8
Installing Signal Cables
3.6
•
When laying out a signal cable, separate it from power cables to avoid strong signal
interference.
•
Ensure that the protective layer of the cable is inside the connector, that excess core wires
are cut off from the protection layer, that the exposed core wire is totally inserted into the
cable hole, and that the cable is connected securely.
•
Block the unused cable hole using a cap and tighten the cable gland.
•
If more than one signal cables are required, ensure that they have the same outer diameter.
COM port (COM)
Use the Staubli Y-branch connectors, MC4 positive and negative metal terminals, and DC
connectors. Those of other brands may be incompatible and cause damages, which will not be
covered under warranty.
Y-branch connectors can be used to connect multiple PV modules to a SUN2000. However, it is
recommended that the same number of PV modules be connected to each Y-branch connector.
