6
ELECTRICAL INSTALLATION
46
Figure 6�15 – Connection of CAN BUS cable to connector P8 on controller AY10
Detail of cabling of CAN BUS cable to controller AY10.
LEGEND
example of connection of 2 CAN BUS cables
(the appliance is an intermediate node)
A
insulating tape to protect board/screen
B
CAN BUS cable shielding
C
cable bracket (for 2 CAN BUS cables)
D
orange connector for CAN BUS cable
terminals
E
wires (no. 6) of CAN BUS cables
To connect the CAN BUS cable to the DDC, proceed as follows (references in Figure 6.15
→
46):
You will need: appliance not powered up. Necessary equipment and materials.
1.
Remove the front panel of the appliance and the cover of the electrical panel.
2.
Cut a length of cable, long enough to allow it to be installed without kinking.
3.
Having chosen one end of the length of cable, remove the sheath from a length of approximately 70-80 mm, taking care not
to cut the wires contained inside, the shielding (metallic shield and/or aluminium sheet) and, if present, the bare connector in
contact with the shield and the wires contained within.
4.
If the cable is too thin to be held in place in the cable holder bracket (detail C), make it thicker by wrapping insulating tape
around it on the sheath in the area adjacent to the stripped part (to an approximate diameter of 12-13 mm).
5.
Pull back the shielding in the sheathe; apply electrician’s tape to the end of the shielding as pulled back (detail A).
6.
Pull the orange connector (detail D) out of socket "P8" on the controller.
7.
Connect the three coloured wires to the orange connector, as shown in detail "A" in Figure 6.16
→
47. Observe the terminal
markings L, H, GND (on the board at the base of the socket "P8") which are given both in Table 6.2
→
43, and in Figure 6.16
→
47:
▶
if the appliance is an intermediate node on the network, also complete step 8;
▶
if the appliance is a terminal node, skip directly to step 9.
8.
Intermediate nodes only: repeat the operations from point 2 to point 5 for the other length of CAN bus cable required. Now
proceed with step 7 and, to connect the cable to connector P8, refer to detail "B" in Figure 6.16
→
47. Then proceed to point 9.
9.
Fit the orange connector, with wires attached, into the P8 socket on the board.
10. Fix the CAN BUS cable (or two cables, according to the type of node being connected) to the cable fixing bracket so that the
rolled-back sheathing makes solid contact with the metal bracket. The cable should be secured against pulling out.
11. Now, depending on the type of node being configured, set the jumpers on the appliance’s controller as shown in detail "A" or
detail "B" in Figure 6.16
→
47. Proceed as follows:
▶
If the appliance is an intermediate node on the network (with no. 6 wires in the orange connector): set the jumpers as shown
in detail "B" of the figure: Jumpers OPEN.
▶
If the appliance is a terminal node on the network (with no. 3 wires in the orange connector): set the jumpers as shown in detail
"A" of the figure: Jumpers CLOSED.
