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ABO U T T H IS D O C UM E NT
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Abbreviations & Terms
The following table lists terms and abbreviations user should be familiar with when using this
manual. Some of the terms and abbreviations used in the manual are unique to ABB and might
differ from the common use.
Abbreviation/Term
Meaning
SFC
Static Frequency Converter
LV
Low Voltage.
Voltage level up to 1000 V
ac
or 1500 V
dc.
LV PSU
24 Vdc internal power supply for fans and electronics
MV
Medium Voltage.
Voltage level between 1 kV
ac
and 35 kV
ac
.
PCS120
Power Conversion System 120.
The PCS120 is the product platform for the ABB power conditioning
products.
PEBB
Power Electronic Building Block.
PE120-U<n>
Platform Enclosure 120.
PE120 is the enclosure that contains several PEBB. The PE120 could
be main controller or hub.
MC
Main Controller.
UC120main controller located in the PE120-U1 enclosure.
HUB
HUB controllers are located in PE120-U2 and PE120-U3 cabinets re-
spectively. The main function is to transfer the information to the
main controller.
GDM
Graphical Display Module.
Has the local Human Machine Interface (HMI) and it is located in the
PE120-U1 enclosure.
HMI
Human Machine Interface
CB
Circuit Breaker
PE
Chassis Protective Earth.
PE-I
Inverter Earth.
PCC
Point of Common Coupling.
The PCC is the point in the electrical power supply system where
the responsibility of the utility changes to the industrial customer.
The utility is responsible for providing clean voltage and current
with respect to harmonic distortion up to the PCC. The industrial
customer is responsible not to distort voltage and current by its
electrical systems.
Line voltage
RMS line to line voltage of the main power supply of the input.
PCB
Printed Circuit Board.