# Trigger Lost

In the Result Evaluation window of the program tightening stage, NOK on trigger lost switch controls whether or not it is allowed to release the tool trigger before the target condition has been reached. The setting can be set to On or Off. Below is a description of the two states.

Switch setting | Description
--- | ---
On | Releasing the trigger before reaching the target condition will result in a NOK tightening.
Off | Releasing the trigger before reaching the target condition will result in an OK tightening as long as all other conditions have been met.

The default behavior is that premature trigger release shall not be allowed.

Availability

The NOK on trigger lost is available in the following tightening strategies: Rotate, Quick Step, Two Step, Three Step, and Impulse - Single Step.

For the tightening strategies Rotate, Quick Step, Two Step and Three Step, Trigger Lost setting is only available when the Target of the program is set to Angle (not Torque).