How complex retro fit is a Fanuc O-M Alpha red cap controller to LinuxCNC

new2linux wrote:

andypugh, thank you for your help. The spindle has a belt driven "Positioncoder" with this information on the label: A860-0309-T302; No. ZA-0251669 120605; N1018523. This "coder" cable, plugs in the bottom of the spindle servo amplifier, the cable (a real set of wires) to the optical device plugs in to the same spindle servo amplifier, at a different location.
I have not had access to the x, y or z servo encoder, it looks like the z or x axis (are the easier motor to access) motor will need to be removed to get to see the encoder, I will do that if the above information is not acceptable.
The best I could hope for would be if the spindle motor could be disconnected after finishing the "baseplate" with hope is to mount a hi-speed single phase spindle to the end of the BT-40 machine spindle, even if it required a (properly sized) static-phase converter (vs. the 10HP RPC).

Many thanks, all suggestions are warmly welcomed.
 

A860–0309–T302 is a 1024 pulses/rev quadrature encoder used for spindle speed/position feedback .
Attached is Fanuc Connection details

sivaraj, many thanks. The RS232 port cable is connected in CNC Connector is a (M5). I keyed in the 0 to 900 parameters, I am still working setting the;

"4).Enter Servo parameter you can do this in DGNOS/PARAM button >SV-PRM soft key
or"

I saved by setting PWE = 0, will start fresh tomorrow, starting here:

"in parameter 8n00 & 8n20~8n24
Set values of 8n20~8n24 and 8n00=00 (Initial setting of digital servo parameter is done)
n=1,2,3 , three axis
5).Enter Spindle Parameter
Set the motor model code from the parameter list >parameter No 6633
Automatic parameter initialization function Parameter 6519 bit #7 =1"
Will review the parameters to compare to the master list from PC, for correcting.

sivaraj, thank you!

The RS232 port cable is connected in CNC Connector is a (M5). I keyed in the 0 to 900 parameters, I am still working setting the;
 
 

If you want to try RS232 , CNC should be in EDIT mode for Parameter upload or download
Set parameter value P38=10101000 (Either Channel 1 or 2 is RS232, PPR) and Full Key
Stop bits 2 > Parameter P2.0=1 &  P12.0=1
Baud Rate 4800 > Parameter P552=10 & P553=10
I/O = 0 or 1
ISO = 1

sivaraj, thank you! This is a pic of the ladder logic that I currently have. I am still working the limit switches. I will be away for part of the day. Many thanks.

This is a pic of the ladder logic that I currently have.

Ladder shows X21.4 input is OFF or Machine is in Emergency stop State. Just trace this
 

sivaraj, thank you for all the help, I am very grateful. I reached out to someone that had more experience than I do to understand what is happening with the controller as to tease out the proper fix.
What was discovered is there is no power going through the Main Relay (this is just after the main off/on disconnect in the electrical cabinet/panel; see pic) because no electric at wire T1 that would bring the contacts together in this Main Relay is the thinking.
When T1 is traced, it goes to the top of the 5th Fuse from the right. Going out of the bottom of fuse, is wire T4 that goes to the top of ALL 4 of the smaller relays, look for the pencil stuck in the start location of T4.
As a separate issue, the attached pic named; "This explains the issue" at the bottom read 6) parameter 269 to 274 have no data, all 0s. The machine builder sent this document, I believe some data is needed, and may be related to the power issue. The file the machine builder provided does not have any data in this set of parameters.
I have reviewed the parameters that I have keyed in manually, all match the file from the machine builder. The question I wonder about, if I get to a point where a download from a PC works, will that over right if I am not correct about the data I keyed in so far.

Many, many thanks, all suggestions warmly welcomed.