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Flipsky FSESC75100 & FSESC75200 Phase Filtering

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j.konrad
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Flipsky FSESC75100 & FSESC75200 Phase Filtering

Does anyone know anything about the note Flipsky recently posted on their website regarding the prohibition on enabling phase filtering?

Phase filtering is not available for Flipsky ESC75100 and 75200!

Please turn off the phase filter function and choose "false" in vesc_tool when use firmware version on or above 5.3 (VESC_TOOL 3.01). Without turning off the phase filter will result in esc damage. Please do not restore the default parameters when using the wizard interface.

See: https://flipsky.net/collections/electronic-products/products/flipsky-fsesc75200-75v-high-current-200a-esc-base-on-vesc-with-aluminum-heatsink-for-e-foil-fighting-robot-surfboard-agv-robot-arm

So far, my email to Flipsky has gone unanswered.  Some of my observations:

The phase filtering configuration parameter is prefixed by FOC.  Is it only applicable to FOC mode?

It is enabled by default in both VESC Tool 3.0 and 3.01.

Judging by the VESC_75_300 schematic, it appears an analog switch (MC74HCV1GT66) is used to enable a simple RC lowpass filter (1k ohm x 15nF) for each of the phase current measurements.

I don't see these switches present on the FSESC75200.

Birnd
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Upgraded FW, ran FOC detection annnnd its gone(R Measured was 1mOhms with Phase filter default on). Sadly fried mine, it still drives but cogs alot with the old Motor Settings.

When downgrading the firmware FOC wizard doesnt work and FOC paramater detection gives unrealistic Values(R was about 49 mOhm, now it shows 370mOhm).

Ill try running the old Firmware with old Motor settings tomorrow, see if that helps.

Edit: Yesss, it runs with the old Settings, FW 5.2 and the new Vesc Tool. Lucky me.

 

Gatze
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One little capacitor and a bad parameter and then magic smoke...Maybe it would be better that the default parameter would change or something. Maybe somebody can explain if you use no filters but the parameter is 'use filter' why the board would fry.

NiZZioN
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So I think i ruined my FS75100 by leaving that phase filter on, is there anyway to repair it? Could you explain to me what exactly i fried or what i damaged? is it salvageable?
If not i'd have to buy a new one... really shitty

frank
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I don't think you ruined it. Actually it was already a ruin by design when you received it. It was a blindly copied product, running on GPL violating FW with no Source Code offer, since the company did not even have the source code to understand the product they offer themselves.

Gatze
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Saw also on Endless Sphere that they stole the 75100 hardware design from the original maker or at least used it for their onw benefit without informing  the original maker. And also don't make the software public....We should all boycot Flpsky on VESC products, but they have attractive price's, but also bad service ;)

https://endless-sphere.com/forums/viewtopic.php?p=1700766

xmp
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So what would happen if you leave the phase filters turned on? What component would get fried?

vadicus
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Not related to Flipsky directly but filters in general. First of all, there are two types of filters which you seem to mix up. 1k + 15f is the phase current filter. It can't possibly ruin any controller because it's just filters current readings, and if you don't have them or have them turned off, you would have overcurrent triggered more often. What likely fried your controller or whatever you bought from China is the phase VOLTAGE filters. I noticed that those filters are on most of the time and least in FOC mode but starting with 5.3, the software filter switch also enables an additional piece of code that that takes advantage of those filters. I've also noticed that the cap needs to be at least 220nf for the filter to work correctly. On my controller with 100nf, resistance and inductance detection causes negative current readings. With the filters disabled, however, all works fine.   

Prolive
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Hi

have same problem. Can you advise on how to get the older firmware which works on my motors. Any chance you can send link?

thanks

Peye

Prolive