Rockwell Automation 1336S Plus FRN 1.xx-5.xx - Manual (Page 128)

5–50 Programming
[PI Preload] – Firmware 4.01 & later
Sets the value used to preload the PI intergrator
when “Set Output” or “Preload Int” bits equal “1” in
[PI Config].
Parameter Number 225
Parameter Type Read/Write
Display Units / Drive Units 0.01 Hertz /
±
32767 = Maximum Freq
Factory Default 0.00 Hz
Minimum Value – 8.33% of [Maximum Freq]
Maximum Value + 8.33% of [Maximum Freq]
PI Reference
PI Reference
Select
pi reference
∑
∑
√
PI Config.sqrt_fdbk
PI Config.inv_error PI Config.reset_int
PI Feedback
Freq Command
PI Error
Master Frequency Reference
Process KI
s
Process KP
Integral Term = 0
PI + Clamp
PI – Clamp
PI Output
Speed
Adder
Output Frequency
Speed
Command
Speed
Ramp
pi feedback
PI Feedback
Select
Compute
Speed
Accel
Control
+ –1
–
+
+
∑
PI Config.zero_clamp
speed ramp>0
+
+
PI Output
+32767
Parameter 65
–32767
–32767
+32767
0
0
Process PI