# 75200 Pro VESC - Power Cycle Woes
**URL:** https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838
**Category:** efoils – Electric Hydrofoil Surfboards
**Tags:** vesc
**Created:** [August 10, 2023, 4:52am UTC](https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838 "2023-08-10T04:52:49Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@wuzbynny](https://foil.zone/u/wuzbynny)
#### Post date: [August 10, 2023, 4:52am UTC](https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838/1 "2023-08-10T04:52:49Z")
Hey all! I’ve JUST finished building my foil (build thread coming soon) and have run into problems with my VESC dying during detection.
Using VESC Tool I run the FOC motor detection and, as soon as the current starts to ramp up the detection fails and the VESC turns off, disconnecting from VESC Tool.
Any idea where to start?
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### Author:  [@edivory](https://foil.zone/u/edivory)
#### Post date: [August 10, 2023, 5:01am UTC](https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838/2 "2023-08-10T05:01:38Z")
The same happened to me when I wanted to perform the detection with a laboratory power supply. The current is insufficient and detection fails.
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### Author:  [@wuzbynny](https://foil.zone/u/wuzbynny)
#### Post date: [August 10, 2023, 5:20am UTC](https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838/3 "2023-08-10T05:20:50Z")
I don’t imagine that’s the case…I’m running a 16s9p - should comfortably deliver ~100a. Definitely something to consider though. I’ll try another supply!
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### Author:  [@Strongarm](https://foil.zone/u/Strongarm)
#### Post date: [August 10, 2023, 6:00am UTC](https://foil.zone/t/75200-pro-vesc-power-cycle-woes/18838/4 "2023-08-10T06:00:21Z")
It’s probably the usb cable being too close, and running parallel to the motor phase cables. This will induce voltage and noise in the serial data resulting in a dropped connection.
Seperate as much as possible and retry.