Wiring
-17-
4.1.2 Cabling Requirements
Low-voltage cables (< 1 kV) are generally divided into four types. Only cables of the same type can be
bundled together. Cables of different types must be separated without intersection or overlap. If
intersection cannot be avoided, route cables in a right-angle crossover manner.
No. Type
Application
1 I
Ethernet port and EtherCAT port
2 II
Low-speed digital communication signals (RS232 and RS485) and DI/DO
signals
3 III
Low-voltage AC power distribution cables or DC power cables (such as
a 24 VDC power supply)
4 IV
Input and output cables, welding machine cables, and power converter
power cables
Keep a proper distance between different types of cables. For cables shorter than 30 m, the minimum
distance allowed is shown in the figure below.
Figure 4-3 Required distances between different types of cables
Note
● If two cables run parallel for an extended length, increase the distance between the two cables accordingly.
● You can also install spliced shielding plates between different types of cables. To reduce cross interference,
route all cables as closely as possible to the grounded structural components of the cabinet, such as the
cabinet's mounting plate or rack components.
4.1.3 Installation of the Filter
If the controller is subject to a strong interference source (such as an AC drive), it is recommended that
you add a noise filter to suppress the interference.
Install the filter as close as possible to the power supply of the controller. Fix the filter to the
conductive backplane through screws. Protect the area around the screws with paint and ensure
reliable grounding. The outgoing and incoming cables of the filter should be routed separately to avoid
noise coupling on the cables.
To Next Page
Loading...
