
A rotary encoder is an electro-mechanical device that converts the angular position or motion of a shaft or axle into an electrical signal. These signals are used to determine position, direction, speed, or acceleration in automation systems.
Baumer Group, based in Switzerland, is a leading manufacturer of sensors and encoders known for precision, durability, and innovation in industrial applications.
📂 Types of Baumer Rotary Encoders
Baumer offers a comprehensive portfolio of rotary encoders, classified as follows:
1. Incremental Encoders
Output pulses relative to motion.
No absolute position memory after power loss.
Common models: EIL580, ITD, HOG, EIL510
Applications: Motor speed feedback, conveyors, wind turbines.
2. Absolute Encoders
Provide a unique position value for each shaft angle.
Retain position even after power loss.
Two types:
Single-turn: Measures within one rotation.
Multi-turn: Measures across multiple rotations using mechanical or electronic counters.
Common models: GEMAC, GMI5, MAGRES, HMG10, AMG10
Applications: Robotics, CNC machines, elevators, packaging machinery.
3. Magnetic Encoders
Use magnetic fields for position detection.
Robust in harsh environments (dust, oil, temperature extremes).
Example: MAGRES EAM series
4. Optical Encoders
Use light and photo-detectors for high-resolution feedback.
Suitable for applications needing precision and cleanliness.
5. Heavy-Duty Encoders
Designed for rugged environments (shock, vibration, dust, moisture).
High protection (IP67/IP69K) and high shaft loads.
Models: HOG series (e.g., HOG 10), HMG 10
Applications: Steel plants, wind turbines, mining, cranes.
📐 Baumer Encoder Model Naming Example
Model: EIL580P-SC10.5KN
EIL580: Series name
P: Pulse output type
SC10.5: Shaft diameter and flange type
KN: Electrical connection type (e.g., cable or connector)
🔍 Key Specifications to Consider
Parameter Options / Range
Resolution Up to 65, 536 pulses/rev (incremental); 18–30 bit (absolute)
Shaft type Solid shaft, hollow shaft, blind hollow shaft
Interfaces HTL, TTL (Incremental); SSI, BiSS, CANopen, Profibus, EtherCAT, IO-Link (Absolute)
Protection class Up to IP67/IP69K
Housing materials Aluminum, stainless steel, coated metal
Speed Up to 12, 000 RPM
Temperature range -40°C to +100°C (depending on model)
🔧 Connectivity & Interfaces
Industrial Protocols supported:
SSI (Synchronous Serial Interface)
BiSS-C (open-source digital interface)
CANopen / Profibus / EtherCAT / Profinet (for integration with PLCs)
IO-Link for smart sensor integration
🧰 Applications of Baumer Rotary Encoders
Automation systems
Robotics and AGVs
Electric motors and servo drives
CNC machines
Printing presses
Elevators and escalators
Steel, wind, mining industries (heavy-duty models)
✅ Advantages of Baumer Encoders
Swiss precision and reliability
Wide product range for every application type
Excellent environmental protection (IP67/IP69K)
Industry 4.0 ready (via IO-Link and fieldbus options)
High shock and vibration resistance
Easy integration with mechanical and electrical systems
📄 Documents Available
Technical datasheets
Wiring diagrams
CAD models (STEP/IGES)
Software tools for configuration (for some models)
Keywords
plcs iolink
100c depending
magnetic fields
multiple rotations
power loss
comprehensive portfolio
leading manufacturer
electromechanical device
unique position
precision durability
electrical signal
angular position
rotary encoder
rotary encoders classified
electrical systems documents
applications needing precision
position detection robust
absolute position memory
agvs electric motors
connector key specifications
highresolution feedback suitable
rotation multiturn measures
types singleturn measures
industrial applications types