E61442 - Industrial sensor IFM - Free user manual and instructions

Product Type	Photoelectric Sensor
Measurement Range	0.1 to 10 m
Output Type	PNP/NPN, NO/NC
Supply Voltage	10-30 V DC
Current Consumption	< 50 mA
Response Time	< 1 ms
Enclosure Rating	IP67
Dimensions	50 x 50 x 23 mm
Weight	Approx. 70 g
Housing Material	Stainless steel / PBT
Connection Type	M12 connector, 4-pin
Operating Temperature	-25 to 70 °C
Storage Temperature	-40 to 85 °C
Indication	LED for output status
Maintenance	Clean optical surface with soft cloth
Safety Features	Protected against reverse polarity and short circuit
Spare Parts	Mounting bracket, reflector (if applicable)
Standards Compliance	CE, UL

Frequently Asked Questions - E61442 IFM

How do I install the E61442 sensor?

Mount the sensor using the provided bracket. Ensure the detection zone is clear. Connect the M12 connector to a 10-30 V DC power supply. Adjust sensitivity via the potentiometer if needed.

What is the maximum sensing distance?

The maximum sensing distance is 10 meters for a standard reflector. The actual range depends on the target and environment.

Can I use the sensor in outdoor conditions?

Yes, the sensor has an IP67 rating, making it suitable for outdoor use. Avoid direct exposure to corrosive chemicals.

How do I troubleshoot if the sensor is not detecting?

Check the power supply (10-30 V DC), verify the output wiring (PNP/NPN), clean the lens, and ensure the target is within range. If using a reflector, align it properly.

What is the response time of the sensor?

The response time is less than 1 millisecond, suitable for high-speed applications.

How do I select between light-on and dark-on modes?

Some models have a selector switch or wiring option. Refer to the manual for your specific output configuration.

Is the sensor compatible with PLCs?

Yes, the PNP or NPN output can be directly connected to most PLC digital input modules.

What maintenance is required?

Periodically clean the optical surface with a soft, dry cloth. Check the cable and connector for damage. No internal maintenance is needed.

Can I replace the sensor cable?

The sensor has a fixed cable with an M12 connector. If damaged, replace the entire sensor or use a field-attachable connector.

What is the warranty period for the E61442?

IFM provides a standard warranty of 2 years against manufacturing defects. Contact IFM support for details.

USER MANUAL E61442 IFM

Installation instructions Draw-wire mechanism for encoders

UK

80284578/01 06/2022

Pure technical line drawing of a mechanical component with concentric circles and a vertical rod (no text or symbols)

Contents

1 Preliminary note ....3
2 Safety instructions ....3

2.1 Symbols used ....3

3 Functions and features ....4
4 Installation....4

4.1 Generel structure of the device ....5
4.2 Application examples with encoder RU3100 ....5

4.2.1 Installation with draw-wire E61442, E61443 and E61444 ....5
4.2.2 Installation with draw-wire E61440 6
4.2.3 Installation with draw-wire E61441 6
4.2.4 Installation with draw-wire E61439 7

4.3 Installation of the draw-wire mechanism 8
4.4 Draw-wire mechanism 8

4.4.1 Avoid damage to the wire 9

4.5 Wire guide....10
4.6 Special mounting conditions ....10

4.6.1 Recommended mounting position 10
4.6.2 Non recommended installation position 11

1 Preliminary note

You will find instructions, technical data, approvals and further information using the QR code on the unit / packaging or at www.ifm.com.

2 Safety instructions

- The device described is a subcomponent for integration into a system.

• The manufacturer is responsible for the safety of the system.

• The system manufacturer undertakes to perform a risk assessment and to create a documentation in accordance with legal and normative requirements to be provided to the operator and user of the system. This documentation must contain all necessary information and safety instructions for the operator, the user and, if applicable, for any service personnel authorised by the manufacturer of the system.

• Read this document before setting up the product and keep it during the entire service life.

• The product must be suitable for the corresponding applications and environmental conditions without any restrictions.
• Only use the product for its intended purpose (→ Functions and features).
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property may occur.
• The manufacturer assumes no liability or warranty for any consequences caused by tampering with the product or incorrect use by the operator.
• Installation, electrical connection, set-up, programming, configuration, operation and maintenance of the product must be carried out by personnel qualified and authorised for the respective activity.
• Protect units and cables against damage.

2.1 Symbols used

▶ Instruction

Reaction, result

[...] Designation of keys, buttons or indications

→ Cross-reference

Important note

Non-compliance may result in malfunction or interference.

3 Functions and features

The draw-wire mechanism is installed on an encoder. Via the wire travel, linear movement is converted into rotary movement. The unit is for example used for distance or displacement measurement and for position detection.

4 Installation

This product is a precision measuring device. Therefore it has to be handled with care by trained staff. The following warnings apply to influences outside the limit values indicated in the product data sheet.

▶ Disconnect power.
▶ Ensure that the machine stands still.
▶ Do not start the drive during installation.

▶ Do not hit the shaft; do not use a file or similar tool on the shaft.

Damage to the encoder can be caused by:

• too high forces on the shaft
• humidity and chemical liquids (do not connect any cables oriented upwards)
  • extreme temperatures
  • too high vibrations and shocks
• short circuit or too high an operating voltage
• impact, shock or any other physical forces

4.1 General structure of the device

1: Encoder
2: Coupling
3: Draw-wire mechanism

4.2 Application examples with encoder RU3100

4.2.1 Installation with draw-wire E61442, E61443 and E61444

Technical line drawing of an electric motor assembly showing internal components and exploded view (no text or labels)

4.2.2 Installation with draw-wire E61440

Technical line drawing of a mechanical assembly showing exploded and assembled views (no text or symbols)

4.2.3 Installation with draw-wire E61441

Technical line drawing of a mechanical assembly showing exploded view and assembled views (no text or symbols)

4.2.4 Installation with draw-wire E61439

Technical line drawing of a mechanical assembly showing exploded and assembled views of a motor or pump component (no text or symbols present)

4.3 Installation of the draw-wire mechanism

▶ Install the unit so that any damage to or contamination of the measuring wire is prevented.

▶ Install the unit so that the measuring wire outlet faces downwards.

This prevents the penetration of liquids.

Technical line drawing of a mechanical component with concentric rings and a vertical rod (no text or symbols)

4.4 Draw-wire mechanism

▶ Remove the transport lock of the measuring wire only just before mounting.

When using draw-wire mechanisms, ensure that any danger for people or damage to machines is excluded in case of malfunction or a failure of the sensor.

4.4.1 Avoid damage to the wire

▶ Do not squeeze or bend the measuring wire.
▶ Avoid damage to the measuring wire due to sharp edges.

▶ Only draw out the measuring wire using the bracket intended for this purpose (e.g. ring buckle).

▶ Do not oil or grease the measuring wire.

CAUTION!

Non-intended use of the measuring wire may lead to injuries.

▶ Do not open the housing (prestressing of the measuring wire in the housing).
▶ Do not wrap the measuring wire around unprotected parts of bodies.
▶ Do not let the measuring wire snap or contract into the housing without control.
▶ Do not draw out the measuring wire beyond the maximum pull-out length.
▶ Protect the measuring wire against mechanical damage during mounting.
▶ Protect the wire fixture against unintentional release.

4.5 Wire guide

Tensioned measuring wires may present a risk of injury to the operating personnel.

▶ Fix the measuring wire to the measured object.
▶ Wire fixture via ring, thread, eyelet or hook.
▶ Guide the measuring wire vertically.

For optimum wire guide, mount the wire fixture at the end of the measuring wire so that it can move freely.

4.6 Special mounting conditions

4.6.1 Recommended mounting position

▶ If there is a risk of ice formation on the measuring wire, use an idler pulley to break the ice.
▶ Ensure a straight pulling direction of the measuring wire. If necessary, use an idler pulley.

4.6.2 Non recommended installation position

▶ Do not mount the wire entry facing upwards in order to avoid ingress of water.
▶ A wire outlet rotated by >3° will lead to malfunction of the wire rope and significant wear on the wire entry after a short period of operation.