Fig. 3-12 Changing-Over Dds - Siemens MICROMASTER 440 Operating Instructions Manual

3 Functions
Drive data sets are changed-over using the BICO parameter P0820 and P0821
whereby the active drive data set is displayed in parameter r0051 (refer to Fig.
3-12). Drive data sets can only be changed-over in the "Ready" state and this takes
approx. 50 ms.
Drive running
Drive ready
Selection of DDS
BI: DDS bit 1
P0821
BI: DDS bit 0
P0820
DDS active
r0051[1]
Fig. 3-12
64
3
(0:0)
2
1
(0:0)
0
Switch-over time
aprox. 50 ms
3
2
1
0
Changing-over DDS
CO/BO: Act CtrlWd2
CO/BO: Act CtrlWd2
t
Switch-over time
aprox. 50 ms
t
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
Issue 10/03
t
r0055 .05
r0055
.05
r0055 .04
r0055
.04