Installation
Checklist for
installation
For installation information, see the following chapters:
1
Switch off the power supply before establishing a mains connection.
2
Mount the Fronius Smart Meter (see Installation on page 8).
3
Connect automatic circuit breakers or automatic circuit breakers and disconnectors
(see Protective circuit on page 8).
4
Connect the mains cable to the Fronius Smart Meter (see Cabling on page 9).
5
Mount the current transformers on the conductors. Make sure that the current trans-
formers are pointing in the correct direction. An arrow either points to the load or the
source (public grid) (see Connecting the current transformers on page 12).
6
Connect the current transformer and Fronius Smart Meter (see Connecting the cur-
rent transformers on page 12).
7
Make sure that the current transformer phases match the mains voltage phases (see
Connecting the current transformers on page 12).
8
Note down the nominal current of the current transformer for each meter. These val-
ues will be required during setup.
9
Connect the output terminals of the Fronius Smart Meter to the Fronius inverter (see
Connecting the data communication cable to the inverter on page 12).
10
If necessary, set terminating resistors (see Terminating resistors on page 14).
11
Tug on each wire and plug to make sure that they are securely connected to the ter-
minal blocks.
12
Switch on the power supply to the Fronius Smart Meter.
13
Check 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.
14
Set the transformation ratio of the current and voltage transformers (see Setting the
transformation ratio of the current and voltage transformers on the Fronius
Smart Meter on page 15).
15
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 20).
16
Configure and commission the meter (see Start-up on page 23).
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 circuit The Fronius Smart Meter is a hard-wired device and requires a disconnecting device (cir-
cuit breaker, switch or disconnector) and overcurrent protection (automatic circuit
breaker).
The Fronius Smart Meter consumes 10 - 30 mA. The nominal capacity of the disconnect-
ing devices and the overcurrent protection is determined by the wire thickness, the mains
voltage and the required breaking capacity.
8
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