DC-bus operation Basic dimensioning General information 7 7.5 7.5.1 7.5 Basic dimensioning 7.5.1 General information The Drive Solution Designer (DSD) PC software helps you to dimension your drive network. For expert advice, you may also contact your Lenze sales representative when dimensioning your application. Time/performance diagram For determining the performance of your drive network, create a time/performance diagram for all axes for a complete machine cycle. The power requirements of the drive network are calculated by adding the individual performances occurring at the same time. Positive results show the AC requirements for the dimensioning of the power supply units.
Negative results show the brake power to be dissipated via brake choppers at the brake resistor. 12 13 11 1 2 3 4 5 6 7 8 9 10 P res P res t 0 P 1 0 P 2 0 P 3 0 P 4 t 0 13 11 1 2 3 4 5 6 7 8 9 10 12 T/P-diag001 Tab. 7.5-1 Example time/performance diagram P 1 ... P 4 Individual performances of axes 1 ... 4 P total Addition of the individual performances P total Average of the individual performances 7.5-1 EDS94SPP101 EN 3.1-04/2007