Issue 07/04

List of Abbreviations

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

MICROMASTER 420

Operating Instructions

6SE6400-5AA00-0BP0

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Image 183
Siemens 420 manual Ppo