Position and Speed Sensor MiniCoder GEL 2432

Mini Coder Gel 2432 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Mini Coder Gel 2432 Mini Coder Gel 2432 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Mini Coder Gel 2432

Main Features

  • Sin/cos signal output 1 VPP
  • Square-wave signal output 5V TTL / RS422
  • High resolution by internal interpolation of
    squarewave signal output
  • Interpolation factor selectable ex works

Properties

  • Contactless measurement of rotational motion on target
    wheels with modules 0.5 and 1.0
  • Contactless measurement of linear motion on measuring
    rods with pitches of 1.0 /1.6 or 2.0 mm
  • Useable under the most severe conditions
  • Very high protection class IP 67, sensor side
    chemically resistant
  • Fully encapsulated electronics

Fields of Application

  • Registering the movement of piston rods
    on diecasting machines
  • Contactless measurement of speeds and
    positions on machines and motors

Measuring Principle

  • Integrated MR sensors for contactless scanning
    of a target wheel or rod
  • Sensor signals are internally enhanced
    and temperature-compensated
  • Frequency range 0 to 200 kHz

Output Signals

  • Output as square-wave or sinusoidal signals
  • Power supply is reverse-polarity protected
  • Outputs are short-circuit proof
  • Signal Forms:

    -Two 90° phase-offset square-wave signals with inverse signals 5V TTL/RS422
    -Sin/cos signals 1 VPP with inverse signals
  • Output frequency 0 to 200 kHz
  • Amplitude regulation (only for sin/cos signal output)

Technical data

Supply voltage 5 V DC ± 5%, reverse polarity protected
Measuring frequency 0 to max. 200 kHz
Measuring scale Target wheel / Measuring rod (ferromagnetic)
Width of target wheel min. 2.0 mm
Power consumption unloaded ≤ 0.2 W
Operating temperature range -20 ... +85° C
Ambient temperature range -20 ... +85°C
Storage temperature range -30 ... +100°C
Protection class connector side IP 67 with mounted plug
Protection class sensor side IP 67
EMC EN 61000-6-1 to 4
Insulation strength 500 V
Vibration resistance (IEC 68-2-6) 200 m/s˛
Shock protection (IEC 68-T2-27) 2000 m/s˛
Mass 20 g
Type 2432 T (TTL/RS 422) 2432 K (1 VPP)
Output Signals Two 90° phase offset square-wave
signals and their inverse signals,
short-circuit proof
Sin/Cos signals 1 VPP
and their inverse signals,
short-circuit proof
Offset (static) - ≤ 60 mV
Amplitude tolerance - 0.8 ... 1.1 VPP
Amplitude alignment VA /VB - 0.95 ... 1.05

Dimensions

Dimensional Drawings Gel 2342

Minicoder Gel 2432 Dimension Drawing - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Dimensional Drawings GG 600 (Cable with moulded plug, straight outlet)

Minicoder Gel 2432 Dimensional Drawings GG600 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

CDimensional Drawings GW 600 (Cable with moulded plug, side outlet)

Minicoder Gel 2432 Drawings GW 600 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders


Minicoder Gel 2432 filling material - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Minicoder Gel 2432 assembly drawing  - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Measuring rods


Fields of Application

  • Length measurments
  • Scanning measuring rods with pitch 1, 1.6 or 2 mm


Measuring rods

GEL 2432 series MiniCoders can be used in combination with measuring scales to determine positions of linear movements (e.g. of piston rods). The measuring scale used is a graduated surface structure that can be applied to any desired ferromagnetic machine elements.

This extremely flexible technology makes it possible to use appropriately manufactured piston rods or other machine elements as measuring scales. In the case of piston rods, a special production process is used to fill the applied graduated structure and this is then covered by a wear-resistant hard chrome plating. Other coating materials can also be used as appropriate for the application.

Lenord + Bauer supplies 1.6 mm pitch measuring rods with various diameters.

Measuring rods receive 0.02 mm hard chrome plating. The diameter is accurate to ISO tolerance h6. The surface hardness is ca. 950 ± 50 HV and the surface quality ca. Ra = 0.2 µm.

The MiniCoder must be mounted in such a way that the three collinear pins are aligned in the direction of movement of the measuring rod. Observe the position of the plug key in order to establish the counting direction (see the pin layouts for sin/cos or square-wave signal output on page 6).

1) Distance tolerance applies to sin/cos signals with internal regulation and square-wave signals with interpolation factor 1. Higher interpolation factors have a lower distance tolerance.

Typecodes for measuring rods

Minicoder Gel 2432 typecode - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Target wheels

Minicoder Gel 2432 target wheel - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Minicoder Gel 2432 assembly drawing - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Fields of Application

  • Length measurments
  • Scanning target wheels with module 0.5 or modul 1

Target Wheels

The type of MiniCoder that is used to detect rotational motion forms a unit with its target wheel. The size of the target wheel, and hence the diameter of the unit thus depend directly on its module and number of teeth. The following formulae are used:

z = (da/ m) - 2

da = m • (z+2)

da =external diameter
m =module
z =number of teeth

The MiniCoder must be mounted in such a way that the three collinear pins are aligned in the direction of movement of target wheel. Observe the position of the plug key in order to establish the direction of counting (see the pin layouts for sin/cos or square-wave signal output on page 6).


Customer-specific target wheels

Target wheels can be specially manufactured for individual customers’ requirements. Please send us a construction drawing of the desired target wheel (if possible in the form of a DXF file).

1) Distance tolerance applies to sin/cos signals with internal regulation and square-wave signals with interpolation factor 1. Higher interpolation factors have a lower distance tolerance.

Pin Layouts, EMC information

Minicoder Gel 2432 Pin layouts - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Installation instructions

  • Align the MiniCoder symmetrically with respect to the measuring scale. Asymmetries lead to measuring errors.
  • Avoid mechanical contact between the measuring scale and the 0.1 mm thick protective layer of the sensor system. Scratching this protective layer can cause complete failure of the MiniCoder.
  • Do not damage the surface of the toothing. Do not permit any mechanical components to run on this surface.

EMC information

In order to maintain the equipment’s certificated electromagnetic compatibility (EMC) you should comply with the following instructions:

  • The screening at the ends of cables should be in contact over as large a surface as possible.
  • All unscreened lines should be kept as short as possible.
  • Earth connections should be made as short as possible and should have a large cross-section (low induction earthing strap, ribbon cable).
  • If there are or may be potential differences between the earth connections for machinery and electronic components, then appropriate measures must be adopted to ensure that no equalising current can flow via the cable screening (e.g. install a large cross-section equipotential line, or use cables with two-fold separated screening, with each screen in contact at only one side).
  • Signal lines and control lines should be routed separately and away from power cables.
  • The power supply must conform to installation type class 0 or 1 as per item B.3 in the 1995 EN 61000-4-5 standard.

Type code and accessories

Type code

Minicoder Gel 2432 Typecode - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Interpolation Factor

A new electronic module enables the sin/cos signals generated by the MiniCoder GEL 2432 to be interpolated directly. For example, users can obtain 5000 square-wave signals from a precision 250-tooth target wheel with the selected interpolation factor D = 20 (higher factors are available on request). The interpolation is carried out directly at the sensor. The four-flank evaluation facility in the control electronics can deliver an even higher resolution, in the above example 20,000 steps.

Accessories

GEL 212/213 and GEL 214

External interpolation electronics to convert sinusoidal signals to square-wave signals. If you would like any further information about these products, please ask for our separate technical information sheets, or download them as PDF files from our website: www.lenord.de.



Minicoder Gel 2432 Typecode  - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders GG 600 Cable with moulded plug, straight, length 600 cm



Minicoder Gel 2432 Typecode - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders GW 600 Cable with moulded plug, angled, length 600 cm

Other products relating to GEL 2432 are: GEL 2442, GEL 2443, GEL 2444