SMA MULTICLUSTER BOX 36 User Manual
Page 34

7 Electrical Connection
SMA Solar Technology AG
34
MC_BOX_36-BE-en-20
Operating Manual
7.10 Connecting the Control, Measuring and Data Cables
The Multicluster Box transfers voltage and current measurement signals to the Sunny Island inverters
of the main cluster. These signals are transferred via the red control and measuring cables supplied.
The master in the main cluster controls the Multicluster Box via a black data cable.
Procedure:
1. Remove one cable support sleeve from the cable
entry in the bottom of the Multicluster Box.
2. Insert the three red control and measuring cables and the black data cable through the
enclosure opening into the Multicluster Box.
3. Connect the red control and measuring cables:
• Plug the control and measuring cable for the
master of the main cluster into the pin connector
Mstr./L1.
• Plug the control and measuring cable for slave
1 of the main cluster into the pin connector
Slv1./L2.
• Plug the control and measuring cable for slave
2 of the main cluster into the pin connector
Slv2./L3.
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