Tigo TS4-A-F Installation Manual
With rapid shutdown system (rss) transmitters
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Summary of Contents for Tigo TS4-A-F
- Page 1 TS4-A-F/2F with Rapid Shutdown System (RSS) Transmitters Installation Manual Visit the Tigo Energy Help Center for comprehensive videos, articles, and other resources for all Tigo products.
- Page 2 TIGO. THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF, OR MODIFY ANY CONTRACT BETWEEN, THE PARTIES. In no event will Tigo be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental, exemplary, reliance...
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Page 3: Table Of Contents
Contents Overview ............................1 This Manual ..........................1 Important Safety Instructions ......................2 PV Conductor Layout and RSS Signal Integrity ................. 5 Required Practices........................5 Install TS4s ........................... 6 Install Transmitters ........................10 Install an Enclosure ........................10 Connect Power Supplies......................12 Connect a Core ........................ - Page 4 Specifications ..........................28 Warranty ............................ 28 Support ............................28 Appendix A – Crosstalk ........................ 29 What Is Crosstalk? ........................29 What Causes Crosstalk? ......................29...
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Page 5: Overview
0.6 V per TS4 resulting in a string voltage of less than 30 V. • A TS4-A-F can control power production from one module while a TS4-A-2F controls two modules. They are otherwise identical in function and may be used interchangeably in a string. -
Page 6: Important Safety Instructions
National Electric Code (NEC) ANSI/NFPA 70 and/or local electrical codes. When the photovoltaic array is exposed to light, it supplies a DC voltage to the Tigo TS4 units and the output voltage may be as high as the PV module open circuit voltage (V ) when connected to the module. - Page 7 Code national de l'électricité (NEC) ANSI/NFPA 70 et/ou les codes électriques locaux. Lorsque le générateur photovoltaïque est exposé à la lumière, il fournit une tension continue aux unités Tigo TS4 et la tension de sortie peut être aussi élevée que la tension de TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com...
- Page 8 TS4 attachées. • TS4-A-F et TS4-A-2F sont expédiés en position OFF et mesureront 0,6 V à la sortie lorsque le signal d'entretien n'est pas présent. L'installation doit être effectuée uniquement par des professionnels qualifiés. Tigo n'assume •...
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Page 9: Pv Conductor Layout And Rss Signal Integrity
To maintain RSS signal strength and integrity: Limit the round-trip (positive-to-negative) length of a PV conductor to 300 m (985 ft.). • Runs up to 500 m (1640 ft.) may be possible using two cores – contact Tigo Sales Engineering. -
Page 10: Install Ts4S
TS4-A-2F controls two modules. Each module in a string must have its own TS4-A-F or share a TS4-A-2F with another module. You may connect a TS4-A-2F to a single module if needed by connecting the unused second set of input cables. - Page 11 2. Connect the shorter TS4 input leads to the solar module. You must connect the shorter TS4 input leads to the solar modules before connecting to neighboring TS4s. Failure to do so can damage the TS4 units. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
- Page 12 2. Connect the shorter TS4 input leads to two solar modules. You must connect the shorter TS4 input leads to the solar modules before connecting to neighboring TS4s. Failure to do so can damage the TS4 units. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
- Page 13 • Disconnect individual TS4 cables to a string before disconnecting the TS4 input cables from the solar module junction box. Always assume that TS4 units are in an ON state. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
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Page 14: Install Transmitters
Install an Enclosure Transmitters are NEMA 1 (indoor) rated and require an enclosure with a 35 mm DIN rail and 12 V power supply. Tigo kits include NEMA 4-rated enclosures, transmitters, and power supplies. • Transmitter power supplies must be installed on the same AC branch circuit as the inverter. - Page 15 Install Transmitters If installing a Tigo enclosure, use the diagrams below for locating conduit openings. For 21 mm (0.75 in.) conduit: For 27 mm (1 in.) conduit: TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
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Page 16: Connect Power Supplies
1. Turn off all AC power sources. 2. Connect a ground wire to the power supply V– output terminal. Tigo power supplies include a DIN rail ground. 3. Connect AC conductors. 4. Use ferruled leads to connect 12 V output to the transmitter PWR terminals. - Page 17 Ensure standard power supplies reliably output 12 V (±2%) 1 A current and commercial power supplies reliably output 12 V (±2%) 10 A current. Fusing is recommended. Do not use a 24 V power supply designed for the Tigo CCA. Tigo power supplies meet ride-through interconnection requirements such as California’s Electric Rule 21.
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Page 18: Connect A Core
Ensure PV conductors are installed in accordance with required practices listed in the Conductor Layout and RSS Signal Integrity section of this manual. 2. Pass up to ten negative conductors through a transmitter core. To PV array To inverter TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 19: Connect Two Cores
(cannot fit 10 conductors in a single core), and in other special cases. Contact Tigo Sales Engineering for more information. To PV array To inverter TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 20: Connect Signal Wiring
Transmitter Status LEDs If connected correctly: • The leader transmitter displays a continuous red LED and a blinking green LED. • Follower transmitter LEDs blink green simultaneously with no red. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 21: Testing And Troubleshooting
Unpowered String Measurements – Safety Voltage • Powered String Measurements Crosstalk Measurements • RSS Signal Detection • Measurements Table Preparation Prepare a table for recording all test measurements similar to the following: TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 22: Unpowered String Measurements - Safety Voltage
Unpowered String Measurements – Safety Voltage A TS4-A-F/2F connected to one or two solar modules produces 0.6 V when there are no keep- alive signals. This is referred to as a safety voltage because a string will never exceed 30 V, which is safe for humans. -
Page 23: Powered String Measurements
4. If the inverter begins power production, restart the inverter’s AC side until all V measurements are complete. The open circuit string voltage (V ) can be measured only before the inverter starts producing power. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 24: Resolve Voc Errors
• Physically count the solar modules in the string and verify they match the As Built plan. Update the plan if needed. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 25: Test Current Direction
If this remedies the problem, make sure positive and negative string conductors are within 2.54 cm (1 in.) of each other. A home run conductor must be adjacent TS4 output cables as they are daisy-chained together. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... -
Page 26: Crosstalk Measurements
Crosstalk Measurements Crosstalk can interfere with the keep-alive signals received by a TS4-A-F/2F. Crosstalk should always be addressed to minimize the risk of substantial power loss, especially if one or more transmitters on an installation aren’t synchronized with the others. For more information about this kind of interference, refer to Appendix A –... - Page 27 A. 7. Power off the RSS transmitter and power up the next RSS transmitter in the sequence. Make sure only one transmitter is powered at time. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
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Page 28: Resolve Crosstalk Problems
TS4 associated with inverter A to make sure there are no issues with signal strength. Resolve Transmitter Errors RSS transmitters use Tigo Pure Signal™ technology to mitigate crosstalk by synchronizing RSS signals in a fashion that enhances signal strength. Carefully check that all transmitters are connected correctly according to the... -
Page 29: Rss Signal Detection
Testing and Troubleshooting RSS Signal Detection You can check the strength of RSS keep-alive signals with the Tigo RSS Signal Detector (Tigo Part #400-00900-00) that senses an RSS signal on a home run, at a transmitter core, or at a TS4. -
Page 30: Commissioning Checklist
±1% the total expected string safety voltage. If any string has greater or less than expected safety voltage, de-energize the system and correct the issue before continuing. • The PVRSS label is within 914 mm (3 ft.) of the Tigo E-Stop switch or other rapid shutdown initiation device. •... -
Page 31: De-Energize Rss Transmitters
4. Open all string fuses, if equipped, for all MPPTs of all affected inverters. 5. If no fuses exist, disconnect the negative MPPT input for each string of every affected inverter. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center... - Page 32 (www.tigoenergy.com/downloads) page. Warranty Download comprehensive warranty information from the Tigoenergy.com Downloads (www.tigoenergy.com/downloads) page. Support If you have any questions about installing Tigo products, please contact a Tigo sales engineering team: Australia +61 413 251-081 China +86 512 6587-4600 Europe WhatsApp...
- Page 33 Radio frequency (RF) – If a string’s home run forms a large loop, it becomes an effective transmitting and receiving antenna. This can cause crosstalk over larger distances. This kind of crosstalk is significant, yet it is also the easiest to mitigate. TS4-A-F/2F with RSS Transmitters Installation Manual | www.tigoenergy.com Help Center...
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