Operation and installation manual
Page 55 of 96
(PVI-STRINGCOMB (-S, -MC, -S-MC) - Rev:1.0)
9.3.13 Connection of the Negative poles of the strings (-) [for max 10
strings]
The positive of pole of the strings must be connected to the terminal board
indicated by the label “STRING NEGATIVE”.
Figure 9-20: Cable gland for negative strings connection
Insert the special screwdriver provided (Figure 9-19) into the clamp (pushing
it home!) in order to completely open the contact. Push the wire (negative
pole) coming from the string through the cable gland provided (Figure 9-20)
and connect it individually to the terminal. Then remove the screwdriver and
pull on the wire to check that it is correctly inserted. Repeat the operation for
all the other wires.
Connect all the negative wires according to the same logical
sequence used for the positive ones, S1- with F11, S2- with F12,
…., S10- with F20, where F11, F12, ..., F20 indicate the position of
the fuses (on the board for positive strings, Figure 6-4 “B”, F11 is
the first on the left at the output bar to negative pole while F20 is the
last one on the right).
Check that the LED indicated in the figure is flashing (in case of
problems, see Chapter §13)
