Rockwell Automation 1336F PLUS II Custom Firmware Instructions - EN921 - Manual (Page 6)

6 EN921 - Variable Voltage w/ PI Power/Current Control
Voltage PI
[PI Feedback]
This parameter displays the current value of the reference
selected by [PI Fdbk Select].
Parameter Number 218
Parameter Type Read Only
Display Units / Drive Units None / 4096 = 100%
Factory Default None
Minimum Value –4915
Maximum Value 4915
[PI Error]
The value of the error calculated by the PI loop. This value
is the difference between [PI Reference] & [PI Feedback]
and determines the PI output.
Parameter Number 219
Parameter Type Read Only
Display Units / Drive Units None / 4096 = 100%
Factory Default None
Minimum Value –4915
Maximum Value 4915
[PI Output]
The current output of the PI loop is displayed with this
parameter. This output is used as the reference for the
voltage output.
Parameter Number 220
Parameter Type Read Only
Display Units / Drive Units 1 Volt / 4096 = Drive Rated Volts
Factory Default None
Minimum Value –120% Rated Voltage
Maximum Value 120% Rated Voltage
[KI Process]
This parameter sets the integral gain of the process PI
loop.
Parameter Number 221
Parameter Type Read/Write
Display Units / Drive Units NA / NA
Factory Default 128
Minimum Value 0
Maximum Value 2048
[KP Process]
This parameter sets the proportional gain of the process
PI loop.
Parameter Number 222
Parameter Type Read/Write
Display Units / Drive Units NA / NA
Factory Default 256
Minimum Value 0
Maximum Value 2048
[PI Neg Limit]
This parameter sets the lower (negative) limit of the PI
output.
Parameter Number 223
Parameter Type Read/Write
Display Units / Drive Units None / 4096 = 100%
Factory Default -341
Minimum Value –4915
Maximum Value 4915
[PI Pos Limit]
This parameter sets the upper (positive) limit of the PI
output.
Parameter Number 224
Parameter Type Read/Write
Display Units / Drive Units None / 4096 = 100%
Factory Default 341
Minimum Value –4915
Maximum Value 4915
[PI Preload]
Sets the value used to preload the PI integrator when “Set
Output” or “Preload Int” bits equal “1” in [PI Config].
Parameter Number 225
Parameter Type Read/Write
Display Units / Drive Units None / 4096 = 100%
Factory Default 0
Minimum Value –4915
Maximum Value 4915