# DISTANCE PHOTO

![Product image](https://novapart.co/image/farnell:4769275/)

**URL**: https://novapart.co/products/QS18AB6AFF40Q5/distance-photo
**SKU**: QS18AB6AFF40Q5
**Manufacturer**: BANNER ENGINEERING
**Price**: €145.5900
**Stock**: 10+
**Lead Time**: 53 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4769275/)

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Features 

Compact sensors featuring precise adjustment of cutoff distance and foreground suppression mode 

- Short-range models for precise adjustment of cutoff distance 

- • Exceptional optical performance; 15 mm to 40 mm adjustable range in compact QS18 housing • Foreground suppression models for reliable detection when a fixed background is present and the object color or shape varies 

- • Objects detected to the face of the sensor (no dead zone) • Simple multi-turn screw adjustment of cutoff distance • Enhanced immunity to fluorescent lights • Crosstalk immunity algorithm allows two sensors to be used in close proximity • Visible red emitter WARNING: • Do not use this device for personnel protection • Using this device for personnel protection could result in serious injury or death. • This device does not include the self-checking redundant circuitry necessary to 

- AN allow its use in personnel safety applications. A device failure or malfunction can cause either an energized A. (on) or de-energized (off) output condition. 

- Models Models Supply Voltage Sensing Range Output Type 

- QS18VN6AFF40 NPN QS18VP6AFF40 10 to 30 V DC 15 to 40 mm adjustable range PNP QS18AB6AFF40 Bipolar (1 NPN and 1 PNP) 

## Models 

Only standard 2 m (6.5 ft) cable models are listed. 

- To order 9 m (30 ft) cable models: add suffix “ W/30 ” to the model number (for example, QS18VN6AFF40 W/30 ). 

- • To order 150 mm (6 in) pigtail with a 4-pin M8 models: add suffix “ Q ” to the model number (for example, QS18VN6AFF40Q ); accessory mating cordset required, see " Quick-Disconnect (QD) Cordsets " on page 7. 

- To order 150 mm (6 in) pigtail with a 4-pin M12 models: add suffix “ Q5 ” to the model number (for example, QS18VN6AFF40Q5 ); accessory mating cordset required, see " Quick-Disconnect (QD) Cordsets " on page 7. 

## Overview 

1. Green: Power Indicator 

2. Amber: Light Sensed Indicator (Flashes for Marginal Conditions) 

3. Cutoff Point Adjustment Screw 

The WORLD-BEAM QS18AFF40 Adjustable Field Sensor with Foreground Suppression detects the light reflected from the background. The output changes when the light from the background is blocked. 

**==> picture [70 x 35] intentionally omitted <==**

**----- Start of picture text -----**<br>
2<br>1<br>3<br>**----- End of picture text -----**<br>


In general, if the background is fixed and the color or shape of the objects in the foreground varies, foreground suppression mode will provide reliable detection. A foreground suppression sensor uses the background in the same way a retroreflective sensor would use a reflector. The sensor output changes when an object passes between the sensor and the background. 

The short-range models offer precise cutoff capability for short-range applications. With an adjustable cutoff distance of 15 to 40 mm, thinner objects closer to the background can be detected with even sharper background suppression. 

## Installation Instructions 

## Sensor Orientation 

To ensure reliable detection, orient the sensor as shown in relation to the target to be detected. 

Original Instructions 12-Aug-25 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

p/n: 149289 Rev. G 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

_Optimal Orientation of Target to Sensor_ 

## Wiring 

Cabled wiring diagrams are shown.Quick disconnect wiring diagrams are functionally identical. 

**==> picture [448 x 194] intentionally omitted <==**

**----- Start of picture text -----**<br>
NPN (sinking) outputs PNP (sourcing) outputs<br>Light operate bipolar outputs<br> bu (3) – bn (1) + bn (1) +<br>bn (1) 10-30 V DC+ bu (3) 10–30 V DC– bu (3) 10–30 V DC–<br>bk (4) Load Light operate bk (4) Load Light operate wh (2) Load<br>wh (2) Load Dark operate wh (2) Load Dark operate bk (4) Load<br>4-pin M12 Male 4-pin M8 Male 1. Brown<br>1<br>2 4 2. White<br>2<br>4 3. Blue<br>1 3<br>3 Co 4. Black<br>**----- End of picture text -----**<br>


In dark operate (DO) mode, the output is ON when the target returns less light to the sensor than the configured target and OFF when the sensor detects more light than the configured/taught target. 

In light operate (LO) mode, the output is ON when the target returns the same or more light to the sensor and OFF when the sensor detects less light than the configured/taught target. 

In adjustable field sensing modes, light operate is active when the target is present and dark operate is active when the target is absent. 

page 2 of 8 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Configure the QS18AF with Foreground Suppression (FGS) 

X: Distance to Background 

Y: Minimum Separation Between Object and Background 

Foreground Suppression Mode (also called Background Detection ): The light reflected off the background is detected. The output changes when the light from the background is blocked. In general, if the background is fixed and the color or shape of the objects in the foreground vary, foreground suppression mode will provide reliable detection. A foreground suppression sensor uses the background in the same way a retroreflective sensor would use a reflector. The sensor output will change whenever an object passes between itself and the background. 

To ensure reliable foreground suppression, a minimum separation distance between the object and the background is necessary. See to determine the minimum separation distance. 

**==> picture [168 x 115] intentionally omitted <==**

**----- Start of picture text -----**<br>
Set the cutoff distance in front of the fixed background<br>Object Background<br>Y<br>X<br>Cutoff<br>Distance<br>**----- End of picture text -----**<br>


1. Mount the sensor within 30 mm mm of the fixed background. 

2. 

- Turn the adjustment potentiometer clockwise until it clicks (5 turns). 

3. Turn the adjustment potentiometer counter-clockwise until the yellow indicator turns on . This places the cutoff distance in front of the fixed background. 

4. Place the application's darkest object into the sensor's field of view at the maximum sensor to the object distance and verify that the yellow indicator turns off . The sensor is optimized for detecting thin objects close to the fixed background and is ready for operation. For maximum sensing reliability in applications with variations in background position or color (for example, conveyor belts with flutter), follow these additional steps. 

   - a. Turn the adjustment potentiometer counter-clockwise , counting the revolutions, until the yellow indicator turns on . 

   - b. Turn the adjustment potentiometer clockwise half the number of revolutions from the previous step. This places the cutoff distance midway between the object and the background. The sensor is optimized for reliable detection in applications with thick objects and modest variation in background. 

The sensor is ready for operation. 

## Example QS18AF FGS Configuration 

**==> picture [211 x 216] intentionally omitted <==**

**----- Start of picture text -----**<br>
Foreground Suppression Mode application example<br>X<br>Y<br>**----- End of picture text -----**<br>


1. Object 

2. Background (Conveyor) 

- X: Distance to Background = 30 mm 

- Y: Minimum Separation Between Object and Background > 0.7 mm 

The sensor is positioned above a black conveyor belt at a distance of 30 mm. The objects on the conveyor are boxes of varying colors. According to the Minimum Separation Distance figure in , the box height must be greater than 0.7 mm for reliable detection against a black background. In this application, reliable detection will be achieved when set up according to the procedure outlined in . 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

page 3 of 8 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Output States 

**==> picture [488 x 99] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||
|---|---|---|---|
|Foreground Suppression Mode|
|Object Between Sensor Face and Cutoff|No Object Between Sensor Face and|
|Sensor Model Type|Output|Distance|Fixed Background|
|All Models|Yellow Indicator Light|OFF|ON|
|Black Wire (Pin 4)|OFF|ON|
|Complementary Models|
|White Wire (Pin 2)|ON|OFF|
|Black Wire (Pin 4)|OFF|ON|
|Bipolar Models|
|White Wire (Pin 2)|OFF|ON|

**----- End of picture text -----**<br>


## Specifications 

Supply Voltage 10 V DC to 30 V DC (10% maximum ripple within specified limits) at less than 16 mA, exclusive of load 

Sensing Beam 

Visible red LED, 630 nm 

Supply Protection Circuitry 

Protected against reverse polarity and transient voltages 

Output Configuration 

Solid-state complementary: NPN or PNP (current sinking or sourcing), or bipolar (both sinking and sourcing) depending on model; Rating: 100 mA total output current 

Off-state leakage current: < 50 µA at 30 V dc 

ON-state saturation voltage: < 1.5 V at 10 mA; < 3.0 V at 100 mA 

Protected against false pulse on power-up and continuous overload or short circuit of outputs 

Connections 2 m (6.5 ft) 4-wire PVC cable, 9 m (30 ft) PVC cable, or 4-pin M8 or M12 150 mm (6 in) cable quick-disconnect connector, depending on model 

## Operating Conditions 

Relative Humidity:  95% relative humidity at 50 °C (noncondensing) 

Temperature:  –20 °C to 55 °C (–4 °F to 131 °F) 

Certifications 

Banner Engineering BV Park Lane, Culliganlaan 2F bus 3 1831 Diegem, BELGIUM 

Turck Banner LTD Blenheim House Blenheim Court Wickford, Essex SS11 8YT GREAT BRITAIN 

## Application Notes 

For mirror-like objects, minimize the sensor-to-object mounting distance and tilt the sensor so reflected light is directed away from the sensor when the object is present. 

Construction ABS housing, acrylic lens cover; PVC cable, nickel-plated brass connector, metal adjustment pot 

## Output Response 

2.8 millisecond ON/OFF 

Note: 200-millisecond delay on power-up; outputs do not conduct during this time 

Adjustments Five-turn adjustment screw sets cutoff distance between min. and max. positions clutched at both ends of travel 

Repeatability 

250 µs 

Indicators Two LED indicators on sensor top: Green solid: Power on Amber solid: Light sensed Amber flashing: Marginal sensing condition Environmental Rating IEC IP67; NEMA 6; UL Type 1 

## Required Overcurrent Protection 

WARNING: Electrical connections must be made by qualified personnel in accordance with local and national electrical codes and regulations. 

Overcurrent protection is required to be provided by end product application per the supplied table. 

Overcurrent protection may be provided with external fusing or via Current Limiting, Class 2 Power Supply. Supply wiring leads < 24 AWG shall not be spliced. For additional product support, go 

to www.bannerengineering.com. 

**==> picture [208 x 68] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||
|---|---|---|---|
|Supply|Supply|
|Required Overcurrent|Required Overcurrent|
|Wiring|Wiring|
|Protection (A)|Protection (A)|
|(AWG)|(AWG)|
|20|5.0|26|1.0|
|22|3.0|28|0.8|
|24|2.0|30|0.5|

**----- End of picture text -----**<br>


## FCC Part 15 Class A for Unintentional Radiators 

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. 

(Part 15.21) Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. 

page 4 of 8 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Industry Canada ICES-003(A) 

This device complies with CAN ICES-3 (A)/NMB-3(A). Operation is subject to the following two conditions: 1) This device may not cause harmful interference; and 2) This device must accept any interference received, including interference that may cause undesired operation. 

Cet appareil est conforme à la norme NMB-3(A). Le fonctionnement est soumis aux deux conditions suivantes : (1) ce dispositif ne peut pas occasionner d'interférences, et (2) il doit tolérer toute interférence, y compris celles susceptibles de provoquer un fonctionnement non souhaité du dispositif. 

## Dimensions 

All measurements are listed in millimeters [inches], unless noted otherwise. The measurements provided are subject to change. 

**==> picture [389 x 328] intentionally omitted <==**

**----- Start of picture text -----**<br>
5.5 mm<br>(0.22")<br>7.5 mm<br>(0.30")<br>9.0 mm<br>15.0 mm  21.0 mm  (0.35")<br>(0.83") 5.2 mm<br>(0.59")<br>3.8 mm  (0.20") 3.0 mm<br>(0.15")<br>(0.12")<br>34.5 mm  24.1 mm<br>(1.36") (0.95")<br>12.0 mm<br>(0.47")<br>M2.5<br>M3 Hardware<br>Hardware<br>Included*<br>Included*<br>3.8 mm<br>(0.15") *M3 Hardware for Sidemount<br>13.4 mm    M2.5 Hardware for Mounting<br>(0.53")   to Threaded Inserts<br>  Max. torque 0.6 nm (5 in. lbs)<br>**----- End of picture text -----**<br>


(2) M3 x 0.5 x 20 mm ss screw (2) M3 x 0.5 ss hex nut (2) M3 ss washer 

(2) M2.5 x 0.45 x 5 mm ss screw 

(2) M2.5 ss washer 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

page 5 of 8 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Performance Curves 

**==> picture [403 x 552] intentionally omitted <==**

**----- Start of picture text -----**<br>
Typical Emitter Spot Diameter vs. Distance<br>0 5 10 15 20 25 30 35 40<br>Distance (mm)<br>Minimum Separation Distance Between Object and Background<br>0.0 Object Background<br>White/White<br>-0.5<br>Gray/Gray<br>-1.0<br>Y<br>-1.5<br>X<br>-2.0<br>Cutoff<br>-2.5 Distance<br>Object/Background X: Distance to Background (mm)<br>-3.0<br>0 5 10 15 20 25 30 35 40 45 50<br>Distance (mm)<br>Excess Gain Curve with 15 mm Cutoff (based on 90% White Card)<br>1000<br>100<br>100<br>10<br>10<br>1 1<br>1 10 100 1 10<br>Distance (mm) Distance (mm)<br>Minimum Separation (mm)<br>Excess Gain Excess Gain<br>**----- End of picture text -----**<br>


**==> picture [224 x 151] intentionally omitted <==**

**----- Start of picture text -----**<br>
Typical Emitter Spot Diameter vs. Distance<br>4.5<br>4.0<br>3.5<br>3.0<br>2.5<br>2.0<br>1.5<br>1.0<br>0.5<br>0.0<br>0 5 10 15 20 25 30 35 40<br>Distance (mm)<br>Emitter Spot Diameter (mm)<br>**----- End of picture text -----**<br>


_Minimum Separation Distance Between Object and Background_ 

**==> picture [224 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
Y: Minimum Separation Between Object and Background (mm)<br>**----- End of picture text -----**<br>


_Excess Gain Curve with 15 mm Cutoff (based on 90% White Card)_ 

_Excess Gain Curve with 40 mm Cutoff (based on 90% White Card)_ 

**==> picture [156 x 153] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>10<br>1<br>1 10 100<br>Distance (mm)<br>Excess Gain<br>**----- End of picture text -----**<br>


page 6 of 8 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## Accessories 

## Quick-Disconnect (QD) Cordsets 

Use the M8 cordsets with QS18 with Q suffix; use the M12 cordsets with QS18 with Q5 suffix. 

**==> picture [469 x 437] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||
|---|---|---|---|---|---|---|
|4-Pin Single-Ended Snap-on M8 Female Cordsets|
|Model|Length|Style|Dimensions|Pinout (Female)|
|32 Typ.|
|4|2|
|1 = Brown|
|PKG4-2|2.03 m (6.66 ft)|Straight|PT|3|1|2 = White 3 = Blue|
|ø 9.0|4 = Black|
|4-pin Single-Ended M12 Female Cordsets|
|Model|Length|Dimensions (mm)|Pinout (Female)|
|BC-M12F4-22-1|1 m (3.28 ft)|44 Typ.|_|
|BC-M12F4-22-2|2 m (6.56 ft)|
|BC-M12F4-22-5|5 m (16.4 ft)|
|BC-M12F4-22-8|8 m (26.25 ft)|M12 x 1|2|1 = Brown|
|<r|ø 14.5|1|2 = White|
|BC-M12F4-22-10|10 m (30.81 ft)|3 = Blue|
|Ø5.2 mm|3|4 = Black|
|BC-M12F4-22-15|15 m (49.2 ft)|4|5|5 = Unused|
|BC-M12F4-22-20|20 m (65.61 ft)|
|7 mm|
|BC-M12F4-22-25|25 m (82.02 ft)|
|——a|58 mm|
|BC-M12F4-22-30|30 m (98.42 ft)|
|4-pin Single-Ended M12 Female Right-Angle Cordsets|
|Model|Length|Dimensions (mm)|Pinout (Female)|
|BC-M12F4A-22-1|1 m (3.28 ft)|32 Typ.|
|[1.26"]|
|BC-M12F4A-22-2|2 m (6.56 ft)|
|BC-M12F4A-22-5|5 m (16.4 ft)|
|30 Typ.|
|BC-M12F4A-22-8|8 m (26.25 ft)|[1.18"]|2|
|3|
|BC-M12F4A-22-10|10 m (30.81 ft)|ma}|1 = Brown|
|=|1|@)|2 = White|
|M12 x 1|4|3 = Blue|
|ø 14.5 [0.57"]|sm|4 = Black 5 = Unused|
|Ø5.2 mm|LJ|
|BC-M12F4A-22-15|15 m (49.2 ft)|2|
|7 mm|
|J|58 mm|4|

**----- End of picture text -----**<br>


## Mounting Brackets 

All measurements are listed in millimeters, unless noted otherwise. The measurements provided are subject to change. 

- 19 25 

- SMBQS18A • Wrap-around protection bracket • Die-cast bracket • Base fits 18 mm threaded hole • Metal hex nut, lock washer and grommet included 62 A • Mounting holes specially designed for QS18AF sensors 

Hole size: A = ø 15.3 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

page 7 of 8 

12-Aug-25 

QS18AFF40 Mechanically Adjustable Foreground Suppression Sensor (15-40mm) 

## SMBQS18AF 

- Right-angle mounting bracket 

- • 14-ga. 304 stainless steel 

Hole center spacing: A to B = 20.3 Hole size: A = 4.3 × 9.4, B = ø 4.3 

**==> picture [61 x 46] intentionally omitted <==**

**----- Start of picture text -----**<br>
A 44<br>B<br>15<br>32<br>**----- End of picture text -----**<br>


## Product Support and Maintenance 

## Clean Sensor with Compressed Air Then Isopropyl Alcohol 

Handle the sensor with care during installation and operation. Sensor windows soiled by fingerprints, dust, water, oil, etc. create stray light that may degrade the peak performance of the sensor. 

Blow dust from the sensor using filtered, compressed air. If the sensor is still dirty, gently wipe the sensor with a dry optical cloth. If the dry optical cloth does not remove all residue, use 70% isopropyl alcohol on a clean optical cloth, then dry with a clean dry optical cloth and blow with filtered, compressed air. Do not use any other chemicals for cleaning. 

## Contact Us 

Banner Engineering Corp. | 9714 Tenth Avenue North | Plymouth, MN 55441, USA | Phone: + 1 888 373 6767 

For worldwide locations and local representatives, visit www.bannerengineering.com. 

## Banner Engineering Corp Limited Warranty 

Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product. 

THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE. 

This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE. 

Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp. Any misuse, abuse, or improper application or installation of this product or use of the product for personal protection applications when the product is identified as not intended for such purposes will void the product warranty. Any modifications to this product without prior express approval by Banner Engineering Corp will void the product warranties. All specifications published in this document are subject to change; Banner reserves the right to modify product specifications or update documentation at any time. Specifications and product information in English supersede that which is provided in any other language. For the most recent version of any documentation, refer to: www.bannerengineering.com. 

For patent information, see www.bannerengineering.com/patents. 

page 8 of 8 

© Banner Engineering Corp. All rights reserved. www.bannerengineering.com 

12-Aug-25 



## Links

- [View this product on Novapart](https://novapart.co/products/QS18AB6AFF40Q5/distance-photo)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/banner-engineering/qs18ab6aff40q5/distance-photo/dp/4769275)
---

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