LRP Flow - erratic running & intermittent problem on power up

[jason-l]

Just installed an LRP Flow Works in my B44.2, and have encountered an issue I've not experienced before. Hoping it's maybe something obvious...

When I switch on the motor sometimes spins-up (at low speed) for approx 1 sec before stopping. This seems to happen every time after battery reconection, but sometimes doesn't do it with the power switch just being toggled.

Also, if I hold a constant throttle, the motor speed frequently makes speed step changes (eg. slow, faster, slower, stop, slow, etc).

Re-calibrating, re-setting and trying another sensor wire hasn't worked... anyone else experienced this characteristic with any ESC?

For info: Rx is Futaba 603FS, servo is Savox 1258 and motor HPI Flux Pro 5.5. Motor is not meshed to the spur at the moment.

Cheers
Jason

[discothesnake]

Jason, I've had that issue with the motor turning over for a couple of seconds when it's first switched on. Usually I re-bind the receiver/transmitter and it resolves the problem. I know you use futaba radio gear but it might be worth trying.

Dave

[jason-l]

Hi Dave

Thanks for your reply.

I've tried rebinding Tx/Rx, and the issue remains.

Plus, the other issue is also present - the motor speed not being constant on constant throttle - very obvious step changes in motor speed, with it sometimes stopping then restarting too.

Will try my 2WD's receiver.

[discothesnake]

Sounds like a bum speedo.

[jason-l]

Originally Posted by discothesnake

Sounds like a bum speedo.

Yep, swapped out sensor cable, Rx, re-calibrated, and so on. Still the same... think I have to agree.

[Col]

Does it still do it under load - ie whilst driving?