Page 3 - TABLE OF CONTENTS
i TABLE OF CONTENTS I MPORTANT S AFETY I NSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 O VERVIEW O F M ANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.0 I NTROD...
Page 4 - AINTENANCE
ii 3.4 Faults, Alarms, Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 3.4.1 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 3.4...
Page 5 - FIGURES
iii FIGURES Figure 1 UPS controls and display screen (with example of the monitor/mimic screen). . . . . . . . . . . . . . . . 6 Figure 2 80 kVA UPS outside and inside views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3 Operator control pan...
Page 7 - TABLES
v Figure 100 Summary page screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Figure 101 User settings, page 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 9 - SAVE THESE INSTRUCTIONS.; Npower UPS and batteries.; WARNING
1 I MPORTANT S AFETY I NSTRUCTIONS SAVE THESE INSTRUCTIONS. This manual contains important instructions that should be followed during maintenance of your Npower UPS and batteries. ! WARNING Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel. Refer to s...
Page 10 - Section 1 - INTRODUCTION; Battery Reserve Time:
2 O VERVIEW O F M ANUAL The Npower manual is organized so that information can be found quickly. Each major topic is sepa- rated by sections, and there is a Table of Contents for each section. The names of the sections and their contents are described below. Section 1 - INTRODUCTION is a summary of ...
Page 11 - NTRODUCTION; System Description; ment downtime as a result of utility source power problems.
Introduction 3 1.0 I NTRODUCTION 1.1 System Description The role of the 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 becomes distorted.If there is an outage of the source power,...
Page 12 - Designed For Success; ensure optimal operating temperatures.; Factory Backup and Service Assistance; manual if you don’t already have it.; Safety Precautions; of this
Introduction 4 1.1.1 Reliability Reliability is the most important design goal for Uninterruptible Power Systems. All Liebert 3-Phase UPS systems have demonstrated reliability by achieving a field-proven critical bus MTBF in excess of one million hours. In addition, our Quality Assurance program is ...
Page 13 - Modes Of Operation; Refer to; NOTE; Contact Liebert Global Services.
Introduction 5 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 insulating shoes for isolati...
Page 14 - described in; SIB External Maintenance Bypass on page 30; MIMIC DISPLAY; BATTERY
Introduction 6 1.3.4 Overload Overloads in critical systems may be caused by inrush currents during connected equipment startup or by faults in the critical load or distribution network. The Liebert Npower UPS system can maintain full output voltage regulation while sustaining the following overload...
Page 15 - Operator Controls
Introduction 7 1.4 Operator Controls Liebert Npower UPS modules are equipped with a microprocessor-based Operator Display Screen and Control Panel designed for convenient and reliable operation. The front panel location of the monitor- ing and control system enables the Operator to quickly identify ...
Page 16 - HEORY; General Component Description; UPS modules and a back-up battery plant. Refer to; Figure 2; cuitry to transfer the load to/from the bypass source.
Theory of Operation 8 2.0 T HEORY OF O PERATION 2.1 General Component Description 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 the UPS modules a...
Page 17 - Detailed Component Descriptions; Hardware; The Npower can be ordered with communication ports for:; Firmware; procedures. This helps to eliminate operator errors.; All external communication devices are optional equipment.
Theory of Operation 9 2.2 Detailed Component Descriptions 2.2.1 Controls Hardware The Npower UPS operator interface display system is designed to provide all of the information that is required for the operation of each UPS module. The following is a list of the hardware features:1. The control logi...
Page 18 - circuit for use with a back-up generator.
Theory of Operation 10 2.2.2 Rectifier/Charger The UPS module rectifier/charger consists of input fuses, 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 powe...
Page 19 - Battery Disconnect; and at 1% for alternate power source recharge operation.; Battery Equalize Charge Circuit; is disconnected from the load.
Theory of Operation 11 Operation After End-of-discharge The battery time screen displayed on the control panel enables you to estimate when battery shut- down 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 th...
Page 20 - Nonlinear Load Characteristics; while the critical load remains on UPS output power.; Pulsed Parallel Operation
Theory of Operation 12 Nonlinear Load Characteristics Computers and computer equipment with switching power supplies generate nonlinear currents rich in fifth and seventh harmonics.The inverter pulse-width-modulated waveform, coupled with the output filter, provides a natural path for reducing the f...
Page 21 - Transfer and Retransfer Conditions; c. OK to Transfer signal from the control logic is not present.
Theory of Operation 13 Transfer and Retransfer Conditions 1. Automatic Transfers to Bypass: Critical bus conditions that will initiate an automatic transfer of the critical load from the UPS inverter output to the bypass source are:a. Output Overload: overcurrent condition in excess of the current-v...
Page 22 - PERATION; Item
Operation 14 3.0 O PERATION 3.1 Operator Controls The Npower operator controls and indicators are located on the UPS Module Cabinet door and inside the cabinet. See Figure 2 . The Operator Control Panel is located in the upper lefthand corner of the door, enabling the Operator to quickly identify th...
Page 23 - Figure 3
Operation 15 Figure 3 Operator control panel Table 2 Key locations on operator control panel Item Description Function 1 Emergency Power Off Button Turns power off in an emergency situation. 2 Display Screen Enables Operator to monitor power flow and meter readings, receive reports, and execute oper...
Page 24 - • Obtain a quick indication of operational status:; Figure 4; MAIN MENU; STATUS REPORTS
Operation 16 3.1.1 Operator Control Panel The Operator Control Panel enables the operator to perform the following tasks: • Obtain a quick indication of operational status: • Is the critical bus OK?• Is the UPS system OK?• Is the battery available?• Is the bypass line available? • Monitor the power ...
Page 25 - Figure 5; The Rotary Switch has 3 positions:; prompts on the display screen.; is red. Instead, call the Liebert Global Services technician.; The LED light is positioned in the lower left-hand corner.
Operation 17 The SELECT button is used to select a particular item from the options on the screen. When you press this button, the screen that is selected will be immediately displayed. The UP and DOWN buttons are used to move the cursor around the screen in order to highlight appropriate selections...
Page 26 - Security Access and Passwords; Screen. It will look like the figure below.; Figure 6; page of the USER SETTINGS screen.; Figure 7; The; TIME and DATE of all password changes are logged in the event log.; CONFIGURATION; EXIT; USER SETTINGS; CANCEL
Operation 18 3.2 Security Access and Passwords Password protection is provided in the Npower UPS system to protect you from any unauthorized con- figuration of the system. A default password is installed on your system when you receive it.The default password is NPWR. It is important, however, that ...
Page 27 - Display Screens and Procedures; Figure 8; Input
Operation 19 3.3 Display Screens and Procedures The Operator Interface Display System of the Npower allows quick access to any screen the operator chooses. The default screen is the Mimic Display Screen.MENU TREE The figure below shows the primary screens that you can access through the Operator Int...
Page 28 - Primary Screens; munication Interfaces
Operation 20 Primary Screens The Main Menu has eight primary screens. Please note that some screens have multiple pages because not all the information can fit on one page. To access the next page, highlight NEXT and press SELECT. To access the previous page, highlight PREV and press SELECT. • Mimic...
Page 29 - Main Menu Screen; Figure 9; examples illustrate power flow under different conditions.; Figure 10 Monitor / mimic display screen example: normal power flow
Operation 21 Main Menu Screen The Main Menu contains the primary menu selections that monitor and control the operation of the UPS. To access one of these screens, use the NAVIGATIONAL BUTTONS beneath the screen.First, press the UP or DOWN button until the desired screen is highlighted. Then press t...
Page 30 - Figure 11 Mimic display screen example: utility fail; sources. The battery is connected and supplying power to the load.; FAULTS; BP
Operation 22 In this example, power is available from the normal and bypass sources, as well as from the battery. Notice that the switching devices are all closed except for the bypass switch at the top. The load is operating on conditioned power from the inverter. The battery is being charged by th...
Page 31 - source is available and the battery is being charged.; Figure 14 Mimic display screen detail
Operation 23 In this example, the load is receiving power through the bypass switch. Notice that the input power source is available and the battery is being charged. Figure 13 Monitor / mimic display screen example: load on bypass, UPS module off, service mode In this example, the power is coming f...
Page 32 - Detailed Information Reports; Figure 15 Input status screen; The Input Status screen displays the following real-time data:; Figure 16 DC bus / battery status; highlighting with power pathways.; following screens are updated at one-second intervals; INPUT STATUS; A B C FREQ. 60.0 HZ; DC BUS / BATTERY STATUS; DC BUS VOLT 540
Operation 24 Detailed Information Reports Detailed information reports are available through the following numbered blocks1. INPUT STATUS. To access this screen, start with the Mimic Display Screen. Using the arrow keys, bracket INPUT and press SELECT. The screen displays the UPS input voltage and c...
Page 33 - BYPASS INPUT; the Monitor Mimic Display.; Figure 17 Bypass input status; The Bypass Input Block displays the following real-time data:; Figure 18 Output load status screen; BYPASS INPUT STATUS; A B C FREQ. 59.9 HZ; I 5 5 162; OUTPUT LOAD STATUS; A B C
Operation 25 The DC BUS/BATTERY status screen displays the following real-time data: • DC Bus Volts• Battery Volts• Battery Current (Chg/disch)• Battery Temperature (This reading is the temperature of the ambient air in the battery cabinet.)• Battery Time Remaining 3. BYPASS INPUT . Selecting BYPASS...
Page 34 - SYSTEM STATUS; . When the SYSTEM STATUS box on the Mimic Display Screen (; Faults and Alarms; alarm messages should be present.; Figure 19 Active faults and alarms screen; If input power is lost, the following screen will be displayed:; Figure 20 Active faults and alarms, loss of power; to; ACTIVE FAULTS AND ALARMS
Operation 26 The Output/Load status screen displays the following real-time data: • Output AC Volts AB, BC, CA• Output AC Volts AN, BN, CN• Output Current A, B, C• Output kVA, kW, A, B, C• Output Frequency• % rated kVA and kW• Overload Condition (with timer in seconds) 5. SYSTEM STATUS . When the SY...
Page 35 - First Scenario; Figure 21 System ratings screen; SYSTEM RATINGS; KVA 40
Operation 27 3.3.2 Startup There are two start up scenarios which can be followed depending on whether there is already power supplied to the UPS and the UPS is on Bypass, or there is no power to the UPS. Follow the appropri- ate instructions. First Scenario Power is not supplied to the UPS (Upstrea...
Page 36 - Second Scenario; Auto Startup on page 28; Auto Startup; CAUTION; MANUAL STARTUP
Operation 28 Second Scenario Power is supplied to the UPS and the UPS is supplying the load. (Upstream breakers are closed). The UPS should be showing either the SYSTEM RATINGS screen or the Mimic display. If the SYS- TEM RATINGS screen is showing, use the arrow keys to select SAVE & EXIT and pu...
Page 37 - Manual Startup; Operator to close the Static Switch contactors.; Figure 25 Target and ramp values; OK
Operation 29 Manual Startup On occasion, a service technician may wish to start the UPS manually while performing diagnostic testing. The manual startup, like the auto startup, requires that the Rotary Switch be in the NOR- MAL position. To start the system manually, highlight MANUAL STARTUP and pre...
Page 38 - SIB External Maintenance Bypass; Liebert supplied option is outlined in; Figure 27 External maintenance bypass switch, dual-input UPS
Operation 30 New Target and Ramp settings are temporary settings for diagnostic testing or special situations. Each time the UPS is placed online, the settings return to the default values. Custom T and R entries are only allowed when rotary switch is in Bypass position.The Operator normally does no...
Page 39 - Figure 28 External maintenance bypass switch, single-input UPS; Switch position
Operation 31 Figure 28 External maintenance bypass switch, single-input UPS The table below summarizes the External Maintenance Bypass switch positions and actions. When the External Maintenance Bypass switch is in Bypass or Maintenance position, the UPSC will assert the bypass contactor close signa...
Page 40 - External Maintenance Bypass Switch Configurations; nance position, the “critical load shutdown” message reads “UPS off”.; Multiple Battery Cabinets; Figure 29 Set number of battery cabinets screen; NUMBER OF BATTERY CABINETS; MIN MAX
Operation 32 External Maintenance Bypass Switch Configurations The External Maintenance Bypass Switch has three configuration options: • External maintenance bypass installed with interlock option• External maintenance bypass installed without interlock option• Not installed Regardless of how the co...
Page 41 - and press SELECT. The following figure will appear.; Figure 30 User shutdown screen; Rectifier and Inverter.; USER SHUTDOWN; CRITICAL LOAD SHUTDOWN; BYPASS OK; TRANSFER TO BYPASS; MANUAL TRANSFER / RETRANSFER; BYPASS NOT OK; INVERTER IN SYNC
Operation 33 3.3.3 Shutdown To shut down the UPS, navigate to the MAIN MENU, and select STARTUP/SHUTDOWN. This action will display the STARTUP/SHUTDOWN screen. From there, highlight USER SHUTDOWN and press SELECT. The following figure will appear. Figure 30 User shutdown screen The Operator can invo...
Page 42 - button and the following STATUS REPORTS screen is displayed; Figure 33 Status report screen; the desired selection.; information see
Operation 34 The message Retransfer to UPS or Transfer to Bypass will appear depending on status of the critical load. The operator has two choices: Either to accept OK or EXIT. If a transfer or retransfer is not allowed, the FLASHING message Transfer Not Allowed is displayed. Press EXIT to return t...
Page 43 - Event Log; SYS TIME SET BY OP; EVENT LOG; PREV; EVENT LOG; SYS TIME SET BY OP; PREV
Operation 35 Event Log The Event Log screen displays the faults, alarms, and status messages. Every message will have a time and date stamp.The Event Log is a sequence of messages or events captured in individual frames. See the following section on HISTORY LOGS for more information about frames.The...
Page 44 - History Logs; HISTORY LOG 1 P1 - METERING
Operation 36 History Logs The History log contains pertinent data recorded just before and after an event that triggers a signifi- cant action such as an inverter failure.There are two History logs, each consisting of 64 frames. Each frame is a sequential snapshot of UPS-generated parameters. The UP...
Page 45 - The second page is the STATUS, which includes:; Figure 38 History log status report screen; HISTORY LOG 1 P2 - STATUS; ALARMS
Operation 37 The second page is the STATUS, which includes: • Static Bypass Switch Line (Open/Closed)• Static Bypass Switch Load (Open/Closed)• Input Contactor (Open/Closed)• Output Contactor (Open/Closed)• Trap Filter (On/Off) (If installed)• Int. MBP (Normal/Bypass Service)• Ext. MBP (Open/Closed)...
Page 46 - functions, and corrective actions; for more information on Security Access and Passwords.; SYSTEM SETTINGS
Operation 38 As previously mentioned, faults are shown in reverse video, and alarms in regular video. For a com- plete list of all the alarm messages and corrective actions for these faults, refer to Table 7 - Alarms, functions, and corrective actions . The History Status buffer does not resume coll...
Page 47 - System Ratings; Figure 41 System ratings, page 1
Operation 39 System Ratings System rating parameters are normally entered by the factory or LGS.To get to the System Ratings screen, begin at the Main Menu. Using the arrow keys, move to Config- uration and press SELECT. This brings up the Configuration screen. (See Figure 40 ). From the Configurati...
Page 48 - System Settings; Configuration screen (; Figure 43 System settings screen, page 1; To set the system date:; Figure 44 Date setting screen; LANGUAGE ENGLISH; TIME; NEXT; CURRENT DATE
Operation 40 System Settings The System Settings are multiple screens that are used for setting the date, time, language, ID num- ber, Tag number and other parameters.The first page of the System Settings screen can be accessed by highlighting Systems Settings on the Configuration screen ( Figure 40...
Page 49 - Time; Configuration screen.; Figure 45 Time setting screen; Communication Interfaces; CURRENT TIME; SYSTEM CONFIG SMS
Operation 41 Time To set the system's real time clock, do the following:1. From the System Configuration screen, press the Up or Down button to move the highlighted cursor to TIME. 2. Press SELECT. The TIME screen will appear.3. Press SELECT to move the arrow to the next digit to the right.4. When t...
Page 50 - Figure 47 System settings, page 3; the System Settings screen.; Figure 49 Single /dual input screen; BYPASS AUTO TRANSFORMER T3 NO; ENTER PASSWORD
Operation 42 Figure 47 System settings, page 3 The Single / Dual Input Screen is password protected. (See 3.2 - Security Access and Passwords for more information on Security Access and Passwords.) After highlighting Single / Dual Input from the System Settings Screen, and pressing SELECT, the follo...
Page 51 - Options; OPTIONS; 0% PASSIVE FILTER SETTINGS
Operation 43 Options This multiple-page screen, accessed from the third page of the SYSTEM SETTINGS screen, enables and disables optional features which might or might not be installed in your UPS. To enable or dis- able one of these options, do the following:1. Highlight the option you wish to enab...
Page 52 - Figure 52 Options screen, page 2; FREQUENCY CONVERTER NO
Operation 44 Figure 52 Options screen, page 2 Figure 53 Options screen, page 3 Figure 54 Options screen, page 4 OPTIONS 12 PULSE RECTIFIER 6 PULSE BATTERY GND FAULT NO GREEN MACHINE NO LINE DROP COMPENSATION NO PREV. EXIT NEXT FREQUENCY CONVERTER NO OPTIONS ALTERNATE POWER POLE FAN NO AUX. TEMP. NO ...
Page 53 - Communication Options; tions Options screen. The Auto Dial screen will be displayed.; Figure 56 Auto dial screen; will come up showing that the modem is disabled.; Figure 57 Modem selection screen; COMMUNICATION OPTIONS; AUTO DIAL; DISABLED
Operation 45 Communication Options Communication options are the various options that enable the operator to view data from remote locations and to program the type of data to be viewed. For detailed information, see Section 3.5 - Communication Interfaces . The communication options screens can be a...
Page 54 - Figure 56 - Auto dial screen; MODEM HEALTH CHECK EVERYDAY; PAGER SUPPORT CONFIGURATION; PAGER ENABLED
Operation 46 To enable the modem, highlight INTERNAL or EXTERNAL and press SELECT. The Auto Dial screen will return ( Figure 56 ) except instead of DISABLED, the message will read INTERNAL or EXTER- NAL. After enabling the modem, the Operator can proceed to configure Auto Dial settings at the AUTO D...
Page 55 - Figure 60 Communications options screen, page 2; Select NEXT to go to the Communication Options screen, third page.; User Settings; The User Settings are accessed from the Configuration Screen (; Figure 61 User settings screen, page 1
Operation 47 Figure 60 Communications options screen, page 2 Select NEXT to go to the Communication Options screen, third page. User Settings The User Settings are accessed from the Configuration Screen ( Figure 40 ). Figure 61 User settings screen, page 1 Figure 62 User settings screen, page 2 COMM...
Page 56 - Figure 63 User settings screen, page 3
Operation 48 Figure 63 User settings screen, page 3 Figure 64 User settings screen, Page 4 Figure 65 User settings screen, page 5 USER SETTINGS BATT. EOD RAMP START 15 BATT. EOD RAMP END 60 BATT. TEMP. ALARM LIMIT 40 BATT. COMPARTMENT TEMP. LIMIT 50 INPUT PLL PHASE ADJUST 0.0 SAVE & EXIT CANCEL ...
Page 57 - Figure 66 10% Passive filter settings screen; Factory Settings; Figure 68 Factory settings screen; 0 % PASSIVE FILTER SETTINGS; FACTORY SETTINGS
Operation 49 Highlighting 10% PASSIVE FILTER SETTINGS will bring up the following Operator--interactive screen. Figure 66 10% Passive filter settings screen Figure 67 User settings screen, page 6 Factory Settings Figure 68 Factory settings screen 10 % PASSIVE FILTER SETTINGS 10 % PASSIVE FILTER ENAB...
Page 58 - Figure 69 Factory settings screen, page 2; Alarm Mask; grammable attributes are described below. The letters L, D, F and E in
Operation 50 Figure 69 Factory settings screen, page 2 Figure 70 Factory settings screen, page 3 Alarm Mask The Alarm Mask sets parameters for all alarms that affect the UPS and output channels. The pro- grammable attributes are described below. The letters L, D, F and E in Figure 71 refer to these ...
Page 59 - Delay; will only recognize the alarm and latch after the delay period.; Figure 71 Alarm / fault name screen; certain attributes by following these steps.; Figure 72 Alarm edit screen; display screen, the customary rules change slightly.; BATT. FUSE FAIL Y Y N Y; BATTERY FUSE FAIL
Operation 51 Delay This refers to the time in seconds that must occur before the UPS recognizes an alarm function. The delay can be anywhere from 0 to 99.9 seconds in 0.1 second intervals. If an alarm is set to Latch, it will only recognize the alarm and latch after the delay period. Figure 71 Alarm...
Page 60 - cation Interfaces; Refer to the Special Functions column in; Customer Alarm Interface; Programmable Relay Boards.; Some attributes cannot be edited.
Operation 52 To change the programmable attributes, highlight the attribute to be edited and press the SELECT button. This action brings up a screen allowing the Operator to toggle between YES and NO. AUTO DIAL The Npower UPS can automatically dial (through the optional modem) each of two pre-progra...
Page 61 - Figure 73 Customer alarm interface screen; If there is no board, the “NOT INSTALLED” message is displayed.; Figure 74 Customer alarm interface screen, page 2; The AS400 pre-assigned relays are shown in this screen.; RELAY BOARD # 1 AS400; CUSTOMER ALARM INTERFACE; PROGRAMMABLE OUTPUT RELAY BOARD # 1
Operation 53 Figure 73 Customer alarm interface screen If there is no board, the “NOT INSTALLED” message is displayed. 3. Pressing NEXT will bring up the second page. Figure 74 Customer alarm interface screen, page 2 To access the Programmable Relay Board #1, highlight RELAY BOARD #1 from the first ...
Page 62 - The following screen will appear.; Figure 76 Relay assignments; If you select STD SET, the following screen will be displayed.; Figure 77 Programmable output relay board, standard set; RELAY ASSIGNMENTS
Operation 54 To change the relay assignment, select RELAY ASSIGNMENTS from the screen and press SELECT. The following screen will appear. Figure 76 Relay assignments If you select STD SET, the following screen will be displayed. Figure 77 Programmable output relay board, standard set Figure 78 Progr...
Page 63 - Figure 79 Programmable output relay board, user defined; All User Defined relays are programmable.; Navigating Protocol on page 56; The alarm at the top of the screen will be flashing.; below the display screen. Specific instruction is given below.; programmable output relay.; DC OV TRANSIENT
Operation 55 If the Operator selects USER DEFINED from the RELAY ASSIGNMENTS screen, the following screen will come up. Figure 79 Programmable output relay board, user defined All User Defined relays are programmable. To begin programming the User Defined Relays, highlight the relay to be programmed...
Page 64 - Navigating Protocol; repeat the same procedures for RELAY BOARD # 2.; selections will not be saved.
Operation 56 Navigating Protocol For the screen above and others like it, the normal screen navigation rules are changed. It is impor- tant to differentiate between the selections at the bottom of the display screen (UP/DOWN/ADD/ REMOVE/CLEAR/EXIT) and the navigation buttons or arrow keys below the ...
Page 65 - Figure 83 Battery management screen; Battery Test; Figure 84 Battery test screen; BATTERY MANAGEMENT; BATTERY TEST; LAST BATTERY TEST: BATTERY TEST PASSED
Operation 57 Figure 82 Manual transfer / retransfer screen when transfer is not allowed In the figure above, the message “TRANSFER NOT ALLOWED” will be flashing. 3.3.7 Battery Management The Battery Management screens display information on battery self tests, battery equalization, bat- tery tempera...
Page 66 - active alarm/fault window of the Mimic screen.; Figure 85 Automatic test screen; Battery Type; AUTO TEST; CYCLE 2
Operation 58 The following conditions and features apply to either Auto or Manual Mode: • If you go to the battery screen, it will indicate “Battery Test in Progress”. When the test is com- plete, the indication “Last Battery Test” will either say “Battery Test Passed” or “Battery Test Failed.” • On...
Page 67 - Figure 86 Set battery cycle screen; Battery Equalizer; The Battery Equalizer Screen (; BATTERY CYCLE; MIN 2 MAX 9; BATTERY DURATION; MIN 30 MAX 900
Operation 59 To enable the Auto Battery Self Test, Select “Auto Test Enable” from the Battery Test screen. Next, set the Date and Time at which the first test will be performed. Set the Test Cycle period in weeks. (The range is 2-9 weeks and the default is 2 weeks.) Finally, set the Test Duration ti...
Page 68 - Figure 88 Battery equalizer screen; for these options are illustrated below.; Figure 89 Auto screen; battery equalize time and press SELECT.; BATTERY EQUALIZER; SAVE; AUTO
Operation 60 Figure 88 Battery equalizer screen From the Battery Equalizer Screen, you can choose one of the four options on the screen. The screens for these options are illustrated below. Figure 89 Auto screen AUTO MODE —When the battery recharge control logic is in the AUTO MODE, the UPS battery ...
Page 69 - Figure 91 Equalize time period screen; the default being 540 volts.; Battery Temperature Compensation Charge; Figure 93 Battery temperature compensation charge screen; EQUALIZE TIME PERIOD; EQUALIZE VOLTAGE; MIN MAX; BATTERY TEMP COMPENSATION CHARGE; TEMPERATURE 20 C 850
Operation 61 Figure 91 Equalize time period screen 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 indicat...
Page 70 - press the SELECT button. This will bring up the following screen.; Figure 95 Battery temperature compensation charge screen, page 2; and; Figure 96 Battery temp compensation edit screen; Battery Cycle Monitor; See; BATTERY TEMP COMPENSATION; DISABLE; TEMPERATURE 20 C; MIN
Operation 62 To enable or disable the Battery Temperature Charge, highlight the top line in the screen above and press the SELECT button. This will bring up the following screen. Figure 94 Battery temperature compensation enable/disable screen To access page 2 of the Battery Temp Compensation Charge...
Page 71 - Figure 97 Battery cycle monitor screen; The second page, accessed by selecting NEXT (; allows the Operator to view the Sum-; Figure 98 Battery cycle monitor screen, page 2; BATTERY CYCLE MONITOR
Operation 63 Figure 97 Battery cycle monitor screen The second page, accessed by selecting NEXT ( See Figure 98), allows the Operator to view the Sum- mary Page and to erase the BCM time bucket data permanently from the non-volatile storage. (This action requires the system password.) The Operator c...
Page 72 - repaints the column with DATE stamps again.; Figure 99 0-30 seconds discharge cycles; # DATE SEC MIN-DC MAX-A KWH C; - 30 SECONDS DISCHARGE CYCLES; ACCUMULATED NUMBER OF CYCLES 4; SUMMARY PAGE
Operation 64 Selecting the TIME button will display the time stamp of each cycle for three seconds after which it repaints the column with DATE stamps again. Figure 99 0-30 seconds discharge cycles SUMMARY PAGE LAYOUT The Summary Page Screen is accessed from the Battery Cycle Monitor Screen.The BCM ...
Page 73 - BCM DATA DEFINITIONS / STORAGE; Terminal and Modem ports.; Battery Time Low Warning; Figure 101User settings, page 2; BATT. EOD LOWER SET POINT 384
Operation 65 BCM DATA DEFINITIONS / STORAGE At the start of every discharge cycle, Time and Date are recorded along with Battery Compartment Temperature in degrees C. While the cycle is in progress, the following data are stored: Lowest DC Bus Voltage, Battery KW Hours, and Highest Battery Discharge...
Page 74 - Figure 102Battery time low warning screen.; Battery Supplement; before setting or clearing this alarm.; BATT. TIME LOW WARNING
Operation 66 Highlight BATT TIME LOW WARNING and press SELECT to bring up the following password-pro- tected screen. Figure 102Battery time low warning screen. After setting the time, press SELECT to save the changes and return to the previous screen. Battery Supplement This feature allows the UPS t...
Page 75 - Figure 103Auto restart setting screen; you want to cancel? The Operator can then select YES or NO”.; Alarm Notifications; by the Operator. See; Alarm Messages on page 74; for a complete description of these alarms.; Auto Restart Trigger Condition; AUTO RESET TIMING 5; AUTO RESTART SETTING SYSTEM; AUTO RESTART; AUTO RESTART IN PROGRESS
Operation 67 Figure 103Auto restart setting screen The source qualification timer dictates how long to allow for input and bypass voltages to return to their nominal limits. The default value is 100 with a programmable range of 5-100 minutes. Since a setting of 100 signifies an infinite wait time, t...
Page 76 - Figure 105System status screen; INSTALLED HOURS 0H
Operation 68 3.3.9 System Status Monitoring In addition to the standard UPS metering and alarm information, Npower monitors and calculates other relevant data. This data can be accessed by starting from the Main Menu, selecting Status Reports, then System Status. The counters start from the time LGS...
Page 77 - The Sign Off Date segues to Sign Off Time and back every 5 seconds.; Figure 106System status screen, page 2; OUTS and pressing SELECT.; Figure 108System status screen, page 4; STATUS DEFINITIONS AND CONDITIONS; Accumulated Installed Hours; NEXT PREV SAVE & EXIT
Operation 69 The Sign Off Date segues to Sign Off Time and back every 5 seconds. Figure 106System status screen, page 2 Figure 107System status screen, page 3 A brownout occurs when an Input Undervoltage condition exists for more than 5 minutes. During this time, Input Line Fail condition is not act...
Page 78 - that the load is supported by UPS.
Operation 70 Once the “UPS Sign Off” is acknowledged, it is stamped with RTC time and date. This step must be performed by LGS personnel. The software will keep track of the elapsed hours from that point on by subtracting the current time and date from the sign off time and date. Accumulated Operati...
Page 79 - system operations performed upon their detection.
Operation 71 3.4 Faults, Alarms, Status This section defines the active fault, alarm, and status indicators, their causes, and the associated system operations performed upon their detection. 3.4.1 Faults A fault is defined as an undesirable system operating condition that could cause further damage...
Page 80 - Summary Alarm; alarms. This alarm may be assigned to any PRB relay.; See Customer Alarm Interface; The Summary Alarm can be accessed from the list of alarms / faults (; Customer Alarm Interface on page 52); L D F E DELAY
Operation 72 The following faults are detected by the UPS controls. Corrective actions, where possible, are auto- matic. • Active Filter Fail• Battery Overtemp CB Trip• Battery Ground Fault CB Trip• Bypass Power Supply Fail• EPO Shutdown• Heatsink Overtemp Limit• Input Power Supply Fail• Output Powe...
Page 81 - allowing the Operator to edit the parameters of the summary alarm.; Figure 110 Summary alarm editing screen; SUMMARY; LATCHING NO
Operation 73 Highlight the SELECT position on the display screen to bring up the Summary Alarm Editing screen, allowing the Operator to edit the parameters of the summary alarm. Figure 110 Summary alarm editing screen When the New Alarm, System Summary Alarm, or Module Summary Alarm is activated, yo...
Page 82 - Alarm Messages; may not change any Freeze Masks.; Table 7
Operation 74 Alarm Messages The alarm message area displays the alarm conditions that are present within the UPS system. The table below shows the default values of masks for each alarm/fault, the meaning of the Alarm and possible corrective actions.The following information applies to the table.1. ...
Page 96 - seconds) is displayed at the bottom of the load block.; toring the UPS system.; There are 8 alarms on the Remote Alarm Status Panel. See
Operation 88 3.4.3 Status Status conditions give the Operator additional knowledge about UPS operation. Some are indicated on the Mimic Display screen by a text message while others are depicted graphically.The following status messages may appear in the Operator display. • Static Switch Connected. ...
Page 97 - Table 8; through password protection.; point the pager module (See; Dial Out Pager on page 90; Command
Operation 89 3.5.1 RS-232 Port: Local Reporting Terminal The Npower transmits UPS system status and history information to a remote terminal through an RS-232 Port in ASCII Format. This feature is called the Service Terminal. The service terminal inter- face is intended to be accessed via PC termina...
Page 98 - Requesting Information; modem and await your next call.; Dial Out Pager; gating to COMM OPTIONS, and then to PAGER SUPPORT CONFIGURATION.; Figure 111 Pager support screen; when you leave the configuration menu screens.; PAGER ENABLED : YES
Operation 90 Requesting Information If your Npower UPS is equipped with a modem and telephone line, you can call the UPS and receive system status and historical information. You can place the call from either a remote terminal or a personal computer with a communications program. Follow the instruc...
Page 99 - PROTOCOL
Operation 91 PROTOCOL The pager module uses the Telocator Alphanumeric Protocol (TAP), which is the protocol used for SkyTel pagers. A copy of this protocol is included with the pager option. Pager support requires the same hardware that modem support requires. The internal modem is quite adequate.S...
Page 100 - Setting Up External Communication Devices; Figure 112 Load on bypass, UPS not available; for more information.
Operation 92 3.5.5 Setting Up External Communication Devices All external communication devices, including the modem, are optional equipment. Connections to communication ports are made by wiring cables to terminal boards. Connection points are shown on the Control Wiring Interconnect Diagram in the...
Page 101 - Figure 113 Load on bypass (UPS available and battery charging)
Operation 93 Figure 113 Load on bypass (UPS available and battery charging) 3.6.3 Momentary Overloads An overload in the critical load will continue to be supplied by the UPS system if the overload condi- tion does not exceed the current versus time curve of overload capacity for the UPS.For momenta...
Page 102 - Overloads; through the static bypass switch.; Automatic Re-transfers to UPS; the bypass source to the UPS inverter:
Operation 94 3.6.5 Automatic Operations The Npower UPS is designed to function while attended or unattended by an Operator. The system control logic monitors the performance of the UPS, the availability of power sources, and the current required by the critical load.Automatic UPS operations are desc...
Page 103 - Automatic Module Off Line
Operation 95 Automatic Module Off Line For specified UPS system faults, the control logic will initiate an automatic transfer to bypass fol- lowed immediately by a shutdown and isolation of the UPS system. All UPS contactors and the bat- tery circuit breaker are opened. The static bypass switch will...
Page 104 - Observe the safety precautions in; familiar with the design or operation of the equipment.; others approved for use in electrical fire fighting.
Maintenance 96 4.0 M AINTENANCE 4.1 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 and cautions below before performing ANY maintenance on the UPS System and associate...
Page 105 - Routine Maintenance; mon sense maintenance.; Requirements
Maintenance 97 4.2 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 malfunc- tion. If you have any doubt as to what must be done, call Liebe...
Page 106 - resistance should be made.; can cause sparks. The following procedures should be followed:; cloth or a cloth moistened in water
Maintenance 98 4.2.4 Battery Safety Precautions Servicing of batteries should be performed or supervised by personnel experienced with batteries and the required precautions. Keep unauthorized personnel away from batteries.When replacing batteries, use the same number and type of batteries. Regular ...
Page 107 - cally or manually. Refer to; Battery Equalizer on page 59; equipment is labeled otherwise.; Table 9
Maintenance 99 The equalizing charge time period is adjustable from zero to 72 hours and can be initiated automati- cally or manually. Refer to Battery Equalizer on page 59 . * To be completed by Liebert Global Services customer engineer at time of start-up. 4.2.5 Torque Requirements All electrical ...
Page 108 - Detecting Trouble; Reporting a Problem; Recommended test equipment and tools; Qty
Maintenance 100 4.3 Detecting Trouble It is important that the operator check the instrument readings if abnormal equipment performance is suspected. Any metered value that differs appreciably from normal could mean an impending mal- function, and should be investigated.Items to check on the various...
Page 109 - NOTES
Page 112 - AC Power
EmersonNetworkPower.com Ensuring The High Availability0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-criticalcontinuity, ensures network resiliency and adaptability througha family of technologies—including Liebert power and coolingtechnologi...
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