Detailed Answer
Notes for VFD connection: 1. output contacts to the VFD multi-speed terminals (forward/reverse/multi-speed selection); 2. VFD parameter settings (multi-speed frequencies, accel/decel times); 3. interference protection: keep distance between VFD and receiver, shield cable grounding, add ferrite cores; 4. emergency stop circuit independent of the VFD (e-stop cuts the main circuit directly); 5. common grounding (prevent potential difference). LDER LD series is compatible with mainstream VFDs; most issues come from interference and grounding.
| Wiring | Multi-speed terminals |
| Interference | Shield + ferrite + distance |
| E-stop | Independent main circuit |
Note:If VFD interference causes remote failure, check grounding first.