Hologic DISCOVERY A, Technical Manual

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A-8
C-Arm Comment: Attempt to turn on X-rays when either the filter drum is not yet locked (if it
is on) or the initial 30-second X-ray delay after startup has not elapsed. Reported as the
device state if the C-arm is reset. Reported as command error for any IS_xxx command
executed from an application (as opposed to executing from a state machine).
Action: Wait until the filter drum synchronizes to the A/C line and until the high
voltage relay in the X-ray controller is turned on (30 seconds after the system starts).
Motor_xx Reported as command error for any IS_xxx command executed from an application (as
opposed to executing from a state machine). Reported as device state if the motor is
reset.
Action: Determine why the motor was reset (e.g., power line brown out).
Motor_TZ Reported as command error for any move command until valid calibration information
has been downloaded. Reported as command error for any IS_xxx command executed
from an application (as opposed to executing from a state machine).
Action: Verify that the TZ driver has been calibrated and that the correct Hologic
system startup procedure has been followed (i.e., reboot the system and if the problem
persists, recalibrate the TZ motor)
Device time-out waiting for requested action [E_TIME_OUT_I] Comment: For everything except the state machine, indicates that a message was sent
to the device and a response was not received within 150ms.
Action: Follow the procedure under "BAD CHECKSUM IN MESSAGE." for isolating
the failed device and replace or repair it.
Comment: For the state machine, indicates that one of the self-limiting commands has
timed out or that the state machine continued executing into the next cycle.
Action: Report this error to Hologic Technical Support.
ERROR MESSAGE
HARDWARE
/SOFTWARE
ERROR
LOCUS COMMENT/ACTION