Micromill Spindle turns off

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Rhomech
Posts: 3
Joined: Wed 08 Aug , 2012 12:00 pm
Hardware/Software: Denford Starturn 4
Denford Orac
Denford Micromill 2000
MACH 3

Micromill Spindle turns off

Post by Rhomech » Sun 23 Sep , 2018 16:38 pm

My Micromill 2000 recently developed a problem where the spindle will stop and 'Emergency Stop' Mach3. The machine will run for different lengths of time, but never more than 3 minutes. I have changed the external brushes, and although there has been an improvement, it still has the same problem. Is there any chance that there could be a problem with the thermal switch, and if so. how do I test/replace it. cheers.

Martin
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Re: Micromill Spindle turns off

Post by Martin » Tue 25 Sep , 2018 6:47 am

The Micromill spindle motor does not have a thermal fitted.

I suspect its electrical noise on the E-Stop line. You may need to fit a smoothing capacitor.

Has it been converted to Mach 3?

Rhomech
Posts: 3
Joined: Wed 08 Aug , 2012 12:00 pm
Hardware/Software: Denford Starturn 4
Denford Orac
Denford Micromill 2000
MACH 3

Re: Micromill Spindle turns off

Post by Rhomech » Tue 25 Sep , 2018 9:10 am

HI there,

it has been partially converted. I am still using the spindle motor board, and the main board. I have noticed that when the machine shuts down, the right hand side solenoid, the one where the 2 white wires form the motor board come into, operates. The other side of the solenoid is connected to the emergency stop. Would that be a problem with the motor board, or the motor?

regards

Gary

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