consew CSM-550-1 motor issue

Dave38

Dave38

theemperorhasnoclotheson
Silver Member
Has anyone had an issue with the consew CSM-550-1 motor running at full speed no matter the setting of the pot? Mine was fine to center drill a hole....then 1 minute later went to finish drilling it and it's at full 3000+ rpms with no adjustment. I did check the pot with an ohm meter and it and the wire/connector are fine. Any help is appreciated.
Thanks,
Dave
 
Dave38 said:
Has anyone had an issue with the consew CSM-550-1 motor running at full speed no matter the setting of the pot? Mine was fine to center drill a hole....then 1 minute later went to finish drilling it and it's at full 3000+ rpms with no adjustment. I did check the pot with an ohm meter and it and the wire/connector are fine. Any help is appreciated.
Thanks,
Dave
Click to expand...

The motor controller is likely bad. I believe those use pulse-width-modulation (PWM) to control speed with high torque. The knob is not exactly a potentiometer (or if it is, it controls other circuitry and not the motor directly). PWM controllers require more than a voltmeter to troubleshoot.
 
Based on similar style Motors, I'd say it's the speed controller that's bad. These generally seems to be incredibly flimsily made.
 
DeeDeeCues said:
The motor controller is likely bad. I believe those use pulse-width-modulation (PWM) to control speed with high torque. The knob is not exactly a potentiometer (or if it is, it controls other circuitry and not the motor directly). PWM controllers require more than a voltmeter to troubleshoot.
Click to expand...
It is actually a type of rotary switch with micro resisters soldered in between the connection posts.
 
You must log in or register to reply here.
Back
Top