I am looking for some help with a 12' accurpress with ETS 3000 and X, Y, and R Axis back gauge. When we try to calibrate the back gauge we get a 'Rockwell Drive BRUmaster 135 error.' I have tried changing the A/B drive because the status light was flashing green/orange. Now the new A/B drive is steady green but am still getting the error. Do you know what the error might be and how can we resolve it? Please let me know if you can help.