The first step of creating a Tigo TS4 system with module-level monitoring is understanding the various components and their unique features.
NOTE: For systems using TS4-A-O/-S/-M modules, a TAP connected to a CCA with Internet service is required for both system monitoring and warranty eligibility.
A complete Tigo TS4-A-O/-S/-M system requires these three components:
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TS4 MLPE (module level power electronics) TS4s are connected to a PV Module and offer various models, with different functionalities. See details at: https://www.tigoenergy.com/products |
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Tigo Access Point (TAP) TAP units are a gateway radio transceiver that wirelessly communicates with the TS4 units by reporting data to the cloud, via connection with the CCA (below), and relaying the Rapid Shut Down (RSD) command. |
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Cloud Connect Advanced (CCA) The CCA reports module-level power production and issues the Rapid Shutdown (RSD) command. Setup is completed via the Tigo Energy Intelligence (EI) App (available for iOS or Android) and internet connection (Wi-Fi or Ethernet) is required to view data on the Tigo Monitoring Portal (website), and for Warranty eligibility/coverage. |
Rapid Shut Down (RSD)
Rapid Shutdown (RSD), is an NEC requirement for any structure-mounted system (ground-mount systems are not subject to RSD compliance).
Tigo's Monitoring products require the installation of a Data Logger (CCA) and wired transceiver (TAP). When the system is powered on, the TAP will broadcast a signal to the assigned TS4 units on the system. This broadcast is sometimes referred to as a "keep-alive signal," as the units will only pass voltage when the signal is active.
When the CCA is powered off, this keep-alive signal is no longer present and the entire DC-side of the system goes into a RSD response: The Tigo MLPEs disconnect their PV-Modules from the string and the accumulated string voltage is reduced to: under 80V within 30 seconds (as per NEC requirements).
Important: Tigo's TS4 Fire Safety and Monitoring products both offer RSD compliance, but they use different technologies to deliver the signal. For this reason, they are not inter-mixable within single systems or arrays. (must be installed, independently).
Basic system design:
If you are ready to create a Bill Of Materials for your project, or pricing/quoting purposes:
Click here for the Tigo product selection tool
If you are ready to proceed with your design, note the following:
- Confirm availability of AC grid (120/220 VAC) power and Internet access at the site
- Check the TS4 cable length required for PV Modules (especially, if in landscape orientation)
1.2m length is offered for 72 cell modules (landscape orientation), - Confirm PV Module connector type - Tigo TS4 products are manufactured with Staubli MC4
- String fuse Maximum of 15 Amps (when 3 or more strings are connected to 1 MPPT)
More design-related content is available here: TS4 Design Articles
ATTENTION! The Tigo Monitoring Group is covered in detail in the Tigo TS4 Design &Installation Certification Course. All Tigo Installers and Designers are highly encouraged to take this course.