UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Caterpillar


Abbreviations and Acronyms

Usage:

UPS 250 APZ
The following table is a list of abbreviations and acronyms that is used in this manual.

Table 1
Abbreviations and Acronyms  Definitions 
ACI  AC Interface PWA 
APC  Active Power Controller 
ARM  Armature 
Aux  Auxiliary 
AVR  Automatic Voltage Regulation 
BBT or BBRG TEMP  Bottom Bearing Temperature 
BCC  Bypass Cabinet Controller PWA 
BFC  Bottom Field Coil 
BR  Diode Bridge 
C or CAP  Capacitor 
CAF  Comm/Accel Fiber optic (PWA) 
CAL  Comm/Accel LED (PWA) 
CAN  Controller Area Network 
CB  Circuit Breaker 
COM  Common 
CT  Current Transformer 
DC  Direct Current 
DCI  Direct Current Interface 
EMI  Electromagnetic Interference 
EMO  Emergency Module OFF 
EPO  Emergency Power OFF 
ESS  External Source Sync (PWA) 
Fuse 
FAN  Fan Controller (PWA) 
FWI  Flywheel Interface 
HVI  High Voltage Interface (PWA) 
I/O  Input/Output 
IGBT  Insulated Gate Bipolar Transistor 
Contactor, Relay, or Circuit Breaker 
MBP  Maintenance Bypass 
MMS  Multiple Module System 
MMU  Multiple Module Unit 
NaN  Not a Number 
NC  Normally Closed 
NO  Normally Open 
PCC  Parallel Cabinet Controller PWA 
PCI  Parallel Cabinet Interface PWA 
PS  Power Supply 
PWA  Printed Wire Assembly 
PWD  Power Distribution 
PWR  Power 
Resistor 
RPS  Rotor Position Sensor 
SCR  Silicon Controlled Rectifier 
SDAT  Serial Data 
SIO  System I/O PWA 
SIOD  System I/O Daughter (PWA) 
SKI  SKiiP Interface 
SKiiP  Semikron Integrated Intelligent Power 
SMS  Single Module System 
SW  Switch 
Transformer 
TB  Terminal Board 
TBT or TBRG TEMP  Top Bearing Temperature 
TFC  Top Field Coil 
UPS  Uninterruptible Power Supply 
ZZC  Zig-Zag Controller PWA 

Caterpillar Information System:

UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies System Overview
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