FEC FUSIONE-HS-2 - Manual (Page 123)

FEC Fusion Operations Manual Chapter 6: Fastening Instructions (Rev. 2)
Page 6-27
6.6.6 Torque Inhibit
The Torque Inhibit function is used to ignore high torque spikes during initial starting of the motor or
fastening process. Under normal fastening operations, peak torque will stop the fastening process (if
Standard Torque is reached). This may not be desirable for applications with high starting torque and
lower fastening torque. Applications such as self tapping screws, nylok nuts, crushed fasteners, and
application with high starting inertia may require this function.
Torque Inhibit is set by the number of revolutions that is required to be “ignored” during the process.
The Torque Inhibit Limit is a torque limit used as protection in case the amount of torque monitored
during the Torque Inhibit Revolution is too high. If this torque limit is hit during the Torque Inhibit
process, then the spindle will stop and an Abnormal is output.
Fig. 6-6-9 Torque Inhibit Function
WARNING: The Torque Inhibit Rev setting should be set as low as possible for the intended
application to avoid ignoring torque readings as the fastener approaches the seating point. If
the fastener seats and the system is still in Torque Inhibit mode, possible fastener/part and/or
system damage may occur.
Speed
Initial
Initial Time
Torque
Slow Down
Freerun
Torque Inhibit
Revolutions
Freerun
Revolutions
1 st Time Final