Siemens 420 manual PID controller technological controller

3 Functions Issue 07/04

3.11PID controller (technological controller)

Parameter range:	P2200
	P2201 – r2294
Warnings	-
Faults	-
Function chart number:	FP3300, FP3310, FP3400, FP5100
Features:
- cycle time:	8 ms

MICROMASTER has an integrated technological controller (PID controller, enabled via P2200). This can be used to process basic higher-level control functions. These typically include:

Pressure control for extruders Water level control for pump drives Temperature control for fan drives And similar control tasks

The technological setpoints and actual values can be entered via the PID motorized potentiometer (PID-MOP), PID fixed setpoint (PID-FF), analog input (ADC) or via serial interfaces (USS on BOP link, USS on COM link, CB on COM link) (refer to the example). The appropriate parameterization of the BICO parameter defines which setpoints or actual values are to be used (refer to Fig.

3-36).

PID

P2257

P2258

P2261

P2280

P2285

MOP

ADC

P2254

0

Motor

PID

PID

PID

P2253

PID

1

control

PID

SUM

RFG

PT1

−

FF

P2269

P2270

∆

PIDOutput

PID

USS

BOP link

USS

P2264

PID

PID

PT1

SCL

COM link

CB

P2200

P2265

P2271

COM link

Fig. 3-36 Structure of the technological controller (PID controller)

MICROMASTER 420	Operating Instructions
106	6SE6400-5AA00-0BP0