Absolute rotary encoder EBM50A

magnetic12-bitmulti-turn

Product
EBM50A — Absolute multi-turn magnetic encoder

Key features

• Magnetic absolute multi-turn encoder
• Multi-turn range: 4096 turns
• Single-turn resolution: 4096 (12 bit)
• Outputs: RS485 (Modbus RTU), CAN (CANopen)
• Protection: IP65
• One pair of precision ball bearings; stainless steel shaft φ8 (front end milling)
• Antimagnetic interference design

Dimensions
Dimension drawing: 尺寸图_SENTOP_EBM50A.jpg

Mechanical specifications

• Protection degree: IP65
• Starting torque: ≤1 mN·m
• Life expectancy: >100,000,000 cycles
• Mass: Approx. 150 g
• Housing: Anodized aluminium alloy
• Shaft: Stainless steel; Shaft load ≤30 N; Shaft diameter: φ8 (front end milling)

Environmental specifications

• Operating temperature range: -40℃ to +85℃
• Storage temperature range: -40℃ to +85℃
• Vibration: 100 m/s², 55Hz–2000Hz (EN 60068-2-6)
• Shock: 500 m/s², 13ms (EN 60068-2-27)
• ESD: Contact discharge ±8 kV, Air discharge ±15 kV (EN61000-4-2)
• EMS: 100 V/m (80MHz–1GHz, 1 kHz 80% AM) (EN61000-4-3)

Electrical specifications (RS485)

• Standard model: EBM50A-S2-W1212B485
• Applied voltage: 9V–30V
• Current consumption: <80 mA
• Single-turn resolution: 4096 (12 bit)
• Linearity tolerance: ±0.3%
• Repeatability: ±1 Lsb (actual accuracy depends on installation)
• Protocol: Modbus RTU (slave); Baud rate: 1200–115200 bps (default 9600); Address: default 1 (settable)
• Insulation resistance: >1000 MΩ (500 V DC); Dielectric strength: 1 min (500 V AC)

Electrical specifications (CAN)

• Standard model: EBM50A-S2-W1212BCAN
• Applied voltage: 10V–30V
• Current consumption: <80 mA
• Single-turn resolution: 4096 (12 bit); Multi-turn: 4096 turns
• Linearity tolerance: ±0.3%
• Repeatability: ±1 Lsb (actual accuracy depends on installation)
• Protocol: CANopen
• Insulation resistance & dielectric strength: same as RS485

Special specifications available

• Custom shaft: length, diameter or special machining (slotting, flats, holes)
• Customized communication protocol available on request

Technical data

• Model: EBM50A
• Type: Absolute multi-turn magnetic encoder
• Resolution: Single-turn 4096 (12 bit); Multi-turn 4096 turns
• Interfaces: RS485 (Modbus RTU), CAN (CANopen)
• Applied voltage: RS485 9V–30V; CAN 10V–30V
• Current consumption: <80 mA
• Linearity: ±0.3%; Repeatability: ±1 Lsb
• Protection: IP65; Operating temperature: -40℃ to +85℃
• Mass: Approx. 150 g; Shaft: Stainless steel φ8