SOLUTION

CNC machine

Kinda variable freqyency drive applied in CNC machine

 

1, Load feature
CNC machine is a mechanical-electrical integrated system include mechanic, electric, hydraulic, pneumatic, microelectronics and information technology, it has the features of high accuracy, highly automated and highly flexible.

2, Requests for inverters (VFD)
(1)  It can work normally at 300RPM speed, has good stability, high control accuracy, fast response speed and high output torque at
       low speed.
(2)  It should have external forward / reverse control signal and analog input signal.

3, Instruction for commissioning
(1)  System diagram


  





 


(2)  Parameters list (Take 380V, 4KW as example)

No.Function codesDefaultSetting valueExplanation
1F0-0120Sensorless vector control (SVC)
2F2-01Model depend-Set them based on the motor nameplate value
3F2-02Model depend-
4F2-03Model depend-
5F2-04Model depend-
6F2-05Model depend-
7F2-1102Rotation autotuning (disconnect the load)
8F0-0201External start / stop signal
9F0-0312, 3, 4External analog signal to control the output frequency
10F0-1050Hz100HzSet the max. frequency based on real request
11F0-1250Hz100HzSet the upper limit frequency based on real request
12F0-17Model depend0.5sSet the acceleration time based on real request
13F0-18Model depend0.5sSet the deceleration time based on real request
14F1-1100.5DC braking start frequency while stopping
15F1-1200sDC braking delay time while stopping 
16F1-130%100%DC braking current while stopping 
17F1-140s1sDC braking time while stopping

 
(3)  Typical wiring diagram

 

 

4, Notices
(1)  Under the SVC control mode, it must perform the auto tunning firstly, then set the other parameters.
(2)   Please pay attention to ACC/DEC time setting and also the braking resistor’s selection.
(3)  The installation environment should be safe, to avoid the iron dust and other items to enter into inverter.


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