KFLOP with linear encoder

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Igor
Posts: 53
Joined: Wed Dec 25, 2019 11:37 am

Re: KFLOP with linear encoder

Post by Igor » Tue Feb 04, 2020 5:56 pm

The last two screenshots may be helpful to you in understanding the problem. I sent a video of "MOTOR OFF" there showed the behavior of the encoder when the axle is mixed into the manual. Adequate position miscalculation occurs. The counter stands still, but once the motor is turned on, endless running occurs even when the axle is stationary. Wires to the "twisted pair" motor on the encoder standard wires "shielded."
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3.JPG
3.0.JPG

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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Tue Feb 04, 2020 6:23 pm

It seems Stepper Motor noise is affecting the encoder signals.

Noise and grounding is complex. You might try:
  1. Shield and Earth GND the Stepper motor and wiring.
  2. Shield the encoder cable
  3. Connect encoder shield to KFLOP GND on KFLOP end only
  4. Use short wires
  5. Add 150 ohm Encoder signal termination at KFLOP
  6. Isolate KFLOP GND from Earth GND
  7. Use differential encoder signals by adding differential receivers such as this.
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
Posts: 53
Joined: Wed Dec 25, 2019 11:37 am

Re: KFLOP with linear encoder

Post by Igor » Tue Feb 04, 2020 6:35 pm

An encoder with manual mixing at a space of 293mm shows a position of 291838. Length of connecting wires is 0.8 meters. Kflop connected only one motor and encode,
can you show me an example of the right (standard) work of the encoder?
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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Tue Feb 04, 2020 6:56 pm

Hi Igor,

The video is of no help without a description of what are the conditions and what you are doing.


can you show me an example of the right (standard) work of the encoder?
The red line should be smooth and follow the motion of the axis. Such as:

Image
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
Posts: 53
Joined: Wed Dec 25, 2019 11:37 am

Re: KFLOP with linear encoder

Post by Igor » Tue Feb 04, 2020 7:19 pm

I got this result. Connected the GND encoder to the GND Kflop. I await your further instructions. Chinese had a separate GND wire
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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Tue Feb 04, 2020 7:30 pm

Hi Igor,

You didn't show Position.

Also Save Data and attach it here.
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
Posts: 53
Joined: Wed Dec 25, 2019 11:37 am

Re: KFLOP with linear encoder

Post by Igor » Tue Feb 04, 2020 7:57 pm

Have drift at micro mixing.
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1.JPG

Igor
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Re: KFLOP with linear encoder

Post by Igor » Wed Feb 05, 2020 3:19 pm

Good Afternoon Tom can I hear your further setup recommendations?
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1.3.JPG

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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Wed Feb 05, 2020 6:41 pm

Hi Igor,

You didn't Save Data and attach it here.

Also post all your 3 Axis channel Screens: Step Response, Config/Flash, and IIR Filters.
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
Posts: 53
Joined: Wed Dec 25, 2019 11:37 am

Re: KFLOP with linear encoder

Post by Igor » Wed Feb 05, 2020 7:47 pm

I do only one X axis at a time. All other axes in step/dir
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a3.JPG
a2.JPG
a1.JPG
a.JPG

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