Tigo TS4-A-O Monitoring and Rapid Shutdown User Guide

Do not install TS4s if they have been physically damaged or with damaged or substandard wiring or connectors.
Do not connect or disconnect TS4s under load.

When used as part of a PVRSS solution, all solar modules in the array must be equipped with TS4-A-O/S and TAP PVRSE with a permanent or temporary (for commissioning) CCA. Rapid shutdown is initiated upon AC power loss, which stops power to the TAP.

System Layout

The Cloud Connect Advanced (CCA) data logger/gateway connects to the cloud via Ethernet or WiFi and to other devices via Modbus.
The CCA has a wired connection to the Tigo Access Point (TAP).

The TAP communicates wirelessly with TS4-A-O/S/M MLPE via a mesh network.

TS4 Mounting Options

For frameless modules, use M8 bolts torqued to 10.2Nm

If frame thickness is ≤35mm (1.4in), install with the TS4 label facing the PV module.
No portion of the TS4 may be ≤12.7mm (.5in) from the module substrate.

Check PV module instructions for restrictions on mounting devices under the module.

Install TS4s

Save the QR/barcode sticker on a site map or string list.

Attach the TS4 to the top of the PV module frame.
- If frame thickness is ≤35mm (1.4in), install with the TS4 label facing the PV module.

Connect the short input cables to the PV module.
Connect the long output leads to the adjacent TS4.

WARNING

Always assume that TS4s are in an ON state.

Ensure cable glands face down and cannot collect moisture.
Disconnect TS4s from the array string before disconnecting from a PV module.

Always connect short input cables before connecting long output cables. Failure to do so may void the warranty.

Install a TAP
One TAP can communicate with up to 300 TS4s.

Ensure the TAP is within 10m (33ft) of a TS4.
Ensure the cable glands of the NEMA 4 TAP face down and cannot collect moisture.
Make all TAP connections to the CCA before powering on the CCA..

Locate the TAP centrally in an array.y

Connect the TAP and CCA using 4-wire or CAT5/6 cables.

Wire schedule

Shielded if running next to PV conductors
20 – 18 AWG or CAT5/6 twisted pairs
Solid core
Cable outside diameter (OD) ≤9mm (.35in)

Install a CCA
Requires Ethernet or WiFi internet access. One CCA can communicate with up to 7 TAPs and up to 900 TS4s.

Mount the CCA within a NEMA 1 (indoors) or NEMA 4 (outdoors) enclosure.
Connect TAP wires to the CCA GATEWAY port.

For systems with 2 TAPs or fewer, connect a Tigo or 3rd-party power supply with w12- 24Vdc4Vdc ±2%, 1A output.

The CCA must be on the same AC branch circuit as the inverter.
Rapid shutdown occurs when an AC disconnect (inverter or switch) disconnects power to the CCA/TAP.

Make all connections to TAPs before powering on the CCA.

For systems with 3 TAPs or more, connect a Tigo or 3rd-party power supply with 24Vdc ±2%, 1A output.

CCA LED Status Indicator

Testing/Commissioning
Download the Tigo Energy Intelligence (EI) mobile app to test and commission all TS4/TAP/CCA components. To remove a CCA post-commissioning, contact Tigo Support.

Specifications and Additional PVRSS UL 1741 Compliance Requirements

TS4-A-O/S PVRSE WARNING

THIS PHOTOVOLTAIC RAPID SHUTDOWN EQUIPMENT (PVRSE) DOES NOT PERFORM ALL OF THE FUNCTIONS OF A COMPLETE PHOTOVOLTAIC RAPID SHUTDOWN SYSTEM (PVRSS). The combination of TS4-A-O/S with TAP and CCA is certified as a UL 1741 photovoltaic rapid shutdown system (PVRSS) within a rapid shutdown time limit of 30s. The CCA data logger/gateway (P/N 346-00000-00) is powered from the same AC circuit as the rapid shutdown initiator (RSI) circuit. It provides a keep-alive signal to TS4 MLPE via a wired connection to a TAP and a wireless connection between the TAP and TS4s.
The installer must install signage complying with Section 690.56(C) of NEC NFPA 70 and indicating whether all conductors are controlled, or only conductors leaving the footprint of the array are controlled. IT IS THE RESPONSIBILITY OF THE INSTALLER TO ENSURE THAT THE COMPLETED PV SYSTEM MEETS RAPID SHUTDOWN FUNCTIONAL REQUIREMENTS. PVRSE must not be installed in readily accessible locations.

Depending on the connection method.

Not a rapid shutdown system (PVRSS) component.

Resources

Tigo Energy, Inc.
655 Campbell Technology Parkway.
Campbell, CA 95008
+1 408 402 0802

FAQs

Q: How many TS4s can one TAP communicate with?
A: One TAP can communicate with up to 300 TS4s.

Q: What is the maximum cable length for connecting the TAP and CCA?
A: The maximum cable length is 10m (33ft).

Documents / Resources

Tigo TS4-A-O Monitoring and Rapid Shutdown [pdf] User Guide
TS4-A-O Monitoring and Rapid Shutdown, TS4-A-O, Monitoring and Rapid Shutdown, and Rapid Shutdown, Rapid Shutdown

References

User Manual

Tigo TS4-A-O Monitoring and Rapid Shutdown

Specifications