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SUNNY CENTRAL 500HE-US/CA - Installation Manual

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1. Installation Manual SC500HEUS IA US_en 14 75 9 Commissioning 20 21 22 23 76 Push the door stay A at the bottom of the Control and Interface Cabinet s right door upwards Turn the handle downward Push the handle down into the direction of the Sunny Central until it audibly locks into place Put the key into the Control and Interface Cabinet s lock Close the lock Turn the handle downward Push the handle down into the direction of the Sunny Central until it audibly locks into place Attach the plate to the lower part of the Control and Interface Cabinet SCSOOHEUS IA US_en 14 SMA America LLC Installation Manual SMA America LLC 9 Commissioning 24 Attach the 7 screws and tighten them with a torx 25 26 27 28 29 screwdriver Turn the stop start switch on the Control and Interface Cabinet s door to the right until it reaches the start position A DANGER During operation high voltages are present in the Sunny Central The key left in the lock allows unauthorized personnel to open the Sunny Central Death resulting from burning and electric shock e Remove the keys from the locks of the door and from the lock of the stop start switch e Keep the key in a safe place Switch on the fuses in the DC distribution boxes e g Sunny Central String Monitor Remove the cover of the PV modules in the array Switch on the AC main circuit breaker
2. Installation Manual SC500HEUS IA US_en 14 85 12 Contact 12 Contact SMA America LLC If you have technical problems concerning our products contact your installer or the SMA Service Line We require the following information in order to provide you with the necessary assistance e Inverter type e Type and number of modules connected e Communication method Serial number of the Sunny Central e Failure or warning number of the Sunny Central e Display of the Sunny Central SMA Solar Technology America LLC 6020 West Oaks Blvd Ste 300 Rocklin CA 95765 Tel 1 916 625 0870 Tel 1 877 MY SMA TECH Tel 1 877 697 6283 Toll free available for USA Canada and Puerto Rico Fax 1 916 625 0871 Service SMA America com www SMA America com SMA Solar Technology Canada Inc 2425 Matheson Blvd E 8th Floor Mississauga ON LAW 5K5 Canada Tel 1 877 506 1756 Toll free available for Canad Service SMA Canada ca www SMA Canada ca 86 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 13 Appendix Celsius to Fahrenheit conversion 13 Appendix Celsius to Fahrenheit conversion The Sunny Central measures temperature in degrees Celsius e g set external temperature for derating Conversion from Degrees Celsius to Degrees Fahrenheit e Formula F C 9 5 32 F Degrees Fahrenheit C Degrees Celsius e Example for 30 C F 30 9 5 32 F 54 32 F 86 F Conversion
3. If there is enough radiation the DC and AC switches switch on audibly and the Sunny Central is in operation The display shows the power of the Sunny Central A and the switch symbol B is closed Installation Manual SC500HEUS IA US_en 14 77 9 Commissioning SMA America LLC total 10001 e e O 9 2 1 Check the Ventilation In operation the Sunny Central is cooled by fans in case the temperature exceeds a defined threshold In the Power Cabinet the air is sucked in from the top front and expelled at the bottom in the back Check the ventilation air flow using a sheet of paper 1 Holdthe piece of paper in front of the air shafts 2 Check to see whether the sheet is blown away from or sucked toward the inverter 78 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 9 Commissioning 3 Compare the air circulation with what is described in this section Result 1 The Sunny Central sucks in air and blows it out as described in this section Commissioning has been successfully completed Result 2 The Sunny Central does not suck air in nor does it blow it out as described in this section Shut down the Sunny Central Contact SMA America see section 12 Result 3 The Sunny Central does not suck air in nor does it blow it out at all Check to see whether the Sunny Central is in operation Ifthe Sunny Central is in operation shut it down
4. 26 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 5 2 Preparation of the Base 5 Transport and Installation The inverter must be secured to the foundation per local building codes At the bottom of the Sunny Central there are 6 mounting holes for anchoring it to its base 5 2 1 Position of the Mounting Holes 4 3 in 110 mm 53 03 in 1347 mm pid 39 37 in 1000 mm i 31 69 in 805 mm 42 91 in 1090 mm 4 Position Distance between hole 3 and 4 Dimension 31 69 in 805 mm Distance between hole 1 and 2 53 03 in 1 347 mm Distance between hole 2 and 3 39 37 in 1 000 mm Cable entry width 42 91 in 1 090 mm Cable entry depth 31 69 in 805 mm 5 2 2 Size of the Mounting Holes 0 63 in 16 mm Position Dimension Diameter 0 63 in 16 mm Installation Manual SC500HEUS IA US_en 14 27 5 Transport and Installation SMA America LLC 5 2 3 Drilling Holes into the Base DANGER Drilling into live wires Death resulting from electric shock e Checkthe installation location for electric cables laid in the base 1 Measure the distances for the holes Mark the positions of the holes Drill the holes into the base on marked positions RON Put dowels into the d
5. Central Inverter SUNNY CENTRAL 500HE US CA Installation Manual SCS00HEUS IA US_en 14 98 4017514 Version 1 4 US SMA America LLC Legal Restrictions Legal Restrictions Copyright 2013 SMA America LLC All rights reserved No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photographic magnetic or otherwise without the prior written permission of SMA America LLC Neither SMA America LLC nor SMA Solar Technology Canada Inc makes representations express or implied with respect to this documentation or any of the equipment and or software it may describe including with no limitation any implied warranties of utility merchantability or fitness for any particular purpose All such warranties are expressly disclaimed Neither SMA America LLC nor its distributors or dealers nor SMA Solar Technology Canada Inc nor its distributors or dealers shall be liable for any indirect incidental or consequential damages under any circumstances The exclusion 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 to make this document complete accurate and up to date Readers are cautioned however that SMA America LLC and SMA Solar Technology Canada Inc reserve the right to make changes with
6. 180 to 220 VAC AC nominal frequency 60 Hz Operating range 59 3 to 60 5 Hz Max AC current 1 470 A AC at 200 V AC General Data Inverter technology True sine wave current source high frequency PWM with galvanic insulation Max operating altitude 13 000 ft above sea level Power Reduction The Sunny Central can function without power reduction up to 3 300 ft above sea level At higher altitudes the power is reduced by 5 per 3 300 ft Installation Manual SCS500HEUS IA US_en 14 83 11 Technical Data SMA America LLC Ambient temperatures 13 Fto 113 F 25 C to 45 C without power reduction 13 F to 122 F 25 C to 50 C with power reduction Storage Temperature 13 F to 140 C Display read out ambient temperatures 5 F to 113 F Cooling Temperature controlled forced fans for cooling Easily removable filters easily accessible Dimensions W x H x D including roof 101 x 90 x 38 in 2 562 mm x 2 277 mm x 955 mm Weight 3 970 lbs Enclosure rating NEMA 8R stainless steel and aluminium Current THD lt 5 with respect to IEEE 1547 Power factor 0 9 leading to 0 9 lagging Internal consumption lt 110 VA Standby lt 1 700 VA with fans Compliance UL 1741 IEEE 1547 The Sunny Central 500HE US was evaluated by UL for compliance with UL 1741 at the inverter terminals a
7. A Screw terminals for grounding the AC and DC cables 1 Strip the cable by about 1 2 in 30 mm 2 Open the screw terminal completely 3 Plug the copper inner conductor of the cable into the screw terminal 4 Tighten the screw terminal using an Allen key For required torque see tables above 5 Connect all grounding cables as described above Installation Manual SC500HEUS IA US_en 14 71 8 Electrical Connection SMA America LLC 8 8 3 Connecting protective earth to busbar A For every PE cable 72 Busbar for grounding the AC and DC cables You can connect up to 4 PE cables to the busbar s Strip the PE cable by about 1 LE in 30 mm 1 2 in Open the screw terminal completely ieri Plug the copper inner conductor of the PE cable into the screw terminal Tighten the screw terminal with a torque wrench and a torque of 41 ft lbs 56 Nm SC500HEUS IA US_en 14 Installation Manual SMA America LLC 9 Commissioning 9 Commissioning This section explains step by step how to put the Sunny Central into operation and how you can determine that the commissioning was successful A DANGER Electric shock due to improper startup of the Sunny Central Death resulting from burning and electric shock e All procedures described in this section shall only be conducted by qualified personnel e If problems occur when performing the work described here contact SMA America i Ap
8. M 12 Procedure of connecting i NOTICE Oxide layers on contact surfaces after transport and storing of the Disconnect Unit Yield loss resulting due to poor electrical conductivity Before connecting the cables clean the contact surfaces Use only the non woven abrasive delivered with the Sunny Central Do not clean the surfaces with sandpaper Do not damage the tin coating Do not touch the contact surfaces after they have been cleaned Position the cable lug or lugs on the busbar 3 Tighten the screw with a nut in a clockwise direction Connect all DC cables as illustrated above Installation Manual SC500HEUS IA US_en 14 61 8 Electrical Connection SMA America LLC 8 6 Connection of the PV Modules Do not connect the PV modules until the optional communication cables have been connected see section 7 DC distribution boxes e g Sunny Central String Monitor must be installed between the PV modules and the Sunny Central where the PV module cables are gathered and led to the Sunny Central The Photovoltaic System Grounding must be installed per the requirements of Sections 690 41 through 690 47 of the National Electrical Code ANSI NFPA 70 and is the responsibility of the installer 8 6 1 PV Modules DC Connection at Negative Grounding and DC Connection at Positive Grounding Connection with Terminal Blocks The illustration below shows a Sunny Central which is equipped for connection to 9 or 18 D
9. 25 C the heating elements switch on This ensures that the temperature in the inverter cannot decrease any further A ICT Position Designation Wire size A Heating B X481 24 V signal The 24 V signal AWG12 disconnects the auxiliary power supply In accordance with National Electrical Code of the inverter ANSI NFPA 70 C X483 The 24 V signal switches on AWG12 disconnects the inverter externally In accordance with National Electrical Code ANSI NFPA 70 D X482 230 V supply voltage of the AWG14 heating In accordance with National Electrical Code ANSI NFPA 70 E X220 208 V control voltage See section 8 2 3 Installation Manual SC500HEUS IA US_en 14 49 8 Electrical Connection SMA America LLC 8 2 3 Requirements Cable Requirements Cable Size Cable 12 AWG 4 mm minimum 140 F 60 C minimum copper wire 14 AWG 4 mm minimum 194 F 90 C minimum copper wire Grid For connecting the external voltage a 208 V grid is required at the insta
10. 45 7 3 3 Connecting the Cable to the Sunny WebBox 45 TRA Terminations sins dar ii air 46 8 Electrical Connection iii lara 47 CAMS ARR IRA ites IO TRAI 47 8 2 Connection in Control and Interface Cabinet 48 8 2 1 Connection Area for Analog inputs and auxiliary power 48 8 2 2 Connection Area of the Low Temperature Option 49 8 2 3 Requirements visi e a 50 8 SC500HEUS IA US_en 14 Installation Manual SMA America LLC Table of Contents 9 8 2 4 Optional External 3 phase voltage supply ZAC 208 120V 60Hz i 50 8 2 5 Connecting the external 208 V power supply 50 8 2 6 Connecting Analog input setting cables 53 8 2 7 Connecting Cables for the Low Temperature Option 54 8 3 Connection Area for AC DC cables and ground 55 8 4 Connection Options s cse24 causes Seeders ecines 640s ye 57 BAN DC Fases ino er hehe adora 57 8 4 2 Grounding the PV modules i 57 8 4 3 Cabl connection sc rr nodale 57 8 4 4 Cable requirements for DC AC and PE connection 58 8 4 5 Additional cable requirements for DC connection 58 8 5 Connecting DC cables iii dro 59 8 5 1 Connecting DC cables with screw terminals 59 8 5 2 Connecting DC cables with cable lugs LL 60 8 6 Connection of the PV Modules 62 8 6 1 PV Modules DC Connection at Negative Grounding and DC Conne
11. 5 ft lbs 37 Nm 8 4 5 Additional cable requirements for DC connection Use the cable lugs to connect DC cables Connect 2 conductors per input terminal maximum Both conductors must have the same sizing The DC inputs are isolated from the enclosure and the system grounding If required by section 250 of the National Electrical Code ANSI NFPA 70 the installer is responsible for this grounding Maximum number of DC inputs 9 x PV 9xPV 9x ground Maximum number of DC fuses 9 sized 450 A maximum DC input voltage 330 600 V Maximum DC current 1600 A 58 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 5 Connecting DC cables 8 5 1 Connecting DC cables with screw terminals di DANGER Voltage is present in PV modules exposed to light Death resulting from electric shock e Cover the PV modules e Switch off the fuses in the DC distribution boxes e g Sunny Central String Monitor and secure them against reconnection e Follow all safety precautions of the module manufacturer A DANGER Normally grounded conductors may be ungrounded and energized when a ground fault is indicated Risk of electric shock e Test before touching e Work on the Disconnect Unit must be carried out by qualified personnel u A all i B D i Position Description A Nut size M 12 Inst
12. 8 Electrical Connection SMA America LLC Plug the copper inner conductor of the cable into the screw terminal Tighten the screw terminal using a screwdriver The required torque is 315 in lb Connect all ungrounded DC path cables of the PV modules as described above Connection to busbars A oO R WN ID 64 Busbar for the connection of the PV modules ungrounded DC path cables Position Interface Cabinet right wall middle Open the Sunny Central as described in section 10 1 Position the cable lug or lugs on the busbar Insert the lock washers and screws into the holes Tighten the screw with a nut in a clockwise direction using a torque of 55 ft lbs Connect all grounding cables as described above The ungrounded DC path cables are connected SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 7 AC Connection NOTICE The AC outputs are isolated from the enclosure and the system grounding so that the AC output and neutral are not bonded to ground If required by section 250 of the National Electrical Code ANSI NFPA 70 the installer is responsible for this grounding 8 7 1 Additional cable requirements for AC connection e Use the screw terminals or cable lugs to connect the AC cables to the AC breakers as described in section 8 7 3 e Connect 6 conductors per phase maximum NOTICE External AC fuses The Disconnect Unit for Sunny Central 50O
13. Contact SMA America see section 12 Installation Manual SC500HEUS IA US_en 14 79 10 Opening the Sunny Central SMA America LLC 10 Opening the Sunny Central Electric shock due to improper opening of the Sunny Central Death resulting from burning and electric shock e All procedures described in this section shall only be conducted by qualified personnel e Observe the sequence described here when opening the Sunny Central e If problems occur when performing the work described here contact SMA America The DC fuses in the Power Cabinet become hot during operation Danger of burn injury due to hot components e When working on the Sunny Central wear protective gloves 10 1 Opening the Control and Interface Cabinet 1 Turn the stop start switch on the Control and Interface Cabinet s door to the left until it reaches the stop position 2 The AC and DC switches in the Sunny Central switch off audibly 3 Switch off the internal AC main circuit breaker and or the external AC disconnect When the Sunny Central is disconnected the display turns off Cover the PV modules 5 Switch off the DC disconnects and secure them against reconnection Switch off the fuses in the DC distribution boxes e g Sunny Central String Monitor and secure them against reconnection 7 Wait 5 minutes When the Sunny Central is switched off voltage will remain in the internal capacitors for another 8 minutes M
14. Installation Manual SMA America LLC 5 Transport and Installation 2 Removethe kick plates of the Power Cabinet by pulling them toward you see figure on the right 3 Remove the kick plates of the Control Cabinet carefully by pulling it 3 to 4 in toward you Pay attention not to tear the grounding cable 4 Remove the grounding cables on the backside of the kick plates 5 Remove the kick plates of the Control Cabinet 6 Load the cabinet on a forklift or a crane fork from the front see section 5 3 2 7 Transport the cabinet to the installation site During transport be sure to follow all the instructions provided in section 5 3 5 5 2 Attach the Sunny Central to the base The mounting holes A are located on the outside of the 4 Sunny Central s stands The holes for mounting the Sunny Central to the base have a diameter of 0 63 in 16 mm Use appropriate mounting material Figure to the right Mounting hole in the front left stand of the Power Cabinet 1 Insert screws in all 6 mounting holes of the Sunny Central for the position of the mounting holes refer to section 5 2 2 Tighten screws Installation Manual SC500HEUS IA US_en 14 35 5 Transport and Installation SMA America LLC 5 5 3 Install Ventilation Plates Slides for installing the ventilation plate are located on the stands of the Power Cabinet Figure to the right slide in the front left stand A of the Power Cabinet 1 Place
15. from Degrees Fahrenheit to Degrees Celsius e Formula C F 32 5 9 F Degrees Fahrenheit C Degrees Celsius e Example for 86 F C 86 32 5 9 C 54 5 9 C 30 C Diagram 80 60 40 SR 20 10 0 20 40 60 80 100 120 140 160 180 F Installation Manual SC500HEUS IA US_en 14 87 SMA Solar Technology www SMA Solar com SMA America LLC www SMA America com
16. the terminal block marked with 208 V M The external 208 V power supply is connected 52 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 2 6 Connecting Analog input setting cables 1 Remove the insulation of the cable by 2 4 in 60 mm approx 2 4 in 60 mm 2 Uncover the wires about 1 8 in 45 mm Strip the wires about 0 2 in 5 mm 4 Insert the screwdriver into the rectangular opening of the terminal and press it By 5 The terminal is open 5 3 g il aoh elojas INS a 6 Connect the positive wire of the active power to i 7 rm terminal A Y H 7 Connect the negative wire of the active power to i terminal B el 8 Connect the ground wire of the active power to terminal C 9 Connect the positive wire of the reactive power to terminal A 10 Connect the negative wire of the reactive power to terminal B Ni 11 Connectthe ground wire of the reactive power to terminal C Installation Manual SC500HEUS IA US_en 14 53 8 Electrical Connection SMA America LLC 12 Pull the screwdriver out of the terminal 13 Pull the insulated conductor to check that it is securely in place MI The insulated conductors of the external power supply are connected la Cha 7 14 Fasten the cabl
17. the ventilation plate A onto the slide in the Power Cabinet and push into the Sunny Central The grille in the ventilation plate must be in the back If properly installed the ventilation plate should not protrude from the cabinet Tip If the ventilation plate gets stuck when pushing it into the Sunny Central hold it from the bottom and press the middle area upwards while pushing it in 5 5 4 Attaching the Kick Plates to the Sunny Central 1 Attach the kick plates to front and back of the Power Cabinet and tighten the screws 2 Install the Grounding cables to the kick plates of the Control Cabinet attach the kick plates and tighten the screws with a TX screwdriver 36 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 6 Attaching the Conduits 6 Attaching the Conduits In this section you will learn where to insert the cables in the Sunny Central and where to punch the holes for the conduits The DC cables the AC cables and the communication cables can be routed into the Sunny Central s Control and Interface Cabinet from the right or from below The two options are described below 6 1 Insert cables from the right into the Sunny Central Insert the DC cables the AC cables and the data cables into the Sunny Central from the right A metal sheet is attached to the Sunny Central for this purpose NOTICE Seeping moisture during installation of the Sunny Central Damage to the electronics of the Sun
18. transformer D Warning regarding hazardous voltages E Warning regarding hot surface F Warning regarding hot surface G Information regarding negative grounding H Information regarding positive grounding Information regarding equipment ground K Notice not to change settings L Information regarding AC voltage Installation Manual SC500HEUS IA US_en 14 19 3 The Sunny Central 3 4 Identifying the Sunny Central You can identify the Sunny Central using the type plate see figure at right The type plate is on the inside of the Control and Interface Cabinet on the upper left side and in the Power Cabinet on the right side Position Description A Type description of the Sunny Central B Serial number of the Sunny Central C Date of manufacture 3 5 Firmware SMA America LLC SMA America gun www smaramerica com A SUNNY CENTRAL radin Germany Assembled in Denver Col Model i B SC500HE US E Serial No Ground and Fault Detector ENCIOSURE Type 3R 154 US LISTED METRO SOT AA The Sunny Central s firmware and that of the display are shown on the display of the Sunny Central The Sunny Central s user manual describes how to obtain the firmware version 20 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 4 Unpacking 4 Unpacking This section describes what to look out fo
19. 1 Notes on this Manual This manual describes the installation and the commissioning of a Sunny Central 500HE US and Sunny Central SOOHE CA with up to 9 DC fuses This manual does not cover any details concerning PV modules Information concerning the PV modules is available from the manufacturer of the PV modules 1 1 Target Group This manual is for qualified personnel Qualified personnel has received training and has demonstrated skills and knowledge in the construction and operation of the device Qualified personnel is trained to deal with the dangers and hazards involved in installing electric devices 1 2 Validity This manual is valid for the Sunny Central 500HE US and Sunny Central SOOHE CA In this manual the Sunny Central 500HE US and Sunny Central 500HE CA are referred to as Sunny Central In this document the manufacturer of the SMA inverters described herein being SMA America LLC or SMA Solar Technology Canada Inc as indicated on the type label of the inverter is referred to as SMA 1 3 Additional Information You can find further information on special subjects in the download area of www sma america com or www sma solar com Among other things the download area contains the following items e Installation guide Sunny Central String Monitor Controller e Installation guide Sunny Central 485HUB e Installation guide Sunny Sensor 485HUB 1 4 Structure of this Documentation The Sunny Central s installation compr
20. AHJ must consider the effects of using different UL Listed transformers with respect to electrical ratings impedance and the resultant affect on the performance of the inverter with respect to the ratings and impedance specified in the installation manual Refer to the technical description Transformer Requirements for a detailed Transfomer information The description is available at www sma america com and www sma solar com Principle of a PV Power System with a Sunny Central A B G D F G 14 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 2 Safety Position Description A PV modules B DC distribution with DC fuses e g Sunny Central String Monitor C e g SMA Disconnect Unit D Sunny Central E e g SMA Disconnect Unit F Transformer G Public grid Any other application of the Sunny Central or installation of components and modifications which are not explicitly allowed endanger the safety and void the warranty as well as the operation permit PV and AC disconnect As an option the internal AC circuit breaker of the Sunny Central can be mounted externally either in the Disconnect Unit made by SMA or in another cabinet provided by others i The unit is provided with a UL listed circuit breaker on the output rated 1600 A for branch circuit protection If the circuit breaker shall be located externally to secure the AC path you have to use the same type of circuit bre
21. C strings A Screwterminalsforthe connection of the PV modules grounded DC path cables 1 Strip the cable by about 1 2 in 30 mm 2 Open the screw terminal completely 3 Plug the copper inner conductor of the cable into the screw terminal 4 Tighten the screw terminal using a screwdriver The required torque is 315 in lb 5 Connect all grounded DC path cables of the PV modules as described above 62 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection Connection to busbars A oor WN D gt Busbars for the connection of the PV modules grounded DC path cables Open the Sunny Central as described in section 10 1 Position the cable lug or lugs on the busbar Insert the lock washers and screws into the holes Tighten the screw with a nut in a clockwise direction using a torque of 55 ft lbs Connect all grounding cables as described above The DC cables are connected 8 6 2 PV Modules DC Connection at Negative Grounding and DC Connection at Positive Grounding Connection with Terminal Blocks The illustration below shows a Sunny Central which is equipped for connection to 9 or 18 DC strings A Screw terminals for the connection of the PV modules ungrounded DC path cables Position Interface Cabinet right wall middle Strip the cable by about 1 2 in 30 mm Open the screw terminal completely Installation Manual SC500HEUS IA US_en 14 63
22. C500HEUS IA US_en 14 23 Installation Manual 5 Transport and Installation SMA America LLC 5 1 2 Ambient Conditions e The installation location must be accessible at all times e The ambient temperature must be between 13 F and 122 F between 25 C and 50 C e Direct solar irradiation reduces the output power of the Sunny Central e Refer to the installation requirements for further information on indoor placement e For more information see section 11 and the Installation requirements for Sunny Central 500HEUS which can be downloaded at www sma america com and www SMA Solar com 5 1 3 Minimum Clearance Minimum Clearance 1 Sunny Central Observe the specified minimum clearances for the cables ventilation and for opening the doors For installing the Sunny Central in closed rooms an air supply of 1 766 CFM 3 000 m3 h is needed 16 in 406 mm 12 in 300 mm Soin mm A 47 in 47 in Position Minimum Clearance Front 47 in 1 200 mm Left side in 150 mm Rear 12 in 300 mm Right side A Cables inserted from below 6 in 150 mm B Cables inserted from the side 47 in 1 200 mm Top 16 in 406 mm 24 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 5 Transport and Installation Minimum Clearance 2 Sunny Centrals with Transformer Observe the specified minimum clearances for the cables for ventilation and for opening the doors Open
23. HE US CA CP is provided with UL listed circuit breaker on output rated 1 600 A for branch circuit protection The unit is provided with a UL listed circuit breaker on the output rated 1 600 A for branch circuit protection If the circuit breaker shall be located externally see section 2 1 for further details e To reduce the risk of fire connect only to a circuit provided with over current protection in accordance with National Electrical Code ANSI NFPA 70 8 7 2 Arranging AC cables This section explains how to arrange the AC cables to minimize the interferences between the different phases Make sure that the cables of the different phases have got the same length Cable arragement for AC cables shorter than 6 LA ft 2 m Arrange the cables as shown in the following figure for all number of cables with length shorter than 6 ft 2 m The description is exemplary for an arrangement with 4 cables per phase The distance between the cables should be twice the diameter of a single cable ld B B B A 9 A ATC 22d 22d r r i B CA t 22d Figure 1 AC cable arrangement 1 Installation Manual SC500HEUS IA US_en 14 65 8 Electrical Connection Cable arragement for AC cables longer than 6 ft 2 m SMA America LLC Arrange the cables as shown in the following figure For all number of cables with length longer than 6 ft 2 m The description is exemplary for an arrangement with 4 cables
24. I The Sunny Central is deactivated and can be opened 80 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 10 Opening the Sunny Central 15 Turn off the automatic circuitbreaker on the inside Pull the handle of the Control and Interface Cabinet upwards and turn it to the right Put the key into the Control and Interface Cabinet s lock and open it Open the right door of the Control and Interface Cabinet of the Control and Interface Cabinet s door Inside of the left door is a handle A Turn the handle through 180 to the top left MI The door s catch is released and the left door of the Control and Interface Cabinet can be opened Open the left door of the Control and Interface Cabinet Loosen and remove the seven screws at the plate below the doors of the Control and Interface Cabinet by using a Torx screwdriver Carefully pull off the metal plate toward the front Installation Manual SC500HEUS IA US_en 14 81 10 Opening the Sunny Central SMA America LLC 16 17 18 Disconnect the grounding cable inside the metal plate Put the metal plate aside Verify the absence of voltage with respect to ground at the AC clamp with an appropriate meter MI If there is a voltage present the installation must be checked Verify the absence of voltage with respect to ground at the DC clamp with an appropriate meter MI If there is a voltage present the inst
25. Manual SC500HEUS IA US_en 14 29 5 Transport and Installation SMA America LLC 5 4 Transporting the Sunny Central with a Crane 5 4 1 Uninstalling the Roof of the Sunny Central To transport the Sunny Central with a crane you must remove the roof of the Sunny Central 1 Loosen the screws A of the right air filter and keep them in a safe place 2 Disassemble the right air filter by pulling its lower side forward and up 30 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 5 Transport and Installation 3 Loosen the screws of the left air filter A and keep them in a safe place 4 Dissassemble the left air filter by pulling its lower side forward and up 5 Move the front edge of the roof up and move the roof slightly backwards to put it out off the guide rail 6 Unscrew the PE cable from the fixing point on top of the Sunny Central 7 Remove the roof of the Sunny Central Installation Manual SC500HEUS IA US_en 14 31 SMA America LLC 5 Transport and Installation 5 4 2 Moving the Sunny Central with a Crane 1 For transporting the Sunny Central with a crane use suitable hoisting steel wire ropes hoisting hooks and loops 2 Anchor the loops at the intended openings in the guide rails 3 Take the heavy weight of the Sunny Central into account 5 4 3 Installing the Roof of the Sunny Central After moving the Sunny Central by crane you must install the roof of the Sunny Cen
26. ages 2 1 Appropriate Usage The Sunny Central is a MPPT maximum power point tracker PV inverter that converts the DC energy from PV modules to AC energy This energy is then fed into the public grid The Sunny Central 500HE US is designed for indoor and outdoor installation The Sunny Central HE US is a high efficiency PV inverter and it does not include a transformer inside its cabinets You can connect up to 2 Sunny Centrals to one transformer External output transformer requirements e The Sunny Central has been evaluated by UL for compliance with Underwriters Laboratory UL 1741 IEEE 1547 requirements at the inverter terminals and with UL Recognized external transformer Model 3UI380 3 10 Manufactured by J Schneider This transformer is rated for a voltage of 200 V LL on the inverter side and an impedance of less than 6 e If the Sunny Central is used with a different transformer other than the transformer used during testing the external transformer used must be a UL Listed type with separate primary and secondary windings rated 500 kVA minimum and limited to a maximum impedance variance of less than or equal to 6 This external transformer is required to be located between the output of the Sunny Central and the utility power connection The Authority Having Jurisdiction AHJ must consider the possible consequences of using a different transformer other than the one used to evaluate the Sunny Central by UL In addition the
27. aker ABB Emax E2B A with 42 kA rated short circuit current ABB Emax E2N A with 65 kA rated short circuit current or ABB Emax E2H A with 85 kA rated short circuit current and and 1600 A continuous current rating each to ensure UL listing of the whole system According to National Electrical Code ANSI NFPA 70 and Canadian Electrical Code it is neccessary to install a PV and AC disconnect Therefore either the Disconnect Unit made by SMA for PV as well as AC disconnection or a solution provided by others has to be used to satisfy this requirement Disclaimer It is prohibited to use the Sunny Central for purposes other than those described here It is prohibited to modify the Sunny Central or to install components that are not explicitly recommended by SMA or sold by SMA for this purpose It is prohibited to connect the Sunny Central without transformer to the grid Operating the Sunny Central without transformer causes a short circuit and can destroy the Sunny Central Installation Manual SC500HEUS IA US_en 14 15 2 Safety SMA America LLC 2 2 Safety Instructions DANGER High voltages are present in the live components of the low voltage grid Death resulting from burning and electric shock e Do not touch the live components of the Sunny Central or low voltage grid e Pay close attention to all safety precaution measures regarding the low voltage grid A DANGER During operation high voltages are present in the Sunny C
28. allation Manual SC500HEUS IA US_en 14 59 8 Electrical Connection SMA America LLC Position Description B Spring washer C Washer D Cable lug E Busbar F Screw head size M12 Strip the cable by about 1 15 in 30 mm 2 Open the set screw of the terminal completely Plug the copper or aluminum conductor of the cable into the screw terminal and tighten it with the specified torque 4 If necessary tighten the screw terminal to the busbar again using a torque wrench with a torque of 27 ft lbs 37 Nm 8 5 2 Connecting DC cables with cable lugs A DANGER Voltage is present in PV modules exposed to light Death resulting from electric shock Cover the PV modules Switch off the fuses in the DC distribution boxes e g Sunny Central String Monitor and secure them against reconnection Follow all safety precautions of the module manufacturer A DANGER Normally grounded conductors may be ungrounded and energized when a ground fault is indicated Risk of electric shock Test before touching Work on the Disconnect Unit must be carried out by qualified personnel 60 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection E B j B a lil i Wf D_ Rn mo Position Description Screw head size M 12 Spring washer Washer Cable lug Busbar Nut size
29. allation must be checked 10 2 Opening the Power Cabinet 82 Switch off the Sunny Central as described in section 10 1 Pull the handle of the Power Cabinet upwards and turn it to the right Put the key into the Power Cabinet s lock and open it Open the door Inside of the left door is a handle A Turn the handle through 180 to the top left MI The doors catch is released and the left door of the Power Cabinet can be opened Open the left door of the Power Cabinet SCS5OOHEUS IA US_en 14 Installation Manual SMA America LLC 11 Technical Data 11 Technical Data In this section you will find the technical data for the Sunny Central s operation the norms to which it conforms and the required cables and torques PV Generator Connection Data MPP range 330 V DC to 600 V DC at full power DC Input voltage 330 V DC to 480 V DC at full power DC starting voltage 390 V DC adjustable Max input current 1 600 A DC voltage ripple peak to peak lt 3 Maximum number of DC inputs 9 x PV 9 x PV 9 x ground Maximum number of DC fuses 9 sized 450 A maximum Maximum array short circuit current concerning NEC 450 A 1 56 288 4 A Grid Connection Data Nominal output power up to 113 F 45 C 500 kW Output power at 122 F 50 C approx 347 kW Nominal AC voltage 200 V AC 3 phase without neutral Operating range
30. and follow all instructions cautions and warnings in this manual Warnings in this document A warning describes a hazard to equipment or personnel It calls attention to a procedure or practice which if not correctly performed or adhered to could result in damage to or destruction of part or all of the SMA equipment and or other equipment connected to the SMA equipment or personal injury n x lt 3 o o Description A DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury INTe j 0 NOTICE is used to address practices not related to personal injury Warnings on this product The following symbols are used as product markings with the following meanings Symbol Description Warning regarding dangerous voltage The product works with high voltages All work on the product must only be performed as described in the documentation of the product Beware of hot surface The product can become hot during operation Do not touch the product during PP operation 4 SC500HEUS IA US_en 14 Installation Manual SMA America LLC Symbol Description Electric arc hazards The product has large electrical pot
31. ately from AC and DC cables Draw the cable into the Sunny Central see section 6 Plug the cable into the Sunny WebBox s socket Plug the cable into the socket of the switch router PC or Laptop Close the Interface Cabinet of the Sunny Central Installation Manual SC500HEUS IA US_en 14 45 7 Connecting Optional Communication Devices SMA America LLC 7 3 4 Termination To ensure sufficient signal quality of the RS485 data bus it must be terminated on both ends The Sunny WebBox is located at one of the end points of the RS485 data bus e Mount jumper to J1A The jumper is mounted upon delivery Signal biasing jumper J1B and jumper J1C To ensure sufficient signal quality of the RS485 communication bus a bias must be connected to the WebBox e Connect jumper to J1B and JIC Both jumpers are mounted upon delivery 46 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 Electrical Connection This section describes how the Sunny Central is connected to the grid and to the PV modules and what precautions must be observed in order to avoid material and personal damages It provides information on the necessary cable sizes and the magnitude of the torque for the cable connection 8 1 Safety NOTICE The components in the Sunny Central can be damaged by electrostatic discharge e When working on the Sunny Central and when handling the components observe all ESD safety regu
32. connecting the product to the electrical utility grid contact the local utility company This connection must be made only by qualified personnel Wiring of the product must be made by qualified personnel only 6 SC500HEUS IA US_en 14 Installation Manual SMA America LLC Table of Contents Table of Contents 1 NotesonthisManual Lk Target Group s ccs star durarono 12 Valdi iatale Cee ey 1 3 Additional Information o oo baces ieat ake oda hei 1 4 Structure of this Documentation 2 Solely thes beets ite 2 1 Appropriate Usage 06 ee eee eee 22 Safety WStOChens 2c oe eo ie ed Bete eas ATEREA 3 The Sunny Central 2 1 0 sas la dew dae eae ea ela 3 1 System Overview 0 eee eens 3 2 The Design of the Sunny Central 3 3 Location of the Safety Notices scsi 3 4 ldentifyingthe SunnyCentrali scalari 39 Firmware aaa o A Unpadking iif cise diaw lle od aaa 4 1 Unpacking and Inspection 0 0 cece eee eee eee 4 2 Scope of Delivery cic iatovtaton nein ee tamintly orta tesi AS SOTA JE irta NISSAN Meee a 5 Transport and Installation eee eee eee eee 5 1 Choosing the Installation Site 5 1 1 Dimensions and weight LL 5 1 2 Ambient Conditions gt il 5 1 3 Minimum Clearance 0000 ccc 5 1 4 Characteristics of the Base 5 2 Preparation of the Base ri teooke eee ades wed 5 2 1 Position of the Mounting Holes LL 5 2 2 Size of the Mounti
33. ction at Positive Grounding 00 00 eee 62 8 6 2 PV Modules DC Connection at Negative Grounding and DC Connection at Positive Grounding 0 00s eee 63 8 7 AC Connection sssaaa le en vee eed eke eas 65 8 7 1 Additional cable requirements for AC connection 65 8 2 Arranging AC Cables ici gu wnat sows 4 oe Meena ae 65 8 7 3 Connecting AC cables to busbars LL 67 8 74 AC Connection e erer s hoe es edhe teed la 69 8 8 Connecting profective edtith i 71 8 8 1 Additional cable requirements for PE connection 71 8 8 2 Connecting protective earth to Terminal Blocks 71 8 8 3 Connecting protective earth to busbar 72 COMMITS SIO INIA G ios fae aioe tetas li lira 73 9 1 Visual Inspection of the Sunny Central 73 9 2 Switching the Sunny Central On 74 9 25 Check the Ventilation roccie 78 Installation Manual SC500HEUS IA US_en 14 9 Table of Contents SMA America LLC 10 Opening the Sunny Central 0 80 10 1 Opening the Control and Interface Cabinet 80 10 2 Opening the Power Cabinet stione 82 11 Technical Data saga tibie 83 11 1 Measurement Accuracy i 84 11 2 Torques and Cable Sizes ilo 85 12 Contact os ois E E r N a a ra 86 13 Appendix Celsius to Fahrenheit conversion 87 10 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 1 Notes on this Manual
34. d not be made long term it only serves the purpose of reading the data Position Description A Sunny WebBox B Laptop Cable The cable for the connection of the Sunny WebBox to a PC Laptop must meet the following requirements e The cable must not be longer than 330 ft 100 m Use High quality crossover cable shielded twisted pair cables of category 5 CAT 5 or higher 44 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 7 Connecting Optional Communication Devices 7 3 1 Installing the WebBox in the Sunny Central RwWN gt Open the Control and Interface Cabinet as described in section 10 1 Hook both lower brackets of the Sunny WebBox under the lower edge of the top hat rail Press the Sunny WebBox upwards Snap the top edge of the top hat rail into the top mounting brackets of the Sunny WebBox 7 3 2 Connecting the Sunny WebBox in the Sunny Central 1 Plug the W215 connector into the SMA COM socket B of the WebBox Insert the power supply plug into socket A of the WebBox 7 3 3 Connecting the Cable to the Sunny WebBox The network connection on the Sunny WebBox is marked as displayed on the adjacent graphic The same marking for the network connections is usually to be found on your switch router PC or Laptop If this is not the case please refer to the switch router PC or Laptop manual di Route the cables separ
35. data cable into the Sunny Central see section 6 3 Remove the insulation of the data cable by approx 2 4 in 60 mm and uncover the shield Sa Uncover the wires about 1 8 in 45 mm a K 5 Strip the wires about 0 2 in 5 mm 2 4 in 60 mm Obin L in 02 n 15 24 mm 40 64mm 5 mm Installation Manual SC500HEUS IA US_en 14 41 7 Connecting Optional Communication Devices SMA America LLC 6 Connect the wires to the connector as shown in the figure on the right I A RA Position Description Aii A Sunny Sensor 485Hub socket B Plug oong C Sunny SensorBox a 7 Note down the wire color 4 12V GND D D PE 12 V GND D D sS Paa Sus Z 8 Insert the plugs into the socket on the bottom of the i L Sunny Sensor 485Hub Neu bt a 9 Close the Sunny Central rav eno D FE The operating manual of the Sunny SensorBox shows you 105 i how to connect the data cable in the SensorBox and sas connect the sensors to the Sunny SensorBox C rin oo A o as 7 3 Sunny WebBox optional For more information on the Sunny WebBox e g operation see its technical description The technical description is included in the scope of del
36. e to the cable anchoring rail using a cable tie M The cable is protected against pulling out 8 2 7 Connecting Cables for the Low Temperature Option e Connect the cables to the terminals in accordance with the circuit diagram 54 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 3 Connection Area for AC DC cables and ground The cables of the PV modules and the external transformer switch gear are connected in the Interface area Sunny Central for the Connection of 9 DC Strings with busbars Standard Position Description A DC connection neg grounding DC connection pos grounding B DC connection neg grounding DC connection pos grounding C AC connection D Ground connection Installation Manual SC500HEUS IA US_en 14 55 8 Electrical Connection SMA America LLC Sunny Central for the Connection of 9 DC Strings with Terminal Blocks Option Xu A Position Description A DC connection neg grounding DC connection pos grounding B DC connection neg grounding DC connection pos grounding C AC connection D Ground connection 56 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 4 Connection Options There are various options for connecting the Sunny Cent
37. ential differences between its conductors Arc flashes can occur through air when high voltage current flows Do not work on the product during operation Risk of Fire Improper installation of the product may cause a fire Observe the operating instructions Read the documentation of the product before working on it Follow all safety precautions and instructions as described in the documentation Installation Manual SC500HEUS IA US_en 14 5 SMA America LLC General Warnings General Warnings All electrical installations must be made in accordance with the local and National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 1 This document does not and is not intended to replace any local state provincial federal or national laws regulation or codes applicable to the installation and use of the product including without limitation applicable electrical safety codes All installations must conform with the laws regulations codes and standards applicable in the jurisdiction of installation SMA assumes no responsibility for the compliance or noncompliance with such laws or codes in connection with the installation of the product The product contains no user serviceable parts For all repair and maintenance always return the unit fo an authorized SMA Service Center Before installing or using the product read all of the instructions cautions and warnings in this manual Before
38. entral Death resulting from electric shock Do not operate the Sunny Central with doors open A DANGER During operation high voltages are present in the Sunny Central Death resulting from electric shock e Before commencing work on the Sunny Central e Disconnect completely e Ensure that the device cannot be reconnected e Ensure that no voltage is present e Ground and short circuit e Cover any nearby live parts A DANGER Normally grounded conductors may be ungrounded and energized when a ground fault is indicated Risk of electric shock e Test before touching Work on the Sunny Central must be carried out by qualified personnel 16 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 2 Safety Failure to follow the manual the operating instructions and the safety precautions may lead to severe injury from electric shock e All work on the Sunny Central shall only be done as described in this manual e Pay attention to all safety instructions e Follow all operating instructions e If problems occur when performing the work described here contact SMA America Operating a damaged Sunny Central may cause severe injury from electric shock e The Sunny Central shall only be used when it is technically faultless and safe to operate e Operate the Sunny Central only if there are no visible damages Regularly check the Sunny Central for visible damage e Ensure tha
39. es from below into the Sunny Central Insert the DC cables the AC cables and the data cables into the Sunny Central from the bottom through the foundation 38 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 7 Connecting Optional Communication Devices 7 Connecting Optional Communication Devices The Sunny Central can be equipped with a Sunny WebBox and or a Sunny SensorBox and Sunny Central String Monitoring communication equipment For more details concerning the Sunny Central String Monitor US see the manual of the Sunny Central String Monitor US This section explains how the Sunny WebBox and the Sunny SensorBox in the Sunny Central is connected NOTICE The components in the Sunny Central can be damaged by electrostatic discharge e When working on the Sunny Central and when handling the components observe all ESD safety regulations Discharge electrostatic charge by touching the grounded Sunny Central enclosure Only then is it safe to touch any electronic components NOTICE Seeping moisture during installation of the Sunny Central Damage to the electronics of the Sunny Central e Do not open the Sunny Central when it is raining or when a high humidity is present gt 95 e For conduit hubs use only UL Listed rainproof or wet location hubs complying with UL 514B for entry into the enclosure Installation Manual SC500HEUS IA US_en 14 39 7 Connecting Optional Communication D
40. evices SMA America LLC 7 1 Position of the Communication Devices The Sunny WebBox is located on the inside of the Power Cabinet s door _ Jo WE A TIT s B SRO MONT R commons c p LL l 7 D LT Seen ra Position Description A Sunny WebBox see section 7 3 B Sunny Central String Monitor Controller C Sunny Sensor 485Hub see section 7 2 D 485Hub SC 40 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 7 Connecting Optional Communication Devices 7 2 Connecting the Sunny SensorBox optional This section describes how to connect the Sunny SensorBox to the Sunny Sensor 485Hub in the Sunny Central Data cable The data cable for the connection of the Sunny SensorBox to the Sunny Sensor 485Hub must meet the following requirements e The data cable must not be longer than 4 000 ft 1 200 m e Use cables with a section of 2 x 2 x AWG 24 2 x 0 25 mm shielded twisted pair cables i Data Cable Recommendation SMA also provides data cables Please contact your electrician or wholesaler 7 2 1 Connecting the Data Cable of the Sunny SensorBox Connect the data cable to the socket A on the bottom of the Sunny Sensor 485Hub 1 Open the Control and Interface Cabinet as described in section 10 1 2 Route the data cables separately from AC and DC cables Draw the
41. ge can cause moisture to seep into the Sunny Central Damage to the Sunny Central e The Sunny Central must be closed during storage If stored for 6 months or longer make sure the storage area is dry e The storage temperature has to be between 13 F to 140 F 25 C to 60 C NOTICE Uneven underground can damage the frame construction e The underground must be suitable for the weight of the inverter of 1 800 kg e The underground may only deviate from a level of 0 25 22 SC500HEUS IA US_en 14 Installation Manual 5 Transport and Installation SMA America LLC 5 Transport and Installation This section shows you how to find the best installation site for your Sunny Central It provides instructions on how to transport and install a single Sunny Central as well as two Sunny Centrals to one transformer Observe all safety precautions in this section to avoid material and personal damages 5 1 Choosing the Installation Site 5 1 1 Dimensions and weight The Sunny Central has a total weight of approx 3 970 Ibs 1 800 kg Dimensions with roof 100 87 Position Dimension Height 89 76 in 2 280 mm Width 100 87 in 2 562 mm Depth 37 60 in 955 mm 89 76 in 2280 mm Dimensions without roof Position Dimension Height 80 79 in 2 052 mm Width 98 58 in 2 504 mm Depth 37 24 in 946 mm 80 78 in 2052 mm S
42. ing the doors of two Sunny Central devices blocks the escape route e Only open the doors of one Sunny Central at the same time 12 in 47 in 1200 mm 12 in 300 mm Position Description A Sunny Central 1 B Sunny Central 2 C Medium voltage transformer D Cable route between Sunny Central and transformer The cables between the Sunny Central and the transformer may not be longer then 49 ft 15 m Position Dimensions Sunny Central rear 12 in 300 mm Distance between Sunny Central A an B 48 in 1 800 mm Right side of Sunny Central A 47 in 1 200 mm Left side of Sunny Central B 6 in 150 mm Distance between transformer and Sunny Centrals 47 in 1 200 mm Installation Manual SC500HEUS IA US_en 14 25 5 Transport and Installation SMA America LLC 5 1 4 Characteristics of the Base The foundation must be made of concrete or of a metal frame skid e The mounting surface must be level and strong enough to support the weight of the inverter The evenness of the foundation must be better than 0 25 e The width and depth of the base must be at least the same size as the Sunny Central The recommended minimum sizing is shown in picture below Position Description Width 110 in 2 800 mm Depth 45 in 1150 mm e To insert the cables from below the cable conduits must be laid in the foundation see section 6 2
43. ises several steps Here we will describe the contents you will find in the sections of the installation instructions The instructions are divided into the following sections Section 2 Safety In this section you will find general safety directions which you must observe throughout the entire installation process Pay special attention to this section so as to avoid personal and material damages Installation Manual SC500HEUS IA US_en 14 11 1 Notes on this Manual SMA America LLC Section 3 The Sunny Central In this section you will see how one can identify the Sunny Central A short description of the Sunny Central s design and functions is given here Section 4 Unpacking This section describes what to look out for upon receiving your Sunny Central and who to turn to if your Sunny Central is damaged Section 5 Transport and Installation This section shows you how to find the best installation site for your Sunny Central It provides step by step instructions on how to transport and install the Sunny Central and connect the cabinets with each other electrically Observe all safety precautions in this section to avoid material and personal damages Section 6 Attaching the Conduits In this section you will learn where to insert the cables in the Sunny Central and where to punch the holes for the conduits Section 7 Connecting Optional Communication Devices The Sunny Central can be equipped with different communicatio
44. ivery and is available for download at www SMA America com The communication between the Sunny WebBox and the PC or the network is conducted via Ethernet The Sunny WebBox is equipped with an integrated network connection which enables it to be connected to any Ethernet network The connection supports Ethernet and Fast Ethernet networks The speed adapts automatically to the connected switch router or PC 42 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 7 Connecting Optional Communication Devices Sunny WebBox in a Network The Sunny WebBox can be integrated into a network via a router or a switch If the Sunny WebBox is permanently integrated into a network with Internet access it can automatically transmit the data of your PV system to Sunny Portal Position Description A Sunny WebBox B Switch or router C Computer D Laptop Data cable The data cable for the connection of the Sunny WebBox to a network must meet the following requirements e The data cable must not be longer than 330 ft 100 m Use High quality straightthrough patch cables shielded twisted pair cables of category 5 CAT 5 or higher Installation Manual SC500HEUS IA US_en 14 43 7 Connecting Optional Communication Devices SMA America LLC Sunny WebBox Connected to a PC Laptop To read out the data the Sunny WebBox can be connected to a PC or Laptop This connection shoul
45. lations e Discharge electrostatic charge by touching the grounded Sunny Central enclosure e Only then is it safe to touch any electronic components NOTICE Seeping moisture during installation of the Sunny Central Damage to the electronics of the Sunny Central Do not open the Sunny Central when it is raining or when a high humidity is present gt 95 e For conduit hubs use only UL Listed rainproof or wet location hubs complying with UL 514B for entry into the enclosure Installation Manual SC500HEUS IA US_en 14 47 8 Electrical Connection SMA America LLC 8 2 Connection in Control and Interface Cabinet 8 2 1 Connection Area for Analog inputs and auxiliary power The illustration below shows the connecting area for analog inputs and auxiliary power ABCD E Position Description A Analog input limiting active power 4 mA to 20 mA B Analog input set point reactive power 4 mA to 20 mA C External start stop D Fault external transformer E 208 V external control voltage 48 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 2 2 Connection Area of the Low Temperature Option For the low temperature option the supply voltage for the heating elements is provided by means of the external terminals If the ambient temperature is below 13 F
46. les Connect the 5 AC cables line A to the busbar A Connect the 5 AC cables line B to the busbar B Connect the 5 AC cables line C to the busbar C SMA America LLC Tighten the screw with a nut in a clockwise direction using a torque of 55 ft lbs Pull the cables to make sure they are securely connected The AC cables are connected SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 8 Connecting protective earth NOTICE The AC outputs are isolated from the enclosure and the system grounding so that the AC output and neutral are not bonded to ground If required by section 250 of the National Electrical Code ANSI NFPA 70 the installer is responsible for this grounding Refer to section 8 4 4 for general requirements for DC AC and PE connection of the Disconnect Unit 8 8 1 Additional cable requirements for PE connection e Use the screw terminals or cable lugs to connect the AC cables to the AC breakers as described in section 8 7 3 e The conductor size of the PE connection is depending on the installed over current protection device For determination see National Electrical Code ANSI NFPA 70 article 250 122 e The Photovoltaic System Grounding must be installed per the requirements os sections 690 41 through 690 47 of the National Electrical Code ANSI NFPA 70 and is the responsibility of the installer 8 8 2 Connecting protective earth to Terminal Blocks
47. llation site 8 2 4 Optional External 3 phase voltage supply 3AC 208 120V 60Hz It is possible to connect the Sunny Central to an external 208 V voltage supply The Sunny Central consumes up to 1 700 W in operation It draws the energy from the PV field At installation sites where the feed in tariff per kWh does apply it may be useful to connect the Sunny Central to an external voltage supply The Sunny Central then draws the electricity for its internal power supply from the grid via the external voltage supply i Fuses between external power supply and Sunny Central The installer is responsible for installing the fuses between the external power supply and the Sunny Central The Sunny Central has an internal fuse of 16 A 8 2 5 Connecting the external 208 V power supply NOTICE Details for auxiliary power connection are shown in the circuit diagrams attached to the Sunny Central 1 Insert the cable through a separate cable duct into the Sunny Central see section 6 2 Loosen the 4 screws on top of the gasket plate in the base of the Control Cabinet in a counterclockwise direction and remove them 50 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 10 11 13 14 15 16 17 Loosen the 3 screws on the side of the gasket plate in a counterclockwise direction and remove them Remove a rubber gasket out from the gasket pla
48. n devices This section explains how the communication devices in the Sunny Central are connected Section 8 Electrical Connection This section describes how the Sunny Central is connected to the grid and to the PV modules and what precautions must be observed in order to avoid material and personal damages It provides information on the necessary cable sizes and the magnitude of the torque for the cable connection Section 9 Commissioning This section explains step by step how to put the Sunny Central into operation and how you can determine that the commissioning was successful Section 10 Opening the Sunny Central This section describes how to open the Sunny Central and what precautions must be observed in order to avoid personal damages Section 11 Parameter This section provides an overview of the parameters of the Sunny Central and their respective threshold values 12 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 1 Notes on this Manual Section 12 Technical Data In this section you will find the technical data for the Sunny Central s operation the norms to which it conforms and the required cables and torques Installation Manual SC500HEUS IA US_en 14 13 2 Safety SMA America LLC 2 Safety In this section you will find general safety directions which you must observe throughout the entire installation process Pay special attention to this section so as to avoid personal and material dam
49. nd with UL Recognized external transformer Model DLHXO724T07001 Manufactured by J Schneider This transformer is rated for a voltage of 200 V LL on the primary side and an impedance less than or equal to 6 Efficiency Maximum efficiency approx 98 6 CEC efficiency 98 11 1 Measurement Accuracy The Sunny Central is not equipped with a calibrated meter The display values may deviate from the actual values and must not be used as a basis for invoicing The Sunny Central s measured values are required for the system management and to control the current to be fed to the grid Deviation Voltage measurement 5 6V Frequency measurement 0 08 Hz Disconnect time 4 5 84 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 11 2 Torques and Cable Sizes GJ 11 Technical Data Connect all cable using copper or aluminium conductors that are suitable for temperatures of 194 F 90 C and in accordiance with National Electrical Code ANSI NFPA 70 and Canadian Electrical Code respectively Required torque values Connection method Cable fixing in screw terminal Cable size 4 AWG to 600 kcmil 25 mm to 304 mm Torque 41 5 ft lbs 56 5 Nm Cable lug aluminum on copper busbar 4 AWG to 800 kcmil 25 mm2 to 405 mm 27 5 ft lbs 37 Nm Cable lug copper on copper busbar 4 AWG to 800 kemil 25 mm to 405 mm 44 5 ft lbs 60 Nm
50. nection in the Sunny Central The indicator shows you whether there is clockwise phase sequence Installation Manual SC500HEUS IA US_en 14 73 9 Commissioning SMA America LLC 9 2 Switching the Sunny Central On di DANGER During operation high voltages are present in the Sunny Central Death resulting from electric shock Do not operate the Sunny Central with doors open 1 Push the door stay A at the bottom of the Power Cabinet s left door upwards 2 Close the left door of the Power Cabinet 3 Turn the handle inside the Power Cabinet at 180 to the right 4 Push the door stay A at the bottom of the Power Cabinet s right door upwards 5 Close the right door of the Power Cabinet 6 Turn the handle downward 7 Push the handle down into the direction of the Sunny Central until the handle audibly locks into place 8 Put the key into the Power Cabinet s lock 74 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 9 Commissioning 9 Close the lock 10 Remove the key 11 Turn the handle cover downward 12 Push the door stay A at the bottom of the Control and Interface Cabinet s left door upwards 13 Close the left door of the Control and Interface Cabinet 14 Turn the handle inside the Control and Interface Cabinet through 180 to the right 15 Turn on the automatic circuit breaker on the inside of the Control and Interface Cabinet s door
51. ng Holes 5 2 3 Drilling Holes into the Base LL Installation Manual SC500HEUS IA US_en 14 Table of Contents SMA America LLC 5 3 Transporting the Sunny Central 28 5 3 1 Center of Gravity of the Sunny Central 28 5 3 2 Equipment for Transport 29 5 4 Transporting the Sunny Central with a Crane 30 5 4 1 Uninstalling the Roof of the Sunny Central 30 5 4 2 Moving the Sunny Central with a Crane 32 5 4 3 Installing the Roof of the Sunny Central 32 5 5 installing the Sunny Central nonan auae 34 5 5 1 Removing the Kick Plates from the Sunny Central 34 5 5 2 Attach the Sunny Central to the base J5 5 5 3 Install Ventilation Plates LL 36 5 5 4 Attaching the Kick Plates to the Sunny Central 36 6 Attaching the Condu ts cece eee eee eee 37 6 1 Insert cables from the right into the Sunny Central 37 6 2 Insert cables from below into the Sunny Central 38 7 Connecting Optional Communication Devices 39 7 1 Position of the Communication Devices 40 7 2 Connecting the Sunny SensorBox optional 41 7 2 1 Connecting the Data Cable of the Sunny SensorBox 41 7 3 sunny WebBox optional scarola 42 7 3 1 Installing the WebBox in the Sunny Central 45 7 3 2 Connecting the Sunny WebBox in the Sunny Central
52. nvironments Operating Principles The PV modules convert a portion of sunlight into electrical energy direct current The Sunny Central then converts the direct current into alternating current and feeds it into the public grid This current can be used directly or it can be sold to your energy provider 3 2 The Design of the Sunny Central A B ls f Y i SAAANA CE n Position Cabinet Description A Power Cabinet The power cabinet contains the power unit for converting direct current to alternating current B Control and All AC DC and communication cables are connected in the control Interface and interface cabinet The control and interface cabinet contains Cabinet e system control e Sunny Display stop start switch optional communication devices 18 SC500HEUS IA US_en 14 Installation Manua SMA America LLC 3 The Sunny Central 3 3 Location of the Safety Notices The figure to the right shows the location of the safety notices on the Sunny Central Position Description A Power Cabinet door and Control and Interface Cabinet door Warning regarding high voltages in the Sunny Central B Warning regarding hazardous voltage E Notice regarding operation of the Sunny Central without
53. ny Central Do not open the Sunny Central when it is raining or when a high humidity is present gt 95 e For conduit hubs use only UL Listed rainproof or wet location hubs complying with UL 514B for entry into the enclosure 1 Remove the plate screws 2 Put the screws and washers aside Remove the kick plate of the Control Cabinet carefully by pulling it 3 to 4 in toward you Pay attention not to tear the grounding cable 4 Remove the grounding cable on the backside of the kick plate of the Control Cabinet Remove the kick plate of the Control Cabinet 6 Remove the braces A Mark all the holes for the conduits Example for a plate prepared for the connection of 9 DC strings RE A Conduit for AC cable BXBXBXB TR B Conduit for DC cable 00 DOO C Conduit for communication cable i Do not lay the AC connection cables of one phase together in one cable duct All cables of one phase must have the same length Please refer to section 8 7 2 for information on arrangement of AC cabling Installation Manual SC500HEUS IA US_en 14 37 6 Attaching the Conduits SMA America LLC 8 9 10 11 12 13 Punch holes for the conduits Check the seal of the plate Attach the plate to the Sunny Central Attach the screws and washers and tighten with a torque of 31 in lbs Insert the conduits into the openings Attach the conduits with the appropriate hubs 6 2 Insert cabl
54. ny Central e Do not clean the surfaces with sandpaper Do not damage the tin coating Do not touch the contact surfaces after they have been cleaned 2 Position the cable lug or lugs on the busbar 3 Tighten the screw with a nut in a clockwise direction Connect all AC cables as illustrated above 8 7 4 AC Connection Connection with Terminal Blocks The AC cables are connected to the screw terminals A B and C Connect 3 cables each to the terminal blocks for the phases A B and C 1 Strip the cable by about 1 2 in 30 mm 2 Open the screw terminals completely Installation Manual SC500HEUS IA US_en 14 69 8 Electrical Connection No o a Plug the copper inner conductors of the cables into the screw terminals Connect the 3 AC cables line A to the terminals A Connect the 3 AC cables line B to the terminals B Connect the 3 AC cables line C to the terminals C Tighten the screw terminal using a screwdriver The required torque is 315 in lbs Check the AC connection for a possible clockwise phase sequence For this purpose hold the terminals of the phase sequence indicator onto the three phases of the AC connection in the Sunny Central The indicator shows you whether there is clockwise phase sequence Connection to busbars The AC cables are connected to the screw terminals A B and C ANSANS 70 Position the cable lug or lugs on the busbar Insert the lock washers and screws into the ho
55. out notice and shall not be responsible for any damages including indirect incidental or consequential damages caused by reliance on the material presented including but not limited to omissions typographical errors arithmetical errors or listing errors in the content material All trademarks are recognized even if these are not marked separately Missing designations do not mean that a product or brand is not a registered trademark The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by SMA America LLC and SMA Solar Technology Canada Inc is under license SMA America LLC 3801 N Havana Street Denver CO 80239 U S A SMA Solar Technology Canada Inc 2425 Matheson Blvd E 8th Floor Mississauga ON LAW 5K5 Canada Installation Manual SC500HEUS IA US_en 14 3 Important Safety Instructions SMA America LLC Important Safety Instructions SAVE THESE INSTRUCTIONS This manual contains important instructions for the following products Sunny Central 500HE US This manual must be followed during installation and maintenance The product is designed and tested according to international safety requirements but as with all electrical and electronic equipment certain precautions must be observed when installing and or operating the product To reduce the risk of personal injury and to ensure the safe installation and operation of the product you must carefully read
56. per phase For AC cable arrangement 1 the distance between the cables should be twice the diameter of of a single cable NOTICE The maximum AC cable length between Disconnect Unit and transformer has to be lower than 49 ft 15 m ROOSA GOOOL Figure 2 AC cable arrangement 2 Number of cables 3 4 5 6 per phase AC cable If possible AC cable If possible AC arrangement 1 AC cable arrangement 1 cable arrangement 2 arrangement 3 else else AC cable AC cable arrangement 1 arrangement 1 ALBXCXOBXA AKBXCXOLBY AYBYCKE BA Figure 3 AC cable arrangement 3 66 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 8 Electrical Connection 8 7 3 Connecting AC cables to busbars A DANGER High voltages are present in the live components of the low voltage grid Death resulting from burning and electric shock e Pay close attention to all safety precaution measures regarding the low voltage grid Switch off the AC and DC circuit breaker and secure it against accidental switching on e Ensure that no voltage is present Danger of fire caused by improper connection to the power distribution grid e To reduce the risk of fire do not connect to an AC load center circuit breaker panel having multi wire branch circuits connected Danger of fire caused by different length of AC cables Danger of fire e Different cable lengths within one phase result in ove
57. plication to Energy Supply Company Before you commission the Sunny Central inform the relevant energy provider You must submit the following information e Date of commissioning e Technical data of the plant 9 1 Visual Inspection of the Sunny Central Ensure that all AC and DC voltages are not connected to the inverter Wait 8 minutes for all internal power supplies to discharge Check voltage in order to ensure that all voltages have been removed RON gt Inspect all large power cables and bus connections throughout the inverter to verify that they are tight Verify that all PV wires are connected with the proper polarity Verify that all PV wires are tightened to the proper torque specification Verify that the PV ground wires are connected to ground and are isolated from PV or PV Verify that the AC phase wires are connected correctly Verify that all AC phase wires are tightened to the proper torque specification oD OND Verify that the AC ground wire is connected correctly 11 Inspect the interior of the Control and Interface Cabinet and the Power Cabinet to insure that they are free of any tools foreign objects water debris or documents 12 Ensure that the area around the Sunny Central is clear of any tools foreign objects or debris 13 Check the AC connection for a possible clockwise phase sequence For this purpose hold the terminals of the phase sequence indicator onto the three phases of the AC con
58. r upon receiving your Sunny Central and who to turn to if your Sunny Central is damaged Refer to the technical description Unpacking the Sunny Central 500HE US for a detailed step by step instruction The description is fixed at the shipping container 4 1 Unpacking and Inspection All SMA Sunny Centrals are thoroughly checked before they are packaged and shipped Although they are shipped in sturdy packaging damage can still occur during shipping and delivery It is important to carefully inspect the shipping container and contents prior to installation If you detect any external damage after unpacking report the damage immediately to your SMA dealer and shipping company that delivered the unit If it becomes necessary to return the Sunny Central use the original packing material If you need assistance with a damaged Sunny Central contact your SMA dealer or SMA America Contact information for SMA America is provided in chapter 12 4 2 Scope of Delivery Position Description Sunny Central Condensate drain Installation Guide User Manual Circuit Diagram Test Report Torx screwdriver Ventilation plate with air filters for installation in the base of the Sunny Central Non woven abrasive Allen key DIO TY IOISO F gt Separate DC fuses option Installation Manual SC500HEUS IA US_en 14 21 4 Unpacking SMA America LLC 4 3 Storage NOTICE Improper stora
59. ral to the public grid and the PV modules When placing your order these options will enable you to adapt the Sunny Central connection area to the characteristics of the PV modules and the grid This section demonstrates the various connection options 8 4 1 DC Fuses The Sunny Central must be equipped with 6 to 9 DC fuses All other numbers of fuses contradict UL listing of the inverter system Every fuse has a separate rail to which 1 or 2 DC strings can be connected The fuse characteristics have to match the following to ensure UL listing of the inverter system e Supplementary cartridge fuses suitable for branch circuit protection e Type LDC manufactured by Littelfuse e Provided for branch circuit protection of DC field wiring e Rated 600 Vac Vdc e Rated 130 C e Maximum current rating of 450 A no minimum limit Intermixing of different fuse ratings is possible Such fuse types will be installed as defined in the option code upon order The Sunny Central can be delivered without fuses which are allowed to be provided in the end installation Such fuses can be ordered via SMA Service NOTICE The DC fuse installation on site must be done by SMA Service only 8 4 2 Grounding the PV modules Depending on the configuration option you can connect positive or negative grounded PV modules to the Sunny Central 8 4 3 Cable connection You can connect all AC and DC cables to terminals or to busbars Use cable lugs to connec
60. rheating of the shortest cable e Connect all AC cables with the same length per phase Connecting AC cables to busbars with screw terminals C G B a i D A rs Installation Manual SC500HEUS IA US_en 14 67 8 Electrical Connection SMA America LLC Position Description Nut size M 12 Spring washer Washer Cable lug Busbar Screw head size M12 nmI7NHNDb Strip the cable by about 1 UA in 30 mm 2 Open the set screw of the terminal completely Plug the copper and aluminum conductor of the cable into the screw terminal and tighten it with the specified torque If necessary tighten the screw terminal to the busbar again using a torque wrench with a torque of 27 ft lbs 37 Nm Connecting AC cables to busbars with cable lugs Position Description A Screw head size M 12 B Spring washer 68 SC500HEUS IA US_en 14 Installation Manua SMA America LLC 8 Electrical Connection Position Description C Washer Cable lug E Busbar F Nut size M 12 Connecting procedure 1 NOTICE Oxide layers on contact surfaces after transport and storing of the Disconnect Unit Yield loss resulting due to poor electrical conductivity Before connecting the cables clean the contact surfaces e Use only the non woven abrasive delivered with the Sun
61. rill holes 5 3 Transporting the Sunny Central Remove the kick plates before transporting the Sunny Central see section 5 5 1 Sunny Central may tip over if improperly transported Bruises and fractures e Pay attention to the center of gravity of the Sunny Central see section 5 3 1 e Transport the Sunny Central only as described in this manual e Any equipment used for the transport of the Sunny Central must be suitable for the weight of the Sunny Central e Do not tilt the Sunny Central during transport 5 3 1 Center of Gravity of the Sunny Central The center of gravity of the Sunny Central is marked on the packaging with the symbol on the right The center of gravity is not in the middle of the ais Sunny Central Position of Center of Gravity measured from left front corner of inverter NI horizontal 47 65 in N vertical 23 62 in depth 18 50 in 28 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 5 Transport and Installation 5 3 2 Equipment for Transport Any equipment used for the transport of the Sunny Central must be suitable for the weight of the Sunny Central The following equipment can be used for the transport of the Sunny Central Crane with an according fork for the transport of the Sunny Central e Forklift or pallet truck e Crane and hoisting steele wire rope hoisting hooks and steel loops Example of Transporting the Sunny Central Cabinet Installation
62. t all safety features are accessible at all times and that their correct operation is tested regularly Cuts and scratches due to sharp edges inside the Sunny Central e When working on the Sunny Central wear protective gloves NOTICE The components in the Sunny Central can be damaged by electrostatic discharge When working on the Sunny Central and when handling the components observe all ESD safety regulations e Discharge electrostatic charge by touching the grounded Sunny Central enclosure Only then is it safe to touch any electronic components i Storage of handbooks Keep this documentation in the immediate vicinity of the Sunny Central It must be accessible to service and maintenance personnel at any time Do not store the documentation or any other papers in the Sunny Central Installation Manual SC500HEUS IA US_en 14 17 3 The Sunny Central SMA America LLC 3 The Sunny Central In this section you will see how to identify the Sunny Central A short description of the Sunny Central s design and functions are given here 3 1 System Overview The Sunny Central is an inverter for indoor and outdoor The enclosure is made of stainless steel and aluminum which conforms to the NEMA 3R protection rating NEMA 3R means that the Sunny Central is protected against dust and water when it is closed The Sunny Central is protected from salt fog pariculars it can be operated in chemically aggressive e
63. t the cables to the busbars Installation Manual SC500HEUS IA US_en 14 57 8 Electrical Connection SMA America LLC 8 4 4 Cable requirements for DC AC and PE connection O Connect all cable using copper or aluminium conductors that are suitable for temperatures of 194 F 90 C and in accordiance with National Electrical Code ANSI NFPA 70 O Use the screw terminal or the screws included in scope of delivery for mounting cable lugs only Cable lugs have to be UL listed compression lugs with two securement holes 1 2 in 13 mm in diameter and a distance between the holes of 1 Zi in 44 mm Both holes have to be utilized in installation The width of the lugs has to exceed the washer diameter of 1 1 4 in 32 mm to ensure defined torque values listed below The screw terminals can be connected with 1 or 2 conductors each DI Use the screw terminals or cable lugs to connect the DC cables O For individual cable sizing refer to article National Electrical Code 310 Connection method Cable size Torque Cable fixing in screw terminal 4 AWG to 600 kcmil 41 5 ft lbs 56 5 Nm 25 mm to 304 mm Cable lug aluminum on 4AWG to 800 kcmil 27 5 ft lbs 37 Nm copper busbar 25 mm to 405 mm Cable lug copper on 4 AWG to 800 kcmil 44 5 ft lbs 60 Nm copper busbar 25 mm to 405 mm Screw terminals are pre mounted upon delivery If they have to be fixed again on the copper busbar use a torque of 27
64. te Place the rubber gaskets on the cable Install the rubber gasket on the cable in the opening of the gasket plate Place the 3 screws on the side of the gasket plate and tighten them in a clockwise direction Place the 4 screws on top of the gasket plate and tighten them in a clockwise direction in the base of the Control Cabinet Remove the insulation of the cable by I 2 4 in 60 mm approx 2 4 in 60 mm resti Uncover the wires about 1 8 in 45 mm l Strip the wires about 0 2 in 5 mm e 5 mm Insert the screwdriver into the rectangular opening of the terminal and press it WI The terminal is open _ em la alate xl Connect the AC wire line A to the terminal 1 Connect the AC wire line B to the terminal 2 Connect the AC wire line C to the terminal 3 Connect the grounding cable to the terminal 4 Pull the screwdriver out of the terminal Installation Manual SC500HEUS IA US_en 14 51 8 Electrical Connection SMA America LLC 18 Pull the insulated conductor to check that it is securely in place MI The insulated conductors of the external power supply are connected Lal Ha fd A 19 Fastenthe cable to the cable anchoring rail using a Ta cable tie SLB MI The cable is protected against pulling out wa A Wt 20 Pull the plug out of the terminal block marked with 200 V 21 Insert the plug into
65. tral 1 Apply the roof to the top of the Sunny Central Keep the front edge of the roof up Fasten the PE cable to the fixing point on top of the Sunny Central 2 Move the roof forward to apply it to the guid rail Move the front edge of the roof down 32 SC500HEUS IA US_en 14 Installation Manual SMA America LLC 5 Transport and Installation 3 Assemble the left air filter by pushing its upper side forward and up 4 Tighten the screws A of the left air filter 5 Assemble the right air filter by pushing its upper side forward and up Installation Manual SC500HEUS IA US_en 14 33 5 Transport and Installation SMA America LLC 6 Tighten the screws A of the right air filter 5 5 Installing the Sunny Central 5 5 1 Removing the Kick Plates from the Sunny Central Kick plates are located on the front and back of the Sunny Central The position of the kick plates is shown in the figure below The kick plates are mounted on the cabinets of the Sunny Central with screws Position Description A Power Cabinet front side and rear side 4 screws in total 2 screws on the right and 2 screws on the left B Control Cabinet front side and rear side 7 screws in total 3 screws on the right 1 screw in the middle 3 screws on the left 1 Remove the screws of the kick plates on the front and on the rear of the Sunny Central using a torx screwdriver 34 SCSOOHEUSIA US_en 14

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