
Installation
Checklist for in-
stallation
For installation information, see the following chapters:
1Switch off the power supply before establishing a mains connection.
2Mount the Fronius Smart Meter (see Installation on page 8).
3Connect automatic circuit breakers or automatic circuit breakers and discon-
nectors (see Protective circuit on page 8).
4Connect the mains cable to the Fronius Smart Meter (see Cabling on page
9).
5Connect the output terminals of the Fronius Smart Meter to the Fronius in-
verter (see Connecting the data communication cable to the inverter on
page 9).
6If necessary, set terminating resistors (see Terminating resistors on page
11).
7Tug on each wire and plug to make sure that they are securely connected to
the terminal blocks.
8Switch on the power supply to the Fronius Smart Meter.
9Check the firmware version of the Fronius inverter. To ensure compatibility
between the inverter and the Fronius Smart Meter, the software must always
be kept up to date. The update can be started via the inverter web page or
using Solar.web.
10 If several Fronius Smart Meters are installed in the system, set the address
(see "Setting the address" under Setting the address of the Fronius Smart
Meter on page 17).
11 Configure and commission the meter (see Start-up on page 21).
Installation The Fronius Smart Meter can be mounted on a 35 mm DIN rail. The housing
comprises 4 DUs (division units, max. 72 mm).
Protective cir-
cuit
The Fronius Smart Meter is a hard-wired device and requires a disconnecting
device (circuit breaker, switch or disconnector) and overcurrent protection (auto-
matic circuit breaker).
The Fronius Smart Meter consumes 10 - 30 mA. The nominal capacity of the dis-
connecting devices and the overcurrent protection is determined by the wire
thickness, the mains voltage and the required breaking capacity.
-Disconnecting devices must be mounted within sight and as close as possible
to the Fronius Smart Meter; they must also be easy to use.
-The disconnecting devices must satisfy the requirements of IEC 60947-1
and IEC 60947-3, as well as all national and local regulations for electrical
systems.
-Use overcurrent protection rated for max. 63 A.
-To monitor more than one mains voltage, use connected automatic circuit
breakers.
-The overcurrent protection must protect the mains terminals marked L1, L2
and L3. In rare cases, the neutral conductor has an overcurrent protection
which must simultaneously interrupt neutral and unearthed lines.
8