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HEIDENHAIN ERA 4880 Modular Angle Encoder With Optical Scanning

HEIDENHAIN ERA 4880 Modular Angle Encoder With Optical Scanning

BRAND : HEIDENHAIN

Scanning head

AK ERA 4280 graduation period 20 µm

AK ERA 4480 graduation period 40 µm

AK ERA 4880 graduation period 80 µm

Interface

1 VPP

Cutoff frequency –3 dB

? 350 kHz

Electrical connection

Cable 1 m with M23 coupling (12-pin)

Cable length

? 150 m (w...

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Description

Description

Details

Scanning head	AK ERA 4280 graduation period 20 µm AK ERA 4480 graduation period 40 µm AK ERA 4880 graduation period 80 µm
Interface	1 VPP
Cutoff frequency –3 dB	? 350 kHz
Electrical connection	Cable 1 m with M23 coupling (12-pin)
Cable length	? 150 m (with HEIDENHAIN cable)
Voltage supply	DC 5 V ±0.5 V
Current consumption	< 100 mA (without load)
Vibration 55 to 2000 Hz Shock 6 ms	? 200 m/s2 (EN 60 068-2-6) ? 1000 m/s2 (EN 60 068-2-27)
Operating temperature	–10 °C to 80 °C
Mass Scanning head	? 20 g; scanning head for protective cover: ? 35 g (each without cable)

Scale drum		TTR ERA 4200 C graduation period 20 µm TTR ERA 4400 C graduation period 40 µm TTR ERA 4800 C graduation period 80 µm
Measuring standard Coefficient of expansion		Steel drum ?therm ? 10.4 · 10–6 K–1
Signal periods/Interpolation error per signal period1)	ERA 4200	12 000/±1.1”	16 384/±0.8”	20 000/±0.7”	28 000/±0.5”	32 768/±0.4”	40 000/±0.4”	52 000/±0.3”	–	–
	ERA 4400	6000/±2.2”	8192/±1.6”	10 000/±1.3”	14 000/±1.0”	16 384/±0.8”	20 000/±0.7”	26 000/±0.5”	38 000/±0.4”	44 000/±0.3”
	ERA 4800	3000/±4.4”	4096/±3.2”	5000/±2.6”	7000/±1.9”	8192/±1.6”	10 000/±1.3”	13 000/±1.0”	–	–
Accuracy of graduation		±5”	±3.7”	±3”	±2.5”				±2”
Reference marks		Distance-coded or one
Drum inside diameter*		40 mm	70 mm	80 mm	120 mm	150 mm	180 mm	270 mm	425 mm	512 mm
Drum outside diameter*		76.75 mm	104.63 mm	127.64 mm	178.55 mm	208.89 mm	254.93 mm	331.31 mm	484.07 mm	560.46 mm
Mech. permissible speed		10 000 rpm	8500 rpm	6250 rpm	4500 rpm	4250 rpm	3250 rpm	2500 rpm	1800 rpm	1500 rpm
Moment of inertia		0.27 · 10-3 kgm2	0.81 · 10-3 kgm2	1.9 · 10-3 kgm2	7.1 · 10-3 kgm2	12 · 10-3 kgm2	28 · 10-3 kgm2	59 · 10-3 kgm2	195 · 10-3 kgm2	258 · 10-3 kgm2
Permissible axial movement		? ±0.5 mm (scale drum relative to the scanning head)
Protection* EN 60 529		Complete encoder in mounted condition:
Without protective cover		IP00
With protective cover2) and compressed air		IP40	IP40	IP40	IP40	IP40	IP40	IP40	–
Mass	Scale drum	? 0.28 kg	? 0.41 kg	? 0.68 kg	? 1.2 kg	? 1.5 kg	? 2.3 kg	? 2.6 kg	? 3.8 kg	? 3.6 kg
Mass	Protective cover	? 0.07 kg	? 0.1 kg	? 0.12 kg	? 0.17 kg	? 0.22 kg	? 0.26 kg	? 0.35 kg	–
		* Please select when ordering 1) Interpolation error within one signal period and the accuracy of the graduation together result in the encoder-specific error; for additional error from mounting and bearing of the measured shaft, see Measuring accuracy 2) Possible only with ERA 4480; please order protective cover separately