Step By Step Guide - ABB ACS800 Application Manual

10

Step by step guide

1) Select the converters and preselect the main supply connection. See
main supply connections
2) Check from
3) Check by using equation 1 that the load does not exceed the total power limit
P
out.tot
4) Select the fuses, cables and possible contactors for the DC side. See Fuses,
Cables
5) Calculate the braking power and determine whether the braking cycle can be
performed and whether an internal or an external brake chopper is needed. See
Allowed braking power and need for a brake
6) If resistor braking is needed, select the internal or external brake chopper, the
resistor and the contactor. See
Contactors, DC bus and brake circuit.
7) Set up the common DC system according to the wiring instructions. See Wiring.
8) If the input terminals of frame sizes R7 and R8 are left unconnected, make sure
that the AC fans are powered separately. See
R7 and R8.
9) Set the common DC system related parameter values. See
Step by step guide
and
Table 1 that the connection is possible.
of the system. See Power limit.
and Contactors, DC bus and brake circuit.
Appendix A Charging circuit capacity.
resistor.
Internal brake chopper,
Appendix B Powering the AC fans of
Possible
External brake chopper
Start-up.
and