Greentime controllers

With the dmm set to ohms I get about 10k resistance on all phase wires but blue. Blue has 0 resistance to positive or negative.
 
garfong said:
With the dmm set to ohms I get about 10k resistance on all phase wires but blue. Blue has 0 resistance to positive or negative.
Click to expand...
Blue sounds like you have failed hi and low side fets. I would pull it apart. Its recomended to replace all fets in parallel to the one that is failed shorted. Some people say replace all of them in the controller but I have NEVER needed to do that just make sure if you have a phase with one side failed replace all in that side of the phase or if both sides are failed replace all in the phase.
 
dnmun said:
0 ohms when forward biased doesn't tell you if it is dead. does your DVM have a diode tester function at the bottom of the ohmeter range?
Click to expand...
Yes sorry I always test on the diode test mode. This will let you test the internal diodes of the fets as you go. You need to test each phase to positive in both directions then each phase to negative in both directions. The diode test mode tries to force a current through the fets and in the one direction the diode will stop it so there will be nothing and the other it will read something like ~.4000 this is a measurement of a voltage drop across the diode and usually a good number is around .4 You will likely find a strange reading on the blue phase.
Note when not sure make sure you discharge the caps in the controller a resistor from + to - will work.
 
Using harbor freight dmm. Black probe on power connectors and red probe on phase wires.

4410 controller:
Black-Green (1 on left side of display)
Black-Yellow (1 on left side of display)
Black-Blue 002
Red-Green 493
Red-Yellow 490
Red-Blue 493

4110 controller:
Black-Green 477
Black-Yellow 478
Black-Blue 11
Red-Green 468
Red-Yellow 468
Red-Blue 002
 
garfong said:
Using harbor freight dmm. Black probe on power connectors and red probe on phase wires.

4410 controller:
Black-Green (1 on left side of display)
Black-Yellow (1 on left side of display)
Black-Blue 002 <Problem
Red-Green 493
Red-Yellow 490
Red-Blue 493

4110 controller:
Black-Green 477
Black-Yellow 478
Black-Blue 11 <Problem
Red-Green 468
Red-Yellow 468
Red-Blue 002 <Problem
Click to expand...
Now it would be good to double check... I alwas look close at the board for a peice of somethign shorting them like that and I tripple check the mesurements. I also look for flux (which absorbs water) to meybe to be in a spot to cause it.
You can sometimes see the fet that has failed with a crack (most of the time when I blow a controller they are someware across the shop ;) )
 
This is my last chat with Leo at greentime, this is a looser working for a rip off company IMHO so after almost 3 months of waiting he admits to the controller being sent back to them and refuses to refund or replace it.
Hello Leo,
My order number does not even show up on your website, can you send it to me Thanks
curtis parker(2013-5-10 10:17:6)
Leo
I am waiting for your responce for a long time now
Leo Liu(2013-05-10 07:19:44)
hi Curtis
Leo Liu(2013-05-10 07:20:17)
I confirmed this parcel was returned by China post, but we just got this info today, and the parcel still has not been sent back to our company
Leo Liu(2013-05-10 07:20:35)
Really so sorry for the inconvenience
Leo Liu(2013-05-10 07:20:52)
we can give you a full refund a send a new controller to you
Leo Liu(2013-05-10 07:21:02)
or
curtis parker(2013-5-10 10:22:55)
I need the controller but how long to get it.
Leo Liu(2013-05-10 07:23:23)
now we send the parcel from Beijing by China post
Leo Liu(2013-05-10 07:23:38)
shipping time to USA about 7-15 working days
curtis parker(2013-5-10 10:24:43)
do you remember the specs
Leo Liu(2013-05-10 07:24:58)
or if you can pay a bit more, we can send it to you by DHL
Leo Liu(2013-05-10 07:25:05)
plealse remind the specs. to me again
Leo Liu(2013-05-10 07:25:10)
please
curtis parker(2013-5-10 10:28:43)
50 amp, sensorless, self learning, 15 _4110 mosfet , how much phase amps wil it be set for. 15 days more will be acceptable but I need the order and tracking numbers.
curtis parker(2013-5-10 10:31:17)
how much more for DHL.
Leo Liu(2013-05-10 07:34:02)
this controller need to make a new one for you, we do not have it in stock now
Leo Liu(2013-05-10 07:34:07)
sorry
curtis parker(2013-5-10 10:35:30)
again I ask how long?
Leo Liu(2013-05-10 07:38:36)
3-5 working days processing time
curtis parker(2013-5-10 10:42:14)
maybe after me waiting so long for your product, your company can pay the extra expense of faster shipping, then I would be a happy coustomer. and would advise others to buy from you aswell.
Leo Liu(2013-05-10 07:51:03)
sorry, we also did not expect the returning, it is not our fault, China post will not return the shipping cost we paid before
Leo Liu(2013-05-10 07:51:25)
we really have low profit, hope you could understand
curtis parker(2013-5-10 10:53:24)
How many phase amps will it be set for? and please send order and tracking # to curtisparker8@msn.com
curtis parker(2013-5-10 11:0:12)
go ahead and ship me another one. 7 to 15 working days!
Leo Liu(2013-05-10 08:09:38)
a 15fet 4410 45amp model not ok for you?
curtis parker(2013-5-10 11:19:21)
I thought we agreed on 50 amps
Leo Liu(2013-05-10 08:21:34)
i will check how much you paid
curtis parker(2013-5-10 11:24:6)
just send any 15 fet 72 volt controller you have, I am very tired of this back and forth game. again please send trackin and order numbers when you get them.
Leo Liu(2013-05-10 08:32:53)
which Paypal account you sent money to us before
Leo Liu(2013-05-10 08:33:14)
you are not reliable, you only paid 45usd
Leo Liu(2013-05-10 08:33:28)
it is 72V 1500W 15fet 4410
curtis parker(2013-5-10 11:34:15)
yes
Leo Liu(2013-05-10 08:34:35)
you not Sincere
curtis parker(2013-5-10 11:35:2)
sincere about what?
Leo Liu(2013-05-10 08:35:31)
you said you ordered 15fet 4110 controller 50A model
Leo Liu(2013-05-10 08:35:39)
price is quite different
Leo Liu(2013-05-10 08:36:16)
we refuse to send a new controller to you
curtis parker(2013-5-10 11:36:29)
I paid the price YOU asked. I did not make the price you did.
Leo Liu(2013-05-10 08:36:30)
and also will not return the money to you
curtis parker(2013-5-10 11:37:3)
what are you saying?
curtis parker(2013-5-10 11:39:9)
I paid for a product and now you



Is this the kinda business you want to deal with? :mrgreen: :mrgreen: :mrgreen:
 
It never made to usa and I dont know why it was returned. and I did request my specs and he never gave me a order # just a tracking # and now he acts like I done something wrong to him.
 
maybe hong kong post returned it to him for insufficient postage.

is email the best way to talk to leo? i hate to skype in chinglish.

i am interested in the big 24 irfb4110 sine wave controller for silverheels and wondered about the price. does he talk price in emails or does that happen only at order?
 
now Leo is gonna send me another controller after a lot of harsh words. and threat of exposing his wrongful doings. Man I have got to find a different hobby this one is causing me to want to drink!!!
 
dnmun you can go and chat with Leo, order your controller to specs thru him and he will give you a price then and there, Now after dealing with him today I am not sure if that is the best way cuz he seems to forget what type of deal and price you set with him. So now I am into it for another shipping cost and a lot more time waiting for something I really dont know if I will ever see. maybe Ian can tell you the best way to deal with Leo, It must not be the way I did. which was honest and through and to the point, but when he made it seem like I did something wrong to him, It really made me want to plan my next vacation to china and pay him a visit and give him some of my temper.
 
dnmun said:
maybe hong kong post returned it to him for insufficient postage.

is email the best way to talk to leo? i hate to skype in chinglish.

i am interested in the big 24 irfb4110 sine wave controller for silverheels and wondered about the price. does he talk price in emails or does that happen only at order?
Click to expand...
Skype chinglish is your best bet. Have to write out something along the lines of:
18 fet 4110 set at 60A, cruise control, 3 speed switch, Cycleanalyst, PAS, reverse, LVC 72V
Change the mosfets between 4110/4410/3077 for what you need, change amps, and LVC (mine's for 24S :twisted: )
Then, ask for a pro forma invoice, and decide btwn chinpost and DHL. Look over the invoice, confirm, pay via Paypal gift/regular. Do it like that and you can't go wrong, especially with DHL.
 
I've waited over a month for a controller only to have the post return it to China. Spend the extra cash on DHL.
Ian's method seems best, especially if you want any kind of customization (changing fets will change the price). I ended up ordering an extra controller by mistake due to a misunderstanding in the chatroom. Cancelling a mistake order on aliexpress is a pain, so it's best to get it right the first time.
 
Thanks for all the usefull info on here folks , I just hooked up my first greentime controller a 24 FET, replacing a crystalyte 9FET and hope to get more miles out of it ,My crystalyte was of till the board shorted because of water intrusion. Now I need to figure out how to wire the regen brakes and all will be great with my world
 
Wish me luck, I'm going to try today 24s on my 15fet greentime controller, with the 4410 fets.

With regards to Leo, they make so little money over in China that losing $5 dollars is huge I believe. I know this from spending time in the Philippines and they make only a few dollars a day.

So him eating $10 bucks is like us eating $150 bucks or more.

I had mine shipped china post with no issues, other than a month wait.
 
crossbreak said:
I'm keen to see if that works!
Click to expand...
Me too, seeing as someone else went through a 15FET 4410 AND 4110 on 24S. I have customers on the road for ~1 year with 15fet 4410s at 24S and they've been loving it, same goes for my 18fet 4110.
 
WARNING, do not run this controller at 24S

Bad news, oh well.

Charged batteries to only around 4.05 per cell, I was around 96 volts when I started.

I went about 2 miles with no issues. Then when I went to hit the throttle all I got was a buzzing sound from the motor. When I stopped completely and hit the throttle, I got a noise from the motor for a second then nothing.

Checked all connections and everything was fine.

Had to pedal home, however, when going above 15MPH I got very slight power from the motor. It will buzz when giving this slight power. It is very very slight power.

Best way to describe it I guess is when one of the phase wires disconnects and you're only running on two phase wires instead of three.

So warning, do not try this controller on 24S, you will break it. Maybe some of the original controllers worked but these new ones will most likely break/

Is there anything I can do or look at to help fix this, or should I order my Lyen controller now?

Edit: motor was a yescomusa 1000watt motor, same as gafong used when he blew two controllers. I ran this motor to death at 72 volts so its hard to believe it has to do with the motor.
 
did you try sensorless? did you stick a multimeter on the phases to check for shorted mosfets? did you check the motor halls? I received a shipment not too long ago of 18fet 4110s and they are all currently in service, as well as the 18fet 4110 from a year ago or so on my bike. I am not a fan of the 15fet greentime at all due to it's sensor/less function, but totally recommend the 18fet 4410/4110, but stick to 20S for simplicity since it seems I have a magic touch...
 
I'm thinking the controller may have been on sensorless, which is dodgy and can fry the controller. 18FET only works with sensors.
 
EdwardNY said:
I do not understand, I have a sensored motor? How could I run the controller sensorless?
Click to expand...

Simply unplug the hall plug and it turns to sensorless operation. I tried it with one of mine, and it ran, but not very well.
 
You must log in or register to reply here.

Similar threads

aae34
Controlling controllers via 5V throttle.
Replies
6
Views
366
aae34
aae34
Z
  • Question
Possible GreenTime controller problem
Replies
1
Views
605
amberwolf
amberwolf
J
three controllers, one throttle
Replies
5
Views
185
E-HP
E-HP
RIPPERTON
    • Like
Kelly Controls IGBT controllers 320 380v
Replies
1
Views
220
jonescg
jonescg
vladrov
Tronic X12 or similar high-voltage controllers?
Replies
8
Views
1,950
A-DamW
A-DamW
Back
Top