36 PL12EN-1001 2011-04 en03d441.fm, 07.04.2011
Programming
3
3.3.7 Extended NOK
Strategy Touch up / Error handling
The NOK strategy comprises touch up and error-handling. Another fastening stage may be started after a
touch up, while error-handling leads to the end of the process. This allows joint backoffs in the touch up rou-
tine and these can be retightened in the further fastening sequence to achieve an OK rundown. Since no
further stage can follow the error-handling routine (the fastening sequence is terminated with NOK) it is
often used to fully backoff the fastenings.
Touch up and error handling can be programmed separately for each fastening stage, i.e. group assign-
ments and backoff parameters can be entered in each stage for both touch up and error handling.
Touch up is performed immediately after the completion of a fastening stage. Error handling can be initiated
by any fastening stage, but will be performed after the last fastening stage using the stage-related backoff
parameters.
Performance features
• Groups can be programmed for touch up and error handling. Subsequent to touch up a preset stage
may be started. Error handling leads to the end of the process.
• Separate backoff parameters can be programmed for each fastening stage and for both touch up and
error handling.
• Each spindle can be assigned to more than one touchup group.
3.4 Advanced
3.4.1 Matrix
Fig. 3-8 Application Matrix
The Application Matrix is a display matrix of 99 Applications vs. 6 Stages displaying the selected Sequence
number for each stage. It gives the user an overview of controller programming in a single screen. The
arrow following the sequence number for a stage indicates the direction of rotation (> for clockwise; < for
counterclockwise).
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