FEC MICRO NR - Manual (Page 100)

Chapter 8: System Operations
Page 8-4
8.2 Basic Operational Tests
WARNING: Follow Lockout/Tagout and other safety precautions when connecting or
disconnecting cabling, wiring and equipment. When performing the following inspections,
verify that the system is disabled prior to touching any moveable components.
8.2.1 Torque transducer.
The system can perform a transducer check before each fastening cycle, comparing the values
from the torque transducer (zero and calibration) to the data stored in the system memory. The
system is maintenance free. However, it can be manually checked as follows:
1. Be sure that the nutrunner is in the READY mode. (powered up and not running with a
STOP signal applied)
2. Check that the DATA display shows “ACC” when the keyboard-display RESET key is being
pressed.
3. At the same time as 2 (above), check that the SATAUS LED is green.
4. Check that the DATA display is showing “ACC” when the keyboard-display CAL key is
being pressed.
5. At the same time as 4 (above), check that the STATUS LED is green.
If any of these checks fail internal limits, an ABNORMAL will be generated and the STATUS LED
will be red. See Chapter 9 for troubleshooting.
8.2.2 Resolver.
Take the following steps to manually inspect the resolver:
1. Make sure that the system will not be started up by the PLC (use the manual mode).
2. Place the MNR keyboard-display into the Real-time Display Mode (Chapter 7 - Display has
only one digit active in the D-NO display). The [D-NO] display must be set to [0] using the
arrow keys in order to see the angle of rotation on the DATA display.
3. If the socket of the tool is turned in the clockwise direction, the angle indication should
increase.
4. Verify that the angle of rotated matches the indicated angle in the data display.