Lenze 9400 Manual - Manual (Page 312)

DC-bus operation
Introduction
Advantages of a drive system
8

312 EDS94SPP101 EN 7.1
8.1.3 Advantages of a drive system
When several controllers are operated in a DC-bus connection (DC bus), this offers the
following advantages:
ƒ
Energy exchange between controllers in generator-mode (braking) and motor-mode
operation.
ƒ The energy exchange reduces the supply power from the AC mains.
ƒ DC-supply modules or feeding single-axis controllers can be dimensioned with a
lower rated power.
ƒ
The energy exchange reduces the braking losses in generator-mode operation.
Advantages for installation:
ƒ Only one AC-mains connection (e.g. at the DC-supply module).
ƒ Reduced wiring costs.