HEIDENHAIN ERN 180 Incremental Rotary Encoder

Key specifications

• Hollow through shaft
• Rotary encoder with integral bearing and mounted stator coupling
• Hollow through shaft up to Ø 50 mm
• Housing diameter approx. 87 mm
• Output: 1 VPP
• 1000 to 5000 lines

Download historical specifications (2009 catalog, PDF)

Current specifications

May 2026 catalog. Match the full HEIDENHAIN ID, interface and shaft version before selecting a replacement.

• ERN 180, valid for ID 589614-xx: incremental rotary encoder with integral bearing and mounted stator coupling; 1 VPP; DC 5 V ±0.5 V; current consumption without load ≤120 mA.
• Hollow through shaft Ø20, Ø25, Ø38 or Ø50 mm; axial tolerance ±1.5 mm; IP64. Line counts: 1000, 1024, 2048, 2500, 3600 or 5000.
• Speed ≤4000 rpm with shaft diameter over 30 mm, or ≤6000 rpm at 30 mm or less. Maximum operating temperature 100 °C subject to speed conditions; fixed-cable/flange-socket minimum –40 °C, moving cable –10 °C.

Download current ERN 180 specifications (May 2026, PDF)

Historical configuration specifications

From the HEIDENHAIN Rotary Encoders catalog, October 2009. Values are catalog values; confirm your unit's configuration from its ID label.

• ERN 180: 1 VPP, 5 V ±10%, up to 120 mA. System accuracy 1/20 of grating period.
• Shared options in the series (not tied to one unit): hollow through shaft D = 20, 25, 38 or 50 mm; line counts 1 000, 1 024, 2 048, 2 500, 3 600, 5 000. Mounted stator coupling, IP 64, max. speed 4 000 rpm (D over 30 mm) or 6 000 rpm (D 30 mm or less), operating temperature –40 °C to 100 °C.

Documents

• HEIDENHAIN ERN 100 / ECN 113 / ECN 125 spec sheet, 2009 catalog (PDF)
• HEIDENHAIN Rotary Encoders catalog, October 2009 (PDF)

Pricing and lead times on request. Use Request a Quote and include measuring length, interface, and accuracy grade.