Heidenhain - Modular Angle Encoder with Optical Scanning

Angle encoders with graduation on glass disk

Field of application: High-resolution rotary axes with high reproducibility
- Very high number of signal periods
- Small mounting space
- Small interpolation error and low signal noise

Version and mounting	System- accuracy	Signal periods per revolution	Model
Phase-grating graduation on glass disk with hub; screwed onto front of shaft	± 0,9''	180000	ERP 880
Phase-grating graduation on glass disk with hub; screwed onto front of shaft	± 2''	131072	ERP 4080
Phase-grating graduation on glass disk with hub	± 1''	360000	ERP 8080
SUPRADUR phase grating on glass	± 1''	2500	ERO 2000
METALLUR graduation on glass disk with hub; screwed onto front of shaft	± 3''/  ± 2''	9000/ 18000  45000 to 900000	ERO 6080  ERO 6070
Chrome graduation on glass; screwed onto front of shaft	± 10''	4096	ERO 6180

Angle encoders with graduation on steel scale drum

Field of application: Rotary tables, Swivel heads, Accurate, highly dynamic motors
- Large diameter range
- High permissible shaft speeds
- High accuracy
- Various shapes of drum
- Various line counts per diameter
- Protective cover for increased resistance to contamination

Version and mounting	System- accuracy	Signal periods per revolution	Model
Steel scale drum with high accuracy, three-point centering	± 3'' to ± 1,5''	8195 to 44000	ECA 4000  ECA 4000 Vakuum
Scale drum with centering collar; screwed onto front of shaft	± 5'' to ± 2''	12000 to 52000 6000 to 44000 3000 to 13000	ERA 4280C  ERA 4480C  ERA 4880C
Scale drum for increased accuracy; screwed onto front of shaft	± 4'' to ± 1,7''	12000 to 52000	ERA 4282C

Angle encoders with graduation on steel tape

Field of application: Large rotary tables, Telescopes, Special applications
- Very large diameter range
- Full-circle and segment versions
- High variability of diameter
- High accuracy
- Inward or outward scale tape

 

Version and mounting	System accuracy	Signal periods per revolution	Model
Steel scale tape for internal mounting, full circle version; scale tape is tensioned on the outside circumference	± 3,9'' to ± 1,6''	36000 to 90000	ERA 7480C
Steel scale tape for external mounting, full circle version; scale tape is tensioned on the outside circumference	± 4,7'' to ± 1,9''	36000 to 90000	ERA 8480C

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