Technical data
Technical data - electrical ratings
Voltage supply
  • 4.75...30 VDC
Consumption w/o load
  • ≤300 mA (24 VDC)
Output signals
  • SSI data (Linedriver RS485)
Position resolution
  • 0...20 bit singleturn
Speed resolution
  • ≤18 bit (±20...±2000 rpm)
Code
  • Gray or binary
Code sequence
  • Positiv at CW
Input signals
  • SSI clock
  • Zero position
  • Rotating direction
Additional outputs
  • Square-wave HTL
  • Square-wave TTL (RS422)
  • SinCos
Status indicator
  • Color-LED, system OK output
Interference immunity
  • EN 61000-6-2
Emitted interference
  • EN 61000-6-3
Approval
  • CE
  • UL approval / E217823
Technical data - electrical ratings (square-wave)
Pulses per revolution
  • 1024 … 4096
Phase shift
  • 90 ° ±2°
Duty cycle
  • 45…55 %
Output frequency
  • ≤500 kHz (HTL)
  • ≤2 MHz (TTL)
Output signals
  • A+, A-, B+, B-
Output stages
  • HTL, TTL/RS422
Technical data - electrical ratings (SinCos)
Sinewave cycles per revolution
  • 1024 … 4096
Phase shift
  • 90 ° ±2°
Output frequency
  • ≤500 kHz
Output signals
  • A+, A-, B+, B-
Output stages
  • SinCos 1 Vpp
Technical data - mechanical design
Dimensions (sensor head)
  • 165 x 25 x 93 mm
Outer diameter adapter wheel
  • 350 mm
Over all depth adapter wheel
  • 40 mm
Shaft type
  • ø90...300 mm (through hollow shaft)
Axial tolerance
  • ±8 mm (belt to head)
Radial tolerance
  • 1…3 mm (belt to head)
Shaft diameter tolerance
  • -0,4…0mm
Protection DIN EN 60529
  • IP 67
Operating speed
  • ≤2000 rpm
Material
  • Housing sensing head: aluminium alloy
  • Adapter wheel: stainless steel (1.4104)
  • Magnetic belt: stainless steel (1.4104)
Operating temperature
  • -40...+85 °C
Resistance
  • IEC 60068-2-6
  • Vibration 30 g, 10...2000 Hz
  • IEC 60068-2-27
  • Shock 300 g, 6 ms
Weight approx.
  • 880 g (head)
  • 13 kg (wheel with belt, bore size ø90 mm)
  • 12,5 kg (wheel with belt, bore size ø150 mm)
  • 7 kg (wheel with belt, bore size ø299 mm)
Connection
  • Flange connector M23, 17-pin
"Quasi-absolute"
Initialization of a validate absolute position
  • The MQR350A is a “quasi-absolute” encoder.

    "Quasi-absolute" means that it is an incremental encoder that provides a valid absolute position only after initialization.

    Therefore the belt lock must pass the sensor head twice in the same direction. The zero position will then be set to the middle of the belt lock and the encoder delivers valid absolute position data.


Downloads
Assembly instructions

Accessories
Connectors and cables
Mating connector M23, solder version, 17-pin, CCW

Article no.:11068551

Mating connector M23 in solder version (17-pin, female , CCW) for cable connection to the flange connector M23 (17-pin, male , CW).


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