Analog spindle signal

[tfhess]

Uwe:
I take it the two caps and resistor are similar to the attached lower circuit diagram? And thanks Nigel.

[tblough]

All you need is a single 0.1uF non-polar capacitor across the two pins of H8.

[ShawnM]

All you need is a single 0.1uF non-polar capacitor across the two pins of H8.

Agreed, don’t over complicate things, just add a single cap. Then look at grounding the shielded wire.

[suntravel]

yes, the lower diagram worked best for me.

Uwe

[rk9268vc]

just put the cap across the Vout and COM (COM should be GND) on the driver side. You dont need a resistor because the wires will have enough impedance on their own unless really short. Also, we dont need a ton of filtering here unless your enclosure is exceptionally noisy

[Spartan117]

What kind of cable are you all using as twisted-pair-cable?
The only shielded, twisted pair-cables i know are ethernet-cabbles?

[cncsnw]

https://www.automationdirect.com/adc/sh ... gnal_cable

https://www.alliedelec.com/view/search? ... 2024%20awg

https://www.helukabel.com/us/products/p ... 21001.html

[rk9268vc]

What kind of cable are you all using as twisted-pair-cable?
The only shielded, twisted pair-cables i know are ethernet-cabbles?

I dont know what he is using,
but you can get thicker gauge twisted pair shielded cable by the foot from places like automationdirect

[tfhess]

If you are talking about VFD cabling, I used automation direct: Southwire VFD cable, 4 conductors (includes ground), 16 AWG, cross linked polyethylene (XLPE) conductor insulation material, overall foil and braid shielded, TPE jacket,

[Spartan117]

https://www.automationdirect.com/adc/sh ... gnal_cable

https://www.alliedelec.com/view/search? ... 2024%20awg

https://www.helukabel.com/us/products/p ... 21001.html

Ah, that did it, Helukabel is a german manufacturer, so I could just switch to the german homepage and find out how that cables are described here in germany.
Thank you very much!