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RMB28 rotary magnetic module

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RMB28 rotary magnetic module

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The RMB28 encoder module is designed for direct integration to high volume OEM applications. The low cost 28 mm square PCB can also be provided with a connector for easy installation.

 

The encoder module consists of a magnetic actuator and a separate sensor board. Rotation of the magnetic actuator is sensed by a custom encoder chip mounted on the sensor board, and processed to give the required output format. Output signals are provided in industry standard absolute, incremental, analogue or linear formats.

The RMB28 can be used in a wide range of applications including motor control and industrial automation.

RMB28MD – Sine/Cosine + Absolute binary synchro-serial (SSI) + Incremental
Resolution 8 bit + 64 ppr (256 cpr) + one sine/ cosine period per revolution
SSI output code Natural binary
Data output Serial data
Data input Clock
Incremental outputs A, B, Z
Sin/Cos outputs Signal amplitude: 1.1 V ± 0.2 Vpp
Signal offset Vdd/2  ± 5 mV
Maximum speed 60,000 rpm
Accuracy ±0.7° 
Hysteresis 0.45°
RMB28IB – Incremental, Open Collector, 24 V
Output signals A, B, Z
Accuracy Typ. ±0.5°
Hysteresis 0.18°
Resolution 80 to 2,048 pulses per revolution (320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 counts per revolution)
Maximum speed 30,000 rpm
RMB28IE – Incremental, Open Collector, 5 V
Output signals A, B, Z
Accuracy Typ. ±0.5°
Hysteresis 0.18°
Resolution 80 to 2,048 pulses per revolution (320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 counts per revolution)
Maximum speed 30,000 rpm
RMB28IC – Incremental, RS422, 5 V
Output signals A, B, Z, A-, B-, Z- (RS422)
Accuracy Typ. ±0.5°
Hysteresis 0.18°
Resolution 80 to 2,048 pulses per revolution (320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 counts per revolution)
Maximum speed 30,000 rpm
RMB28SC – Absolute binary synchro-serial (SSI), RS422, 5 V
SSI output code Natural binary
Data output Serial data (RS422)
Data input Clock (RS422)
Accuracy Typ. ±0.5°
Hysteresis 0.18°
Resolution 320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 counts per revolution
Maximum speed 30,000 rpm
RMB28SI – Absolute binary synchro-serial (SSI) + Incremental, RS422, 5 V
SSI output code Natural binary
Data output Serial data (RS422)
Data input Clock (RS422)
Incremental outputs A, B, Z, A-, B-, Z- (RS422)
Accuracy Typ. ±0.5°
Hysteresis 0.18°
Resolution 80 to 2,048 pulses per revolution (320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 counts per revolution)
Maximum speed 30,000 rpm
RMB28Vx – Linear voltage output
Resolution of DAC 10 bit
Nonlinearity 1 %
Maximum speed 30,000 rpm
Output type and electrical variant
φFS 360° 180° 90° 45°
CW VA VB VC VD
CCW VE VF VG VH
RMB28AC – Analogue sinusoidal
Resolution One sine/cosine wave per revolution
Sin/Cos outputs

Signal amplitude: 1.1 V ± 0.2 V

Signal offset:  Vdd/2 ±5 mV
Maximum speed 60,000 rpm
RMB28Ux – Commutation + incremental output
Maximum speed 30,000 rpm
Accuracy ±0.5°
Incremental outputs A, B, Z, A-, B-, Z- (RS422)
Incremental resolution 256, 320, 400, 500, 512, 800, 1,000, 1,024, 1,600, 2,000, 2,048, 4,096, 8,192 cpr
Commutation outputs U, V, W (±24 mA output drive)
Number of poles for commutation outputs 2, 4, 6, 8, 10, 12, 14, 16
RMB28Wx – Complementary commutation + incremental output
Maximum speed 30,000 rpm
Accuracy ±0.5°
Incremental outputs A, B, Z, A-, B-, Z- (RS422)
Incremental resolution 256, 512, 1,024, 2,048, 4,096 cpr
Commutation outputs U, V, W, U-, V-, W- (RS422)
Number of poles for commutation outputs 2, 4, 6, 8, 10, 12, 14, 16
RMB28MD – Sine/Cosine + Absolute binary synchro-serial (SSI) + Incremental
Power supply Vdd = 5 V ± 5 %
Current consumption 13 mA – incremental and SSI (not loaded)
RMB28IB – Incremental, Open Collector, 24 V
Power supply Vdd = 8 V to 26 V
Current consumption 50 mA 
Maximum output load 20 mA
RMB28IE – Incremental, Open Collector, 5 V
Power supply Vdd = 5 V ± 5 %
Current consumption 35 mA  (not loaded)
Maximum output load 20 mA
RMB28IC – Incremental, RS422, 5 V
Power supply Vdd = 5 V ± 5 %
Current consumption Max. 35 mA
RMB28SC – Absolute binary synchro-serial (SSI), RS422, 5 V
Power supply Vdd = 5 V ± 5%
Current consumption Max. 35 mA
RMB28SI – Absolute binary synchro-serial (SSI) + Incremental, RS422, 5 V
Power supply Vdd = 5 V ± 5 %
Current consumption Max. 35 mA
RMB28Vx – Linear voltage output
Power supply Vdd = 5 V ± 5 %
Current consumption Typ. 26 mA
Output voltage 0 V to Vdd
Output loading Max. 2 mA
RMB28AC – Analogue sinusoidal
Power supply Vdd = 5 V ± 5 %
Current consumption 13 mA
RMB28Ux – Commutation + incremental output
Power supply Vdd = 5 V ± 10 %
Current consumption 30 mA (not loaded)
RMB28Wx – Complementary commutation + incremental output
Power supply Vdd = 5 V ± 10 %
Current consumption 30 mA (not loaded)
RMB28MD – Sine/Cosine + Absolute binary synchro-serial (SSI) + Incremental
Operating and storage temperature -40 °C to +125 °C
RMB28IB – Incremental, Open Collector, 24 V
Operating and storage temperature

-40 °C to +125 °C
RMB28IE – Incremental, Open Collector, 5 V
Operating and storage temperature

-40 °C to +125 °C
RMB28IC – Incremental, RS422, 5 V
Operating and storage temperature

-40 °C to +125 °C

-40 °C to +105 °C (with connector)
RMB28SC – Absolute binary synchro-serial (SSI), RS422, 5 V
Operating and storage temperature

-40 °C to +125 °C

-40 °C to +105 °C (with connector)
RMB28SI – Absolute binary synchro-serial (SSI) + Incremental, RS422, 5 V
Operating and storage temperature

-40 °C to +125 °C

-40 °C to +105 °C (with connector)
RMB28Vx – Linear voltage output
Operating and storage temperature -40 °C to +125 °C
RMB28AC – Analogue sinusoidal
Operating temperature -40 °C to +125 °C
RMB28Ux – Commutation + incremental output
Operating temperature -40 °C to +125 °C
-40 °C to +105 °C for option 12 (with connector)
RMM28Wx – Complementary commutation + incremental output
Operating temperature -40 °C to +125 °C
-40 °C to +105 °C for option 12 (with connector)

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Features

  • 28 mm square module
  • Low cost for OEM integration
  • 24 V and 5 V power supply versions
  • High speed operation to 60,000 rpm
  • Absolute - to 13 bit resolution (8,192 counts per revolution)
  • Industry standard absolute, incremental, analogue and linear output formats
  • Accuracy to ±0.5°
  • RoHS compliant (lead free)

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Lead time up to: 10 working days

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