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
2.2
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1.1
2.2.1
2.3
Storing for Delayed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
UPS Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.1
2.3.2
Positioning the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4
Considerations in Moving the Liebert APM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Considerations for Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Considerations for 1+N Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
12
13
13
2.6
45kVA and 90kVA UPS Frames—Auxiliary Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7
Optional Seismic Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8
Liebert FlexPower™ Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.9
Static Bypass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.0
ELECTRICAL CONNECTIONS—UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.1
Power Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6.1
3.1.1
3.2
Cable Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10
3.3
Optional Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Rectifier and Bypass Input Supply of the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Fuses and Backfeed Breaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
17
17
18
19
20
26
27
30
30
Control Cables Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.1
Static Bypass Assembly Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
i
3.4
Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
Input Dry Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert BDC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Cabinet Interface Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO Input—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
34
34
35
36
4.0
BATTERY INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.3
UPS Batteries—Liebert® APM 45kVA Frame Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4
External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.1
4.4.2
4.4.3
4.4.4
Matching Battery Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Battery Cabinet to the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
39
42
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
5.2
Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.3
Locating the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.4
Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.1.1
5.4.1
5.4.2
5.4.3
Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Wiring Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Power Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Input/Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.5
Bolting Cabinets Together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
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
9.11.2
9.11.3
9.11.4
9.12
Opening Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Help Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen Saver Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
85
85
86
86
Pop-Up Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.12.1
9.12.2
9.12.3
9.12.4
9.12.5
9.12.6
9.12.7
From Bypass to Inverter Mode With Power Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . .
From Inverter to Bypass Mode With Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Capacity Test Confirmation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Self-Test Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Refresh Charge Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enter Control Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
86
86
87
87
87
87
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® APM™ Without Maintenance Bypass Cabinet. . . . . . . . . . . . . . . . . . 97
10.8
Switching the Liebert® APM™ from Parallel to Single UPS Operation . . . . . . . . . . . . . . . . 97
10.8.1
10.8.2
10.8.3
10.8.4
10.9
Procedure to Take UPS1 Offline While Leaving UPS2 Online . . . . . . . . . . . . . . . . . . . . . . . .
Procedure to Put UPS1 Back Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure to Take UPS2 Offline While Leaving UPS1 Online . . . . . . . . . . . . . . . . . . . . . . . .
Procedure to Put UPS2 Back Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
97
98
98
98
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
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
12.2.2
12.2.3
12.2.4
12.2.5
Record Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
112
112
112
113
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
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
Figure 38
Figure 39
Figure 40
Figure 41
Figure 42
Figure 43
Figure 44
Figure 45
Figure 46
Figure 47
Figure 48
Cabinet arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert FlexPower assembly indicators and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Static bypass assembly connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single UPS block diagram—dual input single source configuration . . . . . . . . . . . . . . . . . . . . . . .
Input busbars—Liebert APM 45kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input busbars—Liebert APM 90kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert BDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Busbars—Liebert BDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Busbars—External 600mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Busbars—External 900mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual input backfeed breaker wiring when bypass distribution cabinet not used . . . . . . . . . . . . .
Ground and neutral busbar connections—45kVA frame busbars . . . . . . . . . . . . . . . . . . . . . . . . .
Ground and neutral busbar connections—90kVA frame busbars . . . . . . . . . . . . . . . . . . . . . . . . .
Static bypass assembly connections to display cabinet and options . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary terminal block detail (static switch assembly front panel) . . . . . . . . . . . . . . . . . . . . . .
Input dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output dry contacts and EPO wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO wiring and signal names for J6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet, 600mm wide—details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery trays for 600mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet with trays for 900mm battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet connection to Liebert APM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring of battery ground fault detection set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single input UPS with external Liebert BDCwith optional internal transformer—typical
configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert BDC—access plate removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BDC connection to Liebert® APM™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bolting Liebert® APM™ to a Liebert BDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS dimensions- front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lineup arrangement, Liebert APM with battery and Liebert BDCs . . . . . . . . . . . . . . . . . . . . . . .
UPS dimensions continued, center of gravity—side, top and bottom views . . . . . . . . . . . . . . . . .
Liebert APM with top fan kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS main components—typical unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS cable connections—45kVA and 90kVA frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet connection to UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet connection to UPS (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet outline drawing, weights and center of gravity, 600mm cabinet . . . . . . . . . . . .
Battery cabinet outline drawing, weights and center of gravity 900mm cabinet . . . . . . . . . . . . .
Outline drawing, Liebert BDC for Liebert® APM™, 15-45kVA . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline drawing, Liebert BDC for Liebert APM, 15-90kVA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert BDC connection to UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acceptable hardware configuration for torque application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seismic mounting bracket details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert IntelliSlot Web card display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert IntelliSlot MultiPort 4 card pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alber BDSi controller and input connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-temperature sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single module block diagram—Single input configuration with three-breaker Liebert BDC . . .
v
14
14
15
18
20
21
22
23
24
25
26
26
28
29
32
32
33
34
36
39
40
41
43
44
45
46
48
49
50
50
51
52
56
57
58
59
60
61
62
62
63
64
65
67
69
70
71
72
Figure 49
Figure 50
Figure 51
Figure 52
Figure 53
Figure 54
Figure 55
Figure 56
Figure 57
Figure 58
Figure 59
Figure 60
Figure 61
Figure 62
Figure 63
Figure 64
Figure 65
Figure 66
Figure 67
Single module block diagram—Dual input configuration with three-breaker Liebert BDC . . . . 73
Block diagram—Single input configuration with four-breaker internal bypass . . . . . . . . . . . . . . 74
Overview of control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Mimic display indicators location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Control button layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Alarm buzzer location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Sections of the LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Language selection screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Date and time screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
History log records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Opening display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Screen saver window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Battery start button location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Typical configuration for single UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Liebert APM six-breaker buyout paralleling configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Dust filter replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
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
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
Table 17
Table 18
Table 19
Table 20
Table 21
Table 22
Table 23
Table 24
Table 25
Table 26
Table 27
Table 28
Table 29
Table 30
Table 31
Table 32
Table 33
Table 34
Table 35
Table 36
Table 37
Table 38
Table 39
Table 40
Table 41
Table 42
Table 43
Table 44
Table 45
Table 46
Table 47
Table 48
Table 49
Component service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Battery voltage, nominal and float . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Battery retorque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LED indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Description of dry contact input port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Output dry contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Liebert BDC interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Battery cabinet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
EPO input contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Control wiring for Liebert® APM™ to battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Control wiring for Liebert APM UPS to Liebert BDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Center of gravity and weights for Liebert® APM™ 90 kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . 53
Center of gravity and weights for Liebert® APM 90 kVA frame with top fan option . . . . . . . . . . 54
Center of gravity and weights for Liebert APM 45 kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Center of gravity and weights for Liebert APM 45 kVA frame with top fan option . . . . . . . . . . . 55
Interconnect wiring for Liebert® APM™ to battery cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Interconnect wiring for Liebert APM to Liebert BDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Spring washer torque application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Liebert APM communication options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Relay Card pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Relay card jumper configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Descriptions of UPS operator control and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Mimic display status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Icons for navigation keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
UPS menus and data window items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Dip switch matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Mimic indicators after initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Mimic indicators for normal mode operation with battery breaker closed . . . . . . . . . . . . . . . . . . 92
Mimic indicators for normal mode operation with battery breaker open . . . . . . . . . . . . . . . . . . . 92
Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
UPS mechanical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
45kVA Liebert BDC mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
90kVA Liebert BDC mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
600mm battery cabinet mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
900mm battery cabinet mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Batteries approved for use in External Battery Cabinet, 600mm . . . . . . . . . . . . . . . . . . . . . . . . 105
Internal batteries approved for use with 45kVA frame Liebert APM . . . . . . . . . . . . . . . . . . . . . 105
UPS currents and terminals—Input (for single-input unit, 208V operation) . . . . . . . . . . . . . . . 106
UPS currents and terminals—Input (for dual-input unit only, 208V operation) . . . . . . . . . . . . 106
UPS currents and terminals—Bypass input (for dual-input units, 208V operation) . . . . . . . . . 106
UPS currents and terminals—Output 208V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
UPS currents and terminals—Battery (288V string) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
AC/AC efficiency, loss and air exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Battery DC intermediate circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Inverter output to critical load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
vii
Table 50
Table 51
Table 52
Table 53
Table 54
Table 55
Table 56
Table 57
Bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery voltage record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit breakers with compression lugs (for power wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal block with compression lugs (for control wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery retorque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended test equipment and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazardous substances or elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS status messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
109
114
114
114
114
115
116
117
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of the
Liebert® APM™, Liebert Bypass Distribution Cabinet™ and batteries (where applicable).
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.
! 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. Released electrolyte is harmful to the skin 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
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
PbH2SO4
R
Recycle
DC voltage
AC voltage
Equipment grounding conductor
Bonded to ground
4
Introduction
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 capability to the Liebert APM in both
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 frequency 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.
1.1
Limited Life Components
The Liebert APM UPS has a design life well in excess of 10 years. Well-maintained units can continue
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
Introduction
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.
! 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 batteries, 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® Services.
Table 2
Battery voltage, nominal and float
Battery Voltage, VDC
Number of Cells
Nominal
Float
144
324
316 - 331
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.
Enersys
Battery Model #
Retorque Value
HX205-FR
HX300-FR
HX330-FR
HX400-FR
HX500-FR
HX540-FR
16HX800F
16HX925F
65 in-lb
65 in-lb
65 in-lb
65 in-lb
65 in-lb
65 in-lb
100 in-lb
100 in-lb
If the system uses a different model battery, contact Liebert® Services for the required torque value.
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.
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
Installation
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.
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
Installation
2.1
Initial Inspections
1. While the Liebert® APM™ and ancillary cabinets are still on the truck, 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 Installation
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.
! 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 produced by UPS
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
Installation
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.
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
Installation
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™ and battery cabinets must be properly prepared and secured for lifting.
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™ or battery cabinet. The straps must go under
the unit to be lifted.
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
Installation
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® APM™ modules should be close together. See 3.2.5 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.
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™ systems, the cabling impedances must be within 10% from maximum to minimum.
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.
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 Liebert® APM™ model to provide extended run time.
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.
System Composition
A UPS system can comprise a number of equipment cabinets, depending on the system design
requirements—e.g., UPS cabinet, External Battery Cabinet 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
Installation
2.6.1
Optional Cabinets
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
ALL UNITS VIEWED FROM ABOVE
Liebert
APM
Liebert
APM
Bypass
Distribution
Cabinet
Liebert APM connected only to Liebert BDC
(BDC must be on right side of the Liebert APM)
Battery
Cabinet
Liebert APM connected to Battery Cabinet (Battery Cabinets
must be on the left side of the Liebert APM)
Liebert
APM
Battery
Cabinet
Battery
Cabinet
Bypass
Distribution
Cabinet
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)
2.7
Optional Seismic Brackets
2.8
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.
Liebert FlexPower™ Assembly
Figure 2
Liebert FlexPower assembly indicators and controls
Fault LED
Run LED
DIP Switches
Battery Start
Button
Ready Switch
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
Installation
The Fault LED will illuminate red when the Liebert FlexPower assembly has a problem.
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
input current, inverter failure, output short circuit, bypass SCR short circuit fault, inverter relay
Constant Red
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,
Flashing Red
current sharing failure, module overload, inverter relay disconnection fault, bypass SCR
disconnection fault and input fuse blown.
OFF
2.9
No above failures or alarms.
Static Bypass Assembly
Figure 3
Static bypass assembly connections
J5
J4
J6
J7
J9
J8
J10
J11
J12
Monitor RS-485 RS-232
Liebert IntelliSlot
Bays 1, 2, 3
The Static bypass assembly has three Liebert IntelliSlot interface card bays and connections for
ancillary cabinets (Liebert BDC and battery) and for options.
15
Electrical Connections—UPS
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® APM™, ensure that you are aware of the
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:
• 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
Electrical Connections—UPS
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 monitoring 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.
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
Electrical Connections—UPS
3.2.4
UPS Input Configuration
By default, the Liebert® APM™ ships with internal links installed between the bypass input 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 lines 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
Bypass Distribution Cabinet
MBB
* Bypass
AC Input
BIB
4-Wire + GND
MIB
Optional
54-Pole
See Note 6
AC Output
208V
4-Wire + GND
Static Bypass
* Rectifier
AC Input
4-Wire + GND
UPS Cabinet
See Note 7
Battery
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 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.
18
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection
by others
Field-Supplied Wiring
UAM01023
Rev. 3
Electrical Connections—UPS
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 formation of
electromagnetic interference.
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
Electrical Connections—UPS
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® APM™, as shown in Figures 5 and 6. These busbars are accessible when the right side panel
is removed.
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
20
Electrical Connections—UPS
Figure 6
Input busbars—Liebert APM 90kVA frame
21
Electrical Connections—UPS
Figure 7
Liebert BDC
22
Electrical Connections—UPS
Figure 8
Busbars—Liebert BDC
23
Electrical Connections—UPS
Figure 9
Busbars—External 600mm battery cabinet
24
Electrical Connections—UPS
Figure 10 Busbars—External 900mm battery cabinet
25
Electrical Connections—UPS
3.2.7
Accessory Fuses and Backfeed Breaker Wiring
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
BDSi Fuse
Block
(optional)
Backfeed
Breaker
Fuse Block
Figure 12 Dual input backfeed breaker wiring when bypass distribution cabinet not used
Upstream Bypass Breaker
To UPS
Bypass Input
J11 on UPS
Bypass Module
Upstream Rectifier Breaker
To UPS
Rectifier Input
Backfeed Breaker
Fuse Block
Auxiliary contacts not needed
for backfeed breaker operation
J10 on UPS
Bypass Module
UAM04030
Rev. 1
NOTE
Shunt trips are required in upstream breakers to allow backfeed protection to function
properly.
26
Electrical Connections—UPS
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.
27
Electrical Connections—UPS
Figure 13 Ground and neutral busbar connections—45kVA frame busbars
28
Electrical Connections—UPS
Figure 14 Ground and neutral busbar connections—90kVA frame busbars
29
Electrical Connections—UPS
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 Electrical 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 single input source, the Rectifier input and 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 neutral and input neutral
must be separated at the input to the 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® APM™ below the Input and Bypass connections. All cabinets
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.
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 Power 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® interface
• Temperature detect interface
31
Electrical Connections—UPS
Figure 15 Static bypass assembly connections to display cabinet and options
Monitor
Operator Control Panel
J4
Battery Cabinet
J8
J5
Bypass Distribution Cabinet
J12
Bypass Backfeed Protection
J11
Mains Backfeed Protection
J10
Temp Sensor (optional) and
BCB Control Board
J4
Ground Fault (optional)
Sensor & BCB Control Board
On Generator (optional)
J9
Static
Bypass
Assembly
Figure 16 Auxiliary terminal block detail (static switch assembly front panel)
Input/output dry contact and EPO/BCB/MBC interface
J1∼J3 port can't connect to phone !
BFP_O
INV_O
MFP_O
MFP_C
MFP_S
BFP_C
BFP_S
INV_S
INPUT_1
J11
INV_C
INPUT_2
BCB_IN
DRIVER
GND
ENV_DET
ONLINE
+12V
BAT_GND
GND
OUT
+12V
BAT-IN
J9
BAT_READY
EPO-NO
LBS
Q3BP
J6
Q2BP
PARA
+12V
J3
J10
J8
EPO-NC
GND
J5
GND
PARA
+12V
J2
BAT-OUT
J7
EXT-OUT
J4
J1
Auxiliary
Terminal
Block
J12
NOTE
Terminal block connectors are on the left side of the static bypass assembly.
32
Electrical Connections—UPS
3.4
Dry Contacts
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 1mm2 for a
maximum connection length between 82 and 165ft. (25-50m). The ATB has several input dry contacts.
Figure 17 Input dry contacts
12V
12V
12V
+12V
DRIVER
BCB_IN
ONLINE
Q3BP
Q2BP
J8
EXT_OUT
GND
BAT_IN
+12V
BAT_OUT
GND
ENV_DET
BAT_GND
BAT_READY-
+12V
J5
GND
J4
J9
NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of connectors J4, J5, J8 and J9.
Table 5
Position
J9.1
J9.2
J9.3
J9.4
J4.1
J4.2
J4.3
J4.4
Description of dry contact input port
Name
Description
ENV_DET
BAT_GND
BAT_READY
+12V
BAT_IN
+12V
BAT_OUT
GND
Detection of battery room environment (normally closed); On Generator; EVN
Battery short to ground detection; BtG; On Generator
Not Used
+12V power supply
Internal battery temperature detection
+12V power supply
External battery temperature detection
Power supply GND
33
Electrical Connections—UPS
3.4.2
Output Dry Contacts
The Auxiliary Terminal Block has three output dry contact relays (see Figure 18 and Table 6).
Figure 18 Output dry contacts and EPO wiring
MFP_O
MFP_S
INV_O
MFP_C
J10
INV_S
BFP_O
BFP_C
INV_C
J12
BFP_S
J11
NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of connectors J10, J11 and J12.
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
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
Description
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
J5.4
GND
Input circuit breaker status of internal Liebert BDC
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.
34
Electrical Connections—UPS
3.4.4
Battery Cabinet Interface Connectors
The battery cabinet interface is on the Auxiliary Terminal Block 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
Name
Description
J4.1
GND
Power Ground
J4.2
BAT_OUT
External Battery Temperature Detection
J4.3
+12V
J4.4
BAT_IN
Internal Battery Temperature Detection
+12V Power Supply
J8.1
DRIVER
BCB Driver Signal
J8.2
BCB_IN
BCB Contact State
J8.3
GND
J8.4
ONLINE
Power Ground
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.
35
Electrical Connections—UPS
3.4.5
EPO Input—Optional
NOTICE
Risk of exceeding internal voltage limits. Can cause equipment damage.
Do not apply more than 12V to the Emergency Power Off (EPO) input. Exceeding 12V 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
+12V
EPO-NC
+12V
EPO-NC
+12V
EPO-NO
J6
EPO-NO
J6
+12V
NOTE: The black square () on each connector indicates Pin 1.
Refer to Figure 16 for the location of connector J6.
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
Battery Installation
4.0
BATTERY INSTALLATION
4.1
Introduction
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® APM™.
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.
! 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
Battery Installation
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.
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 Liebert 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
Battery Installation
4.4.2
Connecting the Batteries
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
12
X8
B
Tray 1
Tray 2
34
Tray 3
40
42
Tray 4
2X 32
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
39
Detail B
4X
603705
Pg. 1, Rev. 1
39
Battery Installation
Figure 21 Battery trays for 600mm battery cabinet
HX300
HX330
HX205
HX150
40
Battery Installation
603797
Page 1, Rev. 3
Figure 22 Battery cabinet with trays for 900mm battery cabinet
41
Battery Installation
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 the
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.
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® APM™ to battery cabinet
From
To
Liebert APM UPS Bypass
Module (X2 J4 & J8)
Battery Cabinet
Terminal Strip (TB1)
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
Figure 23 Battery cabinet connection to Liebert APM
43
Battery Installation
4.5
Battery Ground Fault Detection Set
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
Current Transformer
W4-A140S
Battery
Cabinet
Battery Cabinet
Breaker
Batt_+
Batt_N
Batt_-
X
X
K1
K2
I2
+15V
208VAC
UHW241M5
Power Board
GND
-15V
4 +12V
J5
J1
2
BAT_GND
J9
Battery Ground
Fault Detection Device
ULC3661SCI
4.6
Static Bypass
Module
I2
APM
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™
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
Bypass Distribution Cabinet
* System
AC Input
3-Wire + GRD
MBB
BIB
MIB
Optional
54-Pole
See Note 5
AC Output
208V
4-Wire + GRD
Local Grounding
Electrode
See Note 1
Static Bypass
UPS Cabinet
Battery
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 600V input.
5.1
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection by Others
Field-Supplied Wiring
UAM01004
Rev. 3
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
Liebert® BDC™
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
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
Liebert® BDC™
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.
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 BDC 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
Liebert® BDC™
5.5
Bolting Cabinets Together
NOTE
UPS wiring must be completed before the cabinets are bolted together.
1. Line up cabinets so that mounting holes are aligned.
Figure 28 Bolting Liebert® APM™ to a Liebert BDC
A
Hardware for bolting units is in a bag attached to
the Liebert APM. 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.
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
Installation Drawings
6.0
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 Liebert BDCs
50
Installation Drawings
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.
51
Installation Drawings
Figure 32 Liebert APM with top fan kit
Caster
Mechanical
Stop
DETAIL A
Top Fan
Flange to
Flange
13.2"
(335mm)
3"
(77mm)
20.7" (526mm)
Power Cable Entry
21.26" x 7.87
(540mm x 200)
28.3"
(718mm)
Bracket
Centers
Vent Screen
34.3"
(871mm)
Power Cable
Entry 21.26" x 7.87"
(540x 200mm)
8.9"
(226mm)
28.3" (719mm)
TOP VIEW
23.4"
(595mm)
See Detail A
9.2"
(235mm)
12.1"
(308mm)
FRONT
0.8"
(21mm)
BOTTOM VIEW
1.4"
(36mm)
31.5" (800mm)
w/o Side Panels
39.5"
(1000mm)
Top
Fan
07.6"
(194mm)
Vent Screen
Front and Back
Display
Center of
Gravity
Center of
Gravity
78.7"
(2000mm)
FRONT
LEFT SIDE VIEW
Dim. Y
See Pg. 2
See Pg. 2
FRONT
Dimension Z
Dimension
X
Notes
1. All dimensions are in inches (mm).
2. 24" (610) minimum clearance above unit and 36" (914) front access
required for service.
3. Keep cabinet within 15 degrees of vertical.
4. Top and bottom cable entry available through removable access plates.
Remove, punch to suit conduit size and replace.
5. Unit bottom is structurally adequate for forklift handling.
6. Control wiring and power wiring must be run in separate conduits.
OVERALL
FRONT VIEW
31.8"
(808mm)
See Pg. 2
RIGHT SIDE VIEW
UAM0212A
Pg. 1, Rev. 1
7. Only copper cables are recommended.
8. All wiring is to be in accordance with nationaland local electrical codes.
9. See Pg. 2 of 5 drawing: UAM02012B for weight table and centers of gravity for UPS at 208 V.
10. See Pg. 3 of 5 drawing: UAM02012C for weight table and centers of gravity for UPS at 480 V.
11. See Pg. 4 of 5 drawing: UAM02012D for weight table and centers of gravity 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.
52
Installation Drawings
Table 12
Center of gravity and weights for Liebert® APM™ 90 kVA frame
Center of Gravity
KVA Rating
Dimension X
in. (mm)
Weight, lb (kg)
Dimension Y
in. (mm)
Dimension Z
in. (mm)
Unit
Shipping
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)
()
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
Dimension X
in. (mm)
Weight, lb (kg)
Dimension Y
in. (mm)
Dimension Z
in. (mm)
Unit
Shipping
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)
54
Installation Drawings
Table 14
Center of gravity and weights for Liebert APM 45 kVA frame
Center of Gravity
kVA Rating
Dimension X
in. (mm)
Weight, lb (kg)
Dimension Y
in. (mm)
Dimension Z
in. (mm)
Unit
Shipping
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)
Table 15
Center of gravity and weights for Liebert APM 45 kVA frame with top fan option
Center of Gravity
kVA Rating
Dimension X
in. (mm)
Weight, lb (kg)
Dimension Y
in. (mm)
Dimension Z
in. (mm)
Unit
Shipping
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)
15
(366)
(790)
(544)
2433 (1106)
2503 (1135)
30
(354)
(840)
(550)
2509 (1140)
2579 (1170)
45
(345)
(887)
(557)
2585 (1175)
2655 (1204)
12HX150 Batteries
55
Installation Drawings
Figure 33 UPS main components—typical unit
UAM02000
Rev. 2
Liebert® APM™ 45kVA Frame
Liebert APM 90kVA Frame
56
UAM02000
Rev. 2
Installation Drawings
Figure 34 UPS cable connections—45kVA and 90kVA frames
45kVA frame
90kVA frame
57
Installation Drawings
Figure 35 Battery cabinet connection to UPS
Refer to Table 16
for interconnect
wiring
58
Installation Drawings
Figure 36 Battery cabinet connection to UPS (continued)
600mm
Battery Cabinet
900mm
Battery Cabinet
Table 16
Run
Interconnect wiring for Liebert® APM™ to battery cabinet
From
To
Conductors
A
UPS Battery Busbar
External Battery Cabinet Busbar
Positive, DC Neutral, Negative
B
Battery Cabinet Terminal Block TB1
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
Installation Drawings
Figure 37 Battery cabinet outline drawing, weights and center of gravity, 600mm cabinet
60
Installation Drawings
Figure 38 Battery cabinet outline drawing, weights and center of gravity 900mm cabinet
61
Installation Drawings
Figure 39 Outline drawing, Liebert BDC for Liebert® APM™, 15-45kVA
23.6" (600)
X
Cable Entry Area
11.4" x 13.2"
(290 x 335mm)
6.3" (159)
Outside Panel
39.5" (1000)
Z
6.5" (164)
Outside Panel
34.6"
(879mm)
28.3"
(719)
Bracket
Centers
23.7"
(602)
TOP
Maximum Door
Swing: 120°
Cable Entry Area
11.4" x 13.2"
(290 x 335mm) 78.7"
(2000mm)
6.7" (169)
Outside Panel
5.5" (140)
BOTTOM
Center
of
Gravity
6.4" (162)
Outside Panel
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
UAM06008
and local electrical codes.
24" (609)
FRONT
Leveling
Feet
RIGHT SIDE
Dimension, in. (mm)
X
Y
Z
Weight,*
lb (kg)
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)
Liebert BDC
with Distribution Type
Rev. 4
* Shipping weight, add 150lb. (68kg)
Figure 40 Outline drawing, Liebert BDC for Liebert APM, 15-90kVA
23.6" (600)
X
6.3" (159)
Outside Panel
39.5" (1000)
z
Cable Entry Area
11.4" x 13.2"
(290 x 335mm)
6.5" (164)
Outside Panel
34.6"
(879mm)
28.3"
(719)
Bracket
Centers
23.7"
(602)
TOP
Cable Entry Area
78.7"
11.4" x 13.2"
(2000mm)
(290 x 335mm)
6.7" (169)
Outside Panel
5.5" (140)
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 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.
BOTTOM
6.4" (162)
Outside Panel
Center
of
Gravity
Y
24" (609)
RIGHT SIDE
Leveling
Feet
FRONT
UAM06010
Rev. 4
Dimension, in. (mm)
Liebert BDC with Distribution Type
X
Y
Z
Weight,* lb (kg)
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)
11 8" (300)
32 7" (830)
24 8" (630)
1522 (692)
* Shipping weight, add 150lb. (68kg)
No Distribution With 480V Transformer
62
Installation Drawings
Figure 41 Liebert BDC connection to UPS
NOTES
1. All Liebert-supplied cable must be repositioned prior to and while the cabinets are being 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® APM™.
6. Refer to the individual drawing of each piece of equipment for additional details.
63
Installation Drawings
Table 17
Run
Interconnect wiring for Liebert APM to Liebert BDC
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
Installation Drawings
Figure 43 Seismic mounting bracket details
65
Option Installation
7.0
OPTION INSTALLATION
7.1
Liebert IntelliSlot Communication
The Liebert® APM™ has three Liebert IntelliSlot ports to allow field-installation of optional
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 browser. The Liebert IntelliSlot 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
Labeled ID
Name of Port
Monitoring
Devices Supported
MultiPort 4
Left Liebert
IntelliSlot
IntelliSlot 1
Relaycard-int
ISWEB-L
Modbus
MultiPort 4
Center Liebert
IntelliSlot
IntelliSlot 2
Relaycard-int
ISWEB-L
Modbus
MultiPort 4
Right Liebert
IntelliSlot
IntelliSlot 3
Relaycard-int
ISWEB-L
Modbus
66
Option Installation
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
67
Option Installation
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.
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
Function
Operation
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
Common - UPS Fault,
Summary Alarm, On UPS, On
Battery, On Bypass
18
On Battery
19-23
Closed if not ON Battery power (Utility OK)
Not Used
24
On Bypass
25
Not Used
Closed if ON BYPASS
**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.
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
Option Installation
7.5
Liebert® IntelliSlot™ MultiPort 4 Card
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® APM™.
Figure 45 Liebert IntelliSlot MultiPort 4 card pin assignment
CPU
Pin
CPU
UPS
CPU
Assignment
Description
1
Low Battery
2
Not Used
3
Not Used
4
Not Used
5
Not Used
6
Not Used
7
Low Battery Common
8
Utility Fail Common
9
Utility Fail
CPU
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 analysis providing the ability 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
Option Installation
Figure 46 Alber BDSi controller and input connection
Rear Panel
120VAC 50/60Hz
Input
70
Option Installation
7.7
Battery Temperature Compensation
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
Temperature
Sensor
X103
NC
12V
OUT
GND
+
IN
TMP-2
Temperature
Sensor
X104
NC
12V
OUT
GND
+
IN
TMP-2
X108
12V
OUT
GND
Temperature
Sensor
X105
NC
12V
OUT
GND
+
IN
TMP-2
BCB Control
Board
Temperature
Sensor
X106
NC
12V
OUT
GND
+
IN
TMP-2
71
Monitor
Board
– X2
+12V
BAT_OUT
GND
Static
J4
Bypass
Module
Operation
8.0
OPERATION
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
The Liebert® APM™ contains high voltages internally. Components that can only be accessed
by opening the protective cover with tools cannot be serviced or replaced by the user.
Only properly trained and qualified service personnel are authorized 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
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.
Maintenance
Mode
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.
As shown in Figure 48, the AC utility source is supplied through the input breaker, and the rectifier
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
72
Operation
Figure 49 Single module block diagram—Dual input configuration with three-breaker Liebert BDC
Bypass Distribution Cabinet
MBB
* Bypass
AC Input
BIB
4-Wire + GND
MIB
Optional
54-Pole
See Note 6
AC Output
208V
4-Wire + GND
Static Bypass
* Rectifier
AC Input
4-Wire + GND
UPS Cabinet
See Note 7
Battery
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 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.
73
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection
by others
Field-Supplied Wiring
UAM01023
Rev. 3
Operation
Figure 50 Block diagram—Single input configuration with four-breaker internal bypass
UAM01070
Rev. 2
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.
74
Operation
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.
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 external overcurrent protection 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
Operator Control and Display Panel
9.0
OPERATOR CONTROL AND DISPLAY PANEL
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
E ME R S O N
TM
8
Network Power
Mimic
current
path
3
4
1
5
Control
buttons
EPO
2
FAULT CLE AR
INV E RTE R OFF
6
STATUS
7
S ILE NCE ON/ OFF
F1
F2
F3
F4
HELP
INV E RTE R ON
LCD and Menu Buttons
Table 23
Descriptions of UPS operator control and display panel
Mimic Current Path
Item #
Control Buttons
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)
8
Protective cover for EPO button
Menu Buttons
Button
F1 through F4 and HELP
Function
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
Operator Control and Display Panel
9.2
Mimic Display Indicators
Figure 52 Mimic display indicators location
E ME R S O N
TM
3
Network Power
Mimic indicators
1. Rectifier indicator
2. Battery indicator
3. Bypass indicator
4. Inverter indicator
5. Load indicator
6. Status indicator
4
5
2
6
STATUS
1
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
Load on Rectifier
Flashing Green: Utility normal,
Rectifier fault
but rectifier not operating
Rectifier is normal, but utility
is abnormal
2. Battery
Battery Powering
the Load
Flashing Green: Battery
pre-warning (low battery)
Battery or battery
converter abnormal*
Battery and converter are
normal, and battery is not
discharging
3. Bypass
Load on Bypass
Power
Bypass out of
normal range
Bypass Normal
4. Inverter
Inverter Powering Flashing Green: Inverter on
the Load Normally standby
Inverter fault
Inverter normal, but Off
5. Load
UPS output On
UPS output overloaded
UPS has no output power
6. Status
No Alarms—UPS Amber: UPS has a general
Working Normally alarm
—
—
UPS has a serious alarm
—
* 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.
78
Operator Control and Display Panel
9.3
Control Buttons
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
EPO Button Cover
EPO Button
E MER SO N
Inverter Off Button
TM
Network Power
EPO
Fault Clear Button
FAULT CLE AR
INV E RTE R OFF
Silence On/Off Button
STATUS
S ILE NCE ON/ OFF
F1
F2
F3
F4
HELP
INV E RTE R ON
Inverter On Button
LCD Navigation Keys
Table 25
Control buttons
Button
(see Figure 53)
9.4
Function
EPO
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.
INVERTER ON
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.
INVERTER OFF
Press this button to shut down the inverter during operation. The load will be transferred
to static bypass.
FAULT CLEAR
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.
SILENCE ON/OFF
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.
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.
79
Operator Control and Display Panel
Figure 54 Alarm buzzer location
E ME R S O N
TM
Network Power
EPO
FAULT CLE AR
INV E RTE R OFF
STATUS
S ILE NCE ON/ OFF
F1
F2
F3
F4
HELP
INV E RTE R ON
Buzzer
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).
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
UPS System Information
Single
Current status
Time
APM 090 kVA
Alarms
02:17:47
L1-N/L2 L2- N/L3
L-N voltage (V) 121.4 122.7
L-N current (A) 12.2
14.2
Frequency (Hz) 59.96 59.96
L-L voltage (V) 211.3 211.6
Power factor
0.00
0.00
L3-N/L1
121.7
13.5
59.96
210.5
0.00
E-Mail
Notification
Icon
Mains
Current menu
Menu icons
Return to Output
Menu
Move to
Next Menu
F1
F2
F3
80
F4
HELP
Operator Control and Display Panel
9.6
Navigation Keys
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® APM™.
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 displayed 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 versions
• Use F2 as an ESC key.
• Use HELP to access help information on the LCD or to enter a choice.
Table 26
Key
Icons for navigation keys
F1
Functions
Available
Home
F2
F3
F4
HELP
ESC
Left
Right
Enter
?
Exit
Up
9.7
Down
Help
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.
81
Operator Control and Display Panel
Figure 56 Menu tree
Mains (input)
Bypass
Output
Load
System
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
L-N voltage (V)
Frequency (Hz)
L-L voltage (V)
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
Sout (kVA)
Pout (kW)
Qout (kVAR)
Load level %
Crest factor
Sout (kVA)
Pout (kW)
Qout (kVAR)
Battery
Events
Records
Language
Battery voltage (V)
Battery current (A)
Battery temperature (°C)
Remain Time Min.
Battery capacity (%)
Battery boost charging
Battery float charging
Battery disconnected
(events log)
(history log)
(Choices for
display)
Settings
Command
Run Time
Version
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
Battery maintenance test
Battery capacity test
System test
Stop testing
Freshening Charge
Stop Freshening Charge
Modem Auto-answer enable
UPS Run Time
Byp Run Time
Monitor version
Rectifier version
Inverter version
Bypass version
UPS model
82
Operator Control and Display Panel
9.8
Language Selection
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 repeatedly pressing F2 (ESC) and F1.
All text on the LCD will now be displayed in the selected language.
Figure 57 Language selection screen
Single
POLSKI
APM 090 kVA
02:17:47
ENGLISH
DEUTSCH
FRANCAIS
ITALIANO
ESPANOL NEDERLANDS SVENSKA
PORTUGUES
Language
F1
9.9
F2
F3
F4
HELP
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 select 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
Operator Control and Display Panel
Figure 58 Date and time screen
Single
APM 090 kVA
02:17:47
D is p la y c o n t r a s t
D a t e f o r ma t s e t
D / M/ Y
D a t e & t ime
2 0 1 0-0 7 - 1 5
Y / M/ D
Y / M/ D
M/ D / Y
0 2: 1 7 : 4 5
Settings
F1
9.10
F2
F3
F4
HELP
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
Single
APM 090 kVA
1 Ma in s v o lt . a b n o r ma l
2 0 1 0-0 6 - 0 7
2 0 1 0-0 6 - 0 7
3 Ma in s v o lt . a b n o r ma l
2 0 1 0-0 6 - 0 7
2 0 1 0-0 6 - 0 7
6 Ma in s v o lt . a b n o r ma l
2 0 1 0-0 6 - 0 7
2 0 1 0-0 6 - 0 7
Records
F1
F2
F3
02:17:47
0 9 : 4 8: 1 0
0 9 : 4 8: 1 0
0 9 : 4 8: 1 0
0 9 : 4 8: 1 0
History log
(records menu)
0 9 : 4 8: 1 0
0 9 : 4 8: 1 0
F4
HELP
See Table 1 in Appendix A for a complete list of status messages, along with a description and any
recommended actions.
84
Operator Control and Display Panel
9.11
Types of LCD Screens
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
Single
APM 090kVA
0 2 :1 7 : 4 7
EMERSON™
Network Power
Press any key back to main menu
F1
F2
F3
HELP
F4
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
Single
APM 090 kVA
02:17:47
L1-N/L2 L2- N/L3
L-N voltage (V) 118.4 119.2
0.0
L-N current (A) 0.0
Frequency (Hz) 59.97 59.97
L-L voltage (V) 205.7 208.4
0.00
Power factor
0.00
L3-N/L1
121.6
13.5
59.97
207.9
0.00
Output
F1
F2
F3
85
F4
HELP
Operator Control and Display Panel
9.11.3 UPS Help Screen
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
Single
APM 090kVA
0 2 :1 7 : 4 7
EMERSON™
Network Power
Press any key back to main menu
F1
F1
9.12
F2
F2
F3
F3
F4
F4
HELP
HELP
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 exceeds the synchronized range and
utility voltage or frequency is normal, the inverter cannot be in
Transfer with Interrupt,
please confirm or cancel
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.
9.12.2 From Inverter to Bypass Mode With Interruption
If the bypass voltage or frequency exceeds the synchronized range and
the UPS is in inverter mode, the system must let the user to confirm
This operation leads to
and accept the power interruption danger before pressing the
output shutdown,
Confirm or cancel
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
Operator Control and Display Panel
9.12.3 System Self-Test
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.
System Self-Test finished.
Please check the current
warnings
9.12.4 Battery Capacity Test Confirmation
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.
Battery will be depleted,
Confirm or cancel
• 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 disappears.
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.
Battery Self-Test aborted,
Conditions not met
• 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.).
Battery Refresh Charge
aborted,
Conditions not met
• 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
Enter Control Password
*****
Operator Control and Display Panel
Table 27
UPS menus and data window items
Menu Type
Mains
(input)
Bypass
Output
Load
System
Item Type
Explanation
L-N voltage (V)
Phase voltage
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
When configured as a single unit, UPS displays only native load, no system
load.
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
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.
Battery
88
Operator Control and Display Panel
Table 27
UPS menus and data window items (continued)
Menu Type
Settings
Command
(start / stop
battery &
system
tests)
Run Time
Version
Item Type
Explanation
Display contrast
Adjust the LCD display contrast
Date format set
Choose the format for date display: YYYY MM DD, DD MM YYYY and MM DD
YYYY
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
When Liebert IntelliSlot 1 Communication mode is Modem, this parameter sets
the number of times a number is redialed to send an alarm notification.
Phone No.1
When Liebert IntelliSlot 1 Communication mode is Modem, this is the first
phone number to be dialed (to send an alarm notification).
Phone No.2
When Liebert IntelliSlot 1 Communication mode is Modem, this is the second
phone number to be dialed (to send an alarm notification).
Phone No.3
When Liebert IntelliSlot 1 Communication mode is Modem, this is the third
phone number to be dialed (to send an alarm notification).
Command password
User can modify the command password.
Protocol
System protocol
Battery maintenance test
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%.
Battery capacity test
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%.
System test
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.
Stop testing
Manually stops a battery maintenance test, battery capacity test or system
test.
Freshening Charge
Allows a temporary Equalize charge for the batteries. This charge is
configurable for 1 to 36 hours.
Stop Freshening Charge
Manually stops a Freshening Charge.
Modem Auto-answer
enabled
Manually enable the modem's auto-answer function.
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
89
Operation
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
The UPS is powering the load.
On Maintenance
Bypass
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
On Static Bypass temporary mode during load transfers between inverter and maintenance bypass or supply
under abnormal operating conditions.
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.
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
Operation
10.2.1 Startup Procedure
To start the UPS from a fully powered-down condition:
1.
2.
3.
4.
5.
Open the external power switch.
Open the UPS door.
Connect the power supply cables.
Ensure the correct phase rotation.
Confirm that the address DIP switch of the main Liebert FlexPower assemblies are different from
each other, and they are within 1 to 6. If they are the same, adjust them to create different Liebert
FlexPower assembly addresses.
Table 29
Dip switch matrix
FlexPower Assembly Address
Flex Power
Assembly
Address Top to Bottom
Swtich Number Left to Right
1
6
5
2
3
4
5
Down
Up
Up
Down
Down
Up
Down
Up
Down
Down
4
Down
Down
Up
Down
Down
3
Up
Up
Down
Down
Down
2
Down
Up
Down
Down
Down
1
Up
Down
Down
Down
Down
NOTE
For standardization, if the quantity of modules in system is less than 6, for example 45kVA
system, Emerson recommends setting the address bits of the modules as 1, 2, 3 respectively.
6. Close the external input circuit breaker and connect input power.
The LCD activates. The rectifier indicator flashes while the rectifier is starting. The rectifier
enters normal operation state, and after about 30 seconds, the rectifier indicator stops blinking
and is illuminated in a steady green. After initialization, the bypass static switch turns on. The
mimic LEDs appear as shown Table 30.
Table 30
Mimic indicators after initialization
LED
Status
Rectifier Indicator
Green
Battery Indicator
Red
Bypass Indicator
Green
Inverter Indicator
Off
Load Indicator
Green
Status Indicator
Amber
7. Ensure that the Liebert FlexPower assembly ready switches are latched (in Down position).
8. Close the external output circuit breaker.
9. Press the INVERTER ON button for 2 seconds. The inverter indicator flashes while the inverter
is starting. After the inverter is ready, the UPS transfers from bypass to inverter, the bypass
indicator turns Off, and the inverter indicator turns On. The UPS is in Normal Mode. The mimic
LEDs will appear as shown below.
91
Operation
Table 31
Mimic indicators for normal mode operation with battery breaker open
LED
Status
Rectifier Indicator
Green
Battery Indicator
Red
Bypass Indicator
Off
Inverter Indicator
Green
Load Indicator
Green
Status Indicator
Amber
10. Close the battery breaker.
Table 32
Mimic indicators for normal mode operation with battery breaker closed
LED
Status
Rectifier Indicator
Green
Battery Indicator
Off
Bypass Indicator
Off
Inverter Indicator
Green
Load Indicator
Green
Status Indicator
Green
10.2.2 Switching Between UPS Operation Modes
To switch from Normal Mode to Static Bypass Mode—Press the INVERTER OFF button to
switch to Bypass Mode (see Figure 53).
NOTE
In Static Bypass Mode, the load is being powered by the utility and is not protected from
fluctuations in input power: spikes, sags and failure.
To switch from bypass mode to normal mode—When the UPS is in Bypass Mode, press the
INVERTER ON button. After the inverter enters normal operation, the UPS transfers to Normal
Mode.
92
Operation
10.3
UPS Battery Start
The battery start option permits starting the Liebert® APM™ with power supplied only by the
batteries (at charged condition).
! CAUTION
Before attempting to start the UPS without utility power present, ensure that the batteries
are fully charged—over 2.1V per cell—and will supply adequate run time to the load.
1. Verify that the battery cabinet is properly connected (see Figure 24) and that the battery breaker
is closed.
2. Press the battery start button on the front panel of any Liebert FlexPower assembly for two
seconds (see Figure 63 for the button’s location).
The LCD displays the start screen, and the battery indicator flashes green. It stops flashing and
becomes solid green about 30 seconds after the rectifiers enter normal operation.
3. Press and hold the INVERTER ON key for two seconds, and the UPS will begin operating in
battery mode.
Figure 63 Battery start button location
Battery Start Button on Right
Side of the Liebert FlexPower
assembly
93
Operation
10.4
Switching the UPS from Normal Operation to Maintenance Bypass
Follow the procedure below to transfer the load from the UPS inverter output to the Maintenance
Bypass system.
! CAUTION
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. Failure to follow these instructions will
result in loss of power and possible damage to critical equipment.
Before performing this operation, read any messages on the LCD to be sure that bypass
supply is regular and the inverter is synchronous with it. If those conditions are not present,
there is a risk of a short interruption in powering the load.
This procedure assumes that UPS is operating normally.
1. Press the INVERTER OFF button on the right side of the Operator Control Panel for longer than
2 seconds.
The Inverter indicator will turn Off, the status indicator will turn amber and an audible alarm
will sound. The load will transfer to static bypass (internal) and the inverter will shut off.
NOTE
Pressing the Alarm Silence Switch cancels the audible alarm, but leaves the warning message
displayed until the appropriate condition is rectified.
2. Open the Liebert BDC door to gain access to the bypass isolation breaker (BIB), maintenance
bypass breaker (MBB) and maintenance isolation breaker (MIB).
3. When the lamp indicator on the BDC is illuminated, press and hold the adjacent push button and
remove the Key from the lock (K0).
4. Insert the Key into the lock on the MBB and turn the Key.
5. Close the MBB.
6. Verify the MBB is closed. Failure to close the MBB will interrupt power to the load.
7. Open the MIB.
8. Remove the key from the lock on the MIB. Insert the key into the lock (K0) and turn the key.
9. The UPS system is now isolated from the critical load.
10. For a single-input system, the bypass isolation breaker (BIB) remains closed; this allows power to
remain present at the UPS input; refer to Figure 48.
11. For a single-source, dual-input system, the bypass isolation breaker (BIB) can be opened to
further isolate the UPS from input power; refer to Figure 64.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Wait 5 minutes for the internal DC busbar capacitors to discharge before attempting
to remove the internal protective barriers.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Even with the UPS in maintenance bypass and Off, portions of the Liebert® APM™ system are
still energized. Service must be performed by properly trained and qualified personnel only.
NOTICE
Risk of power loss to connected load. Can cause damageto equipment.
The load equipment is not protected from normal supply aberrations when the Liebert APM is
operating in the maintenance bypass mode.
94
Operation
10.5
Switching the UPS from Maintenance Bypass to Normal Operation
Follow the procedure below to transfer the load from the Maintenance Bypass system to the UPS
inverter output.
These conditions must be met for this operation to proceed:
• the UPS must be operating normally
• the BIB breaker must be closed
• the UPS system must be in the Maintenance Bypass mode of operation.
! CAUTION
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. Failure to follow these instructions will
result in loss of power and possible damage to critical equipment.
Before performing this operation, read any messages on the LCD to be sure that bypass
supply is regular and the inverter is synchronous with it. If those conditions are not present,
there is a risk of a short interruption in powering the load.
1. Verify that the Liebert® APM™ is in Maintenance Bypass mode.
NOTE
Pressing the Alarm Silence Switch cancels the audible alarm, but leaves the warning message
displayed until the appropriate condition is rectified.
2. Open the Liebert BDC door to gain access to the bypass isolation breaker (BIB), maintenance
bypass breaker (MBB) and the maintenance isolation breaker (MIB).
3. When the Lamp indicator on the BDC is illuminated, press and hold the adjacent push button and
remove the key from the lock (K0).
4. Insert the key into the lock on the MIB, and turn the key.
5. Close the MIB.
6. Verify the MIB is closed. Failure to close the MIB will interrupt power to the load.
7. Open MBB.
8. Remove the key from the lock on the MBB.
9. Insert the key into the lock (K0) and turn the key.
The UPS system is now supplying power to the critical load.
10. Press the INVERTER ON button on the right side of the Operator Control Panel for longer than
2 seconds.
The Inverter indicator flashes while the inverter is starting.
After the inverter is ready, the UPS transfers from static bypass to inverter, the bypass indicator
turns Off and the inverter indicator turns On. The UPS is in Normal Mode. The indicator will
appear as shown in Table 32.
95
Operation
10.6
De-Energize Liebert APM with Maintenance Bypass Cabinet.
! CAUTION
This procedure will remove power from the critical bus.
To de-energize the system:
1. On the UPS control panel, press and hold the INVERTER OFF button for 2 seconds.
2. Open all battery circuit breakers(s) including internal battery breaker (if applicable).
! CAUTION
Performing the next step will shut down the critical load.
3. If the MBC is an Emerson cabinet, open the Maintenance Isolation Circuit Breaker (MIB). If the
MBC is a customer-issued switchgear or a non-Emerson cabinet, open the breaker(s) that supply
power to the critical bus.
4. Open the Rectifier Input Circuit Breaker and Bypass Input Breaker (if dual input). If the MBC is
a customer-issued switchgear or a non-Emerson cabinet, open the breaker(s) that supply power to
the UPS input and bypass input (if dual input).
5. Allow 5 minutes for all DC circuits and capacitors to fully discharge.
6. Open the external feeder breaker to the MBC or bypass switchgear.
7. Install a Lockout/Tagout on the external feeder breaker to the MBC or bypass switchgear.
8. Use a digital multimeter to verify there is no AC or DC voltage present at the UPS input, output
and bypass bus bars.
9. Use a digital multimeter to verify there is no AC or DC voltage present at the MBC BIB, MIB and
MBB breakers.
96
Operation
10.7
De-Energize Liebert® APM™ Without Maintenance Bypass Cabinet
! CAUTION
This procedure will remove power from the critical bus.
To de-energize the APM:
1. On the UPS control panel, press and hold the INVERTER OFF button for 2 seconds.
2. Open all battery circuit breakers(s) including internal battery breaker (if applicable).
! CAUTION
Performing the next step will shut down the critical load.
3.
4.
5.
6.
Open the UPS output circuit breaker(s).
Open the UPS input circuit breaker and bypass circuit breaker (dual input systems only).
Allow 5 minutes for all DC circuits and capacitors to fully discharge.
Use a digital multimeter to verify there is no AC or DC voltage present at the UPS input, output
and bypass bus bars.
Figure 64 Typical configuration for single UPS
Static Bypass
* System AC Input
4-Wire + GRD
See Note 5
Output
Busbar
UPS Cabinet
AC Output
208V
4-Wire + GRD
Battery
Field-Supplied Wiring
Notes
1. Install in accordance with national and local electrical codes.
* External Overcurrent
2. A neutral is required from the system AC input source.
Protection by Others
A full-capacity neutral conductor and grounding conductors
are recommended.
3. UPS system input and output cables must be run in separate conduits.
UAM01000
4. Control wiring must be run in separate conduits.
5. Customer must supply shunt trip breaker with 120V coil.
Rev. 2
10.8
Switching the Liebert® APM™ from Parallel to Single UPS Operation
10.8.1 Procedure to Take UPS1 Offline While Leaving UPS2 Online
The procedure below is used to switch the system from parallel to single UPS operation.
NOTICE
Risk of improper switching. Can cause damage to connected load.
97
Operation
1.
2.
3.
4.
5.
6.
7.
Verify that removal of UPS1 from the system bus will NOT overload UPS2 and cause the load
to drop.
Turn OFF the inverter on UPS1 (see Figure 65).
Verify that UPS1 is now in Static Bypass Mode.
Open Battery Breaker(s) for UPS1.
Verify that the Battery Status Light on UPS1 turns Red.
Open UIB1.
Open MOB1.
Verify that UPS1 is now completely OFFLINE.
10.8.2 Procedure to Put UPS1 Back Online
1.
2.
3.
4.
5.
6.
7.
Close MOB1 (see Figure 65).
Close UIB1.
Verify that the Liebert APM UPS turns On.
Close the battery breaker for UPS1.
Verify that the battery status light on UPS1 turns Off.
Verify that UPS1 is now in Static Bypass Mode.
Turn on the Inverter on UPS1.
10.8.3 Procedure to Take UPS2 Offline While Leaving UPS1 Online
NOTICE
1.
2.
3.
4.
5.
6.
7.
Risk of improper switching. Can cause damage to connected load.
Verify that removal of UPS2 from the system bus will NOT overload UPS1 and cause the load
to drop.
Turn OFF the inverter on UPS2 (see Figure 65).
Verify that UPS2 is now in Static Bypass Mode.
Open Battery Breaker(s) for UPS2.
Verify that the Battery Status Light on UPS2 turns Red.
Open UIB2.
Open MOB2.
Verify that UPS2 is now completely OFFLINE.
10.8.4 Procedure to Put UPS2 Back Online
1.
2.
3.
4.
5.
6.
7.
Close MOB2 (see Figure 65).
Close UIB2.
Verify that the Liebert APM UPS turns On.
Close the battery breaker for UPS2.
Verify that the battery status light on UPS2 turns Off.
Verify that UPS2 is now in Static Bypass Mode.
Turn on the Inverter on UPS2.
98
Operation
Figure 65 Liebert APM six-breaker buyout paralleling configuration
UIB1
UIB2
MOB2
APM UPS 2
MOB1
APM UPS 1
UAM01080
Rev. 1
99
Operation
10.9
APM Procedure from Parallel Inverter Operation to Wrap-Around Bypass
Note: MBB is OPEN.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Turn OFF the Inverter on UPS1.
Turn OFF the Inverter on UPS2.
Verify that each UPS is now in Static Bypass Mode.
Open Battery Breaker(s) for UPS1.
Open Battery Breaker(s) for UPS2.
Verify that the Battery Status Light on UPS1 and UPS2 turns Red.
Close MBB - Bypass Breaker for System.
Open UIB1.
Open MOB1.
Verify that UPS1 is now completely OFFLINE.
Open UIB2.
Open MOB2.
Verify that UPS2 is now completely OFFLINE.
10.10 APM Procedure from Wrap-Around Bypass to Parallel Inverter Operation
Note: MBB is CLOSED.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Close UIB1 - Feed breaker to UPS1.
Close UIB2 - Feed breaker to UPS2.
Allow each UPS to qualify the Input and Bypass Feeds.
Close Battery Breaker(s) for UPS1.
Close Battery Breaker(s) for UPS2.
Close MOB1 - Output Breaker for UPS1.
Close MOB2 - Output Breaker for UPS2.
Verify that each UPS is now registering that it is in Static Bypass Mode and that the Battery
Status Light is not lit.
Open MBB.
Both UPS units should now be in static bypass mode.
Engage the Inverter on UPS1.
Engage the Inverter on UPS2.
Verify that there is a successful transfer from Static Bypass to Inverter (Normal Mode).
UPS1 and UPS2 are now both ONLINE.
10.11 Emergency Shutdown With EPO
This circuit has been designed to switch off the UPS in emergency conditions (i.e., fire, flood, etc.). The
system will turn off the rectifier, inverter and stop powering the load immediately (including the
inverter and bypass), and the battery stops charging or discharging.
If the input utility is present, the UPS’s controls will remain active; however, the output will be
turned off. To remove all power from the UPS, the external feeder breaker should be opened.
100
Operation
10.12 Auto Restart
When the main and bypass sources fail, the UPS draws power from the battery system to supply the
load until the batteries are depleted. When the UPS reaches its end of discharge (EOD) threshold, it
will shut down.
The UPS will automatically restart and enable output power:
• after utility power is restored
• if “Auto Recovery after EOD Enabling” is enabled in the UPS configuration (set by factory or by
Liebert Services)
• after the “Auto Recovery after EOD Delay Time” expires (the default delay is 10 minutes)
During the auto recovery delay, the Liebert® APM™ will be charging its batteries to provide a
safety margin for equipment shutdown if input power fails again.
If the “Auto Recovery after EOD Enabling” feature is disabled, the system must be restarted manually.
10.13 Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions
Once all appropriate measures have been taken to correct the problem indicated by the alarm
message appearing on the Operator Control Panel , carry out this procedure to restore the UPS to
regular operation following an EPO action or for the following reasons: Inverter Overtemperature,
Cut-off Overload, Battery Overvoltage, excessive switching (BYP: XFER COUNT BLOCK), etc.
When the user confirms that the fault is cleared:
1. Press the FAULT CLEAR button to let the system exit the emergency off state.
2. Press the INVERTER ON button on the right side of the Operator Control Panel for longer than
2 seconds (after the rectifier has qualified).
NOTE
The rectifier will start automatically 5 minutes after the of overtemperature fault is cleared.
After the EPO button is pressed, if the input utility is removed, the UPS will shut down completely.
When input utility is restored, the EPO condition will clear, and the UPS will enable the static bypass
and restore the output.
10.14 Battery Protection
10.14.1Battery Undervoltage Warning
Before the end of discharge, the Liebert® APM™ displays a low battery warning. After this warning,
the battery has the capacity for 5 minutes discharging with full load (default time). The Liebert APM
can be user-configured to display this warning from 3 to 60 minutes before end-of-discharge.
10.14.2Battery End-of-Discharge (EOD) Protection
If the battery voltage is lower than the end-of-discharge voltage, the battery converter will be shut
down.
10.15 Replacing Dust Filters
Installing the two dust filter sizes in a Liebert APM requires only a Phillips screwdriver. Each filter is
held in place by a bracket on either side of each filter. To replace each filter:
1. Open the UPS front door and locate the filters on the back side of the front door (see Figure 66).
2. Remove one bracket and loosen the screw on the second bracket. The second bracket need not be
removed.
3. Remove the dust filter to be replaced.
4. Insert the clean filter.
5. Reinstall the bracket, tightening the screw securely.
6. Tighten the screw on the second bracket.
101
Operation
Figure 66 Dust filter replacement
102
Specifications and Technical Data
11.0 SPECIFICATIONS AND TECHNICAL DATA
11.1
Conformity and Standards
The Liebert® APM™ has been designed to conform to the following standards:
Safety
UL 1778, CSA 22.2 107.3, 4th Edition
Surge
ANSI 62.41 Cat A3 and B3
Harmonics
IEC 61000-3-4
Electrical Fast Transient
IEC 61000-4-4 Level 4, Criteria A
ESD
IEC 61000-4-2 Level 4, Criteria A
FCC
Part 15, Class A
Radiated Immunity
Conducted Immunity
Low-Frequency Signals
Transportation
ISO
Misc
IEC 61000-4-3 Level 3, Criteria A
IEC 61000-4-6 Level 4, Criteria A
IEC 61000-2-2 Criteria A
ISTA Procedure 1H
9001
OSHA, ASME, NEMA PE-1
The Liebert APM has UL and c-UL approval.
11.2
UPS Environmental
The Liebert APM is designed to operate under the following environmental conditions without
damage or degradation in electrical operating characteristics:
Table 33
Environmental requirements
Item
Requirements
Acoustical Noise, dBA, at 55 in. (1.4m)
With Top Fan Kit
57 (45kVA); 60 (90kVA)
69 (45kVA); 70 (90kVA)
Operating Altitude
3300 ft. (1000m) above sea level; derate power by 1% per 330 ft.
(100m) between 3300 and 6000 ft. (1000m and 2000m)
Relative Humidity
0 to 95% non condensing
Operating Temperature, °F (°C)
32 to 104 (0 to 40)*
Battery life is halved for every 18°F (10°C) increase above 68 (20)
UPS Storage/Transport Temperature, °F (°C)
-4 to 158 (-20 to 70)
Recommended Battery Storage
Temperature, °F (°C)
-4 to 86 (-20 to 30)
68 (20) for optimum battery storage
Table 34
UPS mechanical characteristics
15 - 90
Rated Power, kVA
Dimensions, W x D x H, in (mm)
31-1/2 x 39-1/2 x 78-3/4 (800 x 1000 x 2000)
Weight, without batteries, lb (kg)
1100 (500)
Color
Black
Protection Degree IEC (60529)
IP20 (finger-proof with front doors open or closed)
103
Specifications and Technical Data
Table 35
45kVA Liebert BDC mechanical characteristics
15-90
Rated Power, kVA
23-5/8 x 39-1/2 x 78-3/4
(600 x 1000 x 2000)
Dimensions, W x D x H, in (mm)
Weight, lb (kg)
No Distribution
525 (239)
225A Panelboard
625 (284)
No Distribution & 480V Transformer
1110 (505)
No Distribution & 600V Transformer
1125 (511)
225A Panelboard & 480V Transformer
1210 (550)
225A Panelboard & 600V Transformer
1225 (557)
Black
Color
IP20 (finger-proof with front doors open or closed)
Protection Degree IEC (60529)
Table 36
90kVA Liebert BDC mechanical characteristics
15-90
Rated Power, kVA
23-5/8 x 39-1/2 x 78-3/4
(600 x 1000 x 2000)
Dimensions, W x D x H, in (mm)
Weight, lb (kg)
No Distribution
550 (250)
Two 225A Subfeed Breakers
660 (300)
400A Panelboard
660 (300)
No Distribution & 480V Transformer
1522 (692)
No Distribution & 600V Transformer
1507 (685)
Two 225A Subfeed Breakers & 480V Transformer
1632 (742)
Two 225A Subfeed Breakers & 600V Transformer
1617 (735)
400A Panelboard & 480V Transformer
1632 (742)
400A Panelboard & 600V Transformer
1617 (735)
Black
Color
IP20 (finger-proof with front doors open or closed)
Protection Degree IEC (60529)
Table 37
600mm battery cabinet mechanical characteristics
15 - 90
Rated Power, kVA
Dimensions, W x D x H, in (mm)
23-5/8 x 39-1/2 x 78-3/4
(600 x 1000 x 2000)
Weight, lb (kg)
with HX150 batteries
1554 (705)
with HX205 batteries
1693 (768)
with HX300 batteries
2101 (953)
with HX330 batteries
2366 (1073)
Black
Color
Protection Degree IEC (60529)
IP20 (finger-proof with front doors open or closed)
104
Specifications and Technical Data
Table 38
900mm battery cabinet mechanical characteristics
15 - 90
Rated Power, kVA
Dimensions, W x D x H, in (mm)
35-1/2 x 39-1/2 x 78-3/4
(900 x 1000 x 2000)
Weight, lb (kg)
with HX400 batteries
2693 (1224)
with HX505 batteries
3245 (1475)
with HX540 batteries
3345 (1520)
Black
Color
Protection Degree IEC (60529)
11.3
IP20 (finger-proof with front doors open or closed)
Batteries Approved for Use in Liebert® APM™ Systems
Table 39
Batteries approved for use in External Battery Cabinet, 600mm
Supplier
Part Number
Enersys
12HX150-FR
Enersys
12HX205-FR
Enersys
12HX300-FR
Enersys
12HX330-FR
Enersys
12HX400-FR
Enersys
12HX505-FR
Enersys
12HX540-FR
Table 40
Supplier
Enersys
Internal batteries approved for use with 45kVA frame Liebert APM
Part Number
12HX100-FR
12HX150-FR
105
Specifications and Technical Data
11.4
UPS Electrical Characteristics
Refer to additional circuit breaker notes in 3.2.7 - Accessory Fuses and Backfeed Breaker
Wiring.
NOTE
The breakers and cables used must be in accordance with NEC ANSI/NFPA 70. A disconnect
breaker must be provided for AC input, DC input and AC output. Recommended cable sizes are
suitable for operation at a maximum temperature of 86°F (30°C). For continuous operation at
temperatures above 86°F (30°C), the site design should include cables that meet requirements
for 104°F (40°C) installations.
Table 41
UPS currents and terminals—Input (for single-input unit, 208V operation)
Maximum Recommended Lug (T&B)
Unit
Rating
Nominal
Input
Current
15
44
55
70
M10 (3/8")
30
89
111
150
M10 (3/8")
45
133
166
200
M10 (3/8")
60
177
221
300
75
221
276
90
266
332
Table 42
Maximum
Input
Current
OCP
Device
Rating
Wire
Compression
Lug Two Hole
3/8" Bolt
Mechanical
Lug Two Hole
3/8" Bolt
130
(1) #1
54857BE
32209
150
(1) 1/0
54860BE
32209
200
(1) 3/0
54864BE
32211
M10 (3/8")
300
(2) 1/0
54860BE
32209
350
M10 (3/8")
350
(2) 2/0
54862BE
32209
400
M10 (3/8")
460
(2) 4/0
54866BE
32211
Bolt Size
75°C Wire
Current, tot
UPS currents and terminals—Input (for dual-input unit only, 208V operation)
Maximum Recommended Lug (T&B)
Wire
Compression
Lug Two Hole
3/8" Bolt
Mechanical
Lug Two Hole
3/8" Bolt
130
(1) #1
54857BE
32209
M10 (3/8")
150
(1) 1/0
54860BE
32209
M10 (3/8")
200
(1) 3/0
54864BE
32211
300
M10 (3/8")
300
(2) 1/0
54860BE
32209
276
350
M10 (3/8")
350
(2) 2/0
54862BE
32209
332
400
M10 (3/8")
460
(2) 4/0
54866BE
32211
Unit
Rating
Nominal
Input
Current
Maximum
Input
Current
OCP
Device
Rating
15
44
55
30
89
45
133
60
Bolt Size
75°C Wire
Current, tot
70
M10 (3/8")
111
150
166
200
177
221
75
221
90
266
Table 43
UPS currents and terminals—Bypass input (for dual-input units, 208V operation)
Maximum Recommended Lug (T&B)
Unit
Rating
Nominal
Input
Current
15
30
Compression
Lug Two Hole
3/8" Bolt
Mechanical
Lug Two Hole
3/8" Bolt
OCP Device
Rating
Bolt Size
75°C Wire
Current, tot
42
70
M10 (3/8")
130
(1) #1
54857BE
32209
83
125
M10 (3/8")
150
(1) 1/0
54860BE
32209
45
125
200
M10 (3/8")
175
(1) 2/0
54862BE
32209
60
167
250
M10 (3/8")
230
(1) 4/0
54866BE
32211
75
208
350
M10 (3/8")
300
(2) 1/0
54860BE
32209
90
250
400
M10 (3/8")
350
(2) 2/0
54862BE
32209
106
Wire
Specifications and Technical Data
Table 44
UPS currents and terminals—Output 208V
Maximum Recommended Lug (T&B)
Unit
Rating
Nominal
Output
Current
OCP Device
Rating
75°C Wire
Current, tot
Bolt Size
Wire
Compression
Lug Two Hole
3/8" Bolt
Mechanical
Lug Two Hole
3/8" Bolt
15
42
70
M10 (3/8")
130
(1) #1
54857BE
32209
30
83
150
M10 (3/8")
150
(1) 1/0
54860BE
32209
45
125
200
M10 (3/8")
175
(1) 2/0
54862BE
32209
60
167
300
M10 (3/8")
230
(1) 4/0
54866BE
32211
75
208
350
M10 (3/8")
300
(2) 1/0
54860BE
32209
90
250
400
M10 (3/8")
350
(2) 2/0
54862BE
32209
Table 45
UPS currents and terminals—Battery (288V string)
Maximum Recommended Lug (T&B)
Unit
Rating
Battery
Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, tot
Wire
Compression
Lug Two Hole
3/8" Bolt
Mechanical
Lug Two Hole
3/8" Bolt
15
67
80
M10 (3/8")
130
(1) #1
54857BE
32209
30
135
150
M10 (3/8")
175
(1) 2/0
54862BE
32209
45
202
225
M10 (3/8")
230
(1) 4/0
54866BE
32211
60
269
300
M10 (3/8")
300
(2) 1/0
54860BE
32209
75
336
350
M10 (3/8")
400
(2) 3/0
54864BE
32211
90
404
450
M10 (3/8")
460
(2) 4/0
54866BE
32211
Table 46
AC/AC efficiency, loss and air exchange
AC/AC Efficiency
Data
Normal mode (dual conversion), %
94 maximum
Inverter Efficiency (DC/AC) (battery at nominal voltage 288VDC and full-rated linear load)
Rated Power, kVA
15-90
Battery Mode, %
94
Heat Losses & Air Exchange
Rated Power, kVA
15
30
45
60
Normal Mode, kW
0.9
1.8
2.7
3.6
No Load, kW
0.3
0.6
0.9
1.2
Maximum forced air cooling
102 (173)
204 (346)
306 (519)
408 (692)
(front intake, rear exhaust), L/sec (m3/hr)
Heat Dissipation, BTU/Hr (kWH)
Without Transformer
3074 (0.9) 6147 (1.8) 9220 (2.7) 12295 (3.6)
20074
With Transformer, 480V
13928 (4)
17001 (5)
23149 (6.8)
(5.9)
16772
19845
With Transformer, 600V
13726 (4)
22920 (6.7)
(4.9)
(5.8)
3
Top Fan Maximum Forced Air Cooling: 467 L/sec (1680 m /hr) total for 2 fans
107
75
4.5
1.5
90
5.4
1.8
510 (865)
612 (1038)
15368 (4.5)
18442 (5.4)
26222 (7.8)
29296 (8.6)
25993 (7.6)
29067 (8.5)
Specifications and Technical Data
Table 47
Rectifier input
Parameter
15-90kVA
Rated AC Input Voltage 3
208/120V or 220/127V, 60Hz, 3-Phase, 4-Wire Plus Ground
Input Voltage Range, Startup/Operating
Input Voltage Range, Operating
Frequency
Power Factor
96-138V or 102-146V or -20%, +15% (Full Load)
72-138V or 76-146V or -40%, +15% (<80% Load)
50 or 60Hz (40-70Hz Range)
0.99 Full Load, 0.98 Half Load
Input Current, Rated 1
45/90/135/180/225/270 A
Input Current, Max 2
60/120/180/240/300/360 A
THD
3% THDI Full Load
1. At rated load and 208V input with battery charged (EN 62040-3 / 50091-3).
2. At rated load and 208V input with battery charging at maximum power (EN 62040-3 / 50091-3).
3. Three-phase, four-wire and shared neutral with the bypass input.
Table 48
Battery DC intermediate circuit
15 - 90kVA
Parameter
Battery Bus Voltage
Nominal: 288VDC (VRLA Float charge is 324V) 24 jars of 12V VRLA
Number of Lead-Acid Cells
144 = [24 x 6 cell (12V) blocks], nominal
Float Voltage
Temperature Compensation
Ripple Voltage
Ripple Current, ~ C10
Boost Charge
Voltage
Boost Control
End of Discharge
Battery Charge
Battery Charging Power1
Max Current (Adjustable)2
2.25V/cell, selectable from 2.2 - 2.3V/cell
Constant current and constant voltage charge mode
-3.0mV/°C, selectable from 0 to -5.0mV/°C around 77°F (25°C) or 86°F (30°C) or inhibit
≤1%
≤5%
2.35 V/cell (selectable from 2.30-2.40V/cell)
Constant current and constant voltage charge mode
• Float-boost current trigger 0.050 C10 (selectable 0.030-0.070)
• Boost-float current trigger 0.010 C10 (selectable 0.005-0.025)
24 hr safety time-out (selectable 8-30 hr)
Boost charge mode inhibit also selectable
1.63 V/cell (selectable from 1.60-1.750V/cell)
Auto Inverse EOD voltage x discharge current mode
(The end of discharge voltage increases at low discharge currents)
2.4 V/cell (selectable from 2.3-2.4V/cell)
Constant current and constant voltage charge mode
Programmable auto trigger or inhibit of boost mode
UPS (kVA)
15
30
45
60
75
90
Battery Charging Power (kW)
Max Charging Current (A)
2.25
11
4.5
22
6.75
33
9
44
11.25
55
1. At low input voltage, the UPS recharge capability increases with load decrease (up to the maximum capacity indicated).
2. Maximum currents listed are for end of discharge voltage of 1.67 V/cell for 144 cells.
108
13.25
66
Specifications and Technical Data
Table 49
Inverter output to critical load
Parameter
15 - 90kVA
Rated AC Voltage
Frequency
1
208/120, 220/127VAC, 60Hz, 3-phase, 3- or 4-wire plus ground
2
60Hz
110% load, 60 min
125% load, 10 min
150% load, 60 sec
Overload Capacity
Fault Current
Non-Linear Load Capability
Short circuit for 200 ms
3
100%
Neutral Current Capability
170%
Steady State Voltage Stability
±1% (balanced load)
Voltage Regulation
±1% for balanced load
±5% for 100% unbalanced load
Phase Balance
120° ±1° for balanced load
120° ±15°± for 100 unbalanced load
Transient Voltage Response 4
±5%
THD
< 1% (linear load), <4% (non linear load 3)
Sync Frequency Range
Rated frequency ± 2Hz (selectable ± 0.5 to ± 3Hz)
Frequency Slew Rate
0.2 to 3Hz/sec
Frequency Regulation
±0.1% (single Liebert FlexPower Assembly)
±0.25% (six Liebert FlexPower Assemblies)
Voltage Adjustment Range
±5%
1.
2.
3.
4.
Factory set to 208V or 220V selectable by commissioning engineer.
Factory set to 60Hz; 50Hz selectable by commissioning engineer. Frequency converter operation also selectable.
EN50091-3 (1.4.58) crest factor: 3:1
IEC62040-3/ EN 50091-3 also for 0-100-0% load transient. Transient recovery time: return to within 5% of steady state output voltage
within half a cycle.
5. Three-phase, 4 wire and shared neutral with the bypass input.
Table 50
Bypass input
Parameter
15 - 90kVA
Rated AC Voltage 1 2
208/220V 3-phase
Rated current
208V
220V
252A
240A
Overload
135% load, long term
Upstream protection, bypass line
Thermomagnetic circuit-breaker, rated up to 125% of nominal output
current. IEC 60947-2 curve C.
Current rating of neutral cable, A
1.7×In
Frequency, Hz
60
Transfer time between Bypass and Inverter, ms
Synchronous transfer: 0ms
Asynchronous transfer (default): 15 ms (50 Hz), 13.3 ms (60 Hz)
or 40, 60, 80, 100 ms selectable
Bypass voltage tolerance,%VAC
Upper limit: +10, +15 or +20, default +15
Lower limit: -10, -20, -30 or -40; default: -20 (delay time to accept steady
bypass voltage: 10 sec)
Bypass frequency tolerance,%
±10 or ±20; default ±10
Synchronization - Window
Rated frequency ± 2Hz (selectable ± 0.5 to ± 3Hz)
1. Factory-set to 208 or 220V selectable by commissioning engineer.
2. Three-phase, 4 wire and shared neutral with the rectifier input. Neutral referenced to the output.
109
Specifications and Technical Data
Figure 67 Battery, circuit breaker and UPS wiring with external batteries with four connecting wires
+
N
N
UPS
+
N
−
−
Figure 68 Battery, circuit breaker and UPS wiring with external batteries with three connecting wires
+
N
N
−
−
110
UPS
+
Maintenance
12.0 MAINTENANCE
12.1
Safety Precautions
Observe the safety precautions in Important Safety Instructions on page 1.
Only properly trained and qualified personnel should perform maintenance on the UPS system.
Observe all of the warnings and cautions below before performing any maintenance on the UPS
system and associated equipment. Also observe the manufacturer's safety precautions pertaining to
the battery, along with the battery safety precautions in this section.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Only Liebert® or Liebert-trained service personnel should work on this equipment. Both AC
and DC high voltages are present in lethal amounts within this equipment. Extreme care
should be taken when working around UPS equipment.
Always identify the source of connecting wiring prior to disconnecting. Mark any disconnected
wires, so they can be properly reconnected.
Do not substitute parts except as authorized by Liebert Corporation.
Maintain the UPS cabinets free of foreign materials such as solder, wire cuttings, etc.
Call Liebert Services if you are not sure of the procedures to follow or if you are not familiar
with the design or operation of the equipment.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Extreme caution is required when performing maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages. With
input power off and the battery disconnected, high voltage at filter capacitors and power
circuits should be discharged within 30 seconds. However, if a power circuit failure has
occurred, you should assume that high voltage may still exist after shutdown. Check with a
voltmeter before making contact.
AC voltage will remain on the bypass and output contactors and the static bypass switch,
unless associated external circuit breakers are opened.
Check for voltage with both AC and DC voltmeters prior to making contact.
When the UPS system is under power, both the operator and any test equipment must be
isolated from direct contact with earth ground and the UPS chassis frame by using rubber
mats.
Some components within the cabinets are not connected to chassis ground.
Any contact between floating circuits and the chassis is a lethal shock hazard. use differential
oscilloscopes when measuring a floating circuit. The differential input should have at least
800 vrms common mode input rating and a common mode rejection ratio of at least 8odb.
Exercise caution that the test instrument exterior does not make contact either physically or
electrically with earth ground.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers, or
others approved for use in electrical fire fighting.
111
Maintenance
12.2
Routine Maintenance
Become thoroughly familiar with the equipment, but at no time go beyond the specific procedures in
this manual while performing maintenance or correcting a malfunction. If you have any doubt as to
what must be done, call Emerson® Network Power Liebert® Services at 1-800-LIEBERT for further
instructions. The UPS is designed for unattended operation, but does require some common sense
maintenance.
• Keep good records—Troubleshooting is easier if you maintain historical service records.
• Keep the UPS free of dust and any moisture.
• Keep the UPS cool:
• Battery systems must be kept in the range of 72-77°F (22-25°C) in order to meet design specifications for capacity and longevity.
• The UPS will reliably meet all performance specifications at temperatures up to 104°F (40°C),
and can be slightly derated for operation at even higher temperatures. However, performance
and longevity will be optimized when the UPS is operated at the same temperature as the
batteries.
• Keep connections tight.
• Tighten all connections at installation and at least annually thereafter. (See 12.2.5 - Torque
Requirements).
12.2.1 Record Log
Set up a maintenance log to record scheduled checks and any abnormal conditions.
The log should have space for all metered data including phase readings, alarm messages, UPS mode
of operation, air filter replacement date, and observation notes. A second log should be maintained for
the battery module as directed by the battery manufacturer.
A periodic walk-through inspection of the UPS and battery rooms is advised to check for visible and
audible indications of problems. Log the inspection, metered parameter indications, and any
discrepancies.
12.2.2 Air Filters
The air filters must be inspected and serviced on a regular schedule. The period between inspections
will depend upon environmental conditions. Under normal conditions, the air filters will require
cleaning or replacement approximately every two months.
All Liebert APM models have replaceable filter elements behind the grille in the front of the unit.
This element can be changed with the UPS operating, by opening the outer door for access.
Abnormal or dusty conditions will require more frequent cleaning and replacement of air filters.
Inspect installations in new buildings more often, then extend the inspection period as experience
dictates.
12.2.3 Battery Maintenance
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
These maintenance procedures will expose hazardous live parts. Refer servicing to qualified
personnel.
112
Maintenance
12.2.4 Battery Safety Precautions
Servicing of batteries should be performed or supervised by personnel experienced with 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 property
damage, injury and deth.
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 should 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 poisonous.
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 if battery is inadvertently grounded. If inadvertently 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. (See battery manufacturer’s web site.)
Valve-regulated lead-acid batteries do require periodic maintenance. Although they do not require
maintenance of electrolyte levels, visual inspections and checks of battery voltage and connection
resistance should be made.
NOTICE
Do not use cleaners on the batteries. Solvents can make the battery cases brittle. Use only a
dry cloth or a cloth moistened in water
Since 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 temporarily increases
charging voltage to maintain flooded type battery cells at full capacity.
113
Maintenance
! 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 batteries, such as those used in
Liebert battery cabinets. Refer to the battery manufacturer’s manual, available on the
manufacturer’s Web site, for specific information about equalize charging.
Table 51
Battery voltage record
Float Voltage
(Volts DC)
Date
Nominal Voltage
(Volts DC)
Ambient Temp. (°F)
* To be completed by Liebert Global Services customer engineer at time of start-up.
12.2.5 Torque Requirements
All electrical connections must be tight.
Tables 52 through 54 provide the torque values for the connections in the UPS and batteries. Use
these values unless the equipment is labeled otherwise.
Table 52
Circuit breakers with compression lugs (for power wiring)
Current Rating
Lb-in
N-m
400 - 1200 Amps
300
34
Table 53
Terminal block with compression lugs (for control wiring)
AWG Wire Size
or Range
Lb-in
N-m
#22 - #14
3.5 to 5.3
0.4 to 0.6
Table 54
Battery retorque values
Battery Mfr.
Enersys
Battery Model #
Retorque Value
12HX100-FR
12HX150FR
12HX205-FR
12HX300-FR
12HX330-FR
12HX400-FR
12HX505-FR
12HX540-FR
40 in-lb (4.5N-m)
40 in-lb (4.5N-m
58 in-lb (6.5N-m)
58 in-lb (6.5N-m)
58 in-lb (6.5N-m)
58 in-lb (6.5N-m)
58 in-lb (6.5N-m)
58 in-lb (6.5N-m)
114
Maintenance
12.3
Detecting Trouble
It is important that the operator check the instrument readings if abnormal equipment performance
is suspected. Any metered value that differs appreciably from normal could mean an impending
malfunction, and should be investigated.
Items to check on the various UPS display screens include:
1. Output voltage of all phases should be within 2% of normal voltage. Output currents on each
phase should not normally differ by more than 20%. If a greater difference is noted, the load is
unbalanced and corrective action should be taken to redistribute the load, if possible.
2. If the UPS has not operated on battery power during the last 10 hours, the batteries should
require little charging current. Battery mimic should indicate normal DC voltage with relatively
little battery charge current.
3. Input current on each phase should be within 10% of the average input current. Alarm messages
indicate malfunction or impending malfunction. A daily check of the Operator Control Panel will
help to provide an early detection of problems. Refer to Appendix B - UPS Status Messages to
interpret alarm messages.
4. Tracing a problem to a particular section is facilitated by alarm messages and the metered
parameter indications. These are stored in the Status Reports and can be displayed at the
Operator Control Panel or at an optional terminal.
NOTE
If the UPS system has a blown fuse, the cause should be determined before you replace the fuse.
Contact Liebert Global Services.
12.4
Reporting a Problem
If a problem occurs within the UPS, review all alarm messages along with other pertinent data. This
information should be given via telephone to the Liebert Service dispatcher. This information can also
be automatically sent by telephone modem. Call 1-800-LIEBERT to report a problem or to request
assistance.
12.5
Corrective Actions
For each alarm message on the Operator Control Panel and the Remote Alarm Status Panel, you can
find the recommended corrective action in Appendix B - UPS Status Messages.
12.6
Recommended Test Equipment
A list of recommended test equipment and tools required to maintain, troubleshoot, and repair the
UPS module is given in Table 55. You may substitute instruments of equivalent range and accuracy.
All instruments should be calibrated and be within the current calibration cycle. Calibration data for
the instruments should be maintained in equipment-history files and the instruments labeled for
audit and verification.
Table 55
Qty
Recommended test equipment and tools
Test Equipment
Manufacturer
Model or Type
1
Oscilloscope
Tektronix, H-P or Fluke
DC to 50 MHz
2
Voltage Probes
Tektronix, H-P or Fluke
10X, with 10 ft. Cable
2
Voltage Probes
Tektronix, H-P or Fluke
100X, with 10 ft. Cable
1
Digital Multi-meter
Fluke
8060, with Test Leads
1
Tool Kit
N/A
Standard electrical contractor tools
115
Maintenance
APPENDIX A HAZARDOUS SUBSTANCES OR ELEMENTS ANNOUNCEMENT
Table 56
Hazardous substances or elements
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Chrome
(Cr6+)
Polybrominated
Biphenyl
(PBB)
Polybrominated
Diphenyl Ethers
(PBDE)
Hex copper stud
X
✔
✔
✔
✔
✔
PCBA
X
✔
✔
✔
✔
✔
AC capacitor
X
✔
✔
✔
✔
✔
DC capacitor
X
✔
✔
✔
✔
✔
Fan
X
✔
✔
✔
✔
✔
Cables
X
✔
✔
✔
✔
✔
LCD
X
X
✔
✔
✔
✔
Sensors
X
✔
✔
✔
✔
✔
Large-medium
power magnetic
components
X
✔
✔
✔
✔
✔
Circuit breaker /
rotating switch
X
✔
✔
✔
✔
✔
Semiconductors
X
✔
✔
✔
✔
✔
Battery (when
applicable)
X
✔
✔
✔
✔
✔
Insulation
monitoring device
(when applicable)
X
✔
✔
✔
✔
X
Part Name
? = Means the content of the hazardous substances in all the average quality materials of the part is within the limits specified in
SJ/T-11363-2006
X = Means the content of the hazardous substances in at least one of the average quality materials of the part is outside the limits
specified in SJ/T11363-2006
Emerson Network Power Co., Ltd. has been committed to the design and manufacturing of environment-friendly products. It will
reduce and eventually eliminate the hazardous substances in the products through unremitting efforts in research. However,
limited by the current technical level, the following parts still contain hazardous substances due to the lack of reliable substitute or
mature solution:
1. All solders in the products contain lead.
2. Copper alloy contains lead.
3. Backlight bulb contains mercury.
4. The ceramic materials of the ceramic capacitor, the copper terminals and copper leads of metallic film capacity contain lead.
5. The glass of resistor contains lead.
6. The glass of LCD contains lead, and the backlight lamp contains mercury.
7. The lead in the battery is determined by the battery feature and technical levels.
8. The insulation monitoring device contains lead and PBDE.
About Environment Protection Period: The Environment Protection Period of the product is marked on the product. Under normal
working conditions and normal use of the products observing relevant safety precautions, the hazardous substances in the
product will not seriously affect the environment, human safety or property in the Environment Protection Period starting from the
manufacturing date.
About battery: The battery life is dependent on the ambient temperature and charging / discharging times. The battery life will be
shortened if the battery is used under high temperature or in deep discharging status. Refer to the manufacturer’s product
literature for details.
Applicable scope: Liebert APM 90kVA UPS
116
Maintenance
APPENDIX B UPS STATUS MESSAGES
Table 57 shows all event messages as they appear in the current status area of the LCD or the
history log, along with a description and recommended actions, if any. For further information on the
current status area and the history log, see 9.10 - UPS History Log.
Table 57
UPS status messages
Event Message
Description / Suggested Action (if any)
Comm. Fail
The CAN communication between internal monitor and rectifier/inverter/bypass fails. Contact
Liebert Services at 800-543-2378 for assistance.
Battery Overtemp.
The Battery temperature is over limit. Check the battery temperature and ventilation.
Ambient Overtemp.
The Ambient temperature is over limit. Check the ventilation of UPS room.
Replace Battery
Battery should be replaced. Contact Liebert Services at 800-543-2378 for assistance.
Battery Low Pre-warning
Before the end of discharging, battery under-voltage pre-warning should occur. After this prewarning, battery should have the capacity for 3 minutes discharging with full load. The time is
user configured from 3 to 60 minutes.
Shut down the load in time.
Battery End of Discharge
Inverter turned off due to low battery voltage.
Check the utility failure and try to fix it.
Mains Volt. Abnormal
Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown.
Check the input line-to-neutral voltage amplitude of rectifier.
Mains Undervoltage
Mains Voltage is undervoltage (120v~132V).
Check the input line-to-line voltage amplitude of rectifier.
Mains Freq. Abnormal
Mains frequency is out of limit range and results in rectifier shutdown.
Check the rectifier’s input voltage frequency.
Rectifier Fault
Rectifier Fault; Contact Liebert Services at 800-543-2378 for assistance.
Rectifier Overtemp.
The temperature of heat sink is too high to keep the rectifier running.
The UPS can recover automatically. Check the environment and ventilation.
Charger Fault
The Charger has failed. Contact Liebert Services at 800-543-2378 for assistance.
Input Fuse Fail
Input fuse is open. Contact Liebert Services at 800-543-2378 for assistance.
Control Power 1 Fail
Control Power 1 has failed or has been lost. Contact Liebert Services at 800-543-2378 for
assistance.
Mains Phase Reversed
Input phase sequence is reversed. Contact Liebert Services at 800-543-2378 for assistance.
Soft Start Fail
Rectifier could not start due to low DC bus voltage. Contact Liebert Services at 800-543-2378 for
assistance.
Bypass Unable to Trace
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage is beyond the normal range.
The amplitude threshold is fixed for positive and negative 10% rating.
This alarm automatically resets once the bypass voltage goes normal.
1. First verify that the bypass voltage and frequency displayed on the panel is within the selected
range. Note here the rated voltage and frequency are specified by “Output voltage level” and
“Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external supply if it is found to be faulty.
Contact Liebert Services at 800-543-2378 for assistance.
Bypass Abnormal
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage exceeds the limit.
This alarm automatically resets once the bypass voltage goes normal.
First check if there are some relevant alarms such as “Bypass disconnect open”, “Bypass phase
reverse” and “Mains neutral lost”. If they appear, solve them first.
1. Then verify that the bypass voltage and frequency displayed on the panel is within the bypass
limit. Note here the rated voltage and frequency are specified by “Output voltage level” and
“Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external bypass supply if it is found to be faulty. If
the utility is likely to trigger this alarm frequently, the bypass limit can be changed a little larger
through the configuration software according to the customer’s agreement.
Contact Liebert Services at 800-543-2378 for assistance.
117
Maintenance
Table 57
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
Inverter Asynchronous
This alarm is triggered by an inverter software routine when the inverter and bypass waveforms
are misaligned by more than 6 degrees in phase. This alarm resets automatically once the
condition is no longer true.
1. First check if the alarm “Bypass unable to trace” or “Bypass abnormal” occurs. If so, solve it
first.
2. Verify the waveform of the bypass voltage. If it is too distorted, ask the customer to verify and
seek any possible measurements.
Contact Liebert Services at 800-543-2378 for assistance.
Inverter Fault
This alarm indicates a fault condition exists within the inverter.
Contact Liebert Services at 800-543-2378 for assistance.
Fan Fault
At least one of the cooling fans failed. Contact Liebert Services at 800-543-2378 for assistance.
Inverter STS (relay) Fail
At least one of the static switches of inverter side is open or short circuit. This fault is locked until
power off. Contact Liebert Services for assistance at 800-543-2378 for assistance.
Bypass STS Fail
At least one of the static switches of bypass side is open or short circuit. This fault is locked until
power off.
Contact Liebert Services at 800-543-2378 for assistance.
Output Fuse Fail
At least one of the output fuses is open. Contact Liebert Services at 800-543-2378 for assistance.
Control Power 2 Fail
Control Power 2 is abnormal or lost. Contact Liebert Services at 800-543-2378 for assistance.
Unit Overload
The UPS is confirmed to be overload when the load arises above 105% nominal rating.
The alarm automatically resets once the overload condition is removed.
1. Confirm that the alarm is true by checking the load percent indicated on the LCD panel to
determine which phase is being overloaded.
2. If the alarm is true, measure the actual output current to verify that the indications are valid.
Disconnect unnecessary load and ensure the safety. In a parallel system, a severe load
sharing error can also leads to the alarm.
Contact Liebert Services at 800-543-2378 for assistance.
System Overload
The UPS parallel system is confirmed to overload when the total load arises above 105% nominal
rating for the set basic number of UPSs. The alarm automatically resets once the overload
condition is removed.
1. Confirm that the alarm is true by checking the system load percent indicated on the LCD
panel to determine which phase is being overloaded.
2. If the alarm is true, measure the actual output current to verify that the indications are valid.
Disconnect unnecessary load and ensure the safety. In a parallel system, a severe load
sharing error can also leads to the alarm.
Unit Overload Timeout
The UPS is confirmed to overload and the overload times out.
Note 1: The highest loaded phase will indicate overload timing-out first.
Note 2: When the timer is active, then alarm “unit overload” should also be active as the load is
above nominal.
Note 3: When the timer has expired, the inverter Static Switch is opened and the load transferred
to bypass. The inverter shutdown and will restart after 10 seconds.
Note 4: If the load decreases lower than 95% after 5 minutes, the system will transfer back to
inverter mode.
Confirm that the alarm is genuine by checking the load percent indicated on the LCD. If an
overload is indicated then check the load, and investigate any additional load connected prior to
the alarm (if applicable).
Bypass Phase Reversed
The phase sequence direction of bypass voltage is reversed.
Normally, the phase of Phase B lags 120 degrees behind Phase A, and the phase of Phase C
lags 120 degrees behind Phase B.
Verify that the phase rotation of the bypass supply presented to the UPS is correct, and rectify it if
it is found to be in error. Contact Liebert Services at 800-543-2378 for assistance.
Load Impact Transfer
A transfer to bypass occurred due to a large step load. The UPS should recover automatically.
Turn on connected equipment in sequential order to reduce the step loading of the inverter.
Transfer Timeout
The load is on bypass power due to excessive number of transfers that occurred within the last
hour.
The UPS will recover automatically and will transfer the load back to inverter power within an
hour.
Load Sharing Fault
UPS working within a parallel system are not sharing load current correctly. Contact Liebert
Services at 800-543-2378 for assistance.
118
Maintenance
Table 57
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
DC Bus Abnormal
Shut off inverter due to abnormal DC bus voltage.
Contact Liebert Services at 800-543-2378 for assistance.
System Transfer
The whole paralleled UPS system transferred to bypass at the same time. This message will
appear on the UPS which passive transfer to bypass.
DC Bus Overvoltage
Rectifier, inverter and battery converter were shutdown because DC bus voltage is too high.
Check whether there is a fault in rectifier side. If no, then check whether overload occurs.
Restart the inverter after resetting the fault. If fault does not clear, contact Liebert Services at 800543-2378 for assistance.
LBS Active
The LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus
configuration.
Battery ground fault
Battery ground fault from dry contact signal. Contact Liebert Services at 800-543-2378 for
assistance.
Inverter turned On
manually
Manual Turn On via front panel
Inverter turned Off
manually
Manual Turn Off via front panel
EPO
Emergency Power Off
Transfer Confirm
Interrupted Transfer Confirm
Transfer Cancel
Interrupted Transfer is cancel
Unit Off Confirm
Unit Turned Off Confirm
System Off Confirm
System Turned Off Confirm
Fault Reset
Fault Reset
Alarm Silence
Alarm Silence
Turn On Fail
Turn On Fail
Alarm Reset
Audible Alarm Reset
Bypass Mode
UPS in Bypass Mode
Normal Mode
UPS in Normal Mode
Battery Mode
UPS in Battery Mode
Output Disabled
UPS Output Disabled
Maint. Disconnect Closed
Maintenance Disconnect Closed
Reserved
Output Disconnect Open
Output Disconnect Open
Battery Reverse
Connect the battery again and check the wiring of batteries.
No Battery
Check the battery and the wiring of batteries.
Auto start
After UPS was shutdown at EOD, inverter auto starts when utility is restored.
BCB closed
BCB closed from dry contact signal.
BCB open
BCB open from dry contact signal.
Battery Float Charging
Battery is float charging.
Battery Boost Charging
Battery is boost charging.
Battery Discharging
Battery is discharging.
Battery Period Testing
Battery is period self-testing.
Batt. Capacity Testing
Battery is capacity self-testing.
Batt. Maint. Testing
Battery is maintenance self-testing.
Inverter in Setting
Inverter is in parameter setting.
Rectifier in Setting
Rectifier is in parameter setting.
Batt. Converter Fault
Battery converter output voltage beyond limits or battery fuse failed. Battery converter shuts
down. Battery backup not available.
Operation Invalid
This record is registered following an incorrect operation.
119
Maintenance
Table 57
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
Byp. Abnormal Shutdown
Both bypass and inverter voltages unavailable. Load interruption.
Mains Neutral Lost
AC Input mains reference neutral not detected.
Battery Room Alarm
Environment in battery room needs attention.
Rec Flash Update
Rectifier firmware is being updated.
Inv Flash Update
Inverter firmware is being updated.
Monitor Flash Update
Monitor firmware is being updated.
LBS abnormal
LBS is abnormal.
120
Ensuring The High Availability
Of Mission-Critical Data And Applications.
Emerson Network Power, a business of Emerson (NYSE:EMR),
is the global leader in enabling Business-Critical Continuity™
from grid to chip for telecommunication networks, data centers,
health care and industrial facilities. Emerson Network Power
provides innovative solutions and expertise in areas including
AC and DC power and precision cooling systems, embedded
computing and power, integrated racks and enclosures,
power switching and controls, infrastructure management,
and connectivity. All solutions are supported globally by local
Emerson Network Power service technicians. Liebert AC power,
precision cooling and monitoring products and services
from Emerson Network Power deliver Efficiency Without
Compromise™ by helping customers optimize their data center
infrastructure to reduce costs and deliver high availability.
Technical Support / Service
Web Site
www.liebert.com
Monitoring
liebert.monitoring@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Single-Phase UPS & Server Cabinets
liebert.upstech@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Three-Phase UPS & Power Systems
800-543-2378
Outside North America: 614-841-6598
Environmental Systems
800-543-2778
Outside the United States: 614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
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Philippines
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Fax: +63 2 730 9572
While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2011 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks
or registered trademarks of their respective owners.
SL-25615_REV7_05-12
Emerson Network Power.
The global leader in enabling Business-Critical Continuity™
AC Power
Connectivity
Embedded Computing
Embedded Power
DC Power
Infrastructure Management & Monitoring
Outside Plant
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Precision Cooling
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Services
Surge Protection
Emerson, Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks of Emerson Electric Co. or one of its affiliated companies.
©2011 Emerson Electric Co.
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