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1. e x BATTERY H Hearen e GB LAC Input W CD P AC Input V S 2 AC Input U z AC Input N BL ko amp GI He 8 IB Bl x L a 5 P ii D BATTERY zla P AC OUTPUT L amp Kk Les Big a CD LAC Input W E i BE AC OUTPUT N eh gt AC Input v aa S 2 AC Input U Z AC Input N PL ko OI isl 8 IB l Fig 4 9 4 Parallel connection procedures for KR B3110 S 29 KR series 6 10kVA user s manual 4 10 System inspection and testing 4 10 1 Check electrical connections After electric connection it s required to check below items for electric connection results following below instructions in below list Table 4 10 1 electric connection results examination sequence Examination Items Results Check if the color of AC input cable is correct yes Confirm if the wiring in the cabinet are not loose yes Check if the input switching unit s safety precaution marks are yes complete Check if the cable connect bars are firm Check if the polarity and sequence of battery cables are correct Check if the cable marks are correct Check if the wiring is trim and the cable colligation comply with technics criterion Check the device installation and wiring is propitious to futur
2. B 3110 S Connection methods of line Bar 4 9 2 Wire Connection of Parallel system 1 As per the installation process described above install each battery and host UPS separately Connect the AC output of parallel cells to the output jack box of parallel system Details as below wire connecting method charts for each model AN CAUTION The AC input connection and phases sequences for each cell of parallel system should be strictly consistent ensuring a same phase for bypass power of parallel system 27 KR series 6 10kVA user s manual 2 Connect all the system cells parallel connecters with Shielded communication cables then lock RS232 Ports screws 3 Parallel Connection for KR B 1110 S is demonstrated as in below figure 4 9 3 4 Parallel Connection for KR B 3110 S is demonstrated as in below figure 4 9 4 BATTERY L BATTERY Lo AC Input L I AC Input N x Oo dc Zi GND cle 5 Ola dp I oa o2 5 LA i AC OUTPUT p os Bu I S AC OUTPUT N LI BATTERY A l J BATTERY 2 TAC Input p iS c aon Kc E n E Fig 4 9 2 Parallel connection procedures for KR B1110 S 28 KR series 6 10kVA user s manual
3. 6 1 2 Periodic Preventative Maintenance To improve the efficiency and reliability of the UPS power system please complete the following preventative maintenance operations Keep environmental cleanliness to avoid the dust or chemical pollution to the UPS 2 Examine the input and output terminals every half year to ensure the good contacts 3 Examine periodically fans working status to prevent sundries to plug up the ventilation If any damage please change at the time 4 Examine periodically the batteries voltage to make sure that the voltage of the battery is not low 5 Examine periodically the system running status to find the failure in time 37 KR series 6 10kVA user s manual 6 2 Battery Daily Maintenance 1 Battery charging notice 1 Using for the first time switch to charge the battery for 4 h During charging it can still use UPS But if the power fails at the same time this time the battery discharge time may be shorter than the standard value 2 Normally it need to charge and discharge the battery once every 4 6 months Discharging first discharging until power off then charging charging time should not be less than 4 h every time 3 In high temperature area the battery should be discharged once every two months charging time should be not less than 4h each time 4 If don t use for a long time it have to charge the battery every three months each charging time should not less tha
4. being propitious to improve user system performance and boosting the reliability of bypass switch High input power factor Adopt advanced active PFC technique single phase input power factor could reach 0 99 3 phase input power factor could reach 0 95 which further alleviates load on electric network and represents green power supply of new generation High performance with competitive price Adopt multiple power transfer and high frequency PWM technique character high efficiency small size and light weight improve running reliability and reduce manufacturing cost All above help decreasing customer cost of system designation Low running input voltage KR series 6 10kVA user s manual Independent fast test technique adopted leads to no inversion of DC DC module even when input voltage lows to limit 120V so that all the output energy under the commercial supply status is transferred from electric network that can guarantee the batteries are in 100 energy storage status and decrease battery discharge number to prolong life Perfect protection function Functions designed such as output high voltage protection low battery protection over load protection fast current limit short circuit protection over temperature etc are able to avoid faults caused by manual operation mistake to guarantee reliable work in different conditions Intelligent RS232 and USB communication function optional With RS232 or USB stand
5. problem 7 UPS output is normal when the utility is on but when the utility is off UPS will no output problem 8 The buzzer give the long buzzing FAULT light on inverter failure UPS transfer to bypass problem9 The utility is on but the buzzer give the intermittent buzzing and the utility indication light is not on AC input voltage is too low to make UPS work in battery inversion which causes battery low voltage protection when battery voltage is low 1 Battery failure or battery badly damaged 2 Charger failure it can not charge the battery and then make the battery capacity not enough 3 Battery connection wire does not connect well or the terminal is poor contact 4 Have not close the battery breaker 5 Have not restart UPS after overload UPS is always in the bypass output status 1 JOverload or output short circuit UPS shut down automatically to protection 2 Driving or power tube failure 3 main control board failure 4 DC fuse open The voltage or frequency of the utility is beyond the allowed range of UPS problem10 In utility status UPS run normally when utility off UPS run normally but the equipment dead The earth connection is not well and it make float voltage between the neutral line and earth line too high problem11 All the indicator light on the panel is off The display control board does not connect well or failur
6. 2 KR indicates that this product is Kehua KR Series high frequency UPS B indicates that this product is parallel model if without B it s standard model output phase 1 indicates that it s single phase output output power indicates the output power of this product when it s 10 it indicates that the output power is 10KVA S indicates that this product is standard model if without S it s long back up model 2 2 Abstract of Product 2 2 1 Product Feature KR series 6 amp 10kVA UPS are online UPS of sine wave charactering high performance especially designed for network computer room small intelligent equipments like measure devices or industrial auto machines etc and precise instruments used in systems such as finance communication insurance transportation taxation military stock energy education government and enterprises etc specially for terrible electric network circumstance KR series 6 amp 8 10K VA UPS the online UPS of sine wave charactering high performance has mainly the following features Great adaptability for AC input Within wide input voltage range there is no need for battery supply which can effectively protect batteries Precise synchronization system with AC input The realization of exact zero phase synchronization between output and input can meet the requirement to synchronization of power supply and electric network from a variety of instruments
7. 5 V If the output of UPS through other adapter quality should be guaranteed to avoid short circuit or open circuit 4 5 Check the main input Before installation make sure load capability of grid satisfies the new equipment requirement and the power accords with the voltage and frequency on the nameplate if current carrying capability declined because of aging of cables If any doubt please negotiate the solution with the local mains supply department 4 6 UPS Installation 4 6 1 KR 6 amp 10kVA Series UPS installation Remove the UPS from bracket to ground for installation Following are installation examples for KR6000 23 KR series 6 10kVA user s manual 1 after unpacking KR6000 the external structure as below Fig 4 6 1 Installation steps 1 2 Loosen and take down 6 pieces of Hexagon bolt M8x20 Two on both left and right side between Anchor frame and tail margin supporting plates Hexagonbolt M8x20 Fig 4 6 2 Installation steps 2 24 KR series 6 10kVA user s manual 3 Move UPS from Flat Pallets to ground as following Fig 4 6 3 Installation steps 3 4 7 Battery Cabinet Installation For long back up time UPS besides mainframe also equip batteries and battery cabinet 4 7 1 Important Security Regulation Do not unclench or detach battery because it would result in injury to person skin and eye by electrolyte inside them To avoid electric shock or short circuit th
8. N 1 times of single machine rated output will alarm For example for double machines backup power system when the load of single machine exceeds 50 it will alarm the overloading 35 KR series 6 10kVA user s manual 2 Expansion Function Theoretically UPS parallel has no quantity limitation However if the quantity is over many the reliability of the whole parallel system will decrease on the contrary and can not reach the aim of improving reliability Therefore we don t suggest using parallel mode to extend gross output power In the application of UPS parallel system double machines parallel is frequently used 36 KR series 6 10kVA user s manual 6 Maintenance and Fault Diagnosis Summary This chapter describes the maintenance guide battery daily maintenance battery replacement precautions and fault diagnosis 6 1 Maintenance Guide Proper maintenance is the key to enable that the device can run in the best and with a longer service life 6 1 1 Safety Precaution Pay attention to the following safety operation regulations 1 Do remember there always exist hazardous voltage inside UPS even when UPS do not run Please make sure that the power is cut off and safe before maintenance 2 When UPS operation no golden or sliver accouterments like ring watch wore 3 Don t assume the safe operation procedure as a matter of course If any doubt consult with persons being familiar with the instrument
9. holes and fans to keep good ventilation gt The product is class A equipment It may cause radio interference when used in residential house the user should use additional measures to avoid of radio interference gt Warning label should be affixed outside UPS position area When UPS is failure it still exists dangerous voltage the warning labels should included 1 This line is for UPS power supply 2 Please disconnect this line before line operation KR series 6 10kVA user s manual 2 Overview Summary This chapter introduces the model name meaning of the device system characteristics and performance index 2 Model Explanation The meaning of KR 6kVA series model name is shown as Pic 2 1 1 KR 6000 L Long Back Up Model Output Power KR Series Online UPS Fig 2 1 1 The meaning of KR 6kVA series model name Shown as Fig 2 1 1 KR indicates that this product is Kehua KR Series high frequency UPS 6000 indicates that output power of this product is 6kVA L indicates that this product is long back up model if without L means it s standard model The meaning of KR 10kVA series model name is shown as Pic 2 1 2 KR B 1 S lora Model Output Power Single Phase Output Input Phase Parallel Model KR Series Online UPS Fig 2 1 2 The meaning of KR 10kVA series model name KR series 6 10kVA user s manual Shown as Fig 2 1
10. wave rectifier load or inductive load are not allowed to connect to UPS output such as air conditioner hair dryer starter electric drills motors fluorescent lights ect A Drilling holes on the cabinet is prohibited Inappropriate drilling will damage the device inside the cabinet Metal debris generated by drilling enters the cabinet will lead to PCB short circuit 2 KR series 6 10kVA user s manual A It is dangerous to operate under lightning storm Operation under high voltage and AC operation is prohibited during a lightning storm or in the tower or the mast operation During a lightning storm the atmosphere will produce a strong electromagnetic field Therefore in order to avoid of eguipment struck by lightning lightning protection should be grounded timely A Be careful of static To prevent static damage sensitive components make sure that you are wearing a wrist strap before contact with sensitive components such as the flapper circuit boards IC chips etc also the other end of wrist strap is well grounded A Installation with AC input and remove power cable are dangerous Installation with AC input and remove power cable are prohibited Please turn off main switch before assemble power cable or remove power cable Before connecting the cable make sure the connection cable cable labels are in line with the actual installation A Do not connect the ground wire and
11. 3 Unpacking 1 When installing transport UPS to installation site to remove outer packing 2 After unpacking please check whether the component of systems is correct and complete comparing to packing list LL Kindly Reminder For the convenience of future transportation and packing please keep the packing materials Attention Should you find the components are not inconsistent with PO please record on site and contact local branch of Kehua Group or agencies immediately 22 KR series 6 10kVA user s manual 3 After unpacking check whether the devices are mechanical damage caused by transportation LL Kindly Reminder If UPS are found serious damage on appearance further inspection must be performed and make record on site Meanwhile please contact our local branch or agencies immediately 4 4 Machine Installation 4 4 4y Machine installation notes 1 Do not place in areas with corrosive gases Ensure that the UPS be placed in well ventilated location to facilitate heat dissipation 2 Placed the UPS in a horizontal position avoid placing in the rugged and sloping areas Do not place objects on top of the cabinet 3 Before wiring do place the breaker of mainframe on the OFF status Be sure not to connect Ground line and Zero line Live line and Zero reversely mutually result in short circuit Ensure good grounding and the voltage between Zero line and Ground line must be less than
12. KR Series UPS 6 10 KVA User s Manual 1 Safety INStruCtOn m 1 1 1 Explanation of symbols a eee ai aaa dine sa si eee e iae 1 1 2 Safety POC AMON MR RA ata RE I i AET KE 1 2 OVBEVIBW suisse i a ia CIA i i k a ik i La sk DER NDA 5 2 1 Model Expl nationi re net reete iaia 5 2 2 Abstract ot Product een ire heeded Le eed ege Por e Ere ceed ai 6 2 2 1 Product Feature eei eee utin trt Rot ADR IDE di n diis ia 6 2 2 2 Technical Specifications esce Re alii 8 3 Basic Principles and Structure rcccrrseeeerie ee ee einer esee nenne nnne nnns 9 3 1 Working Principle of Single unit ses i i i ia cbe i isst licia 9 3 1 1Working Principle Diagram eem Innen 9 3 1 2 Working Principle ier eei era ti deer eel 9 3 1 9Working Procedure 5 e ied bans ate mined eii 10 3 2 Parallel System Principle L 5 e Ge e pus a p dendo t e pneus a edes 11 3 2 1Working Principle susan rec er e us ette alia 11 3 2 2Working iMod i cirio Ente RES ERE nS 11 3 9 Machine SITUGEUrS o oet aa aa a a A a t utet 14 3 9 Display Str Ct le cerit ere tt ciTe erae e exer eee eut 14 3 9 2 Display Interface t ete pere aee einige ei 14 3 3 3 KR6000L KR B 1110 KR B 3110 appearance 15 3 3 4 KR6000 KR B 1110S KR B 3110S appearance 17 4 TStallAtiON 19 S i Installatior
13. S appearance 17 DISPLA Front panel 3 3 6 KR6000 KR B 1110S KR B 3110S Front Panel and Rear Panel KR series 6 10kVA user s manual MANUAL MAINTENANCE BYPASS optional e e e 7 A SNMP p 4 eee RS232 SNMP Lo sl ee optional gi T YSB optional 3l J pir FANS MANUAL MAINTENANCE BYPASS optional FANS 2 a BYPASS Breaker Jo BYPASS Breaker POWER Breaker m POWER Breaker BATTERY Breaker BATTERY Breaker e a le amp Oo LINE BAR ox LINE BAR eu COVER 9 e COVER J B se 21 e e 8 e 3 3 e KR6000 rear panel KR B 1110S KR B 3110S rear panel 18 KR series 6 10kVA user s manual 4 Installation Summary The chapter introduces notice flow and installation steps 4 Installation Notice 1 Before install
14. UPS with higher capacity 2 If itis a temporary bypass caused by the load start up impact and it can be self recovery it treat as normal problem 4 The output is normal after UPS start but when carry the load UPS stop output immediately 1 The load is too heavy to UPS or output short circuit Reduce the load to an adequate amount or check the cause of short circuit 2 Start the load without following the starting up order high power equipment small power equipment it need to restart UPS When UPS run normally start the load in the order of high power equipment small power equipment 39 KR series 6 10kVA user s manual Abnormal situation Possible cause problem 5 UPS works properly after start up and automatically shuts off after a certain period of time It is normal phenomenon that in Battery inversion status the system auto power off caused by protection of battery low voltage when battery used up When the power recover the system will turn on automatically and charge the battery Warning in the case of UPS battery low voltage protection please immediately turn off all switches and restart the UPS and charge the battery to full capacity when power supply recovers Long period low voltage of the battery will shorten the service life of the battery problem 6 UPS working for a certain period the buzzer give the intermittent buzzing
15. VA user s manual 3 3 Machine Structure 3 3 1Display structure 3 3 1 KR Series 6 amp 10KVA display panel 3 32 Display interface 3 3 2 KR 6 amp 10KVA display interface LCD display illustration LINE When commercial power is normal light on abnormal light off when live wire and neutral wire reverse light fliter three phase in single phase out type is without this function INV Inverter normal light on abnormal light off OUTPUT UPS has output light on no output off BYPASS UPS in status of bypass supply light on in status of inversion off FAULT UPS fault light on normal off LCD Display panel 14 KR series 6 10kVA user s manual Select When UPS is normal LCD displays normal output voltage If the button pressed the background light on and the LCD display will show input voltage input frequency output power UPS status etc 8 ON When UPS is shutdown press the button for 1 sec UPS starts up When UPS is running press the button for 1 sec UPS will enter battery test model When battery voltage reaches the low voltage point or test time last 10 sec UPS will stop the function When battery is working of INV press the button for 2 sec the buzzer will stop the discontiguous beep but the warning is not eliminated of battery low voltage etc OFF When UPS is running press the button for 1 sec UPS will shut do
16. abinet o o o o o o Terminal socket connector x o o o x x wire chase Breaker relay x o o x x x Cable wire x o o o o o Radiator o o o o o o PCB board x o o o o o Transformer x o o o o o LCD x o o o o o Mark o o o o o o Carton o o o o o o Wooden crate o o o o o o Battery x o o o o o Semiconductor device x o o o o o Contactor x o x o o o Note 1 Meaning of o and x o The toxic and harmful substance in this component is less than the level specified in SJ T 11363 2006 x The toxic and harmful substance is reach the limit specified by SJ T11363 2006 at least in some homogeneous material of this component 2 The description to x The lead free welding spot is less reliable than the lead welding spot According to the current battery technology it can just provide the product with lead battery polar plate with lead so it is according with the battery instruction requirement issue by EU 43 3 Some elements of the stock plastic material don t reach the standard now they are under changing 44
17. am of Parallel system is shown as Fig 3 2 1 puli i Bypass Switch LL AC Input Main UPS1 Fig 3 2 1 Diagram of Parallel System 11 KR series 6 10kVA user s manual Parallel units all have independent bypass two UPS can directly parallel without parallel control cabinet or extra public bypass input so that they are easy to install and maintain There are below four main working modes of parallel system 1 Working mode of utility normal solid line is Energy flow of UPS as shown in Fig 3 2 2 J AC Input BLUES Fig 3 2 2 Working mode of utility normal 2 Working mode of utility abnormal solid line is Energy flow of UPS as shown in Fig 3 2 3 p LM ess 5 LL me Main UPS1 Main UPS2 hz n Fig3 2 3 Working mode of utility abnormal 12 KR series 6 10kVA user s manual 3 Working mode of overload solid line is Energy flow of UPS as shown in Fig 3 2 4 AC Input I V Batt Main UPS1 L V Fig 3 2 4 Working mode of overload 4 Working mode of one machine abnormal solid line is Energy flow of UPS as shown in Fig 3 2 5 Abnormal machine doesn t have output so supply power to load only by normal machine 1 V Main UPS2 AC Input Load Fig 3 2 5 Working mode of single machine abnormal 13 KR series 6 10k
18. anufacturers 6 Dangerous voltage may exist between battery terminal and the ground Test before touching Don t touch two poles of the battery 6 4 Fault diagnosis If the UPS fails to work properly after starting please refer to the following table 6 4 1 to find the reason Meantime check if it is caused by external environment such as temperature humidity are out of range or overload Table 6 4 1 just includes some simple fault diagnosis if the diagnosis answer is not very clear or the information is not enough to solve the problem please contact with Kehua local agency or distributor to deal with the matter Abnormal situation Possible cause problem1 Utility is normal UPS is in the battery inversion status and the buzzer alarm intermittently problem 2 After UPS is installed close the breaker or power switch the fuse burn or tripping problem 3 After UPS start the output is 220 230VAC but the UPS is still working in the bypass status Unstable AC power input as a result of poor contact of the junction points sockets or other connection parts of the electric network feeder circuit connected to the UPS UPS three input wire connect incorrectly for example the connection of neutral line or live line and earth line is reversed Or three output wire is connect wrong 1 The load connected to the UPS is too heavy which exceeds UPS output rate capacity It have to reduce the load or choose the
19. ard data interface supported by UPSilon 2000 power monitor software the status of electric network and UPS can be directly inspected on the computer monitor The product can also support SNMP network adaptor which will make the UPS as newcomer of network immediately realizing network administration and improving system reliability KR series 6 10kVA user s manual 2 2 2 Technical Specifications Table 2 2 1 KR Series 6 10K VA Main Technical Specification KR1110S KR3110S KR B1110S KR B3110S KR3110 KR B3110 KR6000L Input Characteristic Rating voltage V 120 140Vac half full load 140 160Vac 75 full load 160 276Vac 100 full load Rating Freguency Hz 5041096 Phase Single phase three line Three phase fiv line Battery voltage Vdc Output Characteristic Capacity VA W 10kVA 8kW 6kVA 4 8kW Voltage V 220x296 Frequency Hz 50 0 1 Battery mode Waveform Sine wave THD lt 3 transfer time ms 0 Overload capacity 10596 13090 rating load last 10min then turn into bypass 130 150 rating load last 1 min then turn into bypass Abovel50 rating load last 1 sec then turn into bypass Output Mode Terminal Other Characteristic Back up Time Configure optionally Charge recovery time 20 H 100AH a group 20 H 100AH a group Communication interface RS232 USB interface supports Upsli
20. arning till battery voltage drop to the discharge limitation point then UPS would stop inversion and emit lasting sound In addition UPS has overload protection When overload 12596 full load happens UPS would turn to bypass supply and return if load recovers normal When more serious overload over 15096 full load appears UPS would halt inversion and switch to bypass supply at the time the switch may have jumped After fault of load eliminated as long as turn on the switch UPS will restart to work again Audio light warnings will always go with UPS when UPS abnormal The warnings or protections are shown in detail in Table 3 1 1 Table 3 1 1 The Functions of Abnormal Status and Warning Protections Protection UPS Status Beep Indicators On Panel LCD Display i Warning INV On Line on Output Voltage Normal No beep Bypass off Fault off No 220 0 V Output on INV On Bypass off Output 220 0V Tum to bypass 105 overload Once every 1 5 sec Fault off Output on OVERLOAD supply in 10 min Bypass on INV Off Output 220 0V Turn to bypass 12596 overload Long beep Fault on Output on in 1 i OVERLOAD supply in 10 min min INV Off Bypass on Output 220 0V Protected 15096 overload Long beep Fault on Output on LOAD PROTECT INV On Line off Output 220 0V Low voltage point Once every 0 5 sec Bypass off Fault off Waning BAT LOW Output on INV Off Line
21. artup steps as following 1 After confirming correct installation start parallel units in turns as per UPS start steps 2 When each unit has input from inverter mode test inverting voltages of each parallel unit the difference between Max and Min voltage should not exceed 5V At this time close the breakers of each parallel unit s switching box and the circumfluence current should less than 3A If the voltage difference is bigger than 5V check whether the voltage of each UPS unit is 220V If the voltage difference is bigger than 10V report for maintenance In addition too big circumfluence current will lead to inverter damage If the circumfluence current is bigger than 3A report for maintenance 3 Then close the output switching box s main air breaker each output branch air breaker then start the loads in turn 5 4 2 Parallel System Shut down System should not be turned On Off frequently when it works normally 1 Shut down all the output loads of the Parallel System firstly 2 Shut down each UPS unit following the shutdown sequence by pressing the Off key on panel in turn 3 Turn off the output breaker on each UPS unit It s allowed to not shut down in daily usage 5 4 3 Online shutdown Parallel System When a parallel unit fails this parallel unit will quit the parallel system automatically with voice and light alarm Now just operate the process according to chart 5 4 1 to make the failed unit completely quit f
22. ce A Life risk Contact high voltage and mains directly or indirectly through humidity objects will cause life risk 1 Only authorized professionals are allowed to open the UPS chassis The UPS input and output voltage is high risk Contact the high voltage will bring life risk 2 Please disconnect the AC power battery before maintenance And test the output terminal block with a voltmeter before maintenance to ensure that the input is turned off and in safe condition 3 Even if all external power is disconnected UPS internal capacitor exists residual electric charge and output terminal blocks exists high voltage which may endanger life So it needs to put the UPS aside long time 210 min the UPS chassis could be opened after charge released 4 Battery cable has not separated with AC input Dangerous voltage may exist between battery terminal and ground terminal Battery pack exists high voltages which may endanger life please make sure that they are insulated when installation or use 5 Easy conductive objects such as watches bracelets and rings are forbidden during operation 6 The UPS installation person should have the qualification of high voltage and AC power operation Power system maintenance and repair could only be done by professional person 7 Leakage risk The UPS must be grounded before electrical connections The ground terminal must be connected to the ground A Unbalanced load half
23. check following below requirements Only when confirm all is in good condition the UPS can be started 1 Connect rated power to the input terminal bar 2 Check the load equipments 1 Confirm the load is non inductive load UPS is not recommended to connect with the inductive load such as motors fans air conditioners etc Such loads usually use the grid power directly 2 Make sure that the load is turned off Meanwhile the load capacity shall not exceed the UPS rated output capacity otherwise it will cause the system overload protection Calculation of load capacity as follow KR series UPS load capacity are designed as per 80 nominal rated power of the resistant load Generally UPS with computer load can withstand the maximum load number n estimated as following Dd pis p i l P is UPS output capacity VA Pi is the No i load capacity VA 3 Confirm the UPS has no short circuit between the input live line and neutral line and between the live line and the ground line Also confirm no short circuit between the output lines 4 Check if the air breaker on UPS is on OFF 32 KR series 6 10kVA user s manual 5 Make sure the computer and other devices are power off 5 3 2 UPS Startup Steps Electrifying Turn the power switch ON on the real panel as per below sequence POWERBATTERY Start Up press On key on the panel and startup inverter Before UPS work stably the automatic bypas
24. ction of each part The side of the carton should be with the warming mark of no humid handle with care upwards max number of stacking and etc also with the model information The front of the carton should be with Kehua logo and model name A 2 Transportation Take care the warming mark on the carton when carry it It can not be striked tempestuously It have to be placed as the direction mark on the carton to avoid damage the component when transportation It is not allowed to carry with the inflammable explosive and caustic goods It can not lay in open storage when transshipment on route The equipment can not be drenched by rain snow or wet goods and mechanical damage A 3 Storage Place the equipment according to the signs on the carton It should part from ground for 20cm part from wall hot source cold source windows or air entrance for 50cm Environment temperature for storage is 0 40 C relative humidity is 20 80 the stock should not have any baleful gas flammable and corrosive chemistry have not strong shake strike and magnetic field The storage period in this condition is for six months over six months the equipment should be checked and charged the battery every three months 42 Appendix B Table of Toxic and harmful substance in product Declare the Toxic and harmful substance HNS Component Pb Hg Cd cr PBB PBDE C
25. d boost circuit DC DC battery voltage boost circuit DC AC inverter switch charger and battery group etc When commercial power is normal through PFC it can be boosted to stabilized DC supplied for DC AC inverter to output steady 220VAC and finish battery charge at the same time When commercial power is abnormal through DC DC the battery voltage will be increased to stabilized DC supplied for DC AC inverter Because of PFC and power down fast test technique adopted even when the commercial power voltage lows to limit 120V the battery group can still have no output current to assure battery longevity and be kept in energy storage status and if commercial abnormal battery voltage boost will start up at once to assure steady DC AC output As shown in the Figure 3 1 1 the DC AC inverter adopts half bridge structure DC DC module uses boost circuit PFC is active power factor correction circuit and CHARGER is a kind of complete isolation charger KR series 6 10kVA user s manual 3 1 3Working Procedure When 220Vac normal main DC circuit has DC voltage supplied for DC AC AC inverter which outputs stable 220Vac and charges battery at the same time Whenever commercial power was low or broken down suddenly the battery group would feed back electric power to DC circuit through DC DC voltage boost module There is no transfer time from mains supply to battery supply When batteries energy is used up UPS would send out audio light w
26. e modification capacity expand and maintenance 4 10 2 UPS testing Test UPS disconnect bypass switch or main source input switch and then simulating main source failure is allowed Upon main source failure main source LINE LED light black out and the buzzer will alarm 3 times every 10 seconds 4 10 3 Connect with the load Only after UPS starts and is stably working then open the load device first start high power devices then start small power equipment Some devices has large current upon starting which may cause overload protection or bypass operation It is better to start such equipment before the other devices 30 KR series 6 10kVA user s manual 5 Using and Operation Summary Operation steps and methods are introduced in this chapter including preparation before electrifying UPS start steps when main source is normal as well as UPS start steps and indicator light meaning when main source fail 5 Notes of using UPS 1 Before the UPS startup check if the load is proper which should not exceed the rated power to avoid UPS overload protection or power supply from bypass all the time 2 Do not use the switch on the UPS panel as the power switch of the load equipments Should strictly follow below sequence to turn on or off UPS when startup firstly turn on the switch on the UPS panel then turn on the equipments While shutdown firstly turn off the switches on the load e
27. e 40 KR series 6 10kVA user s manual 6 4 2 Troubleshooting for the failure of single units system and parallel system 1 How to deal with the failure in single units system When single units system is failure cut off the power by OFF button on the UPS panel If necessary shut down the load cut off the UPS input output breaker to ensure that the UPS will not be damaged more 2 How to deal with the problem of main unit in standby system in series How to deal with problem when the slave unit is failure Standby system in series when the main unit is failure cut off the power to the main unit by OFF button on the UPS panel at the same time cut off the utility input breaker and battery breaker of the main unit Then inform the engineer to repair the unit When the slave unit is failure cut off the power to the slave unit by OFF button on the UPS panel at the same time cut off the utility input breaker and battery breaker of the slave unit Then inform the engineer to repair the unit 3 How to deal with the failure in parallel system When any unit in parallel system is failure cut off the power to the UPS by OFF button on the UPS panel then cut off the utility input breaker and battery breaker of the faulty unit and inform the engineer to repair the unit 41 Appendix A Packaging Transportation and Storage A 1 Packaging Packed by carton pay attendtion to the requirement of the layed dire
28. e following precautions should be strictly complied with when replace batteries Do not wear watch ring or other metal accouterment Use tools with insulation handle No placement of tools or metal on the battery No fire is close to batteries and no smoking 4 7 2 Installation Steps To achieve safe operation and avoid unnecessary harm to the UPS all the assembly of external batteries should be executed by the professional technicians and follow the manipulation sequence below 1 Complete the wiring among the external battery groups but temporarily do not connect them to the input end of external battery of UPS 2 Connect the input power cable to UPS assuring that the polarity and input voltage accord with the specification 25 KR series 6 10kVA user s manual 2 Under the status that the AC input is normal and UPS has no load turn on the main switch of UPS to measure the DC voltage of external battery connection 3 Ifthe result gained from step 2 called charge voltage is normal then connect the external battery group to UPS At the moment confirm that the connection polarity is correct 4 After assembly and test finished the UPS can be put into use 4 8 Parallel System installation According to the installation methods described previously connect battery and UPS mainframe of parallel system respectively and independently Connect AC output of each parallel system to output power distribution bo
29. eaker A AC Input 37 5 100 57 100 DC input 45 100 38 100 Selection of Input and output cable Selection of Conductor sectional for the input amp output cables of UPS and battery cable please refer to corresponding recommended value listed on table 4 3 2 21 KR series 6 10kVA user s manual Table 4 3 2 Recommended Conductor sectional of UPS mm KR6kVA KRIOKVA AC INPUT Live and 6 10 Zero line AC INPUT G 6 6 DCINPUT Positive 1 1 and Negative 0 9 AC OUTPUT Live 6 10 and Zero line Cross sectional area of cable mentioned above is only suitable for 5 meters cable If length of lead is longer than 20 meters the Cross sectional area of cable must be enlarged accordingly 5 lightning protection Incoming line of mains supply must be equipped with multilevel lightning protection system to ensure devices running safely at frequent lightning area For outdoor installation the lightning protection level of AC input must be promoted 4 3 2 Unpacking and inspect the machine 4 3 2 2 Transportation 1 Arrange appropriate transportation and lifting according to the size of packages such as forklift 2 If the volume of packages are too big there need to select unpacking site Generally the unpacking site must the closer the better 3 During the convey process do pay attention to the turning up gradient and down ramp to avoid crash 4 3 2
30. flat ground avoid sloping and scabrate ground Do not place goods on the UPS nor do the person sitting Avoid place at location such as sunlight rainy and moist Avoid place where etchant gas included in the air 19 KR series 6 10kVA user s manual If UPS are placed at location under 0 C too long please turn on the UPS before temperature above 0 C for more than 2 Hours 4 2 Installation process Installation process for KR Series 6 amp 10kVA please see Fig 4 2 1 Installation preparation UPS installa tion Electrical Installation connection checking BATT Cabinet Installation i Options Ci Installation Besesosonesonecenono Fig 4 2 1 installation chart for UPS system LL Note Tested and installed only by manufacturers or authorized engineers 4 3 Installation preparation 4 3 1 Checking the installation site A Attention Before installing UPS please ensure sites and environment meet basic conditions prescribed in this chapter to ensure UPS running safely and normally If sites not reach basic conditions please reconstruct accordingly Only after site meet basic requirements that UPS can be installed 4 3 1 1 Environment Requirement Ambient temperature Relative humidity 0 RH 95 RH no condensation Cooling mode air cooling 20 1 KR series 6 10kVA user s manual Altitude meet GB T 7260 3 2003 Verticality no shoc
31. iNOLGG siate ner m Ere REPRE RES eee 19 4 2 Installation process nennen nene nnne nnne nnn 20 4 3 Installation preparation mme 20 4 3 1 Checking the installation site stone ease tia a as a tested dae 20 4 3 2 Unpacking and inspect the machine i 22 4 4 Machine Installatiori oi ccr tree rx oh aco Ek ented HR RE e ERR ERES 23 4 4 1 Machine installation notes eese nennen 23 4 5 Check the main IDDUE oae ceca eate plac cereus ideas pai eiit din cem merli 23 4 6 UPS Installation Be I 23 4 6 1 KR 6 amp 10kVA Series UPS installation esses 23 4 7 Battery Cabinet IristallatlOmrs us odis uendere ide eiie de a aaa ai 25 4 7 AImportarit Security Regulation licia 25 4 72 Installationi Steps cse prec nre role ala alal ai eee 25 4 8 Parallel System installation kaka aa aaaaaaaka an akaaaaaaaa aaa aaa anna aaa aaa aaa aa asas aaa 26 4 9 Electrical connection ied rrt ce Vasa a Rer deed eu 26 4 9 1 Mode of Single Unit Connection ce cceeeseceeeeesecceeeeeeeaeeeeeeseeeeeeeeeaeeeeeenaeeees 26 4 9 2 Wire Connection of Parallel system ccsscceeeesseeeeeeeeeeceeeeeseaeeeseenseeeeeenneaeeees 27 4 10 System inspection and testing 4 10 1 Check electrical connections 430 2 JUPStesling ee 4 10 3 Connect with the l
32. in order to avoid of unsafe operation which will endanger personal safety or equipment damage 1 1 Explanation of symbols Safety symbols please refer to table 1 1 1 these symbols are used to remind the reader to abide the safety operation during the installation operation and maintenance Table 1 1 1 Safety symbols and meaning Safety symbol meaning Safety tips 2 Safety precautions The UPS internal exists high temperature and voltage the equipment installation the operator must comply with relevant safety standards and operational procedures during UPS installation operation and maintenance processing or it may cause personal injury or equipment damage The safety precautions mentioned in the user manual only as a supplement to local safety regulations The manufacturer company does not responsible for any breach or violation of general requirements of safe operation or violation safety standards of the design production and use of equipment Different brands and different types of battery charging voltage requirements are different make sure that the charging voltage of UPS and battery charging voltage are matched if any doubt please contact the manufacturer or distributor for support Any change of system KR series 6 10kVA user s manual configuration structure or components will affect the performance of UPS if the user wants to make any change please consult with manufacturer or distributor in advan
33. ing UPS check if the feeding circuit of grid is clear including contacts of all the connection points as well as sockets are OK so as to avoid open circuit or short circuit 2 Asforthe input which is one phase three lines system do check whether the grounding is good and ensure the voltage between zero line and grounding line is less than 5V If the input grounding line of mains supply is null the voltage could be 100V If the users load has strict requirements on the voltage between the zero line and the grounding line of the power supply make sure the grounding of the mains supply is good so as to avoid unnecessary loss 3 When you are installing UPS do not connect the zero line live line and grounding line of Input and output of the UPS reversely or wrongly so as to avoid short circuit Meanwhile Please check whether the voltage of the mains supply is normal 4 If battery group installed for long back up time do strictly accord with connection method and sequence prescribed by the installation manual to wire and the wiring must be tie tightly Short circuit to the polarities of battery and touch any two wiring terminals simultaneously or bare ends of connecting wire are absolutely forbidden Otherwise it would result in battery damage or even person injury When battery group connected to UPS check if the voltage of battery group coincides with that demanded by UPS 5 UPSinstallation requirements Lie UPS on the
34. k with orthogonal rake not exceeding 5 Pollution rank Class II The UPS should be installed in the environment where exists enough ventilation coolness not too high temperature and without dust The recommended work temperature is 20 25 C and the humidity should be controlled around 5096 Note Not allowed to install at environment with dust of metal conduction 4 3 1 2 Power supply requirements Grounding preparation Grounding terminals are ready and voltage between Zero line and ground line is less than 5 V 2 AC input voltage and load capacity of incoming line of mains supply Before installing UPS please ensure the AC input voltage and load capacity of incoming line of mains supply meet the requirements of devices to take the decreased in current carrying capacity by aging of wire into account Equip Breaker protection for AC input Install breaker or power distribution boxes that match with the power of mainframe before the input cable of mainframe to isolate mainframe and mains supply Taking into account the impulse current of power on moment the breaker be selected must be 1 5 2 Times of Maximum current of Mainframe and breaker should not with leakage protection to avoid improper operation of breaker Selection of breaker please see details at table 4 3 1 Table 4 3 1 Recommended value of breaker KR6kVA KRIOKVA Recommended Recommended MAX Current A MAX Current A Breaker A Br
35. n 4h 2 When cleaning battery case it have to use cleaning cloth with the clear do not use oil substance or organic solvent such as gasoline and thinner 3 Battery should be kept away from ignition source as well as all electrical equipment that may easily cause spark to avoid explosion 4 During the use of battery unit equipped for UPS regularly check if the charger is in good condition to prevent the battery from being overcharged or undercharged for a long time and to avoid excessive discharge of battery After discharging immediately no later than 24 hours perform complete charging only after then will the re discharged be allowed Never re discharge if the battery is not completely charged otherwise it will cause decrease in battery capacity or even damage to battery 5 When not using UPS please turn off the battery breaker on the UPS to avoid long time discharge after commercial power failure 6 3 Battery replacement 1 Do not throw battery into fire to avoid explosion 2 Do not open or disassemble battery as the electrolyte is harmful to skin and eyes 3 Properly recycle the battery according to relevant instructions thereon 4 Please consult with expert engineer when replace the battery 38 KR series 6 10kVA user s manual 5 Replace the used battery with new ones that are of same capacity same type and same manufacturer It is strictly prohibit to use the battery with different capacity type and m
36. neutral wire live wire and neutral wire reversely which will cause short circuit It should be well grounded the voltage between ground wire and neutral wire should be less than 5V A Please use specified battery model Non specified battery will cause damage to UPS A Battery operation must be done according to instructions KR series 6 10kVA user s manual Battery operation must be done according to the battery user manual instructions especially for battery wire connection Non standard operation will damage the battery even endanger life 1 Prohibit to short circuit the positive and negative of the battery The battery connecting wires must be tightened Touch the battery s every two wire connectors or bare wire terminals are prohibited or it may cause battery damage or endanger life 2 Prevent the battery electrolyte overflow The metal objects and circuit board will be corroded by the electrolyte which will result in equipment damaged and short circuit 3 Battery should be stayed away from fire and all the electrical equipment which could cause sparks easily to avoid danger or unnecessary losses gt Be careful for the rotating fan When remove the fan do not put fingers or tools into the rotating fans before the fan stopped in order to avoid equipment damaged or life injured gt Keep good ventilation of the equipment Ensure that no objects are in the front of air in and air out
37. oad 5 Using and Operation 5 1 Notes of using UPS eie 5 2 UPS single unit operation process 5 3 Operation instruction sees 5 3 1 Inspection before power on 5 3 2 UPS Startup SIpS iiec tenens 5 3 3 Start the load e reee 5 3 4 Shutdown UPS rni Lets 5 4 Operation of Parallel system 5 4 4 Online start up Parallel System 5 4 5 Redundancy and Expansion of Parallel System i 6 Maintenance and Fault Diagnosis 6 1 Maintenance Guide e toit eet ertet 6 1 1 Safety Precautlon rers 6 1 2 Periodic Preventative Maintenance 6 2 Battery Daily Maintenance 6 3 Battery replacement i 6 4 Fault diagnosis eeen pA TTA tt An MEE MN cM Eu 6 4 2 Troubleshooting for the failure of single units system and parallel system Appendix A Packaging Transportation and Storage AA Packaging natans ERES Ue A 2 Transportation eee AS SOG atic etic ee Meee eke Appendix B Table of Toxic and harmful substance in product KR series 6 10kVA user s manual 1 Safety instruction Summary This chapter describes the safety symbols and safety precautions Please read this chapter carefully before any operation of UPS
38. off Battery voltage below Output 220 0V R Long beep Bypass on Fault on Protected protection point BAT PROTECT Output off Three beep with INV On Line off Input breaker cutoff or Output 220 0V 100ms interval every Bypass off Fault off Warning input abnormal LINE FAIL 10 sec Output on INV Off Line off Output 220 0V Over temperature Long beep Bypass on Fault off Protected OVER TEMP Output on Output over voltage INV Off Bypass on Output 220 0V Long beep Protected Output low voltage Fault on Output on INVERTER FAIL 10 KR series 6 10kVA user s manual Short circuit INV Off Bypass on Output 220 0V Long beep Protected Fault on Output on OUTPUT SHORT Note If commercial power recovers after low voltage protection to battery the product will restart and charge batteries 3 2 Parallel System Principle 3 2 1Working Principle Parallel flow equalization of AC input is mainly through rapid adjustment of paralleled single s output waveform amplitude and phase then make them strictly the same to achieve current sharing purposes Any difference of the voltage amplitude or phase may have a great circulation seriously it may cause overload or inverter damage As the high power UPS itself may have large interference therefore parallel systems must have strong anti interference features thus ensure the system reliability service 3 2 2Working Mode Diagr
39. on 2000 software and SNMP protocol optional AC fail low battery AC fail low battery Overload Over temperature UPS Overload Over fault Incorrect input connection of phase sequence temperature UPS fault EPO function when the EPO signal is off output is off Maintenance bypass optional with manual maintenance bypass convenience for uninterruptible maintenance Panel display LED displays operation status and LCD displays parameter Audio noise dB A 65 Protection function Low battery over voltage overload short circuit and over temperature Working temperature 0 40 C Relative humidity 0 95 No condensation Size mm WxDxH 255x565x 255x565x 255x565x 255x565x 255x565x 255x565x 700 500 700 500 700 500 Weight Kg 69 23 70 24 71 27 Specifications are subject to change without prior notice 8 KR series 6 10kVA user s manual 3 Basic Principles and Structure Summary This chapter mainly introduces the principle and overall structure of KR Series 6 amp 10kVA UPS including the display meanings of panel indicator lights and definitions of external interface 3 Working Principle of Single unit 3 1 1Working Principle Diagram AC INPUT Fig 3 1 1 KR Series Working Principle Diagram 3 1 2 Working Principle UPS KR 6 10 KVA is made up of PFC AC DC Commercial power rectification an
40. quipments then the UPS In this way frequent startup can be avoided 3 Till the UPS startup into steady work status turn on the load equipments with sequence of high power ones first and low power ones later because the startup current of some equipments are large enough to result in over load protection or bypass protection So it is advisable to start such equipments before the others 4 When the UPS connected to the generator necessary as the mains supply cut off firstly start the generator Until the generator is on steady work status turn on UPS otherwise the UPS or the load equipments may be damaged And reversely disconnect the UPS firstly and then the generator before the generator turned off 5 2 UPS single unit operation process The operation steps are demonstrated as below figure 5 2 1 For the first time starting the UPS it s required to check before power on As introduced in 5 3 1 section when confirm all is in good condition the UPS can be turned on If UPS will not be used for long time it needs to be checked before power on 31 KR series 6 10kVA user s manual Running stable Fig 5 2 1 single unit operation Steps for KR series 6 amp 10Kva Check the system information according to panel indicator Start the load If not use for long term Stop using UPS 5 3 Operation instruction 5 3 1 Inspection before power on Before electrifying for the UPS please
41. rom parallel system and realize online hot maintenance or replacement 34 KR series 6 10kVA user s manual Shutdown broken UPS according At paralleled distribution box to UPS shutdown steps disconnect the paralleled unit breaker connected with UPS Picture 5 4 1 online drop out Parallel Unit AN Caution When the parallel system is working normally it is better not to quit its output from parallel system without shutting down parallel unit otherwise the power system will appear abnormal 5 4 4 Online start up Parallel System When online launching one or more parallel unit is needed just follow the operation steps on Fig 5 4 2 After the new unit is operating stably it will enter parallel system automatically and achieve current sharing operation At paralleled distribution Start new added box close the breaker paralleled units one connected with the new byone according to UPS added unit startup steps Fig 5 4 2 online Launch Parallel System 5 4 5 Redundancy and Expansion of Parallel System 1 Redundant Function When using N 1 parallel redundant backup design total output load should not be large than N times of single machine rated output When 1 single machine fails this single machine could launch and quit freely without affecting the operation of parallel system so it could improve the reliability of power system When the output exceeds above load the overloaded single machine exceed N
42. s will supply power to the load At this time all the indicators are light except failure indicating light A while later bypass light is off UPS turn to inverter status and UPS has started and enter working with no loads 5 3 3 Start the load Observe the indicator on the pane referring to below chart 3 3 2 to judge the working status of UPS When it indicates the UPS is in inverter working mode or battery working mode it can supply power to the load After the UPS has running about 10 minutes without load start the load according the sequence high power equipment low power equipment AN Caution 1 UPS is not allowed to connect with the inductive load such as air conditioners fans starters electric drills motors and daylight lamps etc 2 Some devices has large starting current which may cause overload protection or bypass operation it is better to start such equipment before the other devices 5 3 4 Shutdown UPS 1 Turn off the load let UPS working with no loads for 10 minutes to vent the inner heat 2 Turn off UPS gently press OFF key on the panel to shut up UPS 3 Disconnect power turn the switch to be OFF on the rear panel following below sequence BATTERY BPOWER 93 KR series 6 10kVA user s manual 5 4 Operation of Parallel system 5 4 1 Parallel System start up Please keep load off before Parallel System starting up and make sure all the breakers are off St
43. wn 3 3 3 KR6000L KR B 1110 KR B 3110 appearance 3 3 3 KR 6000L KR B 1110 KR B 3110 appearance 15 KR series 6 10kVA user s manual f DISPLAYL 7 7 SNMP rsa SNMP optional d optional I MANUAL MANUAL FANS MAINTENANCE MAINTENANCE BYPASS BYPASS optional Fans optional AR INLET BYPASS Breaker BBH BYPASS Breaker POWER Breaker _ TT POWER Breaker BATTERY Breaker BATTERY Breaker A k o LINE BAR LINE BAR 9 e COVER PT COVER I k e BA cu EL 3 Front panel KR6000L rear panel KR B 1110 KR B 3110 rear panel 3 3 4 KR6000L KR B 1110 KR B 3110 Front Panel and Rear Panel 16 KR series 6 10kVA user s manual 3 3 4 KR6000 KR B 1110S KR B 3110S appearance 3 3 5 KR6000 KR B 1110S KR B 3110
44. x of parallel system Attention Connection and phase sequence of AC input of each unit of parallel system must be the same ensure bypass power supply of parallel system in phase Connect parallel ports of each unit of parallel system using shield communication cable equipped And fasten relevant screw of RS232 4 9 Electrical connection 4 9 1 Mode of Single Unit Connection Connect power cord provided by manufacturers to relevant terminals and ensure reliability of connection AN Attention When wiring make sure that the wires and terminals of input and output should be contacted reliably no disqualified contact and reversed wiring AN Attention 2 For single unit application there do not need additional wiring for bypass live line and Zero line 26 KR series 6 10kVA user s manual OUTPUT PE INPUT BATTERY L N Np ie AC Output L DC input AC Output N Grounding be inp AC Input L AC Input N Fig4 9 1 KR6000 L KR B I110 S Connection methods of line bar OUTPUT PE INPUT BATTERY LIN N U v w AC Output L Grounding 240v00 AC Output N AC Input W AC Input V AC Input U AC Input N Fig 4 9 1 KR

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