20
20
C7
Connecting modules
1. Wire the modules using the connection diagram.
f
You must adhere to the specifications of the con-
nection diagram (allocation of strings, possible
switches, cable group). Faulty wiring can destroy
the inverter and/or the modules.
f
In order to keep the inductive coupling as low as
possible in the event of a lightning current, string
feed and return lines (+/-) should be run as close
together as possible (avoid looping).
f
The bending radius used for the cables may never
be less than the minimum bending radius (5x cable
diameter).
f
Do not lay or install modules at temperatures
below -5° C.
f
Keep plugs and sockets dry during assembly.
2. Lay the cable group.
3. Here, fasten the cable to the supporting profile using
UV-resistant cable ties .
4. Mount and wire the subsequent module rows.
Ensure the correct polarity.
Testing
1. Check the correct generator interconnection of the
multi-string solar generator by measuring the
open-circuit voltages of the individual strings.
2. Compare the measured values with the specifications.
Values deviating from the specifications are an indica-
tion of a wiring fault.
1 Grid
2 Inverter
3
Solar power generator
String 1
String 2
1
2
3
DANGER!
Potentially lethal voltages
f
Connecting modules in series can lead to potenti-
ally deadly voltages!
f
Do not connect the inverter for a test.
f
The solar power system may only be connected
to the public grid and activated by an authorized
electrician.
f
The technical description provided with the equip-
ment is binding with regard to the installation,
electrical connection and operation of the inverter.
ATTENTION!
f
Be sure to follow the currently valid instruction
sheet for the assembly of multi-contact plug con-
nectors. Only use approved tools for the assembly
of the cable groups. Do not deviate from the pro-
cedures described in the instruction sheet, since
otherwise, neither safety nor compliance with
the technical data can be ensured during self-
assembly.
Summary of Contents for Sunfix Bisun
Page 23: ...23 23 D Notes...
