Fanuc and 5i25/7i77 couple

andypugh wrote: Does a positive output from the 7i77 make the corresponding encoder count ?

On the datasheet motor I have find this . But I dont know if the 5v needed provide from the pcb or the 7i77.

My encoder is the ai1600 serie , so I have 16,000,000/rev . I need to put 16000000 in the encoder scale in the ini?

ligthmare wrote: My encoder is the ai1600 serie , so I have 16,000,000/rev . I need to put 16000000 in the encoder scale in the ini?

It should be the number of counts per unit distance. So for a 5mm leadscrew the scale would be 16,000,000 / 5
SCALE=3200177.8

I have been enter the new configuration , but I have a problem with the Enable.
i have been check the good clamp of enable on the 7i77 and I have shunt the prdy1 and prdy2 cable to simulate the relay.
But I don't have 24v on my Prdy1. and I cannot find the 24v pin chek on the PCB. i have control the 185v, 100v and 18v power supply , also the fuse on the PCB . all it's ok

Also I 'don't understand the Vrdy use.

VRdy might be the drive enable, indicating that the HV bus is up and ready. But that is a pure guess.

Ok thanks , so there are no link with the 24v start? I dont know if it's normal to don't have the 24v on prdy . Maybe it's generate after a signal? The pcb generate the 24v himself or Maybe I have forget to conect one transfo . I feel that strange .

It was a guess, I really have no idea, and have never even touched any Fanuc hardware.

Are there any manuals online?