My friend has an old Bridgeport with a Heidenhain VRZ 731 two axis display that counts down but has stopped counting up. Has anyone a circuit diagram so that he can hopefully trace the fault . Many thanks John
John, If you find a circuit please could you post a link to the source. I have one of these displays which is working fine but one day it might not........
Has your friend tried swapping the scales between X & Y and does the fault move from once display to the other?
If the signal from one of the quadrature outputs has been lost then I would expect the display to count one way only.
good luck
Bob
On the question of diagrams I too have a Heidenhain but it is a type
300.316 and would like to find a diagram if possible sonebody out there must have an old document under the bench. Have a look JohnPolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.