1. The power supply should be connected to the R, S, and T terminals of the VFD, and should not be connected to the VFD (U, V, W), otherwise the VFD will be damaged. It is necessary to clean up the trivial parts of the wire head after wiring, which may lead to abnormalities, failures, and failures, and it is necessary for the VFD to always be clean. When punching holes in the console, be careful not to let things like fragment powder get into the VFD.
2. Between terminal + and PR, do not connect anything else except the recommended braking resistor option, otherwise do not short circuit.
3. Electromagnetic wave disturbance. The VFD input/output (main circuit) contains harmonic components that may disturb communication equipment in the vicinity of the VFD. As a result, optional radio noise filters FR-BIF or FRBSF01 or FR-BLF line noise filters are installed to minimize disturbance.
4. When wiring at a long interval, due to the influence of the charging current of the parasitic capacitor of the wiring, the function of fast response current limiting will be reduced, and the appearance of the secondary side will fail. Therefore, the maximum wiring length should be less than the specified value. When the wiring length exceeds the need, parameter 156 should be set to 1.
5. Do not install power capacitors, surge suppressors, and radio noise filters at the output of the VFD. Otherwise, the VFD will fail, or the capacitors and surge stoppers will be damaged.
6. In order to make the voltage drop within 2%, a suitable type of wire connection should be used. When the wiring interval between the VFD and the motor is long, especially in the case of low-frequency output, the torque of the motor will decrease due to the voltage drop of the main circuit cable.
7. After the operation, when changing the operation wiring, it is necessary to cut off the power supply for more than 10min, and then check the voltage with a multimeter. After a power outage for a period of time, there is still a risk of high voltage on the capacitor.
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