RoLin™ rotary incremental magnetic encoder system

RoLin™ rotary incremental magnetic encoder system

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The RoLinTM component level encoder system consists of an RLM readhead and an MR magnetic ring. The actuator is a periodically magnetised ring with a pole length of 2 mm. Radial or axial reading of the ring is possible.

State of the art position sensing assures highly repeatable position measurement under wide installation tolerances and temperature range.

The electronics inside the readhead enable high interpolation rates up to 13 bits and fault monitoring. The incremental outputs are re-timed to the chosen minimal edge separation time (from 0.12 µs).

The position information is output in incremental quadrature format with the option of a periodic reference mark (every pole) or a magnetised reference mark.

A wide range of resolutions to 753,664 cpr is available.The maximum traverse velocity depends on the chosen resolution and minimum edge separation time, to 4 m/s at 1 µm and to 40 m/s at 10 µm.

All output types (IC and HD)
Pole length 2 mm
Available resolutions and maximum speed
MR047B040B076B00 (radial ring, 76 poles)
MR061C051B090B00 (axial ring, 90 poles)
MR061C051B092B00 (axial ring, 92 poles)
Unidirectional repeatability < 2 μm
Hysteresis < 3 μm up to 0.2 mm ride height
Sub divisional error ±3.5 μm
All output types (IC and HD)
Power supply 4.75 V to 5.5 V – reverse polarity protected
Power consumption (without any load) < 25 mA without line driver; < 30 mA with line driver
Output signals
Digital – TTL-level (A, B, Z)
Saturation voltage hi (I = -4 mA) Vdd - 0.4 V
Saturation voltage lo (I = 4 mA) 0.4 V
Rise and fall time (cc = 50 pF) 60 ns
Digital – RS422 (A+, B+, Z+, A-, B-, Z-)
High level output voltage (IOH = -20 mA) > 2.4 V
Low level output voltage (IOL = 20 mA) < 0.4 V
Rise and fall time (cc = 50 pF) < 10 ns
Hand soldering (for pin variant) Tmax 260 °C; tmax 5 s
ESD susceptibility of all pins (HBM 100 pF, discharge through 1.5 kΩ) 2 kV
All output types (IC and HD)
Readhead housing material ZnAl4Cu1 - zamak 5
Mass RLM readhead 1.4 g (without flex), 1.6 g (with flex); magnetic scale MS05 30 g/m; radial ring MR047 8 g; axial ring MR061 9 g
All output types (IC and HD)
Temperature Operating     -20 °C to +85 °C
Storage         -40 °C to +85 °C
Vibrations (55 Hz to 2000 Hz) 300 m/s2 (IEC 60068-2-6)
Shocks (11 ms) 300 m/s2 (IEC 60068-2-27)


  • Incremental quadrature
  • TTL output signals A, B and index Z
  • Resolutions up to 622,592 cpr (76 pole ring)
  • High speed operation
  • Bi-directional reference mark
  • High reliability from proven non-contact sensing technology
  • Pin / Flex options
  • RoHS compliant

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Delivery time up to: 10 days

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Availability: In stock

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