Just to update everyone. If you remember, my Diginows quit charging. I dropped the pan today and tested them out individually. Neither one would charge my SR. It would click on and the green plug light would flash for a minute then stop but the display would still be on. I went ahead and installed the factory charger back on just to charge up my bike. Bad news. It has the same behavior. It clicks on and the green plug would flash for a minute then stop. According to the app, the bike is not getting any current from any of the chargers. I double checked all the connections to make sure none were loose. I'm at a loss at what to do now. Any ideas? Prior to all this happening, it charged find one morning and I went out to do some errands. I can home and plugged it up and that was the first time it stopped charging.
Do you have a Powertank? That synchronization to the main power pack can break and add some weirdness to the charging scheme. Assuming not, troubleshooting goes like so...
If your bike still operates (sevcon engage and throttle -> bike moves) then you're in good condition for voltage because the Sevcon has a defined operating range. For example if your battery was charged too high there's a possible outcome where of course the chargers would not operate but also the bike would not move anymore due to Sevcon refusing to operate. Similar outcome for battery voltage being too low.
If your pack voltage is within acceptable tolerance (10% ?) of the maximum it's possible for chargers to remain off and not engage anymore. The datasheet for Farasis cells lists 4.15Vdc maximum and packs are 28s so 4.15Vdc * 28 = 116.2Vdc maximum. Anyone doing charging equipment would design to this value. There is a resting voltage less than 116.2Vdc where charging logic (OEM, Diginow, otherwise) would not turn on (115Vdc?). I've observed this on my own bike for various equipment Diginow or otherwise.
The Diginow configuration with HK-J3300 charging modules requires a control module (the version 2.5 namesake of this topic) to send CANbus messages at regular intervals. If the CAN lines are shorted, or the internal fuse has blown, those messages will not reach the modules and the HK-J3300's will time out. My Diginow pan was installed improperly by Brandon and sheared the CAN lines. I had to disconnect some of the chargers CAN connections to get charging to work again, which got dirty from the NO-OX goop that was in them on my 400mi+ return trip for service which allegedly induced Brandon into some kind of super-sayan snowflake rage trying to clean them. If you suspect something like this, troubleshooting ends here if you want to keep Diginow happy, and best wishes for you to get support!
The stock charger needs both connection to the charging harness and to see an appropriate voltage on the DC output side before it will begin charging. There's a work-around where you can short two pins on the stock charger and it will act like a dumb charger. According to someone who got this to work it should be pins 12 and 13. Burton's wiring diagram I think shows this too. Mind the voltage as this can reportedly overcharge beyond 116.2Vdc in this configuration. Connectors I think are a JAE MX23A series (unconfirmed yet) but what seems to work without harm is to carefully short those pins.
Perhaps there is damage or connection error with the charging harness? You could try AUX charging port enable (stock items that do this are the QuiQ charger).
Anyway if you can put current into the connector and keep the bike online, no charging enable is needed to put energy into your battery pack.
Author
Topic: Diginow Supercharger 2.5!! (Read 31021 times)