# TPT - TensorPulse Tighten to Torque / Loosen to Torque

Tools
STR IXB

Before using TensorPulse tightening/loosening step, it is mandatory that the following license type is installed on the controller:

- Low Reaction Strategies

TensorPulse is valid only for the following tools: ETV-STR61-100-13, ETV-STR61-70-13, ETV-STR61-50-10, ITB-P.

This step is not supported for tools configured with Gear Front Attachment (GFA) of type open end or closed end.

TensorPulse Tighten to Torque

This step generates tightening pulses in the forward direction, until the torque target is reached.

TensorPulse Loosen to Torque

This step generates tightening pulses in the backward direction, until torque is below torque target.

If running TensorPulse tightening/loosening step, use the necessary PulseDrive socket/adapter.
If TensorPulse tightening/loosening step runs without the PulseDrive socket/adapter, all the tightenings are NOK. The step error “PulseDrive socket/adapter not detected” shows for no PulseDrive socket/adapter.

Parameter | Description
--- | ---
Torque Target - Ts | Torque Target must range from 0 through the maximum torque of the tool.
Pulse Energy - Pe | Pulse Energy is used to control the amount of energy/current in each pulse. Pulse Energy must range from 10% through 100 %. By default, it is set to 100%.
Reaction Force Tuning Factor | Reaction Force Tuning Factor is used to tune the reaction force when running TensorPulse step. It is the power that moves the tool in the opposite direction after each pulse. High tuning factor makes high reaction force and high pulse frequency; low tuning factor makes low reaction force and low pulse frequency. Reaction Force Tuning Factor must range from 0 through 100 %. By default, it is set to 40%.

In the trace, the angle reversal means that the tool rotates backward to enable pulsing, but the bolt head does not necessarily rotate backward because of the PulseDrive socket/adapter.