Yeah, you read that right. Alltrax is launching a new series of controllers, and guess what, bitches… I HAVE ONE.
This is the SR series, specifically, the SR48600, which means 48V, 600A. SIX HUNDRED.
It’s a lot cleaner and 2016-feeleing, with the molded enclosure and snappy color-coded blade connectors. The center big thing sticking up are the heat sinks, with a cap over the channel and a fan.
Note to self: Mount controller such that the fan is pointing in a blowing-not-forward direction, so it’s not fighting the natural airflow of the bike moving forward.
Here’s a breakdown of the whole line:
…and here’s the generic wiring diagram – basically the same as for the AXE from what I can tell:
I’m using this for the Corbin/MacArthur bike. It’s running a PMDC motor from god-knows-what and was wired for an on-off switch contactor arrangement at 36V with lead acid batteries. I figure it’d be a lot more gentle on everything involved with a speed control on it for the summit run, so that’s the deal.
Here’s the test rig:
Here’s a video of just hot-wiring the 40V+ pack to the motor without the controller:
…and with the controller mickey-mouse wired in to test it: