User manual

Device Inverter Solar-Log
WEB‘log
1)
Signal
¤
Connection RJ45 Terminal strip RJ12
5 — — —
6 — — —
7 — — —
8 3 6 Ground
1)
ATTENTION!
Danger of destroying the RS485 input of the inverter. Pin 1 of the RJ12 socket of the Web‘log data
logger carries 24 V DC. Never connect the alternative data connection cable to pin 1!
3.6.5 Termination
To prevent data transmission errors, the start and end of the RS485 bus should be terminated:
n The external data logger (at the start of the data connection) must be terminated according to
the manufacturer's specifications.
n The last inverter (at the end of the data connection) is terminated by plugging the optionally
available termination plug into the free RJ45 socket (for RS485 bus).
3.6.6 Addressing
Every inverter must be assigned its own unique address for communication between the bus master
and the slaves.
Every inverter is set with an address of 1 at the factory. This means that the addresses must be
adjusted in systems having more than 1 inverter. The following applies:
n The address is changed at the inverter via the menu items
‘Settings’ ▶ ‘Address’ .
n Only addresses ranging from 1 – 99 may be set.
n The bus master devices usually support less than 99 addresses. Consult the respective operating
instructions for these devices before setting the addresses of the inverters.
n We recommend starting with address 1 for the first inverter on the bus and then incrementing
the address by 1 for each subsequent inverter on the bus, in the same order as they are physi-
cally installed. This makes it easier to identify the relevant inverters when their address is dis-
played in messages shown on the remote display.
3.6.7 Feed-in management
Depending on the country, the active power fed into the grid by a photovoltaic system must be able
to be reduced by the grid operator. The following products are recommended for implementing this
legally prescribed specification:
n StecaGrid SEM
n WEB'log from Meteocontrol
n Solar-Log from Solare Datensysteme
GB
747.431 | Z08 | 2014-01-31
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