Tecorp HC2V9P4018 [175/182] V8 f q

High Performance Vector Control/Torque Control Inverter User Manual

Appendix C FAQ 153

V8 F&Q

I. In the case of vector control 2, why did the inverter have abnormal operation?

A: (1) Check if there exists large difference between the power class of the motor and that of the inverter;

A: (1) Check if parameter auto-tuning has been performed under vector control1, For details, refer to the

setting process for parameter auto-tuning in Appendix B.

A: (2) Check if the control lines for the V8-G-4018/P-4022L or current sensor of above power class are

loose or dislocated.

III. Why was the operating frequency of the inverter kept at 0Hz upon reverse operation?

A: (1) Check if the frequency is set as 0;

A: (2) Check if the inverter function code parameter P3.09 is set as 0. If not, change it to 0.

IV. The inverter had been connected with braking resistor featuring dynamic braking, why didn’t it

work?

input, toggle the corresponding channel to the V end of the jumper; for the analog current input, toggle the

corresponding channel to the I end of the jumper.

A: (2) Calibrate the analog input curve according to function codes P6.00 to P6.20 For details, refer to the

description of P6 group in Chapter 6 Parameter Description.

VI. Why was there large deviation on the correspondence relation between the analog output and

the relevant function output?

A: (1) Check if the jumpers of analog output type and control board are properly set. For the analog voltage

output, toggle the corresponding channel to the V end of the jumper; for the analog current output,

toggle the corresponding channel to the I end of the jumper.