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7.Drive Diagnostics
Error set: Two set of error codes exist. The definition of the error is dependent upon when set is taken from as
follows:
0 - Runtime errors
2 - Drive diagnostic errors
Error code: Error codes for each error set are described in clause 7.2.6
Result A: Typically this byte indicates the logical sub-assembly that failed:
1 - Drive Mechanism
2 - Drive Circuitry
Note: This byte has alternate meanings with some diagnostics. Refer to clause 7.2.6.
Result B: Typically this byte is unused however, this byte has alternate meanings with some diagnostics. Refer to
clause 7.2.6.
Test number: This is the test number to which the message applies (if a test fails within a sequence, the individual
test number will be returned).
Note: Diagnostic test 30 (Front Panel Check) will light each of the front panel LEDs so that the operator can verify
that the LEDs are functioning. There is no error detection within the drive for this test and therefore the Error Code,
Result A and Result B will always be ZERO.
SONY AIT-4 drive SDX-900V series Ver.2.1
7-5
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