Alexanderfoti
10 W
- Joined
- Jun 18, 2016
- Messages
- 78
So in follow up to this thread: https://endless-sphere.com/forums/viewtopic.php?f=10&t=99506
I killed another KLS 8080I controller.
Same failure mode as the other one, full acceleration around 35 mph. This time I saw around 280amps battery current on the shunt at the time of failure (compared to 350A of the old one!)
KLS14401-8080I - Rated at 400amps peak for 30 seconds and 160A continuous (phase current!!)
The settings on my controller, before it failed were:
65% Motor current
75% Battery current.
Now, this controller is under warranty, so Its being replaced. Internally, a fet shorted closed to one motor winding.......
Fany said to not set the phase current past 65% on the replacement controller, but I feel like that one will blow as well if I leave it at the same current settings.
I feel like I am missing something here. If the motor current setting is the % of the motor controllers rating, then 100% shouldn't break the controller, unless I am pulling more than 160amps (motor current) for hours on end?
I am currently riding around with 50% phase current and 50% batt current setting. I am seeing around 200 amps on the shunt peak, and feel like that is safe enough, but would love some input. Thanks.
I killed another KLS 8080I controller.
Same failure mode as the other one, full acceleration around 35 mph. This time I saw around 280amps battery current on the shunt at the time of failure (compared to 350A of the old one!)
KLS14401-8080I - Rated at 400amps peak for 30 seconds and 160A continuous (phase current!!)
The settings on my controller, before it failed were:
65% Motor current
75% Battery current.
Now, this controller is under warranty, so Its being replaced. Internally, a fet shorted closed to one motor winding.......
Fany said to not set the phase current past 65% on the replacement controller, but I feel like that one will blow as well if I leave it at the same current settings.
I feel like I am missing something here. If the motor current setting is the % of the motor controllers rating, then 100% shouldn't break the controller, unless I am pulling more than 160amps (motor current) for hours on end?
I am currently riding around with 50% phase current and 50% batt current setting. I am seeing around 200 amps on the shunt peak, and feel like that is safe enough, but would love some input. Thanks.