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Precourt,

If you haven't already turned the potmeters concerning the firing if the IGBT's on the drive's, then it is best to leave them where they are, because these are not different using the...

Precourt,

Now everything is operating. I had to compromise the max speed and acceleration (and of course deceleration) for a more smooth run, but that's all due to the wear of the complete...

Darek,

No, i'm dealing with a servo (not a stepper-motor) so my input is 'number of counts to move'. The feedback to the controller is the encoder of the motor, maybe in a later stadium I'll...

Using a motion controller from National Instruments (the 735x-series), I closed the position-loop.

It took some time to figure out all the possible directions (for limit switches,...

Thanks for all the replies, they have been really helpfull.

I got hold of some more detaild schematics of a slightly different (i think newer) type of velocity unit for Fanuc 6M. These helped me...

Thanks Al

I did change the tach-direction, but now the motor vibrates as soon as I enable the VCMD signal (0 Volt). A red OVC-LED lights up and the motor stops. Is this an overload or something?...

Hello,

It has been while, but now i'm ready for the most important part. Trying to close the velocity loop.

@ Dan:
Can you tell me how to set the board to test "open loop"? Because the board...

Thanks for all the info.
Wow this is truly one of the few usefull forums on the i-net.

@ NC Cams: I do have some diagrams (for model 10 and 20 servo's) and I can confirm your pin-outs. :)

@...

A small question (with hopefully a small answer):

Those analog signals (VCMD and TSA) can be positive and negative for bothe directions?

@ NC Cams: Thank you anyway (I've read your PM, I suppose I don't have to reply anymore :) )

@ All_The_Man: Thanks again, for the CAV pinout.

@ Dan Fritz: This is very helpfull to me, because...

In relation to this, I'd also like to know the pinout of the CAV-connector of the motherboard (A20B-0008-0410/09D) of the Fanuc 6Mb controller. This is the connector from the motherboard to the...

@ NC Cams: You've got a private message (PM).

@ All_the_man: Thanks. This pinout is a big step forward for me.

Hi all,

I'm trying to make a multi-purpose X-Y-translation table from an old Matsuura milling-machine. It has a Fanuc-6MB controller.

My goal is to change to a controller which I program with...