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LR-ZB250CP

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KEYENCE LR-ZB250CP is a PNP distance-based laser sensor with a 35–250 mm detection range, M8 connector and stainless-steel enclosure.
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Technical specifications for LR-ZB250CP

  • Manufacturer:
    KEYENCE
  • Part Number:
    LR-ZB250CP
  • Product Family:
    KEYENCE
  • Product Type:
    Rectangular Distance-Based Laser Sensor
  • Stock:
    1
  • Detection Principle:
    Distance-based laser sensor
  • Housing:
    Rectangular SUS316L stainless steel
  • Output:
    PNP
  • Connection:
    M8 4-pin connector
  • Detectable Distance:
    35 to 250 mm
  • Response Time:
    1.5 / 10 / 50 ms selectable
  • Light Source:
    Red semiconductor laser, 660 nm
  • Laser Class:
    Class 1
  • Supply Voltage:
    10 to 30 VDC
  • Protection:
    IP68 / IP69K / NEMA
  • Weight:
    0.055 kg
  • Estimated shipping dimensions:
    4.31 x 3.97 x 1.96 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Target Setup Installation Signal Validation Product Applications

Features:

  • Distance-based decision: The sensor compares position rather than relying only on return-light strength from the target.
  • Rugged enclosure: Stainless construction and high ingress ratings support demanding machine environments.
  • Selectable response: Multiple response settings allow a balance between speed and signal stability during commissioning.
LR-ZB250CP is used when a controller needs a discrete PNP result based on whether the measured target lies inside the configured distance condition.

Its M8 connector and compact rectangular body make mechanical orientation and cable routing part of the replacement identity.

Application approval still depends on target reflectivity, angle, background and motion even though the sensing principle reduces color sensitivity.

Apter Power can help confirm the KEYENCE LR-ZB250CP Rectangular Distance-Based Laser Sensor, PNP input, target distance, mounting and M8 connection before quotation.
KEYENCE LR-ZB250CP Rectangular Distance-Based Laser Sensor Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Distance window: Teach against the real target and background at the installed angle.
  • Surface range: Include the darkest, brightest and most reflective approved target conditions in validation.
  • Motion effect: Test vibration and target speed with the selected response setting.
  • Background margin: Keep unintended structures outside the decision zone and optical path.
  • Rigid mounting: Prevent bracket deflection from shifting the taught distance during machine acceleration.
  • Connector seal: Use the correct M8 cable and seat it fully to preserve environmental protection.
  • Window care: Maintain a clean optical face without abrasive cleaning damage.
  • Laser safety: Preserve labels and avoid direct viewing into the emission path during setup.
  • PNP compatibility: Confirm controller input common and current path before applying supply power.
  • Response choice: Select the slowest setting that still captures the process event with adequate stability.
  • Controller proof: Compare sensor indication and PLC state through repeated normal and reject cycles.
  • Drift evidence: Record bracket position, taught condition and target samples before replacing a suspected sensor.
  • Object presence: Detects a part at a defined distance despite qualified color changes.
  • Position confirmation: Verifies a component reaches the required location before the next motion.
  • Washdown machinery: Supports exposed sensing points when the connector and installation preserve sealing.
  • Background suppression: Separates the intended target from structures beyond the configured distance decision.
Description
LR-ZB250CP evaluates target distance rather than received-light intensity alone, helping machines distinguish an object against changing color or surface conditions within the qualified setup.

The rectangular stainless-steel body of LR-ZB250CP combines an M8 connection with environmental protection suited to exposed industrial sensing points where washdown or dust ingress must be considered.

Because LR-ZB250CP provides a PNP output, replacement selection must preserve the controller input convention, connector pinout, taught distance and actual target geometry before automatic operation resumes.
Alternative Names
LRZB250CP LR ZB250CP
Technical notes
LR-ZB250CP uses a visible Class 1 laser. Do not stare into the emitting aperture or defeat the installed mounting and guarding. During replacement, isolate motion, match the PNP input circuit, restore the taught distance, and test the least-reflective and most-reflective qualified targets at real speed before authorizing production.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
LR-ZB250CP detects a light sample but misses a dark production part. What should commissioning change first?
Re-teach with representative worst-case targets and verify angle and response setting. Do not release the sensor using only the easiest reflective sample.
A technician replaces LR-ZB250CP with an NPN version that has the same housing. Can the PLC program compensate?
Do not treat it as a direct spare. Output polarity changes the input circuit and fault behavior; use the specified PNP model or complete a controlled electrical redesign.
The output of LR-ZB250CP chatters while the machine vibrates. Is a slower response always the right fix?
First check bracket rigidity, distance margin and target movement. A slower setting may help noise but must still capture the required event at production speed.
After cleaning LR-ZB250CP, sensing distance shifts. What evidence should maintenance inspect?
Check for residue, scratches, bracket movement and connector disturbance, then repeat the taught condition with the qualified target before considering replacement.
An LR-ZB250CP installation must face a shiny angled part. How should acceptance be performed?
Validate the full allowed angle and finish range, including the background, under actual motion. Stop if any combination creates unstable or unintended detection.
The M8 cable fits LR-ZB250CP but the output is absent. What should be verified before changing the sensor?
Confirm cable pinout, supply polarity, PNP input common and connector seating. Mechanical fit of an M8 plug does not prove electrical compatibility.

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