How to resolve an external fault in Leuze electronic Lighting Equipment?
- BBradley FoxAug 29, 2025
If there's an external fault with your Leuze electronic Lighting Equipment, check the connection of the cables and the control signals.

How to resolve an external fault in Leuze electronic Lighting Equipment?
If there's an external fault with your Leuze electronic Lighting Equipment, check the connection of the cables and the control signals.
What to do if reset button actuation duration exceeded on Leuze electronic Lighting Equipment?
If the actuation duration (2.5 min) has been exceeded for the reset button or the cable is short-circuited on your Leuze electronic Lighting Equipment, press the reset button. If the restart is unsuccessful, check the wiring of the reset button.
Why did the operating mode change on my Leuze electronic MLC 500?
If the operating mode has changed on your Leuze electronic Lighting Equipment, check the wiring and restart the sensor.
What to do if alignment is incorrect on Leuze electronic MLC 500?
If the alignment of your Leuze electronic Lighting Equipment is incorrect or the protective field is interrupted, remove any objects obstructing the protective field. Then, align the transmitter and receiver correctly. If you're using blanked objects, ensure they are correctly positioned according to their size and location.
What to do if EDM does not open on Leuze electronic Lighting Equipment?
If the EDM (External Device Monitoring) does not open on your Leuze electronic Lighting Equipment, actuate the start button if available.
What to do if EDM does not close on Leuze electronic Lighting Equipment?
If the EDM (External Device Monitoring) does not close on your Leuze electronic Lighting Equipment, actuate the start button if available.
How to check cross connection between OSSD1 and OSSD2 on Leuze electronic Lighting Equipment?
If there is a cross connection between OSSD1 and OSSD2 in your Leuze electronic Lighting Equipment, check the wiring between them.
What causes overload on OSSD1 in Leuze electronic MLC 500 Lighting Equipment?
If there is an overload on OSSD1 in your Leuze electronic Lighting Equipment, check the wiring or exchange the connected component to reduce the load.
What causes overload on OSSD2 in Leuze electronic MLC 500?
If there is an overload on OSSD2 in your Leuze electronic Lighting Equipment, check the wiring or exchange the connected component to reduce the load.
How to fix short circuit against GND at OSSD1 on Leuze electronic MLC 500 Lighting Equipment?
If there is a short circuit against GND at OSSD1 in your Leuze electronic Lighting Equipment, check the wiring and exchange the cable if applicable.
| Brand | Leuze electronic |
|---|---|
| Model | MLC 500 |
| Category | Lighting Equipment |
| Language | English |
Explains warning symbols, signal words, and other symbols used.
References checklists for machine manufacturer or supplier testing requirements.
Details the correct application and potential improper uses of the safety sensor.
Specifies the qualifications required for personnel handling the safety sensor.
Defines responsibilities of manufacturers and operators for safe operation.
Provides an overview of the MLC family and explains device synchronization.
Details connector types and how to cascade multiple safety light curtains.
Describes LEDs and 7-segment displays for status and fault indication.
Explains the function of the start/restart interlock for safe system operation.
Details the EDM function for monitoring downstream contactors.
Covers changing transmission channels and selecting the operating range.
Describes guarding the point of operation for hand and finger protection.
Explains using safety sensors for access guarding into danger zones.
Details the use of safety light curtains for danger zone guarding.
Covers transmitter/receiver arrangement and calculation of safety distance S.
Details safety distance calculations for orthogonal and parallel approaches.
Addresses minimum distances to reflective surfaces and preventing device interference.
Covers mounting steps, locations, fastening, and accessories like protective screens.
Provides pin assignments for transmitter/receiver and example circuit diagrams.
Details initial power-on, self-test, and basic sensor alignment procedures.
Explains alignment of deflecting mirrors using a laser alignment aid.
Describes the procedure to unlock the start/restart interlock after interruptions.
Covers checks required before initial operation or after modifications.
Outlines periodic testing requirements for competent persons and operators.
Guides users on diagnosing and resolving faults using display and LED information.
Presents key safety-relevant and general system specifications.
Provides physical dimensions, weight, and response time data.
Includes detailed drawings for various mounting accessories.
Explains product part designation structure and lists part numbers.








