Cabinet line-up

The drive consists of several cubicles that contain the supply and motor terminals,

1 to 4 diode supply module(s), 2 to 6 inverter modules, and optional equipment.

The actual arrangement of the cubicles vary from type to type and the selected options.

Controls of the supply unit

The supply unit control program runs in the RDCU control unit located in the swing out frame. 

The RDCU is connected to the supply modules by a fibre optic link, and a separate wire set.

If there are parallel supply modules, the controls from the RDCU are distributed

to the modules with an optical branching unit (APBU board).

The RDCU is also connected to the inverter unit with a fibre optic link and to the panel through the panel

link.

Typically, the user controls the supply unit with the control devices mounted on the cabinet door.

The use of these control devices is described in the following subsections.

No additional control devices or connections are needed.

However, it is also possible to control the unit with the control panel and through the fieldbus.