E61439 - Encoder IFM - Free user manual and instructions

Product Type	Draw-wire mechanism for encoders
Intended Use	Conversion of linear movement into rotary movement for distance or displacement measurement and position detection
Compatible Encoders	IFM RU3100 series (and others via appropriate coupling)
Wire Material	Stainless steel measuring wire
Maximum Pull-out Length	Not to be exceeded; refer to product data sheet
Installation Orientation	Measuring wire outlet facing downwards to prevent liquid ingress
Transport Lock	Remove only just before mounting
Wire Guidance	Vertical alignment recommended; avoid bending or sharp edges
Mounting Position	Recommended: straight pulling direction; use idler pulley if needed
Non-recommended Position	Wire entry facing upwards; wire outlet rotated >3°
Environmental Protection	Protect from humidity, chemical liquids, extreme temperatures, vibrations, shocks
Care Instructions	Do not oil or grease the measuring wire; avoid squeezing or bending
Safety Precautions	Do not open housing; do not let wire snap uncontrolled; ensure machine is stationary
Personal Injury Risk	Tensioned wire may cause injury; secure wire to measured object
Installation Personnel	Only qualified and authorized personnel
Initial Setup	Disconnect power; ensure machine stands still during installation
Documents	Full technical data and approvals via QR code or www.ifm.com
Manual Language	English (original); translations available on request

Frequently Asked Questions - E61439 IFM

What is the IFM E61439 used for?

The E61439 is a draw-wire mechanism designed for encoders. It converts linear movement into rotary movement for distance or displacement measurement and position detection.

Which encoders are compatible with the E61439?

The manual shows installation examples with the RU3100 encoder. Other encoders may be compatible using appropriate couplings.

How should I install the draw-wire mechanism to avoid damage?

Install with the measuring wire outlet facing downwards to prevent liquid ingress. Remove the transport lock only just before mounting. Ensure the wire is not bent or squeezed and avoid sharp edges.

What safety precautions must be taken during installation?

Disconnect power, ensure the machine is stationary, and do not start the drive during installation. Only qualified personnel should perform installation. Avoid excessive force on the shaft.

Can I oil or grease the measuring wire?

No, do not oil or grease the measuring wire. This could affect performance and cause damage.

What is the maximum pull-out length of the wire?

The manual warns not to draw out the measuring wire beyond the maximum pull-out length. Refer to the product data sheet for exact specifications.

What should I do if the measuring wire is tensioned?

Tensioned wires pose a risk of injury. Secure the wire to the measured object using the provided bracket (ring, thread, eyelet, or hook) and guide it vertically.

Why must the wire outlet face downwards?

Mounting with the wire outlet facing downwards prevents liquids from entering the mechanism, which could cause damage.

Can I mount the draw-wire with the wire entry facing upwards?

No, this is a non-recommended installation position as it risks water ingress and can lead to malfunction.

Where can I find the full technical data for the E61439?

Use the QR code on the unit or packaging, or visit www.ifm.com to access technical data, approvals, and further information.

USER MANUAL E61439 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 view (no text or symbols)

4.2.4 Installation with draw-wire E61439

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

UK

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.

Pure technical line drawing of a mechanical component with concentric circles 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.