# Multistep Tightening Strategy

A Multistep tightening is a tightening done in several steps. The number of steps and the type of the steps vary depending on the tightening to be done. A Multistep tightening program is highly configurable, including monitoring functions and restrictions. A total of ten steps can be added to a Multistep program.

Restrictions are used to make sure the tightening stops if something unexpected occurs. These restrictions could, for example, test that a maximum set torque is not reached or that a part of the multistep tightening does not take too long to run. Every step can have up to four restrictions each. Each step has mandatory step restrictions and optional step restrictions. The mandatory restrictions are included when dragging a new step to the multistep program.

Monitors are used to verify that the tightening was made according to the specification. This can be, for example, angle limits or torque limits. Every step can have up to eight monitors each. Each step has mandatory step monitors and optional step monitors. The mandatory monitors are included when dragging a new step to the multistep program.

WARNING

Risk of injury

A change in the configuration of the tightening program may cause unexpected torque, rotational direction, or speed in the system(s) where the tightening program is currently in use. This could result in severe bodily injury and/or property damage.

- Check the tightening program configurations after adding a new program or after applying changes to an existing program.

Controller features, such as the Low Reaction Tightening Strategies and controller-wide functions among others, require licenses distributed through the Functionality Management System (FMS). Whereas configuration of features is possible without specific licenses, the assignment and use of those features will require the correct license to be installed on the controller. Please refer to Licenses (FMS) for more detailed information on licenses.

In this Section

- Tightening Program Menu
- Properties Sub-Tab
- Adding a Multistep Program
- Tightening Editor