[paulr4]

I have an old fanuc servo I would like to use but need to find an appropriate servo amp, motor is:

40S/2000
A06B-0583-B065#7000

Searching the forum I found some fanuc data sheets which say the motor has a high resolution pulse coder 25000p/r but for the high resolution models it does not say whether it is absolute or incremental. Also is the encoder a standard quadrature or fanuc proprietary? Either way where could I find pinouts for it?

Matching it to the 'original' fanuc amp would be an option but I am not sure how.
Are there any model number references for fanuc servo amps like for the motors?

I plan on using Mesa cards and EMC to drive it, the final card will depend on if I can find an analog or pwm amp.

Thanks.

[yours_prabhat]

you can use the similar series of drive , what is the size you are planing for ? what is your interface type?But remember this type of motors and drives are specially designed for CNC machines closed loop circuits , some series like 30 180 and 300 are the open loop controller with the versatility you can use anywhere . My opinion only.

I have an old fanuc servo I would like to use but need to find an appropriate servo amp, motor is:

40S/2000
A06B-0583-B065#7000

Searching the forum I found some fanuc data sheets which say the motor has a high resolution pulse coder 25000p/r but for the high resolution models it does not say whether it is absolute or incremental. Also is the encoder a standard quadrature or fanuc proprietary? Either way where could I find pinouts for it?

Matching it to the 'original' fanuc amp would be an option but I am not sure how.
Are there any model number references for fanuc servo amps like for the motors?

I plan on using Mesa cards and EMC to drive it, the final card will depend on if I can find an analog or pwm amp.

Thanks.

[paulr4]

This is a 7kw motor, I would like to have close to full power. Application is basically a turning C-axis so it has to be closed loop. It will have to switch between turning (dumb) and then index or possibly live c axis if the mechanicals are strong enough to work without a brake.

I am just starting this project and since I already have this motor I would like to use it. My biggest concern is the encoder working with the servo amp. If I have to replace the encoder or get the wrong amp I might as well just get a matched motor/drive combo.

The final interface will be a mesa card, which one depends on the drive I end up with either analog or pwm

[yours_prabhat]

can you please give exact drive and motor number?

[Al_The_Man]

If using anything but Fanuc drive, the problem is that the commutation is Fanuc proprietary, There is a add-on available to convert the commutation to normal BLDC.
I have also fitted replacement encoders with comm. tracks.
I believe you will find that is hi-res differential/incremental for the encoder portion.
Al.

[paulr4]

Motor is:

40S/2000
A06B-0583-B065#7000

I don't have a drive yet, that is what I am trying to find.

I looked the at pico systems fanuc converter but it's max resolution is listed as 10k p/r and this endcoder is 25k p/r.

Changing the encoder does not seem worth it as it will be 1. Lower res encoder, 2. have to buy it and a drive, 3. This motor is only 2k rpm, I would prefer faster.

I have found some threads on the EMC forum about using HAL to translate fanuc signals to something BLDC can use but I have not seen the actual protocol anywhere

What I also cannot find is which fanuc drive, there are plenty on ebay with the correct ratings but will they support the encoder?

[yours_prabhat]

You can use fanuc drive with externel encoder upto 100000PPR
the encoder you are planning to use is a incremental or Absolute type of encoder?
Regards

Motor is:

40S/2000
A06B-0583-B065#7000

I don't have a drive yet, that is what I am trying to find.

I looked the at pico systems fanuc converter but it's max resolution is listed as 10k p/r and this endcoder is 25k p/r.

Changing the encoder does not seem worth it as it will be 1. Lower res encoder, 2. have to buy it and a drive, 3. This motor is only 2k rpm, I would prefer faster.

I have found some threads on the EMC forum about using HAL to translate fanuc signals to something BLDC can use but I have not seen the actual protocol anywhere

What I also cannot find is which fanuc drive, there are plenty on ebay with the correct ratings but will they support the encoder?

[paulr4]

I don't know if the encoder is abs or not. Unfortunately the only spec I have is a PDF I got searching the forum, it breaks down all the motor part numbers.

For all the other encoders it lists absolute or incremental, for the 3 high resolution part numbers (of which this is one -65) it only says 'high resolution pulse coder'

[Al_The_Man]

How many pins does the MS connector have 17 or 19p? I think you will find it is incremental, get the pin out and do a test.
Also there should be a number on the encoder itself.
If it is a 19p MS you may be out of luck.
Al.

[paulr4]

Unfortunately it is 19pin , so that means absolute encoders? Do you know where to find pinouts? I have not yet taken off the encoder cover, and there is no part no. (other than the motor) on the outside. Thanks.

[Al_The_Man]

Not sure if it confirms 100%, but usually the 19pin is either absolute or some other format, one of which requires an intermediary unit between encoder and system, IOW non-TTL differential.
Al.