG FILES

Backup alarm and event log files

1=BACKUP ALARM LOG FILE 2=BACKUP EVENT LOG FILE 3=RETURN TO MAIN MENU

SELECT A NUMBER:2

4. At the prompt to initiate a backup of the selected log file, enter Y (Yes - begin) or N (No - cancel). The current setting appears in brackets—[N] in the following example.

>INITIATE A BACKUP OF EVENT LOG-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM BACKUP: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT RECEIVE FILE

- ENTER FOLDER WHERE FILE IS TO BE RECEIVED

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT RECEIVE BUTTON AND ENTER FILE NAME, E.G., EVENT.LOG

25 Liebert® AC4

™

Silence Alarm & Backup Log Files (Service Terminal Interface)

Enter filename for example,

event.log

Select Xmodem

Enter folder

NOTE

The following instructions refer to the Microsoft

Windows® HyperTerminal program. These

steps may vary for other communications programs.

5. At the top of the HyperTerminal window, shown below, click on Transfer, then on Receive File.

6. In the Receive File window, as shown above:

• In the Place Received File in the Following Folder box, enter the name and location of the folder where the configuration file should be placed—for example, C:\downloads—or click on the Browse button to locate the folder.

• In the Use Receiving Protocol box, select Xmodem from the drop-down list.

• Click on the Receive button. (To close the window without backing up the file, click on Close or Cancel.)

7. In the Receive Filename window, enter a name for the log file—Event.log in the example above.

8. When the transfer is complete, a confirmation message appears in the Service Terminal Interface window: “Backup Successful.”

INSTRUCTIONS TO PERFORM BACKUP: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT RECEIVE FILE

- ENTER FOLDER WHERE FILE IS TO BE RECEIVED

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT RECEIVE BUTTON AND ENTER FILE NAME, E.G., EVENT.LOG

>BACKUP SUCCESSFUL

9. The display returns to the Backup Log Files menu. You may choose another type of log file to back up (return to Step 3) or press 3 (or Escape) to return to the Main Menu.

After backing up a log file, you may want to delete all records in the Liebert AC4 log of that type. See

7.10 Clear Alarms & Logs for details.

Liebert® AC4

™

7.0 SYSTEM AND CONTROL OPTIONS

Main Menu

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

AAAA

↑↓=SELECT ↵=NEXT/END

System & Control Menu

> SETUP SYSTEM

OVERRIDE OUTPUT CLEAR ALARMS & LOGS

↑↓=NEXT

↵=SELECT

NOTE

The System and Control menu allows you to configure the Liebert AC4—setting up inputs and outputs and system features such as date and time. This menu also provides a vehicle for manually changing the state of an output to ON or OFF, clearing active alarms and deleting records from the Liebert AC4’s alarm and event logs.

The arrows and enter new information. Table 12 shows characters that may be entered in labels and values.

Table 12 Valid characters for data entry

Alphanumeric Special characters

A-Z, 0-9 space [ ] ^ _ ! " # $ % & ( ) * + - / , . ; < = > @

The System and Control options require a password to prevent unauthorized users from making changes to the system.

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

• Login - enter the password

• Setup System - configure inputs, outputs, system features

• Override Output - manually override automatic control of outputs; release the override

• Clear Alarms & Logs - clear active alarms; delete records from the alarm and event logs

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

System and Control Options

7.1 Login

Users must enter a password to access any of the system and control options. The password consists of four characters (see Table 12 for valid characters). (To set up or change the password, see

7.7.1 Change Password.) The default password is AAAA.

To log in:

• From the Main Menu, use the arrows

• Use the arrows

• To enter your password:

The System and Control Menu appears next, with these options that are described in the following sections:

• Setup System (Section 7.2 - Section 7.7)

• Override Output (Section 7.9)

•Clear Alarms & Logs (Section 7.10)

NOTE

If an alarm occurs while a user is logged on, the LCD backlight will flash and the audible alarm will sound. To obtain specific information about the alarm, you must access the Active Alarm screen (see 5.1 View Active Alarms) or the Alarm Log (see 5.2 View Alarm Log).

↑↓ to choose System and

Control, then press Enter ↵, as shown at right.

↑↓ to choose System and Control, and press

Enter ↵. The Login menu appears.

• Use the arrows

↑↓ to choose a character.

• Press Enter ↵ to advance to the next character position.

• When finished, press Enter ↵ again.

NOTE

If, after logging in, you press the ESC key to return to a previous screen that is not passwordprotected, you must log in again, including entering your password if you wish to access password-protected functions.

27 Liebert® AC4

™

Figure 9 shows the main options available from the System & Control menu.

Figure 9 Menu overview - System and Control menu

Opening Screen

LIEBERT AC4

DD-MON-YY HR:MM:SS

VX.XXX.X

↵=STATUS/SETUP

PRESS

Main Menu

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT ↵=SELECT

AAAA

↑↓=SELECT ↵=NEXT/END

System and Control Options

System & Control menu

Setup System selected

> SETUP SYSTEM

OVERRIDE OUTPUT CLEAR ALARMS & LOGS

System & Control menu

Override Output selected

SETUP SYSTEM

> OVERRIDE OUTPUT

CLEAR ALARMS & LOGS

System & Control menu

Clear Alarms&Logs selected

SETUP SYSTEM OVERRIDE OUTPUT

> CLEAR ALARMS & LOGS

Setup System menu Select Output Clear Alarms/Logs menu

SETUP INPUTS SETUP COMMON ALARM SETUP ZONES SETUP OUTPUTS SETUP SYSTEM INFO SETUP OPERATION

See Section

7.2

OVERRIDE OUTPUT

> DEVICE_1 AUTO

DEVICE_2 AUTO DEVICE_3 AUTO DEVICE_4 FORCE ON

See Section

7.9

CLEAR ACTIVE ALARMS CLEAR ALARM LOG CLEAR EVENT LOG

See Section

7.10

Override Output

SELECT DEVICE_1

FORCE ON

Setup System options

CLEAR ACTIVE ALARMS ARE YOU SURE? N

CLEAR EVENT LOG ARE YOU SURE? N

CLEAR ALARM LOG ARE YOU SURE? N

Setup Inputs Setup Common Alarm Setup Zones Setup Outputs

SELECT INPUT

> DEVICE_1 NO-AL-NL

DEVICE_2 NO-AL-NL DEVICE_3 NO-AL-NL DEVICE_4 NO-EV-NL

SETUP DEVICE_1 LABEL: DEVICE_1 NORM OPEN/CLOSE: NO ALARM/EVENT: AL LATCHED: N DELAY: 00:01

See Section

7.3

RESET COMMON ALARM WITH SILENCE? N

See Section

7.4

SETUP ZONES ZONE 1 2 ZONE 2 2

# DEVICES IN ZONE ZONE 1 2

See Section

7.5

SELECT OUTPUT

> DEVICE_1 NO-OP-E

DEVICE_2 NO-ST-E DEVICE_3 NO-NU-D DEVICE_4 NO-NU-D

SETUP DEVICE_1 NORM OPEN/CLOSE: NO MODE: OPERATING IN ALARM: ENABLE

See Section

7.6

Setup System Info Setup Operation

CHANGE PASSWORD SET DATE & TIME SETUP SITE ID FACTORY DEFAULTS

See Section

7.7

AUTO SEQUENCING OFF STANDBY TESTING OFF FAILED STANDBY N HOLD DELAY : 10:00 RESTART : 00:06

See Section

7.8

Setup System Info options

Change Password Set Date & Time Setup Site ID Factory Defaults

CHANGE PASSWORD

AAAA

See

SET DATE & TIME

Section

DAYLIGHT SVG TIME: Y

7.7.1

18-MAY-02 10:56:30

See Section

7.7.2

SETUP SITE ID See

Section

7.7.3

RESTORE ALL DEFAULTS ARE YOU SURE? N

See Section

7.7.5

7.2 Setup System - Overview

Setup System Menu

> SETUP INPUTS

SETUP COMMON ALARM SETUP ZONES ↑↓=NEXT ↵=SELECT

SETUP OUTPUTS SETUP SYSTEM INFO SETUP OPERATION

Select Input Menu

SELECT INPUT

> DEVICE_1 NO-AL-NL

DEVICE_2 NO-AL-NL ↑↓=NEXT ↵=SELECT

DEVICE_3 NO-AL-NL DEVICE_4 NO-AL-NL

The Setup System screen displays six options that allow you to configure input and output devices, the common alarm, and a variety of system details, such as login password and system date and time:

• Setup Inputs

• Setup Common Alarm

• Setup Zones

• Setup Outputs

• Setup System Info

• Setup Operation

7.3 Setup System - Setup Inputs

The Liebert AC4 has four digital input points that may be configured individually. These inputs may have a wide variety of Liebert or other manufacturers’ equipment connected.

To configure a digital input:

• From the Main Menu, use the arrows

Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows

Setup System, then press Enter ↵.

System and Control Options

↑↓ to choose System and

↑↓ to choose

Select a Digital Input to Configure

Table 13 shows the digital input features you may change, along with the default settings: you may change the name of the input, define it as normally open or closed, and specify it as alarmable or as an event.

Use the steps following Table 13 to change the default settings for any digital input.

Table 13 Default settings - digital inputs

• From the Setup System Menu, shown at right, use the arrows

↑↓ to choose Setup Inputs and

press Enter ↵.

• From the Select Input Menu, choose an input—for example, Device_1—and press Enter ↵.

• Alarmable inputs may be defined as either Unlatched or Latched.

• Event status allows you to monitor a digital input’s state—and use a change in state to initiate an action through an output, if desired—without triggering an alarm. Events are always Unlatched.

• You may also specify a time delay before the Liebert AC4 responds to an alarm or event.

Feature Default Other Options

LABEL DEVICE_1 Any name (up to eight characters)

NORM OPEN/CLOSE NO (Normally open) NC (Normally closed)

ALARM/EVENT AL (Alarmable) EV (Event)

LATCHED L (Latched) / Y (Yes)* NL (Unlatched) / N (No)*

DELAY 00:01 (1 second) Any time (in minutes and seconds) from 00:00 to 99:59

* NOTE: Different abbreviations are used to designate a digital input as Latched or Unlatched as shown below.

Settings - Select Input Menu

(see Section 7.3)

Unlatched NL (Not Latched) N (No, not latched)

Latched L (Latched) Y (Yes, latched)

When configuring an input (see Section 7.3.4)

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7.3.1 Change Label (Name of Input)

Setup Inputs Menu

SETUP DEVICE_1

> LABEL: DEVICE_1

NORM OPEN/CLOSE: NO ALARM/EVENT: AL ↑↓=NEXT ↵=SELECT

LATCHED: N DELAY: 00:01

Change Label

CHANGE LABEL

DEVICE_1

↑↓=SELECT ↵=NEXT/END

Setup Inputs Menu

SETUP DEVICE_1

LABEL: DEVICE_1

> NORM OPEN/CLOSE: NO

ALARM/EVENT: AL ↑↓=NEXT ↵=SELECT

LATCHED: N DELAY: 00:01

Normally Open / Closed

IS INPUT NORMALLY OPEN OR CLOSED? NO

↑↓=NO/NC ↵=END

Setup Inputs Menu

SETUP DEVICE_1 LABEL: DEVICE_1 NORM OPEN/CLOSE: NO

> ALARM/EVENT: AL

↑↓=NEXT ↵=SELECT LATCHED: N

DELAY: 00:01

Alarmable / Event

IS INPUT AN ALARM OR EVENT? AL

↑↓=AL/EV ↵=END

Each input has a default label (Device_1, Device_2, etc.) that you may change to a more descriptive name for ease in recognizing alarms and events associated with the input. The label may consist of up to eight characters (see Table 12 for valid characters).

The device name assigned through this menu is also displayed for the corresponding output.

Table 14 Input and output labels

Label Applies to:

Device_1 Input 1 Output 1 Device_2 Input 2 Output 2 Device_3 Input 3 Output 3 Device_3 Input 3 Output 3

If the input label is changed, the output will change also.

• From the Setup Inputs Menu, choose Label for the selected input—Label: Device_1 in the

example at right—and press Enter ↵.

• To change the input’s label, which may consist of up to eight characters:

• Use the arrows

• Press Enter ↵ to advance to the next character position.

• When finished, press Enter ↵ again.

↑↓ to choose a character.

System and Control Options

7.3.2 Define Input as Normally Open or Normally Closed

Each input may be set up as Normally Open (NO) or Normally Closed (NC). The default setting for all input points is NO (Normally Open).

If you require an input to be a supervised point, define the input as Normally Closed (NC).

• From the Setup Inputs Menu, choose Norm Open/Close, as

shown at right, and press Enter ↵.

• To change the normal state for this input, use the arrows choose NO (Normally Open) or NC (Normally Closed), then press Enter ↵.

7.3.3 Define Input as Alarmable or Event

Each input may be defined as Alarmable (AL) or as an Event (EV).

• For an input defined as alarmable, a change in the status of the device triggers these actions: the LCD flashes, the audible horn sounds, a record is entered in the Alarm Log and the common alarm relay is energized.

• For an input defined as an event, a change in the status of the

Liebert® AC4

device is recorded in the Event Log.

For both types (alarmable and event), user setup determines output control—whether the device that changed status is disabled or kept in operating mode and whether a standby device is set to operate.

By default, all inputs are set up as AL (Alarmable).

• From the Setup Inputs Menu, choose Alarm/Event, as shown at right, and press Enter ↵.

• To change the type of input, use the arrows Enter ↵.

™

↑↓ to

↑↓ to choose AL (Alarmable) or EV (Event), then press

7.3.4 Set Up Alarmable Inputs in Latched or Unlatched Mode

Setup Inputs Menu

SETUP DEVICE_1 LABEL: DEVICE_1 NORM OPEN/CLOSE: NO ALARM/EVENT: AL ↑↓=NEXT ↵=SELECT

> LATCHED: N

DELAY: 00:01

Latched / Unlatched

IS ALARM LATCHED? N

↑↓=Y/N ↵=END

Message (if input has been defined as an event)

LATCH NOT ALLOWED WHEN IN EVENT MODE

ESC=BACK

Setup Inputs Menu

SETUP DEVICE_1 LABEL: DEVICE_1 NORM OPEN/CLOSE: NO ALARM/EVENT: AL ↑↓=NEXT ↵=SELECT

LATCHED: N

DELAY: 00:01

Delay Time

DELAY TIME BEFORE TRIGGER?

MIN : 01 SEC

↑↓=SELECT

↵=NEXT/END

Alarmable input points may be set up in Latched mode (Y), which requires the user to clear the Liebert AC4 alarms after an alarm has occurred, or Unlatched mode (N), in which alarms will automatically clear after a return-to-normal state. The default setting for alarmable inputs is Y (Latched). Any input defined as an event is automatically Unlatched.

An input defined as Latched does not reset automatically after an alarm. It will remain in the triggered position even after the monitored device returns to normal. After an alarm, the user must manually reset Latched inputs, as described in 7.10.1 Clear Active Alarms. This also means that any outputs linked to a Latched digital input will remain triggered until the input is manually reset.

An input defined as Unlatched will automatically track the status of the monitored device. No action by the user is required.

• From the Setup Inputs Menu, choose Latched, as shown above

right, and press Enter ↵.

• To change this feature, use the arrows

Latched) or N (No - Unlatched), then press Enter ↵.

NOTE: Only alarmable input points may be set up as Latched. If you attempt to set up an event as Latched, the message shown at right appears. Press the ESC key to return to the previous screen to continue configuring the digital input.

↑↓ to choose Y (Yes -

System and Control Options

The only way to reset latched alarms is by clearing active alarms. This step is required to return latched points to their normal state. For details, see 7.10.1 Clear Active Alarms.

7.3.5 Set Up Delay Time

Each input may be set up with a specified time delay between the occurrence of an alarm or event—a monitored device changes state— and any response by the Liebert AC4. This feature can prevent needless responses to transient conditions.

This delay is the amount of time that must elapse before the Liebert AC4 acknowledges the change of state in the monitored device and takes any further action, such as dialing configured pagers. The default time delay is 1 second (displayed as 00 MIN : 01 SEC).

The time delay applies only when a monitored device changes from its normal state—for example, the Liebert AC4 detects a closed contact that is defined as Normally Open.

When the monitored device returns to its normal state, the Liebert AC4 acknowledges the change of state after the delay timer ends its countdown.

• From the Setup Inputs Menu, choose Delay, as shown at right, and press Enter ↵.

• To change the time delay in minutes and seconds (in the range of 00:00 to 99:59):

• For minutes (MIN), press and hold one of the arrow keys

↑↓ scroll through the numbers 00-99.

• Press Enter ↵ to advance to seconds (SEC).

• For seconds (SEC), press and hold one of the arrow keys

↑↓ scroll through the numbers 00-59.

• When finished, press Enter ↵ again.

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7.4 Setup System - Setup Common Alarm

Setup System Menu

SETUP INPUTS

> SETUP COMMON ALARM

SETUP ZONES ↑↓=NEXT ↵=SELECT

SETUP OUTPUTS SETUP SYSTEM INFO SETUP OPERATION

Reset Common Alarm

RESET COMMON ALARM WITH SILENCE? N

↑↓=Y/N ↵=END

The audible alarm sounds after the Liebert AC4 detects an alarm condition in any input that has been defined as alarmable. Once the alarm is silenced, there are two options:

• By default, the common alarm remains energized until all input alarms are cleared.

• You may change this setting to de-energize the common alarm automatically once the alarm is silenced.

You might want to reset the common alarm with silence if an external alarm—for example, a horn—is connected to the common alarm output contacts.

You might not want to reset the common alarm contacts (let contacts reflect/track alarms) and simply silence the audible horn.

To change the common alarm setting:

• From the Main Menu, use the arrows

7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows Enter ↵.

Change to Reset (Y) or Not Reset (N)

• From the Setup System Menu, shown at right, use the arrows to

choose Setup Common Alarm and press Enter ↵.

• By default, the common alarm is set up not to reset automatically when the alarm is silenced (N). To change this setting, use the arrows

↑↓ to choose Y (Yes - reset with silence) or N (No - not

reset), then press Enter ↵.

↑↓ to choose System and Control, then press Enter ↵ (see

System and Control Options

↑↓ to choose Setup System, then press

↑↓

Liebert® AC4

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7.5 Setup System - Setup Zones

Setup System Menu

SETUP INPUTS SETUP COMMON ALARM

> SETUP ZONES

↑↓=NEXT ↵=SELECT SETUP OUTPUTS

SETUP SYSTEM INFO SETUP OPERATION

Setup Zones

SETUP ZONES

> ZONE 1 4

ZONE 2 0

↑↓=NEXT

↵=SELECT

Number of Devices

# DEVICES IN ZONE

ZONE 1 4

↑↓=SELECT ↵=NEXT/END

Message (if too few devices entered)

MINIMUM OF 2 DEVICES ESC BACK

Message (if too many devices entered)

TOO MANY DEVICES ESC BACK

The Liebert AC4 has two zones that may be used to define different areas—rooms or sections of a room. The Liebert AC4 effectively performs as two separate units, controlling each zone separately, for examply, using a different rotation sequence for devices in each zone.

Each zone may have two to four outputs associated with it. By default, Zone 1 has four associated outputs and Zone 2 has none.

To set up zones:

• From the Main Menu, use the arrows Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows Setup System, then press Enter ↵.

Select Setup Zones

• From the Setup System Menu, shown at right, use the arrows to

choose Setup Zones and press Enter ↵.

7.5.1 Set Up a Zone

• From the Setup Zones Menu, choose a zone—for example, Zone 1—and press Enter ↵.

• On the Number of Devices screen, Use the arrows ↑↓ to select the number of outputs for this zone, then press Enter ↵. The example at right shows four outputs in Zone 1.

Table 15 shows the default number of outputs for each zone.

Table 15 Default zones

Zone Default number of outputs

Zone 1 4

Zone 2 0

System and Control Options

↑↓ to choose System and

↑↓ to choose

↑↓

NOTE: Each zone that is used must have at least two outputs, and the total for the two zones cannot exceed four.

A message appears if you enter too few or too many devices, as shown at right. Press Escape to return to the Setup Zones menu.

Table 16 shows the possible combinations of outputs for each zone. For example, if Zone 1 has four outputs, then Zone 2 may not be used (0 outputs).

Table 16 Possible combinations - outputs per zone

If Zone 1 has: Zone 2 must have:

4 or 3 outputs 0 (not used)

2 outputs 0 (not used) or 2 outputs

0 (not used) 2 or 3 or 4 outputs

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7.6 Setup System - Setup Outputs

Setup System Menu

SETUP INPUTS SETUP COMMON ALARM SETUP ZONES ↑↓=NEXT ↵=SELECT

> SETUP OUTPUTS

SETUP SYSTEM INFO SETUP OPERATION

Select Output Menu

SELECT OUTPUT

> DEVICE_1 NO-OP-E

DEVICE_2 NO-ST-E ↑↓=NEXT ↵=SELECT

DEVICE_3 NO-NU-D DEVICE_4 NO-NU-D

Setup Outputs Menu

SETUP DEVICE_1

> NORM OPEN/CLOSE: NO

MODE: OPERATING ↑↓=NEXT ↵=SELECT

IN ALARM: ENABLE

Change State

SET TO NORMAL OPEN OR NORMAL CLOSE? NO

↑↓=NO/NC ↵=END

The Liebert AC4 has four outputs that may be configured individually. These outputs correspond to the four numbered inputs. For example, Device_1 is the unit connected to Input 1 and to Output 1.

The output name is the same as the input name, as described in

7.3.1 Change Label (Name of Input).

To configure an output:

• From the Main Menu, use the arrows Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows Setup System, then press Enter ↵.

Select an Output to Configure

• From the Setup System Menu, shown at right, use the arrows choose Setup Outputs and press Enter ↵.

• From the Select Output Menu, choose an output—for example,

Device_1—and press Enter ↵.

Table 17 shows digital output features and their default settings: you

may define an output as normally open or normally closed, set the device’s mode—operating, standby or not used—and specify whether to disable the device when an alarm occurs.

System and Control Options

↑↓ to choose System and

↑↓ to choose

↑↓ to

Use the steps following Table 17 to change the default settings for any digital output.

Table 17 Default settings - digital outputs

NORM OPEN/CLOSE NO (Normally open) NC (Normally closed)

MODE

IN ALARM E (Enable) D (Disable)

7.6.1 Define Output as Normally Open or Normally Closed

Each output may be set up as Normally Open (NO) or Normally Closed (NC). The default setting for all output points is NO (Normally Open).

• From the Setup Outputs Menu, shown at right, use the arrows to

• To change the normal state for this output, use the arrows choose the state:

• Press Enter ↵.

Liebert® AC4

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Feature Default Other Options

Outputs 1-3: Output 4:

choose Norm Open/Close and press Enter ↵.

OP (Operating) ST (Standby)

OP (Operating) ST (Standby) NU (Not Used)

• NO (Normally Open)

• NC (Normally Closed)

↑↓

↑↓ to

7.6.2 Define Operating or Standby Mode

Setup Outputs Menu

SETUP DEVICE_1 NORM OPEN/CLOSE: NO

> MODE: OPERATING

↑↓=NEXT ↵=SELECT IN ALARM: ENABLE

Set Mode

SET MODE: OP

↑↓=OP/ST/NU ↵=EDIT

Setup Outputs Menu

SETUP DEVICE_1 NORM OPEN/CLOSE: NO MODE: OPERATING ↑↓=NEXT ↵=SELECT

> IN ALARM: ENABLE

Change State in Alarm

STATE OF DEVICE IN ALARM: DISABLE

↑↓=E/D ↵=EDIT

Each output may be defined as Operating (OP), Standby (ST), or Not Used (NU). This setting takes precedence over any setting in the override menu (see 7.9 Override Output).

Default settings are:

• Outputs 1, 2 and 3 are in Operating (OP) mode

• Output 4 is in Standby (ST) mode

To change the mode:

System and Control Options

• From the Setup Outputs Menu, shown at right, use the arrows to

choose Mode for the selected output and press Enter ↵.

• To change the output’s mode, use the arrows

↑↓ to choose one of

these options:

• OP (Operating)

• ST (Standby)

• NU (Not Used)

• Press Enter ↵.

7.6.3 Enable or Disable an Output Device in Alarm Status

You may choose whether to Enable or Disable an output when the connected device is in alarm status. The default setting for all output points is Enabled.

• From the Setup Outputs Menu, choose In Alarm, as shown at right, and press Enter ↵.

• To make a change, use the arrows

↑↓ to choose E (Enable) or

D (Disable) to determine what happens when an alarm is detected

in the device.

• Press Enter ↵.

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

Each output has an associated jumper that can help prevent undesired effects when the controller board loses power. For example, without the proper fail-safe jumper setting, a loss of power might close a switch that is Normally Open (NO)—perhaps shutting off an environmental unit or a fan or closing a valve.

↑↓

This fail-safe jumper setting is unrelated to configuring an output as Normally Open (NO) or Normally Closed (NC), as described in 7.6.1 Define Output as Normally Open or Normally Closed.

To configure a digital output jumper for a loss of power:

• Set the jumper in the “OFF” position (factory default) to make the output Normally Open (NO).

• Set the jumper in the “ON” position to make the output Normally Closed (NC).

For more information, see 3.2.3 Setting the Digital Output Jumpers.

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7.7 Setup System - Setup System Info

Setup System Menu

SETUP INPUTS SETUP COMMON ALARM SETUP ZONES ↑↓=NEXT ↵=SELECT

SETUP OUTPUTS

> SETUP SYSTEM INFO

SETUP OPERATION

Setup System Info Menu

SETUP SYSTEM INFO

> CHANGE PASSWORD

SET DATE & TIME ↑↓=NEXT ↵=SELECT

SETUP SITE ID FACTORY DEFAULTS

Change Password

CHANGE PASSWORD

AAAA

↑↓=SELECT ↵=NEXT/END

The Setup System Info options allow users to:

• Change Password—used for access to system setup functions

• Set Date & Time/Automatic Daylight Saving Time—used to set the Liebert AC4 date and time and to enable automatic time change for Daylight Saving Time

• Setup Site ID—the Liebert AC4’s location to differentiate among sites if more than one Liebert AC4 is in use

• Backup and Upload Configuration File (Service Terminal Interface only)—permits the user to copy the Liebert AC4’s configuration settings and to upload the file to the Liebert AC4

• Factory Defaults—returns the Liebert AC4 to its factory settings

• Perform Firmware Update (Service Terminal Interface only)—changes the Liebert AC4’s firmware to newest version

To change any Setup System Info features:

• From the Main Menu, use the arrows Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows Setup System, then press Enter ↵.

System and Control Options

↑↓ to choose System and

↑↓ to choose

Select Setup System Info

• From the Setup System Menu, shown at right, use the arrows to

• Use the following steps to access any of the Setup System Info options.

7.7.1 Change Password

A password is required to access the Liebert AC4’s system and control options, as described in 7.1 Login. The password consists of four characters (see Table 12 for valid characters). The default password is AAAA.

Change the Password

To change the password:

• From the Setup System Info Menu, use the arrows Change Password, then press Enter ↵.

• To change your password:

Reset Password to the Factory Default (“AAAA”)

To reset the password to the factory default of AAAA:

• Locate DIP switch 1 on the unit’s circuit board (see 1.6 Controller Board Overview) and move all switches to the OFF position (down).

Liebert® AC4

• Move the second switch to the ON position, then to the OFF position.

• Move the seventh switch to the ON position, then to the OFF position.

• Move the eighth switch to the ON position, then to the OFF position.

The password should now be AAAA.

™

choose Setup System Info and press Enter ↵.

↑↓ to choose

• Use the arrows

↑↓ to choose a character.

• Press Enter ↵ to advance to the next character position.

• When finished, press Enter ↵ again.

↑↓

7.7.2 Set Date & Time/Automatic Daylight Saving Time

Setup System Info Menu

SETUP SYSTEM INFO

CHANGE PASSWORD

> SET DATE & TIME

↑↓=NEXT ↵=SELECT SETUP SITE ID

FACTORY DEFAULTS

Set Date & Time

SET DATE & TIME

DAYLIGHT SVG TIME: Y

18-MAY-04 10:56:30

↑↓=SELECT ↵=NEXT/END

Setup System Info Menu

SETUP SYSTEM INFO CHANGE PASSWORD SET DATE & TIME ↑↓=NEXT ↵=SELECT

> SETUP SITE ID

FACTORY DEFAULTS

Setup Site ID

SETUP SITE ID

↑↓=SELECT

↵=NEXT/END

The Liebert AC4 has a built-in real-time clock that is backed up by an encapsulated lithium battery and set up to adjust automatically for daylight saving time twice a year. The Setup System Info menu allows you to set the current date or time or change the automatic adjustment at any time.

To change the daylight saving time setting or to set the current date or time:

System and Control Options

• From the Setup System Info Menu, use the arrows

Set Date & Time, then press Enter ↵.

• To change the daylight saving time setting:

• To the right of Daylight Svg Time, use the arrows choose Y (Yes - automatically adjust for daylight saving time) or N (No), then press Enter ↵.

• The format of the date and time is DD-MMM-YY HR:MM:SS. To set the current date or time:

• Press Enter ↵ to advance to the next character position you

want to change.

• Use the arrows

Date Day (DD) 0-31

Time Hour (HR) 00-23

• Press Enter ↵ to advance to the next character position.

• When finished, press Enter ↵ again.

7.7.3 Setup Site ID

You may enter a Site ID to identify the Liebert AC4’s location, using a name that may consist of up to 40 characters (see Table 12 for valid characters). The Site ID will appear with each alarm.

↑↓ to choose

↑↓ to

↑↓ to choose from available entries:

Month (MMM) JAN-DEC Year (YY) 00-99

Minutes (MM) 00-59 Seconds (SS) 00-59

To enter or change the Site ID:

• From the Setup System Info Menu, use the arrows Setup Site ID, then press Enter ↵.

• To enter a Site ID:

↑↓ to choose

• Use the arrows

↑↓ to choose a character.

• Press Enter ↵ to advance to the next character position.

• If the Site ID is less than 40 characters, you may enter an underscore (_) character to indicate the end of the name.

• When finished, press Enter ↵ again.

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System and Control Options

7.7.4 Backup and Upload Configuration File (Service Terminal Interface only)

This operation may be performed only through the Service Terminal Interface. It permits the user to make a copy of the Liebert AC4 configuration settings and save it as a file on the computer connected through the RS232 port. Should the need arise, the user can upload the configuration file from the computer to the Liebert AC4, instead of re-entering the settings manually.

To access these options:

1. Connect to the Liebert AC4 either from a remote computer or through the RS232 port (see A.2 - Connecting to the Service Terminal Interface).

2. At the Main Menu, enter 0 (zero—Setup System-Login Required).

3. At the Login Menu, enter your password.

4. At the Setup Menu, enter 5 (Setup System Information).

5. At the Setup System Information Menu, enter 4 (Backup & Upload Configuration File). The Backup & Upload Configuration File menu appears, shown below:

Backup & Upload Configuration File - Backup (Service Terminal Interface only)

BACKUP AND UPLOAD CONFIGURATION FILE

Backup from panel saves panel configurations Upload to panel restores panel configurations

Select to backup or upload file

1=BACKUP CONFIGURATION FILE 2=UPLOAD CONFIGURATION FILE 3=RETURN TO SETUP SYSTEM INFO MENU 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:1

6. Enter 1 to back up the configuration file from the Liebert AC4 to the computer and proceed to Step 8,

7. Enter 2 to upload the configuration file from the computer to the Liebert AC4 and proceed to Step 13. NOTE: This will replace the current configuration settings in the Liebert AC4 with the

most recent backup.

Liebert® AC4

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System and Control Options

Enter filename for example, AC4_CONF.SAV

Select Xmodem

Enter folder

Back Up the Configuration File

8. At the prompt to Initiate a Backup of Configuration File, enter Y (Yes - begin) or N (No - cancel). The current setting appears in brackets—[N] in the following example.

>INITIATE A BACKUP OF CONFIGURATION FILE-YES(Y) OR NO(N)? >[N] >[

NOTE

The following instructions refer to the Microsoft Windows HyperTerminal program. These steps may vary for other communications programs.

9. At the top of the HyperTerminal window, shown below, click on Transfer, then on Receive File.

10. In the Receive File window, as shown above:

• In the Use Receiving Protocol box, select Xmodem from the drop-down list.

• Click on the Receive button. (To close the window without backing up the file, click on Close or Cancel.)

11. In the Receive Filename window, enter a name for the file—for example, AC4_CONF.SAV.

12. When the transfer is complete, a confirmation message appears in the Service Terminal Interface window: “Backup Successful.”

39 Liebert® AC4

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System and Control Options

Select Xmodem

Enter filename for example, AC4_CONF.SAV

Send button

Upload the Configuration File

13. At the prompt to Initiate an Upload of Configuration File, enter Y (Yes - begin) or N (No - cancel). The current setting appears in brackets—[N] in the following example.

>INITIATE AN UPLOAD OF CONFIGURATION FILE-YES(Y) OR NO(N)? >[N] >[

NOTE

The following instructions refer to the Microsoft Windows HyperTerminal program. These steps may vary for other communications programs.

14. At the top of the HyperTerminal window, shown below, click on Transfer, then on Send File.

15. In the Send File window, as shown above:

• In the Filename box, enter the full path of the file to be uploaded—for example, AC4_CONF.SAV—or click on the Browse button to locate the file.

• In the Protocol box, select Xmodem from the drop-down list.

• Click on the Send button. (To close the window without sending the file, click on Close or Cancel.)

16. When the transfer is complete, a confirmation message—“Upload Successful”—appears in the Service Terminal Interface window and the Liebert AC4 reboots with the new configuration.

Liebert® AC4

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7.7.5 Factory Defaults

Setup System Info Menu

SETUP SYSTEM INFO CHANGE PASSWORD SET DATE & TIME ↑↓=NEXT ↵=SELECT

SETUP SITE ID

> FACTORY DEFAULTS

Factory Defaults

RESTORE ALL DEFAULTS ARE YOU SURE? N

↑↓=Y/N ↵=END

At any time, you may restore all default values for settings in the Liebert AC4 as it was shipped.

NOTE

This action will overwrite any configuration settings. You may want to back up your settings before restoring the factory defaults. See Backup and Upload Configuration File

(Service Terminal Interface only) in A.6.5 - Setup System Info for details on backing up settings using the Service

Terminal Interface.

The password is the sole exception when reverting to the factory default settings. The password can be reset to the factory default of AAAA through the DIP switches. For details, see Change Password on page 36.

7.7.6 Perform Firmware Update (Service Terminal Interface only)

This function, which may be performed only through the Service Terminal Interface, upgrades the Liebert AC4’s firmware to the newest version.

NOTE

This action will overwrite any configuration settings. You may want to back up your settings before restoring the factory defaults. See Backup and Upload Configuration File (Service Terminal Interface only) in A.6.5 - Setup System Info for details on backing up settings using the Service Terminal Interface.

System and Control Options

• Connect to the Liebert AC4 either from a remote computer or through the RS232 port (see A.2 - Connecting to the Service Terminal Interface).

• At the Main Menu, enter 0 (zero—Setup System-Login Required).

• At the Login Menu, enter your password.

• At the Setup Menu, enter 5 (Setup System Information).

• At the Setup System Info menu, enter 6 (Perform Firmware Update).

• At the Perform Firmware Update menu, shown below, enter 1 to proceed with an update.

Firmware Update (Service Terminal Interface only)

PERFORM FIRMWARE UPDATE

This command will update the existing firmware

1=PERFORM FIRMWARE UPDATE 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

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System and Control Options

Select Xmodem

Enter filename -

prog###.s19 or flash###.s19

Send button

To perform the update:

1. At the Perform Firmware Update prompt, enter Y (Yes - begin) or N (No - cancel). The current setting appears in brackets—[N] in the following example.

>PERFORM FIRMWARE UPDATE-YES(Y) OR NO(N)? >[N] >[

NOTE

The following instructions refer to the Microsoft Windows HyperTerminal program. These steps may vary for other communications programs.

2. The firmware update is a two-step process—this step describes how to upload the file prog###.s19 (where ### is a number—for example, prog118.s19) to the Liebert AC4:

a. At the top of the HyperTerminal window, shown below, click on Transfer, then on Send File.

b. In the Send File window, as shown above:

• In the Filename box, enter the full path of the file to be uploaded—prog###.s19—or click on the Browse button to locate the file.

• In the Protocol box, select Xmodem from the drop-down list.

• Click on the Send button. (To close the window without sending the file, click on Close or Cancel.)

• When the transfer is complete, a confirmation message appears in the Service Terminal Interface window.

3. Next, follow these steps to upload the file flash###.s19 (where ### is a number—for example, flash512.s19) to the Liebert AC4:

a. At the top of the HyperTerminal window, shown above, click on Transfer, then on Send File. b. In the Send File window, shown above:

• In the Filename box, enter the full path of the file to be uploaded—flash###.s19—or click on the Browse button to locate the file.

• In the Protocol box, select Xmodem from the drop-down list.

• Click on the Send button. (To close the window without sending the file, click on Close or Cancel.)

• When the transfer is complete, a confirmation message—“Firmware Update Successful”— appears in the Service Terminal Interface window and the Liebert AC4 reboots with the new firmware update.

Liebert® AC4

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7.8 Setup Operation

Setup System Menu

SETUP INPUTS SETUP COMMON ALARM SETUP ZONES ↑↓=NEXT ↵=SELECT

SETUP OUTPUTS SETUP SYSTEM INFO

> SETUP OPERATION

Setup Operation Menu

> AUTO SEQUENCING OFF

STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT ↵=SELECT

HOLD DELAY : 10:00 RESTART : 00:06

The Liebert AC4 operation features allow you to set up a rotation sequence to alternate which devices are operating and which are placed on Standby, as well as test devices while in Standby mode and specify what to do when a Standby device goes into alarm as it is powered up. You may also specify delay times after an output changes state, directing the Liebert AC4 to wait before acknowledging inputs or turning an output on or off.

To change any operation features:

• From the Main Menu, use the arrows

Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows

Setup System, then press Enter ↵.

Select Setup Operation

• From the Setup System Menu, shown at right, use the arrows

choose Setup Operation and press Enter ↵.

• Use the steps following Table 18 to access any of the Setup Operation options.

Table 18 shows the default settings for operation options: automatic sequencing, standby testing, failed standby, hold delay and restart.

Table 18 Default settings - operation features

Feature Default Other Options

AUTO SEQUENCING OFF (Deactivated) ON (Activated), 12h (Activated for 12-hour intervals)

STANDBY TESTING OFF (Deactivated) ON (Activated)

FAILED STANDBY N (Deactivated) Y (Activated)

HOLD DELAY 10:00 (No delay) Any time (in minutes and seconds) from 00:00 to 99:59

RESTART 00:06 (No delay) Any time (in minutes and seconds) from 00:00 to 99:59

System and Control Options

↑↓ to choose System and

↑↓ to choose

↑↓ to

43 Liebert® AC4

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7.8.1 Turn Automatic Sequencing On or Off

Setup Operation Menu

> AUTO SEQUENCING OFF

STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT ↵=SELECT

HOLD DELAY : 10:00 RESTART : 00:06

Activate / Deactivate

> AUTO SEQUENCING OFF

↑↓=NEXT

↵=EDIT

Set Interval & Start Time (1- to 99-Day Interval)

> AUTO SEQUENCING ON

EVERY 0

3 DAYS

AT 00:00

↑↓=NEXT

↵=EDIT

Set Start Time (12-Hour Interval)

> AUTO SEQUENCING 12h

AT 00

:00

↑↓=NEXT ↵=EDIT

Use automatic sequencing to set up a schedule for rotation of redundant devices. For example, three devices might be in operating mode while a fourth device is in standby mode. Every two days, the Liebert AC4 returns the standby device to operating mode and places one of the operating devices on standby.

When zones are used, the Liebert AC4 manages the rotation sequence for each zone separately, so each zone might have one device in operating mode and one in standby mode.

Auto sequencing is OFF (deactivated) by default. When auto sequencing is activated (ON or 12h, for a 12-hour interval), the Liebert AC4 cycles devices at the specified interval and time of day as follows:

• An output device in Standby mode is returned to Operating mode.

• An output device that is Operating is put in Standby mode.

When more than one device is in Standby mode or turned On, the Liebert AC4 performs the operations in a sequence that rotates the order. For example, in a sequence set up to occur every two days:

• Monday: Device 1 is placed on Standby, and Devices 2, 3 and 4 operate.

• Wednesday: Device 2 is placed on Standby, and Devices 1, 3 and 4 operate.

• Friday: Device 3 is placed on Standby, and Devices 1, 2 and 4 operate.

• Sunday: Device 4 is placed on Standby, and Devices 1, 2 and 3 operate.

NOTE

The Liebert AC4 will not cycle outputs that have been manually forced On or Off through the Override Output Menu or the hardware switch (see 7.9 Override Output).

System and Control Options

To change the auto sequencing settings:

1. From the Setup System Operation Menu, use the arrows

choose Auto Sequencing, then press Enter ↵.

2. In the Activate / Deactivate screen, use the arrows of three options:

a. ON for intervals of every 1 to 99 days, then press Enter ↵ and

b. 12h for an interval of every 12 hours, then press Enter ↵ and

c. OFF to deactivate auto sequencing, then press Enter ↵ to

3. Select the interval for how often the sequencing should occur in the

Every 0

from 0 to 99 days.

4. Specify the time of day the sequencing should begin in the At 00 field. The format is HH:MM for hours and minutes.

↑↓ to choose one

proceed to Step 3.

proceed to Step 4.

return to the previous menu.

3 Days field. The default is 3 days; valid entries range

• For each digit, use the arrows

↑↓ to choose a number from 0 to

9, then press Enter ↵ to advance to the next digit.

• When finished, press Enter ↵ to set the time of day.

• Use the arrows

↑↓ to choose from available entries for hours

(00-23), then press Enter ↵ to advance to minutes.

• Use the arrows

↑↓ to select minutes (00-59).

• When finished, press Enter ↵ again.

↑↓ to

:00

Liebert® AC4

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7.8.2 Turn Standby Testing On or Off

Setup Operation Menu

AUTO SEQUENCING OFF

> STANDBY TESTING OFF

FAILED STANDBY N ↑↓=NEXT ↵=SELECT

HOLD DELAY : 10:00 RESTART : 00:06

Change Standby Testing

> STANDBY TESTING ON

EVERY 0

3 DAYS

AT 00:00 FOR 10 MIN

↑↓=NEXT

↵=EDIT

Setup Operation Menu

AUTO SEQUENCING OFF STANDBY TESTING OFF

> FAILED STANDBY N

↑↓=NEXT ↵=SELECT HOLD DELAY : 10:00

RESTART : 00:06

Change Failed Standby

> FAILED STANDBY N

↑↓=NEXT ↵=END

Standby testing permits scheduling an automatic operational check of devices in Standby mode.

When this feature is activated (ON), the Liebert AC4 tests all devices in Standby mode by putting each device in operating mode for a designated time. You may specify the time of day the testing begins, the duration of the test and the interval between tests. Standby testing is OFF (deactivated) by default.

To change the standby testing settings:

System and Control Options

• From the Setup System Operation Menu, use the arrows

choose Standby Testing, then press Enter ↵.

• In the Change Standby Testing screen, press Enter ↵ to edit

Standby Testing, then use the arrows or OFF to deactivate the standby testing feature. Press Enter ↵.

• Select the desired interval for how frequently the testing should occur in the Every 0

3 Days field. The default is 3 days; valid

entries range from 0 to 99 days.

• For each digit, use the arrows

9, then press Enter ↵ to advance to the next digit.

• When finished, press Enter ↵ to configure the time of day.

• Specify the time of day the test should begin in the At 00 The format is HH:MM for hours and minutes.

• Use the arrows

↑↓ to choose from available entries for hours

(00-23), then press Enter ↵ to advance to minutes.

• Use the arrows

↑↓ to select minutes (00-59).

• When finished, press Enter ↵ again.

• Specify the duration of the test in minutes—the length of time the standby units will be turned On—in the For 10 Min field. Use the arrows default is 10 minutes.

• When finished, press Enter ↵.

7.8.3 Specify Failed Standby Response

The Liebert AC4’s Failed Standby feature determines what happens when an operating device fails and a standby device then becomes an operating unit. A subsequent alarm in the newly operating unit (previously the standby device) results in either restarting the previously operating device that was alarmed or not. This feature specifies whether each device remains in its current state or returns to its previous state of operation.

↑↓ to

↑↓ to choose ON to activate

↑↓ to choose a number from 0 to

:00 field.

↑↓ to choose a number from 0 to 59 minutes. The

When this feature is activated (Y), each device returns to its previous state, as Table 19 shows: the newly enabled Standby device is disabled and the previously operating device is returned to Operating mode. The default setting is N (deactivated), meaning that each device remains in its current state: the Standby device remains enabled and the previously operating unit remains disabled.

Table 19 Failed Standby response

Failed Standby

Setting

Activated (Y) Disabled Returned to Operating mode

Deactivated (N) Remains enabled Remains disabled

To change the Failed Standby settings:

• From the Setup System Operation Menu, use the arrows choose Failed Standby, then press Enter ↵.

• In the Change Failed Standby screen, press use the arrows choose Y to activate or N to deactivate the feature.

• Press Enter ↵.

Previous Standby Device

(alarm after being enabled)

Previously Operating

Device

↑↓ to

45 Liebert® AC4

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7.8.4 Specify Hold Delay Time

Setup Operation Menu

AUTO SEQUENCING OFF STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT ↵=SELECT

> HOLD DELAY : 10:00

RESTART : 00:06

Hold Delay Time

HOLD DELAY 10

MIN : 00 SEC

↑↓=NEXT

↵=EDIT

Setup Operation Menu

AUTO SEQUENCING OFF STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT ↵=SELECT

HOLD DELAY : 10:00

> RESTART : 00:06

Restart Delay Time

RESTART DELAY 00

MIN : 06 SEC

↑↓=NEXT

↵=EDIT

After an output changes state, the hold delay timer directs the Liebert AC4 to ignore all inputs in the same zone for the specified time.

This delay is the amount of time that must elapse before the Liebert AC4 acknowledges a change of state in any input. The default is 10 minutes (displayed as 10 MIN : 00 SEC).

The time delay applies only when a monitored output device changes from its normal state—for example, the Liebert AC4 detects a closed contact that is defined as Normally Open.

When the output device returns to its normal state, the Liebert AC4 acknowledges any input change of state immediately.

The hold delay timer also takes effect when the Liebert AC4 is powered up. All alarms are ignored until the hold delay time expires.

• From the Setup Operation Menu, choose Hold Delay, as shown at right, and press Enter ↵.

• To change the time delay in minutes and seconds (in the range of 00:00 to 99:59):

• For minutes (MIN), press and hold one of the arrow keys

• Press Enter ↵ to advance to seconds (SEC).

• For seconds (SEC), press and hold one of the arrow keys

• When finished, press Enter ↵ again.

System and Control Options

↑↓ scroll through the numbers 00-99.

↑↓ scroll through the numbers 00-59.

7.8.5 Specify Restart Time

The restart delay timer directs the Liebert AC4 to wait a specified time before changing the state of an output. This feature can prevent needless responses to transient conditions.

If two or more outputs change state simultaneously, the Liebert AC4 begins a new countdown between each output change of state.

The default is 6 seconds (displayed as 00 MIN : 06 SEC).

• From the Setup Operation Menu, choose Restart, as shown at right, and press Enter ↵.

• To change the time delay in minutes and seconds (in the range of 00:00 to 99:59):

• For minutes (MIN), press and hold one of the arrow keys scroll through the numbers 00-99.

• Press Enter ↵ to advance to seconds (SEC).

• For seconds (SEC), press and hold one of the arrow keys

• When finished, press Enter ↵ again.

↑↓

↑↓ scroll through the numbers 00-59.

Liebert® AC4

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7.9 Override Output

Main Menu

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

AAAA

↑↓=SELECT ↵=NEXT/END

System & Control Menu

SETUP SYSTEM

> OVERRIDE OUTPUT

CLEAR ALARMS & LOGS

↑↓=NEXT

↵=SELECT

Select Output

OVERRIDE OUTPUT

> DEVICE_1 AUTO

DEVICE_2 AUTO ↑↓=NEXT ↵=SELECT

DEVICE_3 AUTO DEVICE_4 FORCE ON

Override Output

SELECT DEVICE_1

FORCE ON

↑↓=SELECT ↵=END

System and Control Options

The Override Output feature allows you to manually change the state of any digital output to ON or OFF, overriding automatic control by the Liebert AC4

(the default setting for all outputs). This menu

also allows you to release the manual override, returning any output to automatic control.

There are two ways to override automatic control of outputs:

• Use the Override Output menu, as described in this section, to turn any output ON or OFF.

• Use the hardware switch on the circuit board to force all four outputs ON at the same time (see Item F - Manual Override Switch (outputs) in 1.6 Controller Board Overview).

After an output is forced manually ON or OFF, it remains in that state until returned to automatic control through this menu.

Table 20 summarizes the four types of control, including the abbreviated message that appears on the LCD and in log reports.

Table 20 Automatic / manual control - output points

Message Description

AUTO Automatic

FORCE ON Manually ON This output has been forced ON

FORCE OFF Manually OFF

HW FORCE ON

Manually ON (all outputs)

Controlled by Liebert AC4 (default for all outputs)

(operating) or OFF via the Override Output menu

All outputs have been forced ON (operating) via the hardware switch on the circuit board (see Item F - Manual

Override Switch (outputs) in

1.6 Controller Board Overview)

To force an output point ON or OFF or return it to automatic control:

• From the Main Menu, use the arrows Control, then press Enter ↵ (see 7.1 Login for help).

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows Override Output, then press Enter ↵.

Select an Output

The Select Output menu, shown at right, displays the current status of all four outputs.

• Use the arrows Device_1—and press Enter ↵.

Turn Output ON or OFF / Return to Automatic

• From the Override Output menu, use the arrows of these options:

• Press Enter ↵.

↑↓ to choose System and

↑↓ to choose

↑↓ to choose the output you want—for example,

↑↓ to choose one

• AUTO - return to automatic control

• FORCE ON - manually turn this output ON (operating)

• FORCE OFF - manually turn this output OFF

47 Liebert® AC4

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7.10 Clear Alarms & Logs

Main Menu

VIEW STATUS

> SYSTEM AND CONTROL

↑↓=NEXT

↵=SELECT

AAAA

↑↓=SELECT ↵=NEXT/END

System & Control Menu

SETUP SYSTEM OVERRIDE OUTPUT

> CLEAR ALARMS & LOGS

↑↓=NEXT

↵=SELECT

Clear Alarms/Logs Menu

> CLEAR ACTIVE ALARMS

CLEAR ALARM LOG CLEAR EVENT LOG

↑↓=NEXT

↵=SELECT

Clear Active Alarms

CLEAR ACTIVE ALARMS ARE YOU SURE? N

↑↓=Y/N ↵=END

Clear Alarms/Logs Menu

CLEAR ACTIVE ALARMS

> CLEAR ALARM LOG

CLEAR EVENT LOG

↑↓=NEXT

↵=SELECT

Clear Alarm Log

CLEAR ALARM LOG ARE YOU SURE? N

↑↓=Y/N ↵=END

Clear Alarms/Logs Menu

CLEAR ACTIVE ALARMS CLEAR ALARM LOG

> CLEAR EVENT LOG

↑↓=NEXT

↵=SELECT

Clear Event Log

CLEAR EVENT LOG ARE YOU SURE? N

↑↓=Y/N ↵=END

The Clear Alarms & Logs menu allows you to clear active alarms or delete all records from either of the Liebert AC4 alarm and event logs.

To clear alarms or logs:

• From the Main Menu, use the arrows

• Enter your password at the Login screen.

• From the System and Control Menu, use the arrows

• Use the following steps to clear alarms or delete log records.

System and Control Options

↑↓ to choose System and

Control, then press Enter ↵ (see 7.1 Login for help).

↑↓ to choose

Clear Alarms & Logs, then press Enter ↵.

7.10.1 Clear Active Alarms

To clear all active alarms:

• From the Clear Alarms/Logs Menu, use the arrows Clear Active Alarms, then press Enter ↵.

• Use the arrows N (No - do not clear alarms), then press Enter ↵.

7.10.2 Clear the Alarm Log

7.10.3 Clear the Event Log

The alarm log contains up to 99 records of alarms that have occurred. You may want to clear the log after backing up the file or simply to free up space.

To delete all records from the alarm log:

• From the Clear Alarms/Logs Menu, use the arrows Clear Alarm Log, then press Enter ↵.

• Use the arrows N (No - do not clear the alarm log), then press Enter ↵.

The event log contains up to 99 records of events detected by the Liebert AC4. You may want to clear the log after backing up the file or simply to free up space.

↑↓ to choose

↑↓ to choose Y (Yes - clear all active alarms) or

NOTE

Clear active alarms is the only means to reset Latched alarms. This action must be taken to return Latched points to their normal state. To set up a digital input as latched, see 7.3.4 Set Up Alarmable Inputs in Latched or Unlatched Mode.

NOTE

Before deleting the records in the alarm log, you may want to back up the file to a computer, as described in 6.2 Back Up Log Files (Service Terminal Interface only).

↑↓ to choose

↑↓ to choose Y (Yes - clear the alarm log) or

NOTE

Before deleting the records in the event log, you may want to back up the file to a computer, as described in 6.2 Back Up Log Files (Service Terminal Interface only).

To delete all records from the event log:

• From the Clear Alarms/Logs Menu, use the arrows Clear Event Log, then press Enter ↵.

• Use the arrows press Enter ↵.

Liebert® AC4

™

↑↓ to choose

↑↓ to choose Y (Yes - clear the event log) or N (No - do not clear the event log), then

8.0 SPECIFICATIONS

8.1 Liebert AC4 Specifications

Specifications

Power Requirements

Dimensions W x D x H, in. (mm)

Weight (Assembled) 7.68 lbs (3.48 kg)

Enclosure Type NEMA 1

Liquid Crystal Display (LCD) Four line, 20 character, backlit

Mounting Surface Building Wall or Structural Member

Ambient Operating Environment

Processor Specifics

Model Motorola XC68HC812A4

Clock speed 16MHz

Total RAM 32Kb

Total FLASH 4M

Total EEPROM 4K

A/D Resolution (Analog IN) 12 Bit

Clock Type Real-Time Clock

Clock battery backup type Lithium Cell (non-replaceable)

Clock battery life 7 years, constant, no power

Communications

Local Communications RS232

Agency Listings

UL UL3121

CE Yes

FCC Compliance CFR 47 Part 15

Inputs & Outputs (Quantity)

Digital Inputs (4)

Digital Outputs (4) 24VAC, 3A

Common Alarm Outputs (2) 24VAC, 3A

24VAC ±10% of nominal 50/60 Hz

1.3A, 30VA

14-1/4 x 2-3/4 x 12 (361.95 x 69.85 x 304.8)

32°F to 104°F (0°C to 40°C) 0% RH to 95% RH (non-condensing)

Dry Contact Closure 24VDC, 10 mA

NOTE

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

49 Liebert® AC4

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Specifications

Liebert® AC4

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Service Terminal Interface

APPENDIX A- SERVICE TERMINAL INTERFACE

The Service Terminal Interface allows access to all functions of the Liebert AC4, including some that are not possible through the LCD interface. This interface is accessible through any computer using a communications program such as Microsoft

Windows® HyperTerminal.

This appendix provides directions for connecting to the Service Terminal Interface, an overview of each type of function and sample screens for each menu available through the Service Terminal Interface. References to more detailed instructions about each function are provided.

A.1 COMPARISON OF FUNCTIONS: LCD AND SERVICE TERMINAL INTERFACE

Table 21 lists all functions for viewing and configuring the Liebert AC4 and shows whether they can be performed through the LCD interface and where to find information.

Table 21 Guide to Liebert AC4 functions

Can be performed via: Where to find:

Function

VIEW STATUS FUNCTIONS

View Active Alarms ✔✔ page 19 page 57

View Alarm Log ✔✔ page 20 page 58

View Event Log ✔✔ page 21 page 59

View Input Status ✔✔ page 22 page 59

View Output Status ✔✔ page 23 page 60

SILENCE ALARM & BACK UP LOGS FUNCTIONS

Silence Alarm (On the LCD, press any key to silence an alarm)

Back Up Log Files — ✔ page 25 page 62

SYSTEM & CONTROL FUNCTIONS

Setup System ✔✔ page 29 page 64

Setup Inputs ✔✔ page 29 page 65

Setup Common Alarm ✔✔ page 32 page 66

Setup Zones ✔✔ page 33 page 66

Setup Outputs ✔✔ page 34 page 67

Setup System Info ✔✔ page 36 page 68

Change Password ✔✔ page 36 page 68

Set Date & Time/Automatic Daylight Saving Time ✔✔ page 37 page 69

Setup Site ID ✔✔ page 37 page 69

Backup and Upload Configuration File — ✔ page 38 page 70

Factory Defaults ✔✔ page 41 page 71

Perform Firmware Update — ✔ page 41 page 72

Setup Operation ✔✔ page 43 page 73

Override Output ✔✔ page 47 page 76

Clear Alarms & Logs ✔✔ page 48 page 77

Clear Active Alarms ✔✔ page 48 page 77

Clear the Alarm Log ✔✔ page 48 page 77

Clear the Event Log ✔✔ page 48 page 78

LCD

✔✔ page 24 page 61

Service

Terminal

Instructions on

using function

Service Terminal screen examples

51 Liebert® AC4

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Connecting to the Service Terminal Interface

A.2 CONNECTING TO THE SERVICE TERMINAL INTERFACE

This section describes how to set up and connect to the Service Terminal Interface. To access the Service Terminal Interface, you will need:

• A null modem cable to connect a computer’s COM1 port to the Liebert AC4’s RS232 port.

• A communications program, such as HyperTerminal, to connect to the Service Terminal Interface.

Refer to following sections for step-by-step instructions to set up a connection (one time) and use that connection to access the Service Terminal Interface:

• A.2.1 - Create a Connection

• A.2.2 - Connect to the Service Terminal Interface

The instructions in this section refer to the HyperTerminal program—they may vary for other communications programs.

Liebert® AC4

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A.2.1 Create a Connection

Enter a name for the connection

- for example, AC4

Choose COM1

COM1 Properties

Before connecting to the Service Terminal Interface, you must create a connection and specify the method to be used for connection, as described in the following steps.

1. Start the HyperTerminal program—to do this, click on the Start button, then on Programs, then Accessories, then Communications, and finally HyperTerminal.

2. At the top of the HyperTerminal window, click on File, then on New Connection, as shown below left.

Connecting to the Service Terminal Interface

3. In the Connection Description window, shown above right, enter a name for the connection—for example, AC4. This becomes the file name (with the extension “.ht”).

4. Click OK to close the window. The Connect To window opens, as shown at right.

Specify COM Port Connection

5. In the Connect To window, select COM1 from the Connect Using drop-down list.

6. Click OK. This opens the COM1 Properties window.

COM1 Port Setup

7. In the COM1 Properties window, shown at right, make the following selections:

• Bits per second: 9600

• Data bits: 8

•Parity: None

• Stop bits: 1

• Flow control: None

8. Click OK. When the connection is open, the connection name appears in the title bar of the HyperTerminal window. To complete the setup, continue with Step 9 (next section).

53 Liebert® AC4

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Connecting to the Service Terminal Interface

Settings tab

ASCII Setup button

Properties Setup

9. Open the Properties window by clicking on File, then on Properties, as shown below left.

10. In the Properties window, above right, click on the Settings tab and choose the following settings:

• Function, arrow, and ctrl keys act as: Terminal keys

• Backspace key sends: Ctrl+H

• Emulation: ANSIW

• Telnet terminal ID: VT100

• Backscroll buffer lines: 500

• Play sound when connecting or disconnecting: Unchecked

ASCII Setup

11. In the Properties window, click on the ASCII Setup button, shown below left.

12. In the ASCII Setup window, shown above right, choose the following settings:

• ASCII Sending: place a check mark (

• ASCII Receiving: place a check mark ( box.

•Click OK.

The setup is now complete. To use the new connection, proceed to the next section, A.2.2 - Connect to the Service Terminal Interface.

✔) in the Send Line Ends With Line Feeds box.

✔) in the Wrap Lines That Exceed Terminal Width

Liebert® AC4

™

A.2.2 Connect to the Service Terminal Interface

Click on the file name for example,

AC4.ht

After creating and setting up a connection, use a communications program such as HyperTerminal to access the Liebert AC4’s Service Terminal Interface.

1. Verify communications connections between the remote computer and the Liebert AC4. Connect a null modem cable from the computer’s COM1 port to the Liebert AC4’s RS232 port (for location, see 3.4 - RS232 Connector).

2. Start the HyperTerminal program—click on the Start button, then on Programs, then Accessories, then Communications, and finally HyperTerminal.

3. Open the Liebert AC4 connection created in A.2.1 - Create a Connection. To do this, click on File, then on Open, as shown below.

Connecting to the Service Terminal Interface

4. In the Open window, shown above right, select the file name—AC4.ht in this example—and then click on the Open button.

5. Press Enter (or Escape) to initiate communication and bring up the Main Menu.

For more information on the Liebert AC4’s options:

• See A.3 - Overview of Menus for examples of the Service Terminal Interface screens.

• See Table 21 to locate step-by-step instructions for each Liebert AC4 function.

55 Liebert® AC4

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A.3 OVERVIEW OF MENUS

The Main Menu offers choices for viewing the status of the Liebert AC4, silencing the audible alarm and backing up the unit’s log files. It also allows access to the System and Control features, which require a password.

The following shows where to find examples of the Main Menu screens:

Main Menu For sample screens, see:

1=VIEW ACTIVE ALARMS A.4 - View Status Menus

2=VIEW ALARM LOG

3=VIEW EVENT LOG

4=VIEW INPUT STATUS

5=VIEW OUTPUT STATUS

6=SILENCE ALARM A.5 - Silence Alarm & Back Up

0=SETUP SYSTEM-LOGIN REQUIRED A.6 - Setup Menu

Overview of Menus

Log Files (Service Terminal Interface only)7=BACKUP LOG FILES

A.3.1 View Status Overview

The View Status features are available to all users. This permits all personnel to check on the status of any equipment or location being monitored. These options allow any user to:

• View active alarms

• View the current status of all inputs and outputs

• View data stored in alarm and event logs

A.3.2 Silence Alarm and Backup Log Files

Two Main Menu options—Silence Alarm and Backup Log Files—are unique to the Service Terminal Interface. As with the View Status options, these features do not require a password:

• Silence Alarm—silence the Liebert AC4’s audible alarm and reset the Common Alarm Relay output.

• Backup Log Files—make backup copies of the Liebert AC4’s Alarm Log and Event Log and save the copies to a computer.

A.3.3 Setup Menu Overview

The Setup Menu options require a password. Authorized users may:

• Configure the Liebert AC4—this includes setting up digital inputs and outputs and system features such as setting the date and time

Two system features—Backup and Upload Configuration File and Firmware Update—are unique to the Service Terminal Interface.

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

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

Liebert® AC4

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A.4 VIEW STATUS MENUS

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

Main Menu

After connecting to the Service Terminal Interface, the Main Menu appears, as shown below. This section presents Service Terminal Interface screens for options 1 through 5:

Main Menu

LIEBERT AC4

VX.XXX.X

View Status Menus

MAIN MENU

1=VIEW ACTIVE ALARMS Section A.4.1

2=VIEW ALARM LOG Section A.4.2

3=VIEW EVENT LOG Section A.4.3

4=VIEW INPUT STATUS Section A.4.4

5=VIEW OUTPUT STATUS Section A.4.5

6=SILENCE ALARM

7=BACKUP LOG FILES

0=SETUP SYSTEM-LOGIN REQUIRED

SELECT A NUMBER:1

A.4.1 View Active Alarms

For details on this feature, see 5.1 - View Active Alarms.

View Active Alarms

ACTIVE ALARMS

For sample screens, see:

Input points/hardware presently in an alarm state

DEVICE_1 ALARM CONTACT CLOSED

1=REFRESH ACTIVE ALARMS 2=RETURN TO MAIN MENU

SELECT A NUMBER:

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A.4.2 View Alarm Log

For details on this feature, see 5.2 - View Alarm Log.

View Alarm Log

ALARM LOG

Alarm history

DEVICE_1 ALARM CONTACT CLOSED 29-AUG-02 09:29:10

NO STANDBY AVAILABLE 29-AUG-02 09:20:10

STANDBY DEVICE FAILED 29-AUG-02 09:19:10

NO RESTART AVAILABLE 29-AUG-02 09:19:10

View Status Menus

<ENTER>=MORE <ESC>=EXIT <A>=ALL

DEVICE_2 ALARM CONTACT CLOSED 28-AUG-02 09:29:10

1=REFRESH ALARM LOG 2=RETURN TO MAIN MENU

SELECT A NUMBER:

Liebert® AC4

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A.4.3 View Event Log

For details on this feature, see 5.3 - View Event Log.

View Event Log

EVENT LOG

Event history

SYSTEM USER LOGIN 07-MAY-02 10:29:10

DEVICE_1 HW FORCE ON CONTACT CLOSED 07-MAY-02 09:50:10

DEVICE_4 FORCE OFF CONTACT OPEN 07-MAY-02 09:20:10

DEVICE_3 AUTO CONTACT OPEN 07-MAY-02 06:20:10

View Status Menus

<ENTER>=MORE <ESC>=EXIT <A>=ALL

DATE AND TIME SET 06-MAY-02 07:10:10

DEVICE_4 FORCE OFF CONTACT CLOSED 07-MAY-02 06:20:10

1=REFRESH EVENT LOG 2=RETURN TO MAIN MENU

SELECT A NUMBER:

A.4.4 View Input Status

For details on this feature, see 5.4 - View Input Status.

View Input Status

INPUT STATUS

Input status from device

INPUT STATUS

DEVICE_1 NORMAL DEVICE_2 ALARM DEVICE_3 EVENT DEVICE_4 ALARM

1=REFRESH INPUT 2=RETURN TO MAIN MENU

SELECT A NUMBER:1

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A.4.5 View Output Status

For details on this feature, see 5.5 - View Output Status.

View Output Status

OUTPUT STATUS

Output status to device

View Status Menus

OUTPUT STATE MODE ZONE

DEVICE_1 ON ALARM 1 DEVICE_2 ON OPERATING 1 DEVICE_3 OFF STANDBY 1 DEVICE_4 OFF ALARM 1

1=REFRESH OUTPUT STATUS 2=RETURN TO MAIN MENU

SELECT A NUMBER:

***************************************** OPERATING = OPERATING/ON STANDBY = IN STANDBY MODE ALARM = IN ALARM FORCE ON = FORCE ON BY OPERATOR FORCE OFF = FORCE OFF BY OPERATOR HW FORCE ON = FORCE ON BY HARDWARE SWITCH PENDING = PENDING DELAY TIMER NOT USED = DEVICE NOT USED *****************************************

Liebert® AC4

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Silence Alarm & Back Up Log Files (Service Terminal Interface only)

A.5 SILENCE ALARM & BACK UP LOG FILES (SERVICE TERMINAL INTERFACE ONLY)

This section presents two options from the Main Menu that are available via the Service Terminal Interface only.

Main Menu

After connecting to the Service Terminal Interface, the Main Menu appears, as shown below. This section presents Service Terminal Interface screens for options 6 and 7:

Main Menu

LIEBERT AC4

V5.300.2

MAIN MENU

1=VIEW ACTIVE ALARMS

2=VIEW ALARM LOG

3=VIEW EVENT LOG

4=VIEW INPUT STATUS

5=VIEW OUTPUT STATUS

6=SILENCE ALARM Section A.5.1

7=BACKUP LOG FILES Section A.5.2

0=SETUP SYSTEM-LOGIN REQUIRED

SELECT A NUMBER:1

For sample screens, see:

A.5.1 Silence Alarm (Service Terminal Interface only)

For details on this feature, see 6.1 - Silence Alarm (Service Terminal Interface).

Silence Alarm

SILENCE ALARM

Silence alarm and reset common alarm relay if common alarm relay is configured to reset with silence alarm

1=SILENCE ALARM 2=RETURN TO MAIN MENU

SELECT A NUMBER:1

>ALARM HAS BEEN SILENCED

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Silence Alarm & Back Up Log Files (Service Terminal Interface only)

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

For details on this feature, see 6.2 - Back Up Log Files (Service Terminal Interface only).

Back Up Alarm Log File

Backup Log Files - Alarm Log File

BACKUP LOG FILES

Backup alarm and event log files

1=BACKUP ALARM LOG FILE 2=BACKUP EVENT LOG FILE 3=RETURN TO MAIN MENU

SELECT A NUMBER:1

>INITIATE A BACKUP OF ALARM LOG-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM BACKUP: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT RECEIVE FILE

- ENTER FOLDER WHERE FILE IS TO BE RECEIVED

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT RECEIVE BUTTON AND ENTER FILE NAME, E.G., ALARM.LOG

>BACKUP SUCCESSFUL

Back Up Event Log File

Backup Log Files - Event Log File

BACKUP LOG FILES

Backup alarm and event log files

1=BACKUP ALARM LOG FILE 2=BACKUP EVENT LOG FILE 3=RETURN TO MAIN MENU

SELECT A NUMBER:2

>INITIATE A BACKUP OF EVENT LOG-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM BACKUP: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT RECEIVE FILE

- ENTER FOLDER WHERE FILE IS TO BE RECEIVED

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT RECEIVE BUTTON AND ENTER FILE NAME, E.G., EVENT.LOG

>BACKUP SUCCESSFUL

Liebert® AC4

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A.6 SETUP MENU

The Setup menu allows the user to configure the Liebert AC4—setting up inputs, outputs and system features such as date and time, as well as operation options such as a rotation sequence and standy testing. This menu also provides a vehicle for manually changing the state of an output to ON or OFF, clearing active alarms and deleting records from the Liebert AC4’s alarm and event logs.

Main Menu

After connecting to the Service Terminal Interface, the Main Menu appears, as shown below.

Main Menu

LIEBERT AC4

VX.XXX.X

MAIN MENU

1=VIEW ACTIVE ALARMS 2=VIEW ALARM LOG 3=VIEW EVENT LOG 4=VIEW INPUT STATUS 5=VIEW OUTPUT STATUS 6=SILENCE ALARM 7=BACKUP LOG FILES 0=SETUP SYSTEM-LOGIN REQUIRED

Setup Menu

SELECT A NUMBER:0

• Choose 0 to access the features illustrated in this section.

Login Menu

The System and Control options require a password to prevent unauthorized users from making changes to the system. After choosing 0 in the Main Menu above, the Login Menu appears:

YOU MUST LOGIN TO PERFORM SETUP OR TO MAKE CHANGES

>****

>INVALID PASSWORD, ENTER AGAIN >PRESS <ESC> TO EXIT

• Enter the password, and the Setup Menu appears, as shown in the following section.

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Setup Menu

>CHANGE LABEL(8 CHARACTERS MAX). >[DEVICE_1] >[ >COMMAND SUCCESSFUL

>IS INPUT NORMALLY OPENED(NO) OR NORMALLY CLOSED(NC)? >[NO] >[ >COMMAND SUCCESSFUL

Values that may be entered shown in parentheses ( )

Current setting shown in brackets [ ]

This section presents Service Terminal Interface screens for each of the following:

Setup Menu

SETUP MENU

1=SETUP INPUTS Section A.6.1 Configure digital inputs

2=SETUP COMMON ALARM Section A.6.2 Set up the common alarm to reset with silence

3=SETUP ZONES Section A.6.3 Define areas with 2-4 devices each

4=SETUP OUTPUTS Section A.6.4 Configure digital outputs

5=SETUP SYSTEM INFORMATION* Section A.6.5 Set up features such as password and date & time*

6=SETUP OPERATION Section A.6.6 Set up rotation sequence, standby testing

7=OVERRIDE OUTPUT Section A.6.7 Manually override automatic control of outputs

8=CLEAR ALARMS&LOGS Section A.6.8 Clear active alarms; clear alarm and event logs

9=RETURN TO MAIN MENU

SELECT A NUMBER:

See: Description

* Setup System Information features are:

• Change Password

• Set Date & Time/Automatic Daylight Saving Time

• Setup Site ID

• Backup and Upload Configuration File (Service Terminal Interface only)

•Factory Defaults

• Firmware Update (Service Terminal Interface only)

Note that two of these system features—Backup and Upload Configuration File and Firmware Update—are unique to the Service Terminal Interface.

Liebert® AC4

Tips on Using the Service Terminal Interface

Use the following tips when making changes in the Service Terminal Interface:

• Data that can be entered is shown in parentheses ( ) in prompt line.

• The current setting is shown in brackets [ ] in the line below the prompt

• To accept the current setting, press the Enter key.

• To change the current setting, enter the value and then press Enter.

• Pressing Escape will exit the current setup function or take you to the previous menu screen.

™

A.6.1 Setup Inputs

For details on this feature, see 7.3 - Setup System - Setup Inputs.

Setup Inputs

SETUP INPUTS

Setup input of device

Select input to edit

Setup Menu

INPUT DEFINITION

1=DEVICE_1 NO-EV-NL-00:01 2=DEVICE_2 NO-AL-L -00:01 3=DEVICE_3 NC-EV-NL-00:01 4=DEVICE_4 NO-AL-L -00:01 5=RETURN TO SETUP MENU 6=RETURN TO MAIN MENU

SELECT A NUMBER:1

>CHANGE LABEL(8 CHARACTERS MAX). >[DEVICE_1] >[ >COMMAND SUCCESSFUL

>IS INPUT NORMALLY OPENED(NO) OR NORMALLY CLOSED(NC)? >[NO] >[ >COMMAND SUCCESSFUL

>IS INPUT AN ALARM(AL) OR EVENT(EV)? >[AL] >[ >COMMAND SUCCESSFUL

**************************** NO=NORMALLY OPENED NC=NORMALLY CLOSED

EV=EVENT AL=ALARMABLE

NL=NOT LATCHED L =LATCHED

MIN:SEC=DELAY TIME BEFORE

INPUT WILL TRIGGER

NOTE:EVENT CANNOT BE LATCHED ****************************

>IS ALARM LATCHED-YES(Y) OR NO(N)? >[N] >[ >COMMAND SUCCESSFUL

>DELAY TIME BEFORE TRIGGER (MM:SS)? >[00:01] >[ >COMMAND SUCCESSFUL

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A.6.2 Setup Common Alarm

For details on this feature, see 7.4 - Setup System - Setup Common Alarm.

Setup Common Alarm

SETUP COMMON ALARM

Select if the common alarm relay contact is to reset with silence alarm CURRENT

1=SETUP COMMON ALARM 2=RETURN TO SETUP MENU 3=RETURN TO MAIN MENU

SELECT A NUMBER:1

>RESET COMMON ALARM WITH SILENCE-YES(Y) OR NO(N)? >[N] >[ >COMMAND SUCCESSFUL

Setup Menu

SETTING

A.6.3 Setup Zones

For details on this feature, see 7.5 - Setup System - Setup Zones.

Setup Zones

SETUP ZONES

Select zones and number

of devices in the zone

ZONE # DEVICES

1=ZONE 1 2 2=ZONE 2 2 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

># DEVICES IN ZONE 1 >[2] >[ >COMMAND SUCCESSFUL

Liebert® AC4

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A.6.4 Setup Outputs

For details on this feature, see 7.6 - Setup System - Setup Outputs.

Setup Outputs

SETUP OUTPUTS

Setup output of device

Select output to edit

OUTPUT DEFINITION *******************************************

1=DEVICE_1 NO-OP-E NC=NORMALLY CLOSED 2=DEVICE_2 NO-ST-E 3=DEVICE_3 NO-NU-D OP=OPERATING/ON 4=DEVICE_4 NO-NU-D ST=STANDBY MODE 5=RETURN TO SETUP MENU NU=NOT USED 6=RETURN TO MAIN MENU

SELECT A NUMBER:1

>SET TO NORMALLY OPENED(NO) OR NORMALLY CLOSED(NC) >[NO] >[ >COMMAND SUCCESSFUL

Setup Menu

NO=NORMALLY OPENED

D=DISABLE DEVICE ON AN ALARM CONDITION E=LEAVE DEVICE OPERATING ON ALARM CONDITION *******************************************

>DEVICE_1 TO OPERATING/ON(OP), STANDBY MODE(ST), NOT USED(NU) >[OP] >[ >COMMAND SUCCESSFUL

>DEVICE_1 TO ENABLE(E) OR DISABLE(D) DEVICE ON ALARM >[E] >[ >COMMAND SUCCESSFUL

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A.6.5 Setup System Info

This section presents Service Terminal Interface screens for choices 1 through 9 in the Setup System Information menu shown below. For details on this topic, see 7.7 - Setup System - Setup System Info.

Setup System Info

SETUP SYSTEM INFORMATION

1=CHANGE PASSWORD 2=SET DATE & TIME 3=SETUP SITE ID 4=BACKUP & UPLOAD CONFIGURATION FILE 5=RESTORE PANEL TO FACTORY DEFAULTS 6=PERFORM FIRMWARE UPDATE 7=RETURN TO SETUP MENU 8=RETURN TO MAIN MENU

SELECT A NUMBER:

Setup Menu

Change Password

For details on this feature, see 7.7.1 - Change Password.

Change Password

CHANGE PASSWORD

1=CHANGE PASSWORD 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

>ENTER ORIGINAL PASSWORD(MUST BE 4 CHARACTERS). >

>ENTER NEW PASSWORD(MUST BE 4 CHARACTERS). >

>ENTER NEW PASSWORD AGAIN FOR CONFIRMATION. >

>PASSWORD CHANGE SUCCESSFUL

Liebert® AC4

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Setup Menu

Set Date & Time/Automatic Daylight Saving Time

For details on this feature, see 7.7.2 - Set Date & Time/Automatic Daylight Saving Time.

Set Date & Time

SET DATE & TIME

CURRENT DATE & TIME DST

1=SET DATE & TIME 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

>SET DATE & TIME(DD-MON-YY HR:MM:SS) >[28-AUG-02 14:45:10] >[ >COMMAND SUCCESSFUL

>ENABLE DAYLIGHT SAVINGS TIME-YES(Y) OR NO(N)? >[Y] >[ >COMMAND SUCCESSFUL

28-AUG-04 14:45:10 Y

Setup Site ID

For details on this feature, see 7.7.3 - Setup Site ID.

Setup Site ID

SETUP SITE ID

Define name to reference panel

CURRENT SITE ID

1=SETUP SITE ID 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

>ENTER SITE ID NAME(40 CHARACTERS MAX). >[] >[ >COMMAND SUCCESSFUL

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Setup Menu

Backup and Upload Configuration File (Service Terminal Interface only)

For details on this feature, see 7.7.4 - Backup and Upload Configuration File (Service Terminal Interface only).

Backup & Upload Configuration File - Backup

BACKUP AND UPLOAD CONFIGURATION FILE

Backup from panel saves panel configurations Upload to panel restores panel configurations

Select to backup or upload file

1=BACKUP CONFIGURATION FILE 2=UPLOAD CONFIGURATION FILE 3=RETURN TO SETUP SYSTEM INFO MENU 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:1

>INITIATE A BACKUP OF CONFIGURATION FILE-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM BACKUP: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT RECEIVE FILE

- ENTER FOLDER WHERE FILE IS TO BE RECEIVED

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT RECEIVE BUTTON AND ENTER FILE NAME,,E.G., AC4_CONF.SAV

>BACKUP SUCCESSFUL

Liebert® AC4

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Backup & Upload Configuration File - Upload

BACKUP AND UPLOAD CONFIGURATION FILE

Backup from panel saves panel configurations Upload to panel restores panel configurations

Select to backup or upload file

1=BACKUP CONFIGURATION FILE 2=UPLOAD CONFIGURATION FILE 3=RETURN TO SETUP SYSTEM INFO MENU 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:2

>INITIATE AN UPLOAD OF CONFIGURATION FILE-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM UPLOAD: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT SEND FILE

- ENTER FILE NAME-CONFIGURATION FILE LOCATION & NAME,E.G., AC4_CONF.SAV

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT SEND BUTTON

Setup Menu

>UPLOAD SUCCESSFUL

Factory Defaults

For details on this feature, see 7.7.5 - Factory Defaults.

Factory Defaults

RESTORE FACTORY DEFAULTS

This command restores all panel information to factory settings

1=RESTORE FACTORY DEFAULTS 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

>RESTORE THE PANEL TO FACTORY SETTINGS-YES(Y) OR NO(N)? >[N] [ >COMMAND SUCCESSFUL

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Setup Menu

Firmware Update (Service Terminal Interface only)

For details on this feature, see 7.7.6 - Perform Firmware Update (Service Terminal Interface only).

Firmware Update

PERFORM FIRMWARE UPDATE

This command will update the existing firmware

1=PERFORM FIRMWARE UPDATE 2=RETURN TO SETUP SYSTEM INFO MENU 3=RETURN TO SETUP MENU 4=RETURN TO MAIN MENU

SELECT A NUMBER:1

>PERFORM FIRMWARE UPDATE-YES(Y) OR NO(N)? >[N] >[

INSTRUCTIONS TO PERFORM FIRMWARE UPDATE: ASSUMES USING MICROSOFT WINDOWS HYPERTERMINAL APPLICATION

- SELECT TRANSFER FROM THE TOOLBAR

- SELECT SEND FILE

- ENTER FILE NAME-FIRMWARE FILE LOCATION & NAME,E.G., PROG####.S19

- SELECT XMODEM FROM THE PROTOCOL BOX

- SELECT SEND BUTTON

>WAITING TO SEND PROGRAM FILE >DONE

>CHECKSUM IS....

>PROGRAM VERSION....

>WAITING TO SEND FLASH FILE >DONE

>FIRMWARE UPDATE SUCCESSFUL

Liebert® AC4

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A.6.6 Setup Operation

For details on this feature, see 7.8 - Setup Operation.

Auto Sequencing

For details on this feature, see 7.8.1 - Turn Automatic Sequencing On or Off.

Setup Operation - Auto Sequencing

SETUP OPERATION

Select operation to edit

OPERATION STATE

1=AUTO SEQUENCING OFF 2=STANDBY TESTING OFF 3=FAILED STANDBY N 4=HOLD DELAY 10:00 5=RESTART DELAY 00:06 6=RETURN TO SETUP MENU 7=RETURN TO MAIN MENU

SELECT A NUMBER:1

>AUTO SEQUENCING- N FOR ON, F FOR OFF >[N] >[N] >COMMAND SUCCESSFUL

Setup Menu

>EVERY ## DAYS (.5 FOR 12 HOUR) >[03] DAYS >[ >COMMAND SUCCESSFUL

>AT >[00:00] >[ >COMMAND SUCCESSFUL

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Standby Testing

For details on this feature, see 7.8.2 - Turn Standby Testing On or Off.

Setup Operation - Standby Testing

SETUP OPERATION

Select operation to edit

OPERATION STATE

1=AUTO SEQUENCING OFF 2=STANDBY TESTING OFF 3=FAILED STANDBY N 4=HOLD DELAY 10:00 5=RESTART DELAY 00:06 6=RETURN TO SETUP MENU 7=RETURN TO MAIN MENU

SELECT A NUMBER:2

>STANDBY TESTING- N FOR ON, F FOR OFF >[N] >[N] >COMMAND SUCCESSFUL

Setup Menu

>EVERY ## DAYS >[03] DAYS >[ >COMMAND SUCCESSFUL

>AT >[00:00] >[ >COMMAND SUCCESSFUL

>FOR >[10] MIN >[ >COMMAND SUCCESSFUL

Liebert® AC4

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Failed Standby

For details on this feature, see 7.8.3 - Specify Failed Standby Response.

Setup Operation - Failed Standby

SETUP OPERATION

Select operation to edit

OPERATION STATE

1=AUTO SEQUENCING OFF 2=STANDBY TESTING OFF 3=FAILED STANDBY N 4=HOLD DELAY 10:00 5=RESTART DELAY 00:06 6=RETURN TO SETUP MENU 7=RETURN TO MAIN MENU

SELECT A NUMBER:3

>IF FAILED STANDBY,IN SAME FAILED ZONE, ENABLE A DISABLED UNIT-YES(Y) OR NO(N)? >[N] >[Y] >COMMAND SUCCESSFUL

Setup Menu

Hold Delay

For details on this feature, see 7.8.4 - Specify Hold Delay Time.

Setup Operation - Hold Delay

SETUP OPERATION

Select operation to edit

OPERATION STATE

1=AUTO SEQUENCING OFF 2=STANDBY TESTING OFF 3=FAILED STANDBY N 4=HOLD DELAY 10:00 5=RESTART DELAY 00:06 6=RETURN TO SETUP MENU 7=RETURN TO MAIN MENU

SELECT A NUMBER:4

>HOLD DELAY (MM:SS) >[10:00] >[ >COMMAND SUCCESSFUL

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Restart Delay

For details on this feature, see 7.8.5 - Specify Restart Time.

Setup Operation - Restart Delay

SETUP OPERATION

Select operation to edit

OPERATION STATE

1=AUTO SEQUENCING OFF 2=STANDBY TESTING OFF 3=FAILED STANDBY N 4=HOLD DELAY 10:00 5=RESTART DELAY 00:06 6=RETURN TO SETUP MENU 7=RETURN TO MAIN MENU

SELECT A NUMBER:5

>DELAY BEFORE STARTUP UNIT(MM:SS)? >[00:06] >[ >COMMAND SUCCESSFUL

Setup Menu

A.6.7 Override Output

For details on this feature, see 7.9 - Override Output.

Override Output

OVERRIDE OUTPUT

Manually override

an output point

Select output to override

OUTPUT CONTROL

1=DEVICE_1 AUTO ******************************** 2=DEVICE_2 AUTO AUTO = CONTROL BY PANEL 3=DEVICE_3 FORCE ON FORCE ON = FORCE ON BY OPERATOR 4=DEVICE_4 FORCE ON FORCE OFF= FORCE OFF BY OPERATOR 5=RETURN TO SETUP MENU ******************************** 6=RETURN TO MAIN MENU

SELECT A NUMBER:1

>OVERRIDE OUTPUT DEVICE_1-AUTO(2),FORCE ON(1),FORCE OFF(0). >[2] >[ >COMMAND SUCCESSFUL

Liebert® AC4

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A.6.8 Clear Alarms & Logs

For details on this topic, see 7.10 - Clear Alarms & Logs.

Clear Active Alarms

For details on this feature, see 7.10.1 - Clear Active Alarms.

Clear Alarms & Logs - Clear Active Alarms

CLEAR ALARMS&LOGS

Clear active alarms or log records

Select the log to clear

1=CLEAR ACTIVE ALARMS 2=CLEAR ALARM LOG 3=CLEAR EVENT LOG 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:1

>CLEAR ALL THE ACTIVE ALARMS-YES(Y) OR NO(N)? >[N] >[ >COMMAND SUCCESSFUL

Setup Menu

Clear the Alarm Log

For details on this feature, see 7.10.2 - Clear the Alarm Log.

Clear Alarms & Logs - Clear the Alarm Log

CLEAR ALARMS&LOGS

Clear active alarms or log records

Select the log to clear

1=CLEAR ACTIVE ALARMS 2=CLEAR ALARM LOG 3=CLEAR EVENT LOG 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:2

>CLEAR ALL RECORDS IN THE ALARM LOG-YES(Y) OR NO(N)? >[N] >[ >COMMAND SUCCESSFUL

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Clear the Event Log

For details on this feature, see 7.10.3 - Clear the Event Log.

Clear Alarms & Logs - Clear the Event Log

CLEAR ALARMS&LOGS

Clear active alarms or log records

Select the log to clear

1=CLEAR ACTIVE ALARMS 2=CLEAR ALARM LOG 3=CLEAR EVENT LOG 4=RETURN TO SETUP MENU 5=RETURN TO MAIN MENU

SELECT A NUMBER:3

>CLEAR ALL RECORDS IN THE EVENT LOG-YES(Y) OR NO(N)? >[N] >[ >COMMAND SUCCESSFUL

Setup Menu

Liebert® AC4

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NOTES

Specifications

Liebert® AC4

™

Specifications

51 Liebert® AC4

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Specifications

Liebert® AC4

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Ensuring The High Availability Of Mission-Critical Data And Applications.

Emerson Network Power, a business of Emerson (NYSE:EMR), is the global leader in enabling Business-Critical Continuity

™

from grid to chip for telecommunication networks, data centers, health care and industrial facilities. Emerson Network Power provides innovative solutions and expertise in areas including AC and DC power and precision cooling systems, embedded computing and power, integrated racks and enclosures, power switching and controls, infrastructure management, and connectivity. All solutions are supported globally by local Emerson Network Power service technicians. Liebert AC power, precision cooling and monitoring products and services from Emerson Network Power deliver Efficiency Without Compromise™ by helping customers optimize their data center infrastructure to reduce costs and deliver high availability.

While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. © 2012 Liebert Corporation All rights reserved throughout the world. Specifications subject to change without notice. ® Lieber t is a registered t rademark of Lieber t Corporation. All names referred to are trademarks or registered trademarks of their respective owners.

SL-31210_REV1_02-13

Technical Support / Service

Web Site

www.liebert.com

Monitoring

liebert.monitoring@emerson.com

800-222-5877

Outside North America: +00800 1155 4499

Single-Phase UPS & Server Cabinets

liebert.upstech@emerson.com

800-222-5877

Outside North America: +00800 1155 4499

Three-Phase UPS & Power Systems

800-543-2378

Outside North America: 614-841-6598

Environmental Systems

800-543-2778

Outside the United States: 614-888-0246

Locations

United States

1050 Dearborn Drive

P.O. Box 29186

Columbus, OH 43229

Europe

Via Leonardo Da Vinci 8

Zona Industriale Tognana

35028 Piove Di Sacco (PD) Italy

+39 049 9719 111

Fax: +39 049 5841 257

Asia

29/F, The Orient Square Building

F. Ortigas Jr. Road, Ortigas Center

Pasig City 1605

Philippines

+63 2 687 6615

Fax: +63 2 730 9572

Emerson Network Power. The global leader in enabling Business-Critical Continuity

AC Power

Connectivity DC Power

Embedded Computing Embedded Power Infrastructure Management & Monitoring

™

Outside Plant Power Switching & Controls Precision Cooling

EmersonNetworkPower.com

Racks & Integrated Cabinets Services Surge Protection

Emerson AC4 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.0 INTRODUCTION

1.1 Methods of Viewing and Configuring the Liebert AC4

1.2 Data Logs

1.3 Available Alarms

1.4 Outside Enclosure Overview

Figure 1 Liebert AC4 enclosure—external features

Figure 2 Liebert AC4 enclosure—internal features

1.5 Typical Configuration

Figure 3 Typical Configuration

1.6 Controller Board Overview

Table 1 Controller board components

1.7 LED Indicators

Table 2 LED indicators summary

1.8 Typical Sequence

Figure 4 Example of typical sequence

2.0 INSTALLATION

2.1 Installation Considerations

2.1.1 Unpacking and Preliminary Inspection

Packing Contents

Table 3 Packing manifest

2.2 Surface-Mounting the Liebert AC4

Required tools

2.2.1 Mounting the Panel

Figure 5 Mounting dimensions

2.3 Flush-Mounting the Liebert AC4

Required tools

2.3.1 Mounting the Panel

2.4 Connect Power to the Liebert AC4

Figure 6 Electrical connections to panel

3.0 WIRING AND CONNECTIONS

3.1 Wiring Specifications

Table 4 Wiring specifications

3.2 Connecting Digital Inputs and Outputs

Connecting Liebert Precision Cooling Units

3.2.1 Connecting Digital Inputs

3.2.2 Connecting Digital Outputs

3.2.3 Setting the Digital Output Jumpers

Table 5 Digital output jumper settings

3.3 Connecting Common Alarm Outputs

3.4 RS232 Connector

4.0 OVERVIEW OF MENUS

Table 6 Guide to Liebert AC4 functions

4.1 Opening Screen Overview

4.2 Main Menu Overview

Table 7 Primary Functions Overview

4.3 LCD Menu Overview

Figure 7 LCD Menu overview

5.0 VIEW STATUS OPTIONS

Figure 8 Menu overview - View Status menu

5.1 View Active Alarms

5.1.1 Active Alarms

Viewing Additional Screens

Clearing Active Alarms

5.2 View Alarm Log

5.2.1 Alarm Log

Table 8 Alarm log conditions

Viewing Additional Screens

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

5.3 View Event Log

5.3.1 Event Log

Table 9 Event log conditions

Viewing Additional Screens

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

5.4 View Input Status

5.4.1 Input Status

Table 10 Digital input states

Viewing Additional Input Data

5.5 View Output Status

5.5.1 Output Status

Table 11 Digital output states

Viewing Additional Output Data

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

6.1 Silence Alarm (Service Terminal Interface)

6.2 Back Up Log Files (Service Terminal Interface only)

7.0 SYSTEM AND CONTROL OPTIONS

Table 12 Valid characters for data entry