Decke Maho DMC100V Possibility of retrofitting

PCW wrote:

I suspect the issue to getting those drives to work is that the controller was probably
providing the torque ( current ) control loop. That is, there appears to be analog current
feedback from the drive. This is similar to Fanuc drives of the same vintage. At one time I had
started the design of a interface board for the Fanuc drive but never finished it.
It had the drivers for the differential  PWM the Fanuc uses and the 2 channels of A-D
for the current feedback.

I suspect its easier to just replace the drives/motors, unless you want to deep-dive
in to a fairly complex project.

 
 

Replacing the motor may be a last resort as it is large and very expensive.
I took out the SIMODRIVE611 piece. Found the IGBT part. It doesn't look very complicated. So the idea was to test it out before replacing it.
I used to do STMBL. and it may be adapted for use. But there is a problem with IPM 1200v
So I want to experiment with 3ppwmgen. Hope you support the 7i95t firmware again like you did in the past. 7i95t_5abobd

Thank you for your support.

There is more
www.google.com/search?client=firefox-b-l...+site%3Alinuxcnc.org

I can make tpwmgen firmware for the 7I95T when I get a chance
Note that without an A-D and current control Operation would not be ideal

A better solution would be something like STMBL but just the control part
 

PCW wrote:

I can make tpwmgen firmware for the 7I95T when I get a chance
Note that without an A-D and current control Operation would not be ideal

A better solution would be something like STMBL but just the control part

 

I've been doing STMBL for a while now.

I searched for an IPM 600V using the FNA25012A, but I was sent non-ordered products twice by Chinese sellers, so I thought this product was no longer available. So I haven't continued with it yet.

Anyway, I still want to test it. 3PWM Run in V/F mode for the spindle. Because I can't find a large IPM.

7I95T config with 3x three phase PWMGens

 

 

wrote:

wrote:

I suspect the issue to getting those drives to work is that the controller was probably
providing the torque ( current ) control loop. That is, there appears to be analog current
feedback from the drive. This is similar to Fanuc drives of the same vintage. At one time I had
started the design of a interface board for the Fanuc drive but never finished it.
It had the drivers for the differential  PWM the Fanuc uses and the 2 channels of A-D
for the current feedback.

I suspect its easier to just replace the drives/motors, unless you want to deep-dive
in to a fairly complex project.

 
 
Replacing the motor may be a last resort as it is large and very expensive.
I took out the SIMODRIVE611 piece. Found the IGBT part. It doesn't look very complicated. So the idea was to test it out before replacing it.
I used to do STMBL. and it may be adapted for use. But there is a problem with IPM 1200v
So I want to experiment with 3ppwmgen. Hope you support the 7i95t firmware again like you did in the past. 7i95t_5abobd

Thank you for your support.

I have a Cincinnati Milacron lathe it came with Arca drives. I kept the 10hp axis and 60hp spindle motor and replaced the drives. If they are Brushed DC servos with tacho feedback, i'd suggest searching for Siemens simoreg or glentek pwm brushed drivers, they work good, can be had affordably used and will work with the mesa hardware.