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Makerbase (new) 84200hp 'quirky' on/off 'bug'?

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flez1966
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Joined: 2024-03-16 14:49
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Makerbase (new) 84200hp 'quirky' on/off 'bug'?

There’s a possible fault on mine, the ‘sw’ connection only works every 2nd toggle to switch and the voltages dont seem right. ie

h = on sw=3.25v
l = off sw=0v
h = on sw=3.0v <-----
l = on sw=0.125v <------
h = on sw=3.25v
l = off sw=0v

repeat…

SW line is connected to my bike alarm/ign. control is via pc123 opto-coupler as the output is 84v. vesc GND and SW are connected direct to opto-coupler.

I have already had 1 runaway event with it jammed at 100% throttle on my 3kw bike, thankfully bike was on a stand. unplugging throttle did not stop this...and it would not turn off I had to find my phone to disable the bms. 

video slowly uploading at 
https://youtu.be/DoDVEkoOhfo

https://photos.app.goo.gl/E5KZCgSAuPWfv67t5


 

NOAI
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Joined: 2020-09-23 10:43
Posts: 20

Hi Read Datasheet for limitation of pc123 max 70V and do not forget bouncing voltage between VDC an GND  Vceo-? Connect it to 5V and GND.

B1996
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Joined: 2022-10-07 15:44
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I have a pair aswell, it works properly with App settings -> Shutdown Mode ALWAYS_OFF and TOGGLE_BUTTON_ONLY

With the timed ones it doesn't seem to work/needs to be switched off 2 times for whatever reason.