Installation, Start-Up, Adjustment and Maintenance Manual
47
•
CAN-BUS wire connection to Digital Display Control (DDC)
Like the orange connector of the electronic control board, the DDC connector, too, has two different situations of
connection (see Figure 26, Figure 27 page 48). The Jumpers (J21) are closed in the factory as in 1st CASE.
1
. Take from the supplied bag the orange connector of CAN Port.
2
. Connect 3 conductors of CAN-BUS wire (Particular B, Figure 25)
respecting the signal/color indications as in Table 17, page 44 with
three inlets H, L, GND of the connector as in Figure 25; see also
Figure 26, page 48.
3
.
If one intermediate node
of parameters communication network is
under connection, follow the instructions of points
3a, 3b, 3c, 3d;
but
if one terminal node
of parameters communication network is
under connection, go directly to point
4
.
3a
Connect 3 internal conductors of the other segment of CAN-
BUS wire (after cutting the sheath from terminals) with 3 inlets
H, L, GND of the DDC connector as in Figure 27, page 48.
3b
Remove the back cover of the DDC unscrewing the 4 fixing screws.
3c
In the electronic control board of DDC, ad just the Jumpers (J21) placed beside the orange
connector of CAN Port (P8) as in Figure 27, page 48.
3d
Fix the back cover of the DDC using 4 screws
4
. Engage – from the back cover hole of DDC – the orange connector of CAN Port to the DDC electronic
control board.
5a
Roll up the cut shield of the above mentioned CAN-BUS wire and connect it with an eyelet terminal of
0.16” (particular C&D, Figure 25).
5b
(only for intermediate node) roll up the cut shield of the other CAN-BUS wire and connect it with eyelet
terminal of 0.16” (particular C&D, Figure 25).
6
. Unscrew the right bottom screw of the DDC back cover (particular D, Figure 25) and inset it to the eyelet
terminal (s) and screw it down again.
7
Isolate – with suitable adhesive tape – the shield part of the wire (particular A, Figure 25).
Figure 25 –
EXAMPLE OF CAN-BUS WIRE CONNECTION TO DDC (only one entry CAN-BUS wire)
ORANGE CONNECTOR OF CAN PORT
A
B
C
D
B
D
DDC
WARNING
LEGEND
GND Common cable
A Isolated adhesive tape
L
LOW signal parameters B Conductors CAN wire
H
HIGH signal parameters
C CAN –BUS wire shield
J21 Jumpers
D Eyelet terminal fixed with screw at back cover DDC
P8
