15
Installation and Safety Manual
Trinasmart
3. Verify the System
3.1 Wiring to Adjacent Optimizers
On the first module optimizer of the first string, locate the module designated as “A1” – in the Northwest corner of the PV
array. Locate the positive lead (has a red sleeve) next to the connector. Connect the red (+) output lead from the Module
Optimizer to the extension cabling which connects to the string combiner or directly to the inverter.
Locate the negative lead (has a blue sleeve). Connect the blue (-) output of the “A1” Trinasmart Module Optimizer to the
red (+) output wire of the next Module Optimizer (“A2”).
Connect the blue output of the Trinasmart Module Optimizer of “A2” to the red output lead of the next Module Optimizer
(“A3”).
Continue these steps for all Module Optimizers. An extension cable (not included) may be necessary if two modules are
not physically adjacent to one another.
Connect the blue (-) output wire of the last Module Optimizer to the extension cabling which connects to the string
combiner or directly to the inverter.
A Note on Grounding:
The Trinasmart Module Optimizer is enclosed in a polycarbonate (non-metallic) box that does not require
additional grounding.
3.2 Initiate Discovery and Power On
Once all of the Optimizers have been connected to their modules, return to the Management Unit and initiate the
“Discovery and Power On” command, which will also power on the Optimizers (if they not powered on already). Access
this from the MMU display by selecting “2 Control”, then “2.1 Discover/Pwr”.
The discovery process will initiate communication between the MMU and Optimizers, and verify the Optimizer IDs against
the list of Optimizer IDs in the configuration file for the system. Once the discovery process has been run, the Optimizers
will power on. At this point, the system can produce power, and the voltage from each Optimizer can be as high as the
maximum power voltage of its PV module. The discovery process will take approximately 15 minutes for each Gateway.
The MMU screen will display the status of the system during discovery:
Message
Description
“Find Gateways…”
Searching for Gateways
“Found: X/Y”
Found X Gateways out of Y total Gateways
“Gateways: OK”
Correct number of Gateways found, and all Gateways are functional
“Channel Check…”
Verifying radio channel for Gateways
“Assign X/Y”
Assigning Maximizer X out of Y total Maximizers
“Step[X/Y]: P%”
Each step corresponds to the discovery process of a Gateway (Y total
Gateways), with the percent complete indicated of each step.
The percent completed will reset each time a new Maximizer is discovered
“Found X/Y”
Found X Maximizers out of Y total; still processing
“Done X/Y”
Discovery process is finished. X Maximizers were found and assigned out of
Y Maximizer in configuration
