LM13 magnetic ring encoder system

 LM13 magnetic ring encoder system

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  •  LM13 magnetic ring encoder system

The LM13 features a compact sealed readhead and a magnetised ring of a diameter of 100.5 mm. The readhead can ride at up to 1.5 mm from the ring's surface.


Simple to install, the LM13 features an integral set-up LED on the readhead and wide installation tolerances.


The encoder comes in digital output variants and offers a range of customer selectable interpolation factors which offer resolutions from 1,280 to 327,680 counts per revolution. The LM13 is capable of velocities up to 20,000 revolutions per minute.


Engineered for extreme service, the solid-state LM13 ring 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 ring 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.


The LM13 encoder system brings reliable solutions to tough, hard-working applications including woodworking, stone-cutting, sawing, metalworking, textiles, packaging, plastics processing, automation and assembly systems, laser/flame/water-jet cutting, electronic assembly equipment etc.

All output types (IC and AV)
Pole length 2.25° (approx. 2 mm)
Available resolutions and maximum speed

Resolution

(cpr)

Interpolation factor

Maximum speed

(revolutions per minute)

327,680

2,048

759

191

95

45

23

320,000

2,000

780

195

98

46

24

256,000

1,600

975

244

122

58

30

163,840

1,024

1,521

378

190

91

46

160,000

1,000

1,560

390

195

93

48

128,000

800

1,950

486

244

116

59

81,920

512

3,045

759

293

181

93

80,000

500

3,120

780

390

186

95

64,000

400

3,900

975

486

232

119

51,200

320

4,875

1,218

609

290

149

40,960

256

6,093

1,521

759

360

186

32,000

200

7,800

1,950

975

462

238

25,600

160

4,875

1,218

609

303

149

20,480

128

8,000

3,045

1,521

723

369

16,000

100

7,800

1,950

975

462

238

12,800

80

4,875

1,218

609

303

149

10,240

64

8,000

6,093

3,045

1,449

741

6,400

40

4,875

1,218

609

290

149

5,120

32

8,000

8,000

6,093

2,901

1,485

2,560

16

N/A

8,000

8,000

5,802

2,970

1,280

8

N/A

8,000

8,000

8,000

5,943

Edge separation (μs)

0.12

0.50

1

2

4

Count frequency (kHz)

8333

2000

1000

500

250

Repeatability Better than unit of resolution
Hysteresis < 12 arc sec up to 0.5 mm ride height
Sub divisional error ±14 arc sec for < 0.7 mm ride height
±30 arc sec for 1 mm ride height
LM13IC – Digital output signals, RS422
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
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
 Cable length  max. 50 m
LM13IC – Digital output signals, RS422
Power supply 4.7 V to 7 V – voltage on readhead
Reverse polarity protection
Power supply rise time (for PRG option only) < 1 ms
Power consumption (without any load) < 35 mA
LM13AV – Analogue output signals (1 Vpp)
Power supply 4.7 V to 7 V – voltage on readhead
Reverse polarity protection
Power consumption (without any load) < 50 mA
All output types (IC and AV)
Mass

Readhead (1 m cable, no connector) 79.6 g, Readhead (1 m cable, with connector) 132.4 g, Cable (1 m) 34 g,
Magnetic ring 42 g

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

All output types (IC and AV)
Temperature
Readhead   Operating -10 °C to +80 °C (cable under non-dynamic conditions: -20 °C to +85 °C)
Storage -40 °C to +85 °C
Ring Operating and storage -40 °C to +120 °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 1,280 to 327,680 counts per revolution
  • High speed operation to 20,000 revolutions per minute
  • Excellent dirt immunity
  • Integral set-up LED
  • High reliability from proven non-contact sensing technology
  • Industry standard digital and analogue outputs

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.