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Table of Contents

SMA Solar Technology AG

Operating manual

3

MC-BOX-12-3-20-BE-en-13

Table of Contents

1

Information on this Document.....................................................................................................

5

1.1

Validity .............................................................................................................................................................

5

1.2

Target Group ...................................................................................................................................................

5

1.3

Levels of Warning Messages..........................................................................................................................

5

1.4

Symbols in the Document................................................................................................................................

5

1.5

Typographies in the Document .......................................................................................................................

6

1.6

Designation in the document ..........................................................................................................................

6

1.7

Additional Information.....................................................................................................................................

6

2

Safety ............................................................................................................................................

7

2.1

Intended Use....................................................................................................................................................

7

2.2

IMPORTANT SAFETY INSTRUCTIONS .........................................................................................................

8

3

Scope of Delivery ......................................................................................................................... 10

4

Product Overview ........................................................................................................................ 11

4.1

Product Description.......................................................................................................................................... 11

4.2

Symbols on the Product................................................................................................................................... 12

4.3

Grounding in the Multicluster System............................................................................................................. 12

4.4

System Structure............................................................................................................................................... 14

5

Mounting....................................................................................................................................... 15

5.1

Requirements for Mounting............................................................................................................................. 15

5.2

Preparing the Mounting Location ................................................................................................................... 16

5.3

Transporting and Mounting the Product ........................................................................................................ 17

6

Electrical Connection .................................................................................................................... 19

6.1

Overview of the Connection Area.................................................................................................................. 19

6.1.1

Interior View ..................................................................................................................................................... 19

6.1.2

View from Below .............................................................................................................................................. 20

6.2

Installing the Multicluster-Box without Grid-Connect-Box or NA-Box........................................................... 21

6.3

Connecting the Generator .............................................................................................................................. 21

6.4

Utility Grid Connection.................................................................................................................................... 22

6.4.1

Utility Grid Connection Options...................................................................................................................... 22

6.4.2

Connecting the NA-Box / Grid-Connect-Box ................................................................................................ 22

6.5

Connecting the Loads...................................................................................................................................... 23

6.6

Connecting the PV System .............................................................................................................................. 24

6.7

Connecting the Sunny Island .......................................................................................................................... 25

6.8

Grounding the Multicluster System................................................................................................................. 25

6.9

Connecting the Control Cables ...................................................................................................................... 26

6.9.1

Assignment of Spring-Cage Terminals ............................................................................................................ 26

6.9.2

Connecting the Control Cables of the Sunny Island Inverters....................................................................... 27

6.9.3

Connecting Supply Voltage for Grounding Contactor.................................................................................. 27

6.9.4

Connecting the Control Cables to the Grid-Connect-Box.............................................................................. 27

6.9.5

Connecting the Control Cables to the NA-Box .............................................................................................. 28

6.10 Connecting the Data Cable ............................................................................................................................ 28

7

Preparing for Commissioning ..................................................................................................... 30

8

Disconnect from voltage sources ................................................................................................ 31

9

Periodic Actions ............................................................................................................................ 32

Summary of Contents for MULTICLUSTER-BOX 12

Page 1: ...SUNNY ISLAND MULTICLUSTER BOX MC BOX 12 3 20 BE en 13 Version 1 3 ENGLISH Operating manual MULTICLUSTER BOX 12...

Page 2: ...lusion of implied warranties may not apply in all cases under some statutes and thus the above exclusion may not apply Specifications are subject to change without notice Every attempt has been made t...

Page 3: ...nnection 19 6 1 Overview of the Connection Area 19 6 1 1 Interior View 19 6 1 2 View from Below 20 6 2 Installing the Multicluster Box without Grid Connect Box or NA Box 21 6 3 Connecting the Generato...

Page 4: ...9 4 Connecting Power Cables to Spring Cage Terminals 35 9 5 Connecting Control Cables to Spring Cage Terminals 36 9 6 Mounting the Protective Cover 37 10 Maintenance 39 10 1 Inspection of Residual Cu...

Page 5: ...dards and directives Knowledge of and compliance with this document and all safety information 1 3 Levels of Warning Messages The following levels of warning messages may occur when handling the produ...

Page 6: ...ements to be selected Select Settings Date Button Key Button or key to be selected or pressed Select Enter 1 6 Designation in the document Complete designation Designation in this document Grid Connec...

Page 7: ...he all pole disconnection can be deactivated on the Grid Connect Box see operating manual of the Grid Connect Box If the all pole disconnection on the Grid Connect Box is deactivated the utility grid...

Page 8: ...To prevent personal injury and property damage and to ensure long term operation of the product read this section carefully and observe all safety information at all times DANGER Danger to life due to...

Page 9: ...product must only be closed during operation Store the product in a dry and covered location when closed Observe storage conditions Effects of an emergency disconnection Emergency disconnection on the...

Page 10: ...F J SM A A H G E I Figure 1 Components included in the scope of delivery Position Quantity Designation A 1 Multicluster Box B 1 Data cable for communication 10 m black C 3 Data cable for measurement a...

Page 11: ...in AC distribution board for Sunny Island inverters one generator one load and one PV system Load shedding Automatic bypass and reverse current monitoring for the generator Active anti islanding A A C...

Page 12: ...s power cables of the connected inverters 4 2 Symbols on the Product Symbol Explanation Beware of electrical voltage The product operates at high voltages Beware of hot surface The product can get hot...

Page 13: ...for the grounding configuration and the grid disconnection required for instances of grid failure Directly connecting the utility grid to the Multicluster Box must be permitted in accordance with the...

Page 14: ...AND NA BOX GRID CONNECT BOX Load contactor MULTICLUSTER BOX Main AC distribution board PV main distribution box not included in the delivery BATTERY Generator contactor GENERATOR LOAD PV MODULES PV IN...

Page 15: ...rters at the same location Mounting location A solid flat support surface must be available for mounting The mounting location must be suitable for the weight and dimensions of the product see Section...

Page 16: ...2 Preparing the Mounting Location WARNING Danger to life due to fire or explosion if mounted at an unsuitable location Mounting the product in areas with a high fire hazard can result in fire This can...

Page 17: ...ICE Damage to the product due to sand dust and moisture ingress after setting down on unsuitable surface Setting the product down on an unsecured or uneven surface may cause the product to warp and al...

Page 18: ...en 13 18 6 CAUTION Risk of injury if the Multicluster Box tips over The Multicluster Box is heavy and may tip over if not properly fastened to the support surface This can result in crushing injuries...

Page 19: ...Box Position Designation A Fuse switch disconnector F101 for LV HRC size 1 fuse links of the generator terminal B Fuse switch disconnector F102 for LV HRC size 1 fuse links of the load terminal C Sur...

Page 20: ...ral conductor of the PV system L Terminal X103 with spring cage terminals L1 L2 L3 and N to connect the line conductors and the neutral conductor of the main distribution for loads M Terminal X102 wit...

Page 21: ...it X111 6 and X111 7 with a jumper wire to block the generator contactor 6 3 Connecting the Generator You can connect a three phase generator to the Multicluster Box The line conductors are routed via...

Page 22: ...Box If the VDE AR N 4105 rule does not apply to the utility grid and a generator has to be connected in addition to the utility grid a Grid Connect Box must be installed between the utility grid and...

Page 23: ...t rail Use the strain reliefs and counter sleeves provided 6 5 Connecting the Loads The line conductors L1 L2 and L3 are routed via a fuse switch disconnector in the Multicluster Box LV HRC size 1 fus...

Page 24: ...applicable at the installation location Cable dimensioning In the event of a short circuit in the PV system cable short circuit currents arising in the generator or Grid Connect Box NA Box will flow...

Page 25: ...the Multicluster Box Cable requirements The AC conductors and DC conductors must always be routed in separate cables Conductor cross section 0 5 mm to 10 mm Procedure 1 Insert the power cables into t...

Page 26: ...gnation Description A X106 Control voltage of the Sunny Island main cluster B X107 Connect the supply voltage of the grounding contactor e g of the battery fuse DC C X110 Connection of control cables...

Page 27: ...ternal DC voltage can be tapped from the battery fuse or the terminal BatVtgOut of a Sunny Island inverter Requirements A battery fuse must be installed or an unoccupied BatVtgOut terminal must be ava...

Page 28: ...nductors must always be routed in separate cables Procedure 1 Insert the control cables into the Multicluster Box see Section 9 2 page 33 2 Connect the cables to the spring cage terminals X110 and X11...

Page 29: ...k Mstr L1 BackupVtgCur X30 for slave 1 of the main cluster to jack Slv1 L2 BackupVtgCur X31 for slave 2 of the main cluster to jack Slv2 L3 BackupVtgCur X32 3 Connect the data cable for communication...

Page 30: ...Multicluster Box and operating manual of the NA Box or Grid Connect Box The multicluster system must be grounded outside the Multicluster Box on the generator side or via the Grid Connect Box NA Box s...

Page 31: ...unny Island inverters see the Sunny Island operating manual 4 Disconnect the PV main distribution board from voltage sources and secure against reconnection 5 Shut down the generator and secure agains...

Page 32: ...make sure it cannot be reconnected before working on the device Only disassemble the protective covers if the product is disconnected from all voltage sources Wear suitable personal protective equipme...

Page 33: ...t and impair its functionality Select membranes that match the cable diameter Only pierce as many holes in the membranes of the cable feed through plate as you need for the cables The hole in the memb...

Page 34: ...en all screws of the base plate TX 25 screwdriver torque 9 Nm 9 3 Inserting Data Cables Separate wiring of data and power cables If data cables are wired near power cables coupling interference signal...

Page 35: ...plastic inserts must be firmly clamped between both sides of the two part cable feed through This ensures tightness of the enclosure seal 7 Position the cable feed through including cable on the outsi...

Page 36: ...is sufficiently pretensioned click 3 Insert the stripped insulated conductor into the spring cage terminal until it reaches the stop Ensure that no insulation is trapped in the terminal 4 Press down t...

Page 37: ...the spring cage terminal until it reaches the stop Ensure that no insulation is trapped in the terminal 3 Pull the screwdriver out of the clamping contact 4 Make sure that the insulated conductor is...

Page 38: ...9 Periodic Actions SMA Solar Technology AG Operating manual MC BOX 12 3 20 BE en 13 38 2 Tighten all fastening screws TX30 torque 4 Nm...

Page 39: ...m the end user that the inspection interval must always be complied with Point out to the end user that if a defect is detected a qualified person is required to perform the next steps Supply of loads...

Page 40: ...rge Arresters Inspection interval for surge arresters The inspection interval for surge arresters depends on the prevailing operating temperature At prevailing operating temperatures of up to 40 C ins...

Page 41: ...is recommended Above all the intervals between cleaning work and corrosion protection should be reduced SMA recommends a monthly optical inspection to determine the maintenance requirement Required m...

Page 42: ...14 page 51 10 Check whether the product is free of corrosion damage 11 If the product displays minor corrosion damage treat the affected area as follows Sand the area Clean the area with degreaser Pa...

Page 43: ...fastening screws for later use 3 Disassemble the protective covers and base plates 4 Remove all cables from the product 5 Release and remove the fastening screws on the bottom of the product 6 Mount t...

Page 44: ...00 A gG Sunny Island Connection Maximum number of Sunny Island inverters 12 Rated power of the Sunny Island inverters 72 kW Rated operating voltage between L and N 230 W Rated operating voltage betwee...

Page 45: ...umber of terminals 1 x three phase Rated power 138 kW Rated operating voltage between L and N 230 V Rated operating voltage between L1 and L2 400 V Rated current AC input current 3 x 200 A Terminals f...

Page 46: ...ation bus 30 m Auxiliary electric circuits Fuse 10x38 cylinder fuse Maximum permitted fuse rating for F105 F106 and F110 1 A gG Maximum permitted fuse rating for F111 6 A gG Terminals for connecting t...

Page 47: ...ision Form 1 no subdivision Exterior design closed type Installation only fixed interior installation permitted Construction type fixed components Suitable for use by electrically qualified persons or...

Page 48: ...of Conformity Yes Operating temperature range 25 C to 60 C Humidity non condensing 0 to 100 Depending on order option At operating temperatures above 40 C the Sunny Island inverters reduce their outpu...

Page 49: ...ster Box The Multicluster Box is the AC main distributor in a multicluster system The Multicluster Box connects the Sunny Island clusters with the loads and the power generators within a stand alone g...

Page 50: ...grid it will take over the power supply to the loads in this case Extension cluster Each extension cluster is subordinate to the main cluster The master of the extension cluster follows the instructi...

Page 51: ...d acid batteries Deutschland sterreich Schweiz SMA Solar Technology AG Niestetal Sunny Boy Sunny Mini Central Sunny Tripower 49 561 9522 1499 Monitoring Systems Kommunikationsprodukte 49 561 9522 2499...

Page 52: ...w SMA Service com Australia SMA Australia Pty Ltd Sydney Toll free for Australia 1800 SMA AUS 1800 762 287 International 61 2 9491 4200 United Arab Emirates SMA Middle East LLC Abu Dhabi 971 2234 6177...

Page 53: ......

Page 54: ...www SMA Solar com...

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