Siemens MICROMASTER 440 - Fig. 3-12 Changing-Over DDS

Issue 10/06 3 Functions
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
67
3-12). Drive data sets can only be changed-over in the "Ready" state and this takes
approx. 50 ms.
t0
1
2
3
(0:0)
BI: DDS bit 0
P0820
(0:0)
BI: DDS bit 1
P0821
t0
1
2
3
CO/BO: Act CtrlWd2
r0055
r0055
CO/BO: Act CtrlWd2
r0055
r0055
.04
.04
.05
.05
r0051[1]
DDS active
Selection of DDS
aprox. 50 ms aprox. 50 ms
Switch-over timeSwitch-over time
Drive running
Drive ready
t
Fig. 3-12 Changing-over DDS