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  #41  
Old 12-11-2011, 12:46 PM
bjfreeman bjfreeman is offline
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Default Re: CAN Bus problems....

yes and the shield should be connected to one end common point. not both ends.
also this defines the physical layer not the Can protocal.
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  #42  
Old 02-23-2012, 03:08 PM
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Default Re: CAN Bus problems....

Good news!

It's taken a long while, but there's finally communication! The BMS controller simply had no CAN output. Replacement arrived, and all is well (sort of). It's currently trying to jog some life back into the batteries, but there were some really bad cells, so... The lowest one after I tried bringing them back was something like 2.7v, so it should be able to charge.

Although very oddly right now, it's reporting that there's no current flow. Hmm.
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  #43  
Old 02-23-2012, 04:21 PM
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Default Re: CAN Bus problems....

Oops, forgot to set the cell parameters in the new BMS controller. Now that's done...ish and the batteries are charging. Tons of parameters the HiPower sheets don't give...

Anyone know what a typical charge temperature of LiFePo4 cells is? At about 4.5C?
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  #44  
Old 02-04-2014, 06:18 AM
Lipo Louis Lipo Louis is offline
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Default Re: CAN Bus problems....

Hey People,

I have problems too, I have the EMUS BMS working and have connected my CAN charger Elcon PFC 2500.

Please see attachments, do I need to fill in the CAN ID Address ? It is not possible to enter and X or F only numbers, and if I change it, it will automatically change to 8191.

Charger is blinking green, I also added the 120 ohm resistor. between CAN H and L.

Any idea what else I could try ?
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  #45  
Old 02-18-2014, 09:44 AM
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Default Re: CAN Bus problems....

This looks like a new CAN-serial adapter ID is being used by TC/Elcon, which is not yet supported by Emus BMS. Probably this new ID will be hardcoded into new firmware, when it is released. Or you can order adapter from TC/Elcon with old ID.

CAN ID base, specified in the software is not for charger, it is for internal Emus device network.
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