COMPRESSORS
COMPRESSORS
If any kind of connector or switch is placed between the battery poles and the power terminals of
the electronic driver, its resistance should be less than 10m
Ω
. If the resistance is higher than 5m
Ω
,
the maximum length of the wires indicated in Table 1 should be halved or the cross section
doubled.
The FDC1 electronic driver features a terminal board where all connections are made. The terminal
lay out is described in Figure1:
The electronic control unit FDC1 is supplied with the exclusive Serial Port Interface (SPI), featuring a
RJ11 telephone type connector. This port allows the electronic driver to be connected to a computer
for programming purposes using the FDC programming package (hardware and software) provided
by ACC under request. Optionally, the SPI can be configured to:
Wiring Diagram
3.
THE SERIAL PORT INTERFACE
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.
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❖
❖
When connecting the electronic driver to the compressor, any position of the connector is possible
under an electrical point of view. However, in practice, the vertical position is not possible because
the electronic box cannot be assembled. The connector should be rotated 120º clockwise or counter
clockwise with respect to the vertical position as shown below.
Fig. 1. FDC1 Wiring scheme
Fig. 2. Connection of the FDC´s electronic driver to the compressor
September 2006
4
GD30FDC User Manual
DISTRIBUTED by PROCOLD S.r.l. - Italy - Tel: (+39) 0161 42 44 52 - [email protected]
