Siemens 440 operating instructions Data sets, Command data set CDS

Issue 10/06 6 Commissioning

6.4.19Data sets

For many applications it is beneficial to have the possibility to change several parameter settings simultaneous during operation or in the state ready to run with an external signal. By indexing it is possible to set a parameter to several values which can be activated by data set change-over. There are the following data sets:

¾CDS Command Data Set

¾DDS Drive Data Set

Command data set (CDS)

P0810 =...

P0811 =...

Command data set CDS bit 0 (local / remote) 0

Selects the command source in which bit 0 should be read-out to select a command data set (CDS).

Selecting CDS

	BI: CDS bit 1	3					CO/BO: Act CtrlWd2
	P0811						r0055 .15
	(0:0)	2					r0055 .15
BI: CDS b0 loc/rem							CO/BO: Act CtrlWd1
	P0810	1					r0054 .15
	(0:0)						r0054 .15
		0					t
			Changeover time		Changeover time
Active CDS				approx. 4 ms		approx. 4 ms
	r0050	3
		2					CO: Active CDS
		1					r0050
		0					t

The currently active command data set (CDS) is displayed using parameter r0050.

BI: CDS bit 1

Selects command source from which to read Bit 1 for selecting a command data set (see P0810).

Example for CDS changeover:

CDS1: Command source via terminals and setpoint source via analog input (ADC)

CDS2: Command source via BOP and setpoint source via MOP CDS changeover is realized using digital input 4 (DIN 4)

Steps:

1.Carry-out commissioning for CDS1 (P0700[0] = 2 and P1000[0] = 2)

2.Connect P0810 (P0811 if required) to the CDS changeover source (P0704[0] = 99, P0810 = 722.3)

3.Copy from CDS1 to CDS2 (P0809[0] = 0, P0809[1] = 1, P0809[2] = 2)

4.Adapt CDS2 parameters (P0700[1] = 1 and P1000[1] = 1)

P0810 = 722.3

DIN4

Terminals

BOP

ADC

MOP

P0700[0] = 2	0
P0700[1] = 1	1
P1000[0] = 2	0
P1000[1] = 1	1

Sequence control

Setpoint	Motor
channel	control

MICROMASTER 440	69
Operating Instructions (Compact)