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Photoelectric rotary encoder A28 is a small 28mm diameter incremental encoder that can have up to 25.000 output pulses per revolution.
Small size is its primary feature which is a benefit for use in small spaces
Technical Data
| MECHANICAL DATA | |
|---|---|
| Line number on disc (z) | 60; 100; 200; 250; 360; 500; 1000; 1024; 1500; 2000; 2500 |
| Number of output pulses per revolution | Z x k, where k=1,2,3,4,5,8,10 |
| Maximum shaft speed | 6000 rpm |
| Maximum shaft load: - axial - radial (at shaft end) | 5N 10N |
| Accuracy (T1-period of lines on disc in arc. sec) | ±0.1T arc.sec 1 |
| Starting torque at 20°C | ≤ 0.015 Nm |
| Rotor moment of inertia | < 2 gcm² |
| Protection (IEC 529) - for axial cable outlet - for radial cable outlet | IP54 IP64 |
| Maximum weight without cable | 0.045 kg |
| Operating temperature | -10 ... +70°C |
| Storage temperature | -30 ... +80 °C |
| Maximum humidity (non-condensing) | 98% |
| Permissible vibration (55 to 2000 Hz) | < 100 m/s² |
| Permissible shock (11 ms) | < 300 m/s² |
| ELECTRICAL DATA | |
|---|---|
| Supply voltage | +5 V ± 5% |
| Max. supply current (without load) | 120 mA |
| Light source | LED |
| Incremental signals | Differential square - wave U1/U1 and U2/U2. Signal levels at 20 mA load current: - low (logic "0") < 0.5 V - high (logic &guot;1") > 2.4 V |
| Reference signal | 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 | (160 x k) kHz , k-interpolation factor |
| Direction of signals | U2 lags U1 for clockwise rotation (Viewed from shaft side) |
| Maximum rise and fall time | <0.5μs |
| Standard cable length | 0.5m; without connector |
| Maximum cable length | 25m |