Solare Datensysteme Solar-Log - Manual (Page 47)

47
Connecting accessories
Fitting optional sensors
The ambient temperature sensor must be fitted in a shady place with a wall bracket. The connection plug is
screwed firmly into the 3 pin input on the Sensor Box Professional Plus.
It is best to install the wind sensor in a high, exposed position using the mounting bracket. The connection
plug is screwed firmly into the 2 pin input on the Sensor Box Professional Plus.
CAUTION
Risk of damage to the unit!
Penetrating moisture can cause short circuiting and can destroy the Sensor Box Profes-
sional Plus and Solar-Log™.
WARNING
It is not necessary to open the sensor to fit it. All components are simply screwed on. If
the housing is opened, water resistance and proper operation cannot be guaranteed.
Wiring the Sensor Box Professional Plus to the Solar-Log™
The Sensor Box Professional Plus can also be integrated in the bus wiring of the inverters.
Note
When using inverters with RS422 communication, do not operate the sensor on the same
bus.
For inverters using RS485 communication, please check the compatibility in our Inverter
Database .
The Sensor Box Professional Plus is connected to the Solar-Log TM using the RS485 interface.
The connection cable between the Sensor Box Professional Plus and the Solar-Log TM consists of 4 wires
and includes the 12 volt power supply and the data connection to the Solar-Log TM .
The cable shielding must be connected with an equipotential bonding system.
A separate power supply unit is not required.
The connection cable can be extended (max. 50 m). However, an 10.5 V power supply is needed at the end
of the cable. For longer stretches please select a larger cable diameter.