Electrical Installation
‑130‑
Figure 7‑27 Recommended power cable types
Requirements on routing of the main circuit
The power input cable of the AC drive and the motor cable can generate strong
electromagnetic interference. To avoid electromagnetic interference caused by long‑
distance parallel coupling between the strong interference cable and the control
circuit, ensure a distance greater than 30 cm between main circuit cables and signal
cables. Common main circuit cables include input R/S/T cables, output U/V/W cables,
DC buses, and braking cables. Signal cables include I/O signal cables, communication
cables, and encoder cables.
Cable ducts must be in good connection and well grounded. Use aluminum cable
ducts to ensure the equipotentiality of the AC drive. Connect the filter, AC drive, and
motor to the system (machines or devices) properly. Protect all connections with
spray coating and ensure good contact of conductive metal.
Figure 7‑28 Routing of cables
Wiring in an IT or angular grid system
Before wiring in an IT or angular grid system, disconnect the optional EMS grounding
screw. Failure to comply may result in damage to the AC drive or injury.
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