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WEX 300 Electrical Management.
Revision 2
7.2 Relay Outputs
The WEX300 has relay outputs which are used to switch the Socket and
Lighting circuits. The relay board is divided into two sections often referred to
as Room1 and Room2 or Cell 1 and Cell 2. Each room is allocated two relays
for sockets and four relays for lights this is displayed below in Figure 5.
Neutral to all circuits is common and the Live is switched.
Figure 5 Relay Outputs Sections
7.3 Communications
The WEX300 is a slave device and is controlled by a WDC100\200 via CANbus.
The CAN is connected via a 4way RJ11 connector. Within the WEX300 there are
three boards which also need to communicate, the control board, the metering
board, and the relay board, this is done via RS-232. The three boards are
connected via IDC connectors and ribbon cable.
