HEIDENHAIN ERN 1085 / 1120 / 1180 / 1185 Rotary Encoders | Legacy Inquiry
This page covers historical HEIDENHAIN ERN 1085, ERN 1120, ERN 1180 and ERN 1185 configuration, service and replacement inquiries. These models are distinct, not interchangeable variants.
- ERN 1085: 1 VPP incremental signals with a Z1 track for sine commutation.
- ERN 1120: TTL incremental interface.
- ERN 1180: 1 VPP incremental interface.
- ERN 1185: 1 VPP incremental signals with a Z1 track for sine commutation.
Send the full encoder ID, line count, shaft and mounting dimensions, cable/connector photos and motor/control model. AMI will confirm compatibility before quoting. No stock or drop-in replacement is implied.
Historical HEIDENHAIN servo-drive encoder catalog (PDF, hosted by MotionUSA; ERN 1085)
Historical HEIDENHAIN rotary encoder catalog (PDF, hosted by FCR Motion; ERN 1120/1180/1185)