Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR - Manual (Page 266)

Publication 1398-5.0 – October 1998
D-2 Creating Custom Motor Files
Drive and Motor File
Configuration with
ULTRA Master
At startup ULTRA Master examines the contents of the /MOTORDIR
subdirectory to determine the list of motors it will display. If a custom
motor file is to appear, it must be copied into the /MOTORDIR
directory before ULTRA Master is started. Each motor file is a binary
file that contains:
●
the motor parameter set,
●
a table ID number, and
●
a text string.
Because they are binary files, only ULTRA Master can be used for
editing and generation (i.e., you cannot edit motor files using a text
editor.)
Motor Parameter Set
The motor parameter set configures the ULTRA 200 Series drive to
control a specific motor. Motor parameters provide information about
the electrical properties, ratings and construction of the motor.
Subsequent sections of this appendix explain these properties with
meaningful depth. For now it is sufficient to know that accurate and
complete definition of the motor’s properties is necessary to achieve
good performance.
Table ID
The table ID number tells ULTRA Master whether the motor file
represents a standard motor or a custom motor:
●
Standard motor table IDs occupy the range 0 to 65534.
●
The custom motor table ID is 65535 (also known as “-1”).
Standard motor parameter sets are stored in the drive as well as in the
motor file. Thus ULTRA Master needs to transmit only the table ID to
select the motor model from the drive's personality EEPROM. For
custom motor files, ULTRA Master must transmit not only the custom
motor’s table ID but also the complete motor parameter set from the
custom motor file.
Text String
The text string allows ULTRA Master to display a meaningful name
in the motor model window. The text string displays one of three
possible messages when a motor is loaded into the drive:
●
“H-4030-P-H”, or equivalent if a valid motor model number is
loaded.
●
“Custom” if a custom motor file is loaded.
●
“Unknown” if an unrecognized motor file is loaded.