Ø20mm incremental encoder
A20 is a compact, incremental encoder designed for high-precision motion detection in applications with limited space.
• Miniature size (Ø 20 mm)
• Various shaft diameter options
• Several flexible couplings with different mounting options
• Special encoder design for extended temperature ranges
• Round cable version
| Maximum shaft speed | 10 000 RPM |
| Moment of inertia | < 0.4 gcm2 |
| Starting torque | 5 x 10-4 Nm |
| Shaft load | Axial: 3 N Radial (at shaft end): 3 N |
| Vibrations (55 Hz to 2000 Hz) | ≤ 100 m/s2 |
| Shock (6 ms) | ≤ 300 m/s2 |
| Operating temperature | Standard: 0oC – 70oC Extended: -40oC – 100oC |
| Storage temperature | -40oC – 105oC |
| Ingress Protection (EN 60529) | IP50 |
| Mass (without cable) | Standard: < 20 g For extended temperature option with stainless steel: < 30 g |
| Interface | Π TTL |
| System accuracy | ± 100 arc.sec |
| Resolution (positions per turn) | up to 1 048 576 counts per revolution |
| Incremental signals | 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 mark | 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 |
| Supply voltage | + 5 V ± 5 % |
| Current consumption (without load) | max. 100 mA |
| Maximum operating frequency | 12.5 MHz |
| A20X1- X2 – X3 -X4 – X5 – X6/X7 | ||||||
| Type (X1) | Pulse Number per Revolution (X2) | Operating Temperature (X3) | Shaft Diameter (X4) | Cable Length (X5) | Connector Type (X6) | Flexible Coupling (X7) |
| S – solid shaft H – blind hollow shaft |
000001 … 262144 |
N – 0oC – 70oC (standard) T – -40oC – 100oC (extended) |
02M – ⌀ 2 mm 03M – ⌀ 3 mm 04M – ⌀ 4 mm |
R0500 – 500 mm R1000 – 1000 mm R2000 – 2000 mm |
W – without connector B12 – round, 12 pins C9 – round, 9 pins C12 – round, 12 pins D9 – flat, 9 pins D15 – flat, 15 pins |
W – without coupling 1 – flexible coupling version 1 2 – flexible coupling version 2 |
Order code example: A20S-S-262144-N-R0500-D9/W
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