Terms and abbreviations used in drive-based safety, 1about this documentation – Lenze E84Dxxxxx User Manual

Page 7

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Lenze · 8400 protec · Drive-based safety · Software Manual · DMS 2.4 EN · 05/2013 · TD05

7

1

About this documentation

1.4

Terms and abbreviations used in drive-based safety

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1.4

Terms and abbreviations used in drive-based safety

Abbreviation

Meaning

24O

24-V voltage supply for non-safe feedback

OFF state

Signal state of the sensors when they are activated or respond

DO

Non-safe feedback output

ON state

Signal state of the sensors in normal operation

F-PLC

Safety PLC

GSE

File with device-specific data for establishing the PROFIBUS communication

GSDML

File with device-specific data for establishing the PROFINET communication

Cat.

Category according to EN 954-1 (valid until 30 November 2009)

Optocoupler supply

Supply of optocouplers to control the driver

OSSD

Output Signal Switching Device, tested signal output

PELV

Protective extra low voltage

PL

Performance Level according to EN ISO 13849-1

PM

P/N switching signal paths

PP

P/P switching signal paths

PS

PROFIsafe

PWM

Pulse width modulation

S bus

Safety bus

SD-In

Safe input (Safe Digital Input)

SD-Out

Safe output (Safe Digital Output)

SELV

Safety extra low voltage

SIA, SIB

Safe input, channel A or channel B

SIL

Safety Integrity Level according to IEC 61508

SO

integrated safety option

Abbreviation

Safety function

AIE

Error acknowledgement (Acknowledge in Error)

AIS

Restart acknowledgement (Acknowledge in Stop)

ES

Safe enable switch (Enable Switch)

OMS

Operation mode selector

SS1

Safe stop 1

SSE

Emergency stop (Safe Stop Emergency)

STO

Safe torque off

Formerly: Safe standstill

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