A90H Incremental Angle Encoder
A90H Angle Encoder Drawing

Ø90mm incremental encoder

A90H

Optical 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
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 < 0.6×10-4 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 ∫ 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) 80 mA 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 at Up =± 5V
– high (logic “1”) ≥ 2.4 V at Up =±5V
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 at Up =± 5V
– high (logic “1”) > 2.4 V at Up =±5V
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 shaft side) + B lags + A in clockwise rotation (viewed from shaft side) U2 lags with U1 in clockwise rotation (viewed from shaft 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

Downloads

Product Catalog
Encoder Selection Guide 2021
A90H Angle Encoder Datasheet
A90H Incremental Angle Encoder 2D Drawing
A90H Incremental Angle Encoder 3D Drawing

Order code

A90H – X1 -X2 -X3 -X4 – X5 -X6 -X7/X8

Output Signal Version (X1) Pulse Number per Revolution (X2) Reference Signal (X3) Diameter of Shaft Hole (X4) Mounting Type (X5) Cable or Connector Outlet (X6) Cable Length (X7) Connector Type (X5)
A
AV
F		 18000
…
1800000*
*only F signal version for >18000 pulses		 S – one per revolution
K – 36 per revolution, distance coded		 20 – 20mm
22 – 22mm		 P – clamp
H – screw		 S – version S (cable outlet)
C – version C (connector outlet)		 AR01 – 1m
AR02 – 2m
AR03 – 3m
…		 W – without connector
B12 – round, 12 pins
C9 – round, 9 pins
C12 – round, 12 pins
D9 – flat, 9 pins
D15 – flat, 15 pins
RS10 – round, 10 pins
ONC – round, 10 pins

ORDER EXAMPLES: 

  1. A90H-A-18000-K-20-P-S-AR01/W

Order form

    Check the "Order code" tab in the product page to see how to know your order code.