I had a similar problem last week with my Hammer CF531P. ?After using the shaper with a huge rebate cutter, the break cried and ceased functioning. ?Next startup attempt tripped the breaker.
I went all through the schematic, translated it into English so I could read it, and traced down a burned up MOV (Metal Oxide Varistor) on the brake board. ?I desoldered the (exploded and shorted out) varistor, and replaced both with higher-amperage new parts. ?Everything works fine now.
So yes - a short on the brake board can absolutely trip your breaker. ?And no, unless you're comfortable with soldering irons and PC board rework, you probably should just order a new board from Felder ?** if you find that it is crispy somewhere on the brake board **
If you could post or send a close up photo of your brake board (especially near and under the covered aluminum heat sink), it might help.
Let me know if you need schematics, potential troubleshooting techniques, etc. I can try to help.
Ken
