Mode switch set to MDI
touch Param button
Page down once (you should see PWE Enable)
change to 1
Alarm is activated (Parameter "write enable" switch on)
page down, cursor down to #0901
***write down the current value***
...Carfully overwrite the whole number...
(bit 1 is the farthest to the right, bit 8 is fathest to the left)
Be extremely careful when doing this! Be absolutely sure what you are changing!
Last go back to the PWE setting and change it back to 0.
(Disables parameter writing)