Authorised HEIDENHAIN distributors

ACC Systems Ltd

Industrial Automation

HEIDENHAIN ERA Series

Modular Incremental Angle Encoders

 

ERA 4000 series

era4000 

Outline specifications:

  • ERA 4280C grating period 20 μm
  • ERA 4480C grating period 40 μm
  • ERA 4880C grating period 80 μm
Features
  • Steel circumferential-scale drum with centering collar
  • Optional protective cover available for ERA 4480 C
Incremental signals 1Vpp
Reference marks Distance coded
Drum inside diameter (mm) 40 70 80 120 150 180 270 425 5120
Drum outside diameter (mm) 76.75 104.63 127.64 178.55 208.89 254.93 331.31 484.07 560.46
Line count:
ERA 4280C 12000 16384 20000 28000 32768 40000 52000
ERA 4480C 6000 8192 10000 14000 16384 20000 26000 38000 44000
ERA 4880C 3000 4096 5000 7000 8192 10000 13000
System Accuracy:
ERA 4280C ±6.1″ ±4.5″ ±3.7″ ±3.0″ ±2.9″ ±2.9″ ±2.8″
ERA 4480C ±7.2″ ±5.3″ ±4.3″ ±3.5″ ±3.3″ ±3.2″ ±3.0″ ±2.4″ ±2.3″
ERA 4880C ±9.4″ ±6.9″ ±5.6″ ±4.4″ ±4.1″ ±3.8″ ±3.5″
Max mech. speed (min-1) 10000 8500 6250 4500 4250 3250 2500 1800 1500

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  • ERA 4281C grating period 20 μm
  • ERA 4481C grating period 40 μm
Features
  • Steel circumferential scale drum with low weight and low moment of inertia
Incremental signals 1Vpp
Reference marks Distance coded
Drum inside diameter (mm) 26 50 78 127 183 229 280
Drum outside diameter (mm) 52.65 76.75 104.63 153.09 208.89 254.93 305.84
Line count:
ERA 4281C 8192 12000 16384 24000 32768 40000 48000
ERA 4481C 4096 6000 8192 12000 16384 20000 24000
System Accuracy:
ERA 4281C ±8.6″ ±6.1″ ±4.5″ ±3.1″ ±2.9″ ±2.9″ ±2.8″
ERA 4481C ±10.2″ ±7.2″ ±5.3″ ±3.6″ ±3.3″ ±3.2″ ±3.1″
Max mech. speed (min-1) 6000 4000 2000

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  • ERA 4282C grating period 20 μm
Features
  • Steel circumferential scale drum for increased accuracy requirements
Incremental signals 1Vpp
Reference marks Distance coded
Drum inside diameter (mm) 40 70 80 120 150 180 270
Drum outside diameter (mm) 76.75 104.63 127.64 178.55 208.89 254.93 331.31
Line count: 12000 16384 20000 28000 32768 40000 52000
System Accuracy: ±5.1″ ±3.8″ ±3.2″ ±2.5″ ±2.3″ ±2.2″ ±2.0″
Max mech. speed (min-1) 10000 8500 6250 4500 4250 3250 2500

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ERA 700 Series

era700 

Outline specifications:

  • ERA 780C full-circle version
  • ERA 781C segment, scale tape secured with tensioning elements
Incremental signals 1Vpp
Reference marks Distance coded, nominal increment of 1000 grating periods
Scale-slot diameter 318.58mm 458.62mm 573.20mm 1146.10mm
Line count:
ERA 780C full circle 36000 45000 90000
ERA 781C segment
  • 72°: 5000
  • 144°: 10000
  • 50°: 5000
  • 100°: 10000
  • 200°: 20000
  • 160°: 20000
Recommended measuring step 0.0002° 0.0001° 0.00005° 0.00002°
System Accuracy:
ERA 780C full circle ±3.5″ ±3.4″ ±3.2″
ERA 781C segment Dependant on mounting - full details on request
Max mech. speed ≤500min-1

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ERA 800 Series

era800 

Outline specifications:

  • ERA 880C full-circle version
  • ERA 881C segment, scale tape secured with tensioning elements
  • ERA 882C segment, scale tape secured without tensioning elements
Incremental signals 1Vpp
Reference marks Distance coded, nominal increment of 1000 grating periods
Scale-slot diameter 317.99mm 458.04mm 572.63mm
Line count:
ERA 880C full circle 36000 45000
ERA 881C/882C segment
  • 72°: 5000
  • 144°: 10000
  • 50°: 5000
  • 100°: 10000
  • 200°: 20000
  • 160°: 20000
Recommended measuring step 0.0002° 0.0001° 0.00005°
System Accuracy:
ERA 880C full circle ±3.5″ ±3.4″
ERA 881C/882C segment Dependant on mounting - full details on request
Max mech. speed ≤100min-1

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