Originally Posted by
biggalis
Hello all. I have a problem with alarm 39-137. An alarm is being posted by the spindle axis drive in APC rack 3. (Siemens 611 node address 5).{SPINDLE3ZSW1BIT 3}{SZ_FAULTPRES}is ON.
Remedy> Clear the alarm .Press the R F iluminated LED reset button{just below the X411 connector} on the drive.The LCD display should change to ____run and the green RUN LED{just below the X423 connector} should come on. Clear the APC Rack Communication and Encoder Error alarms that will have been posted on the control.I have done all this but again the problem exists and does not return to ___run.
we have a c.n.c 3 axis machine Cincinnati arrow 2, with siemens
acramatic control 2100,vmc 4.13 kk 010707 with
service pack 6.
Control serial number is: 51-A21001Y-09751..
The alarm being posted on the screen is 39-137 NCA spindle drive alarm when i try to release the red power button.
?efore that fault many years now we had a problem with the spindle when it was spinning at over 1200 rpm and we wanted to stop it from spinning it was falling and I had to turn it off from the main supply and turn it on again. ?therwise I had to reduce the speed on MDI gradually by 200 rpm until it reached below 1200 rpm to press the stop. We worked this way for many years since we couldn't find the right technician to fix it for us. A few days ago I thought about looking at it and taking it out and putting in the cables just in case that it doesn't make any good contact. since then I have the error that I describe to you above and I can't even work as I did.The old problem was something about the brake from the spindle i think. It could not stop softly over 1200rpm and the Z axis was falling abruptly when that happens.
But now we have also the problem which I described to you above.