FEC MICRO NR User Manual
Page 18
Chapter 1: Outline
Page 1-4
1.3
Functions
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Fastening function.
The following fastening control methods can be selected for either clockwise (CW) or
counterclockwise (CCW) operation:
P
Torque / Angle Control
The fastening control method of the system is a combination of both Torque Control and
Angle Control. Setting both a torque target torque and an angle target torque allows the
system to target whichever setting would be reached first. The system can be also set-up to
run either of the fastening methods individually by setting the undesired target limit above it’s
respective high limit value.
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Multiple speed control
Four separate speed settings can be set allowing precise speed control for high accuracy
control. One reverse speed can also be set-up.
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Reject / Abnormal Condition Display
When a fastening Reject has occurred, the tool stops, outputs the appropriate signal and
displays the resultant data in the Detachable Keypad-Display unit if it is connected. Upon a
fastening reject, the unit will not require resetting prior to the next cycle.
The System will output an Abnormal signal when it detects there is a problem (Zero Check
out of limits, incorrect component connection, etc.) within the system itself. The output will be
displayed as a code on the affected Axis unit. Refer to Chapter 9 Troubleshooting for more
details. Correction of the abnormal cause and reset of the system is required on an abnormal
before normal operation can resume.
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Torque Inhibit Function
The Torque Inhibit function allows the controller to ignore the torque seen during initial start-
up for a programmed period of time. This is especially useful in self-tapping applications
where initial cutting of threads can require higher torque that the final target torque settings.
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Tool Type Check Function
The MICRO NR tools have an EEPROM in the preamplifier that contains tool data specific for
each tool. The Tool type check function reads the information of the tool EEPROM and
compares it to the information of the MNR Controller; any mismatch is reported as a Tool
Type Error Abnormal.
The tool type check is performed during the following times:
1) When the equipment is powered on.
2) When preset data is downloaded from a user console to the Axis unit.
3) When a tool is changed.