Quote:
Originally Posted by garymck
Hi,
Have just obtained an old Argo Navis (rectangular boxed version).
Had to make up serial cable, and a dual cable to connect the encoders.
When testing in Mode Encoder, either of the two encoders I have work perfectly on one channel, but not on the other. The faulty channel changes between 0 and 359.86 when the encoder is moved. Since the cables have been made identically, is it likely that the Argo is faulty? Anything else I should check? This happened with the original V2 firmware, and also after I reflashed with the latest firmware.....
cheers
Gary
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Hi Gary,
Congratulations on picking up a pre-loved Argo Navis.
By way of background, each encoder has two output channels known
as A & B.
If you see the MODE ENCODER diagnostic display alternating between
two values in the way you describe, it means that one of A or B on that
particular encoder path is open circuit somewhere.
If you made your own encoder cable, use a multimeter and perform an
end-to-end continuity test from the connector at the encoder end
to the RJ-45 plug end. If your multimeter probes aren't fine enough,
use a pair of fine needles affixed to the multimeter probes with rubber
bands so you can probe into the RJ-45 contact points.
Alternatively, if at some point in the past an incorrect cable was inadvertently
plugged into the Argo Navis encoder port, it might have blown one of the
protective ferrites. If you require further assistance, please don't hesitate
to email us at
sales@wildcard-innovations.com.au.
Best Regards
Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place, Mount Kuring-Gai
NSW. 2080. Australia
Phone +61-2-9457-9049
Fax +61-2-9457-9593
sales@wildcard-innovations.com.au
http://www.wildcard-innovations.com.au