A58 (Including HE, HME, HE1)

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Photoelectric Rotary Encoder


The A58 series is a photoelectric incremental encoder series that is comprised of 6 iterations – A58M, A58B, A58C, A58C2, A58C3 and A58D. These encoders share the same mechanical and electrical characteristics but differ in mounting options.

Encoders produce up to 108.000 output pulses per revolution and depending on customer demands can have different versions of output signals: 11uApp, 1Vpp, TTL or HTL.

Technical Data

Mechanical Data 
Line number on disc (z)100; 250; 500; 600; 800; 1000; 1024; 1125; 1250; 1500; 2000; 2048; 2500; 3000; 3600; 4000; 5000; 9000; 10800
Pulse number per shaft revolution for A58-FZ x k, where k=1,2,3,4,5,8,10
Maximum shaft speed12000 rpm
Maximum shaft load:
- axial
- radial (at shaft end)
40 N
60 N
Accuracy (T¹ -period of lines on disc in arc. sec)±0.1T¹ arc. sec
Starting torque at 20°C≤0.01 Nm
Rotor moment of inertia< 15 gcm2
Protection (IEC 529)IP64
Maximum weight without cable0.25 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)≤ 1000 m/s²
For other data, please see the attached data sheet