Gate Driver Fault Warning On Sparkmax

My team was just moving the entire system to a chassy and using Sparkmax as the motor controller and one of the four motor controller led is color keep’s blinking cyan-orange, the sparkmax tell’s us is a “Gate Driver Fault”, what does that actually means?

PS: sorry fo the lack of context

TLDR, the controller’s probably nonfunctional.

Quick, more in depth explanation:
Motor controllers use lil high power transistors called MOSFETs to modulate the power to the motors, and the part of the FET the control voltage to (which controls whether it’s conducting or blocking current) is called the gate. There’s a certain type of MOSFET that’s typically cheaper and better at carrying current (called an n-channel), but when used in certain applications like motor drivers, they need to be situated between the power source and the electrical load as opposed to between the electrical load and ground. Just due to some stuff with them conducting the high voltages (as opposed to the ground path), you need to use specialty chips to control the gate and thus the conduction, called gate drivers. If the MAX is reporting a gate driver fault, that likely means that one (or more) of the MOSFETs has blown or something like that - if it’s been given reverse polarity power or the outputs of two maxes plugged into eachother it’s very possible.

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You might want to do a search for “gate driver fault” in this forum to see if any of the solutions people have used helps you. If those solutions don’t help, you may want to contact REV directly since the shipping time to Indonesia is likely to be rather long. There are people from REV participating in some of the threads about this topic.

The SPARK MAX has 6 large transistors called MOSFETs that provide power to the motor. The Gate Driver turns these transistors on and off. Due to the limited information we can display on the Status LED, it can mean a few different things, but this error is displayed when the Gate Driver is indicating any kind of fault.

Possible but not necessarily the case.

Let me ask a few questions so that we can build up some context:

  • Does the error persist or does it clear after a power cycle?
  • What version of firmware are you running on the MAX?