FEC FUSIONE-HS-2 - Manual (Page 109)

FEC Fusion Operations Manual Chapter 6: Fastening Instructions (Rev. 2)
Page 6-13
• For Angle Control operations, the High and Low Torque limits are either set by the engineer-
ing specification for that specific fastener, or by determining the acceptable limits from a
study of known good and bad assemblies. The High Torque limit will stop the fastening
process for Angle Control operations if it is reached before attaining the desired angle.
ANGLE CONTROL
REJECT TYPE CAUSES
PEAK TORQUE HIGH LIMIT
Reduced joint compression.
Increased joint friction.
Incorrect parameter set-up.
PEAK TORQUE LOW LIMIT
Increased joint compression.
Reduced joint friction.
High initial prevailing torque.
Incorrect parameter set-up.
Reject condition caused by another monitor item reject.
FIG. 6-2-1b Peak Torque Monitor – Angle Control
Snug Torque
Threshold Torque
Speed Change Torque
1 st Torque
Crossover Torque
Final Time 1 st Time
Standard
Angle
Torque
Angle/Time
Peak Torque High Limit
Peak Torque Low Limit