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SMA Solar Technology Sunny Mini Central SMC 5000A manual

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Table of contents for the manual

  • Page 1

    Sunny Mini Central SMC 5000A / 6000A Inverter for three-phase grid feeding PV plants Installation Guide Version 2.0 SMC50A_6 0A-IEN073320 IME-SMC50A_60A[...]

  • Page 2

    [...]

  • Page 3

    SMA Te c h n o l o g i e AG Content Installation Gu ide SMC50A_60A-IEN073320 Page 3 Content 1 Notes on this Manual . . . . . . . . . . . . . . . . . . . . . . 7 1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3 Explanation of the Symbols [...]

  • Page 4

    Content SMA Te c h n o l o g i e AG Page 4 SMC50A_60A-IEN073320 Installation Guid e 6.4.2 Connecting th e AC Output . . . . . . . . . . . . . . . . . . . . . . . . . . .41 6.4.3 The Line C ircuit Brea ker . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 7 The Communication Interface . . . . . . . . . . . . . . . 48 7.1 Connecting RS232, [...]

  • Page 5

    SMA Te c h n o l o g i e AG Content Installation Gu ide SMC50A_60A-IEN073320 Page 5 13 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . 73 13.1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 13.2 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 13.3 Storage . . . . . . . . . . . . . .[...]

  • Page 6

    Content SMA Te c h n o l o g i e AG Page 6 SMC50A_60A-IEN073320 Installation Guid e[...]

  • Page 7

    SMA Te c h n o l o g i e AG Notes on this Manual Installation Gu ide SMC50A_60A-IEN073320 Page 7 1 Notes on this Manual 1.1 Validity This installation guide covers the correct in stallation and commissi oning of type Sunny Mini Central SMC 5000A and SMC 6000A SMA inverters . 1.2 Target Group Only trained electricians approved by the responsible ene[...]

  • Page 8

    The Sunny Mini Central SMA Te c h n o l o g i e A G Page 8 SMC50A_60A-IEN073320 Installation Guid e 2 The Sunny Mini Central 2.1 Appropriate Us age The Sunny Mi ni Central is a photov oltaic inve rter and serves to feed solar energy from solar modules converted using photovoltaic s into a low voltage grid with a nominal voltage of 220 to 240 V and [...]

  • Page 9

    SMA Te c h n o l o g i e AG Safety Instruc tions Installation Gu ide SMC50A_60A-IEN073320 Page 9 3 Safety Instructions 3.1 Handlin g of the Sunny Mini Central All work on and in the Sunny Mini Central must be carried out by a qualified elec trician. Th e electrician must be approved by the local energy supplier. Open and close the Sunny Mini Cen tr[...]

  • Page 10

    Safety Ins truction s SMA Te c h n o l o g i e A G Page 10 SMC50A_60A-IEN073320 Installation Guid e General safety rules for work ing on photovoltaic systems: Follow the instruct ions in the picto grams, signs and labels on each inverter and ensure that they are legible at all times. 1. Disconnecti ng the device Before you start to work on the unit[...]

  • Page 11

    SMA Te c h n o l o g i e AG Safety Instruc tions Installation Gu ide SMC50A_60A-IEN073320 Page 11 3.2 Installer's Responsibilities This installation guide, th e operating manual and the do cumentation of installed components must be kept in th e immediate vicinity of the in verter and must be available to installation, operation, maintena nce [...]

  • Page 12

    Overview of the De vice SMA Te c h n o l o g i e A G Page 12 SMC50A_60A-IEN073320 Installation Guid e 4 Overview of the Device 4.1 Identification You can identify the Sunny M ini Central wi th the aid of the na me plate ( see figur e below). The name plate is fo und on the right-hand side of the housing (when viewed from the front). It contains inf[...]

  • Page 13

    SMA Te c h n o l o g i e AG Overview of the Device Installation Gu ide SMC50A_60A-IEN073320 Page 13 4.2 Dimension s 242 mm 613 mm 468 mm[...]

  • Page 14

    Overview of the De vice SMA Te c h n o l o g i e A G Page 14 SMC50A_60A-IEN073320 Installation Guid e Wall bracket and rear panel 8,5 2,6 2,6 7, 8 11 , 0 2,2 8,6 7, 6 43,3 2,0 1, 2 1, 0 1, 2 2,0 2,2 7, 0 48,7 0,2 1, 2 5,8 2,5 1, 2 5,8 2,5 0,9 (4 x) Specifications in cm Holes for option al single-use screws as anti-t heft protection Holes for wall b[...]

  • Page 15

    SMA Te c h n o l o g i e AG Overview of the Device Installation Gu ide SMC50A_60A-IEN073320 Page 15 4.3 Electronic S olar Switch (ESS) The Sunny Mini Central is equip ped with the integrated electron ic DC load- disconnecting switch ESS. This reliably prevents the arcing that usually occurs when disconnecting the in verter from the P V gene rator, [...]

  • Page 16

    Overview of the De vice SMA Te c h n o l o g i e A G Page 16 SMC50A_60A-IEN073320 Installation Guid e 4.4 Interior View The following diagram gives a schematic ov erview of the various components a nd connection points i nside the Sun ny Mini Central SMC 5000A an d SMC 6000A w ith the cover removed: A C B D E F G H M K I L J[...]

  • Page 17

    SMA Te c h n o l o g i e AG Overview of the Device Installation Gu ide SMC50A_60A-IEN073320 Page 17 A Varistors (Page 65) B Connection te rminals for communicati on (Page 48) C Socket for communication Piggy-Bac k (RS232, RS485, radio) (Page 48) D Jumper for commun ication (Page 48) E Sunny Display (Page 54) F Jumper for fan testing (Page 69) G Ope[...]

  • Page 18

    Installation SMA Te c h n o l o g i e A G Page 18 SMC50A_60A-IEN073320 Installation Guid e 5 Installation 5.1 Selecting an In stallation Location No. Checkpoint Control Location 1 The installation location and method of installat ion is suitable for the weight of approximately 63 kg and the dimensions of 468 mm x 613 mm x 24 2 mm (width x height x [...]

  • Page 19

    SMA Te c h n o l o g i e AG Installation Installation Gu ide SMC50A_60A-IEN073320 Page 19 3 If several Sunny Mini Central un its are insta lled in areas where high ambient temperatures are to be expected , the individual Sunny Mini Central units must be far enough apart to ensure that the individual Sunny Mini Central units do not intake the coolin[...]

  • Page 20

    Installation SMA Te c h n o l o g i e A G Page 20 SMC50A_60A-IEN073320 Installation Guid e Position 11 The Sunny Mini Central i s mounted ve rtically on a wall, or if it is absolutely necessary, tilted back to an angle of max. 45°. 12 The Sunny Mini Central is installed so that it is not slanting forward. 13 The Sunny Mini Ce ntral is not installe[...]

  • Page 21

    SMA Te c h n o l o g i e AG Installation Installation Gu ide SMC50A_60A-IEN073320 Page 21 5.2 Required Tools and Materials Numbe r Tool/material Purpose 1 drill with a suitable drill bit dri lling the holes fo r the wall bracket 2 - 4 wall anchors with a diameter of 10 mm (for attachme nt to a concrete or stone wall, for example) insertion in the h[...]

  • Page 22

    Installation SMA Te c h n o l o g i e A G Page 22 SMC50A_60A-IEN073320 Installation Guid e 5.3 Mounting th e Sunny Mini Central Only use the provided wall bracket for installation! When mounting the device, be sure to take int o accoun t the weight of the Sunny Mini Central of 63 kg! Step Instru ction Mounting the Wall Bracket 1 For mounting the wa[...]

  • Page 23

    SMA Te c h n o l o g i e AG Installation Installation Gu ide SMC50A_60A-IEN073320 Page 23 Mounting the Sunny Mini Central 4 When transporting and installing the Sunny Mini Central, use the ergon omic handles at the top and bottom at the sides of the Sunny Mini Centra l (A), or the housing opening, for example by inserting a steel bar (B) (diameter [...]

  • Page 24

    Installation SMA Te c h n o l o g i e A G Page 24 SMC50A_60A-IEN073320 Installation Guid e 8 Close the recessed grips with the handle covers provided in the accessor ies kit. They are required to adequa tely prevent insects entering the unit! If required, new handle covers can be ordered from SMA (contact: see Page 92). Optional Anti-theft Protec t[...]

  • Page 25

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 25 6 Electrical Connection 6.1 Required Tools and Materials Numbe r Tool/material Purpose 2-8 PV plug connectors for the connecting cables of the solar modules for connection to the Sunny Mini Central 1 multimeter with DC input voltage range up to at le[...]

  • Page 26

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 26 SMC50A_60A-IEN073320 Installation Guid e 6.2 Connection Procedure The following figure shows the as signment of the individual housing ducts on the base of the Sunny Mini Ce ntral. When connecting the unit to the po wer supply, do not deviate from the sequence described here! A Plug connec[...]

  • Page 27

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 27 6.3 Connectio n of the DC Input 6.3.1 Requirements For connecting the DC input, the following requirements m ust be satisfied: 1. The connected strings must consi st of mo dules of the same t ype and number an d should have an identical orientation a[...]

  • Page 28

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 28 SMC50A_60A-IEN073320 Installation Guid e 6.3.2 Connectio n of PV Strings To connect up the PV strings, fo llow these steps: NOTICE! The AC side of the Sunny Mini Central must be disc onnected from the grid befo re you connect the PV strin gs to the S unny Mini Central ! Step Instruction 1 [...]

  • Page 29

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 29 6 Connect up the faul tless PV generator strings as indicated on the right. 7 Close the unused DC input sockets with the caps included in the delivery. 8 Reinsert the handle of the Electroni c Solar Switch in the socket o n the underside of the Sunny[...]

  • Page 30

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 30 SMC50A_60A-IEN073320 Installation Guid e 6.3.3 Reverse Current Advice on Generator Configuratio n for PV Systems Using the Sunny Mini Central In contrast to the Sunny Boy string inve rters, three and more strings are usually connected in parallel in the PV generator of a system using the S[...]

  • Page 31

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 31 Despite the fact that these faults are very unlikely, and extremely rare in practice, preventative measures must sti ll be taken. After all, these types of faults carry a high potential for damage and dan ger, sinc e all modules in the affected strin[...]

  • Page 32

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 32 SMC50A_60A-IEN073320 Installation Guid e How Can Reverse Current in the Modules be Prevented? First we must explain that by pass diodes which are the cu rrent state-of -the-art in mod ule construction do not influence the reverse cu rrent in the module, but only reduce the effect of any sh[...]

  • Page 33

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 33 Design Notes Check the followin g points below: Step Test 1 Do all the stri ngs have the same nu mber of series-connected modules ? 2 How high is the maximum reverse current in a defective string at nominal conditions? Example: generator with 4 strin[...]

  • Page 34

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 34 SMC50A_60A-IEN073320 Installation Guid e 6.4 Connecting the AC Output 6.4.1 Requirements For connecting the AC output , the follo wing requirements must be satisfied: 1. Connection Requi rements When connectin g an inverter to the public grid , follow the connec tion requirem ents of the l[...]

  • Page 35

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 35 2. Grid Impedance Due to a high grid impedance, a high line resistance or a hig h voltage at the feed- in point, a high AC voltag e may result at the connection point of the Sunny Mini Central. In Germany, the 10-minute averag e of the output voltage[...]

  • Page 36

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 36 SMC50A_60A-IEN073320 Installation Guid e The diagram shows the respective curves for a grid voltage without mains supply. A maximum possible feed-in power per phase (X axis) is obtained for the respective curves de pending on the grid impedance (Y axis). The power read on the X axis is app[...]

  • Page 37

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 37 3. Cable Connection The connecti on terminals in the Sunny Mi ni Central are suitable for wire cross-sections of up to 25 mm². The external diameter of the cable must therefore be between 11 mm and 25 mm. If you use a cable with a cross-section smal[...]

  • Page 38

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 38 SMC50A_60A-IEN073320 Installation Guid e Output los ses of the Sunn y Mini Central SMC 5000A The following maximum cable lengths are possible for the diff erent cable cross- sections: Cable cross-se ction 4 .0 mm² 6.0 mm² 10.0 mm² 16.0 mm² 25.0 mm² Max. cab le length 12.4 m 18.6 m 31.[...]

  • Page 39

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 39 Output los ses of the Sunn y Mini Central SMC 6000A The following maximum cable lengths are possible for the diff erent cable cross- sections: Cable cross-se ction 4 .0 mm² 6.0 mm² 10.0 mm² 16.0 mm² 25.0 mm² Max. cab le length 10.3 m 15.5 m 25.9[...]

  • Page 40

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 40 SMC50A_60A-IEN073320 Installation Guid e 6. Line Circuit Breaker The selection of the correct line circuit breaker dep ends on various factors. For detailed information for the rat ing of a line circuit breake r, please refer to section 6.4.3 "The Line Circuit Breaker" (Page 44).[...]

  • Page 41

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 41 6.4.2 Connectin g the AC Output To connect up the AC output, follo w these steps: Ste p Instruction 1 Check the grid voltage! For Germany, the following applies: If the grid voltage is constantly hig her than 253 V, the Sunny Mini Cent ral will not b[...]

  • Page 42

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 42 SMC50A_60A-IEN073320 Installation Guid e 5 Connect the prot ective earth (PE) of the mains cable to the right terminal of the terminal block (see fi gure to the right). To do this, the PE wire must be 5 mm longer than the L and N wires! PE conductor co nnection If a second protective earth[...]

  • Page 43

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 43 7 Secure the housing cover by evenly tighteni ng the two middle screws f irst. Then tighten the four re maining screws as well an d do not forget to also reattach the washers. Th e toothing of the washer s must face toward the housing cover. The scre[...]

  • Page 44

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 44 SMC50A_60A-IEN073320 Installation Guid e 6.4.3 The Line Circui t Breaker Factors that Determine the Selection Various factors should be taken into account when selecting line circuit breakers. These include, for example: • The type of cable used (conductor material and insulation) • Am[...]

  • Page 45

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 45 Rating of the Circuit Breakers We assume a PV system w ith 9 Sun ny Mini Central inverters with three inverters per phase. Required techni cal data of the Sunn y Mini Central SMC 5000A / SMC 6000A • Maximum output current = 26 A / 26 A • Maximum [...]

  • Page 46

    Electrical Connecti on SMA Te c h n o l o g i e A G Page 46 SMC50A_60A-IEN073320 Installation Guid e When selecting lin e circuit breaker s, a numb er of load f actors need to be take n into account. These can be found in the respective manufacturer's data sheets. For example, one manufacturer's circuit breaker may be designed for an ambi[...]

  • Page 47

    SMA Te c h n o l o g i e AG Electric al Connection Installation Gu ide SMC50A_60A-IEN073320 Page 47 As well as the thermal rating of the circ uit breakers, the applicable DIN VDE standards must also be taken into account. The main ones that apply here are: • DIN VDE 0100, part 410 • DIN VDE 0100, part 430 • DIN VDE 0298, part 4 In special app[...]

  • Page 48

    The Communication Interface SMA Te c h n o l o g i e A G Page 48 SMC50A_60A-IEN073320 Installation Guid e 7 The Communication Interface The communication i nterface is used t o co mmunicate with SMA communication devices (e.g. S unny Boy Control, Sunny WebBox ) or a PC with appropr iate software (e.g. Sunny Data Control). Depending on the s elected[...]

  • Page 49

    SMA Te c h n o l o g i e AG The Communication Interface Installation Gu ide SMC50A_60A-IEN073320 Page 49 7.1 Connecting RS232, RS485, Sunny Beam Electrostatic discharges are an acute danger to the Sun ny Mini Central and to the communications interface. Groun d yourself by touching PE or a non -coated part of the housing before removing the commu n[...]

  • Page 50

    The Communication Interface SMA Te c h n o l o g i e A G Page 50 SMC50A_60A-IEN073320 Installation Guid e 7.1.1 Jumper Function s A Housing feed-through s in the base of the Sunny Mini Central B Cable route (gray surface) C PE connector D Screw terminals for connection of the communication wires E Jumper slots F Interface port Jumper A Jumper B Jum[...]

  • Page 51

    SMA Te c h n o l o g i e AG Commissioning the Sunny Mini Central Installation Gu ide SMC50A_60A-IEN073320 Page 51 8 Commissioning the Sunny Mini Central Proceed with commiss ioning the Sunny Mini Central only after: • the housing cover is securely screwed shut, • the DC cables (PV strings) are fully c onnected and the unused D C p l u g c o n n[...]

  • Page 52

    Commissioning t he Sunny Mini Central SMA Te c h n o l o g i e A G Page 52 SMC50A_60A-IEN073320 Installation Guid e 8.1 Display After a normal grid connection of the S unny Mini Central, it takes approximately one minute until the following di splay messages are shown altern at ely. For this, t he DC and AC connections must be wired correctly an d [...]

  • Page 53

    SMA Te c h n o l o g i e AG Commissioning the Sunny Mini Central Installation Gu ide SMC50A_60A-IEN073320 Page 53 In case of failures In case of a failure, th e message "Disturbance" will be indicated in the status bar. The exact error message follows. For example, if the "D isturbance" message shown here is displayed immedi ate[...]

  • Page 54

    Commissioning t he Sunny Mini Central SMA Te c h n o l o g i e A G Page 54 SMC50A_60A-IEN073320 Installation Guid e 8.1.1 Setting the Langua ge of the Sunny Displ ay You can set the language of the Sunny Display using the switche s on the underside of the display assemblies inside the Sunn y Mini Central. Pr oceed as follows : 1. Open the Sunny Min[...]

  • Page 55

    SMA Te c h n o l o g i e AG Commissioning the Sunny Mini Central Installation Gu ide SMC50A_60A-IEN073320 Page 55 8.2 LEDs After a normal grid connection of the S unny Mini Central, it takes approximately one minute until the following blink code is displayed. For this, the DC an d AC inputs must be correctly connected and the circuit break er must[...]

  • Page 56

    Commissioning t he Sunny Mini Central SMA Te c h n o l o g i e A G Page 56 SMC50A_60A-IEN073320 Installation Guid e Working Mode In Case of Failu res In case the Sunny Mini Central detects an error, this is indicated through a blink code of the yellow and red LEDs. For example, if the yellow LED glows for 5 seconds immediately after connection, the[...]

  • Page 57

    SMA Te c h n o l o g i e AG Hand-over to the Operator Installation Gu ide SMC50A_60A-IEN073320 Page 57 9 Hand-over to the Operator After installi ng the Sunny Mini Central su cc essfully, hand the system over to the operator. To do so, please use the following c heck list. No. Checkpoint Control What the oper ator should kno w: 1 operating principl[...]

  • Page 58

    Opening and Closing the Sunny Mini Central SMA Te c h n o l o g i e A G Page 58 SMC50A_60A-IEN073320 Installation Guid e 10 Opening and Closing the Sunny Mini Central 10.1 Safety Instructions Follow all safety i nstructions de scribed in sec tion 3 "Safety Instructions " (Page 9). High voltages are present in the device! Inappropriate ope[...]

  • Page 59

    SMA Te c h n o l o g i e AG Opening and Closing the S unny Mini Central Installation Gu ide SMC50A_60A-IEN073320 Page 59 10.2 Opening of the Sunny Mini Central Follow the sequence de scribed below and all safety inst ructions in sectio n 10.1 "Safety Instructions" (Page 58)! Step Instruction 1 Switch the line circui t br eaker to it s &qu[...]

  • Page 60

    Opening and Closing the Sunny Mini Central SMA Te c h n o l o g i e A G Page 60 SMC50A_60A-IEN073320 Installation Guid e 10.3 Closing of the Sunny Mini Central Follow the sequence de scribed below and all safety inst ructions in sectio n 10.1 "Safety Instructions" (Page 58)! Step Instruction 1 Secure the housing cover by evenly tightening[...]

  • Page 61

    SMA Te c h n o l o g i e AG Opening and Closing the S unny Mini Central Installation Gu ide SMC50A_60A-IEN073320 Page 61 4 Reinsert the handle of the Electr onic Solar Switch in the s ocket on the un derside of the Sunny Mini Central. The Electronic Solar Switch can be d amaged if it has not been attached properly. The handle must be firmly attache[...]

  • Page 62

    T roubleshoot ing / Problem So lving SMA Te c h n o l o g i e A G Page 62 SMC50A_60A-IEN073320 Installation Guid e 11 Troubleshooting / Problem Solving The Sunny Mini Central is a complex high-technology devi ce. As a result, the possibilities for fixing fault s on site are limited to just a few items. Should the Sunny Mini Central display other bl[...]

  • Page 63

    SMA Te c h n o l o g i e AG T roubleshooti ng / Problem Solving Installation Gu ide SMC50A_60A-IEN073320 Page 63 11.2 The red LED is Continuously on 11.2.1 Ground Fault Testing If the red LED on the Sunny Mini Central is continuously illumin ated, it should be checked whether there is a groun d faul t in the PV generat or. Follow the safety inst ru[...]

  • Page 64

    T roubleshoot ing / Problem So lving SMA Te c h n o l o g i e A G Page 64 SMC50A_60A-IEN073320 Installation Guid e 3 Repeat points 3 and 4 for each string. Event Measure You have found a ground fault . Restart the Sunny Mini Central as described from step 7 onwards, but without reconnecting the faulty string. The PV generator's installation en[...]

  • Page 65

    SMA Te c h n o l o g i e AG T roubleshooti ng / Problem Solving Installation Gu ide SMC50A_60A-IEN073320 Page 65 11.2.2 Checking the Varistors Varistors are wearing parts. Th eir functioning diminishes wi th age or following repeated responses as a result of overvoltages. It is therefore possible that one of the thermally monitored varistors has lo[...]

  • Page 66

    T roubleshoot ing / Problem So lving SMA Te c h n o l o g i e A G Page 66 SMC50A_60A-IEN073320 Installation Guid e 3 Replace the varistor concerned with a new one as shown in the illustrati on to the right. Ensure the varistor is installed the right way round! If you do not receive a special tool for operating the terminal clamps together with your[...]

  • Page 67

    SMA Te c h n o l o g i e AG Maintenance and Cleaning Installation Gu ide SMC50A_60A-IEN073320 Page 67 12 Maintenance and Cleaning The Sunny Mini Central has be en constructed so that mainten ance is kept to a minimum. To guarantee safe operation, it is usually ad equate to observe the following p rinciples: • Check the Sunny Mini Central visua ll[...]

  • Page 68

    Maintenance and Cleani ng SMA Te c h n o l o g i e A G Page 68 SMC50A_60A-IEN073320 Installation Guid e Step Instruction 1 Disconnect the Sunny Mini Cent ral from both the DC and AC connections, paying attention to the safety instructio ns in section 3 "Safety Instructions" (Page 9). 2 Wait for the fans to stop ro tating. 3 Push the two l[...]

  • Page 69

    SMA Te c h n o l o g i e AG Maintenance and Cleaning Installation Gu ide SMC50A_60A-IEN073320 Page 69 12.1.2 Chec king the Fans If necessary, there are tw o different ways to check the fans are functional: • Set the "Fan Test" parameter to "1" in the in staller mode (using Sunny Data, Sunny Data Control, the Sunny Boy Control [...]

  • Page 70

    Maintenance and Cleani ng SMA Te c h n o l o g i e A G Page 70 SMC50A_60A-IEN073320 Installation Guid e Setting the Jumper 1 Open the Sunny Mini Ce ntral as descri bed in section 10.2 "Opening of the Sunny Mini Central" (Page 59). 2 Place the jumper o n the controller board socket, as laid out below. 3 Close the Sunny Mini Central as desc[...]

  • Page 71

    SMA Te c h n o l o g i e AG Maintenance and Cleaning Installation Gu ide SMC50A_60A-IEN073320 Page 71 12.1.3 Cleaning the Handle Covers There are handle cov ers on either side of the Sunny Min i Central. The Sunny M ini Central sucks air in from underneath via the fan and blows it out again on the upper sides. For optimum heat diss ipation within t[...]

  • Page 72

    Maintenance and Cleani ng SMA Te c h n o l o g i e A G Page 72 SMC50A_60A-IEN073320 Installation Guid e 12.2 Inspection of the Electronic Solar Switch Check the Electr onic Solar Switch for wear before you attach it. To do this, check the met al tongues on the in side of the plug for brown discoloration. If one of th e metal to ngues is co mplete l[...]

  • Page 73

    SMA Te c h n o l o g i e AG Decommissio ning Installation Gu ide SMC50A_60A-IEN073320 Page 73 13 Decommissioning 13.1 Disassembly You must follow the sequence descri bed below and all sa fety instructions in secti ons 3 and 10. 1! Step Instruction 1 Open the S unny Mini Ce ntra l as described in secti on 10.2 "Opening of the Sunny Mini Central[...]

  • Page 74

    Decommissioning SMA Te c h n o l o g i e A G Page 74 SMC50A_60A-IEN073320 Installation Guid e 13.2 Packaging If possible, please pack the Su nny Mini Central in the origin al packaging. If this is no longer available, a similar box can be us ed which can withstand the weight of the Sunny Mini Central (63 kg), has a handle system and can be closed f[...]

  • Page 75

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 75 14 Technical Data 14.1 Sunny Mini Central SMC 5000A Description Shor t descr . Setting PV Generato r Connection Data Max. input open circuit voltage U PV 0 600 V (based on -10 °C cell temperature) Input voltage, MPP range U PV 213 V - 600 V @ UACm[...]

  • Page 76

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 76 SMC50A_60A-IEN073320 Installation Guid e Grid Connection Data Nominal output power P ACnom 5000 W Peak output power P AC, max 5500 W Nominal output current I ACnom 21.7 A Max. output current I AC, max 26 A Harmonic distortion of output current (at KUgrid < 2 %, PAC > 0.5 PACnom) K [...]

  • Page 77

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 77 Efficiency Curve of the SMC 5000A The efficiency of the Sunn y Mini Central de pends mainly on the input voltage of the connected PV strings. The lower the in put voltage, the higher the efficiency. Efficiency Max. efficiency η max 9 6,1 % CEC reb[...]

  • Page 78

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 78 SMC50A_60A-IEN073320 Installation Guid e 14.2 Sunny Mini Central SMC 6000A Description Short descr. Setting PV Generato r Connection Data Max. input open circuit voltage U PV 0 600 V (based on -10 °C cell temperature) Input voltage, MPP range U PV 213 V - 600 V @ UACmin (246 V - 600 V D[...]

  • Page 79

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 79 Grid Connection Data Nominal output power P ACnom 6000 W Peak output power P AC, max 6000 W Nominal output current I ACnom 26 A Max. output current I AC, max 26 A Harmonic distortion of output current (at KUgrid < 2 %, PAC > 0.5 PACnom) K IAC[...]

  • Page 80

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 80 SMC50A_60A-IEN073320 Installation Guid e Efficiency of the SMC 6000A The efficiency of the Sunn y Mini Central de pends mainly on the input voltage of the connected PV strings. The lower the in put voltage, the higher the efficiency. Efficiency Max. efficiency max 96.1 % CEC rebate effic[...]

  • Page 81

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 81 14.3 General Data General Data Protection rating in accordance with DIN EN 60529 IP65 Climatic conditions (DIN EN 50178:199 8-04): Location of type C: class 4K4H Extended temperature range: -25 °C to +60 °C Extended humidity range: 0 - 100 % Exte[...]

  • Page 82

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 82 SMC50A_60A-IEN073320 Installation Guid e 14.4 Sunny Mini Central Operating Parameters 14.4.1 Explanation of the Operating Parameters Unauthorized changes to the oper ating paramete rs may result in: • injury or accidents as a result of changing the internal safety specifications of the[...]

  • Page 83

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 83 Control Current regulation switching. If the operating parameter "Control" is set to "Auto", the invert er automa tically chooses the o ptimal type of current regulation. If the operating parameter "Control" is set to [...]

  • Page 84

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 84 SMC50A_60A-IEN073320 Installation Guid e Fac-Pderating Frequency-depen dent output limitatio n. Fac-Start delta For setti ng the frequency-de pendent output derati ng in the operating mode "Off Grid". Further informat io n on this topic ca n be found in the Sunny Island operati[...]

  • Page 85

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 85 Ripple-Ctl-Frq The Ripple-Ctl-Frq, Ripple-Ctl-Lev, Ripple- Ctl-Rcvr parameters are intended to handle ripple control signals fr om the Sunny Mini Centrals. These parameters are no t available for all Sunny Mini Centrals. These parameters may only b[...]

  • Page 86

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 86 SMC50A_60A-IEN073320 Installation Guid e Usoll-Konst PV desired vo ltage for constant oper ational voltage. These parameters are only important wh en the "Betriebsart" parameter is set to U-konst. Name Explana tion[...]

  • Page 87

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 87 14.4.2 Parameter Se ttings fo r Germany Grayed out parameters are only displayed in installer mode. The ta ble below contains the parameters that are ap plicable in Germany. Name Short descr. Value range D efault setting SMC 5000A SMC 6000A ACVtgRP[...]

  • Page 88

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 88 SMC50A_60A-IEN073320 Installation Guid e LDVtgC V 0 ... 50 0 0 Pmax W 0 ... 6050 55 00 6000 P-Wind-Mid W 0 ... 6000 2000 2000 P-Wind-Ramp W/s 10 ... 2000 10 0 0 10 0 0 Ripple-Ctl-Frq Hz 105 ... 1605 1 60 5 1 60 5 Ripple-Ctl-Lev % 0.5 ... 8 8 8 Ripple-Ctl-Rcvr disable, enable, auto disabl[...]

  • Page 89

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 89 14.4.3 Country-specif ic Parameter Settings Sunny Mini Central SMC 5000A The parameters listed below repr esent country-specific sett ings and are only displayed in installer mode. All other parameters are in ternational and can be viewed in the ta[...]

  • Page 90

    Te c h n i c a l D a t a SMA Te c h n o l o g i e A G Page 90 SMC50A_60A-IEN073320 Installation Guid e Sunny Mini Central SMC 6000A The parameters listed below repr esent country-specific sett ings and are only displayed in installer mode. All other parameters are in ternational and can be viewed in the table in section 14.4.2. Nam e Shor t descr .[...]

  • Page 91

    SMA Te c h n o l o g i e AG Te c h n i c a l D a t a Installation Gu ide SMC50A_60A-IEN073320 Page 91 14.4.4 Fixed Parameters Grayed out parameters are only displayed in installer mode. The following parameters are displayed in the parameter list but cannot be changed: Nam e Shor t descr . Default setting SMC 5000A SMC 6000A Fac -P de rat i ng Fac [...]

  • Page 92

    Contact SMA Te c h n o l o g i e A G Page 92 SMC50A_60A-IEN073320 Installation Guid e 15 Contact If you have any questions or technical problems concerning the Sunny Min i Central, contact our hotline. P lease have the followi ng information avail able when you contact SMA: • Inverte r type • Serial number of the Sunny Min i Central. • Type a[...]

  • Page 93

    SMA Te c h n o l o g i e AG Contact Installation Gu ide SMC50A_60A-IEN073320 Page 93[...]

  • Page 94

    Legal Restrictions SMA Te c h n o l o g i e A G Page 94 SMC50A_60A-IEN073320 Installation Guid e The information contained in t his document is the property of SMA Technologie A G. Publishing its content, either par tially or in full, requires the wr itten permision of SMA T ec hnologie AG. Any internal company copying of the document for t he purp[...]

  • Page 95

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    www.SMA.de Sales Solar Technology SMA Technologie AG Hannoversche Strasse 1– 5 34266 Niestetal, Germany Tel. : +49 561 9522 40 00 Fax: +49 561 9522 4040 E-mail: sales@SMA.de Freecall: +800 S UNNYBOY Freecall: +800 78669269 Innov ation in Syst ems T echnology for the Success of Photovoltaics[...]