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Multichannel rotary encoder - GEL 27xx

Rotary encoder with up to 8 channels

The multichannel rotary encoder was developed specially for the requirements of the rail vehicle industry. It has been designed to provide independent output signals for different control electronics such as motor speed sensing, anti-skid protection, train control and rolling distance measurement. Depending on the requirements, up to eight output channels can be configured.
The measuring scale is of robust construction to withstand extreme impacts and vibrations. The magnetic sensors are resistant to harsh environmental conditions including dirt, oil, humidity or condensation due to changes in temperature. The encoder contains bearings that ensure maintenance-free, durable operation in extremely harsh operating conditions.
Customized assembly with various cables, protective sleeves and plugs is possible for all types.

Technical information

Properties

  • Max. 8 channels
  • Max. 3 different pulse numbers
  • Voltage or current output
  • Various flange shapes for every vehicle type

Advantages

  • Solution individually tailored to the specific application, as numerous combinations of channels and pulse numbers are possible
  • Thanks to its flexible design, the encoder is not only ideal for new projects, but is also perfectly suited for retrofitting.
  • Maintenance-free, durable operation in extremely harsh ambient conditions due to selected bearings and a magnetic measuring system

Downloads

Downloads

Product Document Languages
GEL 27xx Technical information DE EN CN
Operating instructions* DE/EN CN

Registration required

Field of application

  • Rail vehicle industry
    – Traction monitoring
    – Anti-slip protection
    – Anti-skid protection
    – Motor speed

Dimensional drawings

All dimensions in mm [inch]

Technical data

General

Number of channels:

1 to 8

Phase offset

Standard: 90° electrical others possible (e.g. 120°)

Duty cycle

50% ± 10%

Resolution (number of pulses)

200, 110, 100, 80, 55, 12

Electrical data

Supply voltage UB (reverse polarity protected)

10 to 30 V DC

Current consumption IB per channel (without load)

≤ 30 mA

Output signal (short-circuit-proof)

Square-wave signals

Output signal level high

≥ UB - 1.8 V

Output signal level low

≤ 1.5 V

Output current per channel

≤ 20 mA

Frequency range

0 to 25 kHz

Duty cycle

50% ± 20%

Phase offset

-

Mechanical data

Max. permissible rotational speed

5000 r.p.m.

Shaft material

Stainless steel

Housing material

Coated aluminum

Cable cross section

4 × 0.5 mm2

Weight (without cable, without drive)
GEL 2701
GEL 2710
GEL 2712

1400 g
2000 g
2000 g

Environmental tests

Working and operating temperature

-40 °C to +100 °C

Storage temperature

-40 °C to +105 °C

Degree of protection

IP 67

Dielectric strength

1.5 kV, 50 Hz, 1 min. (EN 50155:2022-06)

Electromagnetic compatibility

Rail vehicles (EN 50121-3-2:2017-11)

Vibration resistance

DIN EN 61373:2011-04 cat. 3

Shock resistance

DIN EN 61373-2011-04 cat. 3

Type test

EN 50155:2022-06
IEC 60571:2012

Atmospheric humidity

100 %

Condensation

permissible

Electrical connection

Cable, connector, protective sleeve

depending on device type, specification upon request