Electronica Mechatronic Systems: Magnetic Rotary Encoders

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Product Description:

MDB20 magnetic rotary encoder module has a precision sensor having an integrated Hall element for scanning a permanent Dipole magnet. The Sensor itself generates a constant amplitude Sine and Cosine voltages that is used for angle calculations. These Sine and Cosine signals are further interpolated to get the Incremental or Absolute signals with resolutions up to 14 bits per rotation.

MDB20 module is a 20mm PCB assembly which can be used in any small designs with ease of installation.

Salient Features

20mm Circular PCB assembly module
Operates on 5V power supply
Variety of outputs supported like Analog Sin-Cos output, Incremental RS422, Absolute SSI and BiSS-C protocol
Supports up to 14 bits (16384 positions) per rotation- Absolute and Incremental output
Accuracy +/- 0.5°
High Speed operation up to 20000 rpm at finest resolution
3600 CPR also available to give angular resolutions easier for mathematical calculations.

Installation Drawings:

Technical Specifications:

Specifications	Details
Power Supply	+5V DC (±5%)
Current consumption	50mA to 90mA
Output	AS - 2Vpp each signal AC - 0.5Vpp each signal & RS422
Maximum RPM	20000 to 120000 RPM
Operating Temperature	-40°C to +125°C
Storage Temperature	-40°C to +125°C
Accuracy	±5°

Available models:

MDB20AS - Analog single ended Sine Cosine output with a single sine-cosine cycle per rotation.
MDB20AC - Analog complementary Sine Cosine output with a single sine-cosine cycle per rotation.
MDB20IR - Incremental RS422 A, B and Z output with up to 16384 counts per rotation (CPR)
MDB20SB - Absolute output on Synchronous Serial interface (SSI) with Binary data up to 13 Bits per rotation.
MDB20SG - Absolute output on Synchronous Serial interface (SSI) with Grey coded data up to 13 Bits per rotation.
MDB20BC - Absolute output on BiSS-C data up to 14 Bits per rotation