User Manual For DATCOM Components

5
Safety Instruc-
tions
SolarNet - Installing System Components
NOTE! Follow general ESD precautions when handling plug-in
cards.
WARNING! An electrical shock can be fatal. Danger from
mains voltage and DC voltage from solar modules.
- The connection area should only be opened by a licensed
electrician.
- The separate power module area should only be discon-
nected from the connection area after first being discon-
nected from the mains power.
- The separate power module area should only be opened
by Fronius-trained service personnel.
Before making any connections, make sure that the AC and DC
sides are disconnected from the inverter, e.g.:
- Switch off the AC automatic circuit breaker for the inverter
- Cover solar modules
Please observe the 5 safety rules.
WARNING! An electrical shock can be fatal. Danger from
residual voltage from capacitors.
You must wait until the capacitors have discharged. Discharge
takes 5 minutes.
Com Cards Com cards provide the data link from the Fronius IG or Fronius IG Plus to
the SolarNet and to the associated DATCOM components. In addition,
Com cards also offer galvanic isolation between the photovoltaic system
and the inverters providing additional safety. Each inverter connected to
SolarNet must be equipped with Com cards.
NOTE Every Fronius IG or Fronius IG Plus that is to be monitored
requires a Com card, even if the system only contains one Fronius
IG or Fronius IG Plus. In this case, the Com card serves as a link
between the internal network of the Fronius IG or Fronius IG Plus
and the SolarNet interface of the Datalogger.