SMA SUNNY MINI CENTRAL 4600A Installation Manual
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SMA SUNNY MINI CENTRAL 4600A Installation Manual

Pv inverter
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PV Inverter
SUNNY MINI CENTRAL 4600A / 5000A / 6000A
Installation Manual
SMC46-60A11-IA-en-81 | IME-SMC50A_60A | Version 8.1
EN

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Summary of Contents for SMA SUNNY MINI CENTRAL 4600A

  • Page 1 PV Inverter SUNNY MINI CENTRAL 4600A / 5000A / 6000A Installation Manual SMC46-60A11-IA-en-81 | IME-SMC50A_60A | Version 8.1...

  • Page 3: Table Of Contents

    SMA Solar Technology AG Table of Contents Table of Contents Information on this Manual......7 Validity ..........7 Target Group .
  • Page 4 Connecting the PV Array (DC) ........31 Connecting the SMA Power Balancer ....34 5.5.1...
  • Page 5 Sunny Mini Central 4600A........

  • Page 6: Smc46-60A11-Ia-En-81

    Table of Contents SMA Solar Technology AG Accessories ........79 Contact .

  • Page 7: Information On This Manual

    You will find further information on special topics, such as the design of a miniature circuit-breaker or the description of the operating parameters, in the download area at www.SMA-Solar.com. Refer to the user manual provided for detailed information on how to operate the inverter.

  • Page 8: Symbols Used

    Information on this Manual SMA Solar Technology AG 1.4 Symbols Used The following types of safety precautions and general information are used in this manual: DANGER! DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

  • Page 9: Safety

    When designing the PV plant, ensure that the permitted operating range of all components is complied with at all times. The free design software "Sunny Design" (www.SMA-Solar.com) will assist you. The manufacturer of the PV modules must have approved the modules for use with this Sunny Mini Central.

  • Page 10: Safety Precautions

    Safety SMA Solar Technology AG 2.2 Safety Precautions DANGER! Danger to life due to high voltages in the inverter • All work on the inverter must be carried out by skilled persons only. CAUTION! Risk of burns due to hot enclosure parts •...

  • Page 11: Explanation Of Symbols

    Comply with the local regulations for earthing the modules and the PV array. In order to maintain the best possible protection for both the PV plant and human life, SMA Solar Technology AG recommends connecting together the PV array frame and other electrically conductive surfaces and earthing them.

  • Page 12: Symbols On The Type Label

    Safety SMA Solar Technology AG 2.3.2 Symbols on the Type Label Symbol Explanation Beware of hazardous voltage The inverter operates at high voltages. All work on the inverter must be carried out by skilled persons only. Beware of hot surface. The inverter can get hot during operation. Avoid contact during operation.

  • Page 13: Unpacking

    Cheese-head screws (M6x16): 1 x for enclosure lid (replacement), 1 x for earth terminal Jumpers (1 x for fan test, 1 x for the SMA Power Balancer wiring) Cylinder head screws (M6x8) for securing the inverter to the wall mounting...

  • Page 14: Identifying The Inverter

    Unpacking SMA Solar Technology AG Object Quantity Description Set of documents with explanations and certificates Supplementary sheet with inverter default settings 3.2 Identifying the Inverter You can identify the inverter by the type label. The type label is located on the right-hand side of the enclosure.

  • Page 15: Assembly

    SMA Solar Technology AG Assembly 4 Assembly 4.1 Safety DANGER! Danger to life due to fire or explosions Despite careful construction, electrical devices can cause fires. • Do not mount the inverter on flammable construction materials. • Do not mount the inverter in areas where highly flammable materials are stored.
  • Page 16 Assembly SMA Solar Technology AG • Never mount the device with a forward tilt. • Never mount the device with a sideways tilt. • Do not mount horizontally. • Mount at eye level in order that operating states can be read at all times.

  • Page 17: Mounting The Inverter Using The Wall Mounting Bracket

    SMA Solar Technology AG Assembly 4.3 Mounting the Inverter using the Wall Mounting Bracket 1. Mark the position of the drill holes using the wall mounting bracket and drill the holes. Use at least 2 of the 6 holes, 1 hole on the left- and right-hand sides respectively.
  • Page 18 Assembly SMA Solar Technology AG CAUTION! Risk of injury due to the heavy weight of the inverter The inverter weighs approx. 63 kg. • Attach the wall mounting bracket using the corresponding mounting material (dependent on the surface). • Use the side handles above and below or a steel rod (maximum diameter of 30 mm) for transport and mounting.
  • Page 19 "rechts/right" and "links/left". The ventilation grids prevent intrusion of dust and insects, and can be reordered from SMA Solar Technology AG as required (see Section 13 "Contact" (page 80)). Optional Anti-Theft Protection To protect the inverter against theft, the back panel can be secured to the wall at the bottom using two "safety screws".

  • Page 20: Electrical Connection

    Socket for connecting the Electronic Solar Switch (ESS) DC switch disconnector Cable glands for optional communication via RS485 (PG16) Cable gland for connection to the electricity grid (AC) (12 mm ... 25 mm) Cable glands for the SMA Power Balancer SMC46-60A11-IA-en-81 Installation Manual...

  • Page 21: Interior View

    The following figure shows the various components and connection areas of the open inverter. Object Description Connection area and slots for communication Display Jumper slot for fan test LEDs for displaying the operating states Jumper slot for SMA Power Balancer Installation Manual SMC46-60A11-IA-en-81...

  • Page 22: Connection To The Electricity Grid (Ac)

    SMA Solar Technology AG Object Description Terminals for the SMA Power Balancer Flat male tab for earthing the cable shield when connecting the SMA Power Balancer Additional terminal for earthing Terminals for AC cables Cable glands for the SMA Power Balancer...
  • Page 23 Section 11 "Technical Data" (page 70). Detailed information and examples on the design of miniature circuit-breakers are available in the Technical Information "Miniature Circuit-Breaker" to be found in the download area of SMA Solar Technology AG at www.SMA-Solar.com. DANGER! Danger to life due to fire When more than one inverter is connected in parallel to the same miniature circuit-breaker, the protective function of the miniature circuit-breaker is no longer guaranteed.

  • Page 24: Connecting The Inverter To The Electricity Grid (Ac)

    AC, nom The exact operating range of the inverter is specified in the operating parameters. The corresponding document is available in the download area at www.SMA-Solar.com. 2. Disconnect the miniature circuit-breaker and secure against reconnection. 3. Loosen all screws of the enclosure lid and remove the lid.

  • Page 25: Additional Earthing Of The Enclosure

    SMA Solar Technology AG Electrical Connection 9. Screw the swivel nut firmly onto the cable gland. 10. Secure the enclosure lid using all of the screws and the corresponding conical spring washers. Tighten the screws with 6 Nm torque in the order shown in the figure on the right.

  • Page 26: Setting The Display Language

    Italian national standard CEI 0-21. You can see the standard to which the inverter was set upon delivery on the type label and on the included supplementary sheet with the default settings. For more information, see the Technical Description "Operating Parameters" at www.SMA-Solar.com. Procedure 1.

  • Page 27: Connecting The Pv Array (Dc)

    SMA Solar Technology AG Electrical Connection 5.4 Connecting the PV Array (DC) 5.4.1 Conditions for DC Connection Using Y adaptors for the parallel connection of strings Y adaptors must not be visible or freely accessible in close proximity to the inverter. • The DC circuit must not be interrupted by Y adaptors.

  • Page 28: Assembling The Dc Connectors

    Electrical Connection SMA Solar Technology AG 5.4.2 Assembling the DC Connectors All PV display module connection cables must be equipped with the DC connectors supplied before connecting them to the inverter. Assemble the DC connectors as described below. Be sure to observe the correct polarity. The DC connectors are marked with the symbols "+"...
  • Page 29 SMA Solar Technology AG Electrical Connection Result Measure ☑ If the stranded wires are not visible in the • Release the clamping bracket. To do so, chamber, the cable is not correctly insert a screwdriver into the clamping positioned. bracket to lever it open (blade width: 3.5 mm).

  • Page 30: Opening The Dc Connector

    Electrical Connection SMA Solar Technology AG 5.4.3 Opening the DC Connector 1. Unscrew the screw connection. 2. Unlock the DC connector: Insert a screwdriver into the snap slot on the side and lever it out (blade width: 3.5 mm). 3. Carefully pull the DC connector apart.

  • Page 31: Connecting The Pv Array (Dc)

    SMA Solar Technology AG Electrical Connection 5.4.4 Connecting the PV Array (DC) DANGER! Danger to life due to high voltages in the inverter • Before connecting the PV array, ensure that the miniature circuit-breaker is switched off. NOTICE! Excessive voltages can destroy the multimeter •...
  • Page 32 Electrical Connection SMA Solar Technology AG 4. Check the strings for earth faults as described in Section 9.3.1 "Checking the PV Array for Earth Faults" (page 64). 5. Connect the assembled DC connectors to the inverter. ☑ The DC connectors click audibly into place.
  • Page 33 SMA Solar Technology AG Electrical Connection – Insert the DC connectors with sealing plugs into the corresponding DC inputs on the inverter. ☑ The DC connectors click audibly into place. 7. Ensure that all DC connectors are securely in place.

  • Page 34: Connecting The Sma Power Balancer

    SMA Solar Technology AG 5.5 Connecting the SMA Power Balancer The Sunny Mini Central is equipped with the SMA Power Balancer as standard. This enables a circuitry of three Sunny Mini Central inverters to a three-phase feed-in system. Each of the three Sunny Mini Central inverters in a group must be connected to a different line conductor of the low-voltage grid (L1, L2 and L3).
  • Page 35 SMA Solar Technology AG Electrical Connection Configuration Options There are four different configuration options for the "PowerBalancer" parameter. Local connection requirements Select the respective setting and always observe the local connection requirements and provisions of your network operator. • FaultGuard This operating mode allows for the implementation of a three-phase mains voltage monitoring, which also reacts to device faults.
  • Page 36 Electrical Connection SMA Solar Technology AG • PhaseGuard This operating mode allows for the implementation of three-phase mains voltage monitoring. – If one of the three inverters indicates a mains voltage fault and stops feeding in, the other two inverters also disconnect from the electricity grid automatically.
  • Page 37 Electrical Connection • Off The SMA Power Balancer is deactivated (default setting). – If one of the inverters displays a device fault or a mains voltage fault, only the affected inverter disconnects from the electricity grid and the other two inverters continue to feed in at full power.

  • Page 38: Cabling

    Electrical Connection SMA Solar Technology AG 5.5.2 Cabling Cable Requirements To connect the SMA Power Balancer, use a "LiYCY" cable of the following design: • Indoors: LiYCY 2 x 2 x 0.25 • Outdoors: Li-2YCYv 2 x 2 x 0.25 Item...
  • Page 39 SMA Solar Technology AG Electrical Connection Object Description Flat male tab for earthing the cable shield Silicone tube/cable route Cable glands Procedure 1. Open the inverter as described in Section 7.2 "Opening the Inverter" (page 48). 2. Insert the cables into each inverter.
  • Page 40 Connection with a Sunny Mini Central 9000TL, 10000TL or 11000TL In order to be able to connect the SMA Power Balancer to a Sunny Mini Central 9000TL, 10000TL or 11000TL, the Sunny Mini Central 4600A, 5000A, 6000A must be equipped with a special plug.

  • Page 41: Function Test

    Electrical Connection 5.5.3 Function Test To test whether the SMA Power Balancer operates correctly, proceed as follows. 1. Select the "PhaseGuard" setting of the "PowerBalancer" parameter for all three inverters. 2. Check whether all inverters in the group are feeding into the electricity grid normally.

  • Page 42: Communication

    To change grid-relevant parameters, you need a personal access code – the so-called SMA Grid Guard code. The application form for the personal access code is available in the download area at www.SMA-Solar.com, in the "Certificate" category of the respective inverter.

  • Page 43: Setting The Stand-Alone Grid Operation

    SMA Solar Technology AG Electrical Connection 5.7.2 Setting the Stand-Alone Grid Operation To operate the inverter in an off-grid system with Sunny Island, you must set the "Default" parameter to stand-alone grid ("OFF-Grid") operation. There are several ways of setting the inverter to stand-alone grid operation: •...

  • Page 44: Commissioning

    Commissioning SMA Solar Technology AG 6 Commissioning 6.1 Commissioning the Inverter 1. Check the following requirements before commissioning: – The inverter is securely in place – AC cables are correctly connected (electricity grid) – DC cables (PV strings) are fully connected – Unused DC inputs are closed using the corresponding DC connectors and sealing plugs –...

  • Page 45: Only For Italy: Self-Test In Accordance With Cei 0-21

    SMA Solar Technology AG Commissioning 6.2 Only for Italy: Self-Test in Accordance with CEI 0-21 6.2.1 Starting the Self-Test The self-test only applies to inverters of type SMC 6000A-11 which are commissioned in Italy. The Italian standard requires that all inverters in plants ≤ 6 kW feeding into the electricity grid perform a self-test in accordance with CEI 0-21.

  • Page 46: Abortion Of The Self-Test

    Commissioning SMA Solar Technology AG 6.2.2 Abortion of the Self-Test If, during the self-test, an unexpected disconnection requirement occurs, the self-test is aborted. The same applies if the DC voltage is so low that feed-in cannot be continued. • A message informing you that the self-test has been aborted is shown in the display for ten seconds: Autotest interroto.

  • Page 47: Display Messages During The Start-Up Phase

    SMA Solar Technology AG Commissioning 6.3 Display Messages During the Start-up Phase • After commissioning, the inverter displays the SMC xxx device type in the start-up phase. Wrxxx • After five seconds or a further tap on the enclosure lid, the firmware version of the internal processors is displayed by the inverter.

  • Page 48: Opening And Closing

    Opening and Closing SMA Solar Technology AG 7 Opening and Closing 7.1 Safety DANGER! Danger to life due to electric shock Before opening the inverter, observe the following: • Ensure that no voltage is present on the AC side. • Ensure that neither voltage nor current is present on the DC side.
  • Page 49 SMA Solar Technology AG Opening and Closing 4. Release and disconnect all DC connectors. To do this, insert a flat-blade screwdriver (blade width: 3.5 mm) into one of the side slots and pull the DC plug connectors straight out. Do NOT PULL ON THE CABLE.
  • Page 50 Opening and Closing SMA Solar Technology AG 6. Loosen all 6 screws of the enclosure lid and remove the enclosure lid from the front. 7. Verify the absence of voltage between L to N at the AC terminal using a suitable measuring device.

  • Page 51: Closing The Inverter

    SMA Solar Technology AG Opening and Closing 7.3 Closing the Inverter 1. Screw the enclosure lid on using the six screws and the corresponding conical spring washers. Tighten the screws with 6 Nm torque in the order shown in the figure on the right. The toothing of the conical spring washers must be facing the enclosure lid.
  • Page 52 Opening and Closing SMA Solar Technology AG 4. Check the Electronic Solar Switch for wear as described in Section 8.3 and attach it firmly. NOTICE! Damage to the inverter due to moisture and dust intrusion If the Electronic Solar Switch is not plugged in or incorrectly plugged in during operation, moisture and dust can penetrate the inverter.

  • Page 53: Maintenance And Cleaning

    SMA Solar Technology AG Maintenance and Cleaning 8 Maintenance and Cleaning 8.1 Cleaning the Inverter If the inverter is dirty and it is difficult to read the operating data and operating states of the inverter, clean the enclosure lid, the display and the LEDs using a damp cloth. Do not use any corrosive substances (e.g.
  • Page 54 Maintenance and Cleaning SMA Solar Technology AG Cleaning the Fans 5. Press the front latches backward and the rear latch forward. 6. Remove the fan by pulling it slowly and carefully downwards. 7. Unlock and remove the plug. The fan cables are long enough for you to lift the fans far enough out to disconnect the plug inside the inverter.

  • Page 55: Checking The Fans

    • Plug the provided jumper into the system control board. Setting Parameters 1. Request the installer password from the SMA Service Line (contact: see Page 80). 2. Set the "Fan-Test" parameter to "1" in the installer mode. 3. Check the air flow of the fans.

  • Page 56: Cleaning The Ventilation Grids

    Maintenance and Cleaning SMA Solar Technology AG 8.2.3 Cleaning the Ventilation Grids The inverter takes cooling air in from underneath via the fans and blows it out again through the ventilation grid on the upper sides. Clean the ventilation grids if they are dirty.

  • Page 57: Checking The Electronic Solar Switch (Ess) For Wear

    SMA Solar Technology AG Maintenance and Cleaning 8.3 Checking the Electronic Solar Switch (ESS) for Wear Check the Electronic Solar Switch for wear before plugging it in. Depending on the shape of the Electronic Solar Switch, you can estimate the wear on either the metal tongues (shape A) or on the plastic (shape B).

  • Page 58: Troubleshooting

    Do not perform any repairs that are not described here and take advantage of the 24-hour replacement service (inverter ready for shipping and handed over to a freight-forwarding company within 24 hours) and the SMA Solar Technology AG repair service instead. 9.1 Blink Codes...

  • Page 59: Error Messages

    "ACVtgRPro" for power quality monitoring. • If the mains voltage is continually within the tolerance range and this error message is still displayed, contact the SMA Service Line. Bfr-Srr Internal measurement comparison fault or hardware defect.
  • Page 60 K1-Close Error during relay test. Corrective measures K1-Open • Contact the SMA Service Line if this disturbance occurs frequently or several times in a row. Imax Overcurrent on the AC side. This message is displayed if the current in the AC electricity grid is higher than specified.
  • Page 61 Description and corrective measure MSD-Fac Internal measurement comparison fault or hardware defect. Corrective measures • Contact the SMA Service Line if this disturbance occurs frequently. MSD-Vac Internal measurement comparison fault or hardware defect. Corrective measures • Contact the SMA Service Line if this disturbance occurs frequently.
  • Page 62 (operating parameters: Vac-Min and Vac-Max). • If the mains voltage lies within the tolerance range, yet "Vac-Bfr" or "Vac-Srr" faults are still displayed, contact the SMA Service Line. SMC46-60A11-IA-en-81 Installation Manual...

  • Page 63: Red Led Is Permanently Glowing

    Internal program run disturbance. Corrective measures Watchdog Srr • Contact the SMA Service Line if this disturbance occurs frequently. 9.3 Red LED is Permanently Glowing If the red status display LED is permanently glowing during operation, there is an earth fault in the PV array or at least one of the varistors for overvoltage protection is defective.

  • Page 64: Checking The Pv Array For Earth Faults

    Troubleshooting SMA Solar Technology AG 9.3.1 Checking the PV Array for Earth Faults 1. Disconnect the inverter from both the DC and AC sides as described in Section 7.2 "Opening the Inverter" (page 48). DANGER! Danger to life due to electric shock •...
  • Page 65 SMA Solar Technology AG Troubleshooting Result Measure ☑ You have detected an earth fault. • The installer of the PV array must remedy the earth fault in the affected string. You can determine the location of the earth fault as described below.

  • Page 66: Checking The Function Of The Varistors

    B and C. Result Measure ☑ There is a conductive connection: Presumably there is a different error in the inverter. • Contact the SMA Service Line (see Section 13 "Contact" (page 80)). SMC46-60A11-IA-en-81 Installation Manual...
  • Page 67 The varistors are specially manufactured for use in the inverter and are not commercially available. They must be ordered directly from SMA Solar Technology AG (see Section 12 "Accessories" (page 79)). • To replace the varistors, proceed to step 3.

  • Page 68: Decommissioning

    Decommissioning SMA Solar Technology AG 10 Decommissioning 10.1 Dismounting the Inverter 1. Open the inverter as described in Section 7.2 "Opening the Inverter" (page 48). 2. Remove all cables from the inverter. 3. Close the inverter using the six screws and the corresponding conical spring washers.

  • Page 69: Packing The Inverter

    Dispose of the inverter at the end of its service life in accordance with the current locally applicable disposal regulations for electronic waste. Alternatively, send it back to SMA Solar Technology AG with shipping paid by sender, and labelled "FOR DISPOSAL" ("ZUR ENTSORGUNG") (contact see Page 80).

  • Page 70: Technical Data

    Technical Data SMA Solar Technology AG 11 Technical Data 11.1 DC/AC 11.1.1 Sunny Mini Central 4600A DC input Maximum DC power at cos φ = 1 5,250 W Maximum input voltage* 600 V MPP voltage range 246 V ... 480 V Rated input voltage...
  • Page 71 SMA Solar Technology AG Technical Data AC Output Rated power at 230 V, 50 Hz 4,600 W Maximum apparent AC power* 5,000 VA Rated grid voltage 230 V AC nominal voltage 220 V / 230 V / 240 V AC voltage range 160 V ...

  • Page 72: Sunny Mini Central 5000A

    Technical Data SMA Solar Technology AG 11.1.2 Sunny Mini Central 5000A DC input Maximum DC power at cos φ = 1 5,750 W Maximum input voltage* 600 V MPP voltage range 246 V ... 480 V Rated input voltage 246 V...
  • Page 73 SMA Solar Technology AG Technical Data AC Output Rated power at 230 V, 50 Hz 5,000 W Maximum apparent AC power 5,500 VA Rated grid voltage 230 V AC nominal voltage 220 V / 230 V / 240 V AC voltage range 160 V ...

  • Page 74: Sunny Mini Central 6000A

    Technical Data SMA Solar Technology AG 11.1.3 Sunny Mini Central 6000A DC input Maximum DC power at cos φ = 1 6,300 W Maximum input voltage* 600 V MPP voltage range 246 V ... 480 V Rated input voltage 246 V...
  • Page 75 SMA Solar Technology AG Technical Data AC Output Rated power at 230 V, 50 Hz 6,000 W Maximum apparent AC power 6,000 VA Rated grid voltage 230 V AC nominal voltage 220 V / 230 V / 240 V AC voltage range 160 V ...

  • Page 76: General Data

    Technical Data SMA Solar Technology AG 11.2 General Data Width x height x depth with 468 mm x 613 mm x 242 mm Electronic Solar Switch Weight 63 kg Length x width x height of packaging 396 mm x 803 mm x 596 mm...

  • Page 77: Approvals

    SMA Solar Technology AG Technical Data 11.4 Approvals Country standard, as of 07/2012 VDE0126-1-1 ✓ ✓ ✓ ✓ ✓ ✓ VDE-AR-N-4105 ✓ ✓ ✓ ‒ ‒ ‒ AS 4777 ○ ○ ○ ‒ ✓ ✓ C10/11 ✓ ✓ ✓ ‒ ‒...

  • Page 78: Features

    Technical Data SMA Solar Technology AG 11.6 Features DC connection SUNCLIX DC connector AC connection Screw terminal Display LC text display ® Bluetooth Wireless Technology optional RS485, galvanically isolated optional 11.7 Electronic Solar Switch (ESS) Electrical endurance in the event of short circuit,...
  • Page 79 SMA Solar Technology AG Accessories 12 Accessories You will find the corresponding accessories and spare parts for your product in the following overview. If required, you can order these from SMA Solar Technology AG or your specialist dealer. Description Brief description SMA order number...
  • Page 80 Contact SMA Solar Technology AG 13 Contact If you have technical problems concerning our products, please contact the SMA Service Line. We require the following information in order to provide you with the necessary assistance: • Inverter type • Inverter serial number •...
  • Page 83 Legal Provisions The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission.

This manual is also suitable for:

Sunny mini central 5000aSunny mini central 6000a

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