Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 57)

DRIVE SETUP AND ADJUSTMENT
49’1340 e FlexPak 3000 4-15
3. OTHER - Customize a User Unit Label:
This choice allows the user to define a 1 to 6 character string for the units of a parameter in the
speed parameter class. Thus, the user defines the units for a class and every parameter in that
class will appear in those units i.e., user units. Parameters not in the class are not affected by
the user unit definitions. Parameters for which user units may be defined will be subsequently
displayed in terms of those units and will require value entry in such terms.
For example, suppose the user wants to define speed related parameters in terms of inches per
second rather than the standard units of RPM. All parameters in the speed class (MAXIMUM
SPEED, MINIMUM SPEED, etc.) will use this single set of units (unit label: "INCH/S"; scaling
constant: 100 IN/SEC = 1750 RPM) defined for the speed class.
First, use the left and right arrow keys to select the column to be changed. Use the up arrow
and down arrow keys to define the characters in the label. The label may be from 1 to 6
alphabetic characters in length. For example: "INCH/S".
Define Speed Units
Define Units Tag.
INCH/S
$$
$$
Fault
Alarm
Interlock OK
Drive Ready
Running
Current Limit
Torque Limit
PROGRAM KEYPAD MANUAL FORWARD
Second, enter the scaling constant at the following display which relates the user unit to the
standard unit. The OIM will use this constant to translate between user and standard units.
Define Speed Units
FULL SCALE VALUE 100
+ 100
1 <-> 10000
$$
$$
Fault
Alarm
Interlock OK
Drive Ready
Running
Current Limit
Torque Limit
PROGRAM KEYPAD MANUAL FORWARD
In the previous example, the OIM would translate between user and standard units as follows:
user units standard units
100 INCH/S 1750 RPM
50 INCH/S 875 RPM
-20 INCH/S -350 RPM
0 INCH/S 0 RPM
The scaling constant may be in increments of 0.01 by entering the number of decimal places at
the following screen. NOTE: this screen will appear only if the full scale value is less than 4094.
Define Speed Units
Enter the number of decimal places:
NONE
ONE
TWO
$$
$$
Fault
Alarm
Interlock OK
Drive Ready
Running
Current Limit
Torque Limit
PROGRAM KEYPAD MANUAL FORWARD
The OIM returns to the Define User Units menu after the number of decimal places has been
entered.