What parameters to program into 12FET MK2

Batteries, Chargers, and Battery Management Systems.
Post Reply
User avatar
MrKang   100 W

100 W
Posts: 297
Joined: May 01 2009 12:52am
Location: The Netherlands
Contact:

What parameters to program into 12FET MK2

Post by MrKang » Jul 25 2012 3:23am

Hi you guys,

I now have a new setup for my scooter and it is the first time i want to use the regen function.
My first setup had 24S lipo on a 12FET controller, but with no experience how to setup the regen parameters i blew up my controller.So i bought a new one from LYEN and didn't use it anymore.

Now my new controller is setup with a 28S LifePO4 pack 20AH.
My question is...what parameters do i have to program for not blowing up my controller again..

Thanx for the help
MrKang E-Scooter : 24V 750W Bosch Motor modified with YK-43 48V 1kW on 12S6P Lipo - top speed 44kmph
Xinling XTD800A : LYEN 4110 72V (modified for safe 100.8V with extra cooling) - 24S4P/100.8V 25Ah Turnigy + CA with Datalogger + SOUNDSYSTEM + USB power outlet + 78km top speed(120%)
MrKang Retro II : in progress.. ** 12FET MKII LYEN + 28S 20AH LifePO4 cells **
Project link [/color]: http://endless-sphere.com/forums/viewto ... 10&t=13442

User avatar
hjns   100 kW

100 kW
Posts: 1273
Joined: Aug 20 2011 11:05pm
Location: Basel, Switzerland

Re: What parameters to program into 12FET MK2

Post by hjns » Jul 25 2012 4:48am

MrKang wrote:Hi you guys,

I now have a new setup for my scooter and it is the first time i want to use the regen function.
My first setup had 24S lipo on a 12FET controller, but with no experience how to setup the regen parameters i blew up my controller.So i bought a new one from LYEN and didn't use it anymore.

Now my new controller is setup with a 28S LifePO4 pack 20AH.
My question is...what parameters do i have to program for not blowing up my controller again..

Thanx for the help

Hi MrKang,

When buying a controller from Lyen, he usually sends out a PM with a link to some webpages with most of the info. You can also send him a PM asking for the formula to calculate the correct LVC for your controller.

In general, it depends on how you blew your controller in the first place. I see from your signature that you run a 4110 FET at 100V. That means you are already pushing the controller over it's limits, making failure of your cntroller quite predictable. There are no programming settings that will prevent you from blowing your controller (other than setting LVC at 100V) when you feed it a voltage higher than its rated for.
Henk


All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence

Trackman417   10 kW

10 kW
Posts: 840
Joined: May 05 2011 9:25am
Location: Schenectady, New York

Re: What parameters to program into 12FET MK2

Post by Trackman417 » Jul 27 2012 9:36am

Something that will really help out: Don't regen when you are at the max voltage of your controller. The regen will bring the voltage of the battery pack up a bit and that could have been the final "push" your controller needed to say bye bye.
K2 Sidewinder
H4065 36 mph
20s2p 10aH lipo battery pack
If it didn't kill you, it just built your character.
You know your bike is powerful when even you, the builder, can't control it.
Customer 00001 at our very own Bigmooses online store http://mtg-technologies.com/zencart/ Great guy, great products.

User avatar
MrKang   100 W

100 W
Posts: 297
Joined: May 01 2009 12:52am
Location: The Netherlands
Contact:

Re: What parameters to program into 12FET MK2

Post by MrKang » Jul 27 2012 4:15pm

i allready did some mods on the new controller so it can handle 100V easily.
Lyen PM'ed me with the correct parameters ...sorry LYEN for waking you up at 4:13am... :oops:

It now works fine and the regen is working like a charm! Yesterday i drove 30km and used 12Ah ..my regen was a small 7.3% ..
MrKang E-Scooter : 24V 750W Bosch Motor modified with YK-43 48V 1kW on 12S6P Lipo - top speed 44kmph
Xinling XTD800A : LYEN 4110 72V (modified for safe 100.8V with extra cooling) - 24S4P/100.8V 25Ah Turnigy + CA with Datalogger + SOUNDSYSTEM + USB power outlet + 78km top speed(120%)
MrKang Retro II : in progress.. ** 12FET MKII LYEN + 28S 20AH LifePO4 cells **
Project link [/color]: http://endless-sphere.com/forums/viewto ... 10&t=13442

User avatar
Ypedal   100 GW

100 GW
Posts: 12524
Joined: Dec 27 2006 12:55pm
Location: Moncton NB, Canada
Contact:

Re: What parameters to program into 12FET MK2

Post by Ypedal » Oct 26 2012 11:29am

ok.. digging this up, i finally got my chopper dusted off and ebrake lever hooked up,

I have a 12 fet Lyen, 24S lifepo4, i know the e-brake works since it does cut off the throttle, tried with and without the white wire ( that turns regen on/off on my 18fet lyen ) but no joy.

Is this a USB program change or circuit board soldering thing ?

anyone ?.. pls. as i keep searching.
ES site status page:
http://www.ypedal.com/ES/ES.htm
----------------
http://www.ypedal.com

User avatar
Ypedal   100 GW

100 GW
Posts: 12524
Joined: Dec 27 2006 12:55pm
Location: Moncton NB, Canada
Contact:

Re: What parameters to program into 12FET MK2

Post by Ypedal » Oct 26 2012 11:48am

Found this :
http://endless-sphere.com/forums/viewto ... 16&t=14836

long read.. phew.. but i think it's in here... somewhere.
ES site status page:
http://www.ypedal.com/ES/ES.htm
----------------
http://www.ypedal.com

Post Reply