Liebert 1000kVA - page 65

Operation

59

Values for Calculated Total Time and Calculated Time Remaining will appear on the screen approxi-

mately two minutes after the beginning of the discharge event. Calculated Time Remaining also

appears on the Present Status Report screen. Both Calculated Total Time and Calculated Time

Remaining will be updated every six seconds, reflecting actual load changes and battery condition.

When the Calculated Times become available, they will be displayed in place of the Battery Discharg-

ing message on this screen.

Figure 47 Battery time screen (45-minute discharge)

The Battery Time Remaining graph and the Calculated times are extremely helpful to the operator who

has the discretionary authority to order load-shedding activities. The Series 610 automatically samples

battery voltage and load current and recomputes every six seconds. This gives the operator fast and

accurate feedback on efforts to extend battery time remaining by shutting down non-critical loads.

Figure 48 Accuracy range of values for calculated battery times

NOTE

While every effort has been made to make the Rated and Calculated Time Remaining values as

accurate as practical, these values must be regarded as approximations. At the beginning of the

discharge cycle, the Calculated times could be off by as much as ±20% due to such variables as

battery initial charge, age of battery and the subsequent load-shedding activities of the

operator. Within a few minutes, however, these calculations should settle into their design

accuracy of ±10%, with the end-of-discharge tolerance being +0, -10% of actual observed time.

In addition, the operator can adjust the settings affecting Rated Total Time after gaining

experience with the actual battery and connected load.

0102030405060

Time (Minutes)

340

360

380

400

420

440

460

480

500 VDC

Battery Shutdown = 417

Battery Charge = 3%

Total 00:45 Remain 0:01

Rated Time (Hrs:Min)

Total 00:25 Remain 0:00

SELECT : MASTER MENU

Low Battery Warning

Calculated Time (Hrs:Min)

0

5

10

15

20

25

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Elapsed Time (Minutes)

Calculated Time Remaining

Upper Limit Actual Lower Limit

Contents

Main SERIES 610 UPS BATTERY CABINET PRECAUTIONS CONTACTING LIEBERT FOR SUPPORT !WARNI NG TABLE OF CONTENTS Page FIGURES TABL ES IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS 1.0 I 1.1 System Description Page Types of System Control Cabinets (SCCs) 1.2 Reliability Designed for Success Other Factors to Consider 1.3 Safety Precautions 1.4 Modes of Operation 1.4.1 NormalLoad on UPS 1.4.2 Input Power Failure 1.4.3 Recharge 1.5 Operator Controls Page 1.6 Options Page 2.0 THEORY OF OPERATION 2.1 General Component Descriptions 2.1.1 System Control Cabinet 2.1.2 UPS Module 2.1.3 Battery Plant 2.2 Detailed Component Descriptions 2.2.1 Controls Hardware Software 2.2.2 Rectifier/Charger Operation Input Circuit Breaker Isolation Transformer Input Current Limit 2.2.3 Battery Charging Circuit Operation After Discharge Operation After End-of-Discharge Battery Disconnect Battery Charge Current Limiting 2.2.4 Inverter Operation Output Regulation and Overload Performance Non-Linear Load Characteristics Unbalanced Load Characteristics 2.2.5 Static Bypass Fuse Protection Shorted SCR Monitoring Static Switch Isolation Pulsed Parallel Operation Load Transfers Transfer and Retransfer Conditions 2.2.6 Redundant Mode 3.0 O 3.1 Display Screen and Operator Controls Features Figure 8 Typical operator controls Table 1 Typical operator controls Figure 9 Operator controls, typical SCCT System Control Cabinet Table 2 Typical SCCT System Control Cabinet operator controls Figure 10 Series 610 UPS and SCC operator control panels Table 3 Series 610 UPS and SCC operator control panels Figure 11 Switches behind SCC control panel door Table 4 Series 610 UPS and SCC operator control panels 3.2 Menu Tree Navigation 3.2.1 Master Menu Screen Page 3.2.2 SCC Monitor/Mimic Display Screen Input Metering Displays Output Metering Displays Status/Alarm Message Areas 3.2.3 Module Monitor/Mimic Display Screen Input Metering Displays Output Metering Displays Alarm Messages Figure 16 Monitor/Mimic display example: Normal power flow Figure 17 Monitor/Mimic display example: Utility fail Figure 18 Monitor/Mimic display example: Load on bypass, UPS modules on and charging battery 390A390A 270 kVA / 217 kW 325A 325A 325A 390A Figure 19 Monitor/Mimic display example: Load on UPS, one UPS module off line Figure 20 Monitor/Mimic Display example: Load on bypass, all UPS modules off line 3.2.4 Walk-In Display Screen 3.2.5 Status Reports Screens Present Status 39 Figure 23 Present status report screens, SCC (above) and module Event History SCC Status Report Module Status Report History Status OUTPUTVOLTS OUTPUTAMPS OUTPUTFREQUENCY LOADKVA BYPASSVOLTS A DC B TIMELOAD 349 Page System Status Page 3.2.6 System Configuration Screens Date Time Auto Dial Modem Baud Rate Maximum Auto-Retransfer Attempts System Current Rating Language Selection System Options Page Figure 39 Monitor/Mimic display example: Continuous Duty Static Switch Remote Monitor Table 6 SCC and module remote monitor indications Table 7 3.2.7 Alarm Limit Settings Screen Battery Float Voltage Temperature Limit Setting (Optional) 3.2.8 Load Transfer Procedures Screen 3.2.9 Start-Up Procedures Screen 3.2.10 Shutdown Procedures Screen Page 3.2.11 Battery Time Screen (Module Only) Page Page 3.2.12 Meter Calibration Screen 3.2.13 Battery Equalize Screen 3.2.14 Alarm and Status Messages Module Status Messages System Status Messages Load Block Messages Alarm Messages Table 9 Alarm messages - meaning and corrective action Page Page Page Table 10 Alarm messages - summary 3.2.15 Communication Interfaces Worldwide Reporting Local Reporting to a Terminal Local Reporting to a Monitor Site Reporting: SiteScan or SNMP Remote Monitor Panel Separate / Simultaneous Outputs 3.3 Modes of Operation 3.3.1 Load on Bypass 3.3.2 OK to Transfer Figure 53 Load on bypass, UPS available Figure 54 Load on UPS, bypass available 3.3.3 Momentary Overloads SCCT SCCT 3.3.4 Input Power FailureLoad on Battery 3.3.5 One Module Off-Line 3.3.6 Off Battery 3.3.7 Emergency Modules Off 3.3.8 Remote Emergency Power Off 3.3.9 System Shutdown 3.3.10 Maintenance Bypass Figure 62 Load on maintenance bypass, two breakers Figure 63 Load on maintenance bypass, three breakers SCCT STANDBYGENERATOR AUTOMATIC TRANSFERSWITCH 3.4 Manual Procedures 3.4.1 SCC Start-Up Procedure Page Page Page 3.4.2 UPS Module Start-Up Page Page 3.4.3 Load Transfer Procedures 3.4.4 Maintenance Bypass Load Transfers 3.4.5 Shutdown Procedures System Shutdown Procedure Module Shutdown Procedure Local Emergency Modules Off (LEMO) Remote Emergency Power Off (REPO) 3.5 Automatic Operations 3.5.1 Overloads (Without Transfer) 3.5.2 Automatic Transfers to Bypass 3.5.3 Automatic Retransfers to UPS 3.5.4 Automatic Module Off-Line 3.5.5 Automatic Emergency Modules Off 4.0 M 4.1 Safety Precautions 4.2 Liebert Global Services Professional Start-Up Maintenance Agreements: The Signature Program Training Warranties 4.3 Routine Maintenance 4.3.1 Record Log 4.3.2 Air Filters 4.3.3 Limited Life Components 4.4 Battery Maintenance 4.4.1 Battery Safety Precautions !AVERTISSEMENT !ATTENTION Matching Battery Cabinets (Optional) Rack-Mounted Batteries 4.4.2 Torque Requirements 4.5 Detection of Trouble 4.6 Reporting a Problem 4.7 Corrective Actions 4.8 Recommended Test Equipment 4.9 Upstream Feeder Circuit Breaker Setting Inspections 5.0 S 5.1 Rating 5.2 Environmental Conditions Table 17 Specifications applicable to environment 5.3 Adjustments 5.4 Battery Operation 5.5 Electrical Specifications Page Page The Company Behind the Products Technical Support/Service Locations AC POWER SYSTEMS SERIES 610 UPS OPERATION & MAINTENANCE MANUAL