Recently purchased 2x Tic T825 to control Nema 17 Stepper motors via Raspberry PI. I’m in awe, how well these controllers work: seamless integration, easy-to-understand libraries, etc. and was able to get the robot running within a couple days.
Tic T825 Firmware Version 1.06 (Qty 2 in parallel)
Raspberry PI 4 (connected via USB port)
External Power Source: 12V 3A limit
Nema 17 1.5A 12V Stepper Motor (2x)
Max Current 1472 mA (both motors were cold, wasn’t stressing them)
Been testing the actuators/robot for about 2-3 working hours and suddenly one of the Tic 825 suddenly stopped registering on Raspberry PI (error popped up: “Device ID: ######” is not connected) so upon a closer look at the LEDs one of the two Tic controller didn’t light up. I measured the voltage of across the wire terminals and registered 12V (both controllers were running parallel on the external power supply).
I removed the T825 that is having issues from the robot and plugged it directly into my computer via USB but nothing was turning on (no LED lights and doesn’t show on Tic Control Center). Just to make sure, I did it with the other Tic Controller but everything was working on this one. I’m a bit perplexed why one controller stopped working while the other controller was working just fine.
What can I do to verify the T825 circuit and if it got fried/manufacturing defect? and if there is potential to fix it?