Electrical Design
‑88‑
To avoid the influence on the communication cable due to other stresses and ensure
the stability of communication, secure the cable near the equipment before Ethernet
communication.
Ring topology or linear topology can be realized with the two interfaces on the AC
drive. Only one interface needs to be connected at the beginning or end of the circuit.
The maximum cable length allowed between two nodes is 100 m.
Note
If the communication between the equipment and the controller needs to be maintained
when the main power supply is cut off, connect the external 24 V power supply through
CN6 (external 24 V power supply input terminal) to supply power to the AC drive.
3.4 Grounding
3.4.1 Main Circuit Grounding Requirements
● Ground the grounding terminal to avoid electric shocks. Comply with the relevant
local electrical regulations for grounding.
● To prevent electric shocks, ensure that the protective grounding conductor meets
the technical specifications and local safety standards, and shorten the grounding
cable length as much as possible. The leakage current of the product will exceed
3.5 mA, so copper cables with a cross‑sectional area of at least 10 mm
2
must be
used as protective grounding conductors according to EN 61800‑5‑1, or two
protective grounding conductors of the same specification shall be used for
connection.
● When using multiple devices, follow the instructions for grounding all devices.
Incorrect equipment grounding will lead to misoperation of equipment.
Main circuit grounding requirements:
● Use a proper yellow‑green copper wire for protective grounding conductor, and do
not connect it to switches such as circuit breakers.
● The grounding terminal must be reliably grounded to ensure normal running of
the equipment and avoid equipment damage.
● Do not connect the grounding terminal to the N terminal of the power supply.
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