Exactly! A major quality failure having a customer guess the function of a sophisticated wired device. These types of failures should not be allowed through customs in any modern country.i'm guessing the white wires select low voltage cut off
Thanks guys, I checked my junk folder and I had a reply sometime in the last eight hours, so post buy support is 100% better in some ways. He gave a picture:whatever wrote:i just checked greentime website on aliexpress, seems only a few controllers have wiring diagrams, not sure if he has another website. there is a picture on the previous page of this thread with wiring diagram annotated.
here it is again shrunk down the size a bit so you can see the wiring ( from bonald)
xmasta wrote:Hey guys, thinking of buying one of the greentimes too and i'm currently running around at max 2000-2300w (16s lipo) and i wonder whats the difference between those two controllers:
http://www.aliexpress.com/item/24FET-IR ... 63950.html
http://www.aliexpress.com/store/product ... 63788.html
Is it only software settings for bigger safety margin?.. or could there be some hardware difference too, what you think?
Oh doh, ofcourse.. not sure how i missed that, must have been sleepy, knew about different mosfets but only compared the ending 10'sJohn in CR wrote:The cheaper one has cheaper irfb4410 mosfets which have twice the resistance (create more heat) and lower current ratings than the irfb4110 mosfets in the other one. Since you're running only a modest 30A peak battery current, I wouldn't bother with a big 24fet controller. Their 15fet will suit you fine, which is significantly more compact, though be sure to get one with 4110's for a more efficient more durable controller.
xmasta wrote:Hey guys, ...
Thanks for your advice. My Lyen controller didnt die due to mosfet failure, it developed third phase voltage drop for what the cause is unknown yet. Lyen kinda gave up on me and didnt respond anymore when mosfets were not the fault. (more on that on that controllers page: https://endless-sphere.com/forums/viewto ... &start=325 ) In short, 2 phases get lets say 14v AC on slow bench cruise but third at the same time gets 6.5v AC. funky noises and uneven motor drive follows.. cant drive like this.John in CR wrote:IME 15 fet controllers are significantly more robust than 12fets. There's something quite beneficial about having an extra mosfet on the high side of each phase. OTOH you shouldn't have had a problem with a 12fet pushing a 9C as listed in your signature as long as it had 4110s, so if it was running fine at first then maybe the failure was caused by improper installation (inadequate air flow over the controller or wiring got loose and shorted, etc) or improper controller settings.
I had much better results with Greentime's WUXI board controllers and Lyen's XieChang controllers with my motors. Comparable XieChang's always ran hotter than the WUXI's with my harder to drive motors. My only issue with Greentime's controllers was a lack of programmability and getting the initial settings exactly what I wanted. That was a few years ago, so Greentime has probably gotten better at that last part.