Perfect Harmony GENIII/e User’s Manual Commonly Used Abbreviations
A1A19000405A: Version 1.3 B-5
B
NC Normally Closed
NEMA National Electrical Manufacturer’s Association
NMI Non-Maskable Interrupt
No Normally Open
NVRAM Non-Volatile Random Access Memory
NXG Next Generation Control
NXG II Next Generation Control II
oamp Output Current
OLVC Open Loop Vector Control
O-M Overmodulation
OOS Out of Saturation (IGBT)
overld Overload
P Proportional (PID)
Pa Pascals
pb Push Button
PC Personal Computer or Printed Circuit
PCB Printed Circuit Board
PID Proportional Integral Derivative
PLC Programmable Logic Controller
PLL Phase Locked Loop
pot Potentiometer
pp Peak-to-peak
ppm Parts per Million
PPR Pulses per Revolution
PQM Power Quality Meter
ProToPS
TM
Process Tolerant Protection Strategy
PSDBP Power Spectral Density Break Point
psi Pounds Per Square Inch
pt Point
PT Potential Transformer
PWM Pulse Width Modulation
Q1,Q2,Q3,Q4 Output Transistor Designations
rad Radians
RAM Random Access Memory
ref Reference
rev Reverse, Revolution(S)
RFI Radio Frequency Interference
RLBK Rollback
rms Root-mean-squared
Abbreviation Meaning
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