Rockwell Automation 1302 575v AC Drive - Canada Only - Manual (Page 68)

8–10 Programming
Publication 1302-5.0 — January, 1998
FĆ11 Remote Reference Gain
This parameter scales the
maximum remote speed
reference to match external
equipment.
Parameter Range:
Default Setting:
Step Size:
60% to 100% of full scale maximum
reference
100%
0.10%
Normally, the maximum speed reference (the amount of reference at maximum speed, FĆ04) is either 10
VDC or 20 mA. The reference gain is used to scale the speed reference to another value (for example,
9.5 VDC or 19 mA). Enter the parameter value in percent of full scale reference.
To calculate the scaled reference if you are usinga 0 to 20 mA remote reference, use the following
equation:
Desired Maximum Reference (mA)
Reference Range (20)
x 100 = % gain (mA reference)
Example
If the remote speed reference is 0 to 20 mA and the maximum reference required is 19.2 mA, scale as
follows:
19.2
20
x 100 = 96% gain
To calculate the scaled reference if you are usinga 0 to 10 VDC remote reference, use the following
equation:
Desired Maximum Reference (VDC)
Reference Range (10)
x 100 = % gain (VDC reference)
Example
If the remote speed reference is 0 to 10VDC and the maximum reference required is 9.5 VDC, scale as
follows:
9.5
10 x 100 = 95% gain