Lenze 9400 Manual - Manual (Page 311)

DC-bus operation
Introduction
Comparison single-axis controllers / multi-axis controllers
8

311 EDS94SPP101 EN 7.1
8.1.2 Comparison single-axis controllers / multi-axis controllers
As controllers of the ”Servo Drives 9400” series, the ”Single Drive, E94AS…” are available
in the power range up to 695 A (370 kW) and the ”Multi Drive, E94AM…” are available up
to 32 A (15 kW).
The single-axis controllers (”Single Drive”) are designed for connection to AC mains
(3/PE AC). They are equipped with mains rectifiers, mains filters and brake choppers.
The multi-axis controllers (”Multi Drive”) are exclusively designed for connection to DC
mains (2/PE DC). They are equipped with DC busbars for easy assembly. In DC-bus
connections, power supply modules are used that contain mains rectifiers and brake
choppers. Mains filters must be specially dimensioned for each DC-bus.
E94AS... E94AM...
=
=
~
~
3
3
AC
M
= ~
3
2 DC
M
AR principle AR principle
Fig. 8-1 Single Drive/Multi Drive