Connecting Solar Module Strings To The Fronius String Control 100/12; Safety; Notes For Connecting Solar Module Strings To The Fronius String Control 100/12 - Fronius String Control 100/12 Operating Instructions Manual

Connecting Solar Module Strings to the Fronius
String Control 100/12

Safety

Notes for Con-
necting Solar
Module Strings to
the Fronius String
Control 100/12
Recommended sequence for inserting and connecting DC cables
66
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules.
- Make sure that the input and output sides in front of the device are not
charged before connecting anything.
- Any and all connections should only be carried out by qualified electricians.
- Follow the safety rules in these operating instructions.
NOTE! Only use a DC cable with the correct polarity at
the terminals for DC cable 'IN' and at the terminals with
fuse holders for DC cable 'IN'.
NOTE! To ensure problem-free DC cable connections to the terminals, the length
of the DC cables should be no less than 330 mm (measured from the inside bot-
tom edge of the Fronius String Control 100/12):
NOTE! Observe the sequence when inserting and connecting DC cables: from
bottom to top and from the inside outwards.
12 9
11 10 8
5 4
3 2 1
NOTE! When connecting fewer than 12 solar module strings, we recommend as-
signing the DC cables to the measuring channels as equally as possible.
For example: When connecting 8 solar module strings, connect 4 DC cables per
measuring channel. If possible, leave individual terminals free between the DC
cables.
NOTE! When connecting solar modules with varying power tolerance, we recom-
mend distributing the power to the measuring channels as equally as possible.
6
7 9 10
5 6
11
12
7 8
1 2 3 4