Emerson 115-50-60HZ, 15-90KVA, 115-600V, 115-208, 115-480 User Manual

AC Power
For Business-Critical Continuity™

Liebert® APM

User Manual–15-90kVA, 120, 208, 480 and 600V, 50/60Hz

™

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

GLOSSARY OF SYMBOLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Limited Life Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2.1 Battery Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.1 Initial Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.1 Storing for Delayed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 UPS Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.1 Positioning the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.2 Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Considerations in Moving the Liebert APM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.1 Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.2 Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.3 Cable Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.4 Special Considerations for Paral lel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5.5 Special Considerations for 1+N Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.6 45kVA and 90kVA UPS Frames—Auxiliary Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.6.1 Optional Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7 Optional Seismic Brackets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.8 Liebert FlexPower

2.9 Static Bypass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

™

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.0 ELECTRICAL CONNECTIONS—UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.1 Power Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1.1 Cable Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 Rectifier and Bypass Input Supply of the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.2 External Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.3 UPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.4 UPS Input Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.2.5 Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.6 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2.7 Accessory Fuses and Backfeed Breaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.2.8 Safety Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2.9 Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.2.10 Cabling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.3 Control Cables Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.3.1 Static Bypass Assembly Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

i

3.4 Dry Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.1 Input Dry Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.2 Output Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.4.3 Liebert BDC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.4.4 Battery Cabinet Interface Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.4.5 EPO Input—Optional. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.0 BATTERY INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.3 UPS Batteries—Liebert

4.4 External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.4.1 Matching Battery Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.4.2 Connecting the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.4.3 Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.4.4 Connecting the Battery Cabinet to the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.5 Battery Ground Fault Detection Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

4.6 Non-Standard Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.0 LIEBERT® BDC

™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

5.1 Normal (UPS) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.1.1 Bypass Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.2 Maintenance Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.3 Locating the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.4 Cable Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.4.1 Wiring Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.4.2 Power Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.4.3 Input/Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.5 Bolting Cabinets Together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

®

APM 45kVA Frame Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.0 INSTALLATION DRAWINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

7.0 OPTION INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

7.1 Liebert IntelliSlot Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

7.2 Liebert IntelliSlot Web Card—SNMP/HTTP Network Interface Card. . . . . . . . . . . . . . . . . 66

7.3 Web Card—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

7.4 Relay Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

7.5 Liebert

®

IntelliSlot™ MultiPort 4 Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.6 Alber BDSi Battery Monitoring System—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.7 Battery Temperature Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

8.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

8.1 Static Bypass Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

8.2 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.0 OPERATOR CONTROL AND DISPLAY PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

9.1 Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

9.2 Mimic Display Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

9.3 Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

ii

9.4 Alarm Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

9.5 LCD Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

9.6 Navigation Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

9.7 LCD Menus and Data Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

9.8 Language Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

9.9 Current Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

9.10 UPS History Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

9.11 Types of LCD Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

9.11.1 Opening Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

9.11.2 Default Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

9.11.3 UPS Help Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9.11.4 Screen Saver Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9.12 Pop-Up Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9.12.1 From Bypass to Inverter Mode With Power Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9.12.2 From Inverter to Bypass Mode With Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

9.12.3 System Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

9.12.4 Battery Capacity Test Confirmation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

9.12.5 Battery Self-Test Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

9.12.6 Battery Refresh Charge Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

9.12.7 Enter Control Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

10.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

10.1 Liebert® APM™ Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

10.2 UPS Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

10.2.1 Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10.2.2 Switching Between UPS Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.3 UPS Battery Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

10.4 Switching the UPS from Normal Operation to Maintenance Bypass. . . . . . . . . . . . . . . . . . 94

10.5 Switching the UPS from Maintenance Bypass to Normal Operation . . . . . . . . . . . . . . . . . . 95

10.6 De-Energize Liebert APM with Maintenance Bypass Cabinet.. . . . . . . . . . . . . . . . . . . . . . . 96

10.7 De-Energize Liebert

10.8 Switching the Liebert

10.8.1 Procedure to Take UPS1 Offline While Leaving UPS2 Online . . . . . . . . . . . . . . . . . . . . . . . . 97

10.8.2 Procedure to Put UPS1 Back Online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

10.8.3 Procedure to Take UPS2 Offline While Leaving UPS1 Online . . . . . . . . . . . . . . . . . . . . . . . . 98

10.8.4 Procedure to Put UPS2 Back Online. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

10.9 APM Procedure from Parallel Inverter Operation to Wrap-Around Bypass . . . . . . . . . . . 100

10.10 APM Procedure from Wrap-Around Bypass to Parallel Inverter Operation . . . . . . . . . . . 100

10.11 Emergency Shutdown With EPO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.12 Auto Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.13 Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions . . . . . . . . . 101

10.14 Battery Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.14.1 Battery Undervoltage Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.14.2 Battery End-of-Discharge (EOD) Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.15 Replacing Dust Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

®

APM™ Without Maintenance Bypass Cabinet. . . . . . . . . . . . . . . . . . 97

®

APM™ from Parallel to Single UPS Operation . . . . . . . . . . . . . . . . 97

iii

11.0 SPECIFICATIONS AND TECHNICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

11.1 Conformity and Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

11.2 UPS Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

11.3 Batteries Approved for Use in Liebert

®

APM™ Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.4 UPS Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

12.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

12.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

12.2 Routine Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

12.2.1 Record Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

12.2.2 Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

12.2.3 Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

12.2.4 Battery Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

12.2.5 Torque Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

12.3 Detecting Trouble. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

12.4 Reporting a Problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

12.5 Corrective Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

12.6 Recommended Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

APPENDIX A-HAZARDOUS SUBSTANCES OR ELEMENTS ANNOUNCEMENT . . . . . . . . . . . . . . . A116

APPENDIX B-UPS STATUS MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A117

iv

FIGURES

Figure 1 Cabinet arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 2 Liebert FlexPower assembly indicators and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 3 Static bypass assembly connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 4 Single UPS block diagram—dual input single source configuration . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 5 Input busbars—Liebert APM 45kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 6 Input busbars—Liebert APM 90kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 7 Liebert BDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 8 Busbars—Liebert BDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 9 Busbars—External 600mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 10 Busbars—External 900mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 11 Accessory fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 12 Dual input backfeed breaker wiring when bypass distribution cabinet not used. . . . . . . . . . . . . 26

Figure 13 Ground and neutral busbar connections—45kVA frame busbars . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 14 Ground and neutral busbar connections—90kVA frame busbars . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 15 Static bypass assembly connections to display cabinet and options . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 16 Auxiliary terminal block detail (static switch assembly front panel) . . . . . . . . . . . . . . . . . . . . . . 32

Figure 17 Input dry contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 18 Output dry contacts and EPO wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 19 EPO wiring and signal names for J6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 20 Battery cabinet, 600mm wide—details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 21 Battery trays for 600mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 22 Battery cabinet with trays for 900mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 23 Battery cabinet connection to Liebert APM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 24 Wiring of battery ground fault detection set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 25 Single input UPS with external Liebert BDCwith optional internal transformer—typical

configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 26 Liebert BDC—access plate removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 27 BDC connection to Liebert
Figure 28 Bolting Liebert

®

APM™ to a Liebert BDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 29 UPS dimensions- front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 30 Lineup arrangement, Liebert APM with battery and Liebert BDCs. . . . . . . . . . . . . . . . . . . . . . . 50

Figure 31 UPS dimensions continued, center of gravity—side, top and bottom views . . . . . . . . . . . . . . . . . 51

Figure 32 Liebert APM with top fan kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 33 UPS main components—typical unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 34 UPS cable connections—45kVA and 90kVA frames. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 35 Battery cabinet connection to UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 36 Battery cabinet connection to UPS (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 37 Battery cabinet outline drawing, weights and center of gravity, 600mm cabinet . . . . . . . . . . . . 60

Figure 38 Battery cabinet outline drawing, weights and center of gravity 900mm cabinet . . . . . . . . . . . . . 61

Figure 39 Outline drawing, Liebert BDC for Liebert

Figure 40 Outline drawing, Liebert BDC for Liebert APM, 15-90kVA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 41 Liebert BDC connection to UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 42 Acceptable hardware configuration for torque application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 43 Seismic mounting bracket details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure 44 Liebert IntelliSlot Web card display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 45 Liebert IntelliSlot MultiPort 4 card pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 46 Alber BDSi controller and input connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 47 Multi-temperature sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Figure 48 Single module block diagram—Single input configuration with three-breaker Liebert BDC . . . 72

®

APM™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

®

APM™, 15-45kVA . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

v

Figure 49 Single module block diagram—Dual input configuration with three-breaker Liebert BDC . . . . 73

Figure 50 Block diagram—Single input configuration with four-breaker internal bypass. . . . . . . . . . . . . . 74

Figure 51 Overview of control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Figure 52 Mimic display indicators location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 53 Control button layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 54 Alarm buzzer location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 55 Sections of the LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 56 Menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 57 Language selection screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Figure 58 Date and time screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 59 History log records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 60 Opening display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 61 Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 62 Screen saver window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Figure 63 Battery start button location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Figure 64 Typical configuration for single UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Figure 65 Liebert APM six-breaker buyout paralleling configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 66 Dust filter replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 67 Battery, circuit breaker and UPS wiring with external batteries with four connecting

wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Figure 68 Battery, circuit breaker and UPS wiring with external batteries with three connecting

wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

vi

TABLES

Table 1 Component service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 2 Battery voltage, nominal and float . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3 Battery retorque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 4 LED indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 5 Description of dry contact input port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 6 Output dry contact relays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 7 Liebert BDC interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 8 Battery cabinet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 9 EPO input contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 10 Control wiring for Liebert

Table 11 Control wiring for Liebert APM UPS to Liebert BDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 12 Center of gravity and weights for Liebert
Table 13 Center of gravity and weights for Liebert

Table 14 Center of gravity and weights for Liebert APM 45 kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table 15 Center of gravity and weights for Liebert APM 45 kVA frame with top fan option . . . . . . . . . . . 55

Table 16 Interconnect wiring for Liebert

Table 17 Interconnect wiring for Liebert APM to Liebert BDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Table 18 Spring washer torque application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Table 19 Liebert APM communication options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table 20 Relay Card pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Table 21 Relay card jumper configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Table 22 UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Table 23 Descriptions of UPS operator control and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Table 24 Mimic display status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Table 25 Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Table 26 Icons for navigation keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Table 27 UPS menus and data window items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Table 28 UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Table 29 Dip switch matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Table 30 Mimic indicators after initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Table 31 Mimic indicators for normal mode operation with battery breaker closed . . . . . . . . . . . . . . . . . . 92

Table 32 Mimic indicators for normal mode operation with battery breaker open . . . . . . . . . . . . . . . . . . . 92

Table 33 Environmental requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Table 34 UPS mechanical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Table 35 45kVA Liebert BDC mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Table 36 90kVA Liebert BDC mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Table 37 600mm battery cabinet mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Table 38 900mm battery cabinet mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Table 39 Batteries approved for use in External Battery Cabinet, 600mm . . . . . . . . . . . . . . . . . . . . . . . . 105

Table 40 Internal batteries approved for use with 45kVA frame Liebert APM . . . . . . . . . . . . . . . . . . . . . 105

Table 41 UPS currents and terminals—Input (for single-input unit, 208V operation) . . . . . . . . . . . . . . . 106

Table 42 UPS currents and terminals—Input (for dual-input unit only, 208V operation) . . . . . . . . . . . . 106

Table 43 UPS currents and terminals—Bypass input (for dual-input units, 208V operation) . . . . . . . . . 106

Table 44 UPS currents and terminals—Output 208V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Table 45 UPS currents and terminals—Battery (288V string) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Table 46 AC/AC efficiency, loss and air exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Table 47 Rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Table 48 Battery DC intermediate circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Table 49 Inverter output to critical load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

®

APM™ to battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

®

APM™ 90 kVA frame. . . . . . . . . . . . . . . . . . . . . . . . . 53

®

APM 90 kVA frame with top fan option. . . . . . . . . . 54

®

APM™ to battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

vii

Table 50 Bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Table 51 Battery voltage record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 52 Circuit breakers with compression lugs (for power wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 53 Terminal block with compression lugs (for control wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 54 Battery retorque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 55 Recommended test equipment and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Table 56 Hazardous substances or elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Table 57 UPS status messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

viii

IMPORTANT SAFETY INSTRUCTIONS

!

!

SAVE THESE INSTRUCTIONS

This manual contains important instructions that should be followed during installation of the
Liebert

Read this manual thoroughly, paying special attention to the sections that apply to your installation,
before working with the UPS. Retain this manual for use by installing personnel.

A properly trained and qualified electrical contractor should oversee the installation of the
equipment.

The Liebert APM cannot be put into operation until it is commissioned by the manufacturer or
authorized engineer. Otherwise, human safety may be endangered and damage to the UPS will not be
covered by the warranty.

The Liebert APM is designed for commercial and industrial uses and cannot be used as life support
equipment.

®

APM™, Liebert Bypass Distribution Cabinet™ and batteries (where applicable).

WARNING

Risk of moving heavy equipment and electric shock. Can cause equipment damage, injury and
death.

Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel. The Liebert APM’s weight ranges from 1100 to 2750 lb. (500 to 1250kg).

Determine unit weight and locate center of gravity symbols before handling the UPS.
Test lift and balance the cabinet before transporting it. Never tilt equipment more
than 15 degrees from vertical.

Battery manufacturers supply details of the necessary precautions to be observed when
working on, or in the vicinity of, a large bank of battery cells. These precautions should be
followed at all times.

Follow all battery safety precautions when installing, charging or servicing batteries. In
addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns. When connected, the nominal battery voltage is 288VDC
and is potentially lethal.

In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.

Extreme caution is required when performing maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages.
Check for voltage with both AC and DC voltmeters prior to making contact.

WARNING

Risk of moving electric shock. Can cause equipment damage, injury and death.
As with other types of high power equipment, dangerous voltages are present within the UPS

and battery enclosure even after input power has been disconnected. The risk of contact with
these voltages is minimized as the live component parts are housed behind a metal panel.
Further internal safety screens make the equipment protected to IP20 standards. Never
remove panels or covers or open doors that will expose internal components to contact.

Read and follow all warnings, cautions and safety and operating instructions to avoid serious
injury or death from electric shock. No risk exists to any personnel when operating the
equipment in the normal manner, following the recommended operating procedures.

All equipment maintenance and servicing procedures involve internal access and should be
carried out only by trained personnel.

1

Ground Leakage Currents

!

!

CAUTION

Risk of electric shock from high leakage current. Can cause injury, property damage and
death.

EARTH CONNECTION IS ESSENTIAL BEFORE CONNECTING THE INPUT SUPPLY.
Earth leakage current exceeds 3.5 mA and is less than 1000 mA.
Transient and steady-state earth leakage currents, which may occur when starting the

equipment, should be taken into account when selecting instantaneous RCCB or RCD devices.
Residual Current Circuit Breakers (RCCBs) must be selected sensitive to DC unidirectional

pulses (Class A) and insensitive to transient current pulses.
Note also that the earth leakage currents of the load will be carried by this RCCB or RCD.
This equipment must be earthed in accordance with the local electrical code of practice.

WARNING

Risk of electric shock. Can cause injury, property damage and death.
Under typical operation and with all UPS doors closed, only normal safety precautions are

necessary. The area around the UPS system should be kept free of puddles of water, excess
moisture and debris.

Special safety precautions are required for procedures involving handling, installation and
maintenance of the UPS system and the internal batteries (internal batteries accommodated
by 45kVA frame only). Observe all safety precautions in this manual before handling or
installing the UPS system as well as during all maintenance procedures. Observe all battery
safety precautions before working on or near the battery.

This equipment contains several circuits that are energized with high voltage. Only
test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with AC and DC voltmeters to ensure safety before making
contact or using tools. Even when the power is turned Off, dangerously high electric charges
may exist within the UPS.

All power and control wiring should be installed by a qualified electrician. All power
and control wiring must comply with the NEC and applicable local codes.

ONLY qualified service personnel should perform maintenance on the UPS system.
When performing maintenance with any part of the equipment under power, service
personnel and test equipment should be standing on rubber mats. The service personnel
should wear insulating shoes for isolation from direct contact with the floor (earth ground).

Never work alone, even if all power is removed from the equipment. A second person should
be standing by to assist and summon help in case an accident should occur.

NOTICE

Risk of improper ground connection. Can cause equipment damage.
Ground connection is essential before connecting the input supply. This equipment must be

grounded in accordance with local electrical codes. Maximum load must not exceed that
shown on the UPS rating label.

NOTICE

Risk of improper improper electromagnetic shielding. Can cause radio communication
interference.

This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J
of the FCC rules. These limits provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates radio frequency energy and,
if not installed and used in accordance with this instruction manual, may cause harmful
interference to radio communications. This unit is not designed for use in a residential area.
Operation of this unit in a residential area may cause harmful interference that the user is
solely responsible for correcting.

2

Battery Cabinet Precautions

!

!

The following warning applies to all battery cabinets supplied with UPS systems. Additional
warnings and cautions applicable to battery cabinets may be found in 4.0 - Battery Installation.

WARNING

Risk of improper handling. Can cause injury, property damage and death.
Internal battery strapping must be verified by manufacturer prior to moving a battery cabinet

(after initial installation).

• Battery cabinets contain non-spillable batteries.

• Keep units upright.

• Do not stack.

• Do not tilt.
Failure to heed this warning could result in smoke, fire or electric hazard.

Call 1-800-LIEBERT before moving battery cabinets (after initial installation).

Battery Hazards

WARNING

Risk of electric shock. Can cause injury, property damage and death.
Special care should be taken when working with the batteries associated with this equipment.

Batteries are always live. Battery terminal voltage will exceed 300VDC and is potentially
lethal.

In addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns.

Batteries should be installed, serviced and replaced only by properly trained and qualified
service personnel trained in safe battery handling methods and who have the correct PPE
(Personal Protection Equipment) and tools.

The following precautions should be observed when working with the batteries:

• Eye protection should be worn to prevent injury from electrical arcs.

• Remove rings, watches and all other metal objects.

• Use only tools with insulated handles.

• Wear rubber gloves and boots.

• When replacing batteries, replace them with the same type and number of batteries or bat­tery packs.

• Do not dispose of batteries in a fire. The batteries may explode.

• Do not open or mutilate batteries. Releas ed electr olyte i s harmful to the ski n and eyes. It is
toxic.

• Never lay metal objects of any type on top of the batteries.

• Disconnect the charging source before connecting or disconnecting battery terminals.

• Determine whether the battery is grounded. If the battery is grounded, remove source of
the ground. Contact with any part of a grounded battery can result in electrical shock. The
likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance.

If a battery leaks electrolyte, or is otherwise physically damaged, it must be replaced, stored in a
container resistant to sulfuric acid and disposed of in accordance with local regulations.

If electrolyte comes into contact with skin, the affected area should be washed immediately with large
amounts of water.

3

GLOSSARY OF SYMBOLS

!

PbH2SO4

-

+

R

Risk of electrical shock

Indicates caution followed by important instructions

AC input

AC output

i

Requests the user to consult the manual

Indicates the unit contains a valve-regulated lead acid battery

Recycle

DC voltage

AC voltage

Equipment grounding conductor

Bonded to ground

4

1.0 INTRODUCTION

The Liebert® APM™ UPS is a transformer-free, hardware-scalable, online uninterruptible power
system with 208/120V input and 208/120V output capability. The Liebert APM can operate with
either a 50 or 60Hz input and provide a matching output. The rack mounted 15kVA/kW modules
allow scaling the UPS’s capacity in 15kVA increments from 15kVA to a maximum of 90kVA in a
single frame.

Optional transformers are available to add 480V or 600V input capab il it y to the Liebert APM in bo th
the UPS, 90kVA/kW frame only, or the Bypass Distribution Cabinet (BDC) in either the 45kVA/kW or
the 90kVA/kW frame.

The Liebert APM UPS is a SmartAisle™ technology, appropriate for use with the SmartAisle design
approach.

The Liebert APM provides continuous, high-quality AC power to business-critical equipment, such as
telecommunications and data processing equipment. The Liebert APM supplies power free of the
disturbances and variations in voltage and frequ ency common to utility power, which is subject to
brownouts, blackouts, surges and sags.

The Liebert APM utilizes the latest in high-frequency, double-conversion pulse width modulation
(PWM) technology and fully digital controls to enhance its reliability and increase the ease of use.

Two frame sizes are available: 45kVA/kW and 90kVA/kW. The 45kVA/kW frame is designed to accept
internal batteries; the 90kVA/kW frame does not. The 90kVA frame is, however, designed to accept
Internal Transformers and a four-breaker bypass.

Introduction

1.1 Limited Life Components

The Liebert APM UPS has a design life well in excess of 10 years. Well-mai ntained units can continu e
to provide economic benefits for 20 years or more. Long-life components are used in the UPS wherever
practical and cost-effective. However, due to the currently available component material,
manufacturing technology limitations and the general function and use of the component, a few
components in your Liebert UPS will have a shorter life cycle and require replacement in less than 10
years.

The following components utilized in your UPS system have a limited life cycle and are specifically
exempt from warranty. To prevent a wear-out failure of one of these components affecting your
critical load operations, Liebert recommends these components be periodically inspected and replaced
before the expected expiration of their life cycle. The expected life of each component listed below is
simply an estimate and is not a guarantee. Individual users may have site-specific requirements,
maintenance and other environmental conditions that affect the length of the component's useful life
cycle.

Table 1 Component service life

Component Expected Life Replace in:

Air filters 1 to 3 years Check four times per year
Valve-regulated, lead-acid (VRLA) 10 years 6 to 8 years

In most cases, replacement components must exactly match the original component specifications.
These replacement components are not readily available from third-party component distributors.
For assistance with your specific component specifications, replacement component selection and
sourcing, call 1-800-LIEBERT. For customers using Emerson Network Power Liebert Services’
preventive maintenance services, periodic inspection of these components is part of this service, as
well as recommending component replacement intervals to customers to avoid unanticipated
interruptions in critical load operations.

5

1.2 Battery Maintenance

!

!

!

WARNING

Risk of electrical shock and high short circuit current. Can cause equipment damage, personal
injury and death.

These maintenance procedures will expose hazardous live parts. Refer servicing to properly
trained and qualified personnel working in accordance with applicable regulations as well as
with manufacturers’ specifications.

1.2.1 Battery Safety Precautions

Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and
the required precautions. Keep unauthorized personnel away from batteries.

When replacing batteries, use the same number and type of batteries.

WARNING

Risk of electric shock, explosive reaction, hazardous chemicals and fire. Can cause equipment
damage, personal injury and death.

Lead-acid batteries contain hazardous materials. Batteries must be handled, transported and
recycled or discarded in accordance with federal, state and local regulations. Because lead is a
toxic substance, lead-acid batteries must be recycled rather than discarded.

Do not dispose of battery or batteries in a fire. The battery may explode.
Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin

and eyes. It is toxic.

Introduction

WARNING

Risk of electrical shock and high short circuit current. Can cause equipment damage, personal
injury and death.

The following precautions must be observed when working on batteries:

• Remove watches, rings and other metal objects.

• Use tools with insulated handles.

• Wear rubber gloves and boots.

• Do not lay tools or metal parts on top of batteries.

• Disconnect charging source prior to connecting or disconnecting battery terminals.

• Determine whether the battery is grounded. If it is grounded, remove source of ground.
Contact with any part of a grounded battery can result in electrical shock . The likelihood of
such shock will be reduced if such grounds are removed during installation and
maintenance.

Lead-acid batteries can present a risk of fire because they generate hydrogen gas. In addition, the
electrical connections must be protected against accidental short circuits which can cause sparks. The
following procedures should be followed:

• DO NOT SMOKE when near batteries.

• DO NOT cause flame or spark in battery area.

• Discharge static electricity from body before touching batteries by first touching a grounded metal
surface.

• After replacing battery jars in a battery cabinet, replace the retaining straps that hold the jars in
place on the shelves. This will limit accidental movement of the jars and connectors should the
cabinet ever need to be repositioned or relocated.

Regular maintenance of the battery module is an absolute necessity. Periodic inspections of battery
and terminal voltages, specific gravity and connection resistance should be made. Strictly follow the
procedures outlined in the battery manufacturer’s manual, available on the manufacturer’s Web site.

Valve-regulated lead-acid (sealed-cell) batteries do require periodic maintenance. Although
maintenance of electrolyte levels is not required, visual inspections and checks of battery voltage and
connection resistance should be made.

6

Introduction

!

NOTICE

Risk of equipment damage. Batteries should be cleaned with a dry cloth or a cloth lightly
moistened with water. Do not use cleaners on the batteries. Solvents can make the battery
cases brittle.

Because individual battery characteristics are not identical and may change over time, the UPS
module is equipped with circuitry to equalize battery cell voltages. This circuit increases charging
voltage to maintain flooded type battery cells at full capacity.

WARNING

Risk of electric shock, explosive reaction, hazardous chemicals and fire. Can cause equipment
damage, personal injury and death.

Do not use equalize charging with valve-regulated, lead-acid batt eries, such as those in
Liebert Battery Cabinets. Refer to the battery manufacturer’s manual, available on the
manufacturer’s Web site, for specific information about equalize charging.

Matching Battery Cabinets—Optional

Although the individual battery cells are sealed (valve-regulated) and require only minimal
maintenance, the Battery Cabinets should be given a periodic inspection and electrical check. Checks
should be performed at least annually to ensure years of trouble-free service.

Voltage Records: With the Battery Cabinet DC circuit breaker closed and the connected UPS
operating, measure and record battery float voltage. With the DC circuit breaker open, measure and
record the nominal (open circuit) voltage. Both these measurements should be made across the final
positive and negative terminal lugs. Compare these values with those shown below. The recorded
nominal voltage should be no less than the value shown; while the recorded float voltage should be
within the range shown. If a discrepancy is found, contact Liebert

Table 2 Battery voltage, nominal and float

Battery Voltage, VDC

Number of Cells

144 324 316 - 331

Nominal Float

®

Services.

Power Connections: Check for corrosion and connection integrity. Inspect wiring for discolored or
cracked insulation. Clean and/or retighten as required. Refer to torque specifications in Table 3.

Battery Cell Terminals: Check for discoloration, corrosion and connection integrity. Clean and
tighten if necessary. Note that when installing a new battery, the initial torque value is 5 lb.-in. more
than the retorque value. Table 3 shows battery retorque values.

Table 3 Battery retorque values

Battery Mfr. Battery Model # Retorque Value

HX205-FR 65 in-lb
HX300-FR 65 in-lb
HX330-FR 65 in-lb

Enersys

If the system uses a different model battery, contact Liebert
To access battery cell terminals, disconnect the inter-tier cable and two shelf retaining screws. Once

disconnected, insulate (with protective boot or electrical tape) the cables to prevent accidental shorts.
The battery shelf can now be pulled out. Tighten each terminal connection to the retorque value.
When replacing a battery, the terminal connections must be cleaned and tightened. Disconnect and
insulate the cables connected to the battery. Secure each battery shelf with retaining screws when
maintenance is complete.

HX400-FR 65 in-lb
HX500-FR 65 in-lb
HX540-FR 65 in-lb
16HX800F 100 in-lb
16HX925F 100 in-lb

®

Services for the required torque value.

7

Introduction

Other DC Sources

If the UPS system uses a DC source other than a factory-supplied Matching Battery Cabinet, perform
maintenance on the DC source as recommended in the DC source manufacturer’s maintenance
manual, available on the manufacturer’s Web site.

8

2.0 INSTALLATION

!

This section describes the Liebert® APM™’s environmental requirements and mechanical
considerations that must be taken into account when planning the positioning and cabling of the UPS
equipment.

Because each site is unique, this section presents a guide to general procedures and practices that
should be observed by the installing engineer, rather than step-by-step installation instructions.

WARNING

Risk of electric shock. Can cause injury, property damage and death.
Special care should be taken when working with the batteries associated with this equipment.

When connected together, the nominal battery voltage is 288VDC and is potentially lethal.

• Eye protection should be worn to prevent injury from accidental electrical arcs.

• Remove rings, watches and all metal objects.

• Only use tools with insulated handles.

• Wear rubber gloves.
If a battery leaks electrolyte or is otherwise physically damaged, it must be replaced, stored in

a container resistant to sulfuric acid and disposed of in accordance with local regulations.
If electrolyte comes into contact with skin, the affected area should be washed immediately

with large amounts of water.

Installation

NOTICE

Risk of improper installation. Can cause equipment damage.
Do not apply electrical power to the UPS equipment before the commissioning engineer

arrives at the installation site.
The UPS must be installed by a properly trained and qualified engineer in accordance with

the information contained in this chapter. All the equipment not referred to in this manual is
shipped with details of its own mechanical and electrical installation information.

NOTE

Three-phase, four-wire input power is required.

NOTE

Input power must be supplied to the Liebert APM from a properly grounded Wye or Delta
source. The Liebert APM is not for use with impedance grounded systems, corner-grounded
systems or high-leg Delta systems. For these applications, an isolation transformer must be
installed between the input power and the Liebert APM.

9

2.1 Initial Inspections

!

!

1. While the Liebert® APM™ and ancillary cabinets are stil l on the tr uck, inspect the equipment and
shipping container for any signs of damage or mishandling. Do not attempt to install the system if
damage is apparent. If any damage is noted, file a damage claim with the shipping agency
immediately and contact Liebert Services at 1-800-LIEBERT to inform them of the damage claim
and the condition of the equipment.

2. Compare the contents of the shipment with the bill of lading. Report any missing items to the
carrier and your local Emerson representative immediately.

3. Check the product label on the back of front door and confirm the contents match the UPS model,
capacity and main parameters that were ordered.

2.1.1 Storing for Delayed Installat ion

If the equipment will not be installed immediately, it must be stored indoors where the humidity is no
higher than 90% and the temperature is no higher than 104°F (40°C). The storage area must protect
the Liebert APM from excessive moisture (see 11.2 - UPS Environmental).

CAUTION

If the UPS must remain disconnected from power for more than six (6) months, the batteries
(if so equipped) must be recharged before use. To charge the batteries, the unit must be
connected to utility power and started up—the charger operates only while the Liebert APM
is operating.

Installation

CAUTION

When batteries are installed in the UPS or are cabinet-mounted adjacent to the UPS, the
battery—not the UPS—dictates the designed maximum ambient temperature.

2.2 Preliminary Checks

2.2.1 Identification

The equipment supplied has an identification tag on the back of the main door listing the type and
size of the UPS.

2.3 UPS Location

2.3.1 Positioning the UPS

Choose a location for the UPS that offers:

• Easy connection to inputs, outputs and auxiliary equipment

• Enough space to service the UPS

• Air circulation sufficient to expel heat produ ced by UP S

• Protection against moisture and excessive humidity

• Protection against dust and other particulate matter

• Compliance with fire prevention regulations and practices

• Operating environment temperature of 74-80°F (23-27°C) for maximum battery efficiency

10

2.3.2 Environmental Considerations

!

!

Before installing the Liebert® APM™, verify that the UPS room satisfies the environmental conditions
stipulated in 11.2 - UPS Environmental, paying particular attention to the ambient temperature
and air exchange system.

The UPS unit should be installed in a cool, dry, clean-air environment with adequate ventilation to
keep the ambient temperature within the specified operating range 32°F to 104°F (0°C to 40°C).

For optimal UPS and battery system performance and service life, maintain the operating
temperature within the range of 74-80°F, (23-27°C).

The Liebert APM is cooled by internal fans. Cooling air enters the unit through the front of the unit
and is exhausted out the back. To permit proper air flow and prevent overheating, do NOT block or
cover the ventilation openings or blow air down onto the unit. The UPS requires 24 in. (610mm)
ventilation clearance above the unit and 12" (305mm) behind the UPS.

See Table 46 for details on heat dissipation.

Battery Location

Temperature is a major factor in determining battery life and capacity. Battery manufacturers
recommend an operating temperature of 77°F (25°C). Ambient temperatures warmer than this reduce
battery life; temperatures below this reduces battery capacityv. In a typical installation, battery
temperature should be maintained between 74°F and 80°F (23-27°C). Batteries should be placed
where there are no main heat sources or air inlets to prevent portions of batteries from being either
much warmer or much cooler than other parts of the batteries.

Installation

2.4 Considerations in Moving the Liebert APM

Ensure that the UPS weight is within the designated surface weight loading (lb./ft2 or kg/cm2) of any
handling equipment. See Table 34 for weights of various units.

The Liebert APM may be rolled on its casters for short distances only. For longer distances, move the
UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.

The optional battery cabinets should be moved with a forklift or similar equipment.

WARNING

Risk of moving heavy unit. Can cause property damage, injury and death.
Ensure that any equipment that will be used to move the Liebert APM has sufficient lifting

capacity. The Liebert APM’s weight ranges from 1100 to 2750 lb. (500 to 1250kg). See
Table 34 for details.

The UPS presents a tipping hazard. Do not tilt the Liebert APM more than 15 degrees from
vertical.

The UPS is fitted with casters—Take care to prevent movement when unbolting the
equipment from its shipping pallet. Ensure adequate personnel and lifting equipment are
available when taking the Liebert APM off its shipping pallet.

WARNING

Risk of heavy unit tipping over while being moved. Can cause property damage, injury and
death.

The casters are strong enough for movement across even surfaces only. Casters may fail if
they are subjected to shock loading, such as being dropped or rolled over holes in the floor or
obstructions. Such failure may cause the unit to tip over, injuring personnel and damaging
the equipment.

Care must be taken when maneuvering units fitted with batteries. Keep such moves to a
minimum. For further information, see Battery Cabinet Precautions on page 3.

Final Positioning

When the equipment has been finally positioned, ensure that the adjustable stops are set so that the
UPS will remain stationary and stable (see 6.0 - Installation Drawings).

The Liebert APM and its auxiliary cabinets must be installed on a concrete or equivalent, non­resilient floor.

11

2.5 Mechanical Considerations

!

The Liebert® APM™ is constructed with a steel frame and removable panels. Top and side panels are
secured to the chassis by screws. The doors may be opened for access to power connections bars,
auxiliary terminals blocks and power switches.

The UPS comes with an Operator Control Panel that provides basic operational status and alarm
information. The cabinet houses both the power components and the internal batteries. Cooling is
provided by internal fans. The unit sits on four casters. Adjustable stops are provided to prevent the
UPS from moving once it has been moved to its final position.

WARNING

Risk of heavy units tipping over while being moved. Can cause property damage, injury and
death.

The Liebert BDC
Improper lifting may cause the cabinets to fall, causing personal injury or death and
equipment damage.

Emerson recommends lifting the units with one of the following methods:

• Installing four eyebolts in the factory-fabricated holes, one at each corner of the unit,
attaching cables or similar strapping to the eyebolts and lifting with a suitable mechanism.

• Placing suitable straps on the Liebert BDC
the unit to be lifted.

™

and battery cabinets must be properly prepared and secured for lifting.

Installation

™

or battery cabinet. The straps must go under

2.5.1 Clearances

There are no ventilation grilles on the sides of the UPS. The sides must be accessible during
installation. After installation, the unit must have a clearance of 12 in. (305mm) in the rear to permit
adequate circulation of air exhausted from the UPS. The Top Fan option eliminates the 12" (305mm)
rear clearance requirement, but it increases the Liebert APM’s height by 7.63" (194mm).

To enable routine tightening of power terminations within the UPS, make sure there is sufficient
clearance in front of the Liebert APM to permit free passage of personnel with the door fully opened.

Leave a minimum of 24 in. (610mm) between the top of the UPS and the ceiling to permit adequate
air circulation above the unit. Emerson recommends against using air conditioning or other systems
that blow air onto the top of the unit.

2.5.2 Floor Installation

If the Liebert APM, Liebert BDC or battery cabinet is to be placed on a raised floor, the UPS should be
mounted on a pedestal that will support the equipment point loading. Refer to the bottom view in
Figures 31, 37 or 40 to design this pedestal.

2.5.3 Cable Entry

Cables can enter the Liebert APM, Liebert BDC and battery cabinets from the top or bottom through
removable metal plates.

Some plates have factory-punched holes and others are designed to allow the personnel to punch
holes for fitting and securing the conduit. Once the conduit holes are punched, these plates should be
reattached to the UPS. The conduit size and wiring method must be in accordance with all local,
regional and national codes and regulations, including NEC ANSI/NFPA 70.

The UPS must be accessible from the right side to allow personnel to complete the cable connections
and make necessary adjustments. After installation is complete, the Liebert APM may be serviced
from the front.

NOTE

When installing the UPS, the customer must provide a disconnect with overcurrent protection
at the output of the UPS.

12

2.5.4 Special Considerations for Parallel Systems

1. Consider the grounding configuration of the UPS system before finalizing module placement. For
optimal ground performance, the Liebert
Cabling Guidelines.

2. For optimal load-sharing performance, the UPS bypass input cables and output cables should be
approximately the same length, plus or minus 20 percent.

3. Position modules in such a way as to minimize the length of power cables and control wiring
between UPS modules and the paralleling cabinet.

®

APM™ modules should be close together. See 3.2.5 -

2.5.5 Special Considerations for 1+N Parallel Systems

Consider the grounding configuration of the UPS system before finalizing module placement. See

3.2.5 - Cabling Guidelines.

Emerson recommends matching the impedance in the bypass path of paralleled systems as closely as
possible.

The impedance mismatch can be minimized by controlling the wiring length of each unit. The design
and the layout of the UPS system and associated panels and cabling should be examined closely to
ensure that cable lengths and impedances are closely matched. The Liebert 1+N UPS module is
supplied with a sharing reactor to minimize the impact of cable impedance mismatch. The cabling
impedance must be carefully controlled to ensure good bypass current sharing.

For Liebert APM
If the cabling impedances must be greater than 10%, contact your Emerson representative to
calculate whether the system will result in an overload condition when operating on bypass.

™

systems, the cabling impedances must be within 10% from maximum to minimum.

Installation

When bringing the 1+N system online for the first time or after removing one unit, Emerson
recommends checking the bypass current mismatch. To check the bypass current mismatch:

1. Place a load on the bypass of each UPS module.

2. View the output current of each unit.

The accuracy of the currents displayed on the UPS module is sufficient for this check. If the mismatch
is greater than 10%, the bypass impedances must be balanced or the load must be limited to less than
the maximum rating.

2.6 45kVA and 90kVA UPS Frames—Auxiliary Cabinets

The 45kVA frame consists of a single cabinet housing the UPS components and the internal battery
string. The 90kVA frame, also a single cabinet, does not accommodate internal batteries, but does
provide for an internal 4-breaker bypass, or an internal transformer. The internal transformers are
available with either 480V:208V or 600V:208V input primaries.

Optional battery cabinets are available for each Lieber t
Each battery cabinet houses a single string of batteries per cabinet that operate in parallel with the
Liebert APM’s internal batteries (45kVA frame only). The battery cabinets are designed to be bolted
to the left side of the UPS (see Figure 1). Refer to 4.4 - External Battery Cabinet Installation for
details.

Optional Liebert BDC

™

units are available. These cabinets house the components necessary to

provide an external wraparound maintenance bypass switch for servicing the UPS.
Liebert BDCs are designed to be bolted to the right side of the UPS (see Figure 1). Refer to 5.3 -

Locating the Cabinet for further details.

®

APM™ model to provide extended run time.

System Composition

A UPS system can comprise a number of equipment cabinets, depending on the system design
requirements—e.g., UPS cabinet, External Battery Cabi net and External Bypass Cabinet. In general,
all cabinets used will be the same height and are designed to be positioned side-by-side to form an
aesthetically appealing equipment suite.

13

2.6.1 Optional Cabinets

Liebert

APM

Bypass

Distribution

Cabinet

Bypass

Distribution

Cabinet

Liebert

APM

Battery

Cabinet

Battery
Cabinet

Liebert

APM

Battery

Cabinet

Liebert APM connected only to Liebert BDC

(BDC must be on right side of the Liebert APM)

Liebert APM connected to Liebert BDC and Battery Cabinets

(BDC must be on right side of the Liebert APM)

(Battery Cabinets must be on the left side of the Liebert APM)

ALL UNITS VIEWED FROM ABOVE

Liebert APM connected to Battery Cabinet (Battery Cabinets

must be on the left side of the Liebert APM)

Run LED

Battery Start
Button

Ready Switch

Fault LED

DIP Switches

If the Liebert APM installation includes a Liebert BDC, the UPS must be positioned to allow the
Liebert BDC to be bolted to right side of the Liebert APM (see Figure 1).

The Liebert BDC must be cabled and bolted to the Liebert APM before the UPS and bypass cabinet
are moved into their final position. Connect the input wiring to the Liebert BDC ONLY after the units
are connected and positioned.

Battery cabinets may be bolted only to the left side of the Liebert APM; see Figure 1.

Figure 1 Cabinet arrangement

Installation

2.7 Optional Seismic Brackets

Optional seismic mounting brackets to anchor the Liebert® APM™, Liebert BDC™ and battery cabinet
to the floor are available. Refer to Figure 43 for mounting details.

2.8 Liebert FlexPower™ Assembly

Figure 2 Liebert FlexPower assembly indicators and controls

The Battery start button allows starting of UPS on battery; refer to 10.3 - UPS Battery Start.
The Run LED is illuminated Green when the Liebert FlexPower assembly is operating normally.

14

The Fault LED will illuminate red when the Liebert FlexPower assembly has a problem.

J10

J7J5

J6J8J9

RS-232

Liebert IntelliSlot
Bays 1, 2, 3

RS-485

J4

J11

J12

Monitor

Table 4 LED indications

LED Status Indication
Run LED (Green)

Flashing Green The inverter is starting, but has no output yet.
Constant Green The inverter has started to supply power.
OFF The inverter has not started up.

Fault LED (Red)

Auxiliary power failure (15V or 24V), rectifier overtemperature, rectifier failure (including battery
SCR short circuit), battery converter failure, soft start failure, main circuit back feed, abnormal

Constant Red

Flashing Red

OFF No above failures or alarms.

input current, inverter failure, output short circuit, bypass SCR short circuit fault, inverter relay
short circuit fault, abnormal bus voltage under non-sleep mode, module not ready, module ID
out of range and duplicated module ID.

Charger failure, abnormal main circuit voltage, abnormal main circuit frequency, main circuit
undervoltage, main circuit reverse phase, battery unavailable, reverse battery, input zero-loss,
current sharing failure, module overload, inverter relay disconnection fault, bypass SCR
disconnection fault and input fuse blown.

2.9 Static Bypass Assembly

Figure 3 Static bypass assembly connections

Installation

The Static bypass assembly has three Liebert IntelliSlot interface card bays and connections for
ancillary cabinets (Liebert BDC and battery) and for options.

15

3.0 ELECTRICAL CONNECTIONS—UPS

!

The UPS requires both power and control cabling once it has been mechanically installed. All control
cables must run separate from power cables in metal conduits or metal ducts that are electrically
bonded to the metalwork of the cabinets to which they are connected.

WARNING

Risk of electric shock. Can cause property damage, injury and death.
Before connecting input power to the Liebert

location and operation of the overcurrent protection devices that connect the UPS
input/bypass supply to the power distribution panel.

De-energize and lockout or tagout all incoming high- and low-voltage power circuits before
installing cables or making any electrical connections.

3.1 Power Cabling

3.1.1 Cable Rating

The main factors affecting the choice and size of cable are voltage, current (also taking into account
overcurrent), room temperature and conditions of installation of the cable. Refer to ANSI/NFPA 70.

The power cables of the system must be sized with respect to the following description:

Electrical Connections—UPS

®

APM™, ensure that you are aware of the

• UPS input cables - The UPS input cables must be sized for the maximum input current, includ­ing the maximum battery recharge current, given in Table 41, with respect to the unit rating and
the input AC voltage.

• UPS bypass and output cables - The bypass and output cables must be sized for the nominal
output current, given in Table 41, with respect to the unit rating and the output AC voltage.

• Battery cables - Each UPS unit has its own internal batteries factory-wired. If connecting an
external battery cabinet, the battery cables must be sized for the battery discharge current at the
end-of-discharge voltage, as given in Table 41, with respect to the unit rating.

NOTE
Table 41 gives nominal currents for determining the size of UPS power cables. Other

important factors to consider include cable route length and coordination with protective
devices.

The power cables can be sized to suit the UPS unit rating according to Table 41.

Lug Size and Torque Requirements

Refer to Table 41 for lug size and torque requirements and to Table 18 and Figure 42.

3.2 External Protective Devices

For safety concerns, it is necessary to install external circuit breakers or other protective devices for
the input AC supply of the UPS system. This section provides generic practical information for
qualified installation engineers. The installation engineers should be knowledgeable about regulatory
wiring standards and the equipment to be installed.

To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent protection
in accordance with NEC ANSI/NFPA 70.

16

3.2.1 Rectifier and Bypass Input Supply of the UPS Overcurrents

Install suitable protective devices in the distribution unit of the incoming mains supply, considering
the power cable current-carrying capacity and overload capacity of the system. Generally, the
magnetic circuit breaker with IEC60947-2 tripping curve C (normal) at the 125% of the nominal
current listed in Table 41 is recommended.

Split bypass: In case a split bypass is used, separate protective devices should be installed for the
rectifier input and bypass input in the incoming mains distribution panel.

NOTE

The rectifier input and bypass input must use the same neutral line.
For an IT power network system, a 4-pole protective device must be installed on the external

input distribution and external output distribution of the UPS.

Earth Leakage, RCD Devices

Any residual current detector (RCD) installed upstream of the UPS input supply:

• Must be sensitive to DC unidirectional pulses (Class A)

• Must be insensitive to transient current pulses, and

• Must have an average sensitivity, adjustable between 0.3 and 1A.

To avoid false alarms, earth leakage moni toring devices when used in systems with split bypass input
or when used in paralleled UPS configurations, must be located upstream of the common neutral
sinking point. Alternatively, the device must monitor the combined four-wire rectifier and split
bypass input currents.

Electrical Connections—UPS

The residual earth current introduced by the RFI suppression filter inside the UPS is greater than

3.5mA and less than 300mA. Liebert recommends verifying the selectivity with all other differential
devices both upstream of the input distribution board and downstream (toward the load).

3.2.2 External Battery

The DC-compatible circuit breaker provides overcurrent protection for UPS system and battery,
which is provided by the external battery cabinet.

3.2.3 UPS Output

If an external distribution panel is used for load distribution, the selection of protective devices must
provide discrimination with those that are used at the input to the UPS (see Table 47).

17

3.2.4 UPS Input Configuration

NOTES

1. Install in accordance with national and local electrical codes.

2. Input and bypass must share the same single source.

3. A neutral is required from the systemAC input source. A full
capacity neutral conductor is recommended. Grounding
conductors are recommended.

4. Bypass and rectifier inputs and output cables must be run
in separate conduits.

5. Control wiring must be run in separate conduits.

6. Optional 54-pole, 225A for 45kVA frame only or optional 54-pole,
400A for 90kVA frame only.

7. Customer must supply shunt trip breaker with 120V coil.

BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection
by others

Field-Supplied Wiring

UAM01023
Rev. 3

Bypass Distribution Cabinet

* Bypass
AC Input

4-Wire + GND

* Rectifier

AC Input

4-Wire + GND

See Note 7

BIB

MBB

MIB

Static Bypass

UPS Cabinet
Battery

Optional

54-Pole

See Note 6

AC Output

208V

4-Wire + GND

By default, the Liebert® APM™ ships with internal links installed between the bypass i nput and main
(rectifier) input (single input configuration see Figure 48).

Figure 4 shows the Liebert APM in a split bypass (single source dual-input) configuration. In this
configuration, the static bypass and the maintenance bypass l ines are supplied by the same source
using separate feeds. Both feeds must be protected externally with properly sized protective devices.

To wire the Liebert APM as a single source dual-input UPS, remove the links and wire the bypass
feed to the bypass busbars, then wire the main feed to the main busbars (see Figure 6).

Figure 4 Single UPS block diagram—dual input single source configuration

Electrical Connections—UPS

18

3.2.5 Cabling Guidelines

The following are guidelines only and are superseded by local regulations and codes of practice where
applicable. Use wiring rated at 75°C or greater.

1. Take special care when determining the size of the neutral cable, as current circulating on the

neutral cable may be greater than nominal current in the case of non-linear loads. Refer to the
values in 11.4 - UPS Electrical Characteristics.

2. The ground conductor should be sized according to such factors as the fault rating, cable lengths

and type of protection. The ground cable connecting the UPS to the main ground system must
follow the most direct route possible. Control wiring and power wiring must be run in separate
conduit. Output and input cables must be run in separate conduit.

3. Consider using paralleled smaller cables for heavy currents—this can ease installation.

4. When sizing battery cables, a maximum voltage drop of 4VDC is permissible at the current

ratings in Table 43. For terminal connection sizing, see Tables 41 through 43.

5. In most installations, the load equipment is connected to a distribution network of individually

protected busbars fed by the UPS output, rather than connected directly to the UPS itself. When
this is the case, the UPS output cables can be rated to suit the individual distribution network
demands rather than being fully load-rated.

NOTE

If more load is added to the distribution panel, the unit’s cabling must be resized.

6. When laying power cables, do not form coils; this will help avoid increasing formatio n of

electromagnetic interference.

Electrical Connections—UPS

NOTE

Right-side access may be required when making power connections. Cable connections should

®

be made before a cabinet is attached to the right side of the Liebert

APM™ or before the UPS is

placed where another obstruction, such as a wall, is against the Liebert APM’s the right side.

19

3.2.6 Cable Connections

The rectifier input, bypass output and battery are easily accessible from the right side of the unit for
installation. All require lug type terminations. They are connected to busbars on the right side of the
Liebert
is removed.

®

APM™, as shown in Figures 5 and 6. These busbars are accessible when the right side panel

NOTICE

Risk of improper installation. Can cause equipment damage.
When wiring a single-input only system, connect only the power wiring to the input busbars.

Figure 5 Input busbars—Liebert APM 45kVA frame

Electrical Connections—UPS

20

Figure 6 Input busbars—Liebert APM 90kVA frame

Electrical Connections—UPS

21

Figure 7 Liebert BDC

Electrical Connections—UPS

22

Figure 8 Busbars—Liebert BDC

Electrical Connections—UPS

23

Figure 9 Busbars—External 600mm battery cabinet

Electrical Connections—UPS

24

Figure 10 Busbars—External 900mm battery cabinet

Electrical Connections—UPS

25

3.2.7 Accessory Fuses and Backfeed Breaker Wiring

BDSi Fuse
Block
(optional)

Backfeed
Breaker
Fuse Block

UAM04030
Rev. 1

Auxiliary contacts n o t n eeded
for backfeed breaker operation

Upstream Bypass Breaker

To UPS
Bypass Input

Upstream Rectifier Breaker

Backfeed Breaker
Fuse Block

J11 on UPS
Bypass Module

J10 on UPS
Bypass Module

To UPS
Rectifier Input

Two fuse blocks provide power for the backfeed breakers (standard) and the BDSi (optional). See
Figure 11 for fuse holder locations.

The backfeed breaker fuse block provides 120V nominal provided from the UPS output (L-N) and the
fuse is rated for 8 amps. Figure 12 shows the backfeed breaker wiring.

The BDSi fuse block provides 208V nominal from the UPS output (L-L) and the fuse is rated at 8A.
The BDSi power wiring is shown in Figures 23 and 46.

Figure 11 Accessory fuses

Electrical Connections—UPS

Figure 12 Dual input backfeed breaker wiring when bypass distribution cabinet not used

NOTE

Shunt trips are required in upstream breakers to allow backfeed protection to function
properly.

26

3.2.8 Safety Ground

!

The safety ground busbar is below the neutral input and output busbars as shown in Figure 13
below. The safety ground cable must be connected to the ground busbar and bonded to each cabinet in
the system. This ground busbar is then connected to the ground electrode conductor (GEC).

All cabinets and cable conduit should be grounded in accordance with local regulations.

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury anddeath.
Failure to follow proper grounding procedures can result in electric shock hazard to personnel

or the risk of fire, should a ground fault occur.

NOTE

Proper grounding significantly reduces problems caused by electromagnetic interference.

NOTE

The ground and neutral busbars are easily accessible when the right side panel is removed.
Cable connections should be made before a cabinet is attached to the right side of the Liebert

™

APM

or before the UPS is placed where another obstruction, such as a wall, is against the

Liebert APM’s the right side.

Electrical Connections—UPS

®

27

Figure 13 Ground and neutral busbar connections—45kVA frame busbars

Electrical Connections—UPS

28

Figure 14 Ground and neutral busbar connections—90kVA frame busbars

Electrical Connections—UPS

29

3.2.9 Protective Devices

!

For safety, it is necessary to install circuit breakers in the input AC supply external to the UPS
system. Given that every installation has its own characteristics, this section provides guidelines for
qualified installation engineers with knowledge of operating practices, regulatory standards and the
equipment to be installed.

UPS Rectifier and Bypass Input Supply

• Protection from excessive overcurrents and short circuits in power supply input
External overcurrent protection for the AC output circuit is to be provided. See 11.4 - UPS Elec-

trical Characteristics and Table 47 for overload capacity.
A breaker is used for internal battery circuit overcurrent protection. When an external battery

supply is used, overcurrent protection for the battery circuit is to be provided by the customer.

• Dual Input Single Source

When wiring the UPS with dual inputs but with a sing le input source, the Rectifier in put an d the
Bypass input must be protected separately. Size the breakers according to the input currents
shown in Table 41.

Fuses

The Liebert APM’s main input and bypass input busbars are equipped with fuses (six locations; see
Figure 33). The type is Bussman 170M4465, rated at 550A and 700V.

System Output

When using an external distribution panel for load distribution , the output neutr al and input neutral
must be separated at the input to the UPS.

Electrical Connections—UPS

3.2.10 Cabling Procedure

CAUTION

The operations described in this section must be performed by authorized electricians or
qualified technical personnel. If you have any difficulties, contact your local Emerson
representative or Liebert Services.

NOTE

Hydraulic pressure pliers, combinative tools and piston ring pliers should be used to connect
AC wiring.

Once the equipment has been positioned and secured for operation, and the battery and ground lugs
have been connected (see 3.2.6 - Cable Connections), connect the power cables as described below.
(Study the reference drawing in 6.0 - Installation Drawings.)

1. Verify that all incoming high and low voltage power circuits are de-energized and locked out or
tagged out before installing cables or making any electrical connections.

2. Remove the right side panel to gain easier access to the connections busbars.

3. Connect the safety ground and any easier bonding ground bus cables to the copper ground busbar
located in the middle of the Liebert
in the UPS system must be connected to the user’s ground connection.

NOTE

The grounding and neutral bonding arrangement must comply with the National Electrical
Code and all applicable local codes.

4. Identify and make power connections with incoming cables according to Steps 5 through 8.

Common Input Connections

5. For common bypass and main inputs, connect the AC input supply cables to the UPS input
terminals (A2-B2-C2-N1) and tighten the connections to 240lb-in. (27N-m) (M10 Bolt). Ensure
correct phase rotation.

®

APM™ below the Input and Bypass connections. All cabinets

NOTE

For common bypass and main inputs, the AC input cables must be connected to the bypass
terminal (A2-B2-C2-N1) but not the main input terminal (A2-B2-C2).

30

Electrical Connections—UPS

!

!

Split Bypass Connections

6. If a split bypass configuration is used, connect the AC input supply cables to the rectifier input
terminals (A1-B1-C1-N1) and the AC bypass supply cables to the bypass input terminals
(A2-B2-C2-N1) and tighten the connections to 240lb-in. (27N-m) (M10 Bolt). Ensure correct phase
rotation.

NOTE

For split bypass operation, ensure that the busbars between bypass and rectifier inputs are
removed. The neutral line of the bypass input must be connected to that of the rectifier input.

Output System Connections—Ensure Correct Phase Rotation

7. Connect the system output cables between the UPS output busbars (A-B-C-N terminals) and the
critical load and tighten the connections to 240lb-in. (27N-m) (M10 bolt).

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
If the load equipment will not be ready to accept power when the commissioning engineer

arrives, ensure that the system output cables are safely isolated.

Internal UPS Battery Connections

The UPS internal batteries will be connected at the factory, EXCEPT the connections between the
shelves and to the breaker.

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
The DC bus is live when this internal battery connection is made. This connection is to be

performed ONLY by Liebert Services at startup.

Observe the battery cable polarity. Be sure that the battery connection is made with the cor­rect polarity.

8. Refit all protective covers removed for cable installation.

3.3 Control Cables Details

3.3.1 Static Bypass Assembly Features

Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker, battery temperature sensor), communicate with a personal
computer or provide alarm signaling to external devices or for Remote Emergency Powe r Off (REPO).
Terminations for these functions are located at the front of the static bypass assembly. The main
features are:

• Input and output dry contacts signal (one pair of contacts of relay)

• Emergency Power Off control (EPO)

• Environmental parameter input interface

• User communication (for data setting and user background monitor)

• Liebert IntelliSlot

• Temperature detect interface

®

interface

31

Figure 15 Static bypass assembly connect ions to display cabinet and options

Monitor

J4
J8
J5
J12
J11
J10

J4

J9

Operator C ontr ol Panel

Batt ery Cabinet

Bypass Distri bution Cabinet

Temp Sensor (opt ional) and

BCB Contr ol Board

Ground Fault (opt ional)

Sensor & BCB Contr ol Board

On Generator (optional)

Static

Bypass

Assembly

Mains Backfeed Protection

Bypass Backfeed Protect ion

J1〜J3 port can't connect to phone !

Input/out put dr y cont act and EPO/ BCB/MBC interf ace

J1

J4 J7 J10

MFP_O

MFP_S

MFP_C

J11

INPUT_2

INPUT_1

OUT

GND

J8

+12V

BAT-IN

BAT-OUT

GND

J5

PARAJ2

BCB_IN

DRIVER

GND

ONLINE

Q2BP

Q3BP

EXT-OUT

GND

J9J6

J3 PARA

BFP_O

BFP_S

BFP_C

J12

INV_O

INV_S

INV_C

BAT_GND

ENV_DET

BAT_READY

+12V

+12V

EPO-NC

+12V

EPO-NO

LBS

Auxiliary
Terminal

Block

Electrical Connections—UPS

Figure 16 Auxiliary terminal block detail (static switch assembly front panel)

NOTE

Terminal block connectors are on the left side of the static bypass assembly.

32

3.4 Dry Contacts

+12V

J9

-

+12V

BAT_READY

ENV_DET

BAT_GND

BAT_OUT

+12V

BAT_IN

J4

GND

GND

EXT_OUT

Q2BP

Q3BP

J5 J8

GND

ONLINE

BCB_IN

DRIVER

12V

12V

12 V

NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of co nnectors J4, J5, J8 and J9.

The UPS provides input dry contacts and output dry contacts on the Auxiliary Terminal Block (ATB).

3.4.1 Input Dry Contacts

External input dry contacts are connected via the ATB. Dry contacts are available for environment
detection, battery ground fault detection, etc.

The UPS accepts external signal from zero-voltage (dry) contacts connected through external dry
contact terminals produced, and these terminals are on the static bypass assembly. Through software
programming, these signals become active when these contacts connect to +12V to ground (in the
most left side). The cables connected to the monitor board must be separated from power cables.
Moreover, these cables should be double-insulated with a typical cross-section of 0.5 to 1mm
maximum connection length between 82 and 165ft. (25-50m). The ATB has several input dry cont acts.

Figure 17 Input dry contacts

Electrical Connections—UPS

2

for a

Table 5 Description of dry contact input port

Position

J9.1 ENV_DET Detection of battery room environment (normally closed); On Generator; EVN
J9.2 BAT_GND Battery short to ground detection; BtG; On Generator
J9.3 BAT_READY Not Used
J9.4 +12V +12V power supply
J4.1 BAT_IN Internal battery temperature detection
J4.2 +12V +12V power supply
J4.3 BAT_OUT External battery temperature detection
J4.4 GND Power supply GND

Name Description

33

3.4.2 Output Dry Contacts

J10

MFP_O

MFP_S

MFP_C

J12

INV_C

INV_S

INV_O

J11

BFP_C

BFP_S

BFP_O

NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of con nectors J10, J11 and J12.

The Auxiliary Terminal Block has three output dry contact relays (see Figure 18 and Table 6).

Figure 18 Output dry contacts and EPO wiring

Table 6 Output dry contact relays

Position Name

J11.2 BFP_O Bypass feedback protection relay. Normally open. Closed when bypass SCR is shorted.
J11.3 BFP_S Bypass feedback protection relay center
J11.4 BFP_C Bypass feedback protection relay. Normally closed. Open when bypass SCR is shorted.
J12.2 INV_O Inverter mode relay. Normally open. Closed when UPS is in inverter mode.
J12.3 INV_S Inverter mode relay common
J12.4 INV_C Inverter mode relay. Normally closed. Open when UPS is in inverter mode.
J10.2 MFP_O Main feedback protection relay. Normally open. Closed when bypass SCR is shorted.
J10.3 MFP_S Main feedback protection relay common
J10.4 MFP_C Main feedback protection relay. Normally closed. Open when bypass SCR is shorted.

Description

Electrical Connections—UPS

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.

3.4.3 Liebert BDC Interface

The Liebert BDC interface is on the Auxiliary Terminal Block at J5. Refer to Figure 16 for the
location of connector J5 and to Figure 17 for circuit details.

Table 7 Liebert BDC interface

Position Name

J5.1 Q3BP Input circuit breaker status of external Liebert BDC
J5.2 Q2BP Output circuit breaker status of external Liebert BDC
J5.3 EXT_OUT Input circuit breaker status of internal Liebert BDC
J5.4 GND Power supply GND

These contacts cannot be active unless they are set via software.

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.

NOTE

Refer to Table 11 and Figure 27 for the Liebert BDC wiring.

Description

34

3.4.4 Battery Cabinet Interface Connectors

The battery cabinet interface is on the Auxiliary Terminal Bl ock at J8 and J4 . Refer to Figure 16 for
the location of connectors J4 and J8 and to Figure 17 for circuit details.

Table 8 Battery cabinet interface

Position

J4.1 GND Power Ground
J4.2 BAT_OUT External Battery Temperature Detection
J4.3 +12V +12V Power Supply
J4.4 BAT_IN Internal Battery Temperature Detection
J8.1 DRIVER BCB Driver Signal
J8.2 BCB_IN BCB Contact State
J8.3 GND Power Ground

J8.4 ONLINE

Name

Description

BCB On-Line - Input (N.O.) - This pin will become
active when the BCB interface is connected.

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.

NOTE

Refer to Table 10 and Figure 23 for battery cabinet wiring.

Electrical Connections—UPS

35

3.4.5 EPO Input—Optional

J6

EPO-NO EPO-NC

J6

EPO-NO

EPO-NC

+12V +12V

+12V

+12V

NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of connector J6.

NOTICE

Risk of exceeding internal voltage limits. Can cause equipment damage.
Do not apply more than 12V to the Emergency Power Off (EPO) i npu t. Ex ceed ing 1 2V on this

input can damage the Liebert APM’s internal circuitry and control boards. Exceeding 12V will
also put the Liebert APM in an EPO state, and the unit will not reset, making it non­functional.

The UPS has an Emergency Power Off (EPO) function operated by a button on the control panel or by
a remote contact provided by the user. The EPO button is under a hinged, clear plastic shield.

The J6 connector, shown in Figure 19, is the remote EPO input interface. The EPO has NO/NC
contacts that become active when shorting terminals J6: 3 and 4 or open terminal connection J6: 2
and 1.

If an external Emergency Stop capability is required, it is connected at terminals J6: 1 and 2 and at
J6: 3 and 4 on the monitor board. It also is connected to the Normally Open or Normally Closed
remote stop switch between these two terminals using shielded cable (see Figure 19 and Table 9). If
this function is not used, terminals J6:3 and 4 must be opened and J6:1 and 2 must be closed.

Figure 19 EPO wiring and signal names for J6

Electrical Connections—UPS

Table 9 EPO input contact relays

Position Name Description

J6.1 EPO_NC EPO Activated when opened to J6.2
J6.2 +12V EPO Activated when opened to J6.1
J6.3 +12V EPO Activated when shorted to J6.4
J6.4 EPO_NO EPO Activated when shorted to J6.3

NOTE

The Emergency Stop action within the UPS shuts down the rectifier, inverter and static
bypass. It does not internally disconnect the input power supply. To disconnect ALL power to
the UPS, open the upstream feeder breaker(s) when the remote EPO is activated.

NOTE

Normally Closed EPO – J6: 1, 2, these terminals are supplied factory-linked on the Bypass
Module on the UPS and must remain installed if using NO contacts.

NOTE

All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.

36

4.0 BATTERY INSTALLATION

!

!

4.1 Introduction

Battery Installation

Emerson recommends that the batteries in external cabinets be the same type and made by the same
manufacturer as the internal batteries in the Liebert

If multiple sets of batteries connected in parallel are used to provide the required battery backup run
times, fit each set with an isolating device to permit working on one of the battery sets while leaving
the others in service and providing backup protection.

4.2 Safety

Special care should be taken when working with the batteries associated with the Liebert APM
system equipment.

®

APM™.

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
The Liebert APM’s internal batteries are connected and energized even if the UPS is turned

Off. To minimize the risk of injury, a properly trained and qualified service person should
disconnect internal batteries before any maintenance is performed on the unit.

When all batteries are connected together, the battery terminal voltage may exceed 324V and
is potentially lethal.

The center of the battery is connected to the neutral of the UPS and is grounded.
A battery can present a risk of electrical shock and high short circuit current. The following

precautions should be observed when working on batteries:

• Remove watches, rings and other metal objects.

• Use tools with insulated handles.

• Wear rubber gloves and boots.

• Do not lay tools or metal parts on top of batteries.

• Disconnect charging source prior to connecting or disconnecting battery terminals.

• Determine whether the battery is grounded. If the battery is grounded, remove source of
the ground. Contact with any part of a grounded battery can result in electrical shock. The
likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance.

When replacing batteries, replace with batteries of the same type and manufacturer, or equivalent.
Refer to 11.2 - UPS Environmental for a list of approved batteries or contact your Emerson
representative.

CAUTION

Batteries used in the Liebert APM and its auxiliary cabinets must be of an approved type.
Replacing batteries with an incorrect type can cause an explosion and fire. Refer to Tables 39
and 40 for acceptable batteries.

Do not dispose of batteries in a fire. The batteries may explode. Do not open or mutilate
batteries. Released electrolyte is harmful to the skin and eyes. It is toxic.

37

4.3 UPS Batteries—Liebert® APM 45kVA Frame Only

!

The Liebert APM’s internal batteries are fully charged before the unit is shipped. During storage and
transportation, some charge is lost. All batteries should be recharged before use. The battery charger
works only when the Liebert APM is connected to input power and turned On.

NOTE

Full safety instructions concerning the use and maintenance of UPS batteries are provided in
the appropriate battery manufacturer's manuals, available on the manufacturer’s Web site.

The battery safety information contained in this section relates to key considerations that must
be taken into account during the installation design process and might affect the design
outcome, depending on your installation.

4.4 External Battery Cabinet Installation

4.4.1 Matching Battery Cabinets

A matching battery cabinet is available. Refer to Figure 20. The same model battery cabinet may be
installed in parallel in multiple cabinet strings for additional capacity. Battery run time depends on
the cabinet model, the number of cabinets and the load on the UPS.

Handling—The battery cabinet has casters to facilitate movement over short distances. The bottoms
of the battery cabinets are reinforced to permit movement by forklift over longer distances.

Inspection—Remove all panels and visually inspect the batteries, bus connections, and cabinet for
any damage. Exercise caution; voltage is present within the battery cabinet even before installation.
If there are signs of damage, do not proceed. Call Liebert Services at 1-800-542-2378.

Battery Installation

Storage—The batteries can be stored for up to six months without appreciable deterioration. If
planning to store a battery cabinet for longer than six months or at temperatures higher than 77°F
(25°C), contact Liebert Services for recommended precautions.

The following notes, in conjunction with the diagrams (Figure 20), illustrate the broad principles to
be followed when fitting and connecting the majority of battery cabinet installations.

CAUTION

Any battery system should be installed by properly trained and qualified personnel.

When installing an external battery cabinet that is NOT a Lieber t APM battery cabinet, the customer
must provide overcurrent protection. See Table 43 for sizing of protection devices.

NOTE

When using an external battery supply that is not provided with the UPS, please make
reference to the battery manufacturer’s installation manual for battery installation and
maintenance instructions, available on the manufacturer’s Web site. When replacing batteries,
Emerson recommends that the batteries in external cabinets be the same type used internally in
the Liebert APM. See Tables 39 and 40 for batteries that are approved for use with the Liebert
APM.

38

4.4.2 Connecting the Batteries

603705
Pg. 1, Rev. 1

X8

Tray 1

Tray 2

Tray 3

Tray 4

12

34

42

32

39

2X

Detail B
4X

40

B

603705G2 ASSY BATT NXRA 600 BATT CAB HX330
603705G4 ASSY BATT NXRA 600 BATT CAB HX300
603705G5 ASSY BATT NXRA 600 BATT CAB HX205
603705G10 ASSY BATT NXRA 600 BATT CAB HX150

If the Liebert® APM™ battery cabinets are installed on a raised floor, the battery power cables and
circuit breaker control cables may be routed to the UPS cabinet through the bottom of the cabinet.

If the Liebert APM battery cabinets are installed adjacent to one another on a solid floor, these cables
may be passed between the cabinets through slots in the lower sides of the cabinets.

Intertray connections must be made before the battery cabinet may be used.

Figure 20 Battery cabinet, 600mm wide—details

Battery Installation

39

Figure 21 Battery trays for 600mm battery cabinet

HX330

HX300

HX205

HX150

Battery Installation

40

Figure 22 Battery cabinet with trays for 900mm battery cabinet

603797

Page 1, Rev. 3

Battery Installation

41

4.4.3 Installation Considerations

Position—Liebert battery cabinets come in versions specific to the left side of the UPS. If the system
includes a matching Liebert BDC, the cabinet should be mounted to the right of the UPS ( nearest t he
busbars) and the battery cabinet(s) should be installed to the left of the UPS.

The battery cabinet(s) are designed to be located conveniently next to each UPS module on the left
side only and are also available in stand-alone configurations with painted side panels. The front
access design eliminates side and rear service clearance requirements. Refer to Table 37 for battery
cabinet dimensions and weights.

Bolt-On Cabinets—Matching battery cabinets are designed to bolt only onto the left side of the UPS
module cabinet. Use bolts that ship with each unit to connect cabinet frames at posts, two places in
the front and two places in the rear.

Service Clearance—Allow front access to the battery cabinet at all times for maintenance and
servicing. Electrical codes require that the battery cabinet be installed with no less than 3 feet (1m) of
clearance at the front of the cabinet when operating. Side and rear panels do not require service
clearance.

Cables—Cables may be run between the cabinets through cutouts in the top of the cabinet,
eliminating the need for external conduit runs. Route cables before moving cabinets into final position
for bolting together. No top or bottom entry cables are required, except for remotely located cabinets
which require conduits.

Software—To allow the UPS to accurately display the battery run time, the number of battery
cabinets must be noted when performing initial startup and setup using the configuration software.
This is to be performed by the Liebert Services engineer when commissioning the unit.

Casters and Adjustable Stops—The adjustable stops are not designed to bear the full weight of the
cabinet. Lower the stops until they are finger-tight in contact with the floor. Then tighten a small
amount with a wrench (less than two turns) to give a good friction fit. When mounting the battery
cabinet on seismic stands, ensure that the casters are bearing the weight of the cabinet.

Battery Installation

4.4.4 Connecting the Battery Cabinet to the UPS

After the battery cabinet equipment has been positioned and secured for operation and the batteries
have been connected, connect the power cables as described below (see Figure 23).

1. Verify that all incoming high and low voltage power circuits are de-energized and locked out or
tagged out before installing cables or making any electrical connections.

2. Remove the UPS right side panel to gain access to the ground and battery busbars.

3. Remove the battery cabinet front panel to gain access to the busbars.

4. Connect the safety ground and any necessary bonding ground cables to the copper ground busbar.
(example: UPS located on the bottom of the equipment below the power connections).

All cabinets in the UPS system must be connected to the user's ground connection.

NOTE

The grounding and neutral bonding arrangement must be in accordance with the National
Electrical Code and all applicable local codes.

5. Connect the system battery cables from the UPS battery terminals (+ N -) to battery cabinet
breaker BCB (+ N -) as shown in Figure 23. Be sure that the battery connections are made with
the right polarity, and tighten the connections to 240lb-in. (27N-m) (M10 bolt). Do not close the
battery circuit breaker before the equipment has been commissioned.

6. Connect TB1 from battery cabinet to J4 and J8 on the UPS according to Table 10.

NOTE

The shunt trip drive capability for the battery breaker is 220VDC at 2.4A.

42

Battery Installation

Table 10 Control wiring for Liebert

From To

Liebert APM UPS Bypass

Module (X2 J4 & J8)

J4-2 TB1-12
J4-3 TB1-11
J4-4 TB1-10
J8-1 TB1-6
J8-2 TB1-7
J8-3 TB1-8
J8-4 TB1-9

Battery Cabinet

Terminal Strip (TB1)

®

APM™ to battery cabinet

Figure 23 Battery cabinet connection to Liebert APM

43

4.5 Battery Ground Fault Detection Set

Battery Cabinet

Breaker

Battery

Cabinet

208VAC

Cu rr en t Tr an sfor m er
W4-A140S

Static Bypass

Module

APM

+12V

BAT_GND

4

2

Batt_+

Batt_-

Batt_N

X

X

J9

Battery Gro und

Fault Detection Device

ULC3661SCI

J1

K1 K2 I2 I2

J5

+15V
GND

-15V

UHW241M5

Power Board

In addition to any residual current device mounted externally and upstream the UPS or when
optional isolation transformers are fitted to the UPS, an optional residual battery current device can
be fitted to detect leakage current so as to ensure the normal operation of the system. Residual
current range monitored: 30mA ~ 3000mA.

Power supply: 208VAC (L-L)
When a battery ground fault is detected, an alarm will appear on the UPS display panel.
The battery ground fault detection set contains one current transformer and one DC-sensitive

residual current monitor. The connection of this set for UPS is shown in Figure 24.

Figure 24 Wiring of battery ground fault detection set

Battery Installation

4.6 Non-Standard Batteries

When batteries other than a matching battery cabinet are used, a remote battery disconnect switch
with overcurrent protection is required per the National Electrical Code. Contact your local Emerson
sales representative about this option. Refer to Figures 67 and 68 for details.

Install battery racks, cabinets and batteries in accordance with the manufacturer's instructions.
Verify that the battery area has adequate ventilation and battery operating temperature complies

with the manufacturer's specifications and with all applicable national and local codes.
If you have any questions concerning batteries, battery racks or accessories, contact Liebert Services

at 1-800-543-2378.

NOTE

The user-supplied battery DC bypass breakers or fuses should have a minimum overload
rating of 8kA and 500V.

44

Liebert® BDC

UAM01004
Rev. 3

Field-Supplied Wiring

Notes

1. Install in accordance with national and local electrical codes.

2. Input and bypass must share the same single source.

3. UPS system input and output cables must be run in separate conduits.

4. Control wiring must be run in separate conduits.

5. Optional 54-pole, 225A for 45kVA frame only or optional 54-pole, 400A
for 90kVA frame only.

6. Transformer available: 480V or 60 0V input.

* System
AC Input

3-Wire + GRD

AC Output

208V

4-Wire + GRD

Optional

54-Pole

See Note 5

Local Grounding

Electrode

See Note 1

BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection by Others

Static Bypass

Bypass Distribution Cabinet

UPS Cabinet
Battery

BIB

MIB

MBB

™

5.0 LIEBERT® BDC

™

The Liebert BDC is designed to operate in UPS mode, bypass mode and maintenance mode. The
Liebert BDC offers either 45kVA or 90kVA capacity to match the associated Liebert APM frame
offerings. Each of the Liebert BDC capacities offer optional 480V and 600V internal transformers as
well as multiple output distribution selections.

Figure 25 Single input UPS with external Liebert BDCwith optional internal transformer—typical

configuration

5.1 Normal (UPS) Mode

While the Liebert BDC is in Normal mode (MBB open; BIB/MIB closed), the UPS is supplying the
connected load with continuous, high-quality AC power. In this mode of operation, the load is
protected by the UPS.

45

5.1.1 Bypass Mode

!

When the Liebert BDC is in Bypass mode, it provides an alternate path for power to the connected
equipment. Should the UPS need to be taken out of service for limited maintenance or repair, manual
activation of the bypass will cause an immediate transfer of the equipment from the UPS inverter to
the bypass source. In this mode, power will still be supplied to the UPS; however, the load is NOT
protected by the UPS.

5.2 Maintenance Mode

When the Liebert BDC is in Maintenance mode (MBB closed; BIB/MIB open), it provides an alternate
path for power to the connected equipment should the UPS need to be taken out of service for limited
maintenance or repair. In this mode of operation, no power is supplied to the UPS and the load is
NOT protected by the UPS.

5.3 Locating the Cabinet

This Liebert BDC may be mounted to the left of the UPS or installed as a stand-alone unit. In either
case, ensure that the unit is in a well-ventilated area and that there is clearance for access to the
switches and cable connections as required by national and local codes.

5.4 Cable Installation

5.4.1 Wiring Preparation

Liebert® BDC

™

Be sure that the unit is not connected to any AC utility power source or UPS before installing any
wiring to this unit. This Liebert BDC should be installed by a qualified / certified electrician.

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Read this section thoroughly before attempting to install wiring to this unit. Read and

comply with all warnings and cautions in this manual.

Removing the Cover Plates

Plates cover the input and output terminals on the front of the Liebert BDC (see Figure 26). Remove
these and keep the screws and plates for reinstallation.

Figure 26 Liebert BDC—access plate removed

46

5.4.2 Power Cable Installation

Refer to Table 43 when selecting cables.

NOTE

Transient and steady state earth leakage currents may occur when starting the equipment.
This should be taken into account when selecting ground current detection devices because
these will carry the earth leakage currents of both the UPS equipment and the load.

5.4.3 Input/Output Wiring

Follow the steps below to connect the input wiring:

NOTE

Input wiring must be installed using conduit if cabinet is not mounted to the immediate right
of the UPS.

1. Locate the input wiring access (top or bottom access), remove the conduit landing plate and punch
the appropriate size hole for the size conduit being used. Pull the three/four input wires through
it, allowing some slack for installation. For cabinets that are located to the immediate left of the
UPS, the access plate is on the lower right of the cabinet. Remove the access plate and verify that
the edge guarding is installed and intact.

2. Secure the conduit to the access plate of the Liebert BDC.

3. Input power cables connect to the system input circuit breaker; refer to Figure 41 and to
Table 18.

4. Connect the ground (earth) wire to the earth busbar and tighten it to 240lb-in. (27N-m) (M10
bolt).

5. Locate UPS input and output cables and access panel to UPS on lower right side.

Liebert® BDC

™

NOTE

If the Liebert BDC is not to be bolted to the UPS, use either top or bottom access plate.

6. Connect the system ground cable between the Liebert BDC and UPS and tighten the connections
to 240lb-in. (27N-m) (M10 bolt).

7. Connect the system input cables between the Liebert BDC “UPS Input” Busbars (A-B-C N
terminals) and UPS input busbars (A-B-C N terminals) and tighten the connections to 240lb-in.
(27N-m) (M10 bolt).

8. Connect the system output cables between the Liebert BDC 'UPS Output' Busbars (A-B-C N
terminals) and UPS output busbars (A-B-C N terminals) and tighten the connections to 240lb-in.
(27N-m) (M10 bolt).

9. Connect TB1 from the Liebert BD C to J5 and J12 on the Liebert

®

APM™.

NOTICE

Risk of improper wiring connection. Can cause equipment damage.
The control wire must be installed to ensure proper operation of the system and fully protect

the load when switching between bypass cabinet and UPS.

Table 11 Control wiring for Liebert APM UPS to Liebert BDC

From To

Liebert APM UPS Bypass

Module (X2 J5 & J12) Liebert BDC Terminal Strip (TB1)

J12-3 TB1-11
J12-4 TB1-12

J5-1 TB1-3
J5-3 TB1-6
J5-4 TB1-5

Jumper TB1-4 to TB1-5

47

Liebert® BDC

™

Figure 27 BDC connection to Liebert® APM

™

NOTE

Install jumper on TB1 pins 4 and 5.
For startup procedure, see 10.2 - UPS Startup.

48

5.5 Bolting Cabinets Together

A

Hardware for bolting units is in a bag attached to
the LiebertAPM. See form included with UPS.

Place cabinets so mounting holes are aligned.
A bolt from the adjacent cabinet may be screwed into the threaded
top hole, or a bolt may be inserted through the lower hole and
screwed into the threaded hole in the adjacent cabinet.

NOTE

UPS wiring must be completed before the cabinets are bolted together.

1. Line up cabinets so that mounting holes are aligned.

Liebert® BDC

™

Figure 28 Bolting Liebert

®

APM™ to a Liebert BDC

2. Using supplied hardware, bolt the cabinets together. The bolts may be inserted from either the
UPS side or from the Liebert BDC side, whichever is more convenient.

49

6.0 INSTALLATION DRAWINGS

Installation Drawings

The diagrams in this section illustrate the key mechanical and electrical characteristics of the
Liebert

®

APM™ UPS System cabinets (UPS, Liebert BDC and battery).

Figure 29 UPS dimensions- front view

Figure 30 Lineup arrangement, Liebert APM with battery and Lie bert BDCs

50

Figure 31 UPS dimensions continued, center of gravity—side, top and bottom views

Refer to Tables 12 and 14 for Dimensions X, Y and Z in each Liebert APM model.

Installation Drawings

51

Figure 32 Liebert APM with top fan kit

Notes

1. All dimensions ar e in inc hes (mm).

2. 24" (610) mi nimum clearance above unit and 36" (914) front ac cess
required for ser v ice.

3. Keep cabinet wit hin 15 degr ees of vertical.

4. Top and bottom cable entry available through removable ac c es s plates.
Remove, punch to s uit conduit size and r eplace.

5. Unit bott om is structur ally adequate for f or k lift handling.

6. Control wiring and power wiring must be run in separ at e conduits.

UAM0212A
Pg. 1, Rev. 1

Caster

Mechanical
Stop

DETAIL A

Top Fan
Flange to
Flange

13.2"
(335mm)

12.1"

(308mm)

20.7" (526mm)

9.2"

(235mm)

0.8"

(21mm)

07.6"

(194mm)

Top
Fan

Power Cable
Entry 21.26" x 7.87"
(540x 200mm)

TOP VIEW

78.7"

(2000mm)

31.8"

(808mm)

FRONT

OVERALL

FRONT VIEW

RIGHT SIDE VIEW

LEFT SIDE VIEW

BOTTOM VIEW

FRONT

FRONT

Dim. Y

See Pg. 2

Dimension

X

Dimension Z

Display

Center of

Gravity

Center of

Gravity

Vent Screen

Front and Back

See Pg. 2

See Pg. 2

3"

(77mm)

23.4"

(595mm)

See Detail A

28.3"

(718mm)

Bracket
Centers

34.3"

(871mm)

1.4"

(36mm)

8.9"

(226mm)

28.3" (719mm)

Vent Screen

Power Cable Entry

21.26" x 7.87
(540mm x 200)

31.5" (800mm)

w/o Side Panels

39.5"

(1000mm)

7. Only copper c ables ar e recommended.

8. All wiring is t o be in ac cordance with nationaland loc al electrical codes.

9. See Pg. 2 of 5 drawing: UAM02012B f or weight table and center s of gravity f or UP S at 208 V.

10. See Pg. 3 of 5 drawing: UAM02012C for weight table and center s of gravity for UPS at 480 V.

11. See Pg. 4 of 5 drawing: UAM02012D for weight table and centers of gr avi ty for UPS at 600 V.

12. See Pg. 5 of 5 drawing: UAM02012E for weight table and centers of gravity for UPS with internal
maintenance bypass .

Installation Drawings

52

Table 12 Center of gravity and weights for Liebert® APM™ 90 kVA frame

Center of Gravity

KVA Rating

No Internal Options

15 16.65 (423) 37.64 (956) 18.78 (477) 796 (362) 866 (394)
30 16.18 (411) 38.66 (982) 18.54 (471) 872 (396) 942 (428)
45 15.79 (401) 39.88 (1013) 18.35 (466) 948 (431) 1018 (463)
60 15.47 (393) 41.30 (1049) 18.15 (461) 1024 (465) 1094 (497)
75 15.16 (385) 42.87 (1089) 17.99 (457) 1100 (500) 1170 (532)
90 14.88 (378) 44.57 (1132) 17.83 (453) 1176 (535) 1246 (567)

480V Internal Transformer

15 (350) (755) (519) 1450 (659) 1510 ()
30 (347) (786) (525) 1526 (694) ()
45 (341) (821) (530) 1602 (728) ()
60 (336) (849) (535) 1678 (763) ()
75 (334) (888) (540) 1754 (797) ()
90 (331) (921) (546) 1830 (832) ()

600V Internal Transformer

15 (365) (823) (503) 1450 (659) ()
30 (362) (856) (507) 1526 (694) ()
45 (356) (893) (512) 1602 (728) ()
60 (352) (933) (517) 1678 (763) ()
75 (348) (976) (523) 1754 (797) ()
90 (343) (1021) (531) 1830 (832) ()

Internal Maintenance Bypass

15 (407) (1116) (556) 909 (413) ()
30 (395) (1142) (562) 1061 (482) ()
45 (385) (1174) (567) 1137 (517) ()
60 (376) (1210) (572) 1213 (551) ()
75 (370) (1250) (576) 1289 (586) ()
90 (364) (1293) (579) 1365 (620) ()

Dimension X

in. (mm)

Dimension Y

in. (mm)

Dimension Z

in. (mm) Unit Shipping

Weight, lb (kg)

Installation Drawings

53

Installation Drawings

Table 13 Center of gravity and weights for Liebert® APM 90 kVA frame with top fan option

Center of Gravity

KVA Rating

Top Fan Option Only

15 (457) (961) (475) 827 (376) 897 (407)
30 (415) (988) (468) 903 (410) 973 (441)
45 (405) (1018) (463) 979 (445) 1049 (476)
60 (397) (1055) (458) 1055 (480) 1125 (510)
75 (389) (1095) (455) 1131 (514) 1201 (545)
90 (382) (1136) (450) 1027 (549) 1097 (498)

480V Internal Transformer

15 (354) (760) (516) 1481 (673) 1551 (704)
30 (351) (791) (522) 1557 (708) 1627 (738)
45 (345) (826) (528) 1633 (742) 1703 (772)
60 (340) (855) (532) 1709 (777) 1779 (807)
75 (337) (893) (537) 1785 (811) 1855 (841)
90 (335) (926) (543) 1861 (846) 1931 (876)

600V Internal Transformer

15 (369) (828) (500) 1481 (673) 1551 (704)
30 (366) (860) (504) 1557 (708) 1627 (738)
45 (360) (898) (509) 1633 (742) 1703 (772)
60 (356) (938) (514) 1709 (777) 1779 (807)
75 (352) (980) (520) 1785 (811) 1855 (841)
90 (345) (1026) (528) 1861 (846) 1931 (876)

Internal Maintenance Bypass

15 (411) (1121) (553) 940 (427) 1010 (458)
30 (398) (1148) (558) 1092 (496) 1162 (527)
45 (389) (1178) (564) 1168 (531) 1238 (562)
60 (380) (1215) (568) 1244 (565) 1314 (596)
75 (374) (1255) (573) 1320 (600) 1390 (630)
90 (368) (1296) (575) 1396 (635) 1466 (665)

Dimension X

in. (mm)

Dimension Y

in. (mm)

Dimension Z

in. (mm) Unit Shipping

Weight, lb (kg)

54

Installation Drawings

Table 14 Center of gravity and weights for Liebert APM 45 kVA frame

Center of Gravity Weight, lb (kg)

Dimension X

kVA Rating

12HX100 Batteries

15 14.29 (363) 31.50 (800) 21.30 (541) 1922 (874) 1992 (906)
30 13.94 (354) 33.46 (850) 21.59 (548.4) 1998 (908) 2068 (940)
45 13.62 (346) 35.04 (890) 21.73 (552) 2074 (943) 2144 (975)

12HX150 Batteries

15 14.25 (362) 30.91 (785) 21.54 (547) 2402 (1092) 2472 (1124)
30 13.78 (350) 32.87 (835) 21.81 (554) 2478 (1126) 2548 (1158)
45 13.39 (340) 34.72 (882) 22.05 (560) 2554 (1161) 2624 (1193)

in. (mm)

Dimension Y

in. (mm)

Dimension Z

in. (mm) Unit Shi pping

Table 15 Center of gravity and weights for Liebert APM 45 kVA frame with top fan option

Center of Gravity Weight, lb (kg)

Dimension X

kVA Rating

12HX100 Batteries

15 (367) (805) (538) 1953 (888) 1023 (464)
30 (358) (855) (580) 2029 (922) 2099 (952)
45 (350) (895) (549) 2105 (957) 2175 (987)

12HX150 Batteries

15 (366) (790) (544) 2433 (1106) 2503 (1135)
30 (354) (840) (550) 2509 (1140) 2579 (1170)
45 (345) (887) (557) 2585 (1175) 2655 (1204)

in. (mm)

Dimension Y

in. (mm)

Dimension Z

in. (mm) Unit Shi pping

55

Figure 33 UPS main components—typical unit

UAM02000
Rev. 2

Liebert APM 90kVA Frame

Liebert

®

APM™ 45kVA Frame

UAM02000
Rev. 2

Installation Drawings

56

Figure 34 UPS cable connections—45kVA and 90kVA frames

90kVA frame

45kVA frame

Installation Drawings

57

Figure 35 Battery cabinet connection to UPS

Refer to Table 16
for interconnect
wiring

Installation Drawings

58

Figure 36 Battery cabinet connection to UPS (continued)

600mm

Battery Cabinet

900mm

Battery Cabinet

Installation Drawings

®

Table 16 Interconnect wiring for Liebert

Run From To Conductors

A UPS Battery Busbar External Battery Cabinet Busbar Positive, DC Neutral, Negative
B Battery Cabi net Terminal Block TB1

APM™ to battery cabinet

UPS Static Bypass Assembly
J4 and J8

Battery Breaker Shunt and Aux Contacts

See Figure 23 for additional details.

NOTE

Wiring is supplied when the UPS and external battery cabinet are ordered as a system.

59

Figure 37 Battery cabinet outline drawing, weights and center of gravity, 600mm cabinet

Installation Drawings

60

Figure 38 Battery cabinet outline drawing, weights and center of gravity 900mm cabinet

Installation Drawings

61

Figure 39 Outline drawing, Liebert BDC for Liebert® APM™, 15-45kVA

6.3" (159)

Outside Panel

Cable EntryArea

11.4" x 13.2"

(290 x 335mm)

Cable Entry Area

11.4" x 13.2"

(290 x 335mm)

6.5" (164)

Outside Panel

6.7" (169)

Outside Panel

6.4" (162)

Outside Panel

23.7"
(602)

34.6"

(879mm)

28.3"

(719)
Bracket
Centers

5.5" (140)

23.6" (600)

Center

of

Gravity

Leveling
Feet

RIGHT SIDE

UAM06008
Rev. 4

FRONT

78.7"

(2000mm)

TOP

Maximum Door

Swing: 120°

NOTES

1. All dimensions are in inches [mm].

2. 24" (610mm) minimum clearance above unit and
36" (914mm) front access required for service.

3. Keep cabinet within 15° of vertical.

4. Top and bottom cable entryavailable through removable
access plates. Remove, punch to suit conduit size and replace.

5. Control wiring and power wiring must be run
in separate conduits.

6. Copper cables only are recommended.

7. All wiring is to be in accordance with national
and local electrical codes.

BOTTOM

X

Z

39.5" (1000)

24" (609)

Liebert BDC
with Distribution Type

Dimension, in. (mm)

Weight,*

lb (kg)XYZ

Without Panelboard 11.8" (300)

39.4"

(1000)

14.9" (379) 525 (239)

With Panelboard 11.8" (300)

39.4"

(1000)

14.9" (379) 625 (284)

* Shipping weight, add 150lb. (68kg)

6.3" (159)

Outside Panel

Cable EntryArea

11.4" x 13.2"

(290 x 335mm)

Cable Entry Area

11.4" x 13.2"

(290 x 335mm)

6.5" (164)

Outside Panel

6.7" (169)

Outside Panel

6.4" (162)

Outside Panel

23.7"
(602)

34.6"

(879mm)

28.3"
(719)

Bracket

Centers

5.5" (140)

23.6" (600)

24" (609)

X

Y

Center

of

Gravity

Leveling
Feet

UAM06010
Rev . 4

BOTTOM

RIGHT SIDE

FRONT

78.7"

(2000mm)

TOP

Maximum Door

Swing: 120°

z

39.5" (1000)

NOTES

1.All dimensions are in inches [mm].

2. 24" (610mm) minimum clearance above unit and
36" (914mm) front access required for service.

3. Keep cabinet within 15° of vertical.

4. Top and bottom cable entry available through
removable access plates. Remove, punch to
suit conduit size and replace.

5. Control wiring and power wiring must be run
in separate conduits.

6. Copper cables only are recommended.

7.All wiring is to be in accordance with national
and local electrical codes.

Liebert BDC with Distribution Type

Dimension, in. (mm)

Weight,* lb (kg)XYZ

No Distribution 11.8" (300) 39.4" (1000) 14.9" (379) 550 (250)
With 2-225A Subfeed Breakers 11.8" (300) 39.4" (1000) 14.9" (379) 660 (300)
With 400A Panelboard 11.8" (300) 39.4" (1000) 14.9" (379) 660 (300)
* Shipping weight, add 150lb. (68kg)

Installation Drawings

Figure 40 Outline drawing, Liebert BDC for Liebert APM, 15-90kVA

62

Figure 41 Liebert BDC connection to UPS

Installation Drawings

NOTES

1. All Liebert-supplied cable must be repositioned prior to and while the cabinets are b eing placed in
their final installed location.

2. All interconnection hardware supplied by Liebert.

3. AC connections must be made to the UPS module before attaching Liebert BDC to UPS module.

4. All cabling will be field-supplied when a Liebert BDC is configured as a stand-alone cabinet.

5. Liebert BDCs must attach to the right side only of the Liebert

6. Refer to the individual drawing of each piece of equipment for additional details.

63

®

APM™.

Installation Drawings

Table 17 Interconnect wiring for Liebert APM to Liebert BDC

Run

From To Conductors

A Utility AC source BDC System Input Bus Phase A, B, C
B Utility AC Source BDC System Input Bus Neutral
C BDC Bypass Isolation Breaker UPS Main Input Phase A, B, C
D BDC Bypass Isolation Breaker UPS Main Input Neutral
E UPS Output MBC Maintenance Isolation Breaker Phase A, B, C
F UPS Output MBC Maintenance Isolation Breaker Neutral
G BDC Panelboard Load AC Connection Phase A, B, C
H BDC Panelboard Load AC Connection Neutral

I Utility AC Source All Ground Connections Ground

J BDC Terminal Block TB1 UPS Static Bypass Module J5 and J12 Wiring for KO on MBC

See Figure 27 and Table 11 for additional details.

NOTE

Wiring is supplied when the UPS and Liebert BDC are ordered as a system.

Table 18 Spring washer torque application

Hardware Two Belleville Washers

M10 (3/8") 240 lb-in. (27 N-m)

Figure 42 Acceptable hardware configuration for torque application

64

Figure 43 Seismic mounting bracket details

Installation Drawings

65

7.0 OPTION INSTALLATION

7.1 Liebert IntelliSlot Communication

The Liebert® APM™ has three Liebert IntelliSlot ports to allow field-installation of option al
communication cards. Liebert IntelliSlot cards communicate via Liebert’s proprietary Velocity
protocol to cards that translate the information into such protocols as SNMP and Modbus. Other
cards provide dry contact signals for external signaling of operating status.

The Liebert IntelliSlot communication ports may be installed or removed while the Liebert APM is
operating.

7.2 Liebert IntelliSlot Web Card—SNMP/HTTP Network Interface Card

This network interface card provides all real-time data and status information as SNMPv1 traps for
connection to a 10/100-baseT Ethernet connection. The same card also will transmit the same status
information and all measured parameters for display via a Web browse r. The Lieb ert Inte lliSl o t bays
are on the right side of the control module and labeled as IntelliSlot1, IntelliSlot2 and IntelliSlot3.

Table 19 Liebert APM communication options

Port Type and

Location

Left Liebert

IntelliSlot

Center Liebert

IntelliSlot

Right Liebert

IntelliSlot

Labeled ID

Name of Port

IntelliSlot 1

IntelliSlot 2

IntelliSlot 3

Monitoring

Devices Supported

MultiPort 4
Relaycard-int
ISWEB-L
Modbus
MultiPort 4
Relaycard-int
ISWEB-L
Modbus
MultiPort 4
Relaycard-int
ISWEB-L
Modbus

Option Installation

66

7.3 Web Card—Optional

An optional Web card is available that provides remote access to the UPS. A wide variety of status
and summary information is available through an Ethernet connection.

Figure 44 Liebert IntelliSlot Web card display

Option Installation

67

7.4 Relay Card

The relay card provides voltage-free contact closures for remote monitoring of alarm conditions.
Delivering On Battery, On Bypass, Low Battery, Summary Alarm, UPS Fault and On UPS

signals, the easy-to-install card integrates with AS/400 computers (additional cable required) and
other relay contact monitoring systems.

Option Installation

The relay card is rated for 24 VAC/DC at 1A. and supported in any of the three Liebert IntelliSlot
bays on the Liebert

®

APM™.

Table 20 Relay Card pin configuration

Pin

1 UPS Fault Closed if no UPS failure

2-3 Not Used

4 UPS Fault Closed if UPS fails
5 Summary Alarm** Closed if SUMMARY ALARM** occurs
6 Summary Alarm** Closed if no alarm conditions are present
7 Any Mode Shutdown return Not supported – use External EPO terminal
8 Not Used

9 Common - Low Battery
10 Low Battery Closed if battery is OK
11 Low Battery Closed if LOW BATTERY point occurs

12-13 Not Used

14 UPS Any Mode Shutdown Not supported – use External EPO terminal
15 On UPS Closed if ON UPS (inverter) power
16 On Battery Closed if ON BATTERY power (Utility failure)

17

18 On Battery Closed if not ON Battery power (Utility OK)

19-23 Not Used

24 On Bypass Closed if ON BYPASS
25 Not Used

**A Summary Alarm occurs when any of the following conditions exist:

1. Utility power is out of the acceptable range (voltage and/or frequency).

2. UPS is in BYPASS MODE (load not on Inverter power).

3. UPS Battery is LOW.

4. UPS fault has occurred.

Function Operation

Common - UPS Fault,
Summary Alarm, On UPS, On
Battery, On Bypass

Table 21 Relay card jumper configuration

Number Connection Description

JP01 Pin 9 to Pin 17 Allows all relay COMMONS to be tied together.
Any JP02 Pin 7 to Pin 17

REMOVE - Interconnects all relay COMMONS and the (not supported)
MODE SHUTDOWN Return

68

7.5 Liebert® IntelliSlot™ MultiPort 4 Card

UPS

CPU

CPU

CPU

CPU

Pin

Assignment

Description

1 Low Battery
2Not Used
3Not Used
4Not Used
5Not Used
6Not Used
7 Low Battery Common
8 Utility Fail Common
9 Utility Fail

The Liebert IntelliSlot MultiPort 4 card provides four sets of voltage-free contact closures for remote
monitoring of alarm conditions UPS operation On Battery and battery low condition. A typical
application is to allow a maximum of four computer systems to simultaneously monitor the status
(e.g., utility power failure-low battery) of a single UPS.

This card is supported in any of the three Liebert IntelliSlot bays on the Liebert

Figure 45 Liebert IntelliSlot MultiPort 4 card pin assignment

Option Installation

®

APM™.

7.6 Alber BDSi Battery Monitoring System—Optional

The matching Liebert battery cabinets allow installing an optional Alber BDSi battery monitoring
system inside the cabinet. The Alber BDSi by Liebert continuously checks all critical battery
parameters, such as cell voltage, overall string voltage, current and temperature. Automatic periodic
tests of internal resistance of each battery will verify the battery's operating integrity. Additional
capabilities include automatic internal DC resistance tests and trend a nalysis providing the ab ility to
analyze performance and aid in troubleshooting.

The Alber BDSi system is installed inside the battery cabinet as shown in Figure 35. The monitoring
system power inlet is wired to the Alber BDSi Fuse Block on the UPS (see Figure 46). The Alber
BDSI fuse block supplies 120VAC and has an 8A fuse.

If required, power can be supplied from the output terminals of the UPS, a distribution panel or
another UPS-protected source.

For details about operating the Alber system, see the Alber Monitoring System manual.

69

Figure 46 Alber BDSi controller and input connection

Input

120VAC 50/60Hz

Rear Panel

Option Installation

70

7.7 Battery Temperature Compensation

Temperature

Sensor

TMP-2

NC

12V

GND

OUT

BCB Control
Board

X103

X105

X104

X106

X108

Static
Bypass
Module

Monitor

Board

– X2

+12V
GND

BAT_OUT

Temperature

Sensor

TMP-2

NC

12V

GND

OUT

Temperature

Sensor

TMP-2

NC

12V

GND

OUT

Temperature

Sensor

TMP-2

NC

12V

GND

OUT

+

IN

-

+

IN

-

+

IN

-

+

IN

-

12V

OUT

GND

J4

For a UPS with external batteries, an optional battery temperature interface optimizes the external
battery management by connecting up to four external temperature sensors from the battery cabinets
to a control unit inside the UPS.

Figure 47 Multi-temperature sensors

Option Installation

71

Operation

!

8.0 OPERATION

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
The Liebert

by opening the protective cover with tools cannot be serviced or replaced by the user.
Only properly trained and qualified service person nel are authoriz ed to remove the protective

covers.

The Liebert APM operates in the modes shown in Table 22. This section describes various kinds of
operating procedures under each operating mode, including transfer between operating modes, UPS
setting and procedures for turning on/off inverter.

Table 22 UPS operating modes

Operating mode Descriptions

Normal mode NORMAL UPS powers the load

Bypass mode BYPASS

Maintenance
Mode

As shown in Figure 48, the AC utility source is suppl ied thro ugh the i nput breaker, an d th e recti fier
converts the alternating current into DC power. The inverter converts the AC power from the
utility—or DC power from the batteries—into AC power for the load. The batteries power the load
through the inverter in the event of a power failure. The utility source can also power the load
through the static bypass.

If maintenance or repair of the UPS is necessary, the load can be switched without interruption in
service using the Liebert BDC.

Figure 48 Single module block diagram—Single input configuration with three-breaker Liebert BDC

®

APM™ contains high voltages internally. Components that can only be accessed

The load power supply is provided by the static bypass. This mode can be regarded
as a temporary transition mode between the normal mode and maintenance bypass
mode, or a temporary abnormal operating status.

MAINT

UPS shuts down, the load is connects to the mains through the Liebert BDC. In this
mode the load is not protected against abnormal input utility power.

72

Figure 49 Single module block diagram—Dual input configuration wit h three-breaker Liebert BDC

NOTES

1. Install in accordance with national and local elec trical codes.

2. Input and bypass must share the same single source.

3. A neutral is required from the system AC input source. A full
capacity neutral conductor is recommended. Grounding
conductors are recommended.

4. Bypass and rectifier inputs and output cables must be run
in separate conduits.

5. Control wiring must be run in separate conduits.

6. Optional 54-pole, 225A for 45kVA frame only or optional 54-pole,
400A for 90kVA frame only.

7. Customer must supply shunt trip breaker with 120V coil.

BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection
by others

Field-Supplied Wiring

UAM01023
Rev. 3

Bypass Distribution Cabinet

* Bypass
AC Input

4-Wire + GND

* Rectifier

AC Input

4-Wire + GND

See Note 7

BIB

MBB

MIB

Static Bypass

UPS Cab inet
Battery

Optional

54-Pole

See Note 6

AC Output

208V

4-Wire + GND

Operation

73

Figure 50 Block diagram—Single input configuration with four-breaker internal bypass

Operation

8.1 Static Bypass Switch

The circuit block labeled “Static Bypass” in Figure 48 contains an electronically controlled switching
circuit that enables the critical load to be connected to either the inverter output or to a bypass power
source via the static bypass line. During normal system operation, the load is connected to the
inverter and the inverter contactor is closed; but in the event of a UPS overload or inverter failure,
the load is automatically transferred to the static bypass line.

To provide a clean (no-break) load transfer between the inverter output and static bypass line, the
static switch activates, connecting the load to bypass. To achieve this, the inverter output and bypass
supply must be fully synchronized during normal operating conditions. This is achieved through the
inverter control electronics, which make the inverter frequency track that of the static bypass supply,
provided that the bypass remains within an acceptable frequency window.

NOTE

When the UPS is operating in static bypass mode or on maintenance bypass, the connected
equipment is not protected from power failures or surges and sags.

UAM01070
Rev. 2

74

8.2 Operating Modes

The UPS is designed to operate as an on-line, double-conversion, reverse-transfer system in the
following modes:

•Normal Mode

•Battery Mode

• Auto-Restart Mode

• Bypass Mode

• Battery Start Mode

• Maintenance Mode (Manual Bypass)

•Sleep Mode

• Paralleling Mode

Normal Mode

Operating in normal mode, the Liebert® APM™’s rectifier derives power from a utility AC source and
supplies regulated DC power to the inverter, which regenerates precise AC power to supply the
connected equipment. The rectifier also uses the utility source power to charge the batteries.

Battery Mode

When utility AC power fails, the Liebert APM protects the critical load by instantaneously channeling
battery power to the inverter which continues supporting the critical load without interruption. When
utility power returns and is within acceptable limits, the Liebert APM automatically shifts back to
Normal mode, with the rectifier powering the critical load.

Operation

Auto-Restart Mode

The battery may become exhausted following an extended AC utility failure. The inverter shuts down
when the battery reaches the End of Discharge voltage (EOD). The UPS may be programmed to "Auto
Recovery after EOD" after a delay time if the AC utility recovers. This mode and any delay time may
be programmed by the commissioning engineer.

Bypass Mode

When the Liebert APM is in bypass mode, the load is directly supported by utility power and is
without battery backup protection.

The Liebert APM’s static transfer switch will shift the load from the inverter to bypass mode without
an interruption in AC power if the inverter is synchronous with the bypass and any of the following
occurs:

• inverter fails

• inverter overload capacity is exceeded

• inverter is manually turned off by user

NOTE

If the inverter is asynchronous with the bypass, the static switch will transfer the load from the
inverter to the bypass WITH interruption in AC power to the critical load. This interruption
will be less than 15ms (in 50Hz), or less than 13.33ms (in 60Hz). This interruption time may be
altered by modifying the Output transfer interrupt time setting.

Battery Start Mode

The battery start option permits starting the Liebert APM with power supplied only by the batteries
(at charged condition).

75

Operation

!

Maintenance Mode

For maintenance or repair, the Liebert® APM™ may be operated in maintenance mode. To place the
Liebert APM in maintenance mode, follow the instructions in 10.4 - Switching the UPS from

Normal Operation to Maintenance Bypass.

WARNING

Risk of arc flash and electric shock. Can cause equipment damage, injury and death
The UPS input and output must be protected with ex ternal ove rcurrent protecti on devices. In

maintenance mode, the input and output busbars remain energized and present an electric
shock hazard.

Sleep Mode

Sleep mode allows equal run time on all power modules. The modules will put themselves offline for a
programmable period of 0-30 days. Once a module goes offline, another module will come back online.
Each module will rotate being online and offline.

Paralleling Mode

This option is only available on 208V Input Parallel. This mode requires the buyout panel board
paralleling gear. It can parallel the following:

• two APM’s

• 45kW or 90W frames in any module capacity

•redundant

• can allow up to 180kVA of load capacity

A Sharing Inductor is required for Parallel units.

NOTE

To parallel non-208 input voltages, an upstream transformer must drop the input voltage to
208V before the paralleling gear.

76

9.0 OPERATOR CONTROL AND DISPLAY PANEL

STATUS

EMERSON

Network Power

TM

F1 F2 F3 F4

HELP

FAULT CL EAR

EPO

INV E R TE R O FF

SILENCE ON/OFF

INV E R TE R O N

Control
buttons

LCD and Menu Buttons

Mimic
current
path

1

2

3

54

6

7

8

9.1 Operator Control Panel

The control panel and LCD on the front of the Liebert® APM™ lets the operator:

• Turn the UPS On or Off.

• Transfer into the various operating modes.

• Silence alarms.

• Check the status of the UPS and its batteries, including all measured parameters, events and
alarms.

The main areas of the control panel are shown below in Figure 51 and explained in Table 23.

• Mimic Display - view the status of the Liebert APM in single-line diagram format—indicators
show status by changing color when ON, flashing or OFF

• Liquid Crystal Display (LCD) and Navigation keys - view status and operational data from
the Liebert APM in tabular format

• Control buttons - turn the Liebert APM on or off, silence alarms

Figure 51 Overview of control panel

Operator Control and Display Panel

Table 23 Descriptions of UPS operator control and display panel

Mimic Current Path Control Buttons

Item # Function Button Function

1 Rectifier indicator (AC to DC) EPO EPO switch
2 Battery indicator (backup DC power) INVERTER ON Inverter start button
3 Bypass input indicator INVERTER OFF Inverter shutdown button
4 Inverter indicator (DC to AC) FAULT CLEAR Fault reset button
5 Load indicator (AC output) SILENCE ON/OFF Alarm mute button
6 UPS status and alarm indicator
7 Audible alarm (buzzer) Button Function
8 Protective cover for EPO button F1 through F4 and HELP LCD menu keys

NOTE

Help button menus are not active. Future units will ship with an F5 legend in place of the
HELP legend.

77

Menu Buttons

9.2 Mimic Display Indicators

STATUS

EMERSON

Netw o rk Pow er

TM

1

2

3

4

5

6

Mimic indicators

1. Rectifier indicator

2. Battery indicator

3. Bypass indicator

4. Inverter indicator

5. Load indicator

6. Status indicator

Mimic indicators

1. Rectifier indicator

2. Battery indicator

3. Bypass indicator

4. Inverter indicator

5. Load indicator

6. Status indicator

Figure 52 Mimic display indicators location

Operator Control and Display Panel

Mimic indicators show the operational status of the Liebert

®

APM™ by their color—green, amber or
red—and whether they are ON (solid), flashing or OFF. Table 24 provides a guide to interpreting the
various states of the indicators.

Table 24 Mimic display status indicators

Indicator

(see Figure 52) Green Flashing Green / Amber Red Off

1. Rectifier

2. Battery

3. Bypass

4. Inverter

Load on Rectifier

Battery Powering
the Load

Load on Bypass
Power

Inverter Powering
the Load Normally

Flashing Green: Utility normal,
but rectifier not operating

Flashing Green: Battery
pre-warning (low battery)

—

Flashing Green: Inverter on
standby

Rectifier fault

Battery or battery
converter abnormal*

Bypass out of
normal range

Inverter fault Inverter normal, but Off

5. Load UPS output On — UPS output overloaded UPS has no output power

6. Status

* Battery or battery converter abnormal events include these event messages (see Table 1 in Appendix A): No Battery, Battery Replaced,

Battery Reverse, Batt. Conv. Over. Curr., Batt. Converter Fault, Batt. Converter Overtemp.

No Alarms—UPS
Working Normally

Amber: UPS has a general
alarm

UPS has a serious alarm —

Rectifier is normal, but uti l it y
is abnormal

Battery and converter are
normal, and battery is not
discharging

Bypass Normal

78

9.3 Control Buttons

STATUS

EMERSON

Networ k Power

TM

F1 F2 F3 F4

HELP

FAULT CL EAR

EPO

INVER TER OFF

SILEN CE ON /OFF

INVE RTER ON

EPO Button Cover

EPO Button

Inverter Off Button

Fault Clear Button

Silence On/Off Button

Inverter On Button

LCD Navigation Keys

The Control Buttons on the front panel may be used to shut down the UPS completely, turn the
inverter on or off, restart the UPS after a fault and silence the alarm, as shown in Figure 53. The
function of each button is described in Table 25 .

NOTE

To activate a button properly, press and hold until you hear a short beep—about two seconds.

Figure 53 Control button layout

Operator Control and Display Panel

Table 25 Control buttons

Button

(see Figure 53) Function

EPO

INVERTER ON

INVERTER OFF

FAULT CLEAR

SILENCE ON/OFF

9.4 Alarm Buzzer

The alarm buzzer produces three types of sounds:

• Single beep - when any Control button is pressed

• Single beep repeating every two seconds - the system has a general alarm

• Continuous - the system has a serious fault

If the alarm buzzer makes no sound, the system may be operating properly or the alarm may have
been silenced manually.

Completely shuts down the UPS, including the static switch.

CAUTION: Use caution before pressing the Emergency Power Off (EPO) button. This

button completely shuts down the unit and the critical load.
Press this button to start the inverter and transfer from static bypass to inverter.

NOTE: If the inverter is not ready, this will not activate the UPS.

Press this button to shut down the inverter during operation. The load will be t ransferred
to static bypass.

After the UPS shuts down due to a fault and the alarm condition has been resolved, press
this button to clear the fault and restart the UPS.

Press this button once to silence the alarm buzzer when an alarm is active. Any new fault
will sound the buzzer again.
If the alarm buzzer is not beeping, press this button to test the alarm sound.

79

Figure 54 Alarm buzzer location

STATU S

EMERSON

Network Power

TM

F1 F2 F 3 F4

HELP

FAULT CLE AR

EPO

INV ER TE R OF F

SIL EN C E O N /O FF

INVER TER ON

Buzzer

F1 F2 F3 F4

HELP

Single APM 090kV A

02:17:47

L1-N/L2 L2-N/L3 L3-N/L1
L-N voltage (V) 121.4
L-N current (A) 12.2
Fr equency (H z) 59 .96
L-L voltage (V) 211.3
Power factor 0.00

122.7

14.2

59.96

211.6

0.00

121.7

13.5

59.96

210.5

0.00

Mai ns

UPS System Information

Current menu

Current status

Menu icons

Return to Output
Menu

Move to
Next Menu

Time

Alarms

E-Mail
Notification
Icon

9.5 LCD Overview

The LCD on the front panel has five main sections, as shown in Figure 55. Press the F1 key below
the LCD to scroll through these sections.

• UPS system information - view UPS name and model, date and time, overall status.

• LCD Menu - choose a category of data items to appear below the menus (see Table 27).

• Data and settings - view data items for the selected menu (see Table 27).

• Current status messages - check the most recent UPS event and alarm messages (see Table 1
in Appendix A).

• Navigation key icons - look at the icon above each navigation key to determine how the key
operates when pressed (see 9.6 - Navigation Keys).

Operator Control and Display Panel

The LCD displays alarm information in real time. After appearing in the current status section of the
LCD, status messages are stored in the history log—512 records can be stored and retrieved.

Figure 55 Sections of the LCD

80

9.6 Navigation Keys

ESC

?

The navigation keys on the front panel—F1 through F4 and Help—are used to access the LCD to view
the current status and other information about the Liebert

Navigation key icons on the LCD appear above each key to indicate its operation (see Table 26). The
keys are “soft keys” that can change functions according to the icon.

•Use F1 to move to the home portion of the LCD.

•Use F3 and F4 as cursor keys to move left and right or up and down, depending on the icons dis-
played above the keys.

•Use F3 and F4 on the display simultaneously to view individual Module information such as
Input and Output conditions and individual Module Firmware versio ns

•Use F2 as an ESC key.

•Use HELP to access help information on the LCD or to enter a choice.

Table 26 Icons for navigation keys

Key F1 F2 F3 F4 HELP

®

APM™.

Operator Control and Display Panel

Functions
Available

Home

9.7 LCD Menus and Data Items

The LCD menus provide access to the following categories of information and settings for the UPS.
Selecting a menu changes the information displayed in the UPS data items portion of the LCD. The
menu choices are listed below and described in detail in Table 27.

• Mains - view utility power input data: voltage, current, frequency and power factor

• Bypass - view bypass data: voltage and frequency

• Output - view output data: voltage, current, frequency and power factor

• Load - view load data: load percent, output current, output power and crest factor (CF)

• System - view system data

• Battery - view battery characteristics—voltage, current, temperature, remaining time and capac­ity—and messages when the battery is boost/float charging or disconnected

• Events - view the events log—displays all recent events added to the log (new records added at
end)

• Records - access the history log—displays all records in the log (new records added at end)

• Language - select a language for LCD text (choices appear in the native language)

• Settings - configure UPS settings: adjust the display contrast, choose a format for date display,
set the date and time, set up the UPS for modem communications (baud rate, address, mode and
phone numbers to dial for alarm notifications) and change the password

• Command - start or stop a battery maintenance test, battery capacity test or system test

• Run Time - view available backup time for the UPS and bypass

• Version - view firmware versions for the inverter, rectifier and software display board and the
model information for the UPS

Figure 56 shows a menu tree of the options available from the LCD menus.

Left Right Enter

Exit

Up Down Help

81

Figure 56 Menu tree

Battery

Battery voltage (V)
Battery current (A)
Battery temperature (°C)
Remain Time Min.
Battery capacity (%)
Battery boost charging
Battery float charging
Battery disconnected

Command

Battery maintenance test
Battery capacity test
System test
Stop testing
Freshening Charge
Stop Freshening Charge
Modem Auto-answer enable

Run Time

UPS Run Time
Byp Run Time

System

Sout (kVA)
Pout (kW)
Qout (kVAR)

Records

(history log)

Language

(Choices for
display)

Mains (input)

L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor

Load

Sout (kVA)
Pout (kW)
Qout (kVAR)
Load level %
Crest factor

Bypass

L-N voltage (V)
Frequency (Hz)
L-L voltage (V)

Output

L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor

Settings

Display contrast
Date format set
Date & time
Comm1 baud rate
Comm2 baud rate
Comm3 baud rate
Communication address
Communication mode
Callback times
Phone No.1
Phone No.2
Phone No.3
Command password
Protocol

Events

(events log)

Version

Monitor version
Rectifier version
Inverter version
Bypass version
UPS model

Operator Control and Display Panel

82

9.8 Language Selection

F1 F2 F3 F4

HELP

Single APM 090kV A

02:17:47

ENGLISH DEUTSCH
POLSKI FRANCAIS ITALIANO
ESPANOLN EDERLANDS SVENSKA

PORTUGUES

Language

The LCD menus and data display are available in 12 languages (Chinese, Dutch, English, French,
German, Italian, Japanese, Polish, Portuguese, Russian, Spanish and Swedish). To select a different
language:

1. From the main menu, press the F4 (shift) key to move the cursor to the Language menu at the
bottom of the screen.

2. Press HELP to access the language choices.

3. Press F3 and F4 (left and right arrows) as needed to highlight the desired language.

4. Use HELP to select the required language.

5. Return to the main menu by repe ated ly pressi n g F2 (ESC) and F1.
All text on the LCD will now be displayed in the selected language.

Figure 57 Language selection screen

Operator Control and Display Panel

9.9 Current Date and Time

To change the system date and time:

1. From the main menu, press the F4 (shift) key to move the cursor to the Settings menu at the
bottom of the screen.

2. Press HELP to select the Settings menu.

3. Use F3 and F4 (up and down) to sele ct the Date & Time option, then press HELP (enter).

4. Use F4 to position the cursor on the row where the date and time are displayed, then press
HELP (enter).

5. Using the F3 (up), enter the current time and date information.

6. Press HELP (enter) to save the settings.

7. Press F2 (ESC), then F1 to return to the main screen.

83

Figure 58 Date and time screen

F1 F2 F3 F4

HELP

Single APM 090kV A

02:17:47

Display contrast

Date format set Y/M/D

D/M/Y M/D/Y Y/M/D

Date & time

2010-0 7-15 02:17:45

Se ttin g s

F1 F2 F3 F4

HELP

Single APM 090 kV A

02:17:47

1

Mains volt. abno rmal

2010-0 6-07
2010-0 6-07

3

Mains volt. abno rmal

2010-0 6-07
2010-0 6-07

6

Mains volt. abno rmal

2010-0 6-07
2010-0 6-07

Records

09:48:10
09:48:10

09:48:10
09:48:10

09:48:10
09:48:10

History log
(records menu)

Operator Control and Display Panel

9.10 UPS History Log

The Liebert® APM™ displays status changes as they occur and stores that data in the history log, as
shown in Figure 59.

• History Log: When a record moves to the history log, the time the status changed is recorded.
The history log can hold up to 512 records. History log records may be viewed by accessing the
Records menu.

Figure 59 History log records

See Table 1 in Appendix A for a complete list of status messages, along with a description and any
recommended actions.

84

9.11 Types of LCD Screens

F1 F2 F3 F4

HELP

Single APM 090kVA

02:17:47

EMERSON

™

Network Power

Press any key back to main menu

F1 F2 F3 F4

HELP

Single APM 090kVA

02:17:47

L1-N/L2 L2-N/L3 L3-N/L1
L-N voltage (V) 118.4
L-N current (A) 0.0
Fr equency (H z) 59 .97
L-L voltage (V) 205.7
Power factor 0.00

119.2

0.0

59.97

208.4

0.00

121.6

13.5

59.97

207.9

0.00

Output

This section provides a quick guide to the main types of LCD screens.

9.11.1 Opening Display

As the UPS begins powering up, the opening display appears, as shown in Figure 60.

Figure 60 Opening display

Operator Control and Display Panel

9.11.2 Default Screen

After the UPS has powered up and completed a self-test, the output screen appears, as shown in
Figure 61. This window is the default screen.

Figure 61 Default screen

85

9.11.3 UPS Help Screen

F1 F2 F3 F4

HELP

F1 F2 F3 F4

HELP

Single APM 090kVA

02:17:47

EMERSON

™

Network Power

Press any key back to main menu

Transfer with Interrupt,

please confirm or cancel

This operation leads to

output shutdown,
Confirm or cancel

Press the HELP key below the LCD to display the Help window. (Press the HELP key again to exit
the Help window.)

9.11.4 Screen Saver Window

If there has been no interaction with the Liebert® APM™’s LCD for 2 minutes, the screen saver
window appears. It remains on the LCD for 2 minutes, then the screen will go dark. The LCD will
become active again when any key is pressed.

Figure 62 Screen saver window

Operator Control and Display Panel

9.12 Pop-Up Windows

Pop-up prompt windows appear when the user must confirm a choice or perform an operation. This
section describes the pop-up windows. Some operations require entering a password; refer to 9.12.7 -
Enter Control Password for help.

9.12.1 From Bypass to Inverter Mode With Power Interruption

If the bypass voltage or frequency exce eds the synch ronize d range a nd

9.12.2 From Inverter to Bypass Mode With Interruption

utility voltage or frequency is normal, the inverter cannot be in
synchronization with the bypass, and the output can only transfer to
inverter after an interruption of about 15ms when the user presses the
INVERTER ON button. Before transferring, the system will let the
user confirm whether the interruption can be accepted, as shown at right. If the bypass voltage
returns to normal before the user makes confirmation, the UPS will transfer to inverter mode
automatically. At the same time, the prompt window will close.

If the bypass voltage or frequency exce eds the synch ronize d range a nd
the UPS is in inverter mode, the system must let the user to confirm
and accept the power interruption danger before pressing the
INVERTER OFF button to shut down the output of the inverter. The
user can also cancel the shutdown operation, as shown at right. If the
bypass voltage returns to normal before the user makes the
confirmation, the UPS will transfer to bypass operation mode automatically, and at the same time the
prompt window will disappear soon.

86

9.12.3 System Self-Test

System Self-Test finished.

Please check the current

warnings

Battery will be depleted,

Confirm or cancel

Battery Self-Test aborted,

Conditi on s not met

Battery Refresh Charge

abort ed,

Conditi on s not met

Enter Control Password

*****

When a system self-test is completed, a pop-up window reports the
results of the test, as shown at right.

• Press the Help (Enter) key and the pop-up window closes.

9.12.4 Battery Capacity Test Confirmation

Operator Control and Display Panel

When a battery capacity test is started from the Command menu, the
battery will be discharged to low-battery warning level. The Liebert

™

APM

asks for confirmation before the test is started, as shown at

right.

• To confirm the choice and begin the battery capacity test, press the Help (Enter) key and the pop­up window disappears.

• To cancel the test, press the F2 (ESC) key. The pop-up window disapp ears.

NOTE

For a battery capacity test to function properly, the load must be between 20% and 100%.

9.12.5 Battery Self-Test Aborted, Condition Not Met

When a battery capacity test is started from the Command menu and
the battery self-test condition is inadequate, the Liebert APM will not
perform a battery test. User should check whether the battery state is
boost charging and whether the load level is greater than 20 percent.

• Press the Help (Enter) key and the pop-up window closes.

9.12.6 Battery Refresh Charge Aborted, Condition Not Met

When a battery refreshening charge is started from the Command
menu and battery refreshening condition fails to meet requirements,
the Liebert APM will not perform a battery refreshening charge. User
should check if boost charging condition is not enough, such as (No
battery, charger failed, etc.).

®

• Press the Help (Enter) key and the pop-up window closes.

9.12.7 Enter Control Password

When a UPS control operation requires a password, the pop-up at
right will be displayed. The password is 12345.

Use the Right or Left arrow to move the cursor along the password
field. Then use the Up and Down arrows to advance until the desired
number is displayed. Enter the password one digit at a time.

87

Operator Control and Display Panel

Table 27 UPS menus and data window items

Menu Type Item Type Explanation

L-N voltage (V) Phase voltage

Mains
(input)

Bypass

Output

Load

System

Battery

Events (event log) Displays recent events
Records (history log) Displays all records in the history log
Language (choices for text displayed) User may select any of 12 languages for LCD text.

L-N current (A) Phase current
Frequency (Hz) Input frequency
L-L voltage (V) Line-line voltage
Power factor Power factor
L-N voltage (V) Phase voltage
Frequency (Hz) Bypass frequency
L-L voltage (A) Line-line voltage
L-N voltage (V) Phase voltage
L-N current (A) Phase current
Frequency (Hz) Output frequency
L-L voltage (V) Line-line voltage
Power factor Power factor
Sout (kVA) Sout: Apparent power
Pout (kW) Pout: Active power
Qout (kVAR) Qout: Reactive power
Loadlevel % The percent of the UPS rating load
Crest factor Output current Crest Factor
Sout (kVA) Sout: Apparent power
Pout (kW) Pout: Active power
Qout (kVAR) Qout: Reactive power

Single unit
Battery voltage (V) Battery bus voltage

Battery current (A) Battery bus current
Battery temperature (°C) Internal battery temperature °C
Remain Time Min. Battery run time remaining
Battery boost charging Battery is boost charging
Battery float charging Battery is float charging
Battery disconnected Battery is not connected

When configured as a single unit, UPS displays only native load, no system
load.

88

Table 27 UPS menus and data window items (continued )

Menu Type Item Type Explanation

Display contrast Adjust the LCD display contrast

Choose the format for date display: YYYY MM DD, DD MM YYYY and MM DD
YYYY

When Liebert IntelliSlot 1 Communication mode is Modem, this parameter sets
the number of times a number is redialed to send an alarm notification.

When Liebert IntelliSlot 1 Communication mode is Modem, this is the first
phone number to be dialed (to send an alarm notification).

When Liebert IntelliSlot 1 Communication mode is Modem, this is the second
phone number to be dialed (to send an alarm notification).

When Liebert IntelliSlot 1 Communication mode is Modem, this is the third
phone number to be dialed (to send an alarm notification).

This test performs a partial discharge of the battery to obtain a rough estimate
of the battery capacity. Load must be between 20% and 80%.

This test performs a full discharge of the battery to obtain a precise measure of
the battery capacity. Load must be between 20% and 80%.

This is a self-test of the UPS. When the user activates this function, a pop-up
window appears about 5 seconds later to show the results.

Manually stops a battery maintenance test, battery capacity test or system
test.

Allows a temporary Equalize charge for the batteries. This charge is
configurable for 1 to 36 hours.

Manually enable the modem's auto-answer function.

Settings

Command
(start/stop
battery &
system
tests)

Run Time

Version

Date format set
Date & time Set the date and time

Comm1 baud rate Communication baud rate setting for Liebert IntelliSlot 1
Comm2 baud rate Communication baud rate setting for Liebert IntelliSlot 2
Comm3 baud rate Communication baud rate setting for Liebert IntelliSlot 3
Communication address This setting is applicable to RS485 communication mode
Communication mode Communication Mode Setting

Callback times

Phone No.1

Phone No.2

Phone No.3
Command password User can modify the command password.

Protocol System protocol
Battery maintenance test

Battery capacity test

System test

Stop testing

Freshening Charge
Stop Freshening Charge Manually stops a Freshening Charge.

Modem Auto-answer
enabled

UPS Run Time UPS Run Time
Byp Run Time Bypass Run Time
UPS model Provides UPS model information—for example, 208V-60Hz.
Monitor Version Monitor Firmware Version
Rectifier Version Rectifier Firmware Version
Inverter Version Inverter Firmware Version
Bypass Version Bypass Firmware Version

Operator Control and Display Panel

89

10.0 OPERATION

!

10.1 Liebert® APM™ Operating Modes

The Liebert APM can operate in any of three modes, as shown in Table 28. This section provides
instructions on switching between modes, resetting the UPS, switching the inverter On and Off and
performing other operations.

Table 28 UPS operating modes

Operating Mode Description
Normal

Operation
On Maintenance

Bypass

On Static Bypass

NOTE

1. The user controls and indicators mentioned in these procedures are identified in 9.0 ­Operator Control and Display Panel.

2. The audible alarm may sound at various points during these procedures. It can be canceled
at any time by pressing the SILENCE ON/OFF push button.

The UPS is powering the load.
The UPS is shut down but the load is connected to utility power via the Maintenance Bypass

Supply line.

NOTE: The load is not protected against disturbances in AC input power in this mode.

The load power is supplied through the static bypass line. This may be considered as a
temporary mode during load transfers between inverter and maintenance bypass or supply
under abnormal operating conditions.

Operation

NOTE

This unit refers to some modes and conditions that are set or adjusted using proprietary service
software. To take advantage of all the available features for the Liebert APM, the unit must be
commissioned by an Emerson-authorized engineer.

10.2 UPS Startup

The Liebert APM must be fully installed and commissioned before startup, and external power
isolators must be closed. Once those general conditions are met, the UPS may be started.

WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.
During this procedure the output terminals will become live.
If any load equipment is connected to the UPS output terminals, please check with the load

user and ascertain whether it is safe to apply power to the load. If the load is not ready to
receive power, then ensure that it is safely isolated from the UPS output terminals.

90