To Next Page

To Previous Page

Immediately connect the cable end to the terminal

IMPORTANT!Repeat the procedure if the cable has been disconnected and is to be re-

connected.

Grid connection

of inverter or

dummy device

IMPORTANT! To ensure a proper ground connection, all three PE grounding terminals

must be tightened to the specified torque when the inverter is installed.

IMPORTANT! Form loops with the AC cables when connecting them to the AC terminals.

When securing the AC cables using a metric screw joint, ensure that the loops do not pro-

trude beyond the connection area. Otherwise, under certain circumstances it may no

longer be possible to close the inverter.

IMPORTANT!

- Ensure that the grid neutral conductor is grounded. This may not be the case for IT

grids (insulated grids with no grounding); it will then not be possible to use the inverter.

- In order to use the inverter, the neutral conductor must be connected.

A neutral conductor that is too small may adversely affect the grid power feed opera-

tion of the inverter. The neutral conductor must therefore be the same size as the other

live conductors.

IMPORTANT! The PE ground conductor of the AC cable must be laid in such a way that it

is the last to be disconnected in the event that the strain-relief device should fail.

This can be ensured, for example, by making it somewhat longer and by laying it in a loop.

If AC cables are laid over the shaft of the DC main switch or across the connection block

of the DC main switch, they may be damaged when the inverter is swung in, or they may

even prevent the inverter from being swung in.

IMPORTANT! Do not lay AC cables over the shaft of the DC main switch or across the con-

nection block of the DC main switch.

Fronius Primo User Manual

Other manuals for Fronius Primo