mxus 3000w motor problems

[markz]

I got the stock phase wires (cut off the Anderson PP's) on the motor hooked up to the big wires on the controller.
I got the hall wires hooked up correctly I believe.

My CA reads out 46V which is true due to my volt meter reading, my top speed however is only 15.5kph. I have 46V volts at 20Ah and I think the CA reads out 0.46ohms for battery resistance.

The first hall sensor (the ones with the really small wires and the white wire which is unused.) I connected it up and it ran but quirky/wonky/gittery.
The second time it ran smoothly.

The motor simulator on ebikes.ca should be at 38 or 39kph. Is simply the fact I got small wires about 2' long stock, going from motor to controller? Restricting it?
Do I still have to play around with the hall and phase wire combinations?

 

[amberwolf]

CA current reading when unloaded?

 

[markz]

Yes I lifted the bike up and throttled it all the way. All I have is the rim/motor, no tire on it yet.
I resoldered my 5.5mm bullets.

Basically I got 4S 14.8V 5Ah Turnigy hard cases hooked up in parallel first, because I bought the 4:1 parallel harness from HobbyKing. Its the 4mm Bullets x4, going into a larger wire thats 5.5mm bullets. So I have 3 of those packs, making it 14.8V and 20Ah by 3 so 46V and 20Ah.

I connected the Ignition wire to main lead. I disconnected the regen wire.

I dont know what else to do, do I still have to play around with the hall and phase wire combinitations. Could that be whats stopping it from going full speed?
I got the Lyen controller hooked up to it.
18 FET Low RDS MOSFET Overclocker Ready LYEN Controller $199

Oh darn it I forgot the batteries are at storage voltage. 46V, not fully charged.
I will fully charge them now, I will try to parallel charge them I guess. 12 batteries in total.
-----------------------------------------------------------------------------------------------------------------------------------------
Edit:
Im totally excited now that I got it firgured out.

OK The issue was I had to go to the color coding list of "MXUS motor from Xin Feng (4/18/2013)"
Halls are Y-Y, G-G and B-B (M-C) M=Motor C=Controller
Phases are Y-G, G-B and B-G (M-C) M=Motor C=Controller

I got it going about 38km/h and ~400W unloaded, no tire. Thats inline with the ebikes motor simulator.

Not the other 2 listed as (1/17/2013) nor Cable Company listing.

I had setups where it went gittery, knew it was wrong on both the M and C side.

I am telling ya this setup freaked me right out even at 46V storage voltage. I think its best to hook up "keyed" connectors that you can never mess up.
Now interestingly enough, the half speed setup I believe the phases were Y-Y, G-B and B-G the halls were Y-Y, G-B and B-G. Like I said that reached 15kph.

I am going to buy/make a battery bag that sits under the crotch tube. There is faaaaaar tooooo much weight on the back wheel.

Now shouldnt the Controller be cutting the thing off because I am running 46V, I think it comes stock for a 62V LCV. I should be running it at 72V.

------------------------
Hooked up another 14.8V 5Ah pack, 61.5V and ~60km/h at approx ~500W unloaded.

 

[amberwolf]

Yes I lifted the bike up and throttled it all the way.

It's not a yes or no question. I was asking what the CA current reading was, when off ground/unloaded.

If you read the many other such troubleshooting threads you'll see that is a key to knowing if you have the right combination or not.

 

[markz]

I gotcha, I just remember the amperage was very low on the CA.
My batteries are all disconnected now as I try to figure out how to redistribute the weight to the top tube.

 

[dogman dan]

Most likely you didn't have the right combo of halls. But the jittery could be the right combo, but with a poor connection somewhere. At times in the past, I have spent days trying combos, because sometimes I hit the right combo, but don't have as good a connection as I thought. Other times, find the right combo in 10 min.