Batrium Contractor / Pre-charge Wiring

miscrms

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Sep 9, 2017
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Here's my first cut at the wiring plan for the contactors and pre-charge relay. Any thoughts? Trying to get things sorted out while I wait for the new WatchMon4s to start shipping.


image_uwwchf.jpg


I'm not seeing it in the documentation, but I thought I had read somewhere that Batrium has added a pre-charge signal that can be configured to one of the relays. Anyone know what the timing is like on that signal? Hoping it's a variable length pulse that occurs before"Battery Ok" goes high.

Since I'm using the battery modules out a Nissan Leaf pack reconfigured 8s6p, I thought I might as well re-use the contractor / pre-charge box and the service disconnect / fuse assemblies from the original pack. I believe thecontactors are a custom version of thePanasonic EV series 200A (2000A breaking) with 5V coils.

Here's an idea of what the contractor module looks like:

And here's the Service Disconnect:

image_bhfhpe.jpg


And the fuse integrated into the back side:

image_tyjejv.jpg


Rob
 
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