Load On Bypass, Scct | Liebert Series 600T guide

3.2Modes of Operation

This section illustrates the flow of power through circuit breakers, switches, and UPS components during various modes of operation. An SCCB with three modules is shown. The same modes of operation apply to all configu- rations of the Liebert Series 600T UPS multi-module system. Highlighted (thick) lines in the diagrams indicate power flow and power availability.

These illustrations show a three-breaker maintenance bypass because it is most commonly used. Your installa- tion may have a two-breaker, three-breaker, or four-breaker maintenance bypass, or none at all.

These illustrations do not show an alternate power source (generator) and automatic transfer switch (external to the UPS) that might be present at your installation.

The following circuit breaker abbreviations are used:

BFB	Bypass Feeder Breaker
BIB	Bypass Input Breaker
CB1	Module Input Breaker
CB2	Module Output Breaker
MBB	Maintenance Bypass Breaker
MBD	Module Battery Disconnect
MIB	Maintenance Isolation Breaker
RIB	Rectifier Input Breaker
SBB	System Bypass Breaker

3.2.1Load On Bypass

Load on Bypass, with the UPS not available, is shown in Figure 47. The UPS system could be in this mode of operation during either initial start-up or UPS system shutdown and isolation for maintenance.

Figure 47 Load on Bypass (UPS Not Available)

RIB

RIB

RIB

BFB

UPS #3

UPS #2

UPS

#1

CB1

CB1

CB1

SBS

R

R

R

BIB

SBB

I

I

I

MBB

System

CB2

CB2

CB2

SKRU

Controls

Output MIB

										SCCT
										To Critical Load
										To Critical Load
			MBD			MBD				MBD
										SCCT
	Battery			Battery			Battery			SCCT
	Battery			Battery			Battery			(can accommodate up to 6 UPS modules)
										(can accommodate up to 6 UPS modules)

78	Operation	DISCONTINUED
		PRODUCT

Image 84

Liebert Series 600T manual Load On Bypass, Scct

Contents

Series 600T UPS DIS Product Table of Contents Manual Procedures Figures Tables Important Safety Instructions Overview of this Manual System Description Multi-Module UPS, 65-80 kVA left and 100-500 kVA right Product Multi-Module 500-750 kVA UPS Types of System Control Cabinets SCCs System Control Cabinets SCCs Reliability Designed for SuccessOther Factors to Consider Safety Precautions Modes of Operation Operator Controls DIS Product Options General Component Descriptions System Control Cabinet Battery Plant UPS Module Detailed Component Descriptions Controls HardwareFirmware Rectifier/Charger Input Power Factor Battery Charging CircuitInput Circuit Breaker Isolation Transformer Battery Disconnect Battery Charge Current LimitingBattery Equalize Charge Circuit Operation After End-of-Discharge Non-Linear Load Characteristics Unbalanced Load CharacteristicsInverter Output Regulation and Overload Performance Static Switch Isolation Static BypassFuse Protection Shorted SCR Monitoring Pulsed Parallel Operation Load Transfers Transfer and Retransfer Conditions Automatic Transfers to BypassManual Transfers Transfer Inhibited Redundant Mode Manual RetransfersRetransfer Inhibited Features Display Screen and Operator Controls Description Function System Control Cabinet Operator Controls Sccb Pictured Shutdown Procedures Description Location Function Switches Behind SCC Control Panel Door Menu Tree Master Menu Screen WALK-IN Display modules only Load Transfer Procedures SCC only Battery Time modules onlyCustomer Alarm Definitions SCC only Monitor/Mimic Display Screen Input Metering DisplaysOutput Metering Displays Status/Alarm Message Areas Item 7 Alarm MessagesItem 5 Module Status Messages Item 6 System Status Messages Module Monitor/Mimic Display Screen Alarm Messages Item 5 Alarm Messages MOD 1 on Line MOD 2 on Line MOD 3 on Line UPS Ratings UPS Input PWR UPS Ratings UPS Input PWR Bypass Input Load Bypass Input C-A Walk-In Display Screen Walk-In Display Screen During Start-Up Status Reports Screens Status Reports Screen Present Status Select Exit Event History Event History MODULE-0 History Status History Status Report Screens SCC Module Battery Cycle Monitor Module Only System Status Battery Cycle Monitoring Summary Screen System Configuration Screens System Configuration Date Date Screen Time Time Screen Auto Dial Dial Modem Baud Rate Modem Baud Rate Maximum Auto-Retransfer Attempts Retransfer Attempts Remote Monitor Alarm Limit Settings Screen Alarm Settings Product Load Transfer Procedures Screen Refer to 3.3.2 Load Transfer Procedures for more details Start-Up Procedures Screen Refer to 3.3.1 Start-Up Procedure for more details Module Start- Up Procedures Screen Shutdown Procedures Screen Shutdown Procedures Module Shutdown Procedures Screen Battery Time Screen Module Only VDC Battery Time Screen Example 45 Minute Discharge Range of Values for Calculated Battery Times Aining Rem Tim Calculated La p s e d T im e M in u te s Meter Calibration Screen UP Cursor UP Down Cursor Down Select Choose Battery Equalize Screen Battery Equalize Recharging Alarm and Status Messages Module Status Messages 3 Modules Connected System Status Messages Load Block Messages Abbreviations Used in Alarm Messages OF/UF DC Ground Fault Battery CB OpenPower Battery Manual Reset Static SwitchBypass Phase Control Power Alarm Indications and Other Alarms That Activate Summary AlarmsSystem Configuration Screens or the watchdog timer has Reverse Power Temperature Over-TemperatureTimeout System Configuration Screens Load On UPS Alarm Message Special Functions Communication Interfaces Worldwide ReportingAuto-Dial Requesting Information Local Reporting to a Terminal Local Reporting to a MonitorSite Reporting SiteScan or Snmp Remote Monitor Panel Separate / Simultaneous Outputs Load On Bypass Scct OK To Transfer Load on Bypass UPS Available Load on UPS Bypass Available Momentary Overloads Refer to 3.4 Automatic Operations Input Power Failure Load On Battery Input Power Fail Load on Battery One Module Off-Line One Module Off-Line Load on UPS Off Battery Load on UPS Battery Not Available Refer to 3.3.3 Shutdown Procedures Emergency Modules Off Emergency Power Off Emergency Power Off Refer to 3.2.10 Maintenance Bypass System Shutdown Load on Maintenance Bypass Two Breakers Load on Maintenance Bypass Three Breakers Manual Procedures Refer to 3.4 Automatic Operations for more details Start-Up Procedure SCC Start-Up B2. Set the Static Switch Disconnects OFF open SCC Start-Up Procedures Screen UPS Module Start-Up Module Start-Up Procedures Screen Product Load Transfer Procedures Maintenance Bypass Load Transfers Maintenance BypassIf the load is on Maintenance Bypass System Bypass Shutdown Procedures System Shutdown Procedure UPS bypass line is still energized 100 Module Shutdown Procedure Remote Emergency Power Off Repo Local Emergency Modules Off Lemo Automatic Operations Overloads Without Transfer Automatic Transfers to Bypass Automatic Retransfers to UPS Automatic Module Off-Line Automatic Emergency Modules Off Maintenance DIS Product Liebert Global Services Maintenance Agreements The Signature ProgramProfessional Start-Up Training Routine Maintenance Record LogAir Filters Battery Maintenance Battery Safety Precautions DIS Product 112 DIS Product Matching Battery Cabinets Optional Power BatteriesRack-Mounted Batteries Torque Requirements Torque Specifications Unless Otherwise Labeled Detection of Trouble Reporting a Problem Corrective ActionsRecommended Test Equipment Rating Environmental Conditions Adjustments Battery Operation Electrical Specifications Voltage Adjustment Range Phase BalancingVoltage Transient Recovery Time Voltage Harmonic Content Series 600T UPS