Help! AKA F**kin bikes

[WIX-ONE]

Me again!

Ok todays problem is as follows:

Went out riding and after about an hour the bike (Epure race 2021) kept dropping the map intermittently and returning to the clear light. No rhyme or reason to it, sometimes up hill sometimes down. Messed about abit and i could replicate it when the handlebars went full lock either way so faulty wire i thought, easy fix, trace the wire and sort it.

Got home, washed the bike, removed the fairing but now no power at all going to the map light (still power to the kill switch). 

My son has the same bike so i thought i'll try plugging in his map switch/map light but still nothing. Then i tried it with the throttle and now 2 bikes wont work!?!?!?

So i guess my question is does anyone know a good scrap man lol no really, could it be a short in the throttle/Map switch/Led doing this and could it kill the controller?

I'd much rather be able to sort this myself before going to the experts but i'm at a loss with it happening now on the second bike.

Help me Obi Wan Kenobi, you're my only hope!!!

Edited 21 hours ago by WIX-ONE

[konrad]

The controller is very well protected, so unlikely you killed it.

The LED returning to white (neutral) indicates the controller has somehow been power-cycled.  This would tend to imply intermittent wiring, or the battery itself is providing intermittent power.  

If you remove the rear mudguard, you can see a red LED on the controller itself. The following information comes from siliXcon (manufacturer of the controller) and could rule out a failure in the controller itself.

https://docs.silixcon.com/docs/hw/esc/Maintenance#verifying-motor-controller-readiness-for-operation

 

Quote

 

Verifying motor controller readiness for operation

The following procedure can be used to verify that a controller is functional and ready for operation.

1. Apply logic power to the controller by applying battery voltage to the POWER pin.
2. Verify that the LED status indicator (described in Product overview of the corresponding controller) on the controller is turned on for a few seconds after start-up and then turns OFF.
3. If the indicator is flashing or steadily turned ON, it indicates an error/warning or other fault condition within the controller. See the LED status indicator section in the Product overview chapter of the corresponding controller.

 

[WIX-ONE]

10 minutes ago, konrad said:

The controller is very well protected, so unlikely you killed it.

The LED returning to white (neutral) indicates the controller has somehow been power-cycled.  This would tend to imply intermittent wiring, or the battery itself is providing intermittent power.  

If you remove the rear mudguard, you can see a red LED on the controller itself. The following information comes from siliXcon (manufacturer of the controller) and could rule out a failure in the controller itself.

https://docs.silixcon.com/docs/hw/esc/Maintenance#verifying-motor-controller-readiness-for-operation

 

 

Hi mate,

 

The light doesnt go white, there isnt any power at all to the Map light or switch from what i can see since i returned home.

My sons bike worked fine until i tried connecting his map switch/light/throttle to the ports on mine (one by one)

Also no light on the controller, i found the led its opposite the Silixcon sticker but nothing when powered on, still getting power to the kill switch/battery indicator but i saw from your wiring diagram they dont go through the controller.

Going off the day i'm having it wouldn't surprise me if I've somehow fried both bikes (managed to lock the keys in my van twice today after never doing it in 30 years)

[konrad]

Sounds like you need to take a little break, away from the problem.  Some of the kill switch wiring does go to the controller.  Have you checked the 3A fuse that's by the controller?

[WIX-ONE]

13 minutes ago, konrad said:

Sounds like you need to take a little break, away from the problem.  Some of the kill switch wiring does go to the controller.  Have you checked the 3A fuse that's by the controller?

Haha yeah i'm not touching anything until tomorrow now with fresh eyes and head.

No, i havent, My logic is saying it has to be something like that or something tripped by a bad signal? due to the fault being replicated on 2 bikes.

I noticed on the parts diagram theres a 2A fuse also so i'll check that too

 

[WIX-ONE]

Just checked and all fuses are fine - Absolutely stumped

Everything in blue is working but nothing past that so could a faulty map switch, LED or throttle cause the controller to not get power?

Edited 1 hour ago by WIX-ONE

[konrad]

If the map light is not illuminated and the motor is not beeping, the controller is not being enabled.

I say this because, if the controller detects a problem with the throttle (for example) it will cause the motor to emit "protest beeps" by the same mechanism that it uses to make sounds when the map is changed.

The most likely problem is the lanyard kill switch is not enabling the controller.  See: https://www.electricmotiontech.com/home/em-epure-race/wiring-diagram#h.lio6f0vlp8ue

I suggest constructing a "failed lanyard bypass" as a test.

[WIX-ONE]

Konrad i cant thank you enough mate.

I just connected the kill switch from bike 2 to bike 1 and its worked!

The LED map light still doesnt come on when  you power the bike on (i cant remember if it did before or not) but once you attach the magnet it does so i'm happy with that, new kill switch over controller saves my pocket.

Thanks again for the help and also all the info on your website mate