SolarEdge SE15K-AU Installation Manual Download Page 31

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Chapter 4: Connecting Grid and PV Strings to
the Inverter

This chapter describes how to connect the inverter to the AC grid and to the Power

Optimiser of the PV modules on the strings.

Grid Connection Guidelines

Prior to system installation, refer to the following documentation:

Three Phase Inverters for 3-Wire Grids application note at:

https://www.solaredge.com/sites/default/files/se_three_phase_inverters_for_delta_

grids.pdf

Grids Supported by SolarEdge Inverters application note at:

https://www.solaredge.com/sites/default/files/grids_supported_by_se_inverters_

europe_and_apac.pdf

Countries Supported by the SolarEdge Inverters application note (to confirm

compatibility) at:

https://www.solaredge.com/sites/default/files/se_inverters_

supported_countries.pdf

. Installing without confirmation may void the inverter

warranty.

For recommended circuit breaker size per model refer to Determining the Circuit

Breaker Size application note at

https://www.solaredge.com/sites/default/files/determining-the-circuit-breaker-

size-for-three-phase-inverters.pdf

For short-circuit currents in SolarEdge Three Phase Inverters refer to Short-Circuit

Currents in SolarEdge Three Phase Inverters application note at

https://www.solaredge.com/sites/default/files/se-short-circuit-currents-three-

phase-inverters-tech-note.pdf

NOTE

For more wiring information refer to the

SolarEdge

https://www.solaredge.com/sites/default/files/application-

note-recommended-wiring.pdf

Chapter 4: Connecting Grid and PV Strings to the Inverter

Three Phase Inverter with SetApp Configuration

Summary of Contents for SE15K-AU

Page 1: ...Installation Guide Three Phase Inverter with SetApp Configuration PN SE15K AU and SE17K AU For Australia Version 1 0...

Page 2: ...rvice names are trademarks or registered trademarks of their respective holders Patent marking notice see The general terms and conditions of delivery of SolarEdge shall apply The content of these doc...

Page 3: ...s Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver...

Page 4: ...Revision History Version 1 0 Aug 2021 Initial release Revision History 3 Three Phase Inverter with SetApp Configuration...

Page 5: ...ower Optimisers in Strings 17 Step 4 Verifying Proper Power Optimiser Connection 18 Step 5 Connecting the Strings to a Combiner Box 19 Chapter 3 Installing the Inverter 20 Package Contents 20 Identify...

Page 6: ...g and Monitoring Installation Data 51 Signaling Options 53 Appendix A Errors and Troubleshooting 55 Identifying Errors 55 Troubleshooting Communication 56 Power Optimiser Troubleshooting 57 Appendix B...

Page 7: ...nformation about safety issues Warning To reduce the risk of injury read all instructions in this document WARNING When servicing or replacing SolarEdge equipment instructions in the SolarEdge Inverte...

Page 8: ...a worst case SafeDC voltage under fault conditions 120V The worst case voltage is defined as Voc max String Length 1 1V where Voc max Maximum Voc at lowest temperature of the PV modules in the string...

Page 9: ...d support are the responsibility of the installer Damage to the inverter due to incorrect interlock installation or use of an interlock that is incompatible with the SolarEdge system will render the S...

Page 10: ...Each Power Optimiser also transmits module performance data over the DC power line to the inverter Inverter The inverter efficiently converts DC power from the modules into AC power that can be fed in...

Page 11: ...ures may also apply to modify an existing site 1 Connecting Power Optimizers in Strings page 1 2 Recording power optimiser serial numbers optional page 52 3 Mounting the inverter page 25 4 Activating...

Page 12: ...u may also need the following For Ethernet CAT6 twisted pair Ethernet cable with RJ45 connector If using a CAT6 cable spool RJ45 plug and RJ45 crimper For RS485 Four or six wire shielded twisted pair...

Page 13: ...warranty CAUTION All PV modules must be connected to a Power Optimiser CAUTION If you intend to mount the Power Optimisers directly to the module or module frame first consult the module manufacturer...

Page 14: ...maximum number of Power Optimisers in a string string length see the Power Optimiser datasheets Refer to the Designer for string length verification The Designer is available on the SolarEdge website...

Page 15: ...to its module so that their cables can be connected Make sure to use Power Optimisers that have the required output and input conductor length Completely shaded modules may cause their Power Optimise...

Page 16: ...es in a confined space such as Building integrated photovoltaic BIPV modules ventilation measures may be required to ensure that the Power Optimisers are not exceeding the maximum temperatures stated...

Page 17: ...Power Optimiser or through the mounting holes 3 Attach each Power Optimiser to the rack using M6 or M8 stainless steel bolts nuts and washers or other mounting hardware Apply torque of 9 10 N m 4 Ver...

Page 18: ...tasheets Refer to the SolarEdge Site Designer for string length verification NOTE The DC bus of each unit is separate and not shared for all units Therefore in addition to following the inverter desig...

Page 19: ...ms due to the introduction of Power Optimisers between the PV modules and the inverter the short circuit current ISC and the open circuit voltage VOC hold different meanings from those in traditional...

Page 20: ...ormation refer to https www solaredge com products installer tools designer Step 5 Connecting the Strings to a Combiner Box For connecting the strings to the DC Safety Unit with glands using a single...

Page 21: ...rical Ratings Provide the serial number when contacting SolarEdge support The serial number is also required when opening a new site in the monitoring platform Inverter Interfaces Figure 5 shows an in...

Page 22: ...h the Monitoring Platform on page 37 for more information P ON OFF switch Figure 7 ON OFF P switch ON 1 Turning this switch ON after Power Optimiser pairing starts the operation of the Power Optimiser...

Page 23: ...eased Starts pairing Pairing is indicated by all 3 LEDs blinking simultaneously LEDs LEDs three LEDs indicate by color and state on off blinking 1 flickering 2 alternating 3 different system informati...

Page 24: ...S_OK ON No S_OK OFF For detailed percentage of production refer to the following table Night mode no production OFF Flickering S_OK ON No S_OK OFF Inverter is OFF Safe DC OFF 0 OFF Blinking S_OK ON N...

Page 25: ...ON DC Safety Unit Interfaces The DC Safety Unit includes ON OFF switch For connection disconnection of the DC power from the PV strings AC conduit entries for connection of AC cable to the grid DC co...

Page 26: ...lock the switch 1 Move the switch to the lock position 2 Insert the lock through the knob opening and lock Mounting the Inverter The inverter is supplied with a mounting bracket kit Figure 10 Mountin...

Page 27: ...ommended to mount the inverter in a location protected from direct sunlight NOTE To avoid wobbly installation of the inverter on rails or stud framing use a supporting rail on the back of the DC Safet...

Page 28: ...t two holes and mount the bracket to the mounting surface Verify that the bracket is firmly attached to the mounting surface 3 Hang the inverter on the bracket See Figure 13 a Lift the inverter from t...

Page 29: ...Hang the inverter on the bracket See Figure 13 a Lift the inverter from the sides or hold it at the top and bottom Do not lift holding the DC Safety Unit as it may be damaged b Lower the inverter onto...

Page 30: ...lding electrical ground point If the Inverter is installed outdoors connect the inverter chassis with a ground wire to a properly grounded point To connect the inverter to a Ground point 1 Connect the...

Page 31: ...files se_inverters_ supported_countries pdf Installing without confirmation may void the inverter warranty For recommended circuit breaker size per model refer to Determining the Circuit Breaker Size...

Page 32: ...ter on the distribution panel 2 Turn off the ON OFF P switch of the inverter 3 Turn off the DC switch of the DC Safety Unit 4 Release the six Allen screws and carefully remove the cover of the inverte...

Page 33: ...re 18 Tighten the screws of the Terminal Blocks with a torque of 1 2 1 5 N m WARNING Always connect the Protective Earth PE wire first The Ground point of the inverter and the PE terminal of the DC Sa...

Page 34: ...system by parallel connection using an external combiner box or branch cables Installation and connection of the combiner box must be done before connecting to the inverter or DC Safety Unit NOTE Fun...

Page 35: ...already connected it 2 Turn OFF the following The ON OFF P Switch of the inverter The DC Safety Switch on the DC Safety Unit The AC circuit breaker on AC distribution panel 3 Loosen and remove the six...

Page 36: ...oo large a blade can crack the plastic housing Insert the screwdriver and press the release mechanism and open the clamp Insert the conductor into the opening and remove the screwdriver the wire is au...

Page 37: ...it by tightening the six screws with a torque of 9 0 N m 10 3 N m for plastic screws 11 Ensure proper cable entry sealing inspect the entire cable run and use standard sealants to avoid water penetra...

Page 38: ...tion Unit is turned OFF and the AC is turned OFF When configuring the communication parameters make sure that the ON OFF P switch on the inverter is OFF and the AC is turned ON Communication Options T...

Page 39: ...sufficient to provide communication services for all the devices on the bus RS485 2 Enables connection of multiple SolarEdge devices and of non SolarEdge devices over the same bus For connection inst...

Page 40: ...ed Gland Opening Functionality Cable size diameter Com 1 PG16 One small External antenna cable 2 4 mm Com 2 PG13 5 All three RS485 2 5 5 mm Figure 22 Communication Glands The communication board has a...

Page 41: ...be held responsible for any components damaged as a result of incautious cover removal Creating an Ethernet LAN Connection This communication option enables using an Ethernet connection to connect th...

Page 42: ...the rubber fitting from the gland and insert the CAT6 cable through the gland and through the gland opening in the inverter 5 Push the cable into the cut opening of the rubber fitting Figure 24 Rubber...

Page 43: ...board or if using a spool of cable connect as follows a Insert the cable through gland 1 b Remove the cable s external insulation using a crimping tool or cable cutter and expose eight wires c Insert...

Page 44: ...g platform 9 The inverter is configured by default to LAN If reconfiguration is required a Make sure the ON OFF P switch is OFF b Turn ON the DC Safety Unit c Turn ON the AC to the inverter by turning...

Page 45: ...ication wires a lightning protection device is not required The following sections describe how to physically connect the RS485 bus and how to configure the bus To connect the RS485 communication bus...

Page 46: ...creating an RS485 bus connect all B A and G pins in all inverters The following figure shows this connection schema Figure 29 Connecting the inverters in chain NOTE Do not cross connect B A and G wire...

Page 47: ...verter will serve as the leader inverter 2 Connect the leader to the monitoring platform using Ethernet refer to Creating an Ethernet LAN Connection above To configure the RS485 bus All inverters are...

Page 48: ...the Monitoring platform has been successfully established 1 If the DC Safety Unit cover is not closed close it Attach the DC Safety Unit cover and secure it by tightening the screws with a torque of...

Page 49: ...ly connect For communication options refer to Setting Up Communication with the Monitoring Platform on page 37 Before arriving at the site download SolarEdge SetApp application to your mobile device f...

Page 50: ...use the SetApp menus for commissioning and configuring the inverter settings Menus may vary in your application depending on your system type To access the Commissioning screen Do one of the following...

Page 51: ...onnection to the AC the inverter enters Wake up mode until its working voltage is reached This mode is indicated by the flickering green inverter LED When working voltage is reached the inverter enter...

Page 52: ...ection and alerts at the module string and system level Using the platform you can View the latest performance of specific components Find under performing components such as modules by comparing thei...

Page 53: ...talled power optimisers To map the locations use one of the methods described in the next sections Designer Designer recommends inverter and Power Optimiser selection per site size and enables report...

Page 54: ...the inverter and a generator the inverter extends its Voltage and frequency operating range once it receives a Power Reduction Interface PRI signal indicating that grid power is unavailable Alternati...

Page 55: ...led connection and configuration of the inverter in alternative power source mode refer to https www solaredge com sites default files se inverter support of voltage sources pdf Chapter 6 Activating C...

Page 56: ...e methods described below To identify the error type using the inverter LEDs 1 Move the ON OFF P switch to P position for 2 seconds and release it 2 Observe the LED lights and use the following table...

Page 57: ...the cable or change it from cross to straight connection No Internet connection Ping to google com failed Connect a laptop and check for internet connection If internet access is unavailable contact...

Page 58: ...d Corrective Action Pairing failed Power Optimisers are shaded If you connected the inverter to the monitoring platform retry pairing remotely during sunlight Make sure to leave the inverter ON OFF P...

Page 59: ...ted in the string and that no module outputs are connected without a Power Optimiser If the problem persists proceed to the next step Power Optimiser s malfunction 1 Disconnect the wires connecting th...

Page 60: ...ttps www solaredge com sites default files se ac surge protection device installation guide pdf DC Surge Protection Device SPD The DC SPD is a device designed to protect the inverter from Voltage spik...

Page 61: ...Dimensions of Three Phase Inverter with DC Safety Unit Appendix C Mechanical Specifications 60 Three Phase Inverter with SetApp Configuration Figure 35 Three phase inverter with bracket front side and...

Page 62: ...Dimensions of Inverter Mounting Bracket Figure 34 Dimensions of Inverter mounting bracket Three Phase Inverter with SetApp Configuration 61 Dimensions of Inverter Mounting Bracket...

Page 63: ...on the SetApp mobile application on the monitoring platform or by the LEDs if there is such an indication System configuration information including the type and number of modules connected and the nu...

Page 64: ......

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