Seig SX3 mill controller

[Paul LousickParticipant @paullousick59116]

[Paul LousickParticipant @paullousick59116]

Hi,

I have Seig SX3 mill about 4 years old and it is starting to have problems with the main motor controller.

I live in Australia and the mill used 240 volt supply.

After running for a while, there is a slight, continuous beeping sound and the control buttons do not work. (normally a short beep when pressing one of the buttons) and the RPM meter goes blank.

But the motor continues to work at whatever speed it was set to.

The only way to stop the motor is to press the main, emergency stop button.

After re-setting the stop button everything works as it should for a while then problem starts again.

Does anyone have any ideas what is causing the problem. Do I need to replace the controller card ?

Does anyone have a circuit diagram ?

Paul.

[Ketan SwaliParticipant @ketanswali79440]

Hi Paul,

Most likely to be an issue with the touch panel circuit board. Check if your version looks like this:

Versions older then five years might be a little different, but not sure.

Check for loose connections / clean. If all of that works out, then great. If not, remove this board, send it, along with spindle speed display to your friendly spares supplier for checking / replacement. There will be a charge for testing. If your supplier says the panel is okay, then it will be the main control board. Again, same procedures apply, so it will be better to send off the touch panel pcb, spindle speed display and main control board to your supplier for testing.

No circuit diagrams available.

Ketan at ARC.

[Geoff104Participant @geoff104]

Hi All,

Anyone got a blown SX3 control board they would be prepared to send me?Of course I would be prepared to refund any reasonable postage

I am an automotive electronics engineer and have a very light use SX3 but wish to prepare for future problems out of interest and would be prepared so share my findings to the community.

kind regards

Geoff

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