Rockwell Automation 1302 575v AC Drive - Canada Only - Manual (Page 69)

8–11 Programming
Publication 1302-5.0 — January, 1998
FĆ12 Remote Reference Offset
This parameter scales the
remote speed reference (0 to
10VDC or 0 to 20 mA) to a
minimum value.
Parameter Range:
Default Setting:
Step Size:
0% to 40% of full scale minimum reference
0%
0.10%
Typically, the value of the minimum speed reference (the amount of reference at minimum speed, FĆ03) is
either 0 VDC or 0 mA. Enter the parameter value as a percentage of the full scale reference to be offset from
minimum speed.
To calculate the scaled minimum reference, use the following equation:
Desired Minimum Speed Offset
Reference Range
100 + %offset
Scaling Examples
Example 1: If the remote analog input speed reference is 0 to 20 mA (J6 set on terminals 2 and 3), and
the available analog reference signal is 4 to 20 mA, use FĆ12 to obtain minimum speed with minimum
analog input as follows:
Example 2: If the remote analog input speed reference is 0 to 10 VDC (J6 set on terminals 1 and 2), and
the available signal is offset 0.4 VDC, use FĆ12 to obtain minimum speed with minimum analog input as
follows:
4
20 x 100 = 20% offset
0.4
10 x 100 = 4% offset
FĆ13 Percent Selected Speed Reference Display Enable
This parameter enables or
disables the fourth monitor
mode display.
Parameter Range:
Default Setting:
Step Size:
ON = Fourth monitor mode display is
enabled.
OFF = Fourth monitor mode display is
disabled.
OFF
N/A
If FĆ13 = ON, the current value of the active speed reference can be displayed by pressing the
Mode
Enter
key
(while the Drive is running) until all three monitor mode LEDs are on. The active speed reference is
displayed as 1 to 100% of maximum speed (FĆ04).
If FĆ13 = OFF, the active speed reference will not be displayed.
Refer to Chapter 3 for more information on the monitor mode displays.