10 Introduction to the manual
Terms and abbreviations
Term/abbreviation Definition
AC 800M Type of programmable controller manufactured by ABB.
ACS800 A product family of ABB drives
ACS-AP-I Types of control panel used with ACS880 drives
ACS-AP-W
BCU Type of control unit used in ACS880 drives.
CCR Central control room.
DDCS Distributed drives communication system; a protocol used in
communication between ABB drive equipment
FCB Function Chart Builder; Programming language to program RMIO
board.
GRR Grid rotor resistance; Connected to rotor and used for controlling the
speed of slip ring induction motor.
ID run Motor identification run. During the identification run, the drive will
identify the characteristics of the motor for optimum motor control.
IGBT Insulated gate bipolar transistor; a voltage-controlled semiconductor
type widely used in inverters and IGBT supply units due to their easy
controllability and high switching frequency
ISU An IGBT supply unit; type of supply unit implemented using IGBT
switching components, used in regenerative and low-harmonic drives.
LCL Line filter. Inductor-capacitor-inductor filter for attenuating high order
harmonics in IGBT supply units.
MSW Main status word; Indicates the status of converter/inverter.
RSYNC Synchronization unit for bump less transfer. The RSYNC ensures
smooth and automated changeover from GRR to SPRS.
RMIO Motor control and I/O board. Drive control unit.
RDCO-0x DDCS communication module.
SPRS Slip power recovery system; An external system connected to the rotor
circuit, which provides excellent torque and speed control. Also
recovers the power from rotor and feeds back to the power system
avoiding wastage of energy.
ZCU Type of control unit used in ACS880 drives.
The control unit may be fitted onto the power module, or installed
separately.
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