SSI absolute encoders and analog servos
17 Jan 2017 05:15 #85892
by terkaa
Replied by terkaa on topic SSI absolute encoders and analog servos
Those are shared on page 10 of this thread....
Tero
Tero
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17 Jan 2017 12:06 #85905
by tommylight
Replied by tommylight on topic SSI absolute encoders and analog servos
Thank you, i already have them so i will give it a try today.
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17 Jan 2017 14:40 #85925
by PCW
Replied by PCW on topic SSI absolute encoders and analog servos
Unlike quadrature encoders, SSI encoders need a lot of encoder specific setup
so you need to get a number of things right for the SSI encoders to work:
1. Clock polarity
2. Data polarity
3. Number of bits
4. Gray code or binary data encoding
5. Extra pad or fault bits
Basically this means you need the encoder data sheet or you will be working in the dark
so you need to get a number of things right for the SSI encoders to work:
1. Clock polarity
2. Data polarity
3. Number of bits
4. Gray code or binary data encoding
5. Extra pad or fault bits
Basically this means you need the encoder data sheet or you will be working in the dark
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17 Jan 2017 16:05 #85939
by tommylight
Could not find anything about them except the wiring diagrams i have, nothing pertaining to usable info about encoders.
Terkaa, just checked the hal and ini files, they use core_sim4.hal, so it does not use actual hardware, when i remove that line, it does not start complaining about invalid icon size 48.
Replied by tommylight on topic SSI absolute encoders and analog servos
Unlike quadrature encoders, SSI encoders need a lot of encoder specific setup
so you need to get a number of things right for the SSI encoders to work:
1. Clock polarity
2. Data polarity
3. Number of bits
4. Gray code or binary data encoding
5. Extra pad or fault bits
Basically this means you need the encoder data sheet or you will be working in the dark
Could not find anything about them except the wiring diagrams i have, nothing pertaining to usable info about encoders.
Terkaa, just checked the hal and ini files, they use core_sim4.hal, so it does not use actual hardware, when i remove that line, it does not start complaining about invalid icon size 48.
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17 Jan 2017 17:49 #85969
by tommylight
Replied by tommylight on topic SSI absolute encoders and analog servos
Got to this point by trial and error.
See attached
See attached
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18 Jan 2017 06:18 #86033
by terkaa
Replied by terkaa on topic SSI absolute encoders and analog servos
I started with core_sim4.hal and modified it to working configuration But it is NOT simulation. It is just a file name...
Tero
Tero
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18 Jan 2017 06:54 #86035
by tommylight
Thank you very much.
Replied by tommylight on topic SSI absolute encoders and analog servos
Thank you Tero, i made a new config with axis as UI and added the stuff for SSI and feedback, got to show something, but still messy, will continue later.I started with core_sim4.hal and modified it to working configuration But it is NOT simulation. It is just a file name...
Tero
Thank you very much.
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