Looking for an encoder signal multiplier
Looking for an encoder signal multiplier
(OP)
We have a customer who has a 512 counts/rev (A A\ B B\) encoder mounted to a rotating shaft. They have a custom PC HMI application that expects to see 2048 counts/rev for position tracking purposes. This application can not be reconfigured.
Has anyone heard of an encoder signal multiplier that you can wire the encoder to as an input, configure the unit for say quadrature (in my case) and on the output side receive an equivalent number of pulses (2048 in my case)?
Any information would be appreciated,
Thanks,
Greg
Has anyone heard of an encoder signal multiplier that you can wire the encoder to as an input, configure the unit for say quadrature (in my case) and on the output side receive an equivalent number of pulses (2048 in my case)?
Any information would be appreciated,
Thanks,
Greg





RE: Looking for an encoder signal multiplier
RE: Looking for an encoder signal multiplier
RE: Looking for an encoder signal multiplier
(To be a bit pedantic: an encoder does not have "counts". A "count" is a unit of a "counter". An encoder has "lines" and produces waveforms with "cycles".)
If you have a 512-line/rev encoder, the standard "times-4" decode produces 2048 counts per revolution. In this case a standard encoder interface chip such as the Avago (formerly Agilent, formerly HP) HCTL-20xx will automatically produce 4 counts per line.
You may just have a definitional problem here.
Curt Wilson
Delta Tau Data Systems
RE: Looking for an encoder signal multiplier
Thanks for the tip. We have come up with another solution that I think will be much "cleaner".
But to answer your question, to my knowledge the existing encoder outputs 412 full quadrature cycles per revolution.
And you are right, I should have checked my descriptions.
Thanks for your help and that device looks promising.
-Greg
RE: Looking for an encoder signal multiplier
http://www.lenord.com/technical_info/TI214_e.pdf
Please note this has SINE inputs and TTL outputs. They also have other version for TTL in/out signals.
RE: Looking for an encoder signal multiplier
Pse read my FAQ and answer a few questions:
Is the encoder used for both speed and position control?
What is the speed range? acceleration?
There are several ways to solve the problem depending on
the actual requirements and limitations.
Plesae read FAQ240-1032
WEB: <http://geocities.com/nbucska/>
RE: Looking for an encoder signal multiplier
http://www.mks-control.de/encoder_divider.html
Iv'e never used this product, but have used their IT251 divider.