Class II double insulation
High Voltage
DANGER
E469960
Photovoltaic Rapid Shutdown System Equipment, QIJW
Ver. 1 July 14, 2022
PN: 002-00100-00 REV 1.0
RSS Transmitter with Pure Signal Technology (PST) - Quick Start Guide
Pg 3 of 3
7. 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/
LED Status
Description
Action
Red ON, Green Flashing
Leader (transmitter 1)
None; normal operation
Red OFF, Green flashing
Follower (transmitters 2-10)
None, normal operation
Red ON, Green OFF
Error, not transmitting signal
Remove power from all transmitters.
Verify all wiring is correct. Verify torque.
5. LED Status
Issue
Check
Low string voltage
The TS4-A-F produces 0.6V per unit when the RSS Signal is not present. If the string Voc
is abnormally low (<100 volts), verify each RSSx has power and that the IN and OUT
connections are correct (if using multiple RSSx), and that the Cores are properly installed.
Lower voltage than expected
One or more TS4s may not be connected properly. Use the
RSS Signal Detector
(not included) to verify the TS4 is receiving the keep alive signal.
No output voltage at the string
Verify all TS4s are connected to the modules and that all TS4s are connected to each
other.
6. Troubleshooting
!
CAUTION – For personal safety always wear and use appropriate PPE.
3. Pre-Power Checklist
Check Item
Acceptance Criteria
TS4 Installation
All PV modules are connected to a TS4-A-F/TS4-A-2F.
Core directionality
All Cores are facing the correct position (Black side towards the PV array).
Conductor signaling
Only the negative conductors are run through the RSS cores and no more than 10
conductors per Core.
Distance
The total round-trip distance of the PV conductors is <300m or <500m if Cores are
installed in series on the same strings for long distance applications.
Series transmitter wiring The transmitters are wired correctly and connections are secure.
Power supply
Power supply is wired correctly, and connections are secure.
Conduit connections
All conduit attachments are sealed and bonded, where necessary.
Workmanship
Cable ties are secured evenly, have no sharp edges, the enclosure and installation
area are left clean and accessible.
Voltage check
Check string voltage prior to powering up the system. Without the keep alive signal
the string voltage should equal 0.6V x # of PV modules in the string.
4. Commissioning
1.
Follow the normal commissioning steps of the inverter(s) installed. Note - the RSS Transmitter must be
connected to the same AC branch circuit as the inverter to meet NEC 690.12 Rapid Shutdown requirements. By
connecting the inverter(s) to the grid, power is supplied to the RSS transmitter, turning it on.
2.
The RSS Transmitter should now be powered and signaling the array to pass energy. Each string should now
have full voltage to the inverter.
!
CAUTION – For personal safety always wear and use appropriate PPE.
