User Guide
A-10  Ampex 1308910-01
Model No.
Running Head
Vendor-Specific ACL Condition Codes Returned Sense Data
0x04 0x55 0x00 0x26
Hardware Error
AC_UNLOAD_FAIL
Hardware Error, CHS Could Not 
Unload Cartridge from Tape Drive
The CHS could not unload the tape 
cartridge from the tape drive.
Make sure that:
• The cartridge to be unloaded 
is in the drive load port (i.e., 
ejected by the drive).
• The drive elevator is up.
0x04 0x55 0x00 0x37
Hardware Error
AC_RBT_PUT_FAILURE
Hardware Error, CHS Put Failure
The CHS was unable to put the tape 
cartridge into the destination bin.
Retry command. If it fails again, 
recalibrate the ACL (see the 
service manual).
0x04 0x55 0x00 0x38
Hardware Error
AC_RBT_GET_FAILURE
Hardware Error, CHS Get Failure; 
No Action Required
The CHS was unable to get the tape 
cartridge from the source bin.
Not required.
0x04 0x55 0x00 0x42
Hardware Error
AC_ROBOT_NULL_MOVE
Hardware Error, CHS Null Move; 
No Action Required
The command sent to the CHS did not 
require any CHS action.
0x04 0x55 0x9A 0x1A
Hardware Error
AC_RBT_TALLY_TIMEOUT
Hardware Error, CHS Timeout
A CHS hardware failure occurred.
A SCSI reset or power reset may 
bring the system back. If not, 
contact Ampex Technical 
Support.
0x04 0x55 0x9B 0x1B
Hardware Error
AC_RBT_TALLY_ERROR
Hardware Error, CHS Command Not 
Recognized
The CHS internal software is rejecting 
movement commands.
Table A-3. Vendor-Specific ACL Condition Codes (Continued)
ACL
Sense ASC ASCQ Condition
Key Code
Error Enumeration,
String, and Condition
Recovery Procedure










