HP LTO Ultrium Technical Reference Manual page 125

Error Description
7634h The tape thickness is too great to be handled properly by the servo system.
An ATS speed change operation (AdjustSpeed) timed out waiting for tape to reach target
7635h
speed.
7636h An ATS speed change operation (AdjustSpeed) was attempted while the tape was not moving.
While trying to park the pin, LP2 was seen, but LP1 was not seen after rotating the grabber
7637h
CCW.
7638h Threading timed out while waiting for the half moon to seat onto the back reel.
7639h Tape motion apparently stopped while waiting for head positioning to complete.
763Ah Unthread timed out during the initial rewind of tape back into the cartridge.
763Bh Timed out during an operation to set tape position and speed.
763Ch Timed out during an operation to set the tape position.
763Dh Timed out during a RecoverTape operation.
763Eh The front reel did not rotate during the tape slack removal process.
763Fh Timed out waiting for back reel to reach position where leader block is fully seated.
7640h Timed out waiting for back reel to rotate to the threading reversal point.
7641h Timed out waiting for back reel to rotate to the reverse threaded position.
7642h Timed out waiting for tension to be established during the reverse threading process.
7643h Timed out waiting for the reverse threading target position.
7644h Timed out waiting for leader block to detach during an unthread.
7645h Timed out waiting for tension to be established during the reverse unthreading process.
7646h Timed out waiting for speed to be established during the reverse unthreading process.
7647h A fatal reel fault occurred during the time when the tape was being stopped.
7648h Back reel stalled and was not rotating when determining thread direction.
7649h An operation that determines thread direction timed out.
764Ah Warning: Tape speed error integrator value is very large.
764Bh Timed out waiting for back reel to rotate to the unthreading reversal point.
764Ch Timed out waiting for tape to reach unthreading reversal slow down point.
764Dh Timed out waiting for tape to reach unthreading turn around point.
Front reel turning CCW but should be CW after going through critical point during recover
764Eh
tape process.
Tape motion unexpectedly stopped during recover tape process of rewinding based on radius
764Fh
estimate.
Volume 1: hardware integration 125