Leuze electronic RSL 420P - Monitoring of Field Pair Changeover; Reference Contour Monitoring; Field Pair Monitoring; Signaling Functions

Functions
Leuze electronic GmbH + Co. KG RSL 420P 43
5.8 Monitoring of field pair changeover
The Changeover order function determines the permissible field pair changeovers, e.g. if field pair A1.3
must be changed over to field pair A2.5. If the Changeover order function is active, the safety-related
switching signals (OSSDs) switch off in the following cases:
• the control initiates an impermissible field pair changeover.
• the field pair to which the system is changed over has been deactivated.
Activating the function
Ä The Changeover order is defined using the configuration and diagnostics software (see chapter 9.5
"Defining permissible field pair changeovers").
5.9 Reference contour monitoring
The reference contour monitoring function prevents unintentional misalignment and deliberate manipulation
of the safety sensor. If a protective field contains an area with reference contour, the safety sensor not only
monitors interruptions of the protective field, it also monitors the concurrence of the measured area contour
with the set reference contour. The distance between the protective field and the reference must not ex-
ceed 100mm. If the measurement values of the area contour deviate from the defined reference contour,
i.e., if no object is detected in the area with reference contour (200m from the protective field), the safety
sensor switches off and the safety-related switching outputs (OSSDs) switch to off.
Activation of the function
Ä Activate the Reference contour monitoring function together with the definition of the protective field
boundaries using the configuration and diagnostics software (see chapter 9.4.4 "Creating and configur-
ing protective/warning field pairs").
5.10 Field pair monitoring
The Field pair monitoring function is used to set the monitoring mode for the selected field pair.
The Standby request monitoring mode is used to switch off field pair monitoring and the safety-related
switching signals. This is advisable when parking vehicles, for example.
Activation of the function
Ä Activate field pair monitoring in the configuration and diagnostics software (see chapter 9.4.5 "Configur-
ing field pair monitoring").
5.11 Signaling functions
The device and monitoring functions of the safety sensor deliver indication signals for the following function
groups:
• Protective functions, e.g.
• Protective field violated
• Warning field violated
• Field pair changeover active
• Device functions
• Error messages
• Warnings
• Diagnosis
For an overview of all logic and electrical signals of the safety sensor, see chapter 16.4 "PROFIsafe status
profile".