burnt Roboclaw 2x7A repairs
Posted: Sat May 29, 2021 1:32 pm
Hello,
Because of my carelessness I reversed +/- and burned 2x7A. Actually, the RC is not completely dead, it is detected by PC, flashes LEDs, etc. The visible damage are two current sense resistors, which burned almost to ashes.
I am going to replace them and see if the problem will resolve. However, I'll appreciate an answer to a couple of questions:
1. What's the original part? The other unburned board has a 10L0 marking, which is 0.01 Ohm. Size is 2512, I suppose. What is its wattage and precision? The local distributor has CRA2512-FZ-R010ELF
https://www.digikey.com/en/products/det ... FZ-R010ELF
on hand - would it suffice?
2. Is there anything else to check after such shock?
Kind regards,
Alex
Because of my carelessness I reversed +/- and burned 2x7A. Actually, the RC is not completely dead, it is detected by PC, flashes LEDs, etc. The visible damage are two current sense resistors, which burned almost to ashes.
I am going to replace them and see if the problem will resolve. However, I'll appreciate an answer to a couple of questions:
1. What's the original part? The other unburned board has a 10L0 marking, which is 0.01 Ohm. Size is 2512, I suppose. What is its wattage and precision? The local distributor has CRA2512-FZ-R010ELF
https://www.digikey.com/en/products/det ... FZ-R010ELF
on hand - would it suffice?
2. Is there anything else to check after such shock?
Kind regards,
Alex