Liebert Series 600T 3.2.10 Maintenance Bypass

88 Operation

3.2.10 Maintenance Bypass

MaintenanceBypass switchgear (cabinet, panelboard, switchboardor custom switchgear) allows you to totally

isolate the UPS system fr om all power sources, whil e you maintain power to the c ritical load.

Yourinstallation may have a two-breaker,three-breaker, or four-breaker MaintenanceBypass, or none at all.

Themain differences are the locations of the RectifierInput Breaker and the Bypass Input Breaker (BIB).

Anotheroption that may be present at your site is an alternatepower source (generator) and an automatic transfer

switch(ATS).

Notethat to totally isolate the UPS system from all power sources, the Main Input switchgear and battery circuit

breakersmust also be opened.

Figure 57 Load on Maintenance Bypass (Two Breakers)

CAUTION

Instructions for operating the Maintenance Bypass circuit breakers are on the

Maintenance Bypass cabinet. Make sure you understand the proper sequence

beforeoper atinga ny circuit breaker.Operating a Maintenance Bypa ss circuit

breaker out of sequence coul d cut off power to the critica l load.

I

R

CB2

System

Controls

BFB

Output

SBB

SBS

BFB

I

R

I

R

CB2 CB2

#2UPS

CB1

#1UPS

CB1

#3UPS

CB1

RIB RIB BIB

RIB

SCCT

SCCT

(canaccommodate up t o 6UP S modules)

ToCriticalLoad

Battery

MBD

Battery

MBD

Battery

MBD

SKRU

MIB

MBB

DISCONTINUED

PROD U C T

Contents

Main Series 600T UPS Page TABLE OF CONTENTS 1.0 I 2.0 THEORY OF OPERATION 3.0 O 4.0 M 5.0 SPECIFICATIONS AND RATINGS FIGURES TABLES I MPORTANT SAFETY I Save These Instructions. OVERVIEW OF THIS MANUAL 1.0 I 1.1 System Description Page Page Typesof 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 Normal (Load on UPS) 1.4.2 Input Power Failure 1.4.3 Recharge 1.4.4 Overload 1.5 Operator Controls Page 1.6 Options 2.0 THEORY OF OPERATION 2.1 General ComponentDescriptions System Control Cabinet UPS Module Battery Plant 2.2 Detailed ComponentDescriptions 2.2.1 Controls Hardware Firmware 2.2.2 Rectifier/Charger Operation Input Circuit Breaker Isolation Transformer Input Current Limit Input Current Inrush Input Power Factor Operation After End-of-Discharge Battery Disconnect Battery Charge Current Limiting Battery Equalize Charge Circuit 2.2.4 Inverter Operation Output Regulation and OverloadPerformance Non-Linear Load Characteristics Unbalanced Load Characteristics 2.2.5 Static Bypass Fuse Protection Shorted SCR Monitoring StaticSwitch Isolation Pulsed Parallel Operation Load Transfers Transferand Retransfer Conditions 2.2.6 Redundant Mode 3.0 O 3.1 Display Screen and Operator Controls Features Figure 8 Operator Controls, 65 to 80 kVA (left)and 100 to 500 kVA(right) Figure 9 System Control Cabinet Operator Controls (SCCB Pictured) Figure 10 Series 600T UPS and SCC Operator Control Pan els Figure 11 Switches Behind SCC Control Pane l Door Page 3.1.1 Master Menu Screen Page 3.1.2 Monitor/Mimic Display Screen Input Metering Displays Output Metering Displays Status/AlarmMessage Areas Input Metering Displays Output Metering Displays Alarm Messages Operation 35 36 Operation Figure 17 Monitor/Mimic Display Screen Examples: Utility Fail, SCC (above) and Module Operation 37 38 Operation Operation 39 Figure 20 Monitor/Mimic Display Screen Examples: Load on Bypass, All UPS Modules Off Line 3.1.3 Walk-In DisplayScreen 3.1.4 StatusReports Screens 42 Operation Present Status Operation 43 Event History 44 Operation History Status OUTPUTVOLTS OUTPUTAMPS OUTPUT FREQUENCY LOADKVA BYPASSVOLTS A DC B TIMELOAD 349 Page System Status Page 3.1.5 System Configuration Screens Date Time Auto Dial Modem Baud Rate Maximum Auto-Retransfer Attempts Remote Monitor 3.1.6 Alarm Limit Settings Screen Page Operation 57 3.1.7 Load TransferProcedures Screen 3.1.8 Start-Up Procedures Screen Page 3.1.9 Shutdown Procedures Screen Page 3.1.10 Battery Time Screen (Module Only) Page Page 3.1.11 Meter Calibration Screen 3.1.12 Battery Equalize Screen 3.1.13 Alarm a nd StatusMessages Module StatusMessages System Status Messages Load Block Messages Alarm Messages Table1 Alarm Messages - Meaning and Corrective Action Table1 AlarmMessages - Meaning and Corrective Action (continued) Page Table1 Alarm Messages - Meaning and Corrective Action (continued) Table2 Alarm Messages - Summary 3.1.14 Communication Interfaces Worldwide Reporting Local Reporting to aTerminal Local Reporting to aMonitor Site Reporting: SiteScan or SNMP Remote Monitor Panel Separate /Simultaneous Outputs 3.2 Modes of Operation 3.2.1 Load On Bypass 3.2.2 OK To Transfer 80 Operation Figure 49 Load on UPS (Bypass Available) (canaccommodate up t o 6UP S modules) SCCT 3.2.3 Momentary Overloads 3.2.4 Input Power Failure( LoadOn Battery) 3.2.5 One Module Off-Line 84 Operation 3.2.6 Off Battery (canaccommodate up t o 6UP S modules) Figure 53 Load on UPS (Battery Not Available) SCCT Operation 85 3.2.7 Emergency Modules Off (canaccommodate up t o 6UP S modules) SCCT 3.2.8 Emergency Power Off 3.2.9 System Shutdown 3.2.10 Maintenance Bypass Operation 89 Figure 58 Load on Maintenance Bypass (Three Breakers) SCCT STANDBYGENERATOR AUTOMATIC TRANSFERSWITCH (canaccommoda te up to6 UPSmodules) 3.3 Manual Procedures 3.3.1 Start-UpProcedure SCC Start-Up Page Page UPS Module Start-Up Page Page 3.3.2 Load TransferProcedures Maintenance Bypass Load Transfers 3.3.3 Shutdown Procedures System Shutdown Procedure Page Module Shutdown Procedure Local Emergency Modules Off (LEMO) Remote Emergency Power Off (RE PO) 3.4 Automatic Operations 3.4.1 Overloads (Without Transfer) 3.4.2 Automatic Transfers to Bypass 3.4.3 AutomaticRetransfers to UPS 3.4.4 Automatic Module Off-Line 3.4.5 Automatic Emergency Modules Off 4.0 M 4.1 Safety Precautions Page 4.2 Liebert Global Services Professional Start-Up Maintenance Agreements:The S ignatureProgram Training Warranties 4.3 Routine Maintenance 4.3.1 Record Log 4.3.2 Air Filters 4.3.3 Battery Maintenance Battery Safety Precautions Page Page Page Matching Battery Cabinets (Optional) Rack-Mounted Batteries 4.3.4 TorqueRequirements 4.4 Detection of Trouble 4.5 Reporting a Problem 4.6 Corrective Actions 4.7 RecommendedTest Equipment 5.0 SPECIFICATIONS AND RATINGS 5.1 Rating 5.2 EnvironmentalConditions 5.3 Adjustments 5.4 Battery Operation 5.5 Electrical Specifications Page Series 600T UPS TechnicalSupport The Company Behind The Produc ts