5
vacon • 39
ELECTRICAL CONNECTION
Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205
Connections between drives with OPTD2
Special connection:
In this connection example, the leftmost device is the Master and the others are slaves. The Master
can send and receive data from the slaves. The slaves cannot communicate with each other. Changing
of masters is not possible, the first device is always the Master.
The OPTD2 board in the Master has the default jumper selections, i.e. X6:1-2, X5:1-2. The jumper
positions have to be changed for the slaves: X6: 1-2,
X5:2-3.
Figure 28.Alternative connection of “CAN GND” signal
Max.
number of devices
in line
Max.
speed achieved
[Mbit/s]
3
12
6
6
12
3
24
1.5
Shield
I
H
N
A
C
I
H
N
A
C
O
L
N
A
C
O
L
N
A
C
CAN
GND
CAN
GND
21
22 23
OPTD2 /
OPTD6
OPTD2 /
OPTD6
OPTD2 /
OPTD6
Grounding clamp
Conn ect the
data GND
tightly to the
chassis on
one point
in the net
21
22 23
21
22 23
