Liebert 1000kVA 3.3.8 Remote Emergency Power Off

Operation

81

3.3.8 Remote Emergency Power Off

The Remote Emergency Power Off (REPO) mode is used to remove all power from the critical load.

The Remote Emergency Power Off control is a switch located remotely from the UPS system. It will

normally be in the same room as the critical load equipment. This mode can also be initiated by an

automatic contact closure in the same external circuit as the manually operated switch.

When you operate the Remote Emergency Power Off switch, all UPS circuit breakers are opened,

including the bypass circuit breaker. All power through the UPS is removed from the load. Typically,

the REPO circuit also opens the circuit breakers that provide power to the bypass lines and the UPS

controls.

Refer to 3.4.5 - Shutdown Procedures.

Figure 60 Emergency power off

BIB

SKRU

MIB

MBB

I

R

#2UPS

CB1

CB2

System

Controls

RIB RIB RIB BFB

SBB

SBS

RIB RIB RIB BFB

#1UPS#3UPS

I

R

#1UPS

CB1

I

R

#3UPS

CB1

CB2 CB2

Output

SCCT

SCCT

(canaccommodate up to 6 UPS modules)

ToCritical Load

Battery

MBD

Battery

MBD

Battery

MBD

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