brixia

Hello, can i use the file UMAC to the power pmac? or i have to rewrite all.. Thank you

Hello, last month we tried to put the pmac frequency from 80 MHz (I52=7) to 60 MHz (i52=5), until now we had no problems....

Hello , the CPU has been changed twice in the last months , anyway the firmware release is 1.945 Thanks

Hello guys , looks like we are on the right way to solve this problem. A few moths ago we moved the jumper E 34 to E35 (encoder sampling frequency) but the errors were worst , so we went in the other direction moving the jumper to E34A which is the fastest encoder sampling frequency. At the same time we tried to increase the pmac frequency from 60 MHz (I52=5) to 80 MHz (i52=7) but again the errors were worst , so we went in the other direction with 40 MHz (I52=3). With this configuration I52=3 and the jumper for the encoder sampling frequency put on E34 we are experiencing no errors for the last 2 months , hopefully we are on the right way , what do you think ?Does this make sense to you ? For us it make no sense but looks like it works !!!

Update.. the other day we worked on the machine, we connected the Fluke 435 Energy Analyzer and we moved the jumper from E34a to E35, ( Encoder Sampling Clock Frequency Control) the Pmac 0 not it enabled axes, we had to put the jumper on e34a to run the machine, it is the first time that we are experiencing a thing so strange... some ideas?

add more information, - the problem occurs on two different cards, inserted in two different rack GE, 1 and 2. - the transducers are linear scales TTL Heidenhain LS 473C (LS 477C) or outputs simulated by Bosch drives for spindles. - as said before ALL PMAC cards have been replaced and the power supply of the rack GE. - the optical scales and cables have been replaced. - the error occurs on average monthly :( we have 200 other machines with the same configuration,work fine.

Goodmorning, we have the problem in subject... occasionally happens that the TP1 loses the position of the axis, the cards are inserted into a rack GE Fanuc 90-70, and have the accessory 24, firm CPU 1.947 - we have all changed and cards. - we have changed the cable of the optical scale - check noises - inserted Heidenhain PWM8 after the optical scale, detect the loss position, the optical scale seems good. The strange thing that the variation is always a multiple of 2, 16,32,64 cts, we have many other machines with the same system, this is the only one with this problems. You have any suggestions?? Thank you