Terms And Abbreviations - ABB BCU-02 Hardware Manual

8 Introduction to the manual

Terms and abbreviations

Term Description
BCU Type of control unit
Drive Frequency converter for controlling AC motors
FSO-xx FSO-12 or FSO-21 safety functions module
Inverter Converts direct current and voltage to alternating current and voltage
LED Light-emitting diode
RDCO DDCS communication module
SD card Secure digital memory card
SDHC card Secure digital high capacity memory card
STO Safe torque off (IEC/EN 61800-5-2)
Later in this manual, the term converter replaces terms drive, converter, and inverter.