Specifications

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3BUS 208 000 R1301226 Troubleshooting
Head Resynchronize - Timeout
Encoder synchronization has failed to take place after being initiated. Could be a
problem with the encoder or ECF board.
Head Speed Inconsistency
Caused when the system response to the servo commands results in one of the
following three conditions: (1) vmin tuning has been aborted, (2) there is an
excessive ddc error, or (3) the servo has timed out. First check for a mistuned servo
setup, including the motor controller itself. Could also have hardware problems
with MPRC and ECF boards.
Beam Air Flow Off
There currently is no air flow switch monitoring the beam air flow. If this alarm
appears, it means that the bit in the ECF board is being seen as set. Correct by using
the dim utility to invert the bit.
Power Shelf Temperature Out of Limits
The temperature of the power supply shelf has exceeded the maintenance limit of
50 °C. If it reaches 65 °C, the SP will power down.
Motor Controller Temp Out of Limits
Temperature feedback from the motor controller assembly has exceeded the
maintenance limit of 50 °C. If it reaches 65 °C, the SP will power down.
AI Slope and Offset Calc Failed
Failure of the ECF board to set up properly for processing the head position signal.
Could be a bad ECF board.
Undefined Alarm
Some alarm condition has occurred for which there is no display text. Note the
associated code and call the Support Line for assistance.