Chapter 3
55
VEE Measurement Program Operation
Setup Menu
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Measure R/W offset
Sets the read/write offset automatically even if
the head position is changed. When this
parameter is checked, track profile
measurement is performed on background just
after head position is changed, then [Write
Offset] and [Read Offset] parameters are
updated to the appropriate values. Click the
[Setting] button to set the parameters for
background track profile. It is better to
uncheck this parameter if ‘Skew’ is set below
-30 degrees.
NOTE
When parameter [Skew] is set below -30 degrees the E5022/E5023 system can not
guarantee a track offset of
±
6
µ
m, this could result to an error
“hpe5022_ERROR_INV_PARAMETER”. When the skew angle is set below -30 degrees
the user may need to uncheck the [Measure R/W offset] parameter or set the range of the
background track offset to a value lower than
±
6
µ
m to avoid generating an error. Refer to
“hpe5022_headPosition” function of the programming manual for details.
NOTE
When you set the Track #, you must properly specify the parameters in the Data Area and
Drive frames from the [Spinstand] menu. This will automatically compute and set the
radius and skew angle. When you specify a new [Radius] the track number nearest to the
specified value will appear as the new Track #.
5. Click the [Return] button to return to main menu.
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