HEIDENHAIN ERN 680 Incremental Rotary Encoder
The HEIDENHAIN ERN 680 is an incremental rotary encoder with an integral bearing and mounted stator coupling; the encoder shaft connects directly to the measured shaft, giving high dynamic performance and high natural frequencies. Ask AMI about repair, replacement or sourcing for your exact unit; availability and the right replacement path are confirmed before quoting. This page does not claim stock. Previous-generation model: it no longer appears in HEIDENHAIN's current catalog for this product family.
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Own a ERN 680 that has failed? Ask about repair options.
Representative HEIDENHAIN rotary encoder image; not the exact model. Check your unit's ID tag for its configuration.
Key specifications
- Incremental output signals ~ 1 Vpp
- Line counts 1024 to 5000
- Cutoff frequency (–3 dB) ≥ 180 kHz
- Power supply DC 5 V
- Protection IP40
- Mounted stator coupling; the coupling absorbs only the torque from bearing friction during angular acceleration
The full manufacturer spec sheet (PDF) will be added to this page when available. Confirm the full ID number from your encoder's nameplate before ordering; send the nameplate and we will confirm fit.
Pricing and lead times on request. Use Request a Quote and include the model, line count, and interface (current ID tag on your ERN 680).