I stalled braking resistor. Easier than I feared (I fear too much 
). Slide in the back, two wires to the terminals at the front and program change to parameter P-34 to 1 to enable the brake chopper with software protection (not what that means, but I did as instructed). I left P-05 (stopping mode at “coast”, value 1).
Image: black cable goes to the thin sliver of gold coloured this is resistor slid into the back cables tie in a front.
Thank you for your help.