Chapter 4 Installing and Wiring
4-3
4.3 Connecting to EtherCAT Port
There is a strict network topology requirement for the EtherCAT network. The network must follow the
rule that the input port of the next servo should be connected to the output port of the previous servo.
Please use Delta cables as EtherCAT cables. For specifications of Delta cables, refer to Appendix 1.
DVP-04AD
DVP-04DA
DVP-16SP
N
O
D
E
A
D
D
R
E
S
S
x
1
0
x
1
0
1
0
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
R
T
U
-
E
C
A
T
P
O
W
E
R
R
U
N
A
L
A
R
M
R
U
N
S
T
O
P
E
th
e
rC
A
T
I
N
O
U
T
EtherCAT
Mast er
D
V
P
-
0
4
A
D
D
VP
-
04
D
A
DVP-16SP
N
O
D
E
A
D
D
R
E
S
S
x
1
0
x
1
0
1
0
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
R
T
U
-
E
C
A
T
P
O
W
E
R
R
U
N
A
L
A
R
M
R
U
N
S
T
O
P
E
th
e
rC
A
T
I
N
O
U
T
EtherCAT
EtherCAT
I n
O ut
In
4.4 Wiring
4.5 Power Input
The power input of RTU-ECAT is 24V DC. Please notice the following points during use.
Connect the supply power to the two terminals, 24V and 0V and the grounding terminal to the earth.
Be cautious that the RTU-ECAT device may be damaged if the positive and negative polarities of
the supply power are connected reversely.
Please be sure to use certified power supply with SELV output or certified power supply providing
double insulation evaluated by UL60950, or UL61010-1 and UL61010-2-201 standards
The diameter of the power wire must be between 12 and 28AWG and the rated temperature should
be greater than 70°C. The power terminal block plug wiring torque is 4.5 in-lbs.
The cables of the AC power 110V, 220V and DC power 24V must be twisted and connected to the
module as short as possible in length.
Do not combine the AC 110V, 220V, and DC 24V cables with the main circuit and I/O signal cables
together and please keep them away from each other. If the space permits, it’s recommended to
separate these lines by more than 100mm.
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