LM13 linear magnetic encoder system with DPI resolution

LM13 linear magnetic encoder system with DPI resolution

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The LM13 is a contactless high-speed linear magnetic encoder designed for DPI applications.

 

The system features a compact sealed readhead that rides at up to 1.5 mm from the self-adhesive magnetic strip scale, which brings up to 100 m travel.

 

Simple to install, the LM13 features an integral set-up LED on the readhead, wide installation tolerances and an applicator tool for the adhesive-backed magnetic scale. A bidirectional reference is provided that can be actuated either by a preset mark integrated within the scale or by adding a reference sticker on top of the scale with the help of a self aligning installation tool.

 

The encoder comes in digital output variants and offers a range of customer selectable resolutions from 25,600 dpi to 100 dpi.

 

Engineered for extreme service, the solid-state LM13 linear encoder operates from -10 °C to +80 °C, has water-proof sealing to IP68 and is highly resistant to shock, vibrations and pressure. The robust magnetic scale is also resistant to a range of chemicals commonly found in industry. The non-contact, frictionless design eliminates wear while reducing hysteresis giving precision at high speeds and accelerations.

 

For applications which demand that the MS scale can be removed easily please consider TRS track system.

All output types (IC and AV)
Maximum measuring length of MS scale 50 m (100 m special order)
Pole length 2.032 mm
Available resolutions 100, 200, 400, 500, 800, 1,000, 1,250, 1,600, 2,000, 2,500, 3,200, 4,000, 5,000, 6,250, 6,400, 10,000, 12,500, 12,800, 20,000, 25,000, 25,600 dpi
Maximum speed

 

For analogue voltage output: 25 m/s

For digital outputs:

Resolution

(dpi)

Interpolation factor

Maximum speed

(m/s)

25,600

2,048

4.11

1.03

0.52

0.25

0.13

25,000

2,000

4.23

1.06

0.53

0.25

0.13

20,000

1,600

5.28

1.32

0.66

0.31

0.16

12,800

1,024

8.24

2.05

1.03

0.49

0.25

12,500

1,000

8.45

2.11

1.06

0.50

0.26

10,000

800

10.57

2.63

1.32

0.63

0.32

6,400

512

16.50

4.11

1.59

0.98

0.50

6,250

500

16.91

4.23

2.11

1.01

0.52

5,000

400

21.13

5.28

2.63

1.26

0.64

4,000

320

25.00

6.60

3.30

1.57

0.81

3,200

256

25.00

8.24

4.11

1.95

1.01

2,500

200

25.00

10.57

5.28

2.50

1.29

2,000

160

25.00

6.60

3.30

1.64

0.81

1,600

128

25.00

16.50

8.24

3.92

2.00

1,250

100

25.00

10.57

5.28

2.50

1.29

1,000

80

25.00

6.60

3.30

1.64

0.81

800

64

25.00

25.00

16.50

7.85

4.02

500

40

25.00

6.60

3.30

1.57

0.81

400

32

25.00

25.00

25.00

15.72

8.05

200

16

N/A

25.00

25.00

25.00

16.09

100

8

N/A

25.00

25.00

25.00

25.00

Edge separation (μs)

0.12

0.50

1

2

4

Count frequency (kHz)

8333

2000

1000

500

250

Precision class ±20 µm/m and ±40 µm/m
Linear expansion coefficient of MS scale ~ 17 × 10-6/K
Hysteresis < 3 µm up to 0.5 mm ride height
Repeatability Better than unit of resolution
Sub divisional error ±3.5 µm for < 0.7 mm ride height
±7.5 µm for 1 mm ride height
LM13IC – Digital output signals
Output signals 3 square-wave signals A, B, Z and their inverted signals A-, B-, Z-
Reference signal 1 or more square-wave pulse Z and its inverted pulse Z-
Signal level Differential line driver to EIA standard RS422:
UH ≥ 2.5 V at -IH = 20 mA
UL ≤ 0.5 V at IL = 20 mA
Permissible load Z0 ≥ 100 Ω between associated outputs
IL ≤ 20 mA max. load per output
Capacitive load ≤ 1000 pF
Outputs are protected against short circuit to 0 V and to +5 V
Alarm High impedance on output lines A, B, A-, B-
Switching time (10 to 90 %) t+, t- < 30 ns (with 1 m cable and recommended input circuit)
Cable length max. 100 m (please consider voltage drop over cable)
LM13AV – Analogue output signals (1 Vpp)
Output signals V1, V2, V0
Sine / cosine signals
Amplitude (with 120 Ω termination) 0.6 Vpp to 1.2 Vpp
Phase shift 90° ± 0.5°
Reference signal
Amplitude (with 120 Ω termination) 0.8 Vpp to 1.2 Vpp
Position 45°
Width 22.5°
Termination Z0 = 120 Ω between associated outputs
All output types (IC and AV)
Voltage drop over cable ~ 13 mV/m – without load
~ 54 mV/m – with 120 Ω load
Cable Ø4.2±0.2 mm, PUR high flexible cable, drag-chain compatible, double-shielded
8 × 0.05 mm2; durability: 20 million cycles at 20 mm bend radius
LM13IC – Digital output signals
Power supply 4.7 V to 7 V – voltage on readhead
Reverse polarity protection
Power supply rise time < 1 ms (for PRG option only)
Power consumption < 35 mA
LM13AV – Analogue output signals (1 Vpp)
Power supply 4.7 V to 7 V – voltage on readhead
Reverse polarity protection
Power consumption < 50 mA
All output types (IC and AV)
Mass Readhead (1 m cable, no connector) 80 g, Cable (1 m) 34 g
Magnetic scale (1 m) 60 g, Cover foil (1 m) 3.5 g
All output types (IC and AV)
Temperature Operating   -10 °C to +80 °C (cable under non-dynamic conditions: -20 °C to +85 °C)
Storage       -40 °C to +85 °C
Environmental sealing IP68 (according to IEC 60529)
EMC Immunity

IEC 61000-6-2 (particularly: ESD: IEC 61000-4-2; EM fields: IEC 61000-4-3; Burst: IEC 61000-4-4; Surge: IEC 61000-4-5; Conducted disturbances: IEC 61000-4-6; Power frequency magnet fields: IEC 61000-4-8; Pulse magnetic fields: IEC 61000-4-9)

EMC Interference IEC 61000-6-4 (for industrial, scientific and medical equipment: IEC 55011)
Vibrations (55 Hz to 2000 Hz) 300 m/s2 (IEC 60068-2-6)
Shocks (11 ms) 300 m/s2 (IEC 60068-2-27)

Features

  • Compact readhead
  • Resolutions from 25,600 dpi to 100 dpi
  • Stick-on reference mark
  • High speed operation
  • Excellent dirt immunity
  • Integral set-up LED
  • Axis lengths of up to 100 m
  • High reliability from proven non-contact sensing technology
  • Industry standard digital output options
  • TRS track system compatible
  • Distance coded reference mark compatible

Buy products by choosing the specifications

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Delivery time up to: 10 days

Total price:

$13.67

Availability: In stock

More than 10 pcs or need technical assistance? Contact for quote.