I’m trying to power two 24V truck wiper motors with the VNH5019 Dual driver.
Every time I power only one of the motors everything works as I want it to. But as soon as I connect both motors and instruct the driver to power both of them in the same time I see weird results:
a) Most of the time the driver just signals a fault on one of the motors (it’s random which motor triggers the fault).
b) Some times they do run but not in the same time and at very low speeds even though the speed I set in code is 400. So basically instead of both of them spinning one of them starts spinning really slow, then the other one starts spinning while the 1st one stops.
Is there a way to understand what a fault means? It’s kind of hard to debug the problem.
My power source is a 24V 21A, btw. And I’m using an Arduino Nano which I connected to the shield via a custom PCB board respecting the required connections.
If I can provide any more information, let me know, I’ll gladly do so.