The serial port interface
The electronic control unit FDC3 is supplied with
the exclusive Serial Port Interface (SPI), featuring
a RJ45 telephone type connector. This port
allows the electronic driver to be connected to
a computer for programming purposes using
the FxC programming package (hardware and
software) provided by the manufacturer upon
request. Optionally, the SPI can be configured to:
• Install a LED to display the intervention of any
alarm.
• Set up either the compressor speed or the
battery protection level, through physical
connections between IN1, IN2 and COM.
• Connect the electronic driver as slave to an
Electronic Integral Manager of the appliance with
serial communication capabilities (Rx, Tx and
COM), to allow working with variable speed. SPI
provides a 5 V output, limited to 25mA, to power
up the EIM.
TO PROGRAM THE ELECTRONIC FDC3 DRIVER
BY MEANS OF THE FXC PROGRAMMING KIT THE
FDC3 DRIVER MUST BE POWERED BY THE BATERY.
Figure 4 Shows the RJ45 male connector which
can be plugged to the SPI and the usage of each
terminal in it.
Fig 4: SPI terminals
8
FRCC.PC.041.A1.02
