What's wrong when the DM-F Local module cann't be reset by the set/reset button when it is pressed for whatever time (short, 3s, 5s ...) after a fault is detected and the cause has been fixed. SF led lit.

The only way to reset the fault is to power down and -up again. According to the manual this shouldn't be necessary.

Setting of the dipswitches: 1, 2, 3, 4 and 7 - on.
Configuration of the 'Safety oriented tripping' in Simocode ES to both 'manual' or 'auto' doesn't solve the problem.