Leuze electronic MLC 530 - Functions; Start;Restart Interlock (RES) Function

Functions
Leuze electronic MLC 530 17
4 Functions
An overview of features and functions of the safety sensor can be found in chapter “Device description”
(see chapter 3.1 „Device overview“).
The different functions are grouped into six operating modes (see table 4.1).
Depending on the function required, select the suitable operating mode via corresponding electrical wiring
(see chapter 7 „Electrical connection“).
Table 4.1: Overview of functions and function groups (FG) in the individual operating modes
4.1 Start/restart interlock RES
After accessing the protective field, the start/restart interlock ensures that the safety sensor remains in the
OFF state after the protective field has been cleared. It prevents automatic release of the safety circuits
and automatic start-up of the system, e.g. if the protective field is again clear or if an interruption in the
voltage supply is restored.
In operating modes 1, 2 and 3, which evaluate a contact-based safety circuit or a linkage of electronic
safety-related switching outputs, the internal start/restart interlock is deactivated.
Operating modes
Functions 1 2 3 4 6
Fixed blanking without tolerance

FG1,
FG2
Fixed blanking without tolerance, can be activated/
deactivated during operation

Fixed blanking with 1-beam tolerance

Integration of “contact-based safety circuit”

FG1,
FG2
Integration of “electronic safety-related switching
outputs”

SingleScan

FG1
DoubleScan FG2
MaxiScan

Floating blanking, can be changed to “Fixed
blanking” during operation
FG1
Reduced resolution, can be changed to “Fixed
blanking” during operation
FG1
Combination of Floating/Fixed blanking, can be
changed to “Fixed blanking” during operation
FG1
Timing controlled 2-sensor muting

Partial muting (timing controlled 2-sensor muting)

Start/restart interlock (RES)

Range reduction

Transmission channel changeover

For access guarding, the start/restart interlock function is mandatory. The protective device may
only be operated without start/restart interlock in certain exceptional cases and under certain
conditions acc. to EN ISO 12100.