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Disclaimers 2 The images contained in this document are for illustrative purposes only and may vary depending on product models. Emission Compliance This equipment has been tested and found to comply with the limits applied by the local regulations. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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Emission Compliance Changes or modifications not expressly approved by the party responsible for compliance may void the user’s authority to operate the equipment. RS485 Expansion Kit Installation Guide MAN-01-00258-1.0...
Chapter 1: Overview Chapter 1: Overview The RS485 provides an additional RS485 port (sometimes referred to as RS485-E) for the inverter and the Commercial Gateway. The kit contains a module which is installed on the inverter or Commercial Gateway communication board and has a 3-pin RS485 terminal block.
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Chapter 1: Overview 6 Figure 1: A second RS485 port for multiple inverter systems to interface with Modbus devices RS485 Expansion Kit Installation Guide MAN-01-00258-1.0...
Chapter 2: Installation Chapter 2: Installation Kit Contents RS485 module Upgrade card Cable tie Software Compatibility and Check To use the RS485 module, the communication board firmware (CPU) version must be 3.1600 or higher. To check the inverter CPU version: 1.
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Chapter 2: Installation 8 NOTE Only inverters with version 3.xxxx can be upgraded. To upgrade the inverter software: 1. Disconnect the AC power to the inverter and wait 5 minutes. 2. Open the inverter cover as described in its manual. 3.
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Software Compatibility and Check 5. If upgrade is required, it starts automatically. Wait for the message "Done" to be displayed on the LCD. 6. Verify the correct version. 7. Remove the card from the inverter. RS485 Expansion Kit Installation Guide MAN-01-00258-1.0...
Chapter 2: Installation 10 Installing the RS485 Module The RS485 module can be installed in the inverter and in the Commercial Gateway. Installing the Module in the Inverter 1. Disconnect the AC power to the inverter and wait 5 minutes. 2.
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Installing the RS485 Module 6. Connect the RS485 module in its place on the communication board, as shown below. Follow these guidelines: Use the marking on the communication board to plug in the module with the correct orientation. Insert the module such that all pins are correctly positioned in the communication board socket, and no pins are left out of their socket.
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Chapter 2: Installation 12 Figure 5: RS485 3-pin terminal block 9. Insert the wire ends into the G, A and B pins shown above. Use four- or six-wire twisted pair cable for this connection. You can use any color wire for each of the A, B and G connections, as long as the same color wire is used for all A pins, the same color for all B pins and the same color for all G pins.
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Installing the RS485 Module NOTE Do not cross-connect B, A and G wires. 11. Tighten the terminal block screws. 12. Tighten the cable to the communication board using the cable tie. Figure 7: RS485 cable connected 13. Check that the wires are fully inserted and cannot be pulled out easily.
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SW7 should be terminated. Figure 8: RS485 termination DIP switches NOTE Only the first and last SolarEdge devices in the chain should be terminated. The other devices in the chain should have the termination switch OFF (down position).
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Installing the RS485 Module Installing the Module in the Commercial Gateway 1. Remove the Commercial Gateway cover: Insert a flat screwdriver into the grooves on the side of the Commercial Gateway to release the clasps and carefully remove the cover. Figure 9: Removing the Commercial Gateway cover 2.
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Chapter 2: Installation 16 Figure 10: Connecting the module to the Commercial Gateway 4. Loosen the screws of pins A(+), B(-), and G on the RS485 3- pin terminal block. 5. Insert the wire ends into the G, A and B pins shown above. Use Four- or six-wire twisted pair cable for this connection.
For other devices, the switch located on the communication board and marked SW7 should be terminated. NOTE Only the first and last SolarEdge devices in the chain should be terminated. The other inverters in the chain should have the termination switch OFF (down position).
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Chapter 2: Installation 18 The RS485 enables the connection of up to 16 RS485 buses with up to 32 devices each in a daisy chain configuration for communications in commercial installations. To configure RS485 communications of the additional bus: 1. If the master device is an inverter - verify that the inverter ON/OFF switch is OFF.
S l a v e L i s t D i s a b l e 8. Select Slave Detect. The system starts automatic detection of the SolarEdge slave devices connected to the master device. The master device should report the correct number of slaves. If it does not, refer to the RS485 troubleshooting section below.
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Use the Long slave Detect to retry connecting to slaves Analyze the Slave List to check for missing slaves, and check their connection Refer to https://www.solaredge.com/sites/default/files/troubleshooting_ undetected_RS485_devices.pdf RS485 Expansion Kit Installation Guide MAN-01-00258-1.0...
Appendix A: RS485 Specifications Appendix A: RS485 Specifications FUNCTIONAL Unit Maximum number of slave inverters connected on the RS485 Maximum number of interconnected RS485 buses Maximum number of Smart Up to 1 battery; Energy Management devices on ...
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