Siemens 420 manual PID fixed setpoint PID-FF

Issue 07/04 3 Functions

3.11.2PID fixed setpoint (PID-FF)

Number:	7
Parameter range:	P2201 – r2224
Warnings	-
Faults	-
Function chart number:	FP3300, FP3310

Analog to the fixed frequencies (refer to Section 3.8), the PID controller has separate programmable PID fixed setpoints. The values are defined using parameters P2201 – P2207 and are selected using binector inputs P2220 – P2222. The selected PID fixed setpoint is available via connector output r2224 where it can be further processed (e.g. as PID main setpoint → P2253 = 2224).

3 methods are available to select the PID fixed setpoints, analog to the fixed frequencies (Section 3.8):

Direct selection

Direct selection + ON command Binary-coded selection + ON command

The methods are selected using parameters P2216 – P2218.

P0701 = 15
or
P0701 = 99, P2220 = 722.0, P2216 = 1
	P2220		1
DIN1	r0722.0			. . . .
		0
			2,3
	. .		0
	. .
			P2201
			. . . .	r2224

Fig. 3-38 Example to directly select the PID fixed frequency of fixed frequency 1 via DIN1

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	109