ESC programming

[chunkymonkey28]

Hey guys,

Got a Himodel 125A for my boat project. I need to program it, and I don't know what to select lol. The motor is a Feigao 14L 540 sized motor. The battery is a 3S.

I highlighted what I think should be correct.



Options of set up:
1. Cut-off voltage
option 1. Ni-Mh battery, auto setup
option 2. cut-off for 7S lipo
option 3. cut-off for 6S lipo
option 4. cut-off for 5S lipo
option 5. cut-off for 4S lipo
option 6. cut-off for 3S lipo

2. Start-up mode
option 1: auto set-up throttle range
option 2: fixed throttle range
option 3: high acceleration (hard start)
option 4: low acceleration (soft start)

3. brake
option 1: no brake
option 2: light brake
option 3: medium brake
option 4: heavy brake

4. Running features
option 1: default running direction
option 2: reverse runing
option 3: hard brake
option 4: soft brake

5. Timing modes ???????
option 1: 2°
option 2: 7°
option 3: 15°
option 4: 30°

6. PWM modes ????
option 1: 8K
option 2: 16K

Any input thus far would be great. The things I need the most help on are timing and PWM modes, or at least a definition of them

[chunkymonkey28]

I figured out the PWM mode. So any timing help now would be great. I was thinking 7 degree timing to start with????

[Flying Scotsman]

7 degrees...no brake..soft start, my 2 cents on a controller I have never used

Douggie

[domwilson]

Being that it is a 2 pole motor, I would go with 2 degrees on the timing, option 1.

[DISAR]

2 degrees is safer, 7 degrees may increase your speed but motor will run hotter and more amps. Start with 2 and check temps, then try 7 and check again. No brake

[Brushless55]

Kinda like to jump into this thread, if that's ok..
I have the 200A version in my Mean Machine and have noticed I am not getting full revs out of my motor?
I have no idea why this is.. I put this esc in my UL-1 and pulled the trigger and noticed it does not have the peak rpms like the UL-1 esc..

anyone have any ideas why?

[Flying Scotsman]

What motor, new or abused and what degree setting

Douggie

[Brushless55]

What motor, new or abused and what degree setting

Douggie

Thanks Douggie, esc is new ad I am using a 8XL new, timming is set to defalt.. I think that is 1* for 2-4 pole motors..

[domwilson]

In the manual. Does anyone know exactly what "Full Open" and "Full Close" mean? I would think that "Full Open" is the same as Full throttle.

[785boats]

Chunky monkey.
I also set mine to option 4 in start up mode. I believe, from working with full size variable frequency speed drives with soft start, the start up current spike is a lot less. A bit easier on the ESC.
Definitely select the No Brake option. I am familiar with dynamic braking & generated voltages but Disar posted an article on it in relation to ESCs that puts the concept across clearly & concisely. Thanks Disar. Everyone should read this.

http://mgm-compro.com/pdf/en-motor-braking-050409-g.pdf

If the brake function is set to 'ON' The Himodel ESC automatically brakes for 3 seconds, I think, when you release the throttle.

If you simply google PWM you can learn as much or as little about Pulse Width Modulation as you like.
As others have suggested, low timing to start with. Its the only one I ever use. I've never tried higher myself though.


Brushless 55
Perhaps selecting 'Option 1' in start up mode might give you full range. It should be set at the factory as default setting, but ...Who knows?
Also I have heard that some transmitters require the endpoint adjustments to be taken out to 125% to get full range on some ESCs. I'm not sure personally, but someone will be able to advise on that .

Domwison.
I've always taken it to mean full throttle.

[Brushless55]

not sure if this helps but I am using the stock radio from my UL-1 on my MM

[DISAR]

When I had this ESC with a Feigao 9XL, when changing the timing from 2 to 7 there was a very noticeable difference. Maybe it is a timing difference between the two ESCs.

[Brushless55]

Ok, that just made me think of something
does the UL-1 esc have some timming in it?
maybe thats why their was a noticable difference..

[Flying Scotsman]

The Ul-1 Esc would be timed for a 6 pole motor, I presume?

Douggie

[Brushless55]

Possibly then, the UL-1 esc is set to 7*
and my HM200A is at 1 or 2*
That would explain the difference!
Thank you