We have a mv junior at the shop but when i turn it on it says jog rset and EMG at the bottom of the crt. it won't allow me to enter MDI ,EDIT ,MEM or HANDLE modes. The EMG makes me think that the emergency stop button is on but it is not. We just took the cover off to tighten the belt on the motor/spindle. could moving the motor have something to do with this? Any suggestions would be greatly appreciated.

It seems like you could have low voltage DC missing somewhere. If by turning the function switch, the display does not change to indicate the function like EDIT, MEM etc look on the diagnostic page for the input bit display and rotate the switch and see if you can see a bit pattern changing in the word assigned to the switch inputs.
If you see nothing changing, check the 24v supply to the pendant.
It appears you have a Fanuc control? what model?
Al

yes you are correct the controller is a fanuc 10m. We think that something must have gotten shorted out when we were working on it.

If you look in the diagnostic pages DIO page through while turning the switch and you will find one page that has all the pendant switches on it, this will tell you if the function switch is working, if you see no changes then I would look for a power supply problem 24v
Al

thanks for the info. It is not a switch on the controller it is several buttons on the panel MEM EDIT JOG RAPID etc..
None of them will work or light up. You cannot even turn on coolant.
You can However change the display from POS screen to PROG screen and see the prog in memory.

We have a Kuraki with a M15 (M?) controller. We normaly get that error when the machine hits a limit during alignment, if the machine was too close to the limit when powered on.

On our machine you have to hold a yellow READY button and hold the green button next to it (the button that powers on the axis drives/spindle). You can then only use the hand wheel to get the axis off the limit switch and clear the error.

Charlie