# Reaction after collision (P-SECO-00004)

P-SECO-00004 | Reaction after collision
Description | This parameter defines the reaction of the controller in case of a collision. The parameter entry is only set after each CNC reset. The reaction can be changed in the NC program by the #COLL SET [ REACTION=.. ] command.
Parameter | collision_reaction
Data type | SGN32
Data range | 1 – Abort before collision (default) 2 – Wait for user release before collision 3 – Abort after collision 4 – Wait for user release after collision
Dimension | ----
Default value | 1
Remarks |