Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 104)

Publication 8720MC-IN002A-EN-P — December 2002
B-10 Using the Human Interface Module (HIM)
Changing a Bit in a Bit
Pattern Some of the bit pattern parameters can be changed. For example, if
you wish to change the configuration selections for the auto tune
procedure. First, using the increment, decrement and enter keys
navigate to parameter 546 in the file “Procedure” and the group “Auto
Tune”. This is a bit pattern used to select the auto tune options. Using
the select key you can highlight the bit you wish to change.
Depressing the enter key changes the bit from 1 to 0. Depressing the
enter key again changes the bit back to 1. When the bit is highlighted
the top line contains the description of the bit. For example bit 0 =
“Auto Save”.
Using the EEProm Mode You can use EEProm mode to save values, recall values, reset values
to the factory defaults, upload a parameter profile from the drive to
the HIM, or download a parameter profile. To perform any of these
functions, you need to first enter EEProm mode by selecting it from
the Choose Mode prompt.
Saving Values/Recalling Values
The 8720MC Drive stores parameters in flash memory. When the drive
is shipped from the factory a set of default values for all the
parameters is provided. Most of these default parameters are suitable
for a wide variety of applications and therefore will not need to be
changed. The motor and amplifier specific parameters in the file
“Motor/Drive/Fdbk” are directly read from the motor feedback device
and the power structure of the 8720MC therefore these parameters
should not be changed. Several of the Servo Loop parameters can be
auto tuned by the drive and therefore these parameters should not
require manual entry by the user. Under the EEProm mode you can:
1. Select Restore Defaults
2. Select Save Values
3. Select Recall Values
4. Upload or download parameters from the HIM or DriveExplorer