sol-ark O900-80V Installation Manual

Optimization rapid shutdown system

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L I B R A R Y

INSTALLATION MANUAL

Sol-Ark Optimization Rapid Shutdown System

O900-80V

TX 12K-A

V2.0

July, 2023

Sol-Ark

Library

sol-ark.com

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Summary of Contents for sol-ark O900-80V

Page 1 L I B R A R Y INSTALLATION MANUAL Sol-Ark Optimization Rapid Shutdown System O900-80V TX 12K-A V2.0 July, 2023 Sol-Ark Library Copyright © 2023 Sol-Ark | Portable Solar LLC sol-ark.com Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 3 CONSEQUENTIAL, OR INCIDENTAL, ARISING OUT OF THE USE OF SUCH INFORMATION. USE OF SUCH INFORMATION SHALL BE ENTIRELY AT THE USER'S RISK. Sol-Ark is not responsible for system failure, damage or injury resulting from improper installation of its products. Information in this manual is subject to change without notice.
Page 4 • This manual provides detailed instructions on the product functions, installation process, and operation of the O900-80V in conjunction with the PLC TX 12K-A transmitter. Prior to installation and use, please ensure a comprehensive understanding of this product. •...
Page 5: Table Of Contents
To test system functionality with the TX 12K-A transmitter ..................... 21 TROUBLESHOOTING ................................22 TX 12K-A transmitter does not turn on: ............................. 22 A string has no voltage: ..................................22 An O900-80V has no voltage: ............................... 22 Technical Support ....................................22 TECHNICAL SPECIFICATIONS ............................. 23 O900-80V Spec Sheet ..................................23 TX 12K-A Spec Sheet ..................................
Page 6: System Overview
Shutdown System (PVRSS) that is UL listed and compliant with NEC regulations for both new and existing PV systems. By deactivating the TX 12K-A transmitter, the O900-80V receivers will reduce the voltage to 0.9 VDC per O900-80V and bring the string voltage below 30 VDC.
Page 7: Products
Maximum Power Point Tracking (MPPT) energy optimization. Each PV module can be connected to the O900-80V to ensure compliance with UL 1741 and NEC 690.12 requirements for Rapid Photovoltaic Shutdown (RSD). The O900-80V compensates for shaded panels to maintain optimal power output.
Page 8: Tx 12K-A
Sol-Ark TX 12K-A transmitters are part of the Rapid Shutdown Line, located inside Sol-Ark 12K-2P-N inverters. When paired with the Sol-Ark O900-80V or any other SunSpec-RSD certified device, the TX 12K-A transmitters use Power Line Communication (PLC) to provide the necessary "permission to operate" signal, ensuring compliance with Rapid Shutdown requirements outlined in the 2017 and 2020 NEC 690.12 specifications.
Page 9: Installation Notes
O900-80V. Once you have installed the TX 12K-A transmitter into the Sol-Ark 12K-2P-N inverter, it is essential to also connect a NEC 690.12 (C) approved "emergency stop" RSS quick disconnect to pins 11 and 12 on the sensor connection board of the Sol-Ark 12K-2P-N.
Page 10: Installing The Optimizer O900-80V
Installation Map Card on our official Sol-Ark website: www.sol-ark.com. Each Sol-Ark O900-80V is equipped with a labeled barcode and unique serial number. Remove the label from each optimizer and affix it to the designated spot on the installation map.
Page 11 Ensure that the O900-80V module is securely fastened to the solar panel frame. The heat sink side should face away from the solar module, and make sure that the wires and connectors of the O900-80V do not come into contact with the roof surface.
Page 12 STEP 3: Connect the shorter cables to the PV modules. Connect the input terminals of each O900-80V module to the positive and negative wires respectively of each of the solar panels. To prevent damage to the O900-80V units, ensure that you connect the shorter input cables from the O900-80V to the PV modules before connecting them to the remaining O900-80V units in the string series.
Page 13 Mounting the O900-80V on specialized solar modules To mount the O900-80V on a frameless PV module, screws, and nuts (not included) can be used in addition to the support clip. Prior to installation, ensure that the solar panel has a hole for this purpose or the mounting rail.
Page 14: Installation Of The Transmitter Tx 12K-A
50mm standoff Power cable for the TX 12K-A If the TX 12K-A transmitter is already installed in your Sol-Ark 12K-2P-N inverter, please proceed to page 20 to continue with the installation of the rapid shutdown label on the system. Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 15: Installation Procedure
Installation procedure The PLC TX 12K-A transmitter will be installed in the wiring area of the Sol-Ark 12K-2P-N inverter. By default, the inverter comes with a pre-installed "CON board" that facilitates communication with other components of the inverter. To install the TX 12K-A, the CON board is replaced with the new TX 12K-A board.
Page 16 • Remove the three (3) standoffs of 50mm and 60mm positioned at the top and bottom of the communications board. • Take out the M5 screw located at the bottom left corner. Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 17 Utilize the four (4) previously removed M3 screws (M1, M2, M3, and M4) to secure the connections of the MPPTs connectors. Be careful not to exceed a maximum torque of 4 in-lbs. Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 18 Unscrew and remove the six (6) screws at the ends of the cover. To prevent damage to the connectors, slide the top cover of the inverter to the side. This cover houses three (3) ribbon cables responsible for powering the LCD. Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 19 Connectors and ribbon cables Power cord connectors The TX 12K-A board will activate once the battery terminals reach 48V, so it is important to ensure that the battery breaker is in the ON position. Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 20 Next, install the plastic cover in the wiring area of the Sol-Ark 12K-2P-N. After installing the TX 12K-A transmitter, connect a rapid shutdown device to the Sol-Ark 12K-2P-N. Ensure easy access to the emergency stop button and place the emergency stop label within 1m (3ft) of the device. Follow local codes.
Page 21: Comissioning Tests
The PVRSS label is within three (3) feet of the E-Stop switch or another initiating device. To power up the TX 12K-A transmitter, the Sol-Ark 12K-2P-N must be powered up by battery and the TX 12K-A board will automatically power up. Using a multimeter, confirm that all strings carry full voltage at the inverter terminals.
Page 22: Troubleshooting
If the O900-80V optimizer does not output 0.9VDC when disconnected from the TX 12K-A transmitter: If the Power off the system for 1 minute, then turn it back on and measure the O900-80V voltage (should be 0.9V). If still 0V, disconnect the solar panel and check its Voc (should be at least 18V). If not, replace the panel and retest.
Page 23: Technical Specifications
NEMA Type 6P / IP68 FEATURES Power Optimization Yes (MPPT) Communication Signal Power Line Communication (P LC) Maximum number of PV modules per O900-80V MLPE Over-Temperature Protection Warranty 25 years STANDARDS COMPLIANCE Photovoltaic Rapid Shutdown System NEC 2017 (690.12), NEC 2020 (690.12) Safety Compliance UL 1741, CSA 22.2 No.
Page 24: Tx 12K-A Spec Sheet
On-board Power Supply (Battery required, see TX 12K-A Quick Installation Guide for more details). • External 48VDC power supply (for grid-tied) • TX 12K-A installed inside a Sol-Ark 12K-2P-N Installation using on-board power supply from battery bank Copyright © 2023 Sol-Ark | Portable Solar LLC...
Page 25: Warranty
This must be indicated on the invoice, bill of sale from your installer. This warranty applies to the original purchaser of the Sol-Ark product and is transferable only if the product remains installed in the original place of use. Call Sol-Ark to let us know if you are selling your home and tell us the name and contact information of the new owner.

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Tx 12k-a