Fgain – Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 User Manual
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Language Reference • Reference
Publication 1398-PM601A-EN-P — October 2000
WORDS
FET
Following Error Time
System
Purpose
Change the Following Error Time limit used in the program. The Following Error
Time limit is the length of time that the following error may exceed the Following
Error Limit without causing a fault. The following error is checked every position loop
update (2mS).
Syntax
FET = value
variable = FET
value
The value is entered in seconds with a resolution of 2mS. The
value can be a constant, a nonvolatile variable Gn, a volatile
variable Vn, or a system variable.
variable
The variable may be a nonvolatile variable Gn, a volatile vari-
able Vn, or a system variable.
Remarks
Changes made to this variable by a program are only in effect while the program is
running. When the program ends it will return to the value stored in the Personality
Module. If no change is made to this variable by the program, the value in the Person-
ality Module is used. The value in the Personality Module is set in the Parameter
menu, Gains/Limits dialog box.
See Also
FEL, FE, PFE
Example
FET = 1.0
V3 = FET
FGAIN
Acceleration Feedforward Gain
Gain
Purpose
Set the acceleration feedforward gain.
Syntax
FGAIN = value
variable = FGAIN
value
The value is entered in percent of command velocity and may
be changed anywhere in a program. Value can be a constant, a
nonvolatile variable Gn, a volatile variable Vn, or a system
variable.
variable
The variable may be a nonvolatile variable Gn, a volatile vari-
able Vn, or a system variable.
Remarks
Changes made to this variable by a program are only in effect while the program is
running. When the program ends it will return to the value stored in the Personality
Module. If no change is made to this variable by the program, the value in the Person-
ality Module is used. The value in the Personality Module is set in the Parameter
menu, Gains/Limits dialog box.
See Also
KFF, IG, PG
Example
FGAIN = 10
FG = V9
V4 = FGAIN