Danfoss DLX 2.0 UL User Manual
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Danfoss DLX 2.0 UL User Manual

Solar inverters
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MAKING MODERN LIVING POSSIBLE
DLX

User Guide

DLX 2.0 UL - DLX 2.9 UL - DLX 3.8 UL - DLX 4.4 UL
SOLAR INVERTERS

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Summary of Contents for Danfoss DLX 2.0 UL

  • Page 1: User Guide

    MAKING MODERN LIVING POSSIBLE User Guide DLX 2.0 UL - DLX 2.9 UL - DLX 3.8 UL - DLX 4.4 UL SOLAR INVERTERS...
  • Page 2 D Danfoss and the D Danfoss logo otype are reg gistered trad demarks of Danfoss A/S S. All rights r reserved. Copyright t ©: Danfoss, , 2012 ser Guide DLX UL series L00410625-0...
  • Page 3 IMPO ORTA ANT S SAFE NSTRU UCTIO ONS! VE TH HESE INST TRUCT TION Safet ty Instruction This U User Guide co ntains impor rtant safety in nstructions fo or DLX UL inve erter series, w which must b thoro oughly read a nd followed prior to insta...
  • Page 4 Us s er Guide DLX UL series L00410625-0 0 1...
  • Page 5 CONTE ENTS Introducti on ........................ 6 Product O verview ....................... 7 2.1. andards and Approvals ......................... 7 2.2. eneral Inform ation ..............
  • Page 6 NTRO ODUCT TION The D DLX UL inverte ers are amon g the most e fficient single e phase grid- -tie inverters on the marke et, which resu ults in high y yields from th e solar array. Figure 1.1: PV V system overview DC to o AC...
  • Page 7 PRODU UCT O OVERV VIEW This c chapter gives s an overview w of the invert ter with its su upplied comp ponents and how they are assem mbled. A brief f explanation n of how to u npack and ha andle the inv verter safely is s given, and...
  • Page 8 2.2.3 Key F eatures • Wor rld’s highest peak efficien ncy for isolate ed inverters: u up to 97.3 % • Flex xible system c configuration • Mon nitoring 24/7 • Inte ernal data log gger with stor rage capacity y of 15 minut tes intervals f for one week,...
  • Page 9 2.3.1 Label ling 2.3.1 1.1. Prod uct Label The p product label is attached t o the lower r right side of t the inverter h housing. It co ntains impo rtant identific cation inform mation and ch haracteristics s for the inver rter, and mus st be clearly visible...
  • Page 10 2.3.1 1.2. PCB L Labels The P PCB labels ide entify importa ant informati ion about the e different te rminals in the e customer conne ection area. Table 2 2.4: Symbols app earing on the PC mbol escription Symbol Descri iption C: Alternating...
  • Page 11 • Carr ry the inverte er close to the e body. 2.4.3 Unpa cking Unpa ck the invert er as follows: • Plac ce the box in position, wit th the top cle early visible a nd according g to the arrow w markings o packaging.
  • Page 12 2.4.5 5.1. Mech hanical Di mensions H: 28.3 3 inches / 720 m W:13.9 9 inches / 353 m D: 6.2 i inches / 158 m Figur e 2.4: Mechanica al dimensions 2.4.5 5.2. Front t Covers The fr ront surface o of the inverte er consists of an upper and...
  • Page 13 WARN NING The inv erter is charg ged with high h voltages, an nd removal o f the lower co over may only be performed b by qualified p persons. 1. Tur rn OFF the AC C circuit brea aker and the D DC - switch.
  • Page 14 SAFET TY PRE ECAUT TIONS This c chapter conta ains instructio ons on how t to install, ope erate and ma intain the DL LX UL inverter series s safely. These e safety preca autions must t be read tho roughly and understood prior to...
  • Page 15 3.1.2 Opera ation The in nverter must only be oper rated in acco rdance with t the instructio ons in this Us ser Guide. NOTIC The DLX X UL series is a a grid interac ctive inverter and must be e used exclus ively for its designe...
  • Page 16 • The e inverter low wer cover mus st only be tak ken off by qua alified person ns during the e electrical inst tallation and maintenance e or repairs. • No unauthorized d modificatio ons may be m made to the in nverter.
  • Page 17 WARN NING The mo ounting surfac ce must be su uitable for th he weight (44 4-49 lbs/20-22 2 kg) and temper ature (194°F /90°C) of the inverter. • The e inverter mus st be mounte ed in a vertica al position.
  • Page 18 • The e inverter is su uitable for ou utdoor operat tion, but sho uld be shelte ered from dire ect sunlight, ow and rain, d dust and sand • Inve erter location n should be in n close proxim mity to the PV V arrays to m minimize DC lo...
  • Page 19 PV String 2x PV Str ring 3x P PV String verter Type Curre Fuses Fuses Fuses DLX 2.0 UL 9.5A DLX 2.9 UL 13.5 DLX 3.8 UL 18.0 DLX 4.4 UL 21.0 NOTIC Overcu rrent protect...
  • Page 20 Tripping nverter Type Max A C Current AC Fus Type Characteristic 208V 240V 208V 240V DLX 2.0 UL 10.0A 8.5A Double DLX 2.9 UL 14.0A 12.0A B or C Pole DLX 3.8 UL 18.5A 16.0A DLX 4.4 UL 21.5A...
  • Page 21 NSTA LLATI This c chapter descr ribes how to install the inv verter correct tly, both mec chanically an d electrically and d details import tant issues re elated to the i installation. T The informat tion is inten ded for quali fied persons s who follow...
  • Page 22 Assem mbling The b bracket consis sts of three p parts: A. Inv verter Bracket B. Sp pacer (Optiona C. Str ringbox bracke Figure 4 4.1: Wall bracket t components Assem mble the brac cket as follow igure 4.2: Assemb bling the wall bra acket 1.
  • Page 23 3. Ma ark the moun ting holes on n the mountin ng surface us sing a spirit le evel and the inverter acket as a tem mplate to ens sure that the bracket is co rrectly levele ed. Fasten the e inverter acket to the w wall with min...
  • Page 24 4.1.2 Invert Attac h the inverte er to the mou nting bracke et as follows: Figu ure 4.4: Fasten the e inverter to the bracket 1. Loc cate the hook ks for the car rier slots (A) o on the upper r back of the inverter and the locating...
  • Page 25  nsure that the e electrical in nstallation co omplies with t the local and d national ele ctrical egulations in force at the i nstallation si 4.3. Electric al Insta llation Corre ect electrical c connection is s critical for a chieving safe e, long-term a and reliable o...
  • Page 26 • Use e adequately sized conduc ctors with the e correct tem mperature rati ing and sunli ight resi stance. • Sec ure conducto ors so that th ey are kept a away from ob bjects that ca n damage th he insulation (e.g g.
  • Page 27 4.3.2 2.1. Cond duits The D DLX UL Stringb box is equipp ped with kno ock-outs to fit t the conduit fittings. • The e Stringbox co onnected to t the bottom o of the inverte er is made of non-conduct tive material d shipped wit...
  • Page 28 Figure 4.9: Size criteria for cond duits to fit the Stri ingbox knock ou Table 4 4.1: Recommende ed size for the co onduits mbol Size ” ” / 28.8 mm ” ” / 35.8 mm ” / 7.0 mm ”...
  • Page 29 • All m metallic con duit fittings shall also be e bonded to t the equipmen nt grounding g bar in the Stri ngbox (Figur re 4.6, pos. 8). • Foll ow the instru uctions and s specifications s from the dif fferent PV mo odule manufa acturers...
  • Page 30 The in ncoming PV c conductors s hall be termi nated at the 1.Unground ded Terminal l and 2.Gro ounded Term minal inside th he Stringbox F1, F2, F3: DC f fuse holders. F4: Ground fus se holder (GFD DI). .
  • Page 31 • The e positive gro ounded PV a array configu uration diffe ers from the n negative grou unded PV arra ay configurat ion by the co onnection to the DC termi inal blocks in n the inverter lower mpartment an nd in the Strin ngbox and th he DC switch...
  • Page 32 4.3.4 4.4. Posit tive Groun nded PV S String The in nverter is sh hipped with a a negative g grounded str ring configu uration, if not thing else is specif fied at the tim me of order. T The differenc ce between n negative and positive grou...
  • Page 33 4.3.4 4.5. Conn nection Pr ocedures • The e DC voltage o on the condu uctors connec cting the PV array to the i nput of the i nverter must ve a maximum m rating of 60 at any o operating tem mperature.
  • Page 34 • Test t the polarity y using a voltm meter before e turning ON the DC switc ch and the AC C circuit aker(s). 4.3.4 4.7. Jump per Positio on for Sys stem Grou unding Se The ju umper above e the - NEG te erminal block k in the invert...
  • Page 35 WARN NING To redu uce the risk k of fire, do n not connect t to an AC c circuit break ker panel having multi-wire branch circu uits connec cted. DANG Turn OF FF the AC circ cuit breaker(s s) and the DC C switch befo re connectin g the...
  • Page 36 • Whe en selecting A AC conducto ors, resistance e should be m minimized by y selecting a l arger size of nductors. • Foll ow the safety y instructions s and specific cations from the conduit m manufacture ers regarding inst tallation.
  • Page 37 Figure 4.1 16: Connections for single phase with neutral • Term minate the li ne 1 conduct tor at the ter minal labeled d L1 on the A AC terminal b block in the righ ht side of the inverter lowe er compartm ment.
  • Page 38 Singl e Phase with h no Neutral phase to phase only Figure 4.1 17: Connections f for Delta grid wit th no neutral • Term minate the li ne 1 conduct tor at the ter minal labeled d L1 on the A AC terminal b block in the righ...
  • Page 39 Delta a: Corner Gro ounded phase to phase only Figure 4.18: Con nnections for Del lta corner ground ded and Delta W • Term minate the li ne 1 conduct tor at the ter minal labeled d L1 on the A AC terminal b block in the righ...
  • Page 40 • Term minate the g rounded ph ase conduct or at the term minal labeled d L2/N on the e AC terminal bloc ck in the righ ht side of the inverter lowe er compartm ent. • Term minate the e quipment gr rounding co onductor at th...
  • Page 41 1. CA AN bus termin 3. Ether rnet port 2. RS S-485 terminal 4. Cable e gland • Eth ernet: Use C AT5e or bette er, with size 2 24 AWG / 0.2 1 mm and a maximum to otal length of 0 m.
  • Page 42 4.3.6 6.2. Jump per Positio on for Ter rmination Resistanc When n several inve erters are con nnected, the j jumper locate ed behind th he CAN / RS-4 485 terminals activa ates the term ination resist tance when t the pins are t erminated (s short-circuite...
  • Page 43 4.3.7 Check ks before e Start U  ounting: - Check that t the bracket and the inve erter are corre ectly mounte ed and secure  V wiring: - Check that t the PV cable es are rated fo or the PV cur rrent and for the expected...
  • Page 44 START T UP This c chapter provi des instructio ons to ensure e a safe start- - up of the DL LX UL inverte r series. The start- up of the inv erter require s the presenc ce of AC and DC voltages.
  • Page 45 2. RS- -485 • Con nnecting the inverters via the RS-485 b bus enables c communicatio on with certa ain 3 party uipment. In an n RS-485 netw work, the 3 party equipm ment will act as a master, w while all inve erters will bec...
  • Page 46 • To a activate the d display when the screen sa aver is active e (blank), pres ss any key. 5.1.2 2.2. LEDs There e are three LE EDs next to th he display scr reen. The upp per one is red d, the middle is yellow and the lo...
  • Page 47 1. Sta Left – – Cancel Right t – Ok Enter r – Confirm 2. Lan nguage Sele ection Defau ult – English Enter r – Call up the l list of languag Up or r Down – Navig gate through t the list to find th he preferred la...
  • Page 48 4. Tim HH.M MM (24 H) Enter r – Call up the d date Up – I Increase prese ent digit Down n – Decrease p present digit Left – – Select previo us digit Right t – Select next digit Enter r –...
  • Page 49 6. Set t as Master U Unit Defau ult – No Enter r – Call up the o options Up – Y Down n – No Enter r – Confirm Left – – Back Right t – Next Enter r – Confirm If the inverter is se et to master, d...
  • Page 50 Instal ller password d, which may only be obta ained for instal lers and grid operators by y contacting D Danfoss. • The se elected grid c configuration n must match h that on the actual instal lation site; other...
  • Page 51 9. Cu stomer Nam Enter r – Call up the k keyboard The ke eyboard enab bles typing a te ext entry. Left – – Back Right t – Next Enter r – Confirm In som me of the sub bmenus the s settings must t be typed us...
  • Page 52 10. Si Enter r – Call up the k keyboard The ke eyboard enab bles typing of a a site name. Left – – Back Right t – Next Enter r – Confirm 11. U nit Name Enter r – Call up the keyboard The u unit name help...
  • Page 53 13. O Owner Passw word Enter r – Call up the d digits Defau ult – 0003. Chang ge the passwo ord to 4 option nal digits NOTIC This p password is no ot transmitted to other invert ters on the CA N bus on GUI f firmware revisio...
  • Page 54 S etup>Genera l Setup>Passw word. If the e password is l lost or forgotte en, please con ntact Danfoss t to obtain a new w password. Insta aller Read d and write acc cess to all leve els and set valu ues.
  • Page 55 Singl e Inverter Values of PV (DC) and d feed-in (AC) current, voltage e and power a are shown num merically. The instant taneous outpu ut power is sho own as a bar graph. Figur e 6.1: Standard d display for a sing gle inverter PV Pl Plant...
  • Page 56 6.1.2 2.1. Uppe er Display y Area The le eft section s hows the sta tus of the inv verter. Refer t to Table 6.2 fo or the three d different status s options. It is s also a short cut to the Ac ctive Alarms.
  • Page 57 6.1.2 2.2. Lowe er Display y Area The lo ower section contains a sh hortcut to the e Main Menu and shows th he current da ate and time. Up or Down – Navig gate in the scre een. Enter –...
  • Page 58 6.1.3 3.2. Inver rter Status Invert ter Status disp plays the ope erating mode e, status and o operating pa rameters of t the inverter. The inverter ha s 8 different mo odes. Refer to Ta able 6.3 Mode Error The inverter ha s 3 different sta atus levels.
  • Page 59 6.1.4 4.1. Gene eral Setup Gener ral Setup disp plays some of f the general parameters o of the inverte er, which can all be chang ged using the e Owner pass sword. The preferred la anguage must b be set during in stallation: Engli sh [default], Lang...
  • Page 60 6.1.4 4.3. Inver rter Setup Invert ter Setup disp plays the vario ous data for t the specific in nverter set du uring the ma nufacturer proce ess, and is rea ad-only. Inverter model Mode Unique identifi er for each inve erter.
  • Page 61 Field Adjustable T rip Limits The sy ystem installe er may chang ge the grid se ettings accord ding to elect trical regulati ons. The Instal ller password is needed to o change thes se settings. 1. Vo ltage 208 V VAC Delta: N o Neutral, 12 20 WYE, Corn...
  • Page 62 Volta age time limits Minimum disco onnection time l limit Volta age time limits Maximum disco onnection time limit Lower disconne ection limit of th he grid frequenc cy on site Frequ uency limits m Upper disconne ection limit of th he grid frequen cy on site Frequ...
  • Page 63 6.1.5 Comm mands Comm mands give th he ability to d delete stored data in the in nverter logge er using the O Owner passw word. Up or D Down – Naviga ate through th he list Enter – – Select a subm menu/confirm Figur e 6.8: Submenus...
  • Page 64 Up or D Down – Naviga ate through th he list Enter – – Select a subm menu/confirm Figur e 6.9: Submenus to Alarm Setup 6.1.6 6.1. Notif fication Se etup In No tification Setu up parameter rs needed for r the inverter r to send noti fications abo...
  • Page 65 The portal s setup is comp patible with D Danfoss CLX portal Setup. FTP server IP ad ddress. Only num mbers are allow wed! FTP S Server IP...
  • Page 66 6.1.7 Event t Log Event t Log displays information about the in nverter’s logg ged events. Th he events are e listed with the m most recent ev vent first. Up or D Down – Read t the different va alues Left –...
  • Page 67 Inverter’s total energy product tion [kWh] Energ Earni ings Cash value of th he feed-in energ gy in currency/k avoided Avoided CO missions [kg/kW Wh] compared to o fossil fuel Inverter’s larges st instantaneou us amount of po ower production n [W] Peak k Power...
  • Page 68 6.2.1 1.1. IP Ad ddress The c omputer and d the inverter r IP address m must be in the e same range e. If the invert ter IP address is 192 2.168.10.X, the e computer IP P address mu ust be 192.168 8.10.Y, where e X and Y are...
  • Page 69 1. Follo ower inverter 2. Mas ster inverter 3. CAN N bus cable 4. Ethe ernet cable 5. Rou ter/Switch 6. Wor rld Wide Web 7. Com mputer 8. RS-4 485 cable 9. Data a logger Figure 6.1 13: Connection w with network and d World Wide We To co...
  • Page 70 e external IP address of th he router can be found at http://www.w whatismyip.co om or similar eb services, or r by asking th he relevant In nternet Servic ce Provider (I SP). NOTIC If the ex xternal netwo ork is assigne ed a dynamic IP address fro om the ISP, t...
  • Page 71 6.3.1 Home The H Home screen i is the standa rd display, w hich is alway ys shown whe en opening th he web serve Figure 6.14: St tandard display • Sys stem status s shows the sta atus and oper rating mode of the invert er or the PV p...
  • Page 72 6.3.2 Statis stics Statis tics gives a g raphical over rview over th he energy pro oduction from m the current t week and the la ast 12 months Figure 6.1 5: Statistics • PV plant: More detailed info ormation for s specific invert ters in a plan nt can be foun...
  • Page 73 6.3.3 Setup Setup p shows the d different settin ngs and infor rmation of ev very inverter in the PV pla ant. Figure 6. .16: Setup • Pla nt Informati ion shows im mportant char racteristics of f every invert ter in the PV p plant.
  • Page 74 installer rela ted values su uch as netwo rk settings an nd user accou unts. Access level 3: Read and w write access to all levels a and set value 3. Admin: 6.3.4 Event t Log Event t Log shows in nformation a bout events t that the inve...
  • Page 75 6.3.5 Statu Status s displays any y warnings an nd alarms in the plant, an nd gives an ov verview of th e plant’s techn nical characte eristics and en nergy yield. Figure 6. 18: Status • Ala rms tab iden ntifies any spe ecific warning g or alarm in...
  • Page 76 TROUB BLESH HOOTI This c chapter conta ains useful in formation if t the inverter m malfunctions s during oper ration. Start b check king the insta allation is carr ried out corre ectly, and the e display info ormation, and d then check the in nformation in...
  • Page 77 Table 7 7.1: Description o of messages appe earing in the disp play during inver rter failure Disp play Message Description Action - Contact PV module fai ilure Pane el fault (W/A – E01) the supplier* - Turn on Inpu t circuit break er open (A DC switch is o...
  • Page 78 Disp play Message Description Action - Failure o Failu ure on AC side (W/A – Inverter failur e on the AC on the AC side . Other W/A side are also shown E11) - If the inv verter is in Shu utdown, turn off the A AC side and the...
  • Page 79 Disp play Message Description Action - If the inv Micro oprocessor fau ult (W/A – verter is in Shu utdown, turn off the A AC side and the en the DC E20) side. Wa ait for 30 secon nds, then turn on the A AC side and the en the DC side...
  • Page 80 Disp play Message Description Action - Contact Grid fault, still runn ning (W – Fault ride-thro ough the supplier* E28) - Contact The varistors o on the DC side fault DC side ( (W – E29) the supplier fo or new parts are damaged.
  • Page 81 MAINT TENAN This c chapter expla ains how to sw witch OFF an nd discharge t the inverter s safely. It also provides an overv view of impor rtant regular maintenance e procedures s to ensure tro ouble-free op peration of the D DLX UL inverte ers.
  • Page 82 8.2.1 Modu ules Maint tain the PV m modules as rec commended from the ma anufacturer. 8.2.2 Cable Regu larly check al l cables insid de and outsid e for signs of f thermal and d mechanical l damage. Repla ace frayed con nductors imm mediately!
  • Page 83 • Rem move the inve erter’s lower c cover (Refer t to 2.4.5. Inver rter Enclosure • Che eck that the te erminals are voltage free. • Alw ways check th e cause of th e defective fu use prior to r eplacement.
  • Page 84 • Vac cuum cleaner • Soft ft brush • Com mpressed air Figure e 8.2: Heatsink cl leaning 8.2.9 The fa an circulates the air inside e the inverter r, which distri ibutes heat a and thereby m maintains the conve ersion capaci ty.
  • Page 85 Repla acement requ uires removal l of the invert ter lower cov ver and the us se of the VDR R service tool and m must be perf formed by qu ualified pers sons only! 8.2.1 10.1. DC S Side •...
  • Page 86 • Use e the service t tool delivered d in the pack aging with th he new varist tors ordered f from Danfoss e service tool is designed a as a fork, and can open up p all terminal clamps simu ultaneously.
  • Page 87 Figure 8.7: Ser rvice tool to open n the varistor ter rminal clamps • Ope en the termin nal clamps an nd remove th e damaged v varistor(s). • Com mply with Fig gure 8.4 and F Figure 8.5 to g et the positio on of the vari istors right.
  • Page 88 Figur e 8.8: Dismounti ng of the inverte 8.3.2 Repla acement • Slid de the new in verter carefu lly onto the m mounting bra acket (1 – 2 b below). Refer to 4.1.2 Inve erter. • Che eck that the c connection ho oles on the in nverter (E, F a...
  • Page 89 Danfoss is c committed to o its policy of f environmen ntal respo onsibility and therefore ap ppeals to end...
  • Page 90 If any y questions, p please contac ct your invert ter supplier o or the Danfoss s office in you territo ory. 9.1. Warran ty Servi The st tandard warr ranty applies for 10 years.
  • Page 91 TECHN NICAL DATA 10.1. Inverter r datash heet Paramet DLX 2 2.0 UL X 2.9 UL DLX 3.8 UL DLX 4.4 UL Rated app parent power 000 VA 2900 VA 3800 VA 4400 VA Rated act ive power 000 W 2900 W 3800 W 4400 W...
  • Page 92 Integral D DC switch PV ground ding Field configurable e for ungrounded d, positive & negat tive grounded Topology High fre equency transform mer, galvanic isola ation Performa nce monitoring Graph hical colour displa ay with 6 touch se nse buttons, 3x LE EDs for visual stat indication, Build- in Web Server...
  • Page 93 10.2. Field Ad djustab le Trip L Levels Table 1 10.1: 208Vac Trip p Details VALUE DEFAUL LT SETTING MIN. LEVE X. LEVEL ACCURACY Vac Over voltage 47.1 V 208.0 V 47.1 V ±2.5V high trip level Vac Over voltage 20 ms 50 ms 20 ms...
  • Page 94 ACCESSORIES FOR USE IN INDEPENDENT POWER representative samples of SYSTEMS DLX 2.0 UL, DLX 2.9 UL, DLX 3.8 UL, DLX 4.4 UL Have been investigated by UL in accordance with the Standard(s) indicated on this Certificate. UL 1741, Inverters, Converters, Controllers and...
  • Page 95 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.

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