Control Boards And Optional Modules; Rdcu-12C; Ndcu-33Cx; Rdco-02C - ABB ACS800 Series Hardware Manual

34
Device Description
A411 NCAN module
A45 Grid-side current and voltage measuring unit
U6 CROWBAR, protection device of rotor-side
E11 Heater
G10
UPS

Control boards and optional modules

RDCU-12C

Grid-side converter is controlled by its own RDCU control unit (containing the RMIO-
12C board). The RDCU is connected to the grid-side converter modules by a fiber
optic link. For further information, see RDCU drive control units hardware manual
[3AFE64636324 (English)].

NDCU-33CX

Rotor-side converter is controlled by its own NDCU control unit (consisting of the
NIOC-02C and AMC-33 boards). The NDCU is connected to the rotor-side converter
modules by a fiber optic link, distributed through APBU optical branching unit.

RDCO-02C

DDCS channel board (RDCO) is an extended module for the RMIO board. It
provides optic fiber connection for PC tool, overriding controller, master-follower
communication and additional I/O modules.

NTAC-02

NTAC-02 pulse encoder interface module offers an interface for a digital pulse
encoder connection. A pulse encoder can be used if accurate speed or position
(angle) feedback from the motor shaft is required.

NCAN-02C

NCAN-02 adapter module is an optional fieldbus adapter module. Wind turbine
converter can be connected to a CANopen serial communication bus through
NCAN-02 module.

NETA-21C+NEXA-21C

NETA Ethernet adapter module is an optional device for browser-based remote
monitoring of the wind turbine converter via Ethernet. Multiple converters (up to 9)
can be connected to the network through the DDCS branching unit (NDBU-85/95) or
using a ring topology.

APBU-44C

APBU-44C PPCS branching and data logger unit is used to implement the parallel
connection of multiple grid-side or rotor-side converter modules. The APBU-44C
Hardware description