TS4-A-F Fire Safety Rapid Shutdown Unit Tigo RSS Transmitter User Guide
- June 9, 2024
- Tigo
Table of Contents
TS4-A-F Fire Safety Rapid Shutdown Unit Tigo RSS Transmitter
Packaging
The package contains 20 TS4-A-F units, a Quick Start Guide, and a Rapid Shutdown label. A Tigo RSS Transmitter is required for the proper operation of this rapid shutdown system.
- TS4-A-F 20
- Quick Start Guide 1
- Rapid Shutdown label 1
A Tigo RSS Transmitter is required for the proper operation of this rapid shutdown system. For more information, scan the QR code here.
General Information – Specifications
The TS4-A-F/-2F Rapid Shutdown System is designed to meet NEC 2017 & 2020 690.12 Rapid Shutdown requirements. The system consists of TS4-A-F and/or TS4-A-2F units that automatically enter rapid shutdown mode when the RSS Transmitter is switched off, and resumes energy production when power is restored to the RSS Transmitter. The system is capable of handling a maximum voltage of 80VDC, max current Imp/Isc of 20/25ADC, and max power of 700W. It is essential to install all TS4-A-F, and/or TS4-A-2F units BEFORE powering on the RSS transmitter.
- This document is for quick guidance only. For details, please refer to the TS4-A-F/-2F Installation Manual.
- Damage caused by failure to follow the contents of the TS4-A-F/-2F Installation manual is not covered by the warranty.
- Install all TS4-A-F, and/or TS4-A-2F BEFORE powering on the RSS transmitter.
- TS4-A-F, TS4-A-2F and a Tigo RSS Transmitter are a solution to meet NEC 2017 & 2020 690.12 Rapid Shutdown requirements. TS4-A-F and TS4-A-2F units automatically enter rapid shutdown mode when the RSS Transmitter is switched off, and resumes energy production when power is restored to the RSS Transmitter. Wait 30 seconds after rapid shutdown activation before disconnecting DC cables or turning off DC disconnect.
Rapid Shutdown (RSD) System Wiring Diagram
Each module in the PV system must contain a TS4-A-F or TS4-A-2F for safe
and proper operation of the PV system.
System components:
- PV inverter
- Tigo RSS Transmitter
- Tigo TS4-A-Fs (qty. will vary)
- PV modules (qty. = TS4)
Many leading inverters integrate the Tigo RSS Transmitter. Look for the Tigo Enhanced label or check for Tigo integration partners at https://www.tigoenergy.com/ul-pvrss.
TS4-A-F Overview
The TS4-A-F unit has a PV module input, an output to string, and module clips to connect to the PV module. The maximum voltage the unit can handle is 80VDC, with a max current Imp/Isc of 20/25ADC and max power of 700W. The maximum string voltage is 1000/1500VDC (connector dependent). It is essential to wear and use appropriate PPE for the application as energy is supplied to the Tigo TS4 output cables immediately upon connection to a PV module exposed to sunlight.
- PV module Input
- Negative (-) LEFT
- Positive (+) RIGHT
- Output to String
- Negative (-) LEFT
- Positive (+) RIGHT
- Module clips
- With clips on, mount to PV module
- Remove clips to reveal M8 mounting holes
Wear and USE appropriate PPE for the application.
Energy is supplied to the Tigo TS4 output cables immediately upon connection
to a PV module exposed to sunlight. Use care when handling. Do not mate
connectors from different manufacturers.
Installation
Install the TS4-A-F, and/or TS4-A-2F units BEFORE powering on the RSS
transmitter. All PV modules from the same inverter must have a TS4 connected.
Mount the TS4 to the PV module frame and dress the input conductors BEFORE
taking the module to the roof to save time. Many leading inverters integrate
the Tigo RSS Transmitter. Look for the Tigo Enhanced label or check for Tigo
integration partners at https://www.tigoenergy.com/ul-pvrss. Do not mate
connectors from different manufacturers.
Mounting the TS4 to the PV module frame and dressing the input conductors BEFORE taking the module to the roof helps save time.
Commissioning
Before commissioning the system, ensure that all PV modules are connected to a TS4-A-F/TS4-A-2F, and the Tigo RSS Transmitter is installed per the RSS Transmitter Installation Manual. If the Tigo RSS Transmitter is integrated with the PST inverter, follow the inverter manufacturer’s instructions for signal/power. Check that all connectors are securely mated and of the same type, and all conductors are properly secured throughout the array. For multi- transmitter systems, ensure that PST transmitters are installed and properly wired. A voltage check must be performed, and all pre-commissioning criteria must be met before turning on the system.
Pre-commissioning checklist
Wear and USE appropriate PPE for the application.
| **** | Check Item | Acceptance Criteria |
|---|---|---|
| TS4 installation | All PV modules are connected to a TS4-A-F/TS4-A-2F. | |
| Tigo RSS Transmitter/PST | **** |
The Tigo RSS Transmitter is installed per the RSS Transmitter Installation Manual. If inverter integrated, follow the inverter manufacturer’s instructions for signal/power.
| Voltage check| **** The TS4-A-F passes 0.6VDC when the keep-alive signal is
not present. String voltage = 0.6VDC x # of TS4 in the string
| Connections| All connectors are securely mated and of same type.
| Wire Management| All conductors are properly secured throughout the array.
ANSI/NFPA 70 wiring methods used. Multi transmitter systems have PST
transmitters installed and properly wired. Refer to RSS Transmitter
Installation manual for details.
| Workmanship| Wire management and general best practices were used.
Commissioning notes
- Each PV string will produce less than 30VDC until the RSS Transmitter is activated/powered.
- When power is provided to the RSS Transmitter the PV strings will produce full voltage under the environmental conditions.
- Commission the PV system as per best practice.
Troubleshooting
Wear and USE appropriate PPE for the application. Live voltages may be present.
Issue
| ****
Check
---|---
No string voltage
| ****
Check that all string connectors are securely connected.
Lower voltage than expected
| Check that all PV module connectors are securely connected.
Note – with no keep-alive signal the string voltage will be less than 30VDC.
Check that the RSS transmitter is powered on. If multiple transmitters are used, check that all are of the Pure Signal Technology (PST) series and are properly wired.
Inconsistent voltage reading when no signal is present| 1.Apply power to the RSS Transmitter
2.Use an RSS Signal Detector to determine if the individual TS4s are receiving the keep alive signal. If so, check the string is less than 300m.
Your Customer Service Contact
United States (HQ):
Tigo Energy, Inc.
655 Campbell Technology Pkwy
Campbell, CA 95008
EMEA Office:
Tigo Energy Italy
Srl Via Calamandrei 36 52025
Montevarchi Tuscany, Italy
Americas: +1 408 402 0802
International: 00800 2255 8446
https://support.tigoenergy.com/
