ERN 1085 by HEIDENHAIN
Miniature incremental rotary encoder with integral bearing and mounted stator coupling with 1Vpp output plus commutation signals and IP 64 protection
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With permanent-magnet three-phase motors, an absolute position value is necessary for electrical commutation before the motor is started. On the one hand this can be determined using absolute rotary encoders, which output additional incremental signals.
On the other hand, HEIDENHAIN produces incremental rotary encoders with an additional commutation track — the Z1-track — which sends one sine and one cosine signal with one signal period per motor-shaft revolution. In this way it is possible to determine the absolute rotor position of the motor before it is started.
Incremental Signals - 1 Vpp
Line count - 512
Commutation signals - One sine and one cosine signal with 1 period per revolution (Z1-track)
Power supply - 5v
Cutoff frequency (-3 db) - >= 100 kHz
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