Siemens MICROMASTER 420 - Manual (Page 183)

Issue 07/04 List of Abbreviations
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0 183
PPO Parameter process data object
PTC Positive temperature coefficient
PWE Parameter value
PWM Pulse-width modulation
PX Power extension
PZD Process data
QC Quick commissioning
RAM Random-access memory
RCCB Residual current circuit breaker
RCD Residual current device
RFG Ramp function generator
RFI Radio-frequency interference
RPM Revolutions per minute
SCL Scaling
SDP
Status display panel
SLVC Sensorless vector control
STW Control word
STX Start of text
SVM Space vector modulation
TTL Transistor-transistor logic
USS Universal serial interface
VC Vector control
VT Variable torque
ZSW Status word
ZUSW Additional setpoint