Safety Working Modes And Safety Functions; Introduction; Safety Working Modes; Safety Working Mode: Both (Default) - Leuze electronic LBK SBV Original Operating Instructions

5 Functioning principles
5.3

Safety working modes and safety functions

5.3.1

Introduction

Each detection field of each sensor can perform the following safety working modes:
Both (default)
l
Always-on access detection
l
Always-on restart prevention
l
Each safety working mode is composed of one or both of the following safety functions:
Function
Access
detection
Restart
prevention
5.3.2

Safety working modes

Via the LBK Designer application, you can select which safety working mode each sensor will employ for
each of its detection fields:
Both (default):
l
The sensor performs the access detection function when it is in normal operation (No alarm
o
status).
o The sensor performs the restart prevention function when it is in alarm status (Alarm status).
Always-on access detection:
l
o The sensor always performs the access detection function (No alarm status + Alarm status).
Always-on restart prevention:
l
o The sensor always performs the restart prevention function (No alarm status + Alarm status).
5.4

Safety working mode: Both (default)

5.4.1 Introduction
This safety working mode is composed of the following safety functions:
access detection
l
restart prevention
l
5.4.2 Safety function: access detection
Access detection allows what follows:
When...
no motion is detected in the detection field
motion is detected in the detection field
5.4.3 Safety function: restart prevention
The restart prevention function remains active and the safety outputs deactivated as long as motion is
detected in the detection field, or, with the static object detection option enabled (see Restart prevention
function: static object detection option on page 43), as long as a static object is detected in the detection
field.
The sensor can detect micro-movements of just a few millimeters, such as breathing movements (with
normal breathing or a short apnea) or the movements necessary for a person to remain in balance in an
Leuze electronic GmbH + Co. KG
The machinery is reverted into a safe status when one or more persons enter the
dangerous area.
The machinery is prevented from restarting if people are in the dangerous area.
Description
Then...
the safety outputs remain active
the safety outputs are deactivated
l
the restart prevention function is activated
l
Sensor LBK SBV 41