Parallel mode versions without AFD
Ensure switch a01 situated on the communication card 09 is set to the PAR position.
Included in the TRIO packaging are two copper jumpers to be use for paralleling of input channels.
• Use the rst jumper to connect the two terminal blocks labelled as –TB1 –TB2 (negative
polarity of MPPT1 and MPPT2).
• Use the second jumper to connect the two terminal blocks labelled as +TB1 +TB2 (positive
polarity of MPPT1 and MPPT2)
NOTE! A removable transparent cover prevents access to live parts on the upper DC side of
the wiring box. In order to connect the wires, remove the four screws in place and remove
the cover.
Depending on the brand of the terminal block (Chengdu Reliance or ABB) mounted inside the
string combiner box, two different type of jumpers are provided in the product’s accessory bag.
Type A (Chengdu Reliance) Type B (ABB)
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