EG4 FlexBoss + GridBoss + Tigo CCA
- Thread starter downeycl
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SignatureSolarJess
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Hi! On page 29 of the grid boss manual it shows a diagram to wire in an optional external rsd. If you need any further assistance, you're welcome to reach out to the tech team at 903-441-2090 and we'll do all we can to help!
lkdiaz
New Member
Hi! What page 29 appears to show is how to connect an emergency stop between FlexBOSS and GridBOSS. What it doesn't show is precisely where I'm confused which is how to interface that so that we also trip a Tigo CCA. What I think we all need is that same drawing that also shows how to include the CCA.
Jess, is there a diagram showing how to wire the Tigo CCA to stop button, Gridboss, and Flexboss?
SignatureSolarJess
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Yes, looks like the CCA is going to be powered by the inverter, but I think it's best you call in to clarify the terminals you will need to use.
Can I call in and ask for you on this?
SignatureSolarJess
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I wish, I'm not in tech support anymore. The tech team can find the documentation and help you figure that out though! 
jrkd2015
New Member
Does anyone have updates on the correct wiring of the RSD and Tigo? thanks
I was wondering the same thing.
My understanding is you run SW and +12 from Gridboss to SW and +12 on the Flexboss, then run G and +24 on the Flexboss to your CCA PWR - and +.
Then when you press a RSD button on Flexboss OR RSD switch on Gridboss it would initiate a complete ESS shutdown *Assumes closed circuit comms* (battery breakers flip, Flexboss pulls power, which in turns pulls power from CCA which then kicks off a RSD shutdown on the Tigo modules (due to loss of TAP comms), also Gridboss flips breakers.
Need to test when I get everything setup but this is how I understand the setup currently.
My understanding is you run SW and +12 from Gridboss to SW and +12 on the Flexboss, then run G and +24 on the Flexboss to your CCA PWR - and +.
Then when you press a RSD button on Flexboss OR RSD switch on Gridboss it would initiate a complete ESS shutdown *Assumes closed circuit comms* (battery breakers flip, Flexboss pulls power, which in turns pulls power from CCA which then kicks off a RSD shutdown on the Tigo modules (due to loss of TAP comms), also Gridboss flips breakers.
Need to test when I get everything setup but this is how I understand the setup currently.
unexpected
New Member
Hi all, I just completed an install of the GridBoss and FlexBoss21 and can confirm that in an RSD event, the power to the +24V is disabled.
I am curious if the Tigo CCA should/can have a modbus connection to the inverter.
What would be benefit of this? Any in a single string setup?
- https://support.tigoenergy.com/hc/e...us-Connected-Devices-Inverters-Meters-Sensors
I am curious if the Tigo CCA should/can have a modbus connection to the inverter.
What would be benefit of this? Any in a single string setup?
- https://support.tigoenergy.com/hc/e...us-Connected-Devices-Inverters-Meters-Sensors
CryptoNut82
New Member
I would guess that would be fine as there is t really any current going through wire and I was going to do that but went with a security camera wire using 18/2 to run my RSD. I was limited on space in my access holes so this wire ended up being smaller than a CAT5 and worked perfect. Will be using same wire for my Tigo CCA to power/RSD
I talked to Signature Solar and they confirmed Cat5e is just fine. I ran one twisted pair into each port, no problems and I can confirm that the RSD button and switch work as expected. Plus it removes power from the Tigo CCA.
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