If you have blown your braking module and the DC voltage is close to the max limit, you may be getting an overvoltage condition when you decelerate your axes. Slowing down / stopping movement will generate voltage on the bus. Perhaps you could try reducing the feed rates in the controller to start with and see if that helps.

What DC voltage have you got? You need a good 30-40V below the overvoltage threshold. That threshold is probably shown in the manual.

You may need to replace the braking module unless you want to see glacial feedrates. But first see if this is the issue by slowing things right down to reduce any overshoot. If you have a scope or DVM, you may be able to observe what is happening to the DC voltage when you decelerate.