Part NumberIssueDatePage61599388801301/2018189 / 249189 (249) 01/2018The Delta torque and angle LEDs are activated as follows:Low (yellow) LED Torque / angle lower than the minimum value.OK (green) LED Torque / angle within the minimum and maximum limits.High (red) LED Torque / angle over the maximum limits.The buzzer is activated as follows:Buzzer The beep emitted by the buzzer starts when the torque goes over the CycleStart value, and it increases its signal when it is approaching the target angle.At the end of the tightening operation three more beeps inform the operator ofthe end of the operation; if the torque/angle goes over the maximum values,the beep is repeated at high frequency to indicate the error.19.4 Prevailing torquePrevailing Torque strategyexecutes a tightening where thetorque must be within the minimumand maximum values during apredefined angle interval.The Angle threshold parameter isthe threshold from which the anglemeasurement starts.The Result option in the Psetdefines the result status (OK or NotOK) of the test: Average Torque: The average torque in the Min. Angle ÷ Target Angle interval must be withinthe Min. Torque and Max. Torque. Instantaneous Torque: All the torque values in the Min. Angle ÷ Target Angle interval must bewithin the Min. Torque and Max. Torque.In both the above cases, the torque result is the average torque value measured in the Min. Angle ÷Target Angle interval.If the target angle is not reached, the torque and angle result is the maximum values measured, andthe status is Not OK.If the Max. Angle is exceeded, the status is Not Ok.If the torque goes over the “change screw” value, a message is shown on the Delta display in order toadvise the operator to replace the screw.TargetAngleMax. TorqueMin. Angle Max. AngleCycle startAngle thresholdTorqueAngleChange screw atMin. Torque
