UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Caterpillar

Abbreviations and Acronyms

Usage:

The following table is a list of abbreviations and acronyms that are used in this manual.

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Table 1
Abbreviations and Acronyms	Definitions
APC	All Purpose Controller
APC2	All Purpose Controller 2
ACCEL	Accelerometer
ARM	Armature
Aux	Auxiliary
AVR	Automatic Voltage Regulation
BBS	Breaker Bell Alarm Supervisor Board
BBT or BBRG TEMP	Bottom Bearing Temperature
BCS	Breaker Contactor Status Board
BFC	Bottom Field Coil
BR	Diode Bridge
C or CAP	Capacitor
CAF	Comm/Accel Fiber Optic Board
CAL	Comm/Accel LED Board
CAN	Controller Area Network
CB	Circuit Breaker
CCI	Customer Contacts Interface Board
CNN	Connector
COMM	Commutation
CSDS	Clean Source Disconnect Switch
CSN	CS Net
CT	Current Transformer
CTI	Current Transformer Interface
DC	Direct Current
DCI	Direct Current Interface
DCSW	Direct Current Switch
DGL	Digital Gate Logic Board
DIF	Display Interface Board
DNI	Dual Network Isolation
EMO	Emergency Module OFF (CSHV)
EPO	Emergency Power OFF (UPS)
ESS	External Source Sync Board
F	Fuse
FCD	Field Coil Driver
FWA	Flywheel A
FWB	Flywheel B
FWI	Flywheel Interface
GM	Graphics Master Board
GPI	General Purpose Interface Board
GPIO	General Purpose Interface Output
GUI	Graphical User Interface
HCT	Hall Current Transformer
HCTI or CTI	Hall Current Transformer Interface
HVI	High Voltage Interface Board
I/O	Input / Output
IGBT	Insulated Gate Bipolar Transistor
K	Contactor or Relay or Circuit Breaker
MBP	Maintenance Bypass
MPS	Maintenance Power Supply Board
PBO	Parallel Bus Output Breaker (in PCC only)
PCC	Parallel Controls Cabinet
PCI	Parallel Cabinet Interface
PIB	Parallel Bus Input Breaker (in PCC only)
PS	Power Supply
PWA	Printed Wire Assembly
PWD	Power Distribution
PWR	Power
R	Resistor
RPS	Rotor Position Sensor
SCR	Silicon Controlled Rectifier
SDAT	Serial Data
SKI	SKiiP Interface
SKiiP	Semikron Integrated Intelligent Power
SW	Switch
T	Transformer
TB	Terminal Board
TBT or TBRG TEMP	Top Bearing Temperature
TFC	Top Field Coil
TSM	Thermal Switch Monitor Board
USI	Universal Static Switch Interface Board
UVR	Under Voltage Regulation