PV Systems equipped with one or more Tigo Cloud Connect can initiate module level shutdown via an external "mushroom" shut-off button. The button can be any off the shelf Normally Open (NO) button. However, for a shutoff button to work on systems with multiple Cloud Connects, each Cloud Connect must be connected to the shutoff button on its own individual circuit/relay.
Cloud Connects must be wired separately to a mushroom button on separate circuits. DO NOT wire cloud connects in a daisy-chain/in series to a single shutoff button.
In order to turn a system's modules back on after a shutdown from a shutoff button, first return the button to its original position, and then use the Cloud Connect LCD screen to navigate to "2.2 Modules ON" to re-activate the system.
Refer to the following article for more information on Cloud Connect LCD interface options: https://support.tigoenergy.com/hc/en-us/articles/208746708-Cloud-Connect-MMU-Menu-Reference