FS6I/0B-050-59-1F IMO Fork Sensor 50mm Sen., Adj., M8 Plug Exit

FS6I/0B-050-59-1F IMO Fork Sensor 50mm Sen., Adj., M8 Plug Exit

IMO FS6I/0B-050-59-1F is an adjustable infrared photoelectric fork sensor with a 50 mm sensing width, 59 mm detection depth, 0.2 mm minimum object detection, selectable NPN/PNP output, 10 kHz switching frequency and M8 4-pin connection.

SKU: FS6I/0B-050-59-1FAlt SKU: FS6I0B050591FMPN: FS6I/0B-050-59-1F
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Why Choose the IMO FS6I/0B-050-59-1F Fork Sensor?

The IMO FS6I/0B-050-59-1F is a high-speed photoelectric fork sensor designed for accurate detection of small objects, edges and moving materials in industrial automation systems. Its fork-shaped construction integrates the emitter and receiver into one rigid housing, maintaining precise optical alignment and simplifying installation compared with separate through-beam sensors.

This FS6 Series model provides a 50 mm fork width and 59 mm detection depth, with modulated infrared emission and detection of objects as small as 0.2 mm. Sensitivity can be adjusted directly using the integrated +/- push-buttons, while light-on or dark-on switching can also be selected by button.

Operating from 12/24 V DC, the FS6I/0B-050-59-1F provides selectable NPN/PNP digital output, a fast 10 kHz switching frequency and an M8 4-pin plug connection. Its painted aluminium and polyamide/glass construction and IP65 protection make it particularly suitable for high-speed positioning, counting, web monitoring and small-object detection on automated machinery.

Key Advantages

  • 50 mm fork width provides a defined optical sensing path without separate emitter/receiver alignment.
  • Detects objects as small as 0.2 mm for precise automation applications.
  • 10 kHz switching frequency supports high-speed object detection and counting.
  • Simple sensitivity adjustment using integrated +/- push-buttons.
  • Light-on / dark-on operation can be selected using the sensor controls.
  • Selectable NPN/PNP digital output provides flexibility when integrating with PLC and machine-control inputs.
  • 12/24 V DC supply suits standard industrial automation systems.
  • M8 4-pin connector enables convenient sensor wiring and replacement.
  • Metal-based housing provides robust construction for industrial machinery.

Key Features

  • IMO FS6 Series photoelectric fork sensor.
  • 50 mm sensing fork width.
  • 59 mm fork detection depth.
  • Modulated infrared LED emission.
  • 0.2 mm minimum detectable object.
  • Manual sensitivity adjustment by +/- buttons.
  • Selectable light-on / dark-on switching.
  • Selectable NPN/PNP digital output.
  • 10 kHz switching frequency.
  • 12/24 V DC operating voltage.
  • Reverse-polarity power-supply protection.
  • Short-circuit output protection.
  • M8 4-pin plug connection.
  • Painted aluminium and polyamide/glass construction.
  • IP65 protection according to EN 60529.

High-Speed Precision Detection for Automated Machinery

Fork sensors combine an optical emitter and receiver within a single U-shaped housing, creating a precisely aligned sensing beam across the fork opening. When an object passes through this optical path, the sensor changes its output state. This arrangement eliminates the alignment work associated with separate through-beam photoelectric sensors and provides repeatable detection on fast-moving machinery.

With its 50 mm opening, 0.2 mm minimum detectable object size and 10 kHz switching frequency, the IMO FS6I/0B-050-59-1F is particularly useful for detecting small or rapidly moving parts. Adjustable sensitivity and selectable light-on/dark-on operation further simplify commissioning for different materials and machine-control requirements.

Typical Applications

  • High-speed object detection and counting.
  • Edge and position detection on automated machinery.
  • Packaging and labelling equipment.
  • Web, sheet and continuous-material monitoring.
  • Small-component detection on assembly machinery.
  • Conveyor product detection.
  • Feed and positioning systems.
  • Printing, converting and processing machinery.
  • Industrial automation requiring precise through-beam detection.

Technical Specifications

Manufacturer IMO Precision Controls
Series FS6 Series
Model FS6I/0B-050-59-1F
Product type Photoelectric fork sensor
Detection principle Fork / through-beam photoelectric
Emission Modulated infrared LED
Fork width 50 mm
Detection depth 59 mm
Minimum detectable object 0.2 mm
Operating voltage 12/24 V DC
Maximum ripple 10%
No-load supply current 40 mA
Maximum load current 100 mA
Output Digital NPN/PNP
Output mode Light-on / dark-on selectable
Output voltage drop ≤2 V at 100 mA load
Switching frequency 10 kHz
Sensitivity adjustment Manual +/- push-buttons
Ambient-light immunity Up to 10,000 lux
Operating temperature -20 to +60 °C
Storage temperature -30 to +80 °C
Housing material Painted aluminium and polyamide/glass
Electrical connection M8 4-pin plug
Protection rating IP65 according to EN 60529
Power-supply protection Reverse-polarity protected
Output protection Short-circuit protected
HS Code 8541490000
Country of Manufacture France
IP Rating IP65
Output Type NPN, PNP
Sensing Principle Photoelectric - through-beam
Housing Size M8
Connection M8 connector

Frequently Asked Questions

What is the IMO FS6I/0B-050-59-1F?

The FS6I/0B-050-59-1F is an infrared photoelectric fork sensor with a 50 mm fork width, designed for precise object, edge and position detection in industrial automation applications.

What is the sensing width of the FS6I/0B-050-59-1F?

This model has a 50 mm fork width with a detection depth of 59 mm.

How small an object can the FS6I/0B-050-59-1F detect?

The specified minimum detectable object size is 0.2 mm, making the sensor suitable for detecting small components and material edges.

What output does the IMO FS6I/0B-050-59-1F provide?

The sensor provides a selectable NPN/PNP digital output, with light-on or dark-on operation selectable using the sensor controls.

How fast is the FS6I/0B-050-59-1F?

The sensor has a switching frequency of 10 kHz, supporting rapid detection and counting on high-speed automated machinery.

How is the sensitivity adjusted?

Sensitivity is adjusted manually using the integrated +/- push-buttons, allowing the sensor to be configured for the object or material being detected.

What electrical connection does the FS6I/0B-050-59-1F use?

The sensor uses an M8 4-pin plug connection, providing a compact and convenient interface for machine wiring.

What supply voltage and protection rating does the sensor have?

The FS6I/0B-050-59-1F operates from 12/24 V DC and has an IP65 protection rating according to EN 60529.

Trusted by Automation Engineers Worldwide

IMO Precision Controls sensors are used by machine builders, system integrators and automation engineers across industrial applications, providing practical sensing solutions for object detection, positioning, counting and machine-control systems.

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