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5.5.7. Access to auxiliary connections
Some PV installations require the inverter to be connected to auxiliary equipment, such as solar radiation sensors,
heat sensors and anemometers.
Consult the manufacturer when ordering.
For best performance, the cables carrying these auxiliary signals will be removed from the power
cables.
5.5.8. Connection for communication via RS-485 serial port
These units incorporate hardware for communicating via an RS-485 serial line. This hardware is made up of an
"AAP0022 Com RS-485" board supplied ready mounted in the control board in the electronics block. To access the
board, use the access points indicated in section "5.5.1. Description of cable inlets".
The unit is provided with a >211 Ohm ferrite rod. The cable coming out of the "AAP0022 Com
RS-485" board must be inserted as close as possible to the board, turning it twice around the hole
at its centre.
For more information on board operation, see «AAX2002IKI01 Installation Guide for Communications Devices».
5.5.9. Connection for communication via modem-GSM/GPRS + RS-485
At the request of the installer, inverters may optionally be equipped with hardware for communication via GSM/GPRS
phone. This hardware is made up of an "AAX0001 Com GSM/GPRS + RS-485" board and the antenna for the modem.
The unit is provided with a >211 Ohm ferrite rod. The RS-485 cable coming out of the "AAX0001
Com GSM/GPRS + RS-485" board must be inserted as close as possible to the board, turning it twice
around the hole at its centre.
The board is provided with a bag (attached with a plastic tie) containing the modem antenna and cable. Connect the
rod cable to the cable's rod output, and feed it out through the holes on the upper left side of the enclosure. Connect
the end that goes outside to the rod and attach it via its magnet to the unit's enclosure.
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