Siemens 420 manual Selecting via BOP or AOP, Parameters / keys, AOP at the BOP link

Issue 07/04 3 Functions

If the motorized potentiometer is to be used as setpoint source, then either parameter P1000 or P0719 should be modified or the BICO parameter r1050 should be connected to the main setpoint P1070 or supplementary setpoint P1075. Contrary to parameter P0719, when parameter P1000 is modified, this implicitly changes BICO parameters P1070, P1075.

Example: Setpoint via the motorized potentiometer (MOP)

a) Standard method	→	P1000	= 1
b) BICO method	→	P1070	= 1050
		P1075	= 0

The MOP is configured using the following parameters and has the mode of operation as shown in Table 3-16:

Limits using the minimum frequency P1080 or maximum frequency P1082 Ramp-up/ramp-down time P1120 or P1121

Inhibits MOP reversing function P1032 Saves the MOP setpoint P1031 MOP setpoint P1040

Table 3-16 Mode of operation of the MOP

Motorized potentiometer		Function
Lower	Raise
0	0	Setpoint is frozen
0	1	Raise setpoint
1	0	Lower setpoint
1	1	Setpoint is frozen

Selecting via BOP or AOP

The following settings / operator actions should be made when selecting the motorized potentiometer using the BOP or AOP:

Table 3-17 Selecting the motorized potentiometer

Parameters / keys		BOP		AOP (at the BOP link)
Command	P0700	1		4
source
Setpoint	P1000		1
source
	P1035	-		2032.13 (2032.D)
	P1036	-		2032.14 (2032.E)
		Raise MOP output frequency
		Lower MOP output frequency

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	103