DRO problems

[John PurdyParticipant @johnpurdy78347]

Just over seven years ago I installed a Newall DRO on my Taiwanese VMC. It consists of a DP700 readout and two Spherosyn encoders on the X and Y axis. Up to about two years ago it has performed flawlessly. But then every couple of months or so one of the display readouts jumps exactly .5000" up. It seems to happen whether the table is being moved or not. It's always an increase of .5000", never anything else. If I reset the display to it's former value then it reacts normally till it does it again a couple of months later. I have swapped the cables on the display and the error appears to follow the encoder, but I'm not positive, I wasn't keeping a log of when it happened. I have now been keeping a log and in the four times it has occurred since Jul last year it has always been the Y axis display ( the cables were not switched). The next time it happens I am going to switch the cables and see what happens.

Has anyone else experienced this fault?

Over the last year I have sent two emails to Newall's tech help via their web site but have never received a response.
John

Edited By John Purdy on 29/11/2019 22:59:40

[John PurdyParticipant @johnpurdy78347]

[Nick M0NPHParticipant @nickm0nph]

Not the sort of service i would have expected from this company especially given the price of them

not impressed

Nick

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