USER MANUAL
Contents
1. 1e De Do De De Ne De De te Do De Oe ime 0 Oe De Be Oe De Oe e To Seno ole naa 0000 Figure 3 14 Installing the Cabinet 10 For 6K Replace the battery tray and connect the internal battery connector then replace the protection plate and the front panel 11 If installing additional UPSs repeat from Step 1 to Step 8 for each cabinet 3 5 2 Installing the EBMs Note A little of arcing may occur when connecting an EBM to the UPS That is normal and not harmed Plug the EBM cable into the UPS battery connector quickly and firmly 16 To install E 6K Model 1 Plug the BMs EBM cable into the UPS battery connector OJO ZZ g ae Q AS SS hing ES oS e 0 OS g 0 C D LS O Oo 0 Figure 3 15 Plug the EBM cable into the UPS battery connector 2 Replace UPS s front panel and EBM s front panel O lt O Oi 5 SIE 22 ole O O 9 5 SIE ole 1 O O e 5 off O Io O oO Figure 3 16 Replace UPS2. 45 Password AAAA Most of settings could only be done while UPS is in Bypass mode User password lt gt lt disabled gt enabled disabled A y Audio Alarm lt enabled gt enabled disabled Y Output voltage lt 230v gt 208V 220V 230V 240V v Output frequency lt 50Hz gt autosensing A 50Hz 60Hz Power strategy Auto Restart m lt enabled gt enabled disabled A y Automatic overload restart lt enabled gt enabled disabled A v AutoBypass lt enabled gt enabled disabled A Yy Short circuit clearance lt disabled gt enabled disabled A Parallel UPS v Redundancy Lost Alarm lt enable gt lt normal gt A normal high A efficiency converter Y lt y Bypass voltage low DC start limit lt enabled gt Koh lt 215V gt enabled disabled A ney A A Yy Site wirina fault Bypass voltage high alarm limit lt disabled gt lt 264V gt enabled disabled 245 276v h d Ambient temperatur Bypass frequency warning Low limit lt disabled gt lt 10 45 0Hz gt 1 A enabled disabled v Automatic battery Bypass freguency Tests period High limit lt 7days gt lt 10 55 0Hz gt 0 3idays t E ic x Yy HE voltage low limit lt 5 210V gt 1 10 A Figure 5 19 Setting menu tree 46 HE voltage high limit lt 5 230V gt 1 10 t HE feguency Low Limit lt 5 47 5Hz gt A v HE fequency High Lim
3. Figure 3 5 PowerMust 6054 LCD RM 12 Parallel USB RS 232 External Battery UPS Communication Slot Connector Port Port Connector 2 O lt e i o 8 6 E o rane its E i oo AA oad Do 9 oga 0 0 l Gooey i o A Co co Co o O Output Circuit Outpu REPO Port Maintenance breaker 3 4 UPS Front Panel Bypass Switch Figure 3 6 PowerMust 10900 LCD RM This section shows the front panel of the Online R T UPS The Online series have the same LCD panel and the same control button LCD Panel O O CI Oo 0 BAD La Ls Kap tegal ol O O Io O CO On Off button Scroll Button Up or Back Select button Scroll Button Down or Forward Figure 3 7 The Online R T UPS Front Panel 13 3 5 Rack mount Setup CAUTION The cabinet is heavy so 1 Remove the battery tray from the UPS before lifting 2 Lifting the cabinets into the rack requires a minimum of two people CAUTION Removing the batteries requiered precautions which should be performed or supervised by personnel with knowledge of batteries Keep unauthorized personnel away from batteries CAUTION If installing an EBM Extended Battery Module
4. 34 Table 5 3 Status Summary Screens Status Summary Screen Description Normal mode Line amp Output The UPS is operating in Normal mode 220 Y 4g0v 220 Y from utility power 6042 MN 6042 100 i 5400 w Fig 5 3 Battery mode L Output aa When the UPS is running in battery 0 180V mode the buzzer beeps once every 4 One ES 60 7 seconds KT 5400 W Fig 5 4 7 Bypass with output Line gt Output The UPS does not have the backup 220 180v 220 function when it is in bypass mode 60 60 The power used by the load is supplied 100 5400 w from the utility power via internal filter nill The UPS will beep once every 2 Fig 5 5 minutes in bypass mode Bypass without output OTS CC Output The UPS in bypass mode without 220 V 180V ora output 6012 QHZ 0 ow Fig 5 6 High Efficiency Mode L E Output ae amp er After the UPS is turned on the power O used by the load is supplied from the 60 2 i 60 utility power via internal filter while the 5400 W utility power is in normal range so the Fig 5 7 high efficiency could be gained in the HE mode Once the mains is loss or abnormal the UPS would transfer to Line mode or Battery mode and the load is supplied continuously 1 The function could be enabled through the LCD setting or the 35 software Winpower etc 2 Itis attention that the trans
5. Bypass AC XX gt i 6s Normal AC Transformer Load 19 2 Transformer in the Bypass AC input Transformer Bypass AC we Oo MLVS2 FA C Load Normal AC 3 Both of them have transformer Transformer Bypass AC MLVS1 49 pp r Os Normal AC Transformer Load Freguency converter without Bypass AC input Main low voltage A switchboard C tt MLVS gt Load Normal AC 20 4 Power cables connection amp Startup This section explains e Access to terminal block Common input sources connection Separate input sources connection Frequency converter connection UPS initial startup Use cable cross section and protective device specification PowerMust PowerMust 6054 LCD RM 10900 LCD RM PNG earthing conductor anaes 10AWG 6mm BAWG Min cross section puth NG 4mm 10AWG 6mm 8AWG Min conductor cross section inouttuse ORA Puput 4mm 10AWG 6mm 8AWG Min conductor cross section External Battery Cabinet positive Pele 7 Negative 4mm 10AWG 2 5mm 2 12AWG 2 pole Neutral Pole Min conductor cross section Poser tse A in Positive Pole Negative 60A pole Neutral Pole The UPS does not have an automatic protection device against current backfeed It is suggested that install an external isolating device which is shown in the following illustration C
6. install the EBM directly below the UPS 3 5 1 Install the UPS and EBM Extended Battery Modules in a rack 1 Open the front panel and put it above the UPS Figure 3 8 Open the front panel left 6K Model right 10K Model 3 Remove the battery protection plate C a Cc Ii TE Figure 3 9 Removing the Battery Protection Plate 14 5 Pull the battery tray out using the plastic tabs and then remove the battery tray Figure 3 11 Removing the Battery Tray 6 Install the PDU s ears to the UPS Sete De De De De De Ele De Ce De De De Lp De Le Br Figure 3 12 Install the PDU s ears to the UPS 7 Select the proper holes in the rail for positioning the cabinet in the desired location in the rack Locate the rails at the bottom of the 3U space allocated for the each UPS and EBM 8 Install the sliding rails in the rack then install the UPS in the sliding rail 15 Figure 3 13 Install the sliding rails 9 For 10K Install the battery pack and battery protection plate then replace the front panel E krnanal 1 Oo O A000 Ooo boo oo ooo To De De De De Be Do Bo O Fle De De S Do Bo Do F
7. s front panel and EBM s front panel 17 AN CAUTION Please connect the EBM to protective ground with 8 AWG wire for EBM model firstly 10K Model d AN E SR SEZ prag Ed FANS D H 28 n 9 Hi D SS H Figure 3 17 Plug the EBM cable into the UPS battery connector 3 6 Tower Setup Tower setup as below O O O Oa O O fe ke ome O Figure 3 18 Tower setup 18 3 7 Installation of UPS with AC inputs CAUTION Online 6K 10K series support that the UPS can have separate AC inputs So before connecting wires of seperate AC inputs you should confirm that their earthing systems are identical Otherwise a transformer is necessary UPS with common Normal and Bypass AC inputs Main low voltage switchboard MLVS Bypass AC tt Normal AC vb Load UPS with separate Normal and Bypass AC inputs gt Earthing systems are identical MLVS1 MLVS2 Bypass AC X l Normal AC Load gt Earthing systems are separate Three different installations can be choosen 1 Transformer in the Normal AC input MLVS1 MLVS2
8. Nustek USER MANUAL PowerMust 6054 LCD 6KVA RM Online IEC PowerMust 10900 LCD 10KVA RM Online IEC Contents TINTFOJUCEION 2 ae ab an an 1 2 Safety WArNINgSi sii ionnnnin noah tanaman 4 2 4 Installations LAA ANA EN MMe 4 2 2 Oprati Ona an Ea 5 2 3 Maintenance Servicing and faults ooooWoW WWW 6 2 4 Transpor Aeon ata Ann anang dh eteb sted ated ot ece 7 215 SLOFAGE Lenteng Aa Raba nita aan 7 2 65 StANd Ardi Menit iks khandan ea ain biasa 7 Se UMS tallati On 55an tanin a 9 3 1 Inspecting the Eguipment ooooooooooWoWoWoW WWW Jaan 9 3 2 Unpacking the Cabinet W oooo o o W oom WWW Woo 9 3 3 U PS Real Panel en a na Naa 12 9 4 UPS FrontiP ane ente el Tahan Tana Aa as a 13 2291Rackmolunt Setup ee NN DNA NA 14 3 0 Tower SOtup ex ena ae hana PN ANN hearers PORN 18 3 7 Installation of UPS with AC inputs oooooooooomWo 19 4 Power cables connection amp StartUp o oom 21 4 1 Access to terminal blOCk o oooooWoWoooWoWW oo 22 4 2 Common input sources connection nnnnnennnnane 23 4 3 Separate input sources CONNECTION ooWoWoWWW 24 4 4 Frequency converter connection ooooooW Woo 25 4 5 UPS Initial StArtUP oooooooooooo Wo mall 25 4 6 Parallel operatiOn oooooWoo W Woo momo Wc 26 DO Peran en ea aa ia 26 S1 Display Rang ena ete taman naa ail 32 5 2 Operating MOde kan nama Na aat 34
9. S L2 Output Line UPS2 Ouput Breaker 7 L1 N2 L2 ojjoljol o ljol o l ol joljo O N1 oljoljoljolfo lfo o o Oo O y UPS2 Input Breaker 30 mea JP KIUPS1 Ouput Breaker N2 A L2 oljoljoljol jolfoljo o Oo 0O N1 O O FO FO O O O O O Input Ground PS Input Neutral Input Line 1 L1 JP O NJ UPS1 Input Breaker iv si N2 L2 Figure 4 5 a Parallel systerm wiring diagram of 6K 10K 28 From Utility Mains Breaker I P Breaker 0 A UPS 1 O P Breaker I P Breaker O 6 0 O h UPS 2 O P Breaker 1 To Load Figure 4 5 b Parallel System Installation Diagram a Main O P Breaker 29 PIIEJEd 10 ssedAg UrejuleN O Mains Mechanical or static switch 6 Turn on the input breakers for the two parallel UPS 7 Pressing button continuously for more than 1 second for one UPS of the system then the system will start to turn on and enter line mode 8 Regulate the output voltage of the each UPS separately and check if the output voltage difference between the two ups is less than 0 5V If the difference is more than 0 5V the UPS need to be regulated 9 If the di
10. actual time to shutdown may vary significantly Depending on the UPS load and number of Extended Battery Modules EBMs the Battery Low warning may occur before the batteries reach 25 capacity Service Battery Alarm Code 13 A faulted battery string has been detected and as a result the battery charger has been disabled until it is replaced Contact your service representative 54 Output Overload Alarm Code 41 Output is overload Remove some of the eguipment from the UPS The UPS continues to operate but may switch to Bypass mode or shutdown if the load increases The alarm resets when the condition becomes inactive Inv Overload Fault Alarm Code 42 UPS has transferred to bypass or fault mode because of overload in inverter mode The UPS transfers to Battery mode if supporting the load Remove some of the eguipment from the UPS Byp Overload Fault Alarm Code 43 UPS has cut off the output and transferred to fault mode because of overload in bypass mode or HE mode Remove some of the eguipment from the UPS Output Short Circuit Alarm Code 31 Indicates that the UPS has detected abnormally low impedance placed on its output and considers it a short circuit Remove all the loads Turn off the UPS Check if UPS output and loads is short circuit Ensure short circuit is removed before turning on again Fan Failure Alarm Code 84 Indicates that t
11. equipment transferred to bypass utility power as a normal function of High Efficiency operation Battery mode is available and your equipment is protected EPO Active Alarm Code 71 The external contacts in the rear of the UPS are configured for REPO operation and they have been activated Check the EPO connector status 53 Site Wiring Fault Alarm Code 04 Site Fault detection is supported on all models anytime there is a Grounding Neutral connection Alarm triggers when the difference between ground and neutral voltage is gt 15v Site Fault detection should be enabled by default It can still be enabled disabled from the LCD settings menu Reconnect all input wires Utility Abnormal Alarm Code 02 Utility is out of the tolerance of input Check input mains condition Back feed Alarm Code 93 UPS has a unexpected bypass current on battery mode Transfer to maintenance bypass and call service Battery Disconnect Alarm Code 11 Battery voltage is lower than the batteries disconnected level defined for this UPS This may be due to a blown fuse intermittent battery connection or battery cable being disconnected Verify that all batteries are properly connected If the condition persists contact your service representative Battery low Alarm Code 12 The UPS is in Battery mode and the battery is running low This warning is approximate and the
12. next AC startup the UPS sets output voltage according to input line voltage After the subsequent startup auto sensing is disabled until manually re enabled by output voltage setting 10 If you installed an optional REPO test the REPO function Activate the external REPO switch Verify that status change on the UPS display Deactivate the external REPO switch and restart the UPS 4 6 Parallel Installation and Operation 4 6 1 Brief introduction of the redundancy The parallel structure is 1 1 As long as the UPS is equipped with parallel cables up to 2 UPSs can be connected in parallel to configure a sharing and redundant output power 4 6 2 Installation and operation How to install a new parallel UPS system 1 Before installing a new parallel UPS system user need to prepare the input and output wires the input and output breakers and the parallel cable 26 Users need to use a specialty 15 pin communication cable for this system which should have 15 cores corresponding stitches and shield as the UPS parallel cable The length of the parallel cable is appropriate to be less than 3 m Strictly follow the chapter of 4 the wiring requirement of single UPS to perform the wiring of each UPS Independent battery packs for each UPS Please connect the input and output wires fix all the wiring according to the Figure 4 5 and make sure all these breakers are open 27 Output Ground Output Neutral N2
13. 5 3 Turning on and Turning off UPS ooooo oo oom Wc WWW 37 54 CD Operation turn nev etic Women as 39 6 UPS IMainten an CO enam Ialah nada 48 6 1 UPS and Battery Care iiioooooo o o W Woo WWW 48 6 2 Transporting the UPS iooooooo o c Woo Wo makan 48 6 3 Storing the UPS and Batteries iiooooooooooooWooWo 49 6 4 Testing Batteries ooooooo Wo oomo mo W oma 49 6 5 Recycling the Used Battery or UPS iiiooooooo 50 7 Specifications o oooooo ooo oom 51 8 Troubleshooting oo oo aan 53 8 1 Typical Alarms and Conditions ooooooWoWoW 9 Communication 9 1 RS 232 and USB Communication Ports oooooooooW oo 9 2 Network Management Card Optional ooooooooooW oo 9 3 UPS Management Software ooooooooW W Woo 9 4 REPO Functi On Pn an 1 Introduction This Online R T Series is an uninterruptible power supply incorporating double conversion technology It provides perfect protection specifically for computer equipment communication systems to computerized instruments It protects your sensitive electronic equipment from basic power problems such as power failures power sags power surges brownout and line noise Power outages can occur when you least expect them and power quality can be erratic These power problems have the potential to corrupt critical data destroy unsaved work sessions and damage h
14. LEN GL NG Figure 4 4 Freguency converter connection 4 5 UPS Initial Startup To start up the UPS Verify that the total eguipment ratings do not exceed the UPS capacity to prevent an overload alarm 1 2 Verify that the internal batterties are connected If optional EBMs are installed verify that the EBMs are connected to the UPS Set the upstream circuit breaker not included to the I position ON The UPS display panel illuminates and shows a status of Welcome Verify that a UPS transfers to Bypass mode Press the button on the UPS front panel for at least three seconds The UPS display 2 with flashing Check the UPS display for active alarms or notices Resolve any active alarms before continuing See Troubleshooting 25 7 Verify that the UPS is operating normally and any load is powered 8 If optional EBMs are installed see Configuring the UPS for EBMs to set the number of installed EBMs 9 To change any other factory set defaults see Operation Online series recommends setting the date and time At initial startup the UPS sets system frequency according to input line frequency input frequency auto sensing is enabled by default After initial startup auto sensing is disabled until manually re enabled by output frequency setting At initial startup inut voltage auto sensing is disbaled by default When manually enabled by output voltage setting at the
15. UPS transfers to Bypass mode if supporting the load Inv Under Volatge Alarm Code 33 Indicates that the UPS get inverter under voltage fault The UPS transfers to Bypass mode if supporting the load Inv Softstart Fail Alarm Code 34 Indicates that the inverter could not soft start successfully Contact your service representative Charger Fail Alarm Code 15 Indicates that the UPS has confirmed the charger has failed The UPS turns off the charger until the next power recycle Contact your service representative Battery Over Voltage Alarm Code 16 Indicates that the battery voltage is too high The UPS will turn off the charger until the battery voltage is normal Fatal eeprom Fault Alarm Code A3 Indicates that the UPS could not read eeprom successfully Contact your service representative Negative power Fault Alarm Code E1 In parallel system power of UPS is negative Redundancy mode the fault UPS turn to fault mode without output Increase mode UPS1 amp UPS2 turn to fault mode 56 Parallel cable loss Alarm Code E2 In parallel system parallel cable disconnect Disconnect parallel cable one turn to fault mode Parallel system battery status Alarm Code E6 UPS1 connect battery UPS2 without battery Check battery connect status Line input different Alarm Code E7 Parallel system UPS1 line ok UPS2 line loss Check the l
16. ardware causing hours of lost productivity and expensive repairs With the Online R T UPS you can safely eliminate the effects of power disturbances and guard the integrity of your equipment The UPS can handle array network devices flexibility that makes it the best choice for protect your LANs servers workstations and other electrical equipment Online R T UPS as Rack installation O O Figure 1 1 Online R T 6K UPS G GJ J 9 Figure 1 2 Online R T 10K UPS Online R T UPS as Tower installation O O ke ojo O Figure 1 3 Online R T 6K UPS Figure 1 4 Online R T 10K UPS Providing outstanding performance and reliability the UPS s unique benefits include Online UPS design with pure sine wave output True online double conversion technology with high power density utility frequency independence and generator compatibility Intelligent Battery Management technology that uses advanced battery management to increase battery service life optimize recharge time Selectable High Efficiency mode of operation Start on battery capability for powering up the UPS even if utility power is not available Standard communication options one RS 232 communication port one USB communication port Optional connectivity cards with enhanced
17. ass mode Switch on the O P breakers and main O P breaker transfer the main maintenance switch or static switch from BPS to UPS Press the button of one UPS each UPS would start to turn on after that the two UPS should work parallel in Line mode How to remove a single UPS from a parallel system 1 2 Firstly a main maintenance mechanical switch or static switch should be installed for the parallel system Ensure the bypass is normal and the bypass setting is enable press the button to turn off the UPS system and the UPS system will work in bypass mode Transfer the main maintenance switch or static switch from UPS to BPS then switch off the output breakers and the input breakers and mains breaker for the two UPS and the UPS would shut down Switch off the main O P breaker and O P breaker for the UPS system Remove the wanted UPS and cables and wires Switch on the mains breaker and input breaker of the reserved UPS make sure the UPS work in bypass mode Switch on the O P breaker and main O P breaker Transfer the main maintenance switch or static switch from BPS to UPS and press the button to turn on the UPS and the UPS would start to turn on then the UPS should work in Line mode 31 5 Operation 5 1 Display Panel The UPS has a four button graphical LCD with dual color backlight Standard back light is used to light up the display with white text and a blue back
18. asures necessary when working with batteries 1 Remove all jewellery wristwatches rings and other metal objects 2 Use only tools with insulated grips and handles 3 When changing batteries replace with the same quantity and the same type of batteries 4 Do not attempt to dispose of batteries by burning them It could cause explosion 5 Do not open or destroy batteries Effluent electrolyte can cause injury to the skin and eyes It may be toxic Please replace the fuse only with the same type and of the same amperage in order to avoid fire hazards Do not dismantle the UPS except the qualified maintenance personnel 2 4 Transport Please transport the UPS only in the original packaging to protect against shock and impact 2 5 Storage The UPS must be stockpiled in the room where is ventilated and dry 2 6 Standards Safety IEC EN 62040 1 EMI Conducted Emission IIEC EN 62040 2 Category C2 Radiated Emission IIEC EN 62040 2 Category C2 EMS ESD IE C EN 61000 4 2 Level 4 RS IEC EN 61000 4 3 Level 3 EP antam Raga IEC EN 61000 4 4 Level 4 SURGE As A IEC EN 61000 4 5 Level 4 CS ries lis decanters eres IEC EN 61000 4 6 Level 3 Power frequency Magnetic field IEC EN 61000 4 8 Level 3 Low Frequency Signals IEC EN 61000 2 2 Warning This is a product for c
19. communication capabilities Extended runtime with up to four Extended Battery Modules EBMs per UPS Optional installation method Rack amp Tower Remote shutdown control through the Remote Emergent Power off REPO port Maintenances are simplified by allowing the safe replacement of batteries without powering down the UPS Parallel with another Online R T UPS max amount is 2 Optional Rack Slider PDU is standard configuration with maintenance bypass switch 2 Safety Warnings CAUTION Before performing the procedures in this document read and follow the safety instructions and important regulatory information in your Safety Environmental and Regulatory Information document IMPORTANT SAFETY INSTRUCTIONS FOR EACH STEP SAVE THESE INSTRRUCTIONS 2 1 Installation Condensation may occur if the UPS is moved directly from a cold to a warm environment The UPS must be absolutely dry before being installed Please allow an acclimatization time of at least two hours Do not install the UPS near water or in damp environment Do not install the UPS where it would be exposed to direct sunlight or near heat Do not block ventilation openings in the UPS s housing Place cables in such a way that no one can step on or trip over them UPS has provided earthed terminal in the final installed system configuration equipotent earth bonding to the external UPS battery cabinets An integral single emergency switch
20. e function of UPS 5 4 1 The main menu In the default UPS status summary screen when pressing A or lt 1s the detailed information about alarm the system status battery would be shown In the default UPS status summary screen when pressing 4 gt Is the display would enter main menu tree The main menu tree includes six branches UPS status menu event log menu measurement menu control menu identification menu and setting menu 39 Event log Measurements Control Identification Settings WELCOME gt Line Output 220 V 220 Y gt UPS status lt gt gorz pioa 60 2 100 I 5400 w Alarm 600 Output overload arm Roll Battery Volt 220V Battery resting Charger level 100 Status Increase mode Para Num 2 Running time 0001 03 01 00 Figure 5 14 Main menu tree 40 5 4 2 The UPS status menu By pressing 44 on the menu of UPS status the display would enter the next UPS status menu tree The content of UPS status menu tree is same as the default UPS status summary menu By pressing 4 1s the display would return the last main menu tree The detail information about UPS status please see Fig5 14 5 4 3 The event log menu By pressing 4 on the menu of Event log the display would enter the next event menu tree All the pre
21. e life will often have severely reduced runtimes Replace batteries at least every 5 years to keep units running at peak efficiency 6 2 Transporting the UPS NOTE The internal UPS batteries MUST be disconnected before transport CAUTION The following procedure should be performed or supervised by personnel knowledgeable about batteries and the required precaution Keep unauthorized personnel away from batteries If the UPS requires any type of transportation the batteries must be disconnected but not removed before the unit is transported 1 Verify that the UPS is off and disconnected from utility power 2 Place the UPS on a flat stable surface with the front of the cabinet facing you 3 Remove the UPS front cover 48 4 Disconnect the internal battery connectors 5 Replace the UPS front cover 6 3 Storing the UPS and Batteries If you store the UPS for a long period recharge the battery every 6 months by connecting the UPS to utility power The batteries charge to 90 capacity in approximately 4 hours However it is recommended that the batteries charge for 48 hours after long term storage Check the battery recharge date on the shipping carton label If the date has passed and the batteries were never recharged do not use the UPS Contact your service representative When to Replace Batteries When the status summary screen displays the UPS fault icon with the Service Battery alarm and the audible alarm sounds cont
22. fer time of UPS output from HE mode to battery mode is about 10ms But it is still too long for some sensitive load Line 220 6042 Output 180V 220 ME 50Hz 100 m net Fig 5 8 Converter mode In converter mode the UPS would free run with fixed output frequency 50Hz or 60Hz Once the mains is loss or abnormal the UPS would transfer to battery mode and the load is supplied continuously 1 The function could be enabled through the LCD setting or the software Winpower etc 2 The load should be derating to 80 in converter mode Line m 07 ions warnin it i 220 V 220 V g occurs it illustrates 6012 MA PAN gomz that there are some abnormal 100 5400 W problems during the operation of UPS anil Normally the problems are not fatal Aga and the UPS continues working but they should be paid attention to or the UPS may fail A Fault Ai A When the fault occurs it illustrates that 6012 MAU Pa onz some fatal problems happened the 0 0 w UPS would directly cut off the output or Fig 5 10 transfer to bypass and keep alarming The backlight of LCD would also turn to red 36 Line Output 220 Y Lane 220 Y 6042 MN 60HZ 120 6480 W Fig 5 11 Line vV Output 220 aan 220 6042 MN 60HZ 100 5400 W Overload When the UPS is overload the alarm will beep twice every second Some unnecessary loads should be get rid of one by o
23. fference output voltage is less than 0 5V switch on the output breakers for the two UPS separately and switch on the main O P breakers then the system will work normally in parallel m The output wiring requirement as follows When the distance between the UPS in parallel and the breaker panel is less than 10 meters the length difference between input and output cable of the UPSs is required to be less than 20 When the distance between the UPS in parallel and the breaker panel is more than 20 meters the length difference between input and output cable of the UPSs is required to be less than 5 How to join a new UPS to a parallel system 1 Firstly a main maintenance mechanical switch or static switch should be installed for the parallel system 2 Regulate the output voltage of the new UPS check if the output voltage difference between the new UPS and the parallel system is less than 0 5V 3 Ensure the bypass of the parallel system is normal and the bypass setting is enable then press the button to turn off the UPS then UPS will work in bypass mode 30 Set the main maintenance switch or static switch from UPS to BPS then switch off the main output breaker and the input breaker and mains breaker then the UPS will shut down Connect the cable and wire of the added UPS according to the Figure 4 5 a and Figure 4 5 b Switch on the input breakers and mains breaker and make sure that every UPS work in byp
24. ground When the UPS has a critical alarm the backlight changes the text to dark amber and the background to red See Figure below Figure 5 1 6 10K Rack On line UPS Control Panel Table 5 1 Control Button Functions The Button Function Illustration When the unit is no power and has Power on connected with battery press this button for gt 100ms amp lt 1s to power on When the unit is powered on and in Turn on Bypass mode press this button for gt 1s to turn on When the unit has been turned on Turn off press this button for gt 3s to turn off 32 When displaying default UPS status Enter main summary screen press this button menu for gt 1s to enter the main menu tree Press this button for gt 1s to exit the lt Exit main present menu to default system status menu display menu without executing a command or changing a setting Press this button for gt 100ms8 lt 1s to Scroll up scroll up the menu option Press this button for gt 100ms8 lt 1s to Scroll down scroll down the menu option Press this button for gt 100ms8 lt 1s to Enter next select the present menu option or enter menu tree next menu but do not change any setting Press this button for gt 100ms8 lt 1s to Select one Aa select the present menu option or enter next menu but do not change any option setting Confirm the l Press this button for gt 1s to confirm the p ed
25. he fan could not work normally Check fans of UPS Heatsink Over Temperature Alarm Code 81 Indicates that the temperature of heatsink is too high UPS will get over temperature fault soon If the UPS transferred to Bypass mode If the condition persists shut down the UPS Clear vents and remove any heat sources Allow the UPS to cool Ensure the airflow around the UPS is not restricted Restart the UPS Ambient Over Temperature Alarm Code 82 Indicates that the ambient temperature is higher than the operation temperature on specification 55 BUS Over Voltage Alarm Code 21 Indicates that the UPS get BUS over voltage fault because of BUS The UPS transfers to Bypass mode if supporting the load BUS Under Voltage Alarm Code 22 Indicates that the UPS get BUS under voltage fault The UPS transfers to Bypass mode if supporting the load BUS Unbalance Alarm Code 23 Indicates that the positive BUS voltage and negative BUS voltage are too lopsided to fault The UPS transfers to Bypass mode if supporting the load BUS Short Alarm Code 24 Indicates that the BUS voltage decrease very fast Contact your service representative BUS Softstart Fail Alarm Code 25 Indicates that the BUS could not soft start successfully Contact your service representative Inv Over Voltage Alarm Code 32 Indicates that the UPS get invert over voltage fault The
26. he menu of Control the display would enter the next control menu tree 1 Start Battery Test this is one command that control the UPS to do the battery test 2 Clear EPO status once EPO status is enabled the UPS output would be cut off To recover to normal status first EPO connector should be closed and enter this menu to clear EPO status then UPS would stop alarm and recover to Bypass model And UPS needs be turned on by manual operation 3 Reset Fault status when fault occurs UPS would keep in Fault mode and alarm To recover to normal status enter this menu 43 Battery 228 2v 100 Bypass input 220 4v 60 01 Line input 220 4v 60 Onz Output 220 4v 60 Onz Figure 5 16 Measurement menu tree to reset error status then UPS would stop alarm and recover to Bypass mode And the reason of fault should be checked and deleted before UPS is turned on again by manual operation 4 Restore factory settings all the settings would be recover to default factory settings It could only be done in Bypass mode Control i Identification Settings lt gt gt Buzzer Mute A Buzzer Mute no j gt turn off UPS Hold enter key to C Parallel UPS Vv Single UPS Single UPS turn off le t Y Status Battery test Single UPS OK Battery Test gt Schedule battery test no A lt Paral
27. heck for hazardous voltage between all terminals before operating on this circuit 21 External distribution panel Uninterruptible power supply B Coil remote switch Q Magneto thermal input main switch T AC Contactor rate 208 240V 45A 6K AC Contactor rate 208 240V 68A 10K 4 1 Access to terminal block Access to terminal block remove the 2 screws of the terminal block cover Figure 4 1a PDU of 6K 10K Need to reverse the cord bushing when wires conneting as below Figure 4 1b PDU of 6K 10K 22 Figure 4 1c PDU of 6K 10K 4 2 Common input sources connection A CAUTION This type of connection must be carried out by qualified electrical personnel A CAUTION Always connect the earthing wire first JOL CLeLe erererenenenen erejer BYPASS INPUT OUTPUT J LN GL NG Figure 4 2 Common input sources connection 23 LN G 4 3 Separate input sources connection AN CAUTION This type of connection must be carried out by gualified electrical personnel A CAUTION Always connect the earthing wire first elelejelelelelelelel enenenenenenenenelei pe aa a a 2 ae 10 Figure 4 3 Separate input sources connection 24 4 4 Frequency converter connection i a CULO AALHAAHAIAKIS 1978 JP LN G
28. ine input Bypass input different Alarm Code E8 Parallel system UPS1 bypass ok UPS2 Bypass loss Bypass different not allow turn on UPS Check bypass input Power strategy different Alarm Code E9 Parallel system UPS OP mode normal converter HE different Check UPS OP mode Keep OP mode be the same Rate power different Alarm Code EA Parallel system rate power different Rate power different not allow turn on UPS Keep rate power be the same HE in parallel Alarm Code EB Parallel system OP mode set as HE HE not allow in parallel system change OP mode Redundancy lost Alarm Code ED Parallel system Redundancy lost alarm enable system load is increase Redundancy lost only notice client that system isn t redundancy Redundancy lost alarm disable can make this alarm disappear 57 9 Communication This chapter contains e Communication ports RS 232 and USB Network Management Card Optional UPS Management Software REPO 9 1 RS 232 and USB Communication Ports To establish communication between the UPS and a computer connect your computer to one of the UPS communication ports using an appropriate communication cable When the communication cable is installed power management software can exchange data between you computer and the UPS The software will obtain the detailed information of the UPS on the status of the powe
29. ing device which prevents further supply to the load by the UPS in any operation mode should be provided in the building wiring installation An appropriate disconnect device as short circuit backup protection should be provided in the building wiring installation For three phase eguipment connection to an IT power system a four pole device which disconnect all phase conductors and 4 the neutral conductor should be provided in the building wiring installation This is permanently connected equipment it must be installed by qualified maintenance personnel e For permanently connected equipment make sure that a readily accessible disconnect device is incorporated in the building installation wiring To reduce the risk of fire connect only to a circuit provided with branch circuit overcurrent protection with an ampere rating in accordance with the IEC EN 60934 standard or your local electrical code and have a contact air gap of at least 3 mm Uninterruptible power supply output power 240V PowerMust 6054 LCD RM 40 amp 2 pole circuit breaker PowerMust 10900 LCD RM a 2 pole circuit breaker You can connect four extended battery modules to the uninterruptible power supply Earthing connection is essential before connecting to the building wiring terminal 2 2 Operation e Do not disconnect the earth conductor cable from the UPS or the building wiring terminals in any time since this would cancel the pr
30. ins to rotate LCD will show the WELCOME logo Then LCD will show the default UPS status summary screen after UPS finishing self test 3 Pressing button continuously for more than 1 second the buzzer will beep for 1s UPS starts to turn on 4 A few seconds later the UPS turns into Battery mode If the utility power comes back the UPS will transfer to Line mode without output interruption of the UPS 5 3 3 Turning off UPS with utility 1 Pressing button continuously for more than 3 seconds and the buzzer will beep 3s After that the UPS will turn into Bypass mode at once 2 When completing the above action UPS output voltage is still present In order to cut off the UPS output simply cut off the utility power supply A few seconds later LCD display shuts down and no output voltage is available from the UPS output terminal 5 3 4 Turning off UPS without utility 1 To power off the UPS by pressing button continuously for more than 3 second and the buzzer will beep for 3s The UPS will cut off the output at once 2 A few seconds later LCD shuts down and no voltage is available from the UPS output 38 5 4 LCD operation Except the default UPS status summary screen the user could get more useful information about UPS current status detailed various measurements previous event records which ever occurred UPS own identification and could change the settings to fit the user own requirements optimize th
31. inuously the batteries may need replacement Contact your service representative to order new batteries 6 4 Testing Batteries For a battery test please check The batteries must be fully charged The UPS must be in Normal mode with no active alarms The load must be higher than 10 To test batteries 1 Connect the UPS to utility power for at least 48 hours to charge the batteries 2 Press the button for one second to go to the main menu selection and scroll down to the Control menu using the G button 3 Press the button to enter the Control menu Use the 25 button to scroll to the Battery Test option 5 Press the 1 button to start the battery test 49 During the battery test the UPS transfers to Battery mode and discharges the batteries for 25 of the original expected runtime The status screen displays Battery test running and the percentage of the test completed The results display on the UPS status screen as completing 6 5 Recycling the Used Battery or UPS Contact your local recycling or hazardous waste center for information on proper disposal of the used battery or UPS 50 7 Specifications This chapter provides the following specifications Model list General Specification Electrical Performance Environmental and Safety 7 1 Electrical specification PowerMust 6054 PowerMust 10900 Mogel LCD RM LCD RM Output Power Capacity 6KVA 5 4KW 10KVA 9KW
32. it lt 5 52 5Hz gt 1 10 1 10 External battery module lt 0 gt 0 4 A Set running time A v LCD contrast lt 0 gt 5 45 Set running time Day 0001 Time 00 00 00 Day 0000 9999 Hour 00 23 Minute 00 59 Second 00 59 Example set rated output voltage value Setting menu tree 5 By press Aor 9 1s Output voltage lt 230V gt By pressi lt 1s Output voltage lt 230V gt The option would flash yey press Aor 9 1s to select the wanted option Output voltage lt 220V gt yey pressi gt 1s to confirm the setting The option would stop flashing Output volt i f S eT after being confirmed lt 220V gt Figure 5 20 Set rated output voltage value 47 6 UPS Maintenance This chapter explains how to Care for the UPS and batteries Transport the UPS Store the UPS and batteries Test the batteries Recycle the used Battery or UPS 6 1 UPS and Battery Care For the best preventive maintenance keep the area around the UPS clean and dust free If the atmosphere is very dusty clean the outside of the system with a vacuum cleaner For full battery life keep the UPS at an ambient temperature of 25 C 77 F Note The batteries in the UPS are rated for a 3 5 year service life The length of service life depends on the frequency of usage and ambient temperature Batteries used beyond expected servic
33. ited options and change the setting setting Table 5 2 Buzzer definition UPS condition Buzzer status Fault active Continuous Warning active Beep every second Battery output Beep every 4 seconds if battery low buzzer Beep every second Bypass output Beep every 2 minutes The UPS provides useful information about UPS itself load status events measurements identification and settings through the front panel display 33 After powering on the LCD will display Welcome logo for several seconds and then enter to the default page which shows the UPS status summary The display automatically returns to the default UPS status summary screen when no button has been pressed within 15 minutes On the UPS status summary screen it provides the following information e Status summary including mode and load e Alarm status if any are present Notes alarm including fault and warning information Battery and charger status including battery voltage charge level and charger status e Running information and running time UPS operating status Battery information UPS output information Utility input Load information information Figure 5 2 The default LCD display There are more operation details for LCD is illustrated in the chapter of 5 4 5 2 Operating mode The different graphic symbol could be displayed corresponding to current operating mode or status
34. lel UPS 4 Parallel UPS battery Single UPS test q y Clear EPO Status i Reset fault state e gt ad Clear event log e Y Status EPO active Clear no Status Fault active Reset fault no Total events 50 Clear event log no Restore factory settings a gt Reset no OO OF Figure 5 17 Control menu tree 44 Status Battery test OK j PB Schedule battery test no 5 4 6 The identification menu By press 4 on the menu of Identification the display would enter the next identification menu tree The identification information includes UPS serial number firmware serial number model type would be shown here By press lt gt 1s the display would return the last main menu tree e Control By press q 1s Identification lt gt Type Model lt By sb ypres e lt l 6000VA online HV By press or ps Serial Number Settings 123456789 A A UPS Firmware XXXXX XXXX po Figure 5 18 Identification menu tree 5 4 7 The setting menu Please contact your local distributor for further information before using the settings Some settings would be changed the specification and some settings would enable or disable some functions The unsuitable option setting by user may result in potential failures or protecting function loss even directly damage the load battery or UPS
35. ne to decrease the loads connected to the UPS Fig 5 12 Line N Output 220 Y 480v 220 Battery Test UPS is executing a battery test 60HZ p 6QHZ 100 5400 W Fig 5 13 Battery fail if the battery status detected is bad battery detected or battery disconnected the symbol of battery failure would be shown and UPS would alarm 5 3 Turning on and Turning off UPS Attention The UPS could only be turning on while connecting with the utility for the first time Attention Please switch off the connected loads at first before turning on the UPS and switch on the loads one by one after the UPS is turned on Switch off all of the connected loads before turning off the UPS 5 3 1 Turning on UPS with utility 1 Check all the connection is correct 2 Power on the UPS the fan begins to rotate LCD will show the WELCOME logo After that the LCD will show the default UPS status summary screen 3 Pressing button continuously for more than 1 second the buzzer will beep 1s UPS starts to turn on 37 4 A few seconds later the UPS turns into Line mode If the utility power is abnormal the UPS will transfer to Battery mode without output interruption of the UPS 5 3 2 Turning on UPS without utility 1 Check all the connection is correct 2 Pressing button continuously for more than 100ms the UPS would be powered on At this time the fan beg
36. nects to a twisted pair Ethernet 10 100BaseT network In addition This series UPS has AS400 card an optional accessory for AS400 communication protocol Please contact your local distributor for details 9 3 UPS Management Software Free Software Download WinPower WinPower is a new software for UPS monitoring which provides user friendly interface to monitor and control your UPS This unique software provides safely auto shutdown for multi computer systems while power failure With this software users can monitor and control any UPS on the same LAN no matter how far from the UPSs 60 FA rinpover Manager 1 0 0 5 LIACNH 154400404 System Logs Device Tools Monitor Preference Language Help Bane Voltage 222 0 V BYPASS Voltage 2300 V Frequency 499 Hz Frequency 50 0 Hz E GSKENING 3 Max Volt 223 0 On Battery Load 1 0 E LIACNW1544 Min Volt 2100 mao E liacnw1 54401 Model ON LINE Com Port COMI Temp 240 C 2011 10 21 15 17 19 UPS Output Bypass mode 2011 10 21 15 17 39 Output Normal mode Voltage 264 V Standard 2400 V Capacity 100 Installation procedure 1 Go to the website http www ups software download com 2 Choose the operation system you need and follow the instruction described on the website to download the software 3 When downloading all reguired files from the internet enter the serial No 511C1 01220 0100 478DF2A to i
37. nline R T 6K UPS Optional 1222 Figure 3 1 Unpacking the carton of 6K UPS Online R T 10K UPS Optional 7 Marual FTE Figure 3 2 Unpacking the carton of 10K UPS 10 AN CAUTION The cabinet is heavy Lifting the cabinet out of the carton reguired two persons at least Step 2 With one person on each side carefully lift the cabinet out of the outer carton using the handles on the cardboard and setit on aflat stable surface see Figure 3 3 amp 3 4 Place the cabinet in a protected area that has adequate airflow and is free of humidity flammable gas and corrosion Lifting the Cabinet Figure 3 3 Lifting the Cabinet out of 6K UPS carton 11 Figure 3 4 Lifting the Cabinet out of 10K UPS carton Step 3 Discard or recycle the packaging in a responsible manner or store it for future use 3 3 UPS Rear Panel This section shows the rear panel of the Online R T models Ground REPO Parallel Output Output Circuit Maintenance Screw Port Connector Breaker Bypass Switch o 9 5 iC 3 A o o A O Fn 2 FR 0 0 9 4 SZ 2 lo UPS Communication Slot sila USB Port RS 232 Port Input Output Terminal Block
38. nstall the software When you finish installation restart your computer the WinPower software will appear as a green plug icon located in the system tray near the clock 9 4 REPO Function The Remote Emergence Power Off interface provides an emergence power off function When the REPO function is enabled once the EPO port is pulled out the UPS would shut off the output and enter into EPO mode and the UPS would not respond anything command unless the port is plugged back 61 614 01895 00
39. ntinuous Temperature Range operating mode 15 C 60 C UPS Storage Temperature 0 35 C Battery Relative Humidity 0 95 No condensing lt 1000m for Nominal Over 1000 m the power Altitude sii power derating is 1 every 100 m Acoustic Noise lt 55dB lt 55dB 52 8 Troubleshooting The online series UPS is designed for durable automatic operation and issues alarms to alert you whenever potential operating problems occur Usually the alarms shown by the control panel do not mean that the output power is affected Instead they are preventive alarms intended to alert the user Active alarms are accompanied by an audible buzzer The control panel provides troubleshooting information from two main menus e UPS status menu Access to all active alarms Event Log menu Access to the most recent 50 events which may include active and closed alarms 8 1 Typical Alarms and Conditions Alarm or Condition Possible cause Action ON Maintenance Bypass Alarm Code 72 UPS was manually commanded to switch to bypass and will remain in bypass until commanded out of bypass Check the maintain bypass switch status In Battery Mode Alarm Code 62 A utility failure has occurred and the UPS is in Battery mode The UPS is powering the equipment with battery power Prepare your equipment for shutdown In ECO Mode Alarm Code 63 The UPS is on bypass while operating on the High Efficiency setting The
40. ommercial and industrial application in the second environment installation restrictions or additional measures may be needed to prevent disturbances 3 Installation This chapter explains Equipment inspection Unpacking the cabinet Checking the Accessory UPS setup and installation Connecting the internal battery Connecting the EBM Extended Battery Modules Installation requirements 3 1 Inspecting the Equipment If any equipment has been damaged during shipment keep the shipping cartons and packing materials for the carrier or place of purchase and file a claim for shipping damage If you discover damage after acceptance file a claim for concealed damage Note Check the battery recharge date on the shipping carton label If the date has passed and the batteries were never recharged do not use the UPS Contact your service representative 3 2 Unpacking the carton CAUTION If the carton unpacks in a low temperature of environment it may cause condensation of moisture in or on the cabinet of UPS Do not install the UPS until the inside and outside of the cabinet is absolutely dry to prevent hazard of electric shock CAUTION The cabinet is heavy Refer following instruction to unpack and move the cabinet from packing carton Be careful when moving and opening the carton The unpacking steps are shown as below Step 1 Open the outer carton and remove the accessories out of the carton see Figure 3 1 amp 3 2 O
41. otective earthing of the UPS system and all connected loads The UPS output terminal block may be electrically active even if the UPS system is not connected to the building wiring terminal In order to completely disconnect the UPS firstly press the OFF button and then disconnect the mains lead 5 Ensure that no liquid or other foreign objects can enter the UPS The UPS can be operated by any individual without previous experience 2 3 Maintenance servicing and faults The UPS operates with hazardous voltages Maintenance should be carried out only by qualified maintenance personnel Caution risk of electric shock Even after the unit is disconnected from the mains power supply building wiring terminal components inside the UPS are still connected to the battery which have potentially dangerous Before carrying out any kind of service and or maintenance please disconnect the batteries Verify that no current is present and no hazardous voltage exist in the capacitor or BUS capacitor terminals Batteries must be replaced only by qualified personnel Caution the risk of electric shock The battery circuit is not isolated from the input voltage Hazardous voltage may occur between the battery terminals and the ground Verify that no voltage is present before servicing Batteries have a high short circuit current and pose a risk of shock Take all precautionary measures specified as below and any other me
42. r environment If power emergency occurs the software initiates the saving of all data and an orderly shutdown of the equipment The cable pins for the RS 232 communication port are identified in figure 9 1 and the pin functions are described in Table 3 0000 Figure 9 1 RS 232 Communication Port DB 9 Connector Table 3 RS 232 Communication Port Pin Assignment Pin Signal Function Direction from Number Name the UPS 1 Battery Low signal Out 2 RxD Transmit to external device Out 3 TxD Receive from external device In 5 GND Signal common 58 7 Not used es On Battery signal Out 9 Vdc Power 12V Out This pin is connected via a jumper to pin 2 of SNMP connector e GND E Figure 9 2 RS 232 Communication Port V ji ne 2 NC COMMON A Pin1 Pin8 V2 GND S Comm Board Figure 9 3 Pin1 Pin8 typical application Notes The voltage of V is maximum 30VDC and current is maximum 45mA 59 9 2 Network Management Card Optional Network Management Card allow the UPS to communicate with different types of devices in variety of networking environments The Online series has one available communication bay for the following connectivity cards Connect UPS MS Web SNMP Card has SNMP and HTTP capabilities as well as monitoring through a Web browser interface con
43. vious events alarm and fault have been recorded here The information includes the illustration the event code and the precise time of UPS when the event happened By press A or lt 1s all the events could be displayed one by one The max number of record is 50 when the number is larger than 50 the latest will replace the previous By pressing 4 1s the display would return the last main menu tree 41 UPS status A v By press gt 1s 0001 05 01 00 Event log e Alarm 41 hes Output overload By press J lt 1s 1 3 0001 05 01 00 Event 02 Measurements Utility Abnormal 2 3 0000 00 00 00 Alarm 14 Over Charger 3 3 LO Figure 5 15 Event menu tree 5 4 4 The measurement menu By pressing on the menu of Measurement the display would enter the next measurement menu tree A lot of detailed useful information could be checked here Ex the output voltage and frequency the output current the load capacity the input voltage and frequency etc By pressing q gt 1s the display would return the last main menu tree 42 UPS status M Event log 1 Measurements Control By press 4 gt 1s By press 1s DC Bus 226 3v 225 9v Temperature 22 C i Output 850w 1130va f press lt orb Output 24 94 75 A v 5 4 5 The control menu By pressing on t
44. volage Range 208VAC 220VAC 208VAC 220VAC 230VAC 240VAC 230VAC 240VAC Frequency 50 60Hz 50 60Hz Voltage Distortion lt 5 Nonlinear load lt 2 Linear load lt 5 Nonlinear load lt 2 Linear load Line Mode 2mins 102 130 30s 130 150 Voltage Range Over Load 100ms gt 150 Battery Mode 10s 102 130 100ms gt 130 Efficiency Line mode gt 92 gt 93 ECO mode gt 96 gt 97 Battery mode gt 89 gt 90 Input Input wire 1 Ph L1 L2 N PE Input Type Support dual input Phase single 176 276Vac Frequency Range 45 55 54 66 Hz 51 Current 26 4A 230Vac 44 0A 230Vac gt 0 99 100 Nominal Load Power Factor gt 0 98 50 Nominal Load gt 0 95 25 Nominal Load THDI lt 5 Full load and battery full charged Battery amp Charger Battery 180VDC 5Ah 240VDC 9Ah Current 39A 48A Charger current gt 1A gt 1 7A 7 2 Typical Backup Time Typical values at 25 C in minutes Model No 100 Load 50 Load PowerMust 6054 LCD RM 3 8 4 PowerMust 10900 LCD RM 3 9 12 5 7 3 Dimension and Weight Dimension W D H mm 438 698 129 438 704 215 5 Net Weight KG 46 82 5 Gross Weight KG 50 87 5 7 4 Operating Environment Item Specification Function Standards Comments Cooling Force Air Cooling Operating 0 C 40 C Nominal power amp co
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