Hi there, I have purchased few weeks ago a Tic 36v4. It worked fine for a while. Recently I cannot not use it anymore because of “Motor Driver Error”. More precisely “Predriver Fault A”.
The error will show up as soon as I “Resume”. The red LED is On all the time.
Is there a way to reset the fault and use the board?
Attached is a picture of the Control Centre and settings file.
tic_settings.txt (1.4 KB)
Hello.
The DRV8711 predriver fault triggers if it detects excessive current on the gate drive outputs. If it happens all the time, even when nothing is connected to the Tic aside from power, then unfortunately, the board is probably damaged.
It is not entirely clear what might have cause the damage, but it looks like you are using 46V, which is very close to the board’s absolute maximum operating voltage of 50V. So, it is possible that a transient voltage spike could have done it. It might also be possible that an over-temperature condition caused it if you had the current limit set beyond 4000mA per phase (or lower if your application has reduced heat dissipation).
Could you post some close-up pictures of both sides of your controller?
Brandon
Hi Brandon, something strange happen. I positioned a no brand Nema23 in contact with a 23HS22-2804S stepper forming a “T” assembly. The back of the 23HS22-2804S was in contact with the side of the other motor.
When powered, the 23HS22-2804S started a humming noise and behave erratically. Nothing I did made it better. While searching for answers, found a very similar situation raspberry pi - Stepper Motor Interference from Metal on Frame or Shaft - Electrical Engineering Stack Exchange
There is some magnetic field between the steppers and a metal. The magnetic field is stronger between the two motors.
Is it possible that the motors interfere each other when in contact and damage the Tic card? If you have run into this issue in the past, is there a “safe” distance that the steppers should be held at all time?
It is possible that you could be getting some electromagnetic interference, but I still suspect something like over-voltage is more likely to lead to the kind of damage you described. As far as separating the motors to avoid interference, it will probably depend on various aspects of your setup, like the specific motors you are using and the voltage and current you are driving them with. If you can, I would recommend getting your system working with the motors separated from each other first and then only worrying about interference if you notice a definite degradation in behavior when you bring the motors closer together.
Brandon