Home

Liebert 600 User's Manual

1. EAM ANM 164 in o Cabinet depth of 500 kVA modules is 38 inches Cabinet depth of 625 and 705 HL kVA modules is 41 inches Refer to drawings for 208 VAC dimensions 500 kVA and for 750 LL and 1000 kVA modules not shown Modes of operation that utilize less reliable components have been minimized For example the system has the capability to clear substantial overloads through the solid state static bypass switch without transfer to the bypass source Minimizing transfers to bypass enhances the system reliability The control logic is 1solated from heat generating components to assure optimal operating temper atures The reliability of the critical bus is the key consideration in the design and manufacture of all Lie bert Large UPS systems By using this manual you should be able to oversee the installation as well as operate and perform routine maintenance on the Series 600 UPS If you ever need help call Liebert Customer Service and Support 24 hours a day at 1 800 543 2378 The superior design and construction of the units combined with your attention to proper installation opera tion and periodic maintenance ensures that your business operations receive the best possible protection from electrical disturbances and outages 6 Introduction 1 3 Safety Precautions Read this manual thoroughly paying special attention to the sections that apply to you before working with the U
2. System Control Cabinet SCC Block Diagram Operator Controls 150 to 225 kVA left and 300 to 450 kVA right Operator Controls 338 to 1000 SCR Based Modules System Control Cabinet Operator Controls SCCB Pictured Series 600 UPS and SCC Operator Control Panels Switches Behind Control Panel Door 338 1000 kVA SCR Based Modules Menu Pee 2 508 Bate pa u obec tied atre q Me ee Master Menu Screens SCC Monitor Mimic Display Screen Module Monitor Mimic Display Screen Monitor Mimic Display Screen Examples Normal Power Flow Monitor Mimic Display Screen Examples Utility Fail Monitor Mimic Display Screen Examples Load On Bypass UPS Modules On and Charging Battery Monitor Mimic Display Screen Examples Load On UPS One UPS Module Off Line Monitor Mimic Display Screen Examples Load On Bypass All UPS Modules Off Line Walk In Display Screen During Start Up Status Reports Screen Present Status Repor
3. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Time Minutes NOTE Q If the UPS modules connect to independent battery plants consult all the individual module screens to get the complete picture If the modules share acommon battery select one module to do the monitoring and disregard the others The screen also displays alarm messages Battery Discharging Low Battery Warning and Bat tery Shutdown and a set of five parameters that inform the operator of battery condition and time remaining The five parameters describing battery resources are Rated Total Time in hours and minutes is the amount of battery backup time that should be available under full rated load based on system design Rated Time Remaining is the Rated Total Time less the duration of the present discharge event Calculated Total Time is an estimate of the total battery backup time available based on the initial battery condition and actual performance while powering the connected load during the discharge event Calculated Time Remaining is a real time estimation of battery time remaining with the actual connected load before battery voltage drops to the Battery Shutdown setpoint Battery Charge is the approximate percentage of total designed ampere hours of battery capacity presently available based on recharge discharge activity Values for Calculated Total Time and Calculated Time Remaining will appear on the screen approximately two minutes after
4. 3 Shutdowns including module shutdowns for maintenance procedures and emergency shutdowns Operation 91 3 3 1 Start Up Procedures SCC Start Up When the UPS system has been shutdown for any reason use this procedure to start up the UPS system to provide filtered reliable power to the critical load This procedure gives step by step instructions for controls to operate and conditions to observe Your present situation could be ini tial start up or recovering from input power failure battery shutdown maintenance shutdown or an emergency shutdown NOTE Q The following procedure assumes that the UPS installation inspection and initial start up have been performed by Liebert Customer Service A Liebert authorized representative must perform the initial system start up to ensure proper system operation CAUTION The following procedure provides power to the critical load distribution system Verify that the critical load distribution is ready to accept power Make sure that personnel and equipment are ready for the critical load distribution system to be energized If your installation includes a Maintenance Bypass you may already be supplying power to the critical load equipment through the Maintenance Bypass If there is no power to the critical load apply power through the UPS bypass line per the following procedure During a start up procedure power is supplied to the critical load through the UPS internal bypa
5. 15 Minute Discharge Battery Time Screen Example 45 Minute Discharge Tolerance Range of Values for Calculated Battery Times Meter Calibration Screen Battery Equalize Screen Figure 48 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 Table 1 Table 2 Table 3 Table 4 Table 5 SCC Status and Alarm Message 68 Load on Bypass UPS Not Available 79 Load on Bypass UPS 80 Load on UPS Bypass 81 Momentary Overload Through Static Bypass Switch 82 Input Power Fail Load on Battery 83 One Module Off Line Load on UPS 84 Load on UPS Battery not Available 85 Emergency Modules Off 86 Emergency Power Off ise u su anak ri AUS Re A Re dis ote d ale dre toros
6. Remove watches rings or 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 6 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 The following procedures should be followed 1 DO NOT SMOKE when near batteries 2 DO NOT cause flame or spark in battery area 3 Discharge static electricity from body before touching batteries by first touching a grounded metal surface Qu E Maintenance 111 Battery Safety Precautions In French Per CSA Requirements Instructions Importantes Concernant La Securit Conserver Ces Instructions ZN ADVERTISSEMENT DES PIECES SOUS ALIMENTATION SERONT LAISSEES SANS PROTECTION DURANT CES PROCEDURES D ENTRETIEN UN PERSONNEL QUALIFIE EST REQUIS POUR EFFECTUER CES TRAVAUX LES FUSIBLES A C C DE LA BATTERIE D ACCUMULATEURS OPERENT EN TOUT TEMPS A LA TENSION NOMINALE LA PRESENCE D UN FUSIBLE A C C BRULE INDIQUE UN PROBLEME SERIEUX LE REMPLACEMENT DE CE FUSIBLE SANS AVOIR DETERMINE LES RAISONS DE LA DEF
7. SELECT CHOOSE MASTER MENU MONITOR MIMIC DISPLAY START UP PROCEDURES WALK IN DISPLAY SHUTDOWN PROCEDURES STATUS REPORTS BATTERY TIME SYSTEM CONFIGURATION METER CALIBRATION LIMIT SETTINGS BATTERY EQUALIZE Module From any primary screen accessed directly from the Master Menu pushing the Select pad once will return you to the Master Menu From any secondary screen pushing the Select pad twice will return you to the Master Menu Please note that some screens have multiple pages However in each case instructions appear for accessing other pages 1 MONITOR MIMIC DISPLAY This graphic mimics the power flow through the UPS system Input voltage and current read ings battery status UPS ratings load readings circuit breaker indications system status and alarm messages are all displayed on this screen 2 WALK IN DISPLAY modules only This is a bar graph that shows DC bus voltage input currents and UPS module output volt age all in percent of nominal 30 Operation 10 11 12 STATUS REPORTS This display consists of three sub menu selections Present Status History Status and Event History These screens display data on the system s present and past performance They also display information about any faults that have occurred in the system Total operating hours for controls are displayed and LCD back lighting can be turned on or off SYSTEM CONFIGURATION This screen displays
8. The Remote Monitor Panel optional displays eight 8 alarms These alarms are also available for customer use through a set of contacts on a separate terminal board When the New Alarm System Summary Alarm or Module Summary Alarm is activated you can get more information at the Operator Display Panel or through a remote terminal Refer to 3 1 14 Communication Interfaces SCC and Module Remote Monitor Indications SCC Remote Monitor Indications Channel Module Remote Monitor Indications Load On UPS CH1 Output CB Open Load On Bypass CH2 Battery CB Open Battery Discharging CH3 Battery Discharging Low Battery Warning CH4 Low Battery Warning Overload CH5 Control Failure Ambient Over Temp CH6 Ambient Over Temp System Summary Alarm CH7 Module Summary Alarm New Alarm CH8 New Alarm The following alarms as well as those listed above will activate the System Summary Alarm or the Module Summary Alarm Other Alarms That Activate Summary Alarms Other Alarms That Activate Other Alarms That Activate System Summary Alarm Module Summary Alarm Control Power Fail Blower Failed Emergency Off Control Power Fail Module Summary Alarm DC Capacitor Fuse Blown Output Over Under Frequency DC Ground Fault Output Over Voltage DC Over Voltage Shutdown Output Under Voltage Emergency Off Overload Transfer Equipment Over Temperature Static Switch Unable Inverter Fuse
9. e Relaying selected alarm messages to a Liebert Remote Monitor Panel and to a separate terminal board for customer use NOTE All external communication devices are optional equipment Firmware The Operator Interface Display System software enables the operator to monitor the UPS system status to control the power flow through the UPS to monitor all of the meter readings to execute the start up shutdown and the load transfer procedures to access the event history files and to make adjustments to the programmable parameters The following is a list of the firmware fea tures 1 The menu driven software prompts the operator for input 2 Step by step instructions assist the operator during the start up shutdown and the load transfer procedures This helps to eliminate operator errors 3 Graphics based mimic diagrams illustrate circuit breaker status and the power flow through the UPS system 4 The Present Status screen reports information about the system s present status The History Status screen chronicles the events leading up to and immediately after a fault The Event History screen lists all of the alarm messages that have been logged over a period of time 5 The Battery Cycle Monitor records information on up to 132 battery discharge events Information includes date time length of discharge highest current demand lowest battery voltage and cumulative battery amp hours discharged Refer to 3 0 Operation for a des
10. AMPS 15 CHARG Liebert SCCB 1600 OUTPUT VOLTAGE SA B SB C 480V 480V 480V 60 0 Hz OK to Transfer Static Switch Connected SCC D Liebert AP640 14 RATED 338 KVA OUTPUT VOLTAGE SAB ZB C ZC A 480V 480V 480V 60 0 Hz On Line Module LOAD 627 KVA 502 KW SK B BC 755A 755A 755A 2 OF 3 MODULES CONNECTED NON REDUNDANT Module Sum Alm LOAD 314 KVA 251 KW SA B ZC 378A 378A 378A Figure 21 Monitor Mimic Display Screen Examples Load On UPS One UPS Module Off Line 39 Operation Figure 22 Monitor Mimic Display Screen Examples Load On Bypass All UPS Modules Off Line BYPASS INPUT SA B B C C A 479V 480V 480V 60 0 Hz UPS INPUT PWR SAB SB C SC A 480V 480V 480V MOD 1 OFF LINE SUM ALM MOD 2 OFF LINE SUM ALM MOD 3 OFF LINE SUM ALM UPS INPUT PWH SAB 2 S 480V 480V 480V 0A 0 0A MODULE DC BUS VOLTS 0 AMPS 0 Liebert UPS RATINGS SCCB 1600 OUTPUT VOLTAGE SA B SB C SC A OV o OV 0 Hz Not OK to Transfer Static Switch Connected SCC Liebert UPS RATINGS AP640 14 RATED 338 KVA OUTPUT VOLTAGE SA B B C SC A OV OV OV 0 Hz Module LOAD 627 KVA SB C 755A 755A 755A 0 OF 3 MODULES CONNECTED NON REDUNDANT Load On Bypass Static Sw Unable Module Sum Alm LOAD 0KVA 0 KW SA SB 0 0 Input Fail Batt CB Open 40 Operation 3 1 3 Walk In Display Screen From th
11. NOTE Q Depending on SCC model the static switch disconnects can be two circuit breakers or plug in connections on a drawout carriage assembly The location could be at the front right or rear of the cabinet Refer to the drawing of the SCC cabinet selected for your UPS system Operation 93 b3 Find the Close Bypass switch SW1 on the System Interface Board Figure 13 Press this switch to reset the System Bypass circuit breaker Check the Monitor Mimic screen to verify the breaker is closed b4 Press two Reset Switches for Static Switch Disconnects behind door below SCC control panel see Figure 11 b5 Set the Static Switch Disconnects to ON closed c Ifthe UPS Bypass line is available but not yet supplying power to the load close the circuit breakers external to the UPS required to provide power to the critical load equipment If you have a Maintenance Bypass this will include the Maintenance Isolation Breaker MIB CAUTION Be sure to operate Maintenance Bypass circuit breakers in the proper sequence cl Verify the Bypass Input Breaker BIB and System Bypass circuit breakers are closed c2 Close the Maintenance Isolation Breaker MIB c3 Open the Maintenance Bypass Breaker MBB Observe the Monitor Mimic Display screen to confirm that the UPS Bypass line is energized and supplying power to the critical load equipment At the System Control Cabinet SCC press the Select pad to put the Master Menu on
12. and on the System One Line Diagram The rated output power envelope of the UPS is illustrated in Figure 67 The UPS is rated to deliver rated kVA and rated kW at 0 8 lagging power factor pf or 0 9 lagging pf for some models However the UPS will operate connected loads with power factors ranging from 0 7 lag ging through 1 0 unity Connected load kW and kVA are both displayed on the LCD screen when the UPS is powering the load Power factor may be easily calculated by kW kVA pf For load power factors between 0 7 lagging and 1 0 the full kVA rating of the unit is available However above the rated pf the kW rating will become the limiting factor Note that some models are specifically rated for a 0 9 lagging output power factor For loads with power factors below 0 7 lagging or with leading power factors the UPS output is kVA limited and the UPS System may not meet all of its output performance specifications Con sult your Liebert sales representative for performance specifications for these applications Figure 67 Output Power Envelope for 0 8 pf Rated Units Rated kVA kW Rated kW 118 Specifications and Ratings Environmental Conditions Enclosure The UPS is housed in a NEMA 1 enclosure The enclosure is designed for indoor use only and is not to be subjected to falling objects or precipitation Recommended Operating Temperature 25 C Maximum Operating Temperature 40
13. have touch sensitive switches behind them 3 Down Similar to the Up pad this pad is used to move the cursor down through the various SCC and modules selections present on the display screen 4 Select After choosing the desired item with highlighted cursor from the display screen with SCC and modules the Up and Down pads pushing this pad tells the microprocessor to go to the highlighted selection 5 Alarm Reset This pad is used to clear all of the alarm conditions that are no longer present SCC and modules However all active alarms remain in memory and on the applicable screens until they are corrected This pad also resets the History Status Report memory buffer when held for 5 seconds 6 Voltage Adjust This push to turn knob permits adjustment of the UPS output voltage to meet load SCC only requirements or to match the bypass voltage before transferring the load to or from bypass 7 UPS This pad activates the circuits that connect the UPS to the critical load a retransfer SCC only When this pad is pushed along with Control Enable the UPS output circuit breaker closes and the bypass circuit breaker opens 8 Bypass This pad activates the circuits that connect the bypass line to the critical load a SCC only transfer When this button is pushed along with Control Enable the bypass circuit breaker closes and the UPS output breaker opens 9 Control Enable This pad must be pressed simultaneously with the UPS Bypass Battery Trip o
14. hour minute second in the UPS system clock You must include the colon as you key in the time Note that the t command must be lower case H return Prompts the UPS system to hang up its modem only applicable to the modem communications port l return Display Battery Cycle Monitor information for 0 30 second discharge events J return Display Battery Cycle Monitor information for 31 90 second discharge events K return Display Battery Cycle Monitor information for 91 240 second discharge events L return Display Battery Cycle Monitor information for over 240 second discharge events M return Display Status Summary screen of battery discharge events N return Show detail information on all battery discharge events in order of occurrence Last In First Out backspace Moves cursor left to cancel previous entry or command Operation 3 2 Modes 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 configurations of the Liebert Series 600 UPS multi module system High lighted 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 installation may have a two breaker or three breaker maintenance bypass or
15. parallel module load sharing is a function built into the modules themselves Modules do not require master clocks or controls in order to load share or free run at 60 0 Hz Static Bypass Switch The static solid state bypass switch immediately transfers the load from the inverter to the bypass AC power source in the event of a severe overload on the system or a failure within the UPS This transfer takes place without any interruption of the power sup plied to the load The system includes redundant circuits to detect and isolate shorted SCRs in the static switch Fuses are installed in series with the static bypass circuit to ensure reliable overload protection in the unlikely event of a catastrophic output condition e g a dropped wrench electrically close to the output of your UPS system The static switch SCRs themselves are rated to easily handle the fuse blowing current Bypass Circuit The bypass circuit consists of motor operated circuit breakers and associated synchronizing and control circuitry to transfer the load to from the bypass source Theory of Operation 13 Figure 7 UPS Module Block Diagram UPS MODULE i t t i 1 Control Q Wiring To SCC CONTROL POWER Utility Input Power CBi Module Input Breaker CB2 Module Output Breaker MBD Module Battery Disconnect UPS Module The UPS module consists of module controls a rectifier charger an inverter protective devices and other accessories M
16. the cause should be determined before you replace the fuse Contact Liebert Customer Service and Support Introduction 7 Figure 4 System Control Cabinets SCCs 78 in SCCP Dimensions SCCB Dimensions WxD Weight WxD Weight Amps Inches Lbs Amps Inches Lbs 2000 37 x 50 1400 4000 132 x 60 4880 1120 1600 37 x 50 1250 2000 3000 61 x 50 2370 560 960 37 x 37 1000 1280 1600 60 x 50 2000 200 960 37 x 33 1000 640 800 37 x 37 1100 TYPES OF SYSTEM CONTROL CABINETS SCC SCCB A stand alone cabinet containing system control logic for up to six UPS modules static bypass switch manually operated disconnects for static bypass switch and two motor operated system circuit breakers SCCC integrated configuration like SCCI with the static bypass switch rated for continuous duty SCCI System control logic and static bypass switch are integrated into a switchboard cabinet manufactured by others which also includes the system circuit breakers SCCP Astand alone cabinet similar to SCCB except smaller in width and designed for two UPS modules a pair Current range is 200 to 2000 amperes 8 Introduction 1 4 1 4 1 1 4 2 1 4 3 1 4 4 1 4 5 1 4 6 1 4 7 1 4 8 Modes Of Operation Refer to 2 0 Theory of Operation and 3 0 Operation for more details Normal Load on UPS The utility AC source provides power to the rectifier charger in each UPS module Each rectifier charger conver
17. 1 11 Meter Calibration Screen 66 3 1 12 Battery Equalize Screen 67 3 1 13 Alarm and Status Messages 68 3 1 14 Communication Interfaces 2 76 TABLE OF CONTENTS 3 2 3 3 3 4 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 5 0 5 1 5 2 5 3 5 4 5 5 Modes of Operations isse hr eeu PRORSUS nat I edibus 79 39 2 1 oad Gn Bypass ror coro d RES Q Sau RO ec ee aca eU due ba asuy g 79 9 2 2220 K TO Transi et Een sue Dre ett OR e Sip ded Buts tt dr Do ra keene a 80 3 2 9 Momentary Overloads Ay u eee b tee cm arce E e u soap rm d 82 3 2 4 Input Power Failure Load on Battery 83 3 25 One Module Off Line 84 9 2 0 Off Battery a ue rer PR DU n datae ed t detti Le de sdb 85 3 2 7 Emergency Modules Off 86 3 2 8 Emergency Power 87 3 2 9 System Shutdown 88 3 20 Maintenance Bypass x ayy up ee ere TCR pA C EE V UR TRE 89 Manual Procedures au u v oue PC CU D ae ea a IOI 91 9 91 Start Up Proceduress i aides af se ie esu eee e dE E
18. F To be completed by Liebert Customer Service Representative at time of start up 114 Maintenance Matching Battery Cabinets Optional for 150 to 450 kVA Although the individual battery cells are sealed valve regulated and require only minimal main tenance 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 Customer Service and Support Battery Voltage VDC Number of Cells Nominal Float 240 480 527 576 Power Connections Check for corrosion and connection integrity Visually inspect wiring for discolored or cracked insulation Clean and or retighten as required Refer to torque specifica tions Table 4 Battery Cell Terminals Check for discoloration corro
19. ID 00000 SITE TAG 0000000 ACTIVE ALARMS Batt Discharging A B C DC LOAD HERTZ TIME OUTPUT VOLTS 480 480 480 OUTPUT AMPS 325 325 325 OUTPUT FREQUENCY 60 0 LOAD KVA 270 0 06 BYPASS VOLTS 0 0 0 END OF REPORT SELECT EXIT SCC FRAME 35 PRESENT STATUS MODULE 1 01 12 96 14 06 26 ORDER 000000 SITE ID 00000 SITE TAG 0000000 ACTIVE ALARMS Batt Discharging A B DG LOAD HERTZ TIME OUTPUT VOLTS 480 480 480 OUTPUT AMPS 325 325 325 OUTPUT FREQUENCY 60 0 BATTERY VOLTS 360 0 08 BATTERY AMPS 645 INPUT VOLTS 0 0 0 INPUT AMPS 0 0 0 LOAD KVA 270 END OF REPORT SELECT EXIT Module Operation 43 Event History The Event History screen lists the active alarms present in the UPS system SCC or modules This screen also displays the prior 128 alarm frames in a first in first out FIFO sequence that have taken place along with the date and the time that each alarm frame occurred Use the Up and Down pads to look through the different alarm frames Figure 26 Event History Report Screen EVENT HISTORY MODULE 0 01 17 96 15 06 41 FRAME 175 ORDER 000000 SITE ID 00000 SITE TAG 0000000 ACTIVE ALARMS Low Batt Warning Batt Discharging Low Batt Shutdn UP NEXT FRAME DOWN PREVIOUS FRAME SELECT EXIT 44 Operation History Status The History Status screen displays 64 frames of 4 milliseconds each from the Present Status screen Note that t
20. Liebert UPS RATINGS AP640 14 RATED 338 KVA OUTPUT VOLTAGE SAB ZB C SCA 480V 480V 480V 60 0 Hz Not OK to Transfer Static Switch Connected Module LOAD 627 502 KW SA B c 755A 755A 755A 3 OF 3 MODULES CONNECTED REDUNDANT Byp Not Avail Static Sw Unable Module Sum Alm LOAD 270 KVA 217 KW SA SB SC 325A 325A 325A Input Fail Batt Discharging Operation 37 Figure 20 Monitor Mimic Display Screen Examples Load On Bypass UPS Modules and Charging Battery BYPASS INPUT SA B B C SCA 480V 480V 480V 60 0 Hz UPS INPUT PWR SAB 2 B C C A 480V 480V 480V MOD 1 ON LINE MOD 2 ON LINE MOD 3 ON LINE UPS INPUT PWR ZA B B C Z C A 480V 480V 480V 90A 90 90 VOLTS 405 AMPS 75 CHARG 0 Liebert UPS RATINGS SCCB 1600 OUTPUT VOLTAGE SA B SBC SC A 480V 480V 480V 60 0 Hz OK to Transfer Static Switch Connected SCC O Liebert UPS RATINGS AP640 14 RATED 338 KVA OUTPUT VOLTAGE PRB ZB C SCA 480V 480V 480V 60 0 Hz Module LOAD 627 KVA 502 KW SA SB SC 755A 755A 755A 3 OF 3 MODULES CONNECTED REDUNDANT Load On Bypass 38 Operation BYPASS INPUT A B B C SC A 479V 480V 480V 60 0 Hz UPS INPUT PWR SAB ZB C C A 480V 480V 480V MOD 1 ON LINE MOD 2 OFF LINE SUM ALM MOD 3 ON LINE UPS INPUT PWR SAB SBCSCA 480V 480V 480V 405A 405A 405A BATTERY VOLTS 405
21. Output To Critical Load MBD X MBD MBD SCCB can accomodate up to 6 UPS modules 84 Operation 3 2 6 Off Battery The battery plant can be disconnected from the UPS modules if required for battery mainte nance by opening the module battery disconnect MBD circuit breakers In this situation the UPS system will continue to supply conditioned power to the critical load but if input power fails the UPS system cannot supply power to the load N CAUTION When the UPS system is operating with the module battery disconnect MBD circuit breaker s open the critical load is not protected from loss of the utility source power Figure 55 Load on UPS Battery not Available System Controls Output To Critical Load MBD MBD MBD SCCB Battery Battery can accomodate up to 6 UPS modules Operation 85 3 2 7 Emergency Modules Off The Local Emergency Modules Off LEMO mode is used to remove power from all UPS system components and the critical load will continue to be supplied through the bypass line The Emergency Module Off control is a guarded pad on the SCC Control Panel Figure 12 Lift the cover and press the pad The load will be transferred to bypass and the battery MBD input and output circuit breakers will be opened tripped This will remove power from all UPS system components except the controls system bypass circuit breaker and the static switch Refer to 3 3 3 Shutdown Proce
22. Summary Special Alarm Message MMU SCC Functions Input Fail X DC Ground Fault X 1 5 DC Capacitor Fuse Blown X D F S Battery CB Open X R S Battery Discharging X R R S Low Battery Warning X R R S Low Battery Shutdown X D F L S DC Over Voltage Shutdown X D F L S Load On Bypass X R Auto Transfer to Bypass E D F Auto Retransfer Primed X Manual Reset Retransfer X Static Switch Unable X S Bypass Not Available X Bypass Phase Sequence Wrong X Input Current Unbalanced E Control Power Fail X R X 1 5 Output Over Under Frequency X 1 5 Output Under Voltage X D F L S Output Over Voltage X D F L S Overload X X R S Overload Transfer D F L S Inverter Non Synchronized X Module N 1 6 Off Line R X D Overload Shutdown X D F L S Reverse Power X D F L S Rectifier Fuse Blown X D F S Inverter Fuse Blown SCR Models X D F S Inverter Fault Transistorized Models X D F S Hardware Shutdown X Df Emergency Off X X D L S Ambient Over Temperature X R R S Blower Failed X S Equipment Over Temperature X S Over Temperature Timeout X D F Load On UPS R New Alarm R R Module Summary Alarm R X S System Summary Alarm R D Auto Dial initiated D Auto Dial initiated
23. These include the time date auto dial phone SCC and modules number and other site parameters 2 Close Bypass Switch Press this button to close the Bypass circuit breaker during a start up procedure if SW1 on System it remains open after a shutdown procedure refer to 3 3 1 Start Up Interface Board Procedures Note that the Static Switch Disconnects must be OFF to reset the SCC only Bypass circuit breaker See also Bypass Reset Switch Item 3 3 Bypass Reset Switch Press this button to reset the transfer relays during start up after an Emergency SW1 on Transfer Power Off shutdown You must press this button before the Close Bypass Switch Relay Board Item 2 SCC only 28 Operation Figure 14 Menu Tree Master Menu Monitor Status Limit Start up Battery Battery Deney Reports Settings Procedures Time Equalize Customer Alarm Definitions Optional Load Transfer Procedures Meter Calibration Walk in Shutdown Procedures Display Present Status Event History History Status System Status Battery Cycle Monitor Auto Dial Figure 14 illustrates the primary screens that you can access through the Operator Interface Display System The liquid crystal display LCD screen is back lighted for easy readability The following subsections describe what these screens display and how and when to use them Module status information is available on the display screen provided Contr
24. These waveforms are filtered into low distortion sine wave power The inverter is controlled by an Application Specific Integrated Circuit ASIC This integrated circuit controls the precise synchronization amplitude and frequency of the output voltage In addition to the inverter efficiently supplying a regulated AC output from a DC source the out put isolation transformer acts as a second stage of isolation between the critical load bus and the commercial source power The inverter is configured to handle most critical load inrush surges It maintains output voltage Total Harmonic Distortion THD within specifications even when han dling non linear computer loads Refer to non linear load characteristics Output Regulation and Overload Performance The inverter is capable of sustaining full output voltage 2 of the nominal voltage for up to 150 overload at the output for as long as 30 seconds without reducing the output voltage It can also handle at least 125 of the rated current for up to 10 minutes and 104 of the rated current continuously The System Control Cabinet SCC will transfer the critical load to the bypass source if the overload exceeds the system capacity or the capacity of the modules on line The multi module overload capacity in terms of percent of rated full load current of modules on line is 140 for 20 seconds 108 for 10 minutes and 104 continuously Note that in normal operation the SCC will transfer the
25. and process control equipment Liebert Large UPS systems have a field proven record of experience and reliability through mil lions of hours of operation Our Quality Assurance program is certified to the requirements of ISO 9001 standards In addition Liebert Large UPS systems are either UL or ETL listed All equip ment and components are manufactured to applicable UL NEC NEMA ANSI IEEE and CSA standards and guidelines The keys to reliability in the design of the UPS system are conservatively rated components min imizing transfers to bypass understandable operator controls and easy access for maintenance and repair While the Liebert Large UPS systems incorporate these design factors we recognize that the reliability of UPS systems is also a function of proper installation operation and mainte nance Many failures of UPS systems properly matched to handle the load are due to improper installa tion Liebert Customer Service and Support thoroughly inspects the installation of every one of our units to make sure that it is installed properly and operates within performance specifica tions Another factor in reliability is proper operation The Series 600 UPS is designed with easy to follow prompted instructions to help prevent operator error Through proper operation and maintenance after the installation the inherent reliability of the system is maintained Figure 3 Multi Module 500 to 1000 kVA UPS 78 in
26. be displayed in these areas For more information and the corrective actions for these messages refer to Table 1 in this section Item 5 Module Status Messages Module On Line Module Off Line Module Summary Alarm Module Communication Failure Item 6 System Status Messages Static Switch Connected Static Switch Disconnected OK To Transfer Not OK To Transfer Item 7 Alarm Messages Load On Bypass Auto Retransfer Primed Manual Reset Retransfer Static Switch Unable Bypass Not Available Bypass Phase Sequence Wrong Control Power Fail Output Over Under Frequency Output Under Voltage Output Over Voltage Overload Overload Transfer Emergency Off Module Summary Alarm Battery Cycle Buffer Warning Operation 33 From module Master Menu move the highlighted cursor to MONITOR MIMIC DISPLAY Press the Select pad and the Monitor Mimic screen is displayed The Monitor Mimic display screen is a simplified block diagram of the UPS module and power connections This screen gives the operator an overall view of the power flow through the UPS module The screen consists of three major sections the input UPS metering section the load metering section and the status and alarm message areas The metered parameter values on the Monitor Mimic screen are updated at one second intervals Figure 17 Module Monitor Mimic Display Screen lO Liebert LOAD 270 KVA 217 KW ZA B 325A 325A 325A AP640 14 UPS IN
27. 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 The Series 600 dynamically adjusts the Battery Shutdown voltage based on battery characteris tics and the length of the current discharge event If a discharge event extends past 15 minutes i e the load is less than the full design rating the Battery Shutdown voltage setting is gradu ally and automatically increased to protect the batteries from deep discharge When the battery voltage decreases to a preset limit see 3 1 6 Alarm Limit Settings Screen the Low Battery Warning alarm message appears on the display screen This warns the operator that the battery voltage is approaching the Battery Shutdown level about five minutes of time remaining at full rated load NOTE Q The Low Battery alarm setting is designed to be useful at full load battery discharge rates Unlike the Battery Shutdown voltage the Low Battery alarm setting is not automatically increased and should not be relied upon as an indicator of battery time remaining Instead the operator should consult the
28. cannot change the system time from the control panel of a UPS module Figure 33 Time Screen 0 Liebert TIME 09 15 00 UP INCREASE VALUE DOWN DECREASE VALUE SELECT WALK THRU EXIT To reset the time do the following at the SCC 1 From the System Configuration screen press the Up or Down pad to move the highlighted cursor to Time 2 Press the Select pad The Time screen will appear Press the Select pad to move the arrow to the next digit to the right 4 When the arrow is on the digit to be changed press the Up or Down pad to increase or decrease the hour minute second number Press Select to set the value and move to the next digit 5 After the correct hour minute second has been set press the Select pad again to return to the System Configuration screen NOTE Precise Date and Time functions are required for accurate archiue and euent history purposes Both the Date and Time can be set from a remote terminal Refer to 3 1 14 Communication Interfaces Operation 51 Auto Dial This is a feature that automatically dials through a customer supplied Hayes compatible modem a preprogrammed telephone number up to 12 digits when specified alarm conditions occur within the UPS system The connection for the modem is at the SCC Automatic dial attempts to the first number are made at periodic intervals for 30 minutes If unanswered the system rolls over to the second number and repeats the
29. current has sub sided Verify that the DC Voltage bar begins to gradually move to the right Verify that the Output Voltage bar moves to the right after the DC Voltage bar has reached the 90 level Both bars should settle near the 100 line Select the Monitor Mimic display from the Master Menu and confirm that the module DC bus and AC output are at their proper operating voltages 96 Operation Step 4 When the Module DC Bus voltage is at 100 you can manually close the module battery disconnect MBD circuit breaker external to the UPS The Battery block in the Monitor Mimic Display indicates the battery voltage and charge current NOTE The battery charge current may increase quickly but then should slowly decrease A fully charged battery will require no more than 31 Amps of charge current If you are recovering from a battery shutdown or an input power failure the UPS rectifier will be recharging the battery Recharge current can be more than 100 Amps The maximum allowable recharge current for your unit will depend on the kVA rating and your factory set battery recharge current limit CAUTION Do not use equalize charging with valve regulated sealed cell batteries Refer to the battery manufacturer s manual for specific information about equalize charging Use the Monitor Mimic Display screen to determine the condition of the UPS module Press the Alarm Reset pad to clear the Alarm Messages Refer to Table
30. data can give a good indication of battery performance and expected life Each battery discharge cycle is put into one of four categories depending on the length of the event 0 30 Seconds Discharge 31 90 Seconds Discharge 91 240 Seconds Discharge Over 240 Seconds Discharge Each discharge cycle is sorted by time duration and tagged with the following system parameters System time and date Event Number Duration of cycle seconds Lowest DC Bus Voltage Highest DC Bus Current kW carried by the batteries at the start of cycle Battery Environment Ambient Temperature Up to 132 discharge cycle events can be stored at any given time When the buffer approaches its capacity a warning message 1s broadcast via terminal and modem communication channels and a complete listing of all records in order of occurrence is sent to the terminal port If a serial printer is attached to the terminal port the operator can print a hard copy of the report If a printer is not available a terminal emulation program can capture the report to disk for later review or printing Once the buffer is filled new data will replace the old on a First In First Out basis as new cycles occur To view this data select the BATTERY CYCLE MONITOR option on the System Status screen At the next screen see Figure 28 you can select either the Battery Cycle Monitoring Summary Screen or a screen showing detailed information on any one of the fou
31. is no interruption of power to the critical load When the AC input power is restored the battery equalize recharging circuit can be activated automatically or manually to increase the module rectifier charger output voltage to recharge the battery The battery equalize circuit may also be manually activated at any time during normal float constant voltage opera tion The equalizing time can be adjusted from 0 to 72 hours Figure 47 Battery Equalize Screen SECURITY ACCESS 6 Liebert DOWN CURSOR DOWN SELECT CHOOSE BATTERY EQUALIZE RECHARGING EQUALIZE TIME PERIOD hrs STOP EQUALIZE CHARGE MANUAL MODE AUTO MODE MANUAL RESET TO AUTO MODE CAUTION Do not use the Battery Equalize mode if you have valve regulated sealed cell maintenance free batteries Refer to your battery manufacturer s manual EQUALIZE TIME PERIOD This selection permits the operator to adjust the battery equalize time in one hour increments from 0 to 72 The battery equalize time must be greater than zero for the battery to begin recharging in both the AUTO and the MANUAL modes This period is set by use of the Up Down pads and Select pad When the battery is at full voltage not being recharged this selection reads EQUALIZE TIME PERIOD hrs When the battery is recharging this selection reads EQUALIZE TIME REMAINING hrs After the equalize recharge time has expired the indication returns to the prese
32. load discharge current external dry contact closure field supplied activates a reduced second level of the battery charge current limiting circuit for use with a back up genera tor These two levels of control regulate the amount of current that flows from the power source to the battery while the battery 1s recharging The battery charge current limit is factory set at 1096 for normal operation and at 196 for alternate power source recharge operation Battery Equalize Charge Circuit The battery equalize charge feature can be manually initiated or it can be programmed to operate automatically Either can be selected from the battery equalize screen displayed on the control panel The battery equalizing charge circuit increases the rectifier charger output voltage to charge the battery any time there is a power outage of 30 seconds or longer The equalizing voltage is slightly higher than the float voltage This decreases the time required to recharge the battery NOTE Do not use equalize charging with sealed cell batteries Consult the battery manufacturer s manual for specific information about equalize charging Theory of Operation 17 2 2 4 Inverter The inverter is a solid state device that converts the DC output of the rectifier charger or the bat tery to AC power Operation The inverter converts DC power from either the battery or the rectifier charger into three pulse width modulated six step waveforms
33. load to the bypass line Breaker 3 Operator Control Panel Refer to Figure 12 for controls available on this panel 4 Interlock Button Refer to Figure 13 on rear of Control Panel 5 Close Bypass Switch Refer to Figure 13 behind door 6 Bypass Reset Switch Refer to Figure 13 behind door 7 Static Switch Disconnects These manually operated switches disconnect the static switch from the bypass behind door line and from the critical load They are normally ON closed Turn them OFF open only to isolate disconnect the static switch for maintenance procedures 8 Reset Switches SW1 for Press these two switches before closing Static Switch Disconnects when Static Switch Disconnects recovering from a shutdown that includes loss of Control Power Green LED on behind door means Control Power is available Red LED on means Reset Switch needs to be pushed 26 Operation Figure 12 Series 600 UPS and SCC Operator Control Panels 7 6 10 11 2 3 4 5 13 14 Item Description Location Function 1 Display Screen This screen displays all vital UPS information in one convenient location All of the SCC and modules UPS monitoring functions and conditions are indicated here 2 Up This touch sensitive pad button is used to move the cursor up through various SCC and modules selections present on the display screen Note that all pads on this control panel
34. loca tion of the Bypass Input Breaker BIB Another option that may be present at your site is an alternate power source generator and an automatic transfer switch ATS Note that to totally isolate the UPS system from all power sources the Main Input switchgear and battery circuit breakers must also be opened N CAUTION Instructions for operating the Maintenance Bypass circuit breakers are on the Maintenance Bypass cabinet Make sure you understand the proper sequence before operating any circuit breaker Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load Figure 59 Load on Maintenance Bypass Two Breakers MBB System Controls Output mamme mm mmm mw c c rcu m m mme To Critical Load SCCB can accomodate up to 6 UPS modules Operation 89 Figure 60 Load on Maintenance Bypass Three Breakers T STANDBY GENERATOR AUTOMATIC _1 TRANSFER SWITCH System Controls Output ee mmi im E BS E To Critical Load MBO MBD o o SCCB can accomodate up to 6 UPS modules 90 Operation 3 3 Manual Procedures The Liebert Series 600 UPS system is designed to function while unattended by an operator The system control logic at the System Control Cabinet SCC monitors the performance of the UPS system the availability of power sources and the current required by the critical load The sy
35. 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 1 Load on Bypass Load on Bypass with the UPS not available is shown in Figure 49 The UPS system could be in this mode of operation during either initial start up or UPS system shutdown and isolation for maintenance Figure 49 Load on Bypass UPS Not Available hme ee ee gt eamimenmces System Controls Output mrmemstm wouwem mimimem memims smo To Critica Load SCCB can accomodate up to 6 UPS modules Operation 79 3 2 2 OK To Transfer The OK to Transfer status message will be displayed when the bypass line UPS system out put power are both available their voltage frequency and phase synchronization are matched within specifications and the Static Switch Discon
36. of the AC input cur rent is 1596 per second The input current walk in reduces the start up surge distortion effects on all other equipment connected to the same source and prolongs the service life of internal compo nents Input Current Inrush For 150 to 450 modules the maximum subcycle of inrush current due to the optional input isolation transformer is less than 50096 of the rated input current for the first 1 2 cycle Without the optional transformer inrush current is typically less than 2 3 times normal For 500 to 1000 kVA modules inrush is less than 800 of normal for the first 1 2 cycle The optional input filter limits inrush current to less than 45096 Input Power Factor The rated input power factor is no less than 0 81 lagging at the nominal input voltage and the full rated UPS load The optional input filter will improve the power factor to better than 0 91 lagging at full load Refer to drawings for your specific model 16 Theory of Operation 2 2 3 Battery Charging Circuit The UPS charging circuit is capable of recharging the battery plant to 9596 of full capacity within 10 times the discharge time Recharging the last 596 takes longer because of characteristics inher ent in the battery DC ripple voltage and current are limited to less than 2 RMS to preserve bat tery life during long term float charging while the UPS system is operating on utility source power Multiple UPS module rectifiers chargers
37. on Maintenance Bypass 3 If UPS bypass shutdown is required open the Bypass Input Breaker If the load is on Maintenance Bypass 1 Close the Bypass Input Breaker BIB or verify BIB is closed Note that UPS System Bypass circuit breaker motorized must also be closed 2 Close the Maintenance Isolation Breaker MIB 3 Open the Maintenance Bypass Breaker MBB Load is now on UPS System Bypass Operation 99 3 3 3 Shutdown Procedures System Shutdown Procedure Perform a System Shutdown Procedure when you want to remove power from the UPS system and System Control Cabinet SCC when required for maintenance or if you need to perform maintenance on a UPS module in a non redundant system Before performing any maintenance on your Liebert Series 600 UPS observe ALL of the WARN INGS in 4 0 Maintenance Use the SCC Monitor Mimic Display to determine the operating condition of the UPS system From the SCC Master Menu select the Shutdown Procedures screen Figure 64 SCC Shutdown Procedures Screen SELECT MASTEH MENU Liebert SHUTDOWN PROCEDURES If load is not already being supplied by the bypass line select the LOAD TRANSFER PROCEDURE screen and follow the instructions to transfer the load to bypass Go to the modules s and follow the module SHUTDOWN PROCEDURES Press the ALARM RESET button to clear alarms which are no longer active If necessary for maintenance purposes open the static switc
38. required for maintenance procedures Use the Shutdown Procedures screen when performing a manual System Shutdown Refer to 3 3 3 Shutdown Procedures Refer to 3 2 10 Maintenance Bypass Before performing any maintenance on your Liebert Series 600 UPS System observe ALL of the WARNINGS in 4 0 Maintenance WARNING LETHAL VOLTAGES ARE PRESENT WITHIN THIS SYSTEM EVEN WHEN IT IS NOT ON OR WHEN POWER IS NOT BEING SUPPLIED OBSERVE ALL CAUTIONS AND WARNINGS IN THIS MANUAL FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH DO NOT WORK ON OR OPERATE THIS EQUIPMENT UNLESS YOU ARE FULLY QUALIFIED TO DO SO NEVER WORK ALONE Figure 58 System Shutdown mom To memeus System Contrals Output ee ee ee ee ee ee ee mm ETET mm ne SCCB To Critical Load SCCB can accomodate up to 6 UPS modules 88 Operation 3 2 10 Maintenance Bypass Maintenance Bypass switchgear allows you to totally isolate the UPS system from all power sources while you maintain power to the critical load Your installation may have a Two Breaker or Three Breaker Maintenance Bypass or none at all The main difference between a Two Breaker and Three Breaker Maintenance Bypass is the
39. system if the overload con dition does not exceed the current versus time curve of overload capacity for either the SCC rating or for the number of modules on line Momentary overloads from 155 to 1000 of rated system SCC current can be supplied by puls ing the solid state static bypass switch for 40 milliseconds This provides current from the bypass line in parallel with current from the UPS system output By providing two power sources simul taneously high current can be supplied to the critical load with full output voltage regulation The critical load can be sustained through inrush currents and momentary faults without operat ing motorized circuit breakers If an overload situation exceeds 40 milliseconds the UPS system continues to supply power to the critical load if it remains within the current versus time curve of overload capacity If the system overload capacity is exceeded the UPS control logic at the SCC initiates an automatic transfer to the bypass line by operating the static bypass switch and the motorized system circuit breakers SBB and UPS Output Refer to 3 4 Automatic Operations Figure 52 Momentary Overload Through Static Bypass Switch An TETE ee ee eee TETE ee ee ee ee ee ee hmmm mamie System Controls Output mimm mini orm ee ee ee ey Critical Load MBD MBD MBD SCCB can accomodate up to 6 UPS modules 82 Operation 3 2 4 Input Power Failure Load
40. the beginning of the discharge event Calculated Time Remain ing 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 Discharging message on this screen Operation 63 Figure 44 Battery Time Screen Example 45 Minute Discharge SELECT MASTER MENU Low Battery Warning Calculated Time Hrs Min Total 00 45 Remain 0 01 Mac Soy BEN 417 ECO Battery Shutaoun 417 Rated Time Hrs Min Battery Charge 3 Total 00 25 Remain 0 00 LL ss L L Se 0 10 20 30 40 50 60 Time Minutes The Battery Time Remaining graph and the Calculated times are extremely helpful to the opera tor who has the discretionary authority to order load shedding activities The Series 600 automat ically 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 NOTE Q 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
41. the module battery breaker by simultaneously pressing the BATTERY TRIP and CONTROL ENABLE pushbuttons Manually open the input breaker by moving the handle to the OFF position du Liebert SHUTDOWN PROCEDURES Cont d Verify breaker status on the MONITOR MIMIC screen If necessary for maintenance purposes turn the control power switch fuse disconnect on some models to the OFF position Wait a minimum of two 2 minutes before attempting any other action Step 1 If the UPS module is on line simultaneously press the Output Trip and Control Enable pads Figure 12 This will open the UPS module output circuit breaker CB2 Figure 9 and Figure 10 Step 2 Open the module battery disconnect MBD circuit breaker by simultaneously pressing the Battery Trip and Control Enable pads Figure 12 Step 3 Manually open the UPS input circuit breaker by moving the handle to the OFF position Figure 9 and Figure 10 Return to the Monitor Mimic Display to verify status of the circuit breakers Press the Alarm Reset pad to clear alarm messages 102 Operation Step 4 If maintenance is required the UPS controls turn the Control Power switch to the OFF position Figure 9 and Figure 10 You may also want to open the Rectifier Input Breaker RIB external to the UPS cabinet N WARNING LETHAL VOLTAGES ARE PRESENT WITHIN THIS UNIT EVEN WHEN IT IS NOT ON OR WHEN UTILITY IS NOT BEING SUPPLIED OBSERVE ALL C
42. to the critical load Perform an orderly load shutdown before isolating power WARNING LETHAL VOLTAGES ARE PRESENT WITHIN THIS UNIT EVEN WHEN IT IS NOT ON OR WHEN UTILITY IS NOT BEING SUPPLIED OBSERVE ALL CAUTIONS AND WARNINGS IN THIS MANUAL FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH DO NOT WORK ON OR OPERATE THIS EQUIPMENT UNLESS YOU ARE FULLY QUALIFIED TO DO SO NEVER WORK ALONE Before performing any maintenance on your Liebert Series 600 UPS observe ALL of the WARN INGS in 4 0 Maintenance Operation 101 Module Shutdown Procedure Perform a Module Shutdown Procedure when you want to remove power from a UPS module when required for maintenance Before performing any maintenance on your Liebert Series 600 UPS observe ALL of the WARN INGS in 4 0 Maintenance Use the module Monitor Mimic Display to determine the operating condition of the UPS module From the module Master Menu select the Shutdown Procedures screen Note that this is a two page screen Figure 65 Module Shutdown Procedures Screen OWE Liebert SHUTDOWN PROCEDURES 1 Ifload can not be supported by the remaining modules when this module is taken off line go to the system control cabinet and select the LOAD TRANSFER PROCEDURES screen Follow the instructions ta transfer the load to bypass 2 Open the module output breaker by simultaneously pressing the OUTPUT TRIP and CONTROL ENABLE pushbuttons 3 Open
43. type system overloads which occur up to five select range is 0 to 5 times in 60 minutes are automatically returned to the UPS system for each event including the Nth overload A manually initiated retransfer from bypass is required for the N 1 overload o Theory of Operation 21 5 Manual Retransfers Manual retransfers may be initiated at any time provided no retransfer inhibition conditions are present 6 Retransfer Inhibited A retransfer automatic or manual from the bypass source to the UPS system shall be inhib ited if any of the following conditions exist a Manual and Automatic Retransfer Inhibitions 1 Bypass frequency exceeds 0 5 Hz of the nominal 2 UPS system to bypass voltage difference AV exceeds a predetermined percentage normally 5 3 System circuit breaker UPS output or SBB is inoperative 4 OKto Transfer signal from the control logic is not present 5 Not enough UPS modules are ON LINE to supply the connected critical load b Automatic Retransfer Inhibitions in addition to those above 1 The load transfer to bypass was not caused by a system overload 2 Excessive cyclical overloads within a one hour period 3 Retransfer conditions are not satisfied within 5 minutes of the initial transfer 2 2 6 Redundant Mode A multi module UPS system can be supplied with a back up redundant UPS module which is the typical configuration A redundant system includes one more module than the
44. 0 Liebert POWER PROTECTION Series 600 and 600T UPS Multi Module Three Phase 150 kVA to 1000 kVA 60 Hz Operation amp Maintenance Manual IMPORTANT SAFETY INSTRUCTIONS ee eee nn ees 1 ABOUT THIS MANUAL eee nh nh nn 2 1 0 INTRODUCTION 1 1 System D scripli0nic o 2 ul yaks SR E elec Pas tie Deter puq n PALO EDD 3 1 2 Reliability c toa de dae bet lins q IANS oe ha ER AY mahu nes a 6 1 3 Safety Precautions ass PER vU e a ere e ota S S eb el tm BQ 7 1 4 Modes Of Operation hone A yi Bab a UY PR EN EN 9 14 1 Normal Load on UPS 9 14 2 Inp t Power Eail te ie das er rere ee eee eso ers pde 9 1 43 oy u Pe s a rs eae i eoe ee ad 9 1 447 Overload c7 Sis Sac OESTE A dr e en Bee e RC Q uhuy ec na 9 4 5 Redundant ss 5 2 ese t e dete dud ta tere dta ur dels Re eget at dr 9 146 Bypass Internal o mec Re oh eee aed DATA REG e s ee TRU 9 1 4 7 Maintenance Bypass 9 1 48 OR Battery cox Me ST RES Men NR uM e RN PRESS ERAS RU 9 1 5 Operator Controls 1 52 sus ee e RW er YN er eth Garin ble a DER A Nes 10 1 6 4 6 09 5 Gea ur I ale hd acre ERI Nene etant eR e ntum E RUE IRE NT T 12 2 0 THEORY OF OPERATION 2 1 General Component Des
45. 0 Hz Technical Support U S A 1 800 222 5877 Outside the U S A 614 841 6755 U K 44 0 1793 553355 France 33 1 487 51 52 Germany 49 89 99 19 220 Italy 39 2 98250 1 Netherlands 00 31 475 503333 E mail upstech liebert com Website _http www liebert com Worldwide FAX 614 841 5471 tech support The Company Behind The Products With more than 500 000 installations around the globe Liebert is the world leader in computer protection systems Since its founding in 1965 Liebert has developed a complete range of support and protection systems for sensitive electronics Environmental systems close control air conditioning from 1 5 to 60 tons Power conditioning and UPS with power ranges from 250 to more than 1000 ntegrated systems that provide both environmental and power protection in a single flexible package Monitoring and control on site or remote from systems of any size or location Service and support through more than 100 service centers around the world and a 24 hour Customer Response Center While every precaution has been taken to ensure 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 O 1998 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert and the Liebert l
46. 0 grammes de bicarbonate de soude dans approximativement un gallon 4 litres d eau Le m lange de bicarbonate de soude devra tre ajout jusqu cc qu il n y ait plus apparence de reaction mousse Le liquide r siduel devra tre nettoy l eau et la surface concern e devra tre ass ch e Maintenance 113 Regular maintenance of the battery module is an absolute necessity Periodic inspections of bat tery and terminal voltages specific gravity and connection resistance should be made Strictly follow the procedures outlined in the battery manufacturer s manual Sealed cell maintenance free batteries do require periodic maintenance Though they do not require maintenance of electrolyte levels battery voltage and connection resistance checks should be made 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 increases charging voltage to maintain flooded type battery cells at full capacity NOTE Do not use equalize charging with sealed cell batteries Consult the battery manufacturer s manual for specific information about equalize charging The equalizing charge time period is adjustable from zero to 72 hours and can be initiated auto matically or manually Refer to 3 0 Operation Battery Voltage Record Float Voltage Nominal Voltage Ambient Temp Date Volts DC Volts DC
47. 1 for an explanation of any remaining alarm messages Call Liebert Customer Service and Support if you cannot clear the remaining alarm messages If no alarm messages are displayed the UPS module is now ready to provide filtered uninterrupt ible power to the critical bus Manually close the module output circuit breaker CB2 Figure 9 and Figure 10 to place this UPS module on line When all required UPS modules are on line return to the SCC to complete your UPS system start up Operation 97 3 3 2 Load Transfer Procedures Use the Monitor Mimic Display at the SCC to determine the operating condition of the UPS sys tem Press the Alarm Reset pad to clear the Alarm Messages Refer to Table 1 for an explana tion of any remaining alarm messages except Load On Bypass Call Liebert Customer Service and Support if you cannot clear the remaining alarm messages If the only alarm message displayed is Load On Bypass or no alarms you can perform a manual transfer of the load between the UPS module and the UPS bypass line Changing the load from the UPS system to the UPS bypass is called a transfer Changing the load from UPS bypass to the UPS system is called a retransfer Note that the UPS system control logic can initiate automatic load transfers and retransfers Refer to 3 4 Automatic Operations Press the Select pad to display the Master Menu on the LCD display Move the highlighted cur sor to Load Transfer Procedures using the U
48. 14 Theory of Operation 2 2 2 2 1 Detailed Component Descriptions Controls Hardware The Series 600 UPS Operator Interface Display System is designed to provide all of the informa tion that is required for the operation of each UPS cabinet the System Control Cabinet and each module The following is a list of the hardware features 1 The control logic performs automatic operations with minimal operator interface The limited number of manual controls are easy to use 2 Each Series 600 UPS cabinet is equipped with an easy to read back lighted 640 x 200 pixel liquid crystal display LCD screen It presents information in a way that is easy to understand at an eye level front panel location 3 The display is controlled by a dedicated microprocessor with a non volatile EPROM program and a battery backed event memory 4 The Series 600 System Control Cabinet SCC has communication ports terminal board connections for a Transmission of present status information to remote terminals via a resident auto dial communications program and an external modem This port also responds to inquiries of the UPS system status and history from the remote terminal b Reporting UPS system status and history information in response to inquiries from a local terminal no modem required c Reporting to a local monitor the information requested from the local terminal Reporting information to a Liebert SiteScan Central Monitoring System
49. AME BY USING RUBBER MATS SOME COMPONENTS WHEN THE CABINETS ARE NOT CONNECTED TO CHASSIS GROUND ANY CONTACT BETWEEN FLOATING CIRCUITS AND THE CHASSIS IS A LETHAL SHOCK HAZARD EXERCISE CAUTION THAT THE TEST INSTRUMENT EXTERIOR DOES NOT MAKE CONTACT EITHER PHYSICALLY OR ELECTRICALLY WITH EARTH GROUND ABOUT THIS MANUAL Welcome to the Liebert Series 600 Uninterruptible Power Supply UPS Operation and Maintenance Manual for a multi module system The Series 600 UPS is easy to operate and maintain Read this manual thoroughly before operating or performing maintenance on your Series 600 UPS system The manual is organized so that information can be found quickly Each major topic is separated by sections and the Table of Contents contains major headings within each section The names of the sections and their contents are described below 1 0 Introduction is a summary of the Series 600 UPS System It describes some of the unique features and benefits of the Series 600 as well as the design principles and standards that Liebert follows in the manufacture of each system A description of the Series 600 system and an overview of its functions are also included 2 0 Theory of Operation is an explanation of the major circuit groups of the Series 600 UPS This section is for individuals who want to know both the basics and the specifics of each major component The text explains how the UPS handles electrical disturbances and inter ru
50. AUTIONS AND WARNINGS IN THIS MANUAL FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH DO NOT WORK ON OR OPERATE THIS EQUIPMENT UNLESS YOU ARE FULLY QUALIFIED TO DO SO NEVER WORK ALONE Before performing any maintenance on your Liebert Series 600 UPS observe ALL of the WARN INGS in 4 0 Maintenance Local Emergency Modules Off LEMO The UPS controls at the SCC include an Emergency Module Off pad Figure 12 item 12 When this guarded pad is pressed the load is automatically transferred to the bypass line and the module output battery and input circuit breakers trip open to isolate and shut down all the UPS modules Control Power for indicators and alarms remains on Remote Emergency Power Off REPO The Remote Emergency Power Off control REPO is a switch located remotely from the UPS system It will normally be in the same room as the critical load equipment The Remote Emergency Power Off switch removes all power to the critical load When you trip the Remote Emergency Power Off switch all UPS circuit breakers are opened including the System Bypass circuit breaker SBB All power through the UPS is removed from the load You will still have power to the UPS controls and you may have power to the static switch Operation 103 3 4 3 4 1 Automatic Operations The Liebert Series 600 UPS system is designed to function while unattended by an operator The system control logic monitors the performance of t
51. Amps are calibrated only at the UPS modules CAUTION Meter calibrations are factory set and should not require adjustment Contact Liebert Customer Service and Support for meter calibration WARNING DO NOT ATTEMPT TO CALIBRATE METERS WITHOUT ADEQUATE TRAINING METER CALIBRATION REQUIRES SPECIAL TEST EQUIPMENT ACCESS TO TEST POINTS IN SENSITIVE CIRCUITRY AND EXPOSURE TO HAZARDOUS VOLTAGE Figure 46 Meter Calibration Screen LR UP_ CURSOR UP 8 Liebert DOWN CURSOR DOWN SELECT CHOOSE METER CALIBRATION EXIT D C VOLTS INPUT VOLTS PHASE A B D C AMPS INPUT VOLTS PHASE B C OUTPUT VOLTS PHASE A B INPUT VOLTS PHASE C A OUTPUT VOLTS PHASE B C INPUT AMPS PHASE A OUTPUT VOLTS PHASE C A INPUT AMPS PHASE B OUTPUT AMPS PHASE A INPUT AMPS PHASE C OUTPUT AMPS PHASE OUTPUT AMPS PHASE 66 Operation 3 1 12 Battery Equalize Screen Go to the Master Menu and move the highlighted cursor to BATTERY EQUALIZE Press the Select pad and the Battery Equalize screen is displayed The Battery Equalize screen enables the operator to adjust the battery equalize time It is also used to choose between auto and manual battery equalize recharging modes Note that AUTO MODE can be selected only from the System Control Cabinet SCC Selections made at the SCC override previous selections made at the UPS modules When the input utility power is interrupted the battery supplies DC power to the UPS module inverters so there
52. Battery Time screen or Present Status screen to see the Calculated Time Remaining based on actual usage during the discharge period If the battery discharges to the Battery Shutdown level represented by the lower line on the Bat tery Time screen the battery and input circuit breakers trip open and the UPS module is shut down This protects the battery from being damaged by an extended deep discharge 64 Operation Figure 45 Tolerance Range of Values for Calculated Battery Times Calculated Time Remaining 0 2 5 7 5 10 12 15 17 5 20 22 5 25 Elapsed Time Minutes Upper Limit Actual Lower Limit N CAUTION When battery shutdown occurs no power will be supplied to the critical load unless power is available through the bypass line from the utility source or from an engine generator set If you anticipate a battery shutdown and an engine generator set is not available either transfer the load to bypass if available or perform a controlled shutdown of the critical load If the Battery Time screen is displayed while the battery is not discharging it will display the present Battery Charge percentage and the results of the previous discharge event NOTE Q 1 During initial UPS start up the Battery Charge will display 100 even though actual state of charge may be slightly less It will normally take three to four days of operation to completely charge the battery After the battery is fully charged t
53. Blown SCR models Inverter Fault Transistorized models Low Battery Shutdown Overload Overload Shutdown Rectifier Fuse Blown Reverse Power Operation 55 3 1 6 Alarm Limit Settings Screen Go to the Master Menu and move the highlighted cursor to LIMIT SETTINGS Press the Select pad and the Limit Settings screen is displayed The Alarm Limit Settings screen has Security Access to enable an authorized Liebert field service engineer to adjust the UPS system alarm limit settings N CAUTION alarm limit settings are application matched and factory set They should not be changed casually Contact Liebert Customer Service and Support for changing the alarm limit settings Figure 37 Module Alarm Limit Settings Screen SECURITY ACCESS 6 Liebert DOWN CURSOR DOWN SELECT CHOOSE ALARM SETTINGS Overload Battery 96 DC Over Voltage VDC A VDC Battery Discharging VDC sans VDC Low Battery VDC VDC Battery Shutdown 15 minutes VDC 4 i sss VDC Upper Point 60 minutes VDC i zai VDC Battery Rating 100 KW 15min 5 KW 15min Battery Rating KW 45min KW 45min Low Link DC Voltages High Link DC Voltages nominal 180 cells nominal 240 cells 338 to 750 LL kVA 150 450 kVA 750 HL amp 1000 kVA Overload Alarm SCC and modules This alarm setting initiates an alarm message on the display screen warning the operator that the UPS system output current has exceeded the speci fied limit This condition
54. C design temperature without aerating Minimum Operating Temperature 0 Storage Temperature 20 C to 70 C Typical Battery Temperature Requirements Average annual temperature shall not exceed 27 C Peak temperature shall not exceed 43 C during any 24 hour period See battery manufacturer s recommendations Relative Humidity 0 to 95 without condensation Operating Elevation Sea level to 1219 meters 4000 ft without derating Storage Elevation Sea level to 12 192 meters 40 000 ft Audible Noise 75 dBA typical measured 5 feet from unit 69 dBA typical for 150 450 kVA units Derating for Higher Ambient Temperatures 91 at 45 C 82 at 50 C 73 at 55 C Consult your Liebert sales representative regarding applications in high ambient temperatures Special temperature sensors must be installed at the factory Derating for Higher Elevations 95 at 2000 meters 94 at 2200 meters 93 at 2400 meters 92 at 2600 meters 91 at 2800 meters 90 at 3000 meters NOTE This category of electronic equipment is agency rated for use in an atmosphere free of conductive particles Some industrial facilities may require a room air filtration system to keep the UPS free of excess moisture and contaminants The UPS system is designed to operate continuously at 40 C However design equipment life expectancy will be ex
55. CC current and if enough UPS modules are on line Manual Reset SCC A manual retransfer is required Either a system overload condition Retransfer has lasted more than 5 minutes or no more auto retransfer attempts are available Note that this alarm is only used if auto retransfer attempts are enabled Perform a manual retransfer if all necessary conditions are present Static Switch SCC S The UPS output is not synchronized to the bypass power source Unable The static bypass switch is disconnected or it has failed internally Emergency and overload transfer to the bypass source is not available Manually set the Static Switch Disconnects to ON closed if the static switch is disconnected If the alarm conditions are automatically corrected reset the alarm to clear it Contact Liebert Customer Service amp Support if the alarm stays on Bypass Not SCC The bypass power source voltage is not within specifications Available Check the bypass power source Bypass Phase SCC The power conductors on the bypass line are not wired to the UPS in Sequence Wrong the required sequence This alarm should appear only during initial start up or after a repair to the source power system Disconnect power from the bypass line and correct the wiring A Liebert Customer Service amp Support representative must be present during initial start up of your UPS System UPS SYSTEM Input Current MMU E At least one input phase differs from the a
56. ECTUOSITE PEUT ENTRAINER DES BLESSURES OU DES DOMMAGES SERIEUX A L EQUIPEMENT POUR ASSISTANCE APPELER LE DEPARTEMENT DE SERVICE A LA CLIENTELE DE LIEBERT DANGER Les accumulateurs plomb acide contiennent de la mati re comportant un certain risque Les accumulateurs doivent tre manipul s transport s et recycl s ou limin s en accord avec les lois f d rales provinciales et locales Parce que le plomb est une substance toxique les accumulateurs plomb acide devraient etre recycl s plut t qu limin s Il ne faut pas br l le ou les accumulateurs L accumulateur pourrait alors explos Il ne faut pas ouvrir ou endommager le ou les accumulateurs L lectrolyte qui pourrait s en chapper est dommageable pour la peau et les yeux Un accumulateur repr sente un risque de choc lectrique et de haut courant de court circuit Lorsque des accumulateurs sont manipules les mesures pr ventives suivantes devraient tre observ es 1 Retirer toutes montre bagues ou autres objets m talliques 2 Utiliser des outils avec manchon isol 3 Porter des gants et des bottes de caoutchouc 4 Ne pas d poser les outils ou les pi ces m talliques sur le dessus des accumulateurs 5 Interrompre la source de charge avant de raccorder ou de d brancher les bornes de la batterie d accumulateurs 6 D terminer si l accumulateur est mis la terre par erreur Si oui d faire cette mise la terre Tout contact avec un accumula
57. ERY TIME modules only This graph displays the projected battery voltage drop caused by a battery discharge over time During a period of battery discharge the Series 600 calculates the battery time remain ing based on battery rating initial battery condition and actual connected load The UPS con tinues to update and display both rated theoretical and calculated time every 6 seconds This enables the operator to immediately see the effects of load shedding on time remaining and to accurately assess his power resources METER CALIBRATION This security access screen enables an authorized Liebert field service engineer to adjust and calibrate the UPS metered functions The operator can view but should not change any of the settings BATTERY EQUALIZE The battery equalize screen lets the operator change the battery equalize recharging mode from manual to automatic and to observe or change the equalize time Battery equalize charge voltage is higher than battery float constant charge voltage CUSTOMER ALARM DEFINITIONS SCC only This optional screen allows the operator to define alarms for conditions external to the UPS battery or switchgear NOTE Do not use battery equalize charging with sealed cell batteries Refer to the battery manufacturer s manual for specific information about equalize charging Operation 31 3 1 2 Monitor Mimic Display Screen From SCC Master Menu move the highlighted cursor to MONITOR MIMIC D
58. FAIL status message is as important as an alarm Failure message Refer to 3 1 13 Alarm and Status Messages Battery Cycle D The optional Battery Cycle Monitor can retain information about the Buffer Warning last 132 battery discharge events When the storage buffer approaches its capacity this warning message is broadcast via terminal and modem communication channels and a complete listing of all records is sent to the terminal port The message clears after 30 seconds Table 1 Abbreviations D auto dial L latches E reports only R remote F freezes S summary D auto dial initiated by Auto Transfer to Bypass if load is on UPS when alarm occurs D auto dial initiated through Module 1 6 off line Operation 73 Table 1 Alarm Messages Meaning and Corrective Action continued Alarm Message Cabinet Location UPS SYSTEM Cont d Special Functions Meaning and Corrective Action in Brackets Hardware Shutdown MMU D At least one of the following alarm conditions is present Inverter Fuse Blown SCR models Inverter Fault Transistorized models Rectifier Fuse Blown Reverse Power Overload Shutdown logic power supply failure or inverter output symmetry failure The UPS module is taken off line and is shut down Contact Liebert Customer Service amp Support at once Do not attempt to reset the circuit breakers Emergency Off SCC MMU D L S The E
59. ID 92 3 3 2 Load Transfer Procedures 98 3 3 3 Shutdown Procedures 100 Automate Operations s zesin Leda e ERR e EP Cetus duced 104 3 4 1 Overloads Without Transfer 104 3 4 2 Automatic Transfers to Bypass 105 3 4 8 Automatic Retransfers to UPS 105 3 4 4 Automatic Module Off Line 106 3 4 5 Automatic Emergency Modules 106 MAINTENANCE Safety Precautions exa uan DER a rete ears dq 107 Liebert Customer Service and 109 Routine Maintenance 110 43 1 lt R Cord L08 mo Rc a tele ne nn a TCR nn ere are a dat eee 110 413 27 SAM HATES ems iss dent PA ca asec o rete Aka a delete 110 4 9 8 Battery Maintenance 111 4 3 4 Torque Requirements 116 Detection of Trouble e e e le 116 Reporting a Probl m 2r Ee VER e Dr e HOP PAG CERIS 117 Corrective Actions ccc cc ce ee eee ha 117 Recommended Test 117 SPECIFICATION
60. ISPLAY Press the Select pad and the Monitor Mimic screen is displayed The Monitor Mimic display screen is a simplified block diagram of the UPS system This screen gives the operator an overall view of the power flow through the UPS system The screen consists of three major sections the input UPS metering section the load metering section and the status and alarm message areas The metered parameter values on the Monitor Mimic screen are updated at one second intervals Figure 16 SCC Monitor Mimic Display Screen 1 Liebert 4 BYPASS INPUT ZA B ZB C SC A 480V 480V 480V 627 KVA 502 KW 3 ZA C 755A 755 755A LOAD s SCCB 1600 UPS INPUT PWR 3 OF 3 MODULES ay piss pi OUTPUT VOLTAGE CONNECTED OBC SCA 480V 480 480V 60 0 Hz REDUNDANT MOD 1 ON LINE MOD 2 ON LINE MOD 3 ONLINE OK to Transfer Static Switch Connected Input Metering Displays NOTE All voltage readings are phase to phase measurements A B B C and C A All current readings are phase measurements A and Item 1 Bypass Input This block displays the bypass input voltage and the bypass input fre quency The System Bypass Breaker is shown to the right of this block The status of the circuit breaker is illustrated as open or closed Item 2 UPS Input Pwr This block displays the input voltage to the UPS modules Output Metering Displays Item 3 UPS Ratings The SCC current rating is specified at the t
61. O OF AT LEAST 80 dB 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 108 Maintenance 42 Liebert Customer Service and Support Start up UPS maintenance battery maintenance and training programs are available for the Series 600 UPS through your Liebert sales representative Professional Start Up UPS Start Up Liebert s Customer Engineers perform a thorough non powered inspection of the units and will then conduct a complete electrical checkout which includes calibrating all compo nents to published specifications The battery installation is also inspected and placed on an ini tialization charge to ensure cell equalization Customer Operation training will be conducted during battery charge time Load Bank Testing and Full Site Acceptance Testing are additional services that can be per formed during a UPS Start Up One Preventive Maintenance Service Call can be added to the ini tial UPS Start Up Agreement Battery Installation Start Up When purchased with a UPS Start Up this Agreement pro vides consistent professional service for your entire UPS system This one source approach avoids conflicts that may occur during a multisource installation Note that Liebert requires a mandatory install
62. P aed 87 System Shutdown ter eee ek Butter s eut 88 Load on Maintenance Bypass Two Breakers 89 Load on Maintenance Bypass Three Breakers 90 SCC Start Up Procedures Screen 94 Module Start Up Procedures Screen 96 Load Transfer Procedures Screen 98 SCC Shutdown Procedures Screen 100 Module Shutdown Procedures 102 Current Versus Time Curve of Overload Capacity 104 Output Power Envelope for 0 8 pf Rated Units 118 TABLES Alarm Messages Meaning and Corrective Action 71 Alarm Messages Summary 75 Series 600 Terminal Commands 78 Torque Specifications Unless Otherwise Labeled 116 Recommended Test Equipment and Tools 117 IMPORTANT SAFETY INSTRUCTIONS Save These Instructions This manual contains important instructions that should be followed during installation and maintenance of your Series 600 UPS and bat
63. PS Also read the battery manufacturer s manual before working on or near the battery Under typical operation and with all UPS doors closed only normal safety precautions are neces sary The area around the UPS system and Battery should be kept free from puddles of water excess moisture or debris Special safety precautions are required for procedures involving handling installation and main tenance of the UPS system or the battery Observe precautions in the separate Installation Manual before handling or installing the UPS system Observe precautions in 4 0 Mainte nance before as well as during performance of all maintenance procedures Observe all battery safety precautions in 4 0 Maintenance before working on or near the battery This equipment contains several circuits that are energized with high voltage Only test equipment designated for troubleshooting should be used This is particularly true for oscillo scopes Always check with an AC and DC voltmeter to ensure safety before making contact or using tools Even when the power is turned Off dangerously high potentials may exist at the capacitor banks Observe all battery precautions when near the battery for any reason 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 ins
64. PS modules Operation 83 3 2 5 Module Off Line A multi module UPS system can be supplied with a back up redundant UPS module which is the typical configuration A redundant system includes one more module than the number required to supply the critical load A redundant system operates in the redundant mode if all modules are ON LINE Note that the UPS system can also operate in the redundant mode with one module OFF LINE if the critical load is reduced so that not all ON LINE modules are required The UPS modules share the load and the critical load will remain on the UPS system if any one of the modules is disconnected goes OFF LINE for maintenance or because of an inter nal fault The system control logic monitors the connected critical load and the number of UPS modules ON LINE If the UPS system is operating in the redundant mode the REDUNDANT status message will be displayed at the System Control Cabinet SCC If the UPS system is operating in the non redundant mode redundant module is OFF LINE or was not included in the system configura tion the NON REDUNDANT status message is displayed at the SCC In the Non Redundant mode the critical load will be transferred to bypass if any UPS module goes OFF LINE and you must transfer the load to bypass in order to perform maintenance on any UPS module Figure 54 One Module Off Line Load on UPS ee ee ee ee 1 ee ee ELEELE ETETETT CETELE oe ae ee System Controls
65. PS systems that may be present on one site Number of Modules in System This shows the total number of modules Operation 49 Date This is the system s real time date setting The system control program sends to each module the date entered at the System Control Cabinet SCC You cannot change the system date from the control panel of a UPS module Figure 32 Date Screen 6 Liebert DATE UP INCREASE VALUE DOWN DECREASE VALUE SELECT WALK THRU EXIT reset the date do the following at the SCC 1 e From the System Configuration screen press the Up or Down pad to move the highlighted cursor to DATE Press the Select pad The Date screen will appear Press the Select pad to move the arrow to the next digit to the right When the arrow 1s on the digit to be changed press the Up pad to increase the number or the Down pad to decrease it Press Select to set the value and move to the next digit After the correct month day year has been set press the Select pad again to return to the System Configuration screen NOTE Precise Date and Time functions are required for accurate archive and event history purposes Both the Date and Time can be set from a remote terminal Refer to 3 1 14 Communication Interfaces 50 Operation Time This is the system s real time clock The system control program sends to each module the time entered at the System Control Cabinet SCC You
66. PUT _ RATED 338 KVA os pie pe OUTPUT VOLTAGE 350A 350A 350A ZA B ZB C SCA 480V 480V 480V 60 0 Hz BATTERY VOLTS 405 AMPS 15 CHARG Input Metering Displays NOTE All voltage readings are phase to phase measurements A B B C and C A All current readings are phase measurements A and Item 1 UPS Input Pwr This block displays the UPS module input voltage and current The Module Input breaker is shown to the right of this block The status of the circuit breaker is illus trated as open or closed Item 2 Battery The battery block displays the DC bus voltage and the charge or discharge cur rent to or from the battery This block reads MODULE DC BUS when the battery circuit breaker is open and BATTERY when the battery circuit breaker is closed during normal operation This block reads BATTERY EQUALIZE when the battery equalize charge voltage is used to recharge the battery The Module Battery Disconnect MBD is shown to the right of this block The status of the circuit breaker is illustrated as open or closed Output Metering Displays Item 3 UPS Ratings The module part number and kVA rating are specified at the top of this block The UPS output voltage and frequency are also displayed in this block The Module Output breaker is shown to the right of this block The status of the circuit breaker is illustrated as open or closed Item 4 Load This block displays the module output power to the critical
67. REQUENCY 60 0 OUTPUT VOLTS 480 480 480 OUTPUT AMPS 325 325 325 BATTERY VOLTS 360 OUTPUT VOLTS 480 480 480 OUPUT AMPS 325 325 325 BATTERY AMPS 645 INPUT VOLTS 0 0 0 INPUT AMPS 0 0 0 UP NEXT FRAME OUPUT VOLTS 480 480 OUTPUT AMPS DOWN PREVIOUS FRAME LOAD KVA SELECT EXIT Module Operation 45 The alarm conditions that cause the History Status buffer to stop gathering new data are SCC Module Auto Transfer to Bypass DC Cap Fuse Blown Output Over Voltage DC Over Voltage Shutdown Output Under Voltage Inverter Fuse Blown SCR models Overload Transfer Inverter Fault Transistor models Low Battery Shutdown Overload Shutdown Over Temperature Timeout Rectifier Fuse Blown Reverse Power Note that the Emergency Off alarm will also freeze the SCC History Status buffer with the Auto Transfer to Bypass alarm if the load is on the UPS system when the alarm condition occurs The History Status buffer does not resume collecting new frames until the fault is cleared and the Alarm Reset pad is pressed for 5 seconds 46 Operation System Status The System Status screen displays the module Total Operating Hours Enable Backlight Lan guage Selection and the Battery Cycle Monitor Battery Cycle Monitor Module Only Selecting the Battery Cycle Monitor gives you access to detailed information about the module s most recent battery discharge events Periodic review of this
68. S AND RATINGS Rating e g Set VIS e E MAT Ek 118 Environmental Conditions RR EAR E E ee 119 Adjustments rto eere eon date memes ee SES gta acest BAP eed wale ner oe 120 Battery Op ration eei P eR ba rp Rebus ku PRA cati 120 Electrical Specifications es 121 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 86 Figure 37 Figure 88 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 FIGURES Multi Module 150 and 225 kVA UPS Multi Module 300 to 450 UPS Multi Module 500 to 1000 UPS System Control Cabinets SCCs hr qd SCC Controls and Display Screen with Example of the Monitor Mimic Screen Module Controls and Display Screen with Example of the Monitor Mimic Screen UPS Module Block Diagram
69. UPS modules the Input Amps bars continue to indicate the percent of the design input current to the UPS module rectifier If any Input Amps bar differs from the average bar length by more than 10 call Liebert Customer Service and Support Operation 41 3 1 4 Status Reports Screens Go to the Master Menu and move the highlighted cursor to STATUS REPORTS Press the Select button and the Status Reports screen is displayed The Status Report screen is divided into four sub menu reports PRESENT STATUS EVENT HISTORY HISTORY STATUS and SYSTEM STATUS To look at any of the reports do the following 1 From the Status Reports screen press the Up or Down pad to move the highlighted cursor to the desired selection Press the Select pad to view the desired report page Use the Up and Down pads to move through a report that includes several screens frames Press the Select pad to exit the report To return to the Master Menu return to EXIT and press the Select pad OURS cm qe Each report screen includes the date time and a frame number The frame number indicates the relationship sequence of a 4 millisecond time segment The SCC and each module generate their own frame numbers independently The clock in each module is synchronized to the SCC clock NOTE Each of the four Status Reports can be displayed on a remote terminal Refer to 3 1 14 Communication Interfaces The System Status screen shows Total Operating Hours a
70. a remote terminal or a personal computer equipped with a modem and communications program See 3 1 14 Communication Interfaces for more information NOTE This information is applicable to systems with separate batteries for each module If the modules share a common battery select one module to do the monitoring and disregard the other s Figure 30 Typical Data on Discharge Cycles of 91 to 240 Seconds Duration During the Recording Period fo Liebert UP CURSOR UP leber DOWN CURSOR DOWN Total 91 240 sec Cycl 5 SELECT CHOOSE Event Date Time Duration Min Voit Max Amp Start KW Start Temp 15 42 95 10 31 235 477 110 70 68 12 3 25 95 20 21 98 479 97 37 65 9 3 13 95 7 35 139 467 173 69 67 5 2 07 95 17 22 199 478 95 40 70 11 24 94 12 33 95 477 83 39 69 48 Operation 3 1 5 System Configuration Screens Go to the Master Menu and move the highlighted cursor to SYSTEM CONFIGURATION Press the Select pad and the System Configuration screen is displayed The System Configuration screen lists parameters that can be changed to adjust the personality of your UPS modules and the SCC to your site requirements Some of the information displayed is factory set and should only be changed by Liebert Customer Service and Support Parameters that should be adjusted by the user include date time auto dial number and modem baud rate The System Configuration screen is one of the displays that has contro
71. an depending on external protection devices The fuses are in the circuit to protect the critical bus distribution equipment against catastrophic faults The static switch SCRs are over sized to easily handle any current surges that may blow the fuses Shorted SCR Monitoring The static bypass system has redundant shorted SCR sensing circuits and disconnects This will prevent UPS output power backfeed to the distribution system even if two component failures exist simultaneously If a shorted SCR is detected the static bypass switch is isolated and annun ciated at the SCC control panel and the critical load remains on UPS output power Theory of Operation 19 Static Switch Isolation The motor operated system bypass circuit breaker SBB wired in parallel with the static switch automatically closes within 200 milliseconds after the load is transferred to the bypass power source removing the static switch from the power flow Also if required for maintenance the static switch can be isolated from the bypass line by open ing to the OFF position the Static Switch Disconnects Pulsed Parallel Operation When an overload condition such as magnetic inrush current or a branch load circuit fault exceeds 155 180 of the SCC current rating the static bypass switch pulses on for 40 millisec onds This allows up to 1000 rated full load current from the bypass line to clear the overload without closing the bypass circuit breaker a Lie
72. ansfer of the critical load from the bypass source to the UPS system 1 The number of Auto Rexfer Attempts selected must be greater than zero 0 If zero 0 1s selected no automatic retransfers will occur 2 Critical load was initially transferred to the bypass source due to a system overload only A manually initiated retransfer from bypass is required if the critical load exceeded the capacity of the modules on line or if a UPS fault occurred 3 Overload has since dropped below 10096 of the rated SCC current Enough UPS modules are on line to supply the critical load 5 OKto Transfer signal received from the control logic for at least 10 seconds within 5 minutes of the system overload transfer A manually initiated retransfer from bypass is required for overloads lasting 5 minutes or more 6 Cyclic type overloads which occur up to five select range is 0 to 5 times in 60 minutes are automatically returned to the UPS system for each event including the Nth overload manually initiated retransfer from bypass is required for the N 1 overload Operation 105 3 4 4 Automatic Module Off Line 3 4 5 For specified UPS module faults the control logic will initiate an automatic isolation and shut down of the UPS module In the Module Off Line mode the output battery MBD and input cir cuit breakers are open If the UPS system was operating in the redundant mode when the module was taken off line the critical l
73. ass line step 2 on the screen will instruct you to press the UPS and Con trol Enable buttons to retransfer the load from the bypass line to the UPS system 58 Operation 3 1 8 Start Up Procedures Screen From the SCC Master Menu move the highlighted cursor to START UP PROCEDURES Press the Select pad and the SCC Start Up Procedures screen is displayed This screen contains the steps you must follow to start up the UPS system The instructions are listed so you can review them prior to performing the start up Figure 39 SCC Start Up Procedures Screen y 0 Liebert START UP PROCEDURES 1 Wait approximately two 2 minutes before attempting any other action 2 Select SYSTEM CONFIGURATION screen to verify that the correct model number is displayed 3 Gotothe modules s and follow the module STARTUP PROCEDURES 4 Select MONITOR MIMIC screen verify that the output voltages are at the proper nominal ievel and correct number of modules online is displayed 5 if the bypass or static switch breakers are open refer to Start up Procedures inthe UPS manual for instructions on closing these breakers 6 System is now ready to assume load Select LOAD TRANSFER PROCEDURES screen for this procedure Prior to this procedure supply power to the critical load through the bypass line Start up each UPS module according to the module start up procedures You can then transfer the load from bypas
74. ation inspection for all batteries not installed by Liebert Customer Engineers Battery IEEE Certification Inspection The Battery Specialist will perform a detailed inspec tion of the entire battery system to ensure it meets current IEEE standards Maintenance Agreements UPS Standard Full Service Agreement This Agreement offers a total service package for UPS systems This includes two scheduled Preventive Maintenance P M Service Calls per year It also covers all Remedial and Corrective Maintenance visits consisting of the diagnosis and cor rection of product malfunctions and repairs and parts Customer Engineers will be available to the Customer 24 hours a day 7 days a week This agreement also includes one Infra Red Scanning visit A full Thermographic Survey is offered as an additional service UPS Preventive Maintenance Service One Preventive Maintenance P M Service Call will be scheduled and performed at the customer s convenience During a P M visit the Customer Engineer will conduct a thorough non powered inspection Then the powered inspection will include a complete electrical checkout and calibration of all components to specifications Battery Basic Service Agreement This Agreement provides two for sealed cells or four for flooded cells visits per year During these visits the entire battery system will be inspected and checked against factory specifications The Battery Specialist will clean add water ad
75. atus messages may appear in the load block 1 N OF X MODULES CONNECTED The number N is the number of UPS modules ON LINE This means the module output circuit breaker is closed X is the number of UPS modules in the system connected to this SCC This number is set from the System Configuration screen REDUNDANT The capacity of the UPS modules ON LINE is sufficient to supply the critical load even if one module is taken OFF LINE The critical load will remain on the UPS system if one module goes OFF LINE NON REDUNDANT The critical load will be transferred to bypass if one module goes OFF LINE and you must transfer the load to bypass in order to perform maintenance on any UPS module TIME TO OVERLOAD TRANSFER During an overload condition the time remaining before transfer in seconds is displayed at the bottom of the load block At each Module MMU the message is Time to Overload Shutdown Operation 69 Alarm Messages The alarm message area displays the alarm conditions that are present within the UPS system Alarm messages are displayed in flashing reverse video During normal operation no alarm mes sages should be present Up to four messages are displayed To see if any additional alarm condi tions are present in the UPS system display the Present Status screen on the control panel Table 1 is a complete list of all alarm messages and corrective actions if any The first column lists the alarm message with related a
76. bert design exclusive The bypass source is in parallel with the UPS system permitting the bypass source to carry the initial overload current If the overload clears before 40 milliseconds a load transfer to bypass is not made If the overload condition exceeds the SCC capacity the automatic transfer is made maintaining the load voltage within the specified limits This pulsed static switch operation reduces nuisance operation of motor operated circuit breakers for such short term conditions Load Transfers Transfers to transfer or from retransfer the bypass may be performed automatically or manu ally in a make before break MBB sequence This is accomplished through the overlapping oper ation of the UPS output and the system bypass power switching devices Manual load transfers and retransfers are initiated by the operator from the System Control Cab inet SCC In a manual operation or an automatic retransfer the two motorized circuit breakers UPS out put and system bypass SBB are both closed simultaneously for a short period of time overlap Automatic transfers are initiated by the SCC system control logic when an overload is beyond the specified capabilities of the UPS system or when a fault occurs within a non redundant UPS mod ule An automatic retransfer is initiated if this function is enabled and if system conditions for a retransfer are present In an automatic transfer the circuit breakers do not overlap b
77. can share a common battery plant if that configuration is preferred for your application Operation After Discharge When commercial power is interrupted the battery continues to supply DC power to the inverter without interruption to the critical load If the AC source power is restored before the battery has fully discharged the rectifier automatically restarts and resumes carrying the inverter and bat tery recharge load requirements Operation After End of Discharge The battery time screen displayed on the control panel enables you to estimate when battery shutdown will occur You will have enough time to energize an alternate AC power source or to initiate an orderly shutdown of the critical load If the battery plant discharges to the shutdown point during an outage the UPS automatically disconnects the load the AC input and the bat tery After AC input power is restored the rectifier can be manually restarted by the user Battery Disconnect The module battery disconnect MBD circuit breaker is used to isolate the UPS module from the battery during maintenance and to automatically disconnect the battery from the inverter at the end of battery discharge The MBD circuit breaker can be opened or tripped automatically from the control panel or manually It must be closed manually Battery Charge Current Limiting The battery recharge current after a battery discharge is limited to between 1 and 2596 adjust able of the full
78. ch Liebert Series 600 UPS cabinet is equipped with a microprocessor based Operator Control Panel and Display Screen and System Control Panel designed for convenient and reliable opera tion The System Control Cabinet SCC performs different functions than the UPS modules Each cabinet has the controls and displays required to operate and monitor its functions The locations of operator controls are shown in Figure 9 through Figure 13 The front location of the control panel enables the user to quickly identify the current status of the UPS system and to perform most of the manual operations The operator display screen is driven by an easy to follow menu prompted software program Features The Series 600 interface display system enables the operator to easily perform the following Obtain a quick indication of operational status Is the critical bus OK Is the UPS system OK Which UPS modules are available Is the battery available Is the bypass line available Monitor the power flow through the UPS system and monitor all meter readings Is the critical load being supplied power from the UPS system or bypass Are input battery and output voltage frequency and current readings at nominal levels How much battery time is still available during an outage Is the battery recharging after discharge Execute operational procedures Perform critical bus transfer retransfer between the UPS system and the bypass line Sta
79. cription of the controls and indicators located on the Operator Control Panel Theory of Operation 15 2 2 2 Rectifier Charger The UPS module rectifier charger consists of an input circuit breaker isolation transformer optional on 150 to 450 models AC current limiting circuit battery equalize charge circuit DC filter battery charge current limiting circuit and bridge rectifiers Operation The rectifier charger converts the AC input power to DC power This conversion is accomplished by 3 phase bridge rectifiers using SCRs All phases are individually fused One bridge is con nected to each secondary winding of the input isolation transformer For 500 to 1000 mod ules input current THD is less than 9 at full load which may be reduced to less than 496 with optional filter For 150 to 450 modules input current THD is less than 80 at full load which may be reduced to 7 with optional filter The filtered output of the rectifier charger provides regulated DC power to drive the inverter and charge the battery Input Circuit Breaker The input circuit breaker CB1 is sized to allow enough current to recharge the battery and sup ply a full rated load at the same time The circuit breaker contains a thermal magnetic trip mech anism and an undervoltage release that interrupts power preventing damage to the system if there is an internal AC over current condition or a short circuit This circuit breaker m
80. criptions 13 2 2 Detailed Component Descriptions 15 2 2 1 Controls ou ee Ba obe d eerte OP Rm e Da st e aa 15 2 2 2 Rectifier Charget ovs ot ese e RED eMe de een ue m 16 2 2 3 Battery Charging Circuit 0 0 a ccc eese ONU hh sh n 17 2 24 MAVE Er in uu e rete deren rl aree Re SOR rene Sa d ee ERU td 18 2 20 57 Statia BYPASS 0 5 voc SMS ER eeu EE uU eR Eq bes Web b d SURE 19 2 2 06 RedundantMod me nea RIA RA IR eat tente EE e der 22 3 0 OPERATION 3 1 Display Screen and Operator Controls 23 SLI Master Menu Sereen i resa a a RER vig adea te RN us 30 3 1 2 Monitor Mimic Display Screen 32 3 1 3 Walk In Display Screen 41 3 1 4 Status Reports Screens o ur prp e epe EE epe 42 3 1 5 System Configuration Screens 49 3 1 6 Alarm Limit Settings 56 3 1 7 Load Transfer Procedures 2 58 3 1 8 Start Up Procedures Screen 59 3 1 9 Shutdown Procedures Screen 61 3 1 10 Battery Time Screen Module Only 63 3
81. d in the battery manufacturer s maintenance manual Maintenance 115 4 3 4 Torque Requirements All electrical connections must be tight Table 4 provides the torque values for the connections in the UPS NOTE Refer to battery manufacturer s manual for the proper torque values required for the battery Table 4 Torque Specifications Unless Otherwise Labeled Nut and Bolt Combinations Bol Grade 2 Electrical Connections olt Standard with Belleville Washers Shaft Size Lb in N m Lb in N m 1 4 53 6 0 46 5 2 5 16 107 12 60 6 8 3 8 192 22 95 11 1 2 428 48 256 29 Circuit Breakers With Compression Lugs For Power Wiring Terminal Block Compression Lugs For Control Wiring AWG Wire Current Size or Rating Lb in N m Range Lb in N m 400 1200 300 34 22 14 3 5 to 5 3 0 4 to 0 6 Amps 4 4 Detection of Trouble There is no practical way to anticipate an impending malfunction It is important that the opera tor check the instrument readings if abnormal equipment performance is suspected Items to check 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 Ifthe UPS has not operated on battery power during the last 10 h
82. dures Figure 56 Emergency Modules Off s m ee ee ee ee 1 1 oe ee oe ee ee ee ee mem mr ee ee re re er To Critical Load SCCB can accomodate up to 6 UPS modules 86 Operation 3 2 8 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 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 Typi cally the REPO circuit also opens the circuit breakers that provide power to the bypass lines and the UPS controls Refer to 3 3 3 Shutdown Procedures Figure 57 Emergency Power Off O To Critical Load MBD MBD MBD O O O SCCB can accomodate up to 6 UPS modules Operation 87 3 2 9 System Shutdown Perform a System Shutdown procedure when you must disconnect the UPS system components from all power sources when
83. e UPS and receive system status and historical information on discharge events You can place the call from either a remote terminal or a personal computer with a communications program Follow the instructions for your terminal or your communications program to call the UPS When you make connection the UPS will send you the greeting Hello you are connected to a Series 600 At this point the UPS will respond to your specific requests for information according to Table 3 1 Hayes is a Registered Trademark of Hayes Microcomputer Products Inc 76 Operation For example to see copy of information the Present Status Report screen from the SCC see Present Status in this manual press the A key either upper or lower case can be used for all except the date and time commands and then the Enter key The Series 600 will send the data which will be displayed on your screen To see the Present Status Report screen from say Module 1 type Al and press the Enter key Please note that the data on the screen is like a snap shot the status of the UPS at the moment you requested the information The information sent remotely is not updated although you can repeat the process at intervals to request the present information Some screens like the Battery Cycle Monitor information contain data that you may wish to import into a spreadsheet for further calculations To put this data into a usable format use the screen capture fea
84. e UPS module is taken off line and the input and battery circuit breakers trip open Contact Liebert Customer Service amp Support at once A fault may have occurred within the UPS Do not attempt to reset the circuit breaker BYPASS Load On Bypass SCC R The critical load is being supplied power from the bypass line and is therefore exposed to utility power disturbances Clear all of the alarms before attempting to retransfer the load from the bypass line to the UPS Table 1 Abbreviations D auto dial L latches E reports only R remote F freezes S summary D auto dial initiated by Auto Transfer to Bypass if load is on UPS when alarm occurs D auto dial initiated through Module N 1 6 off line Operation 71 Table 1 Alarm Messages Meaning and Corrective Action continued Alarm Cabinet Special Meaning and Message Location Functions Corrective Action in Brackets BYPASS Cont d Auto Transfer to SCC D E F The critical load has been automatically transferred to the bypass Bypass line Use the History Status screen to determine the cause for the transfer Clear all of the alarms before attempting to retransfer the load from bypass to UPS Auto Retransfer SCC An automatic retransfer will be initiated when the OK to Transfer Primed condition has been present for 10 seconds if the overload has dropped below 10096 of the rated S
85. e alarms at Module N and clear alarm conditions if possible Inverter MMU Inverter output is not synchronized with the UPS system critical bus Nonsynchronized This also means the output circuit breaker is open and should not be closed until the output is in sync This condition may correct itself If not shut down the UPS module and then perform a start up procedure Contact Liebert Customer Service amp Support if condition persists Overload MMU D F L S The UPS output current has exceeded 175 of the rated full load or Shutdown the overload capacity has been exceeded The UPS module is taken off line and shut down Contact Liebert Customer Service amp Support at once Do not attempt to reset circuit breakers Reverse Power MMU D F L S Excessive reverse power flow from the critical bus into the UPS inverter has occurred probably because of low inverter output voltage or a phase mismatch The UPS module is taken off line and is shut down Contact Liebert Customer Service amp Support immediately Do not attempt to reset circuit breakers Rectifier Fuse MMU D F S At least one of these fuses has opened or a inverter fault was Blown detected The UPS module is taken off line and is shut down Inverter Fuse MMU D F S Contact Liebert Customer Service amp Support immediately Do not Blown SCR attempt to reset the circuit breakers Inverter Fault Models D F S MMU Transisto rized Models Communication SCC S The COM
86. e correct model number is displayed Go to the modules s and follow the module STARTUP PROCEDURES Select MONITOR MIMIC screen verify that the output voltages are at the proper nominal level and correct number of modules online is displayed If the bypass or static switch breakers are open refer to Start up Procedures in the UPS manual for instructions on closing these breakers System is now ready to assume load Select LOAD TRANSFER PROCEDURES screen for this procedure 94 Operation UPS Module Start Up When a UPS module has been shut down for any reason use this procedure to start up the UPS module to provide filtered reliable power to the critical bus This procedure gives step by step instructions for controls to operate and conditions to observe Your present situation could be ini tial start up or recovering from input power failure battery shutdown maintenance shutdown or an emergency shutdown Perform this module start up procedure at each module in your UPS system until all required modules are on line Step 1 Before you apply power to the UPS module determine the position of the following circuit breakers and switches a Rectifier Input Breaker RIB If this external circuit breaker is closed you already have power to the UPS cabinet and possibly power to the controls If this breaker is closed leave it closed If it is open leave it open until you are ready to apply power to the UPS cabin
87. e module Master Menu highlight WALK IN DISPLAY and then press the Select pad Note that this screen is displayed at the UPS modules but is not required at the System Control Cabinet SCC Figure 23 Walk In Display Screen During Start Up Liebert SELECT MASTER MENU D C VOLTS INPUT AMPS OUTPUT VOLTS The Walk In Display screen enables the operator to monitor the UPS module DC bus voltage the input currents and the output voltage This is important during the start up procedures During start up the UPS module input circuit breaker is closed and power is applied to the UPS module The Walk In Display screen graphically shows the voltage increasing on the DC bus as the UPS module rectifier begins to walk in The DC Volts bar gradually moves to the right After the DC Volts bar reaches the 90 level the UPS module inverter starts up and the Output Volts bar also moves to the right Both the DC Volts and the Output Volts bars should settle near the 100 line as the UPS module becomes fully energized The three Input Amps bars one for each phase of input current move to the right during the ini tial transformer inrush They should return to the left after the momentary inrush has subsided then increase to about 10 as the DC Volts increase Modules equipped with the optional input filter will indicate more than 10 with no connected load NOTE After the critical load is transferred from the bypass line to the
88. er status on the MONITOR MIMIC screen Press the ALARM RESET button to clear alarms which are no longer active Item 1 Voltage Comparisons This chart shows the UPS and bypass voltage and frequency comparisons between each of the three phases If the UPS and bypass voltages are not within specified tolerances a manual transfer is not permitted and TRANSFER PROHIBIT is high lighted The Voltage Adjust knob push to turn located on the SCC Operator Control Panel see Figure 12 is used to match the UPS output voltage to the bypass voltage When the UPS and bypass voltages match within the specific tolerance a manual transfer is possible and OK TO TRANSFER is highlighted Item 2 Synchronization This display shows the phase synchronization between the UPS out put and bypass power If the phase displacement is outside of the tolerance a manual transfer is not permitted and TRANSFER PROHIBIT is highlighted During normal operation the synchronization display should read UPS LEAD from zero to 4 degrees Item 3 Status Messages Three messages are constantly displayed here Only the active mes sage is highlighted If TRANSFER PROHIBIT is highlighted manual transfers retransfers can not be performed and automatic retransfers will not be initiated Item 4 Manual Transfer Instructions These instructions assist the operator in transferring the critical load between the UPS system and the bypass line If the load is on the byp
89. es indicate whether the static bypass switch is connected or discon nected through the manually operated Static Switch Disconnects see Figure 11 The status messages also advise the operator when a transfer or retransfer between the UPS system and bypass line is permitted based on matching voltage frequency and phase The following status messages may appear in the system status area 1 2 Static Switch Connected The static switch is connected the disconnect switches are closed ON and is ready to provide a current path from the bypass input to the load Static Switch Disconnected The static switch is disconnected the disconnect switches are open OFF for maintenance procedures OK to Transfer The UPS system voltage frequency and phase match the bypass line This means that a transfer between the bypass line and the UPS system is permitted Not OK to Transfer Either the UPS or bypass voltage frequency or phase is not within the specified limits or the static bypass switch is not available Therefore manually initiated transfer between the bypass line and the UPS system is not permitted Emergency or overload transfer to bypass may still be available provided the static switch unable alarm is not indicating Load Block Messages Status messages in the Load block indicate how many modules are in the system how many mod ules are ON LINE and whether the system is operating in the redundant mode The following st
90. et b Input Circuit Breaker CB1 Verify that this breaker on the front of the UPS module cabinet Figure 9 and Figure 10 is in the OFF position c Module Battery Disconnect MBD Verify that this external breaker is open or tripped d Module Output Circuit Breaker CB2 Verify that this breaker on the front of the UPS module cabinet Figure 9 and Figure 10 is in the OFF position e Control Power This manually operated switch Figure 9 and Figure 10 will be in the ON position unless you are recovering from a maintenance shutdown If this switch is OFF leave it OFF until you are ready to apply power to the UPS controls CAUTION If you are recovering from a module shutdown for maintenance procedures verify that all of the UPS system doors are closed and latched All test equipment must be removed from the system All electrical connections must be secure Power must be provided to the UPS module controls so you can use the LCD display and so the system logic can perform its control functions Note that you can use the LCD display to monitor UPS status even when the UPS module is not on line If the LCD display is operating you already have Control Power This will be the usual condition unless you are recovering from a maintenance shutdown Step 2 Ifthe LCD screen is not operating energize Control Power by operating the following two controls a Closethe Rectifier Input Breaker RIB which is outside the UPS cabinet T
91. external devices with contact closure outputs It can be programmed to activate local audible and visual alarms in addition to network traps Remote Monitor Panel The Liebert Remote Monitor Panel provides an LED indication of the following conditions Load On UPS Load On Bypass Battery Discharge Low Battery Warning Overload Ambient Overtemp System Summary Alarm New Alarm This information is also available for customer use through a set of contacts on a separate termi nal board Alarm messages that activate the System Summary Alarm are listed in two tables SCC and Module Remote Monitor Indications and Other Alarms That Activate Summary Alarms in 3 1 5 System Configuration Screens The Remote Monitor Panel housing is NEMA Type 1 enclosure available for either surface mount or flush mount installations Operation 77 Separate Simultaneous Outputs Each of the communication interfaces previously described has its own dedicated port for connec tion to the required external device Therefore you can use any or all of the communication func tions built into the Series 600 UPS Note that whatever interfaces you use will all operate simultaneously Table 3 Series 600 Terminal Commands Key s A return AN N71 to 6 return Function Displays Present Status Report screen NOTE For all three report screens a number 1 through six in place of N will access an individual UPS module If no number is en
92. h disconnect circuit breakers Wait approximately two 2 minutes before attempting any other action Step 1 If the UPS system is supplying power to the load Load On UPS select the Load Transfer Procedures screen at the SCC and perform a manual transfer to the bypass line Load On Bypass This will open the motorized UPS Output circuit breaker Figure 11 and close the motorized System Bypass circuit breaker SBB refer to Figure 11 Step 2 If maintenance is required on the Static Bypass Switch set the Static Switch Discon nects to OFF open Refer to Figure 11 Q NOTE Depending on SCC model the static switch disconnects can be two circuit breakers or plug in connections on a drawout carriage assembly The location could be at the front right or rear of the cabinet Refer to the drawing of the SCC cabinet selected for your UPS system CAUTION The UPS bypass line is still energized 100 Operation Step 3 If maintenance is required in the area of the SCC controls or the motorized system circuit breakers UPS Output and SBB transfer the load to the Maintenance Bypass if available Close the Maintenance Bypass Breaker MBB Open the Maintenance Isolation Breaker MIB Open the Bypass Input Breaker BIB CAUTION If your installation does not include a Maintenance Bypass power must still be isolated from both sides of the UPS circuit breakers if maintenance is required This will result in loss of power
93. he UPS the availability of power sources and the current required by the critical load The system control logic at the SCC 1 Determines what overload conditions can be sustained without a transfer to bypass 2 Initiates an automatic transfer to bypass to sustain an overload 3 Can initiate an automatic retransfer to the UPS after a system overload has been cleared 4 Initiates an automatic transfer to bypass and emergency module shutdown when a specified UPS fault occurs The control logic at each UPS module 1 Determines what overload conditions can be sustained by the module while it is on line 2 Automatically takes the UPS module off line and initiates an emergency module shutdown when selected UPS faults occur Overloads Without Transfer The UPS system is capable of sustaining full output voltage 42 of the nominal voltage for over load conditions that remain within under the current versus time curve of system overload capacity and the capacity of modules on line Figure 62 Note that the time scale is not linear Load On UPS is illustrated in Figure 47 For high current demands of short duration momentary overloads the critical load is supplied simultaneously by both the UPS system and the bypass line Whenever the critical load requires more than 155 of the rated system SCC current the bypass line will supply up to 1000 rated system current through the solid state static switch for 40 milliseconds Refe
94. he UPS attempts to automatically retrans fer the critical load to the UPS output unless zero attempts is selected The Maximum Auto Retransfer Attempts limits the number of times 0 to 5 that the UPS attempts to retransfer the load back to the UPS within a one hour time period If more than the selected number of overloads occurs during one hour the critical load remains on the bypass line and must be manually retransferred to the UPS system Note that you should determine the cause of any overload condition Note that automatic retransfers are initiated only if the critical load was transferred to the bypass line because of a system overload If an automatic transfer to bypass occurred for any other reason an automatic retransfer will not be initiated Refer to 3 4 3 Automatic Retrans fers to UPS Figure 36 Maximum Auto Retransfer Attempts Screen lO Liebert MAX AUTO REXFER ATTEMPTS LOWER INPUT UPPER LIMIT EN s UP INCREASE DOWN DECREASE SELECT EXIT To change the Maximum Auto Retransfer Attempts parameter do the following at the SCC 1 From the System Configuration Screen press the Up or Down pad to highlight Maximum Auto Retransfer Attempts 2 Press the Select pad The above screen will appear Press the Up pad to increase the value or the Down pad to decrease it 4 Press the Select pad to set the value and to return to the System Configuration screen eo 54 Operation Remote Monitor
95. he first time Battery Charge will be an accurate indication of battery status 2 If Calculated Time Remaining is less than Rated Time Remaining a battery problem may be indicated Battery maintenance personnel should thoroughly examine the battery plant for factors that may reduce battery performance such as Age of battery Excessive battery discharge recharge cycles Bad or weak cells Low acid in flooded cells Loose electrical connections Ambient temperature extremes Dirty battery jar covers 3 Ifthe battery plant has been thoroughly examined for proper maintenance and condition and the Calculated value is still less than 80 of Rated value contact Liebert CS amp S The Series 600 records information about each discharge event If your system has the optional Battery Cycle Monitor software this data can be reviewed on the Battery Cycle Monitor screen as described in 3 1 4 Status Reports Screens Operation 65 3 1 11 Meter Calibration Screen Go to the Master Menu and move the highlighted cursor to METER CALIBRATION Press the Select pad and the Meter Calibration screen is displayed The Meter Calibration screen enables a Liebert field service engineer to adjust the calibration of the UPS metered functions at each cabinet Access to these settings is limited by the Security Access control NOTE Bypass Volts are calibrated only at the System Control Cabinet SCC Input Amps D C Volts and D C
96. he values for output volts and amps are updated once each millisecond Alarms are listed in the sequence they occurred within 1 millisecond resolution The frames are stored in a buffer a computer information storage technique The buffer stores the frames in a first in first out sequence As a new frame enters the buffer the oldest one is released When a designated fault occurs see list below the buffer stores information for the next 24 frames and then freezes stops gathering information At that time the History Status screen contains 40 frames before the fault the frame when the fault occurred and 23 frames after the fault This 64 page report is a very useful diagnostic tool for the operator or Liebert Customer Ser vice and Support Use the Up and Down pads to view the screens Figure 27 History Status Report Screens FRAME 36 HISTORY STATUS MODULE 0 04 10 96 16 49 21 ORDER 000000 SITE ID 00000 SITE TAG 0000000 ACTIVE ALARMS Output Ov volts A B DC LOAD HERTZ TIME OUTPUT VOLTS 480 480 480 OUTPUT AMPS 420 420 420 OUTPUT FREQUENCY 60 0 LOAD KVA 349 BYPASS VOLTS 480 480 480 UP NEXT FRAME DOWN PREVIOUS FRAME SELECT EXIT SCC HISTORY STATUS MODULE 0 01 17 96 11 21 59 FRAME 100 ORDER 000000 SITE ID 00000 SITE TAG 0000000 ACTIVE ALARMS Bait Discharging Low Batt Shutdn A B C DC LOAD HERTZ TIME OUTPUT VOLTS 480 480 480 OUTPUT AMPS 325 325 325 OUTPUT F
97. his will provide power to the UPS cabinet but not to any UPS components b The Control Power switch is located in the upper left part of the rectifier cabinet Figure 9 and Figure 10 Open the rectifier cabinet door and turn the Control Power switch ON See Figure 9 and Figure 10 Close the rectifier cabinet door NOTE Wait two minutes after applying Control Power before you operate any other UPS module controls Press the Select pad on the UPS module to put the Master Menu on the LCD display Move the highlighted cursor to Start Up Procedures use the Up and Down pads Press the Select pad to display the Start Up Procedures screen Return to this screen whenever you need to see the start up instructions On the LCD display select System Configuration from the Master Menu Verify that all of the information contained in the System Configuration screen is correct When the data is correct press the Select pad until the display returns to the Master Menu Operation 95 Figure 62 Module Start Up Procedures Screen OL Liebert START UP PROCEDURES Verify that the control power is applied to the system control cabinet check the display on the system control cabinet Wait approximately two 2 minutes before attempting any other action Select SYSTEM CONFIGURATION screen to verify that the correct model is displayed Select WALK IN screen and do the following a Close module input circuit breaker Verify that the DC
98. in 3 0 Operation Figure 5 SCC Controls and Display Screen with Example of the Monitor Mimic Screen de BYPASS INPUT Liebert A B SBC SCA 480V 480V 480V 627 KVA 1 502 KW 60 0 Hz ZA B C UPS RATINGS 755A 755A 755A SCCB 1600 UPS INPUT PWR__ 3 of 3 MODULES ae du p OUTPUT VOLTAGE CONNECTED SAB SBC SCA 480v 480V 480V 50 0 Hz LOAD REDUNDANT MOD 1 ON LINE MOD 2 ON LINE MODS LINE OK to Transfer Static Switch Connected 10 Introduction Figure 6 Module Controls and Display Screen with Example of the Monitor Mimic Screen UPS INPUT PWR DAB B C 2 C A 480V 480V 480V 350A 350A 350A BATTERY VOLTS 405 AMPS 15 CHARG Liebert LOAD 270 217 KW SA SB 2C 325A 325A 325A RATED 338 KVA OUTPUT VOLTAGE A B SBC SCA 480V 480V 480V 60 0 Hz Introduction 11 1 6 Options A number of standard pre designed options are available from Liebert for your UPS system Described below are the most frequently provided options Note that the battery items 1 3 are required to complete the UPS system The remaining options provide improved system performance or convenience 1 Battery The batteries provide power in the event of a power outage The Liebert UPS can use a variety of battery types provided the battery plant is designed for the UPS DC voltage range and the load requirements of
99. just volt ages and tighten connections as needed A report of all recordings taken during each visit volt ages specific gravity etc will be prepared for the Customer Any recommendations for corrective action such as cell replacements will be noted Battery Standard Full Service Agreement This Agreement includes four P M visits per year and corrective maintenance Extended Full Service Agreements For the UPS system and for the battery these Agree ments provide the Customer the convenience of scheduling P M visits during evenings and week ends The Battery Extended Full Service Agreement provides four for sealed cells or twelve for flooded cells P M visits per year corrective maintenance and parts Training Customer training courses include the proper operation of the system emergency procedures pre ventive maintenance and some corrective maintenance Warranties Contact Customer Service and Support if you have any questions regarding the warranty on your Series 600 UPS or the batteries Maintenance 109 4 3 4 3 1 4 3 2 Routine Maintenance You are encouraged to become thoroughly familiar with the equipment but at no time should you 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 Liebert Customer Service amp Sup port at 1 800 543 2378 for further instructions The UPS is designed f
100. ker in a make before break sequence Circuit breaker Overlap Time will be displayed on the screen b Ifthe load is on the UPS bypass simultaneously press the UPS and Control Enable pads Figure 12 This will close the motorized UPS Output circuit breaker and open the motorized System Bypass circuit breaker SBB in a make before break MBB sequence Circuit breaker Overlap Time will be displayed on the screen Return to the Monitor Mimic Display screen to monitor the operation of the UPS system Press the Alarm Reset pad to clear any latched alarm messages removed by the new load status Refer to Table 1 if an alarm message other than Load On Bypass is still displayed Contact Liebert Customer Service and Support if you require assistance 98 Operation Maintenance Bypass Load Transfers To manually transfer the load between Maintenance Bypass and the UPS system line carefully follow these instructions Do not transfer the load between Maintenance Bypass and the UPS sys tem inverters output Use the SCC Monitor Mimic Display screen to verify the UPS system bypass line is available N CAUTION Make sure you understand the proper sequence before operating any circuit breaker Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load If the load is on the UPS System Bypass 1 Close the Maintenance Bypass Breaker MBB 2 Open the Maintenance Isolation Breaker MIB Load is now
101. l commands Data link requirements are Asynchronous RS 232 communication Terminals may be configured as DTE or DCE Baud Rate Modem 1200 2400 Terminal 2400 only Data Bits 7 Stop Bits 1 Parity Odd Handshaking Not required Full Duplex Worldwide Reporting This port transmits UPS system status and history information to a remote terminal in RS 232 format through a Hayes compatible modem Auto Dial The Series 600 UPS communication program will automatically dial a pre programmed customer selected phone number when specified alarm conditions occur The auto dial phone number an alternate number and the modem baud rate are programmed by using the SCC System Configu ration screen The alarm messages that initiate an auto dial call are identified in Table 1 When the auto dial function is initiated automatic dial attempts to the first phone number are made at periodic intervals for 30 minutes If unanswered the system rolls over to the second number and repeats calling until connection is made or returns to first phone number after 30 minutes Once a connection is made to a terminal the system transmits the information on the Present Status Report screen then hangs up The Present Status Report includes the UPS system identi fication number date time alarm messages and metered parameter indications Requesting Information If your Series 600 is equipped with a modem and telephone line you can call th
102. larms grouped together The third column indicates which special functions if any are initiated by the alarm D the alarm initiates an auto dial call through a user provided modem to a remote terminal E message displayed only on Status Report screens including Event History F the alarm freezes the History Status Report memory buffer in the cabinet where the alarm is displayed Pressing the Alarm Reset pad for 5 seconds will unfreeze the memory buffer L the alarm latches the displayed alarm message Some alarm conditions are temporary transient and may not last long enough to be noticed Latching the display keeping it on lets you know that an alarm condition has occurred A latching display alarm remains on the display screen until the alarm condition is removed and the Alarm Reset pad is pressed R the alarm is displayed on an optional Remote Monitor Panel This information is also available for customer use through a set of contacts on a separate terminal board S the alarm initiates a summary alarm at the Remote Monitor Panel and at the SCC The fourth column provides an explanation of the alarm condition the critical bus status and the corrective actions if any to remedy the alarm Abbreviations Used in Alarm Messages Auto Automatic Avail Available Batt Battery Byp Bypass Cap Fuse Capacitor Fuse Cont Power Control Power Equip Equipment H W Ha
103. late the UPS from all power sources Use of the Maintenance Bypass is described in 3 0 Opera tion Off Battery The battery plant can be disconnected from the rectifier charger by using an external Module Bat tery Disconnect MBD circuit breaker The UPS continues to function normally though it does not have power outage back up capability until the battery plant is reconnected Introduction 9 1 5 Operator Controls The Liebert Series 600 UPS System Control Cabinet SCC and each individual module are equipped with a microprocessor based Operator Display Screen and Control Panel designed for convenient and reliable operation The front panel location of the monitoring and control system enables the user to quickly identify the current status of the UPS and to perform most of the manual operations The operator display screen is driven by an easy to follow menu prompted software program that controls and moni tors the UPS system The operator controls and Monitor Mimic screen for the System Control Cabinet SCC are shown in Figure 5 The controls and display screen for each UPS module are shown in Figure 6 Each cabinet SCC or module has the displays and controls required to monitor and perform its func tions A three module system designed for redundant operation is shown A multi module UPS system may include up to six 6 modules for each SCC Detailed instructions on how interpret the displays and use the controls are
104. lled access to limit who is able to change site parameters This type of screen is called a Security Access screen This con trolled access feature allows anyone to review the present parameters but limits access for mak ing changes When you see Security Access displayed on the screen upper left corner to make authorized changes you must open the control cabinet door key required and push the Inter lock button on the back of the control panel Figure 13 Close and lock the control cabinet door after making authorized changes Figure 31 SCC System Configuration Screen SECURITY ACCESS UP CURSOR UP 8 Liebert DOWN CURSOR DOWN SELECT CHOOSE SYSTEM CONFIGURATION Part Number 02 791112 14 Order Number Site ID Number Site TAG Number 0000000 System Number Number of Modules in Systern Date Time Auto Dial Wax Auto Rexfer Attempts System Current Rating System Options _ 01 17 96 14 51 59 LL YES NOTE If you accidentally set a site parameter digit to a wrong value you must return to the System Configuration screen and go again to your desired screen Part Number This is a factory set part number of the UPS cabinet which determines many internal operating parameters It cannot be changed Order Number This is a factory set number to identify your particular installation System Number This number is used to identify one or more U
105. load in kVA and kW The critical load current per phase is also displayed in this block 34 Operation Alarm Messages The alarm message area displays vital information about the operation of the UPS system Dur ing normal operation no alarm messages should be present Alarm conditions can be monitored The alarm messages are displayed in reverse video highlighted light on dark To clear a latch ing alarm you must also press the Alarm Reset pad after the alarm condition is corrected NOTE The Alarm Reset pad also resets the History Status Report memory buffer when it is held for 5 seconds The following list shows the alarm messages that may be displayed in this area For more infor mation and the corrective actions for these messages refer to Table 1 in this section Item 5 Alarm Messages Input Fail DC Ground Fault DC Capacitor Fuse Blown Battery CB Open Battery Discharging Low Battery Warning Low Battery Shutdown DC Over Voltage Shutdown Control Power Fail Inverter Non Synchronized Overload Overload Shutdown Reverse Power Rectifier Fuse Blown Inverter Fuse Blown SCR models Inverter Fault transistorized models Hardware Shutdown Emergency Off Ambient Over Temperature Blower Failed Equipment Over Temperature Over Temperature Timeout Operation 35 Figure 18 through Figure 22 illustrate how Monitor Mimic Display screens on the SCC and on a module depict the power flow
106. load to bypass before a UPS module exceeds its overload capacity If a module overload condition is sustained beyond inverter capac ity the UPS module is automatically taken off line disconnected from the critical bus and is shut down If the UPS system is operating in the redundant mode the load may remain on the UPS system Refer to 3 4 Automatic Operations Non Linear Load Characteristics Computers and computer equipment with switching power supplies generate non linear currents rich in fifth and seventh harmonics The inverter pulse width modulated six step waveform coupled with the output filter provides a natural path for reducing the fifth and seventh harmonic currents produced by the load The inverter filter limits the output voltage THD to less than 5 with up to 100 typical electronic data processing EDP loads EDP equipment characteristically includes both non linear and lin ear load components Unbalanced Load Characteristics Unbalanced loads are actively regulated The phase to phase voltage balance is maintained to within 2 even with a 50 load imbalance Each phase to phase voltage is regulated on the primary side of the output isolation transformer which in turn provides individual phase to neutral regulation on the secondary side sensing is phase to neutral on the secondary side The output isolation transformer has an open delta pri mary and a zigzag wye secondary configuration The range of control of the
107. mary D auto dial initiated by Auto Transfer to Bypass if load is on UPS when alarm occurs D auto dial initiated through Module N 1 6 off line 72 Operation Table 1 Alarm Messages Meaning and Corrective Action continued Alarm Cabinet Special Meaning and Message Location Functions Corrective Action in Brackets UPS SYSTEM Cont d Overload SCC R S The UPS output current exceeds the rated system load current This MMU S condition causes an alarm only the UPS does not shut down Determine cause of the overload Reduce the load until the overload condition is corrected Reset the UPS alarm Overload Transfer SCC D F L S The load on the UPS has exceeded the current versus time window of system overload capacity The UPS system transfers the load to bypass Reduce the load If the system does not initiate an automatic load retransfer manually retransfer the critical load from the bypass line to the UPS Reset the alarm Module Summary SCC S An alarm message see lists in SCC and Module Remote Alarm R MMU Monitor Indications and Other Alarms That Activate Summary Alarms in 3 1 5 System Configuration Screens or the watchdog timer has activated the Module Summary Alarm Clear alarm conditions if possible Module N Off Line SCC D The output circuit breaker of Module N is open The number N will R MMU identify the module 1 through 6 Review activ
108. mergency Module Off or Emergency Power Off switch has been pressed which caused the UPS system to shut down and transfer the load to the bypass line or all power to the critical load has been shutdown Determine the cause of the emergency condition and correct it if possible Contact Liebert Customer Service amp Support if you require assistance COOLING Ambient Over Temperature MMU The intake air to the UPS module exceeds the specified maximum temperature This condition only causes an alarm but should be corrected immediately to prevent damage to equipment due to overheating Blower Failed MMU A fault in one or more of the blower motors has occurred This condition only causes an alarm but if not promptly corrected it could cause an equipment over temperature condition that would shut down the UPS module Check the blowers for proper operation Contact Liebert Customer Service amp Support if you require assistance Equipment Over Temperature MMU Sensors on power semiconductor heatsinks detect temperatures above the steady state limits for these components The control logic sets off the alarm but does not shut down the UPS module if the condition lasts less than 10 minutes Check the air intake air exhaust and filters Reduce the load or transfer it to bypass Contact Liebert Customer Service and Support if the alarm persists Over Temperature Timeout MMU An Equi
109. mes distorted If there is an outage of the source power the UPS maintains power to the load until an alternate source of power is activated or until the original power source is restored If input AC power is not restored the UPS maintains the load with the battery plant long enough that the critical equipment can be shut down in an orderly manner The Series 600 UPS module displays the rate of battery discharge and calculates the amount of battery time remaining based on the actual con nected load The time that the battery will maintain the load depends on the capacity of the bat tery backup plant and the size of the load The system control logic automatically manages critical bus operation System logic is resident in Application Specific Integrated Circuits ASICs for precise control and improved reliability If the critical load current exceeds the rated load of the Series 600 UPS system the control logic determines the magnitude of the overload and reacts appropriately Overloads are usually the result of inrush current requirements The UPS system supports loads that are 150 of the rated load for up to 30 seconds 125 of the rated load for up to ten minutes and 104 of the rated load indefinitely If the system is operating in the non redundant load e g a UPS module is off line the overload limits are automatically adjusted Figure 1 Multi Module 150 and 225 kVA UPS 78 3 in Refer to dra
110. module goes off line The Series 600 UPS display system provides precise monitoring of the UPS fast alarm response and quick troubleshooting For easy manual operations menu driven software provides access to several step by step help screens All operator functions are performed using menu prompted dis plays and a minimum number of operator controls The System Control Cabinet includes external communication capability with both automatic dial out and dial in features for early warning and diagnosis of abnormal conditions The system software allows the operator or Liebert Customer Service and Support to enter application specific information Overload overvoltage battery discharge and shutdown limits can be set by the operator In effect the software can be tailored for each site The UPS system protects critical equipment from source power disturbances and outages load faults and UPS malfunctions This triple protection virtually eliminates computer and computing equipment downtime as a result of utility source power problems 4 Introduction Figure 2 Multi Module 300 to 450 kVA UPS Refer to drawings for 208 VAC dimensions Introduction 5 1 2 Reliability Uninterruptible Power Systems are becoming a necessity for all types of businesses The substan tial investments made to manage information assets mandate using the most reliable system available to supply power to computers
111. module output circuit breaker is open More specific alarm messages are displayed at the UPS module 4 SUM ALM The Module Summary Alarm has been activated by one of the alarm messages listed in two tables SCC and Module Remote Monitor Indications and Other Alarms That Activate Summary Alarms in 3 1 5 System Configuration Screens The specific alarm message is displayed at the UPS module 5 COM FAIL The UPS module is not communicating with the SCC This could mean loss of power to the UPS module controls a disconnected cable or a control logic failure detected by watchdog timer Call Liebert Customer Service and Support if you require assistance To resume communication after control power is restored sequence display to Master Menu Figure 48 SCC Status and Alarm Message Areas Liebert BYPASS INPUT AN LOAD PRB SBC CA LU U UU U U U U U U UU U Cy 627 KVA 502 KW o OV GHz ZA SB C 755A 755A 755A UPS RATINGS SCCB 1600 3 OF 3 MODULES CONNECTED REDUNDANT Time To Overload Transfer XXXX SEC UPS INPUT PWR SBC OUTPUT VOLTAGE ee oy ZA B B C ZC A ABOV 480V 480V 60 0 H2 MOD 1 ON LINE SUM ALM MOD 2 ON LINE SUM ALM ee a bi ic Sw Unapie MOD 3 ON LINE SUM ALM Not OK to Transfer cam man Static Switch Connected MODULE STATUS SYSTEM STATUS LOAD BLOCK ALARM MESSAGES MESSAGES MESSAGES MESSAGES 68 Operation System Status Messages The system status messag
112. nce Bypass Breaker MBB and Maintenance Isolation Breaker MIB 7 Two Breaker Maintenance Bypass This switchboard provides make before break maintenance bypass It includes Maintenance Bypass Breaker MBB and Maintenance Isolation Breaker MIB 8 SiteScan Central Monitoring System Liebert manufactures a central monitoring system that automatically displays key UPS mea surements and alarms as well as data from a variety of sensors This monitoring system sig nals alarms so corrective action can be taken Events and data can be printed in hard copy Data can be logged for analysis The SiteScan interface circuitry is built into the System Con trol Cabinet SCC of your Liebert Series 600 UPS System 9 Remote Monitor Panel The UPS system may also be provided with an optional Remote Monitor Panel This Panel provides eight LED indicators and may be placed at a convenient location near the critical load A functional description of the Remote Monitor Panel is provided in 3 0 Operation of this manual 10 Customer Alarm Interface This optional interface board allows the input and display of 8 alarms from customer supplied contacts each with a customer selected name of up to 16 characters The following attributes can be user programmed for each alarm latching summary freeze history sound horn auto dial and time delay 0 to 999 9 seconds 12 Introduction 2 0 THEORY OF OPERATION 2 1 General Component Descriptio
113. nd also allows the user to turn LCD dis play back lighting on or off Figure 24 Status Reports Screen 0 1 b UP CURSOR UP iebert SELECT CHOOSE PRESENT STATUS EVENT HISTORY HISTORY STATUS SYSTEM STATUS 42 Operation Present Status The Present Status screen shows the current status of the UPS system SCC or module This screen displays any alarm messages that are present and the values of the metered parameters for each cabinet Battery values are displayed only at the UPS modules Each update sequence every 4 milliseconds is called a frame The frame number is displayed in the upper right corner The Present Status screen display is updated every two seconds Battery Time Remaining in minutes is displayed on the module screens during a battery dis charge The value is on the Battery Volts line in the TIME column far right side of the screen For the first two minutes of discharge the Rated Time Remaining is displayed After that the Calculated Time Remaining is displayed and updated every six seconds All the information on this screen including Battery Time Remaining is available to a local ter minal or modem through the communications ports provided in the Series 600 UPS Refer to Table 3 in this manual for keyboard commands to use with the communication ports Figure 25 Present Status Report Screen FRAME 35 PRESENT STATUS MODULE 0 01 12 96 14 06 26 ORDER 000000 SITE
114. nects are closed ON An alarm message may be displayed to indicate Load On Bypass If no alarm is displayed the operating status is Load On UPS When the OK to Transfer message is displayed you can perform a manual transfer of the load from the UPS system to bypass or a manual retransfer of the load from bypass to the UPS sys tem Use the Load Transfer Procedures screen at the SCC when performing a manual transfer Refer to 3 3 2 Load Transfer Procedures The UPS system control logic at the SCC will initiate an automatic transfer to bypass if an over load condition exceeds the system current versus time window or if a UPS module is taken off line while the system is operating in the non redundant mode An automatic retransfer to the UPS system may be initiated when recovering from system overloads lasting less than five min utes Refer to 3 4 Automatic Operations NOTE When the critical load is being supplied power from the bypass line it is exposed to utility power disturbances Figure 50 Load on Bypass UPS Available SCCB can accomodate up to 6 UPS modules 80 Operation Figure 51 Load on UPS Bypass Available System Controls Output 2 mas mi mmk To Critical Load SCCB can accomodate up to 6 UPS modules Operation 81 3 2 3 Momentary Overloads An overload in the critical load will continue to be supplied by the UPS
115. ns The UPS system includes all of the equipment necessary to continuously provide computer grade AC power to a critical load even when there is an interruption of the utility line power It consists of a System Control Cabinet SCC UPS modules and a back up battery plant Refer to Figure 7 and Figure 8 Except where otherwise noted the configuration is presumed to be parallel redun dant with at least one more UPS module than required to support the rated load System Control Cabinet The System Control Cabinet SCC includes system controls static bypass switch load transfer control protective devices and other accessories The system controls simultaneously monitor two or more parallel UPS modules sharing a critical load for increased capacity and or redun dancy The two 2 motor operated system circuit breakers system bypass breaker SBB and UPS output breaker may be contained within the SCC depending on the configuration designed for your installation System Controls The system control logic automatically manages critical bus operation and monitors performance of the UPS modules Microprocessor technology and dedicated firmware provide advanced logic control and a comprehensive display of information The system control logic synchronizes the output of the UPS system to the bypass source The SCC includes ports for communicating with external devices Liebert Multi Module Units do not require an SCC for load sharing Automatic
116. nspect installations in new buildings more often then extend the inspection period as expe rience dictates 110 Maintenance 4 3 3 Battery Maintenance WARNING THESE MAINTENANCE PROCEDURES WILL EXPOSE HAZARDOUS LIVE PARTS REFER SERVICING TO QUALIFIED PERSONNEL DC FUSES OPERATE AT THE RATED BATTERY VOLTAGE AT ALL TIMES A BLOWN DC BUS FUSE INDICATES A SERIOUS PROBLEM SERIOUS INJURY OR DAMAGE TO THE EQUIPMENT CAN RESULT IF THE FUSE IS REPLACED WITHOUT KNOWING WHY IT FAILED CALL LIEBERT CUSTOMER SERVICE AND SUPPORT FOR ASSISTANCE 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 CAUTION 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 may be toxic A battery can present a risk of electrical shock and high short circuit current The following precautions should be observed when working on batteries
117. ntain the UPS cabinets free of foreign materials such as solder wire cuttings etc Call the Liebert Customer Service amp Support if you are not sure of the procedures to follow or if you are not familiar with the circuitry Maintenance 107 N WARNING 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 CIRCUIT BREAKERS 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 RATI
118. ntains the steps you must follow to perform a controlled shutdown of each UPS module The instructions are listed so you can review them before performing the controlled shutdown Figure 42 Module Shutdown Procedures Screen OL Liebert 1 SHUTDOWN PROCEDURES If load can not be supported by the remaining madules when this module is taken off line go to the system control cabinet and select the LOAD TRANSFER PROCEDURES screen Follow the instructions to transfer the load to bypass Open the module output breaker by simultaneously pressing the OUTPUT TRIP and CONTROL ENABLE pushbuttons Open the modute battery breaker by simultaneously pressing the BATTERY TRIP and CONTROL ENABLE pushbuttons Manually open the input breaker by moving the handle to the OFF position B Liebert SHUTDOWN PROCEDURES Cont d Verity breaker status on the MONITOR MIMIC sereen If necessary for maintenance purposes turn the control power switch fuse disconnect on some models to the OFF position Wait a minimum of two 2 minutes before attempting any other action perform the shutdown procedure transfer the critical load from the UPS system to the bypass line at the SCC Then trip open the UPS module output and battery circuit breaker MBD and manually open the UPS module input circuit breaker The Control Power switch may be turned Off if required for maintenance procedures Refer to 3 3 3 Shutdown Proced
119. number required to supply the critical load redundant system operates in the redundant mode if all modules are ON LINE Note that the UPS system can also operate in the redundant mode with one or more modules OFF LINE if the critical load is reduced so that not all ON LINE modules are required The UPS modules share the load and the critical load will remain on the UPS sys tem if one or more of the modules are disconnected goes OFF LINE for maintenance or because of an internal fault and the remaining ON LINE modules can carry the full connected system load The system control logic monitors the connected critical load and the number of UPS modules ON LINE if the UPS system is operating in the redundant mode the REDUNDANT status message will be displayed at the System Control Cabinet SCC If the UPS system is operating in the non redundant mode redundant module s is OFF LINE or was not included in the system configura tion the NONREDUNDANT status message is displayed at the SCC In the Non Redundant mode the critical load will be transferred to bypass if any UPS module s goes OFF LINE and the remaining ON LINE module s cannot carry the connected load without being overloaded The system control logic located in the SCC automatically adjusts the overloaded limits based on the connected load and the number of modules ON LINE 22 Theory of Operation 3 0 OPERATION 3 1 Display Screen and Operator Controls Ea
120. oad will remain on the UPS system If the UPS system was operat ing in the nonredundant mode an automatic transfer to bypass will be initiated Note that the bypass line is usually not available during Low Battery Shutdown One Module Off Line is illus trated in Figure 50 The following UPS module faults will initiate an automatic Module Off Line DC Over Voltage Shutdown Hardware Shutdown Inverter Fuse Blown SCR models Inverter Fault Transistorized models Low Battery Shutdown Overload Shutdown Over Temperature Timeout Rectifier Fuse Blown Reverse Power Refer to Table 1 for more information regarding these alarm messages Automatic Emergency Modules Off For the specified UPS system fault the control logic will initiate an automatic transfer to bypass followed immediately by a shutdown and isolation of the UPS system In the Emergency Modules Off mode the output battery MBD and input circuit breakers at each UPS module are open The System Bypass Breaker SBB will be closed if the bypass line is available Emergency Modules Off is illustrated in Figure 52 The following UPS system fault will initiate an automatic Emergency Modules Off Output Over Voltage Refer to Table 1 for more information regarding alarm messages NOTE Q A load transfer to the bypass line will be completed whenever an automatic transfer to bypass is initiated and the bypass line is available If the OK to Transfer condition is present the load t
121. odule Controls The module control logic monitors performance of the UPS module The UPS module status is displayed locally and is also sent to the System Control Cabinet Rectifier Charger The rectifier charger converts utility power from AC to DC to charge the bat tery and provide the DC input to the inverter Its design limits reflected harmonic current distor tion to source power and provides low ripple DC power for charging batteries Multiple rectifiers chargers can share a common battery plant if that configuration is preferred for your application Inverter The inverter converts DC power into the precise AC power required to supply a sensi tive critical load The inverter converts DC power into a pulse width modulated PWM six step waveform that is easily filtered into a clean sine wave output The PWM stepwave also minimizes the harmonic voltage distortion caused by typical switching power supplies and other non linear load components used in computers and related electronics Battery Plant The battery is used as the alternate source of power to supply DC power to the inverter if the AC supply voltage is outside the acceptable range The battery supplies power to the inverter until the utility power is restored or until an alternate power source is available If AC source power is not restored or an alternate power source is not available the battery can be sized to provide power long enough for an orderly shutdown of the load
122. ogo are registered trademarks of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners Printed in U S A SL 30023 Revised July 1996
123. ol Power is ON even when the UPS module is not operating System status information is available on the SCC display screen and at local and remote terminals when at least one module is on line or when the bypass source is available The screen will automatically display the Monitor Mimic during normal operation The System configuration screen will be displayed during start up and whenever a system reset is required If a module display screen is blank either power is not available the Rectifier Input RIB circuit breaker external to the UPS module is open or the Control Power switch is OFF If power is available and a display is blank contact Liebert Customer Service and Support Note that status information may be available at local and remote terminals Use control touch pads at the SCC to manually transfer the critical load to the bypass line if the SCC display goes blank while load is on UPS a very unlikely event Operation 29 3 1 4 Master Menu Screen The Master Menu contains the primary menu selections that monitor and control the operation of the UPS Figure 15 Master Menu Screens O Liebert UP CURSORUP DOWN CURSOR DOWN SELECT CHOOSE MASTER MENU MONITOR MIMIC DISPLAY START UP PROCEDURES STATUS REPORTS SHUTDOWN PROCEDURES SYSTEM CONFIGURATION METER CALIBRATION LIMIT SETTINGS BATTERY EQUALIZE LOAD TRANSFER PROCEDURES CUSTOMER ALARM DEFINITIONS SCC Liebert UP CURSOR UP
124. on Battery If the utility AC power source fails or is outside the acceptable range the battery plant becomes the power source for the UPS module inverters The UPS system continues to supply power to the critical load and also to the controls of the UPS modules and the SCC You can use the Battery Time screen at the UPS modules to monitor the present battery voltage compared to the shutdown value The length of time the battery can sustain the load depends on the size of the load and the size and condition of the battery plant The battery plant is usually large enough to supply a 100 rated load for 15 minutes Alarm messages that indicate battery status are Battery Discharge Low Battery and Battery Shutdown The voltage limits for these alarms are displayed on the UPS module Alarm Limit Set tings screen These limits were selected for your installation by Liebert Customer Service and Support during initial start up The battery block in the UPS module Monitor Mimic Display indicates Charge or Discharge and the current in Amperes Maximum battery discharge current ranges from 316 amps for 150 kVA to 2440 amps for 1000 kVA Refer to the separate Installation Manual or drawings for specific data on your system Figure 53 Input Power Fail Load on Battery mimi ms System Controls Output mi mme mimi mme mimi mi mms sm TET To Critical Load MBD MBD MBD SCCB Battery Battery can accomodate up to 4 U
125. onal input filter 500 kVA to 1000 kVA Less than 9 THD typical at normal full load input current Less than 4 reflected THD typical at normal full load input current with optional input filter Power Factor 0 81 minimum lagging at full load 0 91 minimum lagging at full load with optional input filter BYPASS INPUT Input Voltage Standard voltages 208Y 120 VAC 480Y 277 VAC 600Y 346 VAC Other voltages available on request 3 phase 3 wire plus ground or 3 phase 4 wire plus ground Optional voltages 208 VAC 480 VAC 600 VAC Other optional voltages available on request 3 phase 3 wire plus ground ungrounded or corner grounded delta Voltage Range 5 for manually initiated bypass transfer 10 for automatically initiated uninterrupted transfer Frequency Range 59 5 Hz to 60 5 Hz Voltage Transient 4 for manually initiated bypass transfer Specifications and Ratings 121 CRITICAL LOAD OUTPUT Output Voltage Standard voltages 208Y 120 VAC 480Y 277 VAC 600Y 346 VAC Other voltages available on request 3 phase 3 wire plus ground or 3 phase 4 wire plus ground Optional voltages 208 VAC 480 VAC 600 VAC Other optional voltages available on request 3 phase 3 wire plus ground ungrounded or corner grounded delta Voltage Regulation 0 5 for balanced load 2 for unbalanced load Voltage Adjustment Range 5 manuall
126. only activates an alarm The UPS does not shut down but a separate control circuit will transfer the critical load to bypass if the current and time of the overload con dition exceeds system capability DC Over Voltage modules only This setting limits the maximum permitted level of the DC bus voltage When this setting is exceeded an alarm indication appears on the module display screen The UPS module is taken off line the module output circuit breaker is tripped open and the input and battery circuit breakers trip open Battery Discharging modules only When the battery voltage on the DC bus falls below this limit for 5 seconds a Battery Discharging alarm message is displayed on the module screen This means that the battery is discharging due to an input voltage sag or interruption or a module output overload Low Battery modules only While the battery is discharging this alarm warns the operator that the Battery Shutdown level is approaching This is typically set for a reserve time of at least five minutes 10 to 20 volts above Battery Shutdown based on full load operation Battery Shutdown 15 Minutes modules only When the battery voltage decreases to this limit for five seconds during the first 15 minutes of the discharge the battery circuit breaker opens to prevent over discharge Note that the rated battery reserve time at your site may be other than 15 minutes Battery Shutdown 60 Minutes modules only During e
127. op of this block The UPS sys tem output voltage and frequency are also displayed in this block The UPS Output Breaker is shown to the right of this block The status of the circuit breaker is illustrated as open or closed Item 4 Load This block displays the total output power to the critical load in kVA and kW The critical load current per phase is also displayed in this block Note that kW is not displayed when the load is on the bypass line The load block also indicates the number of modules connected and whether the UPS system is operating in the redundant or nonredundant mode During an overload condition the time remaining before shutdown or transfer is displayed at the bottom of the load box 32 Operation Status Alarm Message Areas The status alarm message areas display vital information about the operation of the UPS system During normal operation no alarm messages should be present Changes in the status of the sys tem and possible alarm conditions can be monitored Both the status and the alarm messages are displayed in reverse video highlighted light on dark The alarm messages continue flashing until the Horn Off pad is pressed To clear a latching alarm you must also press the Alarm Reset pad after the alarm condition is corrected NOTE The Alarm Reset pad also resets the History Status Report memory buffer when it is held for 5 seconds The following lists show the status and alarm messages that may
128. or unattended operation but does require some common sense mainte nance Keep good records Troubleshooting is easier if you have historical background Keep it clean Maintain the UPS free of dust and any moisture Keep it cool Although the UPS will operate within specifications at higher temperatures performance will be further enhanced when the UPS is operated at 25 C Keep connections tight Tighten all connections at installation and at least annually thereafter See torque require ments Table 4 Record Log Set up a maintenance log to record scheduled checks and any abnormal conditions The log should have space for all metered parameter indications including phase readings alarm messages UPS mode of operation air filter replacement date and observation notes 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 Air Filters A schedule for inspection of the air filters is required The period between inspections will depend upon environmental conditions Under normal conditions the air filters will require service or replacement approximately every two months Abnormal or dusty conditions will require more frequent cleaning and or replacement of air fil ters I
129. ours the batteries should require little charging current Battery mimic should indicate normal DC voltage with the battery charge current no more than 31 Amperes 3 Input current on each phase should be within 10 of the average input current 4 Any metered parameter indication that deviates appreciably from normal could mean an impending malfunction which may require troubleshooting 5 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 Table 1 and Table 2 in 3 0 Operation to interpret alarm messages 6 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 The Liebert Customer Service Engineer will also be familiar with test points inside the unit Q NOTE If the UPS system has a blown fuse the cause should be determined before you replace the fuse Contact Liebert Customer Service and Support 116 Maintenance 4 5 4 6 4 7 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 Field Service Regional Office near est you This information can also be automatically sent by telephone modem Call 1 800 548 2378 o
130. p and Down pads Press the Select pad to display the Load Transfer Procedures screen Step 1 Verify that the OK TO TRANSFER message is highlighted If not if the TRANSFER PROHIBIT message is highlighted instead slowly rotate the Voltage Adjust knob Figure 12 Item 6 to match the UPS system voltage to the bypass voltage NOTE If the TRANSFER PROHIBIT message remains refer to Table 1 for corrective action for any alarm messages Call Liebert Customer Service and Support if you cannot solve the problem Figure 63 Load Transfer Procedures Screen 0 Liebert VOLTAGE COMPARISON A B B C CA FREQUENCY SYNCHRONIZATION 30 0 30 UPS 480 480 480 60 0 Hz BYPASS 481 480 479 60 0 Hz MANUAL ON UPS TRANSFER INSTRUCTIONS CR OK TO TRANSFER 1 Adjust the UPS voltage until it equals the bypass voltage with the VOLTAGE ADJUST pot TRANS PER PROHIBIT 2 ifthe OK TO TRANSFER message is highlighted simultaneously press the BYPASS and CONTROL ENABLE buttons Verify that ihe transfer was successful by checking ihe breaker status on the MONITOR MIMIC screen Press the ALARM RESET button to clear alarms which are no longer active Step 2 Perform Step 2 on the Load Transfer Procedures Screen a Iftheload is on the UPS system simultaneously press the Bypass and Control Enable pads Figure 12 This will close the motorized System Bypass circuit breaker SBB and open the motorized UPS Output circuit brea
131. pass line You can determine this by observing the Monitor Mimic Display screen at the System Control Cabinet SCC Step 2 If the bypass line is not supplying the load the LCD screen will be blank Energize the bypass line by operating the following controls a Close the Bypass Input Breaker BIB This breaker may be in your Maintenance Bypass cabinet NOTE Wait two minutes after applying bypass power before you operate any other UPS controls CAUTION DO NOT assume that the UPS System Bypass Breaker SBB is closed Instructions for operating the Maintenance Bypass circuit breakers are on the Maintenance Bypass cabinet Make sure you understand the proper sequence before operating any circuit breaker Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load b Observe the Monitor Mimic Display screen to determine if your System Bypass circuit breaker SBB is closed and whether the UPS Bypass line is supplying power to the critical load If your System Bypass circuit breaker is open as in recovering from an Emergency Power Off or Low Battery Shutdown close this circuit breaker as follows b1 Open the SCC control panel door and find the Transfer Relay Board Figure 13 If the red LED CR18 labeled TOT S D Total Shutdown is on press the Bypass Reset switch SW1 on this board The red LED should turn off b2 Set the Static Switch Disconnects Figure 11 to OFF open
132. phase to neutral volt age is within 2 The three phase root mean square RMS approximately 70 of the peak average voltage is also regulated through a separate control circuit phase to phase sensing 18 Theory of Operation 2 2 5 Static Bypass A static bypass is an integral part of the UPS System Control Cabinet SCC Refer to Figure 8 The static bypass consists of a static bypass switch and bypass power switching devices motor operated circuit breakers An automatic transfer control circuit senses the status of the operator controls UPS logic signals and alarm messages and critical bus operating conditions If the UPS modules can no longer supply the critical load the static bypass switch in conjunction with motorized circuit breakers automatically transfers the critical load to the bypass source without interruption Figure 8 System Control Cabinet SCC Block Diagram Gate Driver Static Bypass Switch Q Static Switch O C y Disconnects gt O SBB Bypass Line 7 0 0 Sync amp 7 i Transfer Lope er Power Transfer UPS Supply Control i System E Modules System i x Voltage Adjust i To Critical UPS Output Load SBB SYSTEM BYPASS BREAKER Fuse Protection The static bypass switch path uses two back to back SCRs per phase Each phase is individually protected by a fuse sized to clear only in the event of a catastrophic fault This is a more reliable method th
133. pment Over Temperature condition has persisted for more than 10 minutes The UPS module is taken off line and is shut down Check the air intake air exhaust and filters before attempting to start up the UPS REMOTE MONITOR PANELS Refer also to SCC and Module emote Monito 3 1 5 System Configuration Screens r Indications and Other Alarms That Activate Summary Alarms in Load on UPS R SCC The UPS is operating properly No corrective action is necessary New Alarm R SCC Another new alarm message has been registered on the UPS R MMU system Clear the new alarm condition if possible System Summary R SCC One or more of the UPS system alarm messages has been activated Alarm or a control logic failure has been detected by a watchdog timer Use the Present Status screen to determine which alarms are active Clear the new alarm condition if possible to do so Module Summary R MMU One or more of the UPS module alarm messages has been Alarm activated Use the Present Status screen to determine which alarms are active Clear the new alarm condition if possible to do so Table 1 Abbreviations D auto dial L latches E reports only R remote F freezes S summary D auto dial initiated by Auto Transfer to Bypass if load is on UPS when alarm occurs D auto dial initiated through Module N 1 6 off line 74 Operation Table 2 Alarm Messages
134. process until connection is made Upon connection the system transmits data in RS 232C format that includes the system identi fication code the present alarm message s and the time that the alarm s occurred Refer to 3 1 14 Communication Interfaces Refer to the Special Functions column in Table 1 and Table 2 to see which alarm messages will initiate an auto dial call Figure 34 Auto Dial Setting Screen Lo UP CURSOR UP Liebert DOWN CURSOR DOWN SELECT CHOOSE AUTO DIAL SETTING SCREEN Enable Auto Dial YES Modem Baud Rate 2400 Auto Dial Number _ 1 800 555 1234 Second Number 0 000 000 0000 Modem Initialization String If the auto dial numbers were specified at time of order the numbers are preprogrammed into the system However if the numbers need to be changed follow the steps listed below to reprogram the auto dialer at the SCC 1 From the System Configuration screen press the Up or Down pad to move the highlighted cursor to Auto Dial Press the Select pad The Auto Dial screen will appear Move to and select the first Auto Dial Number Press the Select pad to move the arrow to the next digit to the right When the arrow is on the digit to be changed press the Up pad to increase the number or press the Down pad to decrease it Press Select to set the value and mo
135. ptions 3 0 Operation is written for facility personnel responsible for the operation of the system It details the procedures required to start up each module and the system to transfer the load between the available sources and to shut down each module and the system Both manual and automatic operations are described Operator controls and displays including the solid state liquid crystal display LCD screen are illustrated and explained for the UPS module and the System Control Cabinet SCC 4 0 Maintenance lists routine maintenance checks and helps the user pinpoint and quickly resolve problems if they arise 5 0 Specifications and Ratings gives detailed specifications about the Series 600 UPS System This technical information is of use to installing contractors engineers and service personnel If you require assistance for any reason call the toll free Liebert Customer Service amp Support number 1 800 543 2378 For CS amp S to assist you expediently please have the following informa tion available Part Numbers Serial Numbers kVA Rating Date Purchased Date Installed Location Input Voltage Output Voltage Battery Reserve Time 1 0 INTRODUCTION 1 1 System Description The role of the parallel redundant multi module UPS system is to supply uninterruptible clean power to the critical load It maintains a full voltage low distortion output even if the utility source power sags or beco
136. r SCC and modules Output Trip pads to activate them 10 Horn Off This pad is used to silence the alarm horn after it is activated When this switch is SCC only pressed the alarm horn is silenced but the active and latched alarm messages remain on the screen The alarm messages still displayed stop flashing to indicate they have been acknowledged 11 Alarm Horn and This electronic horn sounds to alert nearby personnel whenever a new alarm Red LED SCC only occurs A red LED light emitting diode is located in the middle of the alarm horn 12 Emergency Module During an emergency pressing this guarded switch will transfer the load to bypass Off SCC only and then shut down the UPS modules The load will remain on bypass power Refer to 3 3 3 Shutdown Procedures 13 Battery Trip This pad can be used along with Control Enable to trip the module battery modules only disconnect MBD circuit breaker open disconnecting the battery from the UPS 14 Output Trip This pad can be used along with Control Enable to trip the module output circuit modules only breaker open disconnecting the module from the UPS system Operation 27 Figure 13 Switches Behind Control Panel Door 338 1000 kVA SCR Based Modules Item Description Location Function 1 Interlock Button Press this button to make authorized changes to any site parameter protected by on rear of Control Panel the Security Access function
137. r categories of discharge 0 30 seconds 31 90 seconds 91 240 seconds and Over 240 seconds Figure 28 Battery Cycle Monitor Screen UP CURSOR UP Liebert Battery Cycle Monitor Enable Battery Temperature Enable Battery Cycle Monitoring Summary 0 30 Seconds Discharge 11 31 90 Seconds Discharge eee 5 91 240 Seconds Discharge Over 240 Seconds Discharge Total Since 02 4 95 Operation 47 The Summary screen Figure 29 shows Total Number of Discharge Cycles Accumulated Battery Time Accumulated Battery Amp Hours Accumulated Battery Kilowatt Hours and Battery Tem perature During a battery discharge event the screen changes to show information about the present discharge cycle The screen displays Active Cycle Time in place of Accumulated Battery Time and shows Active Battery AH and Active Battery kWH instead of accumulated values Figure 29 Battery Cycle Monitoring Summary Screen Liebert SELECT EXIT Battery Cycle Monitoring Summary Total No of Gycles Accumulated Battery Time 15 min 32 sec Accumulated Battery AH Accumulated Battery KWH Battery Temperature 25 C 77 F Figure 30 shows a typical detail screen for the 91 240 Seconds Discharge category This informa tion can be collected remotely through the optional communications board and modem by
138. r controls available on this panel 4 Interlock Button Certain system setting can be changed only after pressing this button on rear of Control Panel 5 Module Output Circuit This manually operated circuit breaker connects the UPS module inverter output to Breaker CB2 the UPS System Control Cabinet 24 Operation Figure 10 Operator Controls 338 to 1000 kVA SCR Based Modules 2 Item Description Function 1 Input Circuit Breaker This manually operated circuit breaker provides power to the UPS module CB1 rectifier 2 Control Power Switch This manually operated switch provides power to the controls It is normally ON behind door Turn it OFF only for maintenance procedures 3 Operator Control Panel Refer to Figure 12 for controls available on this panel 4 Interlock Button Refer to Figure 13 on rear of Control Panel 5 Module Output Circuit This manually operated circuit breaker connects the UPS module inverter output Breaker CB2 to the UPS System Control Cabinet Operation 25 Figure 11 System Control Cabinet Operator Controls SCCB Pictured 3 4 Item Description Function 1 UPS Output Circuit This motorized circuit breaker connects the critical load to the UPS system output Breaker 2 System Bypass Circuit This motorized circuit breaker connects the critical
139. r to 3 2 3 Momen tary Overloads Whenever an overload condition occurs you should determine the cause of the overload If an overload condition exceeds the UPS system overload capacity or the capacity of the modules on line the UPS system initiates an automatic load transfer to the bypass line Figure 66 Current Versus Time Curve of Overload Capacity Series 600 Transfer Limits lt 1000 Load NO TRANSFER TRANSFER a 180 Load Liebert 100 150 Load Output Voltage levis eee a St ant memet Se es Regulation Point LOAD 125 Load 40ms 1s 30s 10m TIME 104 Operation 3 4 2 Automatic Transfers to Bypass 3 4 3 The UPS system will initiate an automatic load transfer to the bypass line if an overload condi tion exceeds the current versus time curve of system overload capacity or capacity of the modules on line or if specified UPS system faults occur Note that when the UPS system is operating in the non redundant mode an automatic transfer to bypass will be initiated when any UPS module is taken off line either automatically or manually Load On Bypass is illustrated in Figure 46 The Overload Transfer and Output Undervoltage alarm messages will initiate an automatic transfer to bypass and the Load On Bypass message will be displayed The status report screens will include the Automatic Transfer to Bypass message Other UPS system faults will initiate an automatic transfer to bypass follo
140. r to 3 3 1 Start Up Procedures for more details 60 Operation 3 1 9 Shutdown Procedures Screen Go to the SCC Master Menu and move the cursor to SHUTDOWN PROCEDURES Press the Select pad and the SCC Shutdown Procedures screen is displayed This screen contains the steps you must follow to perform a controlled shutdown of the UPS sys tem The instructions are listed so you can review them before performing the controlled shut down Figure 41 SCC Shutdown Procedures Screen Liebert SHUTDOWN PROCEDURES If load is not already being supplied by the bypass line select the LOAD TRANSFER PROCEDURE screen and follow the instructions to transfer the load to bypass Go to the modules s and follow the module SHUTDOWN PROCEDURES Press the ALARM RESET button to clear alarms which are no longer active if necessary for maintenance purposes open the static switch disconnect circuit breakers Wait approximately two 2 minutes before attempting any other action perform the shutdown procedure transfer the critical load from the UPS system to the bypass line Shut down each UPS module according to the module Shutdown Procedures Refer to 3 3 3 Shutdown Procedures for more details including emergency shutdowns Operation 61 Go to the module Master Menu and move the cursor to SHUTDOWN PROCEDURES Press the Select pad and the module Shutdown Procedures screen is displayed This two page screen co
141. r your nearest Liebert CS amp S office to report a problem or to request assistance Corrective Actions For each alarm message on the Operator Control Panel and the Remote Monitor Panel you can find the recommended corrective action in Table 1 of 3 0 Operation Recommended Test Equipment A list of recommended test equipment and tools required to maintain troubleshoot and repair the UPS module is given in Table 5 You may substitute instruments of equivalent range and accuracy All instruments should be calibrated and be within the current calibration cycle Cali bration data for the instruments should be maintained in historic files and the instruments labeled for audit and verification Table 5 Recommended Test Equipment and Tools Quantity Test Equipment Manufacturer Model or Type 1 Oscilloscope Tektronix or H P DC to 10 MHz Vertical Plug In Amp 2 Vertical Plug In Amp Tektronix or H P DC Coupled Differential and or Dual Trace 2 Voltage Probes Tektronix or H P 10X with 10 ft Cable 2 Voltage Probes Tektronix or H P 100X with 10 ft Cable 1 Multi Meter Simpson 260 with Test Leads 1 Digital Multi Meter Fluke 8030 with Test Leads 1 Tool Kit Liebert Corporation Maintenance 117 5 0 SPECIFICATIONS AND RATINGS 5 1 Rating The kVA and kW ratings and the nominal voltages and currents for continuous operation are listed on the unit nameplates inside Operator Control Panel door
142. ransfer will be uninterrupted If the Static Switch Unable alarm message is present for any reason the automatic transfer will be interrupted for 40 to 120 milliseconds Because of the reliability of the UPS components an interrupted load transfer is a very unlikely occurrence Your installation may include a Remote Emergency Power Off mode that can be initiated auto matically by a contact closure in the critical load equipment Refer to 3 2 8 Emergency Power Off 106 Operation 4 0 MAINTENANCE 4 1 If you require assistance for any reason call the toll free Liebert Customer Service amp Support number 1 800 543 2378 For CS amp S to assist you expediently please have the following informa tion available Part Numbers Serial Numbers kVA Rating Date Purchased Date Installed Location Input Voltage Output Voltage Battery Reserve Time Safety Precautions Observe the safety precautions in 1 0 Introduction ONLY qualified service personnel should perform maintenance on the UPS system Observe ALL of the WARNINGS 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 CAUTION Always identify connecting wiring prior to disconnecting any wiring Do not substitute parts except as authorized by Liebert Corporation Mai
143. rdware Inv Fuse Inverter Fuse OF UF Over Under Frequency Ov temp Over Temperature O volt Over Voltage O volts Over Voltage Ph Seq Phase Sequence Rect Fuse Rectifier Fuse Rexfer Retransfer Shutdn Shutdown Static Sw Static Switch Un volts Under Voltage Xfer Transfer 70 Operation Table 1 Alarm Messages Meaning and Corrective Action Alarm Cabinet Special Meaning and Message Location Functions Corrective Action in Brackets AC INPUT Input Fail MMU The rectifier input line voltage is outside of specified limits or the input circuit breaker is opened while the battery circuit breaker remains closed The battery supplies power to the critical load through the UPS inverter DC BUS DC Ground Fault MMU L S Either the positive or negative DC bus is grounded No transfer or shutdown occurs Contact Liebert Customer Service amp Support at once Do not attempt to locate or repair the fault DC Capacitor MMU D F S At least one DC capacitor fuse has opened The UPS module is Fuse Blown taken off line and the input and battery circuit breakers trip open Contact Liebert Customer Service amp Support at once Do not attempt to reset the circuit breakers Battery CB Open MMU R S The module battery circuit breaker MBD is open This circuit breaker can be opened either manually or automatically in a UPS shutdown procedure If the UPS is operating wi
144. rt up and shut down the UPS system and each module Shut down the system and all modules instantly in the event of an emergency Access status reports and history files Obtain a complete listing of the present status of the UPS system and all modules input output and battery voltage frequency and current readings and any alarms that may be present Review a complete history report of all events leading up to and immediately after a fault condition Examine an archive listing of all alarm conditions that have occurred over a period of time Make adjustments to programmable parameters access limited by Security Access function Set the date and the time functions Change the auto dial phone number and the modem options Select the number of auto retransfer attempts Make adjustment to the UPS output voltage before performing a manual load transfer Operation 23 Figure 9 Operator Controls 150 to 225 kVA left and 300 to 450 kVA right 1 5 Item Description Function 1 Input Circuit Breaker This manually operated circuit breaker provides power to the UPS module rectifier CB1 2 Control Power Switch This manually operated switch provides power to the controls It is normally ON behind door Turn it OFF only for maintenance procedures 3 Operator Control Panel Refer to Figure 12 fo
145. s to the UPS system per instructions on the SCC Load Transfer Procedures Screen Refer to 3 3 1 Start Up Procedures for more details NOTE Q If the system was shut down in response to an Emergency Off signal typically because of a load fault there may be alarm messages on the LCD screen that describe system conditions before or at the time of the shutdown Some or all of the alarm conditions may have already been resolved To clear these alarm messages make sure the critical load is on bypass power and turn off the control power see Figure 9 Figure 10 and Figure 11 Wait at least ten minutes for the control power circuitry to completely de energize After ten minutes turn control power back on and follow the startup procedures on the UPS and SCC screens Operation 59 From the module Master Menu move the highlighted cursor to START UP PROCEDURES Press the Select pad and the module Start Up Procedures screen is displayed This two page screen contains the steps you must follow to start up each UPS system The instructions are listed so you can review them prior to performing the start up Figure 40 Module Start Up Procedures Screen I SELECT MASTER MENU Liebert START UP PROCEDURES Verify that the control power is applied to the system control cabinet check the display on the system control cabinet Wait approximately two 2 minutes before attempting any other action Select SYSTEM CONFIGURATION screen to
146. sion and connection integrity Clean and tighten if necessary Note that when installing a new battery the initial torque value is 5 Ib in more than the retorque value Retorque values are Battery Manufacturer Battery Model Number Retorque Value Johnson Controls Batteries UPS12 270 FR 32 Ib in UPS12 310 FR 52 lb in UPS12 370 FR 52 lb in UPS12 475 FR 100 Ib in C amp D Batteries LS12 100 100 Ib in 12G 17 100 Ib in Power Batteries PRC12110X 65 Ib in PRC12120X 65 Ib in PRC12150X 85 Ib in PRC1290X 65 Ib in TC12110X 65 Ib in TC12120X 65 Ib in TC12150X 85 Ib in TC1290X 65 Ib in If you have a different model battery contact Liebert Customer Service and Support 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 Rack Mounted Batteries If the UPS system uses a battery other than a factory supplied Matching Battery Cabinet per form maintenance on the battery as recommende
147. ss line while the UPS system is being energized Depending on the reason for your UPS sys tem shutdown you may already have power through the bypass line You can determine this by observing the Monitor Mimic Display screen at the System Control Cabinet SCC after Control Power is available Step 1 Before you apply power to the UPS modules determine the position of the following cir cuit breakers and switches Bypass Input Breaker BIB If this circuit breaker is closed you may already have power to the critical load through the bypass line If this breaker is closed leave it closed If it is open leave it open until you are ready to energize the bypass line System Bypass Circuit Breaker SBB This motorized circuit breaker Figure 11 should be closed unless you are recovering from a Remote Emergency Power Off You may already be supplying power to the critical load through this breaker If this breaker is open you will be instructed to reset it later in this procedure UPS Output Circuit Breaker This motorized circuit breaker Figure 11 should be open Static Switch Disconnects These manually operated switches Figure 11 will be in the ON closed position unless you are recovering from a shutdown If these switches are OFF open you will be instructed to reset them and turn them to ON later in this procedure NOTE Q Depending on SCC model the static switch disconnects can be two circuit breakers or plug in connec
148. stem bypass circuit breaker and opens the UPS output circuit breaker Whenever you have an overload condition you should determine the cause of the overload Redundant If the multi module UPS system includes one more module than the number required to supply the critical load the UPS system can operate in the redundant mode This means that the load will remain on the UPS system if one of the modules is disconnected because of an overload an internal fault or for maintenance If the additional module is not included in the system design or if the additional module is disconnected from the critical bus the UPS system operates in the non redundant mode Bypass Internal The UPS control logic initiates an automatic transfer to the bypass source if the overload current versus time curve is exceeded or if specified UPS system faults occur You can also manually transfer the load to the bypass without interruption if you must take the UPS module out of ser vice for maintenance The internal maintenance bypass will allow most key components and operating modes to be checked without disturbing the critical bus However certain key power carrying components such as the output and bypass circuit breakers will require complete system shutdown or isola tion through an external maintenance bypass cabinet for 10096 service Maintenance Bypass The installation of a Maintenance Bypass Switchboard is recommended to allow you to totally iso
149. stem control logic at the SCC 1 Determines what overload conditions can be sustained without a transfer to bypass 2 Initiates an automatic transfer to bypass to sustain an overload 3 Caninitiate an automatic retransfer to the UPS after a system overload has been cleared 4 Initiates an automatic transfer to bypass and emergency module shutdown when a specified UPS fault occurs The control logic at each UPS module 1 Determines what overload conditions can be sustained by the module while it is on line 2 Automatically takes the UPS module off line and initiates an emergency module shutdown when selected UPS faults occur Refer to 3 4 Automatic Operations for more details Manual procedures available to the operator include Start Up Load Transfers and Shutdowns These procedures are performed by using the operator control panel and some manually operated circuit breakers and switches The LCD display at each UPS cabinet includes a screen to help you with each manual procedure by listing each step you must perform This section lists step by step controls to operate and conditions to observe in the following man ual procedures 1 Start Up including initial start up recovering from input power failure recovering from battery shutdown and recovering from shutdowns for emergencies or maintenance procedures 2 Load Transfers including transfers from UPS system to bypass and retransfers from bypass to the UPS system
150. t Screen Event History Report Screen History Status Report Screens Battery Cycle Monitor Screen Battery Cycle Monitoring Summary Screen Typical Data on Discharge Cycles of 91 to 240 Seconds Duration During the Recording Period SCC System Configuration Screen Date Sereen azad seat deret tA abba hie Alin bad dah eee ER m ah ati DO h athe Time dus p o xe pd is ox e eek UR Auto Dial Setting Screen s ool is ede e Ie RR HER Rr BERE EE hi e pet Modem Baud p LEEREN MER ee RD he EORR ete m NR ee Maximum Auto Retransfer Attempts Screen Module Alarm Limit Settings Screen Load Transfer Procedures Screen SCC Start Up Procedures Screen Module Start Up Procedures Screen SCC Shutdown Procedures Screen Module Shutdown Procedures Screen Battery Time Screen Example
151. t equalize time STOP EQUALIZE CHARGE This selection lets the operator halt the equalizing charge to the battery at any time whether the circuit was activated automatically or manually MANUAL MODE This mode enables the operator to manually initiate a battery equalize charge to raise the DC bus voltage to correct a non uniformity in the individual cell voltages or specific gravity readings AUTO MODE SCC only When the battery recharge control logic is in the AUTO MODE the UPS module battery chargers attempt the equalization process only if the EQUALIZE TIME PERIOD is greater than zero the battery voltage has been at or below the Battery Discharging alarm limit for longer than 30 seconds and the battery breakers MBD are closed Operation 67 3 1 13 Alarm and Status Messages Module Status Messages The module status messages indicate how many UPS modules are included in the system and the present status of each module The following status messages may appear in the module status area 1 MODN A module status message line is displayed for each UPS module in the system Up to six 6 modules may be included in a multi module system The N in the message will indicate a specific UPS module number 1 through 6 2 ON LINE The UPS module output circuit breaker is closed and power from the module is available to the SCC The module output is sharing the critical load if the UPS Output Breaker is closed 3 OFF LINE The UPS
152. tended with lower temperatures 25 C is recommended Specifications and Ratings 119 5 3 5 4 Adjustments All adjustments are set at the factory or during start up and normally do not have to be field read justed Input Current Limit Normal 115 on generator 100 Battery Charge Current Limit Normal 10 on generator 1 Battery Equalize Charge Set at start up dependent on battery characteristics DC Over Voltage 445 volts for models with nominal 180 cell battery Low Link 600 volts for model with nominal 240 cell battery High Link Overload Alarm 104 normal load Output Frequency Tolerance 0 5 Hz Output Voltage Nominal operator adjustable 5 Line Drop Compensation 0 to 5 Set at start up to match load characteristics If signifi cant additional loads are connected call Liebert Customer Service and Support Battery Operation The separate battery manufacturer s manual provides the necessary information for the installa tion operation and maintenance of the battery Use the battery manual in conjunction with this manual The float charge voltage for a battery is equal to the number of cells in series making up the bat tery multiplied by the charge voltage for each cell Since the charging voltage level is critical to proper battery operation refer to your battery man ual for information regarding your system For models with nominal 180 cell battery Low Link the DC b
153. tered you will get a report from the SCC B control B return ABN N 1 to 6 return Displays Event History Report screen starting with the most recent frame and then scrolling back through earlier frames C return ACN N71 to 6 return Displays History Status Report screen starting with the most recent frame and then scrolling back through the earlier frames F no return Freezes data output This stops the data scrolling on the monitor to allow closer study or a printout This is a toggle switch command Press the F key again to resume data scrolling G return Resets unfreezes and clears the History Status Report memory buffer This erases the alarm messages and meter indications that were stored immediately before and after a significant system fault NOTE Do not reset the History Status Report memory buffer until operation and maintenance personnel have reviewed it as a troubleshooting tool Q no return The data output stops quits The UPS communication system remains on stand by ready to receive the next communication command NOTE To return to the beginning of the Event History or History Status Report press Q then request your desired report again d mm dd yy return This entry sets the date month day year in the UPS system clock You must include the slash as you key in the date Note that the d command must be lower case t hh mm ss return This entry sets the time
154. teries N WARNING EXERCISE EXTREME CARE WHEN HANDLING UPS CABINETS TO AVOID EQUIPMENT DAMAGE OR INJURY TO PERSONNEL REFER TO SEPARATE INSTALLATION MANUAL FOR EQUIPMENT HANDLING INFORMATION AND INSTALLATION PROCEDURES FOLLOW ALL BATTERY SAFETY PRECAUTIONS IN 4 0 MAINTENANCE 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 IN CASE OF FIRE INVOLVING ELECTRICAL EQUIPMENT USE ONLY CARBON DIOXIDE FIRE EXTINGUISHERS OR OTHERS APPROVED FOR USE IN ELECTRICAL FIRE FIGHTING 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 SYSTEM BYPASS SBB AND UPS OUTPUT CIRCUIT BREAKERS 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 FR
155. teur mis la terre peut se traduire en un choc lectrique La possibiliti de tels chocs sera r duit si de telles mises la terre sont d branch es pour la dur e de l installation ou de l entretien 112 Maintenance Les accumulateurs plomb acide pr sentent un risque d incendie parce qu ils g n rent des gaz l hydrog ne Les proc dures suivantes devront tre respect es 1 NE PAS FUMER lorsque pr s des accumulateurs 2 NE PAS produire de flammes ou d tincelles pr s des accumulateurs 3 D charger toute lectricit statique pr sente sur votre corps avant de toucher un accumulateur en touchant d abord une surface m tallique mise la terre DANGER L lectrolyte est un acide sulfurique dilu qui est dangereux au contact de la peau et des yeux Ce produit est corrosif et aussi conducteur electrique Les proc dures suivantes devront tre observ es 1 Porter toujours des v tements protecteurs ainsi que des lunettes de protection pour les yeux 2 Sil lectrolyte entre en contact avec la peau nettoyer imm diatement en rincant avec de l eau 3 Sil lectrolyte entre en contact avec les yeux arroser imm diatement et g n reusement avec de l eau Demander pour de l aide medicale 4 Lorsquel electrolyte est renvers e la surface affect e devrait tre nettoy e en utilisant un agent neutralisant ad quat Une pratique courante est d utiliser un m lange d approximativement une livre 50
156. th this breaker open the critical load is not protected from loss of the utility source power After AC power is restored and the DC bus is at 10096 operating voltage manually close the battery circuit breaker so the rectifier can charge the battery Battery MMU R S The battery is discharging This occurs whenever the battery Discharging supplies power to the load for more than 5 seconds because of input power failure a rectifier problem or an overload condition If the input power or a source of auxiliary power is restored to the UPS module the UPS automatically returns to normal operation Watch the battery voltage carefully Reduce the load begin controlled shutdown to extend the battery back up time Reset the UPS alarms after the input power is restored The message clears after 30 seconds Low Battery MMU R S The battery voltage is approaching the minimum discharge voltage Warning 5 or more minutes remaining Complete the controlled shutdown of the critical load Reset the alarms if the input power is restored before shutdown Low Battery MMU D F L S The battery voltage has decreased to the minimum discharge value Shutdown The UPS module is taken off line no power to the critical load and the battery and input circuit breakers trip open Perform a UPS system startup procedure when AC power becomes available DC Over Voltage MMU D F L S The maximum preset value of the DC Bus voltage has been Shutdown exceeded Th
157. the LCD display Move the highlighted cursor to Start Up Procedures use the Up and Down pads Press the Select pad to display the Start Up Procedures screen Return to this screen whenever you need to see the start up instructions On the LCD display select System Configuration from the Master Menu Verify that all of the information contained in the System Configuration screen is correct When the data is correct press the Select pad until the display returns to the Master Menu Perform a module start up procedure at each module in your UPS system until all required mod ules are on line Then return to the SCC to complete your UPS system start up Use the Monitor Mimic Display screen at the SCC to determine the condition of the UPS system Press the Alarm Reset pad to clear the Alarm Messages Refer to Table 1 for an explanation of any remaining alarm messages except Load On Bypass Call Liebert Customer Service and Sup port if you cannot clear the remaining alarm messages If the only alarm message displayed is Load On Bypass the UPS system is now ready to provide filtered uninterruptible power to the critical load equipment Refer to 3 3 2 Load Transfer Procedures to retransfer the load from the bypass line to the UPS system Figure 61 SCC Start Up Procedures Screen 0 Liebert START UP PROCEDURES Wait approximately two 2 minutes before attempting any other action Select SYSTEM CONFIGURATION screen to verify that th
158. the current configuration of the UPS system It also enables the operator to reset the date time and dial out phone numbers The SCC current rating can also be adjusted lower than design maximum The operator can view but cannot change any of the settings unless the Interlock Security Access button is pressed LIMIT SETTINGS This security access display shows the present UPS system alarm limit settings The operator can view the settings but they should not be changed without consulting Liebert Customer Service and Support LOAD TRANSFER PROCEDURES SCC only This screen specifies all of the steps required to manually transfer the critical load between the UPS system and the bypass source Comparisons of the voltage frequency and phase syn chronization of the UPS system output and the bypass line are also illustrated to aid in the transfer or retransfer procedure START UP PROCEDURES This two page screen lists step by step procedures to start the UPS system and the modules SHUTDOWN PROCEDURES This two page screen lists the proper sequence of steps to shutdown the UPS system and the modules for maintenance or repairs The steps instruct the operator to transfer the critical load to bypass open the battery circuit breakers and open the UPS module output and input circuit breakers to shut down and isolate the modules The critical load will remain on bypass power unless circuit breakers outside the UPS system are also opened BATT
159. through Auto Transfer to Bypass if load is on UPS Auto Dial initiated through Module 1 6 off line E message displayed on Status Report screens F freezes History Status Report memory buffer L latches the displayed alarm message Remote Alarm Contact optional on MMU S Summary Alarm System or Module initiated X message displayed on Monitor Mimic screen and audible alarm Operation 75 3 1 14 Communication Interfaces Your Liebert Series 600 UPS includes the following communication ports Worldwide reporting to a remote terminal through a modem Reporting to a local terminal no modem required Reporting to a local monitor only Site reporting to Liebert SiteScan Central Monitoring System Selected alarm messages to a Liebert Remote Monitor Panel and to contact closures for cus tomer use external communication devices including the modem are optional equipment Connections to communication ports are made by wiring cables to terminal boards at the SCC Connection points are shown on the Control Wiring Interconnect Diagram Contact Liebert Customer Service and Support for assistance when attaching an external device to your UPS system Any terminal that accepts the standard 7 bit ASCII codes and conforms to the data link require ments can be used to interface with the Series 600 UPS If a printer is used the terminal must support it The UPS does not send or receive any printer contro
160. through the UPS system A three module system designed for redundant operation is shown A multi module UPS system may include up to six 6 modules for each System Control Cabinet SCC Figure 18 Monitor Mimic Display Screen Examples Normal Power Flow Gi Liebert BYPASS INPUT B C ZC A 480V 480V 480V 60 0 Hz UPS INPUT PWR __ SAB 480V 480V 480V MOD 1 ON LINE MOD 2 ON LINE MOD 3 ON LINE UPS INPUT PWR SA B 2 480V 480V 480V 350A 350A 350A BATTERY VOLTS 405 AMPS 15 CHARG UPS RATINGS SCCB 1600 OUTPUT VOLTAGE PAB SB C ZC A 480V 480V 480V 60 0 Hz OK to Transfer Static Switch Connected SCC 0 Liebert UPS RATINGS AP640 14 RATED 338 KVA OUTPUT VOLTAGE ZA B ZB C ZC A 480V 480V 480V 60 0 Hz Module LOAD 627 KVA 502 KW SA SB C 755A 755A 755A 3 OF 3 MODULES CONNECTED REDUNDANT LOAD 270 217 KW ZA SB ZC 325A 325A 325A 36 Operation Figure 19 Monitor Mimic Display Screen Examples Utility Fail Liebert BYPASS INPUT PAB 2 ZC A ov OV 0 Hz UPS INPUT PWR SA B B C OV ov MOD 1 ON LINE SUM ALM MOD 2 ON LINE SUM ALM MOD 3 ON LINE SUM ALM UPS INPUT PWR ZA B ov ov ov 0A 0A 0A BATTERY VOLTS 360 AMPS 645 DISCHARG UPS RATINGS SCCB 1600 OUTPUT VOLTAGE SAB SBC OCA 480V 480V 480V 60 0 Hz Not OK to Transter Static Switch Connected SCC D
161. tions on a drawout carriage assembly The location could be at the front right or rear of the cabinet Refer to the drawing of the SCC cabinet selected for your UPS system 92 Operation NOTE Q If the system was shut down in response to an Emergency Off there may be alarm messages on the LCD screen that describe system conditions before or at the time of the shutdown Some or all of the alarm conditions may have already been resolved To clear these alarm messages turn off the control power see Figure 9 Figure 10 and Figure 11 Wait at least ten minutes for the control power circuitry to completely de energize After ten minutes turn control power back on and wait two minutes before continuing CAUTION If you are recovering from a UPS system shutdown for maintenance procedures verify that all of the SCC doors are closed and latched All test equipment must be removed from the system All electrical connections must be secure Power must be provided to the UPS controls so the operator can use the LCD display and so the system logic can perform its control functions Note that you can use the LCD display to monitor UPS system status even when the UPS modules are not operating During a start up procedure power is supplied to the critical load through the UPS internal bypass line while the UPS modules are being energized Depending on the reason for your UPS system shutdown you may already have power through the by
162. ts the utility AC power to DC and supplies DC power to the UPS module inverter while simultaneously float charging the battery plant Each UPS module inverter converts DC to AC and furnishes AC power to the critical bus The System Control Cabinet SCC is the tie point for the paralleled modules and monitors and controls the critical bus performance Input Power Failure If the utility source power fails or is outside the acceptable range the battery plant becomes the primary supplier of DC power to the inverter Recharge After the utility source power is restored or an alternate power source becomes available each rectifier charger slowly walks in to once again power the inverters and recharge the battery plant Overload Overloads in critical systems may be caused by inrush currents during connected equipment start up or by faults in the critical load The Liebert Series 600 UPS system can maintain full output voltage regulation while sustaining the following overloads Up to 150 for 30 seconds Up to 125 for 10 minutes Up to 104 for an indefinite period of time Also up to 1000 of the rated current can be supplied from the bypass source through the static switch for clearing momentary up to 40 milliseconds faults above 15596 of rated SCC current The critical load remains on the UPS modules for the above conditions If the UPS overload capac ity is exceeded an automatic transfer to bypass is initiated which closes the sy
163. ture of your communications software or a separate screen capture program to save all or part of the data to disk Hint If you save the file with an extension of txt it can then be imported into a spreadsheet program and converted to worksheet format terminate your connection to the Series 600 press the key and then the Enter key The UPS will hang up its modem and await your next call Local Reporting to a Terminal This port sends UPS system status and history information to a local terminal in RS 232 format No modem is required The Present Status Report screen is sent to the local terminal whenever a new alarm occurs Commands for requesting information and for changing the date and time are in Table 3 Local Reporting to a Monitor A monitor connected to this port will display the same information being sent to the local termi nal This monitor does not display information going out through the modem port Site Reporting SiteScan or SNMP The SiteScan port sends UPS system information to a Liebert SiteScan Central Monitoring Sys tem UPS operation environmental control systems and facility security can all be monitored from a single location If your site has SNMP communications the optional Liebert SiteNet Integrator allows you to monitor the status of all the dry contact outputs of the Series 600 The Integrator module moni tors up to ten digital inputs and two temperature humidity sensors and can control two
164. u lating shoes for isolation from direct contact with the floor earth ground Unless all power is removed from the equipment one person should never work alone A second person should be standing by to assist and summon help in case an accident should occur This is particularly true when work is performed on the battery Three types of messages are used throughout the manual to stress important text Carefully read the text below each Warning Caution and Note and use professional skills and prudent care when performing the actions described by that text A Warning signals the presence of a possible serious life threatening condition For example N WARNING LETHAL VOLTAGES MAY BE PRESENT WITHIN THIS UNIT EVEN WHEN IT IS APPARENTLY NOT OPERATING OBSERVE ALL CAUTIONS AND WARNINGS IN THIS MANUAL FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY OR DEATH DO NOT WORK ON OR OPERATE THIS EQUIPMENT UNLESS YOU ARE FULLY QUALIFIED TO DO SO NEVER WORK ALONE A Caution indicates a condition that could seriously damage equipment and possibly injure per sonnel For example CAUTION Make sure you understand the proper sequence before operating any circuit breaker Operating a Maintenance Bypass circuit breaker out of sequence could cut off power to the critical load A Note emphasizes important text If the note is not followed equipment could be damaged or may not operate properly For example NOTE If the UPS system has a blown fuse
165. ures for more details including module shutdowns for service and emergency shutdowns 62 Operation 3 1 10 Battery Time Screen Module Only At the Master Menu move the highlighted cursor to BATTERY TIME Press the Select pad and the Battery Time screen is displayed When AC power is not available to the UPS module the UPS inverter uses DC power from the battery to supply the critical load This screen helps the operator assess his power resources to determine if and when the critical load shutdown procedures need to be started The Battery Time screen is a line graph that tracks the present battery voltage versus the elapsed time that the battery has been discharging Figure 43 As the battery voltage decreases the line representing it moves closer to intersecting the line that represents the battery shutdown voltage When the battery starts to discharge the screen displays a 15 minute graph If the battery has been providing power for more than 15 minutes the screen displays a 30 minute graph If battery power is still available after 30 minutes a 60 minute graph is displayed Figure 44 Figure 43 Battery Time Screen Example 15 Minute Discharge SELECT MASTER MENU Low Battery Warning Calculated Time EC MEI Total 00 15 Remain 0 01 E HS 380 imp Battery Shutdown 384 ms Rated Time Hrs Min O Battery Charge 5 l feta 00 10 Remain 0 09 TM ER ns
166. us screen to see the calculated time remaining based on actual usage during the discharge period Operation 57 3 1 7 Load Transfer Procedures Screen Go to the SCC Master Menu and move the highlighted cursor to LOAD TRANSFER PROCE DURES Note that this screen is displayed at the System Control Cabinet but is not required at the UPS modules Press the Select pad and the Load Transfer Procedures screen is displayed The Load Transfer Procedures screen contains instructions to transfer the critical load between the UPS system and the bypass line Comparisons of the UPS and bypass voltage frequency and phase synchronization are displayed along with transfer status messages and an indication of cir cuit breaker overlap time The metered parameter values on the Load Transfer Procedures screen are updated at half second intervals Refer to 3 3 2 Load Transfer Procedures for more details Figure 38 Load Transfer Procedures Screen 1 SSI 2 VOLTAGE COMPARISON Liebert a SYNCHRONIZATION A B B C FREQUENCY 30 0 30 UPS 480 480 480 60 0 Hz BYPASS 481 480 479 4 60 0 Hz 3 MANUAL ON UPS d TRANSFER INSTRUCTIONS Rd 1 Adjust the UPS voltage until it equals the bypass voltage with the VOLTAGE ADJUST pot TRANSFER PROHIBIT gt ifthe OK TO TRANSFER message is highlighted simultaneously press the BYPASS and CONTROL ENABLE buttons Verify that the transfer was successful by checking the break
167. us voltage range is 387 to 423 VDC Battery voltage at end of discharge is 287 VDC at the UPS terminals 290 VDC at the bat tery The number of battery cells required will range from 172 to 182 depending on your applica tion For models with nominal 240 cell battery High Link the DC bus nominal voltage range is 527 to 576 VDC Maximum equalize voltage is 585 VDC Battery voltage at end of discharge is 384 VDC at the UPS terminals 887 VDC at the battery The number of battery cells required will range from 232 to 244 depending on your application 120 Specifications and Ratings 5 5 Electrical Specifications RECTIFIER INPUT Input Voltage Standard voltages 208 VAC 480 VAC 600 VAC Other voltages available on request 3 phase 3 wire plus ground Voltage Range 10 15 no battery discharge at 20 Frequency Range 57 Hz to 63 Hz Subcycle Magnetization Inrush 150 kVA to 450 kVA with optional input isolation transformer and 500 kVA through 1000 kVA Up to 6 times normal full load input current Up to 4 times normal full load input current with optional input filter Input Current Walk In From 20 to 100 in 15 seconds Current Limit Maximum of 125 normal full load input current Current Distortion 150 kVA to 450 kVA Less than 30 THD typical at normal full load input current Less than 7 reflected THD typical at normal full load input current with opti
168. ust be closed manually Isolation Transformer The input isolation transformer has a dry type core and copper windings with class H insulation The transformer on 500 to 1000 modules has a delta primary with delta and wye secondary windings The optional rectifier input transformer on 150 to 450 kVA modules has a delta pri mary and a single delta secondary winding The isolation transformer provides the initial step of critical bus isolation This reduces the AC shock hazard at the battery and at other DC compo nents and prevents a DC fault from disrupting upstream AC circuitry The transformer has a nominal tap and one tap 6 below the rated nominal input voltage nor mally used for 460 VAC input Input Current Limit AC input current sensing transformers CTs are used to measure current levels on the primary side of the isolation transformer Control circuitry connected to the C Ts restricts the AC current to less than 12596 of the full input current rating by reducing the battery charging voltage This current limit is adjustable from 100 to 125 and is factory set at 11596 A second level of input current limit is initiated by an external contact closure field supplied for use with back up gener ator and is adjustable from 85 to 10096 factory set at 100 During a start up procedure the current slowly ramps up walks in from 2096 of the rated input current to 100 over a 15 to 21 second period The maximum rate of change
169. ut during the short time gap bypass power is supplied to the critical load through the solid state static switch 20 Theory of Operation Transfer Retransfer Conditions 1 Automatic Transfers to Bypass Critical bus conditions that will initiate an automatic transfer of the critical load from the UPS system to the bypass source are a System Overload overcurrent condition in excess of the rated full load current of the System Control Cabinet SCC b Output Overload overcurrent condition in excess of the current versus time overload capacity curve based on total rated full load current of the modules ON LINE Over Under Voltage OV UV critical bus voltage is outside the allowable tolerance d UPS Module non redundant Inoperative an essential UPS module is taken OFF LINE for one of the reasons below 1 Battery discharged to the shutdown voltage 2 Inverter overload capacity exceeded 3 Inverter or rectifier fault condition power logic or over temperature present or imminent 4 Failure of UPS module logic or logic power e System Control Logic SCC 1 Emergency Module Off EMO circuit activated 2 Failure of UPS system logic or logic power 2 Manual Transfers Manual transfers may be initiated at any time provided no transfer inhibition conditions are present 3 Transfer Inhibited A manual transfer to the bypass source shall be inhibited if any of the following conditions exist e a B
170. ve to the next digit 6 After all of the changes have been made press the Select pad again to return to the System Configuration screen 7 Ifrequired go to the Second Number screen and enter the correct number ape Er PS 1 Hayes is a Registered Trademark of Hayes Microcomputer Products Inc 52 Operation Modem Baud Rate This sets the transmission rate at which the system relays data to a terminal through the modem Figure 35 Modem Baud Rate AUTO DIAL SETTING SCREEN EXIT Enable Auto Dial sss YES Modem Baud Rate 2400 Second Number Modem Initialization String To change the modem baud rate do the following at the SCC 1 From the System Configuration screen press the Up or Down pad to move the highlighted cursor to Auto Dial 2 Move to and select the Modem Baud Rate Press the Up or Down pad to display the desired baud rate em UP CURSOR UP Liebert DOWN CURSOR DOWN SELECT CHOOSE Auto Dial Number 1 800 555 1234 0 000 000 0000 4 Press the Select pad to set the baud rate and to return to the System Configuration screen Operation 53 Maximum Auto Retransfer Attempts When a UPS output overload condition exceeds a pre programmed current versus time window based on the SCC current rating the UPS automatically transfers the critical load to the bypass line After the overload condition has been corrected t
171. verage current by 1096 or Unbalanced more for four 4 hours Contact Liebert Customer Service amp Support If the condition persists transfer the load to the bypass line Control Power SCC LS The logic control power supply from the UPS output is not operating Fail MMU L RS properly The UPS module continues operating but will shut down if the input power fails The SCC continues operating but will shut down if the bypass power fails Contact Liebert Customer Service amp Support immediately Output Over SCC 1 5 Output frequency differs from the nominal 60 Hz by more than 0 6 Under Frequency Hz No transfer or shutdown occurs Contact Liebert Customer Service amp Support at once Output Under SCC D F L S The UPS module output voltage is under the minimum 12 Voltage deviation from nominal The load automatically transfers to the bypass line If the alarm condition is no longer present reset the alarm and retransfer the load from bypass to UPS Contact Liebert Customer Service amp Support if alarm persists Output Over SCC D F L S The UPS system output voltage is above the maximum 10 Voltage deviation from nominal The load automatically transfers to the bypass line All UPS modules are taken off line and are shut down Contact Liebert Customer Service amp Support at once Do not attempt to reset circuit breakers Table 1 Abbreviations D auto dial L latches E reports only R remote F freezes S sum
172. verify that the correct model is displayed Select WALK IN screen and do the following a Close module input circuit breaker Verify that the DC voltage bar on the display begins to gradually move io the right and the AC input current bars do not move to the right more than 10 4096 for modules with input filters after the transformer inrush has subsided GL Liebert START UP PROCEDURES Cont d Verify that the output voltage bar moves to the right after the DC bus bar has reached the 30 point Both bars should setile near their respective 100 levels if anything happens on the display not mentioned in a or b immediately open the module input circuit breaker and investigate If step 4 is successful select MONITOR MIMIC screen and verify module DC bus and output voltages are ai proper nominal level If so close module battery circuit breaker If no alarms are present on the MONITOR MIMIC screen the module may be placed online by closing the module output breaker Prior to this procedure supply power to the critical load through the bypass line at the SCC When you close the UPS module input breaker power is provided to the UPS rectifier The mod ule DC bus voltage ramps up to the nominal battery voltage and the UPS inverter turns on when the DC bus reaches the proper voltage You can then close the battery circuit breaker MBD and the UPS module output circuit breaker to place the UPS module on line Refe
173. voltage bar on the display begins te gradually move to the right and the AC input current bars do not move to the right more than 10 40 for modules with input filters after the transformer inrush has subsided START UP PROCEDURES Cont d Verify that the output voltage bar moves to the right after the DC bus bar has reached the 90 point Both bars should settle near their respective 100 levels 1f anything happens on the display not mentioned in a or b immediately open the module input circuit breaker and investigate If step 4 is success ul select MONITOR MIMIC screen and verify module DC bus and output voltages are at proper nominal level If so close module battery circuit breaker If no alarms are present on the MONITOR MIMIC screen the module may be placed online by closing the module output breaker Select the Walk In screen on the LCD display Step 3 To energize the UPS module manually close the input circuit breaker CB1 Figure 9 and Figure 10 This will provide power to the rectifier Use the Walk In screen to monitor the Module DC Bus voltage N WARNING IF ANY ABNORMAL SITUATION OCCURS DURING THIS WALK IN PROCEDURE OPEN THE INPUT CIRCUIT BREAKER AND INVESTIGATE THE PROBLEM EACH INPUT AMPS BAR SHOULD BE WITHIN 10 OF THE AVERAGE BAR LENGTH CALL LIEBERT CUSTOMER SERVICE AND SUPPORT IF YOU NEED HELP The Input Amps bars should settle at about 1096 after the momentary inrush
174. wed immediately by the shutdown and isolation of the UPS modules Refer to 3 4 5 Automatic Emergency Modules Off In an automatic transfer to bypass the UPS Output and System Bypass circuit breakers do not overlap as they do in a manual transfer The static bypass switch is fired closed the UPS Output circuit breaker is opened and the System Bypass circuit breaker is closed Bypass power is sup plied to the critical load through the static bypass switch during the short time while both circuit breakers are open NOTE Q A load transfer to the bypass line will be completed whenever an automatic transfer to bypass is initiated If the Ok to Transfer condition is present the load transfer will be uninterrupted If the Static Switch Unable alarm message is present for any reason the automatic transfer will be interrupted for 40 to 120 milliseconds Because of the reliability of the UPS components an interrupted load transfer is a very unlikely occurrence Automatic Retransfers to UPS Automatic Retransfer to UPS is an option that you can select from the SCC System Configuration screen If you do not want the UPS system to initiate any automatic retransfers set Max Auto Rexfer Attempts to zero 0 In an automatic retransfer the two motorized circuit breakers System Bypass and UPS Output are both closed simultaneously for a short period of time overlap The following critical bus conditions must be present to initiate an automatic retr
175. wings for optional cabinets not shown Introduction 3 If the load surpasses the overload capacity of the UPS the load is automatically transferred to bypass without interruption When the load returns to within the UPS rating it is either auto matically or manually returned retransferred to the UPS How and when the load is returned to the UPS depends on several factors how long the overload lasted how many overload conditions occurred before transfer whether there is an imminent failure of any part of the UPS etc Refer to 3 4 Automatic Operations In the unlikely event of a fault within the UPS the SCC control logic which continuously moni tors all critical circuits within the UPS system transfers the load to bypass without interruption and simultaneously sets off local and remote alarms If a fault is detected in an individual UPS module that module is automatically disconnected from the critical bus and shut down A Mod ule Off Line status message will appear at the SCC display The module can be manually returned to service when the fault has been corrected If the multi module UPS system is operating in the redundant mode at least one extra module is available for the connected critical load the load will remain on the UPS system if one individual module is disconnected from the critical bus off line If the UPS system is operating in the non redundant mode the load will be automatically transferred to bypass if a
176. xtended outages or deep sags of more than 15 minutes the shutdown voltage limit will ramp up gradually to this 60 minute limit to prevent lengthy discharge and possible battery damage The battery circuit breaker opens when the battery voltage and the shutdown limit are equal for five seconds See the Battery Time screen for more information Also refer to the battery manufacturer s manual 56 Operation Battery Rating 100 modules only This setting is the full load discharge rating of the bat tery in kilowatts for the rated backup period A typical rating might be 500 kW for 15 minutes Battery Rating modules only This setting is a battery discharge rating in kilowatts under partial load for an extended period typically 60 minutes The UPS uses the two battery shutdown voltage settings and the two battery discharge ratings in computing rated and calculated time remaining during a discharge event Q NOTE The Low Battery alarm setting is designed to be useful at full load battery discharge rates If the discharge period extends past 15 minutes i e the load on the UPS is less than full capacity the Battery Shutdown voltage setting is gradually and automatically increased to protect the batteries from deep discharge The Low Battery alarm setting is not automatically increased and should not be relied upon as an indicator of battery time remaining Instead the operator should consult the Battery Time screen or Present Stat
177. y Line Drop Compensation Range Up to 5 automatic load dependent Frequency 59 5 Hz to 60 5 Hz Slew Rate 0 06 Hz per second Phase Balancing 120 1 for balanced loads 120 3 for 50 unbalanced loads Voltage Imbalance 20 Unbalanced Load 50 Unbalanced Load 1 from the arithmetic average of the 3 phases 2 from the arithmetic average of the 3 phases Voltage Transient 20 Load Step 30 Load Step 100 Load Step Loss or Return of AC Input Power Manual Transfer of 100 Load 4 from the average peak voltage 5 from the average peak voltage 7 from the average peak voltage 1 from the average peak voltage 4 from the average peak voltage Voltage Transient Recovery Time To within 1 of steady state output voltage within 50 milliseconds Voltage Harmonic Content Maximum 5 RMS total for any combination of linear and nonlinear loads Maximum 3 RMS single for linear loads Overload at Full Output Voltage 104 of full load rating continuously 125 of full load rating for 10 minutes 150 of full load rating for 30 seconds with 2 voltage regulation Fault Clearing 300 of normal full load current subcycle 1000 of normal full load current up to 40 milliseconds with bypass available 122 Specifications and Ratings Liebert Series 600 amp 600T UPS Multi Module Three Phase 150 kVA to 1000 kVA 6
178. your application 2 Battery Racks or Cabinets The battery racks are specifically designed for stationary service batteries They are painted with electrolyte resistant paint for corrosion resistance Battery cabinets are available for 150 through 450 kVA modules 3 Module Battery Disconnect The UPS system utilizes a separate Module Battery Disconnect for remotely located batteries A sensing circuit in the UPS module set at the battery low voltage limit trips the Module Battery Disconnect to safeguard the Battery from excessive discharge The Module Battery Disconnect has an undervoltage release mechanism designed to ensure that during any shut down or failure mode all battery potential is removed from the UPS system 4 Input Distortion Filter This filter reduces rectifier input current harmonic distortion to less than 4 THD 7 THD for 150 to 450 modules It is factory installed within the UPS This filter also improves the input power factor to better than 0 91 lagging 5 Isolation Transformers For 150 to 450 kVA modules an optional rectifier input isolation transformer is available in a matching transformer cabinet Input isolation is standard in the larger modules 500 kVA and up A bypass isolation transformer is also available and will fit into the same matching cabi net 6 Three Breaker Maintenance Bypass This switchboard provides make before break maintenance bypass It includes UPS Bypass Input Breaker BIB Maintena
179. ypass frequency deviates 0 5 Hz from the nominal b UPS system to bypass voltage difference AV exceeds a predetermined percentage normally 5 Static switch disconnects manual switches open d OKto Transfer signal from the control logic is not present e NOTE Q A load transfer to the bypass line will be completed whenever an automatic transfer to bypass is initiated If the Static Switch Unable alarm message is present for any reason including a 20 phase lock synchronization error the automatic transfer will be interrupted for 40 to 120 milliseconds Because of the reliability of the UPS components an interrupted load transfer is a very unlikely occurrence 4 Automatic Retransfers to UPS Critical bus conditions that must be present to initiate an automatic retransfer Auto Rexfer of the critical load from the bypass source to the UPS system are a number of Auto Rexfer Attempts selected must be greater than zero 0 If zero 0 is selected no automatic retransfer will occur Critical load was initially transferred to the bypass source due to a system overload only Overload has since dropped below 10096 of the rated SCC current Enough UPS modules are ON LINE to supply the current load OK to Transfer signal received from the control logic for at least 10 seconds within 5 minutes of the overload transfer A manually initiated retransfer from bypass is required for overloads lasting 5 minutes or more f Cyclic

Liebert 600 User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents