Hello all.
I am having problems with my CNC Deckel (Siemens 3M control).
I need to use my 4th axis (NCT 500) but the C axis does not finish the referencing, so it does not allow me to run a program.
When i try to reference the table, it rotates normally till it hit the reference switch, then it just stop. the green light on the console remains on (meaning it is expecting the machine to keep moving) but nothing else happens.
I believe the 4th axis reference routine should be the same as the other axis. Keep moving till they hit the reference switch, then reverse very slowly till it passes though the encoder reference point, then stop and set the displayed dimension to zero and mark that axis as Referenced.
I can rotate the table in jog mode, and also incrementally rotate it, the encoder is OK as the rotation is correct, I also sent the encoder to Heidenhein to test it, all is ok.
The servo motor is working OK and the hydraulic clamping is working OK.
I called the teck guy, and he already spent 4 days looking at the machine and still cant find the problem, he checked all the wiring, swapped the measuring boards in the controller, reloaded the machine software, the works.
The only thing that he thinks may be the problem is the PLC program. as the program in the machine looks different from the printout i got with my electrical schematics (incomplete)
Does anybody have a copy of the PLC program for us to try out?
My machine details:
Deckel FP4 NC
Ser. # 2810-3761
Serial number on side of electrical cabinet 12865 manuf. date 1985
Schaltplan 6003907510203
Anpabsteureung 60045000530202
Inside the cabinet on the controller:
Siemens Sinumerik 3M
6fc 3441 - 87d - 2
Any help will be greatly appreciated, as this machine has been a good machine when working 3 axis, very accurate and reliable. I got this machine about 5 years ago, and the rotary table never worked. But now I got a job that does not fit on my Mazak and I really need to get the Deckel to work.
Regards
Vladimir