Hi all
Ive just finished building a lathe from scratch.I firstly build-ed the prototype out of wood to get all the dimensions right.
Been playing with the prototype turning wax for about 6 months without any problems, vfd and all.No special attention was given to shielding cables because I have not experience any noise related problems.
Consisting of the following components:
VFD and motor (3 Phase 380 Volts)
Rutex drives (2000 series)
Cambel breakout board and speed control
Servos
Transformer pack (From 220 Volt supply to lower voltages for the electronics)
Now for the fun part.......................
After converting the wood framework to metal all hell broke loose.
As soon as the VFD starts up every thing go's berserk.
I removed the VFD and 98% off my problem disappeared. The only other noise related problem I am getting is that the Z axis jumps about a 0.5mm when the motor starts up.
I really want to fit the VFD back so I need help in shielding all cables. My electronic knowhow is very limited.
So if some one can explain how to shield the following cables.
Shielding cable to be used has a stainless weaved shield.
1. From the wall ac socket to the transformer pack.
2. From the transformer pack to the Rutex drives.
3. From the wall ac socket to the breakout board.
4. From the Rutex drives to the servos.
5. From the breakout board to the Rutex drives.
6. From the speed control to the VFD.
7. From the forward and reverse relays on the breakout board to the VFD.
8.From the VFD to the spindle motor.
9. From the drives to the encoders.
If some one can explain to me fasten the shields and where not, and do I use the shield as ground or as 0 Volts or none at all.
Pretty Please any help will be appreciated.
Thanks
Deon