Hi guys/possibly ladies,
I am making a cnc controlled motor speed controller for a 95W 240v motor (DC rectified). I took a chance and bought the velleman K8064 optically isolated triac lighting dimmer circuit hoping it would be able to run a motor and be a plug and play option but alas it is not completely. The device is rated to 750W at 240v which is much higher than the motor power.
The original controller for the motor had a 2 speed triac based speed selector which I removed in favour of a home made closed loop speed control so I know triac control of this motor is possible.
My problem is that the board's internal diagnostic flashes "Phase shift too great" and stops output when the motor is run over about half.
Can any of you much smarter than me guys/gals suggest any modifications to this circuit that will allow it to run a motor?
Circuit diagram is attached.
Thanks in advance!
Pete
I am making a cnc controlled motor speed controller for a 95W 240v motor (DC rectified). I took a chance and bought the velleman K8064 optically isolated triac lighting dimmer circuit hoping it would be able to run a motor and be a plug and play option but alas it is not completely. The device is rated to 750W at 240v which is much higher than the motor power.
The original controller for the motor had a 2 speed triac based speed selector which I removed in favour of a home made closed loop speed control so I know triac control of this motor is possible.
My problem is that the board's internal diagnostic flashes "Phase shift too great" and stops output when the motor is run over about half.
Can any of you much smarter than me guys/gals suggest any modifications to this circuit that will allow it to run a motor?
Circuit diagram is attached.
Thanks in advance!
Pete
Attachments
-
146.1 KB Views: 9