Connections Of The Rdcu - ABB ACS800-04 Hardware Manual

Connections of the RDCU

The RDCU control unit contains the RMIO board for the control cables.
WARNING! Handle the fiber-optic cables with care. When you disconnect
optic cables, always hold the connector. Do not touch the ends of the fibers
with bare hands as the fiber is sensitive to dirt.
Control panel
Strain relief
Internal power supply cable
coming from the drive module
Note: The lowest pin (ExtPower) is
not in use. Even when the RMIO
board is powered from an external
X34
power supply, do not use the
ExtPower pin, but upper pins.
TXD = transmitter
Fiber-optic cables coming from the
drive module to the RMIO board
Electrical installation 69
RXD = receiver