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FEC AFC1200 User Manual

Page 18

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MAGNIFIED

FASTENING TQ CURVE

TQ

THRESHOLD 1 TORQUE

INCREMENT ANGLE

1 DEGREE

FIG. 6-2-4a Integrated Torque Rate Method Incremental Sampling

If no judgment is desired for any or all stages, the high and low limit values should be deleted
from the PARAMETER SET screen by first selecting the item, then depressing the DEL key
on the keyboard. Upon completion of the fastening process, the System will output the
highest and lowest incremental torque rate value measured during each stage. These values
will be output as 1st, 2nd, and 3rd RATE HIGH and LOW.

3rd Rate High

Maximum 3rd Torque Rate

3rd Rate Low

Minimum 3rd Torque Rate

2nd Rate High

Maximum 2nd Torque rate

2nd Rate Low

Minimum 2nd Torque Rate

1st Rate High

Maximum 1st Torque Rate

1st Rate Low

Minimum 1st Torque Rate

NAME AS OUTPUT

DATA

For all control operations the High and Low Torque Rate limits are set by determining the
acceptable limits from a study of known good and bad assemblies.

Chapter 6: Fastening Instructions

Page 6-18