Configured for personnel protection and presence detection in automated machinery, the Honeywell LG1093AA25 (LG1093AA25 Light Curtain) provides direct physical execution of optoelectronic safety monitoring.
Hardware Specifications
Parameter
Specification
Model
LG1093AA25
Brand
Honeywell
Origin
System dependent
Weight
1.95 kg (4.30 lbs)
Dimensions
Standard light curtain profile
Operating Temp
Industrial control environment
Power Consumption
System bus dependent
Core Function
Optoelectronic presence detection
Safety Systems and SIS Characteristics
SIL3 certification: The light curtain architecture is designed to meet stringent safety integrity level requirements, ensuring deterministic response times during obstruction events.
Triple modular redundancy (TMR) 2oo3 architecture: The internal logic processing utilizes a redundant voting structure to confirm beam status and prevent nuisance tripping due to component-level faults.
Galvanic isolation: The input and output circuitry is electrically isolated from the main control bus to prevent electrical noise and power surges from compromising safety signals.
Fail-safe state execution: Upon detection of an obstruction or an internal diagnostic fault, the unit is engineered to transition immediately to a de-energized "safe" state to halt machine operation.
Frequently Asked Questions
Q: Does this unit require periodic beam alignment checks?
A: Yes. Ensure that the transmitter and receiver optics are kept free of debris and that the mounting remains rigid to maintain accurate beam alignment.
Q: Is this device compatible with standard safety PLC inputs?
A: The device provides standardized safety outputs intended for integration with safety PLCs or safety relay modules. Verify that the output switching current matches the requirements of your safety interface.
Field Installation Guidelines
Mounting: Secure the transmitter and receiver pairs to the machine frame using rigid mounting hardware. Ensure the units are perfectly parallel and aligned to avoid false trips caused by vibration or mechanical deflection.
Grounding: Bond the metallic housing of both transmitter and receiver to the cabinet protective earth (PE) bus. A low-impedance ground path is required to maintain EMI immunity and ensure the safety potential of the chassis.
Wiring: Maintain strict separation between safety signal cabling and high-power motor drive cables to prevent electromagnetic interference. Use shielded cable for all safety control lines to ensure signal integrity.
