TC Charger CANbus connect to Zeva help

[somfas]

I finally have my pack built, but have something wrong with the TC Charger wiring. Looking for guidance on how to wire it correctly to the Zeva. I think my issue is with the connection on the side for the CANBus. It came with only a red and black wire coming out of the big connector on the charger side for the CANbus. It also had a red and black wire with a diode between them and labels that said +14v and -14V. So, coming out of the big (16 pin or so) plug on the side, I had 2 black wires and 2 red wires. Zeva says it should also have a CANH and CANL hooked up. Any idea what I am talking about? And any suggestions? Thanks

[BBBHC]

I believe DaveTM is running this same setup. If he doesn't chime in, maybe you can PM him.

[Sergio]

You may want to post a picture of that connector to avoid mistakes.

The CAN-H and CAN-L are closest (one on top and one on bottom row) to the "led" side of the connector.

You also need the "gnd" pin but not the +12v wire as only the Zeva should power the CAN bus.

There should be a 120 ohm resistor between the CAN-H and CAN-L wires to terminate the CAN bus if the charger is at the end of the bus.

[DaveTM]

Now I have to think!!! It's been awhile since I set this up.....but these pic's may help until I re-look at my setup.

[DaveTM]

You connect the CAN-L and the CAN-H from the TC chargers "signal connector" using the correct ports as shown in my above post. You ALSO connect the CAN-L & CAN-H wires from the monitor to the SAME connections on the ZEVA.

I also have a 120 OHM Resistor on my TC Charger signal connector.

I got the resistor when I had the TC Charger re-programed for CANBus. (Don't ask ). This link on my initial build may provide you with more education\info. https://www.buggiesgonewild.com/show...&postcount=247

[somfas]

Thanks for the responses! I will dig through those and compare to what I have. I think I have been able to successfully attach the pic to this post. I am running the monitor on one end like Dave has and believe that it has a built in resistor. I also thought the charger did too, and maybe its the one that can be seen in the picture? I wasn't planning to add any additional resistors unless I still need to.

In my pic, the red and black wire that have the resistor between them, they have a factory sticker on the wires that say +14v and -14v??

Thanks

[somfas]

Correction from my last post: The red and black wire with the resistor have a heat shrink label that says CanH and CanL. The other two wires in the middle of the group have the -14v and +14v. So, with that, I understand why I may have had issues, but would still like reassurance on wiring this now. Should all 4 of these wires go into the CANbus plug that can plug into the Hall Sensor (or EVMS or monitor, etc). Thanks again

[Sergio]

The CAN bus wires with the termination resistor is correct for the charger being at the end of the line.

You should not connect the other red wire (+12v) to the can bus wires as the Zeva box is already providing +12v to the bus.

You only want 3 wires: CAN-H, CAN-L and GND.

[DaveTM]

EDIT: Sergio posted as I was typing. I don't wanna muddy up the water.

[Sergio]

If that negative wire is not in the same cable bundle as the CAN-H and CAN-L wires, then You do not need it since the cable is not shielded.

The CAN bus itself just needs two wires, but normally a shielded cable would connect the negative as well.