Siemens 440 Controller structures, Parameter Parameter text Example, P2264 CI PID feedback

6 Commissioning Issue 10/06

Controller structures

These structures are selected using parameters P2200 and P2251.

				Setpoint via		RFG		PID-RFG
			SUM		PID controller
1	P2200	= 0:0 2)	VSD *		−	ON:	active	ON:	-
	P2251	= 0				OFF1/3:	active	OFF1/3:	-
2	P2200	= 1:0 2)	−		PID control	ON:	-	ON:	active
	P2251	= 0				OFF1/3:	active	OFF1/3:	-
3	P2200	= 0:0 1)	VSD *		−	ON:	active	ON:	-
	P2251	= 1				OFF1/3:	active	OFF1/3:	-
4	P2200	= 1:0 1)		Dancer control		ON:	active	ON:	active
	P2251	= 1				OFF1/3:	active	OFF1/3:	active

1)	will take change with drive running	* Variable speed drive (VSD)
2)	change only taken when drive stopped

PID control

PID

MOP

ADC

PID

FF

USS

BOP link

USS

COM link

CB

COM link

ADC2

		P2257		P2258
P2254
	PID			PID
P2253
	SUM		RFG

P2264	PID
	PT1
P2200	P2265

P2261		P2280	P2285
	PID		PID
	PT1
		−
P2269	P2270
		∆PID
	PID
	SCL
P2271

0	0
	1

PIDOutput

&

P2251

Motor

control

Parameter	Parameter text	Example
P2200	BI: Enable PID controller	P2200	= 1.0	PID controller active
P2253	CI: PID setpoint	P2253 = 2224		PID-FF1
P2264	CI: PID feedback	P2264	= 755	ADC
P2267	Max. PID feedback	P2267		Adapt to the application
P2268	Min. PID feedback	P2268		Adapt to the application
P2280	PID proportional gain	P2280		Determined by optimizing
P2285	PID integral time	P2285		Determined by optimizing
P2291	PID output upper limit	P2291		Adapt to the application
P2292	PID output lower limit	P2292		Adapt to the application

64	MICROMASTER 440
	Operating Instructions (Compact)