[Emc-users] Use Fanuc Servos & Amps with EMC2

[Steve from Tube Gauge]

Hi:
 
Is there a simple solution that some one has developed allowing EMC2 to connect to the Fanuc  drives and red cap motors?  A MESA board or something like that that could be wired inbetween like a converter?   I was looking through the achieves and noticed lots of issues but stopped after reading the 23rd entry of over 1200 due to brain overload.
 
If I was understanding the notes correctly it seems like Fanuc has their proprietary communications system that isn't easy to interface to the standard +- 10 VDC signal with incremental encoder feed back.
 
I am looking at a late 80's machine with an 0M control that could be ideal for an inexpensive retrofit if the motors and amps can remain.
 
Thanks for your help inadvance.
 
Best regards,

Steve Van Der Loo

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[Peter C. Wallace]

Date: Mon, 05 Dec 2016 10:35:12 -0500
Reply-To: "Enhanced Machine Controller (EMC)"
Subject: [Emc-users] Use Fanuc Servos & Amps with EMC2
Is there a simple solution that some one has developed allowing EMC2 to
connect to the Fanuc drives and red cap motors? A MESA board or something
like that that could be wired inbetween like a converter? I was looking
through the achieves and noticed lots of issues but stopped after reading the
23rd entry of over 1200 due to brain overload.
If I was understanding the notes correctly it seems like Fanuc has their
proprietary communications system that isn't easy to interface to the
standard
+- 10 VDC signal with incremental encoder feed back.
I am looking at a late 80's machine with an 0M control that could be ideal
for
an inexpensive retrofit if the motors and amps can remain.
Thanks for your help inadvance.
Best regards,
Steve Van Der Loo

It depends on the vintage of the equipment, of your motor drives part number
ends in 6057 or less, you have a analog +-10V drive which is easy to
interface, but if your drives part number ends in 6058 or greater, you have a
digital drive (PWM from controller, 2 analog current feedback channels from
drive = tough to integrate)


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Peter Wallace
Mesa Electronics

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(='.'=) This is Bunny. Copy and paste bunny into your
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[Greg Bernard]

Jon Elson has hardware to do just that:
 Pico Systems :

|
| |
Pico Systems :
Pico Systems : - Analog Servo Interface (PPMC),Accessories,PWM Servo Systems,Stepper Controllers,BeagleBone, | |

|


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From: Steve from Tube Gauge <***@tgifinc.com>
To: emc-***@lists.sourceforge.net
Sent: Monday, December 5, 2016 9:35 AM
Subject: [Emc-users] Use Fanuc Servos & Amps with EMC2

Hi:
 
Is there a simple solution that some one has developed allowing EMC2 to connect to the Fanuc  drives and red cap motors?  A MESA board or something like that that could be wired inbetween like a converter?   I was looking through the achieves and noticed lots of issues but stopped after reading the 23rd entry of over 1200 due to brain overload.
 
If I was understanding the notes correctly it seems like Fanuc has their proprietary communications system that isn't easy to interface to the standard +- 10 VDC signal with incremental encoder feed back.
 
I am looking at a late 80's machine with an 0M control that could be ideal for an inexpensive retrofit if the motors and amps can remain.
 
Thanks for your help inadvance.
 
Best regards,

Steve Van Der Loo

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Emc-users mailing list
Emc-***@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users




------------------------------------------------------------------------------

[Jon Elson]

Post by Greg Bernard
|
| |
Pico Systems : - Analog Servo Interface (PPMC),Accessories,PWM Servo Systems,Stepper Controllers,BeagleBone, | |
|

Well, my stuff does NOT use the existing Fanuc servo drive. I do have
six-step brushless servo drives that can be run from my PWM controller,
but they are not capable of driving the larger brushless motors to full
peak torque. The first brushless drives used SIX PWM signals from the
controller to EACH drive. I don't think they ever had an analog-input
servo amp for the brushless motors.

There are some other drives from AMC and such that can deliver more
current and take PWM input and Hall signals. My Fanuc converters (two
models, for first-generation and later serial Fanuc encoders) will give
the Hall signals.

Jon

[Peter C. Wallace]

Date: Tue, 06 Dec 2016 10:00:17 -0600
Subject: Re: [Emc-users] Use Fanuc Servos & Amps with EMC2

Post by Greg Bernard
|
| |
Pico Systems : - Analog Servo Interface (PPMC),Accessories,PWM Servo Systems,Stepper Controllers,BeagleBone, | |
|

Well, my stuff does NOT use the existing Fanuc servo drive. I do have
six-step brushless servo drives that can be run from my PWM controller,
but they are not capable of driving the larger brushless motors to full
peak torque. The first brushless drives used SIX PWM signals from the
controller to EACH drive. I don't think they ever had an analog-input
servo amp for the brushless motors.

I think I had the dividing part number wrong but for example a Fanuc
A06B-6050-HXXX is definately a AC servo drive with analog inputs:

https://s3.amazonaws.com/Icarus/DOCUMENTS/Fanuc_Manuals_1785.pdf

( some random link to a manual )

There are some other drives from AMC and such that can deliver more
current and take PWM input and Hall signals. My Fanuc converters (two
models, for first-generation and later serial Fanuc encoders) will give
the Hall signals.
Jon

Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.

[Jon Elson]

Post by Peter C. Wallace
I think I had the dividing part number wrong but for example a Fanuc
https://s3.amazonaws.com/Icarus/DOCUMENTS/Fanuc_Manuals_1785.pdf
(

Thanks! The problem with Fanuc is they made a VAST variety of products,
each just a little different. I try to keep track of which serial
encoders work with my converter boards, and it is maddening. They have
hundreds of different models at the same resolution, all with slightly
different configuration.

I only know a little about the servo amps.

Jon

[Jon Elson]

Post by Peter C. Wallace
O
I think I had the dividing part number wrong but for example a Fanuc
https://s3.amazonaws.com/Icarus/DOCUMENTS/Fanuc_Manuals_1785.pdf

Yes, this applies to their first generation of brushless motors/drives
from 1984. I didn't know that these existed, thanks! It makes sense, as
these could be used in place of their DC brush servo amps without
changing the control.

Jon