FEC FUSIONE-HS-2 - Manual (Page 164)

Chapter 8: Maintenance and Inspection
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 val-
ues from the torque transducer (zero and calibration) to the data stored in the system memo-
ry. 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.
• 2. Check that the torque display shows 0 when the keyboard-display unit RESET key is being
pressed.
• 3. At the same time as 2 (above), check that “ABN” is not displayed on the Data display.
• 4. Check that the display is showing the full scale torque value when the Controller unit CAL
key is being pressed.
• 5. At the same time as 4 (above), check that “ABN” is not displayed on the Data display.
• If any of these checks fail internal limits, an ABNORMAL will be generated and “ABN” will
display. 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 by an operator.
• 2. Place the Controller keyboard-display unit into the real-time display mode (Chapter 7 -
Display has only one digit active in the D-NO display. This is the default mode when power is
applied). The [D-NO] display must be set to [3] using the Up/Down 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 in-
crease.
• 4. Verify that the angle rotated matches the indicated angle in the data display.
8.2.3 Motor.
If doubts about the condition of the motor exist, the windings can be manually checked with a
Ohm meter. To check the motor, measure the winding's resistance and the isolation resis-
tance.
• 1. Power down the system.
• 2. Disconnect the motor connector from the tool assembly.
• 3. Measure the resistance between windings. (Refer to Fig 8-2-3)