ABB ACS6080 User Manual page 29

Term/Abbreviation
FT
FSCD
Ground (noun)
ground (verb)
GCT
GTO
GUSP
HVD
I/O
IEC
IFU
IGBT
IGCT
ISU
IM
INT
INU
I/O device
I/O module
I/O station
IOI
3BHS842007 E01 REV C
Table 1-1 Terms and abbreviations (continued)
Definition
Firing Through
Synonym for protective firing. Meaning: simultaneous
gating of the power semiconductors of the inverter unit
to effectively protect the semiconductors against
overvoltage and overcurrent.
Fast Short-Circuit Detection
Earth
The conducting path (eg, conductor) between the electric
equipment (eg, frequency converter) and the earth. The
electric equipment is connected to the earth, eg, by a
grounding set or a grounding switch.
Gate-Commutated Thyristor
Gate Turn-Off thyristor
Gate Unit Supply Power
High Voltage Divider
Input / Output
International Electrotechnical Commission
Input Filter Unit
Insulated-Gate Bipolar Transistor
Integrated Gate-Commutated Thyristor
Isolation Unit
Induction Motor
Interface circuit board
Inverter Unit
The INU converts the three DC voltages to the required AC
motor voltage. The unit is designed as a self-
commutated, 3-level voltage source inverter consisting of
three identical power modules.
Term ABB's S500 I/O system. An I/O device consists of a
module termination unit (MTU) and one I/O module.
Term of ABB's S500 I/O system. The I/O module is an
active input or output device for digital or analog signals.
Term of ABB's S500 I/O system. The I/O station typically
consists of a bus modem and several input and
output devices.
Inverter Output Isolator
The IOI is a switching device that disconnects the inverter
from the motor.
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