Linear Encoder LIA - NUMERIK JENA - (Version JPG) - Page n° 9 - PDF Catalogue | Technical Documentation

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Rotary encoder, Encoder, Optical encoder, Incremental encoder, Linear encoder

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	Technical Specifcations
	LIA Series	LIA 20 LIA 21 LIA 22
	*Mechanical Data - Encoder*
	Dimensions of scanning head [mm]	34 x 13.2 x 12.4 34 x 13.2 x 12.4 1 41 x 16 x 12.4
	Weight of scanning head without cable	< 20 g < 20 g < 30 g
	Number of switch sensors	" ¹ ²
	Recommended measuring increments	0.05 um 0.1 um 0.2 um 0.5 um 1.0 um 5.0 um
	Max. travel speed (depending on auxiliary electronic units)	• without interpolation: 600 m/min • with interpolation 100x: 48 m/min
	*Mechanical Data - Scale Tapes*
	Material	steel
	Grating period GP	20 urn standard
	Reference marks	• at 50 mm spacings, starting at center of measuring length • distance coded at 1000 x GP • in the center of measuring length • others on request
	Linear expansion coefficient
	• DOUBLEFLEX scale tape • SINGLEFLEX scale tape	10.5 x 10 _⁶ grd ^-1 at function of material of the mounting surface
	Accuracy classes	*) for GP = 100 um only these accuracy classes
	• DOUBLEFLEX scale tape • SINGLEFLEX scale tape	± 1 um; ± 2 um; ± 3 um; ± 5 um ± 5 um*; others on request
	Repeatability of switching signal	_ 1 0.1 mm
	*Electrical Data*
	Scanning frequency	max. 500 kHz

Output interfaces for counting signals

• voltage output

• square wave output |—

1 V_PP with integrated line driver

RS 422 with internal signal interpolation 5x, 10x, 25x, 50x, 100x in the connector or in the scanning head (only LIA 20)


Output interface for switching signals	TTL	low aktiv	output voltage
• square wave output r"l_\|	TTL	high aktiv	output voltage
	Open collector	low aktiv	output current
	Open collector	high aktiv	max. dissipation
	MOS relays	open contact	max. switching voltage max. continous current max. dissipation
	MOS relays	closed contact
Supply voltage		5 V ± 10%

^Uout low < ^0.4 ^V

^Uout

> 2.4 V

high

¹ out high ^S ¹ ^mA

1 out low - ^-16 ^mA

max

24 mW

^Umax = ³⁰⁰ ^{V 1} max = ^0.1 ^A

^Pmax ⁼ ³⁰⁰ ^mW

Power consumption

• voltage output f\j

• square wave output |—

< 60 mA

< 200 mA

< 70 mA

< 210 mA

< 90 mA

< 230 mA

Cable lengths

Cable permanently connected to the scanning head Permissible total cable lengths with extension cable

up to 3 m (standard length: 0.3 m; 0.5 m; 1.0 m; 2.0 m; 3.0 m) 100 m for 1V_PP und RS 422

Permissible bending radius

occasional flexing constant flexing

8 mm (cable 3.7) 40 mm (cable 3.7)

10 mm (cable 5.1) 50 mm (cable 5.1)

Ambient Conditions

0°C ... +55°C -20°C ... +70°C

< 200 ms^-2

< 400 ms^-293% RH (no condensing)

Operating temperature range Storage temperature range

Vibration (50 Hz ... 2000 Hz)

Shock (11 ms)

Humidity