A90H

Photoelectric angle encoder A90H is a high end incremental encoder that produces up to 1.800.000 output pulses per revolution. It has hollow shaft, integrated stator coupling and the accuracy of up to ±5 arc. sec. and is available in two different mounting types – coupling via shaft collar or via central screw.



Mechanical Data

Number of output pulses per revolution 18000-1800000 ppr
Line number on disc (z) 18000
Reference signal

- standard: 1 per shaft revolution
- distance coded: 36 per shaft revolution
Permissible mech. speed ≤ 3000 rpm
Max. operating speed 600 to 1000 rpm
Accuracy grades ± 5.0 arc. sec
Permissible shaft runout

- axial: 0.02 mm
- radial: ± 0.02 mm
Starting torque at 20°C ≤ 0.08 Nm
Rotor moment of inertia < 0.6x10-4 kgm2
Protection (IEC 529) IP64
Maximum weight without cable 1.2 kg
Operating temperature 0...+70°C
Storage temperature -30...+85°C
Maximum humidity (non-condensing) 98%
Permissible vibration (55 to 2000 Hz) ≤ 100 m/s²
Permissible shock (11 ms) ≤ 300m/s²
   

Electrical Data

Version A90H-A ∫ 11 µApp A90H-AV ∫ 1 Vpp A90H-F Π TTL
Supply voltage + 5 V ± 5 % + 5 V ± 5 % + 5 V ± 5 %
Max. supply current (without load) 80mA 120 mA 150 mA
Light source LED LED LED
Incremental signals

Two sinusoidal I1 and I2
Amplitude at 1 kΩ load:
- I1 = 7 - 16 µA
- I2 = 7 - 16 µA

Differential sine +A / -A and +B / -B
Amplitude at 120 kΩ load:
- A = 0.6 - 1.2 V
- B = 0.6 - 1.2 V

Differential square-wave U1 / U1 and U2 / U2. Signal levels at 20 mA load current:
- low (logic "0") ≤ 0.5 V
- high (logic "1") ≥ 2.4 V

 

Reference signal

One quasi-triangular I0 peek per revolution. Signal magnitude at 1 kW load:
- I0 = 2 - 8 µA (usable component)

One quasi-triangular +R and its complementary -R per revolution. Signals magnitude at 120 W load:
- R = 0.2 - 0.8 V (usable component)

One differential square-wave U0 / U0 per revolution. Signal levels at 20 mA load current:
- low (logic "0") < 0.5 V
- high (logic "1") > 2.4 V

Maximum operating frequency

(-3 dB) ≥ 160 kHz

(-3 dB) ≥ 180 kHz

160-2500 kHz (depends on interpolation factor)
Direction of signals I2 lags I1 for clockwise rotation (viewed from encoder mounting side) + B lags + A in clockwise rotation (viewed from encoder mounting side) U2 lags with U1 in clockwise rotation (viewed from encoder mounting side)
Maximum rise and fall time - - < 0.2 μs
Standard cable length 1 m; without connector 1 m; without connector 1 m; without connector
Maximum cable length 5 m 25 m 25 m

Accessories

Drawings

Mounting Type H (Screw)

 

Mounting Type P (Clamp)

 

Mounting Dimensions

Typical Applications

           
       
           
           

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