Design Essentials for TS4-F/-A-F

Designing a system to meet rapid shutdown with TS4-F/TS4-A-F is easy 👌

How it Works:

When your RSS transmitter is powered on, the RSS core in each RSS transmitter sends a pulsed signal to the TS4-F/A-F units in the system over DC wiring. 

When your RSS transmitter is powered off, this signal disappears, and each TS4-F/A-F unit goes into shutdown mode, reducing voltage within the array to under 80V within 30 seconds.

How to Start Your Successful Design

1. Add one TS4-F/TS4-A-F to each module in your system.
2. Purchase RSS-integrated inverters from Tigo's Preferred Partners (such as the SMA Core1-41, Solectria PVI 50/60, Chint KTL 50/60, Fronius Symo Advanced, others) or use one RSS Transmitter Core for each 10 strings

Powering your RSS Transmitter

Each RSS transmitter is powered via 12V DC input.

The RSS transmitter can ship from Tigo and its distributors with either a 120/240V AC power supply or 277/480V power supply. Choose what works best for your application, or use an integrated inverter. 

Other Design Considerations

• For systems using external RSS transmitters, each RSS core can communicate with up to 10 strings, and each RSS transmitter can be installed with up to 2 RSS cores.
  
  • e.g. For a system with 1980 modules in 110 strings of 18, the minimum quantity of RSS transmitters the system would require:
    • 5x dual-core RSS transmitters (20 strings each)
    • 1x single-core RSS transmitter (10 strings)
• The entire DC loop for each string, from the positive terminal on the inverter, out through the array, to the negative terminal on the inverter, can be up to 1000 feet (300 meters).

For more information, check out the installation manual by clicking here.

If you have design questions, feel free to email training@tigoenergy.com.

And last but not least, if you are done designing, congratulations! The next step is installation and commissioning.