Measuring wheel encoders
DBV50 Core

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    • Performance
      Pulses per revolution2,000
      Resolution in pulses/mm10
      Measuring increment (resolution in mm/pulse)0.1
      Measuring step deviation± 18° / pulses per revolution
      Error limits± 4 mm/m, subject to the measuring wheel (wheel + surface)
      Duty cycle≤ 0.5 ± 5 %
      Initialization time< 3 ms
    • Electrical data
      Communication interfaceIncremental
      Communication Interface detailHTL / Push pull
      Supply voltage7 V ... 30 V
      Connection typeCable, 8-wire, with male connector, M12, 8-pin, universal, 0.5 m
      Power consumption max. without load≤ 0.5 W
      Load current max.30 mA
      Maximum output frequency300 kHz
      Reference signal, number1
      Reference signal, position90°, electric, logically gated with A and B
      Reverse polarity protection
      Short-circuit protection of the outputs1)
      MTTFd: mean time to dangerous failure600 years (EN ISO 13849-1) 2)
      • 1) The short-circuit rating is only given if Us and GND are connected correctly.
      • 2) This product is a standard product and does not constitute a safety component as defined in the Machinery Directive. Calculation based on nominal load of components, average ambient temperature 40°C, frequency of use 8760 h/a. All electronic failures are considered hazardous. For more information, see document no. 8015532.
    • Mechanical data
      Measuring wheel circumference200 mm
      Measuring wheel surfaceO-ring NBR70 1)
      Spring arm design63.5 mm spring arm, encoder on mounting side (left), single wheel
      Mass+ 300 g
      Encoder material
      ShaftStainless steel
      Spring arm mechanism material
      Spring elementSpring steel, anti-corrosive
      Measuring wheel, spring armAluminum
      Start up torque0.9 Ncm (at 20 °C)
      Operating torque0.6 Ncm (at 20 °C)
      Maximum operating speed1,500 min⁻¹
      Operating speed3,000 min⁻¹ 2)
      Bearing lifetime2.0 x 10^9 revolutions
      Maximum travel/deflection of spring arm14 mm At 14 N spring travel
      Recommended pretension15 N At 10 mm deflection 3)
      Max. permissible working area for the spring (continuous operation)± 3 mm
      Recommended spring deflection2 mm ... 13 mm
      Service life of spring element> 1.4 million cycles 4)
      Mounting position relative to the measuring objectPreferably from above, from below possible 5)
      • 1) The surface of a measuring wheel is subject to wear. This depends on contact pressure, acceleration behavior in the application, traversing speed, measurement surface, mechanical alignment of the measuring wheel, temperature, and ambient conditions. We recommend you regularly check the condition of the measuring wheel and replace as required.
      • 2) No permanent operation. Decreasing signal quality.
      • 3) When measured from the top of the measuring surface.
      • 4) One cycle corresponds to an upward and downward movement of ± 3 mm from the recommended pretension position.
      • 5) When mounted from below, the encoder weight during spring pretensioning must be taken into account.
    • Ambient data
      EMCAccording to EN 61000-6-2 and EN 61000-6-3 (class A)
      Permissible relative humidity90 % (condensation of the optical scanning not permitted)
      Operating temperature range

      –20 °C ... +85 °C

      –35 °C ... +95 °C (on request)

      Storage temperature range–40 °C ... +100 °C, without package
    • Classifications
      ECl@ss 5.027270501
      ECl@ss 5.1.427270501
      ECl@ss 6.027270590
      ECl@ss 6.227270590
      ECl@ss 7.027270501
      ECl@ss 8.027270501
      ECl@ss 8.127270501
      ECl@ss 9.027270501
      ETIM 5.0EC001486
      ETIM 6.0EC001486
      UNSPSC 16.090141112113

    Technical drawings

    Dimensional drawing 63.5 mm spring arm, encoder on mounting side (left), single wheel
    Proposed fitting
    PIN assignment View of M12 male device connector on encoder
    PIN assignment
    Diagrams Force deflection chart with working range
    Diagrams Signal outputs for electrical interfaces TTL and HTL
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