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GEO24

Product catalog summary

Description
The GEO24 is a reliable and cost-effective optical shaft encoder with bearings, designed for easy integration into applications. It features a line driver (HTL) and provides two square-wave signals, A and B, for counting and direction information. The encoder's resolution is determined by the number of pulses per revolution (PPR), and it connects via a 4-pole shielded sensor cable with radial or axial output options.

Features

Optical scanning principle
Compact design with a 24 mm diameter
Mini encoder with a 4 mm shaft diameter
360 pulses per revolution
Supply voltage range: 8-24 VDC with reverse polarity protection
Maximum output current per channel: 20 mA
Two-channel line driver output (channels A and B)
Radial or axial cable output
Operating temperature range: -20 °C to +85 °C
Compliant with EU Directive 2011/65/EU (RoHS)

Recommended Operating Conditions

Supply voltage: 8-24 VDC
Supply current: 8-50 mA (no load)
Count frequency: 30 kHz
Operating temperature: -20 to 85 °C
Humidity exposure: 90% RH (non-condensing)

Mechanical Notes

Max. allowable axial shaft play: 0.1 mm
Max. allowable radial shaft play: 0.02 mm
Mounting screw size: 3 x M3x6mm
Pitch circle diameter: 18.0 ±0.1 mm
Shielded cable with tinned ends: 4 x 0.14 mm
Total weight: ~27 g
Moment of inertia of the hub with the code wheel: 13.0 ±1.0 gcm²
Protection grade: IP54
Max. mechanical speed: 5,000 rpm

Electrical Interface

Pulses per Revolution (PPR): Number of bar and window pairs per revolution
One Cycle (C): 360 electrical degrees, one period of the signal
Pulse Width (P): Nominally 180 ºe
State Width (S): 90 ºe per state, 4 states per cycle
Phase (φ): 90 ºe between channel A and B
Position Error (ΔQ): Angular difference between actual and indicated position

Ordering Information
Ordering code example: GEO 24 I – 2 – 0360 – 24 – G – S – 2.2 – X, where parameters specify resolution, supply voltage, shaft diameter, cable length, and type.

Important Notice
The guarantee is voided by misuse, accident, modification, unsuitable environments, or operation outside specified conditions. PWB encoders GmbH reserves the right to make changes to products and datasheets at any time.

Catalog excerpts

Data Sheet GEO24 www.pwb-encoders.com precision works better Mini Encoder High Resolution PWB encoders GmbH Am Goldberg 2 D-99817 Eisenach Germany Phone: +49 3691 72580-0 [email protected] www.pwb-encoders.com PWB encoders GmbH Am Goldberg 2 D-99817 Eisenach Germany [email protected] / www.pwb-encoders.com

Open the catalog to page 1

Data Sheet GEO24 www.pwb-encoders.com precision works better Description The GEO24 is a reliable, cost-effective optical shaft encoder with bearings that can be quickly and easily integrated into an application. The encoder has a line driver (HTL) and provides two square-wave signals A and B. for counting and direction information. The amplitude of the signals depends on the selected power supply. The resolution of the encoder is determined by the number of pulses per revolution (PPR). Contact is made via a 4-pole shielded sensor cable; the cable output can be radial or axial. optical scanning...

Open the catalog to page 2

Data Sheet GEO24 www.pwb-encoders.com precision works better Recommended operating conditions Electrical Notes Parameter Supply voltage Supply current Count frequency Operating temperature Humidity exposure A, A, B, B, I, I Channel High level output voltage High level output current Low level output voltage Low level output current Propagation time Rise time Fall time Mechanical Notes Parameter Max. allowable axial shaft play of motor Max. allowable radial shaft play of motor Mounting screw size Pitch circle diameter Shilded cable, tinned ends Total weight Moment of inertia of the hub with the...

Open the catalog to page 3

Data Sheet GEO24 www.pwb-encoders.com precision works better Mechanic performance: radial version PWB encoders GmbH Am Goldberg 2 D-99817 Eisenach Germany [email protected] / www.pwb-encoders.com

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Data Sheet GEO24 www.pwb-encoders.com precision works better Mechanic performance: axial version IMPORTANT NOTICE The guarantee will be voided by misuse, accident, modification, unsuitable physical or operating environment, operation in other than the specified operating environment, or failure caused by a product for which PWB encoders GmbH is not responsible. PWB encoders GmbH reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services also datasheets at any time. PWB encoders GmbH Am Goldberg 2 D-99817 Eisenach Germany [email protected]...

Open the catalog to page 5

Data Sheet GEO24 www.pwb-encoders.com precision works better Electrical interface Amplitude Pulses per Revolution (PPR): The number of bar and window pairs or increments per revolution of the code wheel. One Cycle (C): 360 electrical degrees (°e), one period of the signal, caused by one pair of bar and window. Pulse Width (P): The number of electrical degrees that an output is high during one cycle. This value is nominally 180 ºe. State Width (S): The number of electrical degrees between a transition in the output of channel A and the neighbouring transition in the output of channel B. There...

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Data Sheet GEO24 www.pwb-encoders.com precision works better Ordering information Ordering code: Cable Type axial radial PWB encoders GmbH RESTRICTED THIS DOCUMENT AND ANY ASSOCIATED DATA CONTAIN RESTRICTED INFORMATION THAT IS PROPERTY OF PWB encoders GmbH AND MAY NOT BE DISCLOSED OR DUPLICATED FOR OTHERS EXCEPT AS AUTHORIZED BY PWB encoders GmbH INFORMATION CONTAINED IN THIS PUBLICATION MAY BE SUPERSEDED BY UPDATES. IT IS YOUR RESPONSIBILITY TO ENSURE THAT YOUR APPLICATION MEETS WITH YOUR SPECIFICATIONS. PWB encoders GmbH Am Goldberg 2 D-99817 Eisenach Germany [email protected] / www.pwb-encoders....

Open the catalog to page 7

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