N = Number of iterations.  Excluding N defaults number of iterations to 1.

This command places all the fibres at their park positions.  Before attempting to move any fibres, the command checks  whether an AFSETUP, AFALLCIRCLE or AFALLPARK is in  already progress and takes appropriate action. The fibre back-illumination is switched on before any fibres are moved and switched off again on completion.  The robot is also parked on successful completion. 

The optional iteration count given on invocation of the AFALLPARKE  command is only used for the park fibre placement. On completion or abort the initial fibre iteration count is set.