4 Electrical installer
Installation, Use and Maintenance Manual – GA Line ACF Series
25
4�4 ADJUSTMENT AND CONTROL
Control systems, options (1) (2)
Two separate control systems are provided, each with specif-
ic features, components and diagrams (Figures 4.4 p. 26,
4.5 p. 26):
▶
System (1), with DDC control (with CAN-BUS connection).
▶
System (2), with an external request�
CAN-BUS communication network
The CAN-BUS communication network, implemented with
the cable of the same name, makes it possible to connect
and remotely control one or more Robur appliances with the
DDC control devices�
It entails a certain number of serial nodes, distinguished in:
▶
intermediate nodes, in variable number;
▶
terminal nodes, always and only two (beginning and
end);
Each component of the Robur system, appliance (GAHP,
GA, AY, ���) or control device (DDC, RB100, RB200, ���), corre-
sponds to a node, connected to two more elements (if it is
an intermediate node) or to just one other element (if it is
a terminal node) through two/one CAN-BUS cable section/s,
forming an open linear communication network (never star
or loop-shaped)�
CAN-BUS signal cable
The DDC controller is connected to the appliance through
the CAN-BUS cable, shielded, compliant to Table 4.1 p. 25 (ad-
missible types and maximum distances).
Table 4�1 – CAN BUS cables type
CABLE NAME
SIGNAL / COLOR
MAX LENGTH
Note
Robur
Ordering Code OCVO008
ROBUR NETBUS
H= BLACK
L= WHITE
GND= BROWN
450 m
Honeywell SDS 1620
In all cases the fourth conductor should not be used
BELDEN 3086A
H= BLACK
L= WHITE
GND= BROWN
450 m
TURCK type 530
DeviceNet Mid Cable
TURCK type 5711
H= BLUE
L= WHITE
GND= BLACK
450 m
Honeywell SDS 2022
TURCK type 531
H= BLACK
L= WHITE
GND= BROWN
200 m
For lengths ≤200 m and max 4 nodes (e.g. 1 DDC + 3 GAHP), a
simple 3x0.75 mm shielded cable may even be used.
How to connect the CAN BUS cable to the appliance
To connect the CAN-BUS cable to the S61 electronic
board (Paragraph 1.5 p. 14),located in the Electrical
Panel inside the unit, Figure 4.3 p. 25 and 4.4 p. 26
Details A and B:
1. Access the Electrical Board of the appliance accord-
ing to the Procedure 4.2 p. 23);
2. Connect the CAN-BUS cable to terminals GND + L
and H (shielding/ea two signal wires);
3. Place the CLOSED J10 Jumpers if the node is termi-
nal (one connect ed CAN-BUS cable section only),
or OPEN if the node is intermediate (two connected
CAN-BUS cable sections);
4. Connect the DDC or the CCP/CCI to the CAN-BUS
cable according to the instructions in the following
Paragraphs and the DDC or CCP/CCI Manuals.
Figure 4�3 – Electrical wiring diagram
LEGEND
SCH
electronic board
GND
Common data
L
Data signal LOW
H
Data signal HIGH
J1
Jumper CAN-BUS in board
A
Detail case "terminal node" (3 wires; J1=jumper "closed")
B
Detail case "intermediate node" (6 wires; J1=jumper "open")
P8
Port can/connector
Connection cable CAN BUS to electronic board: detail A case "terminal
node", detail B case "intermediate node"
GAHP Configuration (S61) + DDC
(System (1) see also Paragraph 1.6 p. 15)