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General Mach Discussion / Re: T-D 3 axis contoller
« on: June 07, 2014, 12:29:43 AM »
Just an update in case its of any help to some one with similar problems.
I contacted a very knowledgeable local technician and sent him pics and a description of the symptoms.
Here is reply..
First of all, our Chinesian friends got a couple of things wrong, as their service departments always do. Replacing the 3 pin 12 Volt regulator (a stock item in my workshop) will probably restore a few functions in your machine, but the spindle motor will be still permanently on. Replacing the IRF740 power MOSFET will probably cure this problem.
First of all it should be established what's gone wrong. The IRF can be checked for short circuit with a simple Ohm meter. The 12 Volt regulator with a voltmeter. If pin 3 the output pin gives you 12 Volt the thing works, if it gives you nothing, the thing doesn't work.
At this stage I dare say a couple of checks should be performed before decisions are made.
I sent this email to supplier who replied with " we'll send you another board" .
So I'm just waiting on the new board to arrive.
In the mean time I have purchased some limit switches and a zero plate. I have no idea how to wire these in. Is it an easy thing or something a technician should do ?
I contacted a very knowledgeable local technician and sent him pics and a description of the symptoms.
Here is reply..
First of all, our Chinesian friends got a couple of things wrong, as their service departments always do. Replacing the 3 pin 12 Volt regulator (a stock item in my workshop) will probably restore a few functions in your machine, but the spindle motor will be still permanently on. Replacing the IRF740 power MOSFET will probably cure this problem.
First of all it should be established what's gone wrong. The IRF can be checked for short circuit with a simple Ohm meter. The 12 Volt regulator with a voltmeter. If pin 3 the output pin gives you 12 Volt the thing works, if it gives you nothing, the thing doesn't work.
At this stage I dare say a couple of checks should be performed before decisions are made.
I sent this email to supplier who replied with " we'll send you another board" .
So I'm just waiting on the new board to arrive.
In the mean time I have purchased some limit switches and a zero plate. I have no idea how to wire these in. Is it an easy thing or something a technician should do ?