Headquarters: SIKO GmbH Weihermattenweg 2 79256 Buchenbach Germany Phone+49 7661 394-0

Magnetic sensor LEC100

Incremental, digital or analog interface, very small design

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Profile LEC100:

  • Repeat accuracy max. ±1 μm
  • Max. resolution 0.1 µm (LD output circuit)
  • Reading distance ≤0.2 mm
  • Works with MB100/1 magnetic tape

  • Signal period 1000 μm
  • Output circuit sin/cos or LD
  • Function and status display LEDs

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Mechanical data
FeatureTechnical dataAdditional information
Housingzinc die-cast
Sensor/band reading distance≤0.2 mm
Cable sheathPUR, suitable for drag-chain use 8-core ø4.3-0.4 mm
Cable bending radius5x cable diameter static
10x cable diameter dynamic
Weight<0.03 kg

(without cable); cable 0.028 kg/m

Electrical data
Sin/cos output
FeatureTechnical dataAdditional information
Operating voltage5 V DC ±5 %

reverse polarity protected

Current consumption<50 mA off-load
<100 mA


Status display2 LEDs (yellow/green)
Output signals

sin, /sin, cos, /cos, index, /index

Output voltage1 VPP ±10 %

at 0 ... 70 °C, 120 Ω teminal resistance

Signal period1000 µm
Offset voltageUB/2 ±100 mV

sine/cosine mean to GND (5 V DC)

Phasing90°±1°, ±3° (20 kHz) sin/cos

sin (reference signal)

135° cos (reference signal)
Pulse width of reference signal180°±40°
Real-time requirement

speed-proportional signal output

Type of connection

open cable end

LD output circuit
FeatureTechnical dataAdditional information
Operating voltage5 V DC ±5 % reverse polarity protected
Current consumption<50 mA no load
<120 mA loaded
Status display2 LEDs (yellow/green)
Output circuitLD (RS422)
Output signalsA, /A, B, /B, R, /R
Output signal level high>2.5 V
Output signal level low<0.5 V
Latency1.5 µs
Pulse width of reference signal1, 2, 4 increment(s)
Real-time requirementspeed-proportional signal output
Type of connectionopen cable end
Signal pattern, Sin/Cos output
E: reference voltage 2.5 V
F: 1 VSS ±10%
L: 180° ±40%
M: 90° ±1.0° / ±3° (25 kHz)
X: 1 VSS
Signal pattern, LD output circuit

Hint The logic status of signals A and B is not defined regarding the reference signal RD or R. It may deviate from the signal pattern.

Hint Reference or index signal with 4 increments (360°) signal length is only valid from the 5th counting step onwards. A corresponding delay should be taken into consideration after switching on the operating voltage.

Pulse interval, LD output circuit
System data
FeatureTechnical dataAdditional information
Pole length1 mm
Resolution0.1, 0.2, 0.5, 1, 2, 5, 10 µm LD output circuit
System accuracy±8 µm with MB100/1 accuracy class 10 µm, TU = 20 °C
Repeat accuracy ±1 µm unidirectional
Measuring range
Travel speed≤25 m/s analog
≤25 m/s LD output circuit, see table,referencing speed ≤5 m/s
Travel speed, LD output circuit
  Travel speed Vmax [m/s]
Resolution [µm]0.10.800.400.320.160.080.04
Pulse interval [μs]
Counting frequency [kHz]2500.001250.001000.00500.00250.00125.00
Ambient conditions
FeatureTechnical dataAdditional information
Ambient temperature-40 … 85 °C
Storage temperature-40 … 85 °C
Relative humidity100 % condensation admissible
EMCEN 61326-1 immunity requirement of industry
EN 61000-6-2 class B emission limit
Protection categoryIP60 EN 60529
Shock resistance≤500 m/s2, 11 ms EN 60068-2-27, half-sine, 3 axes (+/-), each 3 pulses
Vibration resistance≤100 m/s2, 10 … 2000 Hz EN 60068-2-6, 3 axes, each 10 cycles
Magnetic sensor LEC100
Pin assignment
Signal Sin/CosSignal LDCable color
Hint for mounting

For systems with reference points on the magnetic tape please take care that sensor and strip are correctly aligned (see picture).

Reference signalR, RD
A, Sensor/tape reading distance≤0.2 mm
B, Lateral offset±0.5 mm
C, Alignment error±3°
D, Longitudinal inclination±1°
E, Lateral inclination±3°

LEC100 Hint for mounting
Symbolic representation

Scope of delivery
  • LEC100
  • Quick Start Guide
Ordering table
Feature Order data Specifications Additional information
Cable length
01.0, 02.0, 03.0 in m
Output circuit
Sin/Cos, 1 VSS
Line Driver
Reference signal
fixed reference (digital)only with output circuit 1Vss
fixed referenceonly with output circuit LD
no information requiredonly with output circuit 1Vss
0.1, 0.2, 0.5, 1, 2, 5, 10 in µm
Pulse interval
no information requiredonly with output circuit 1Vss
0.1, 0.2, 0.25, 0.5, 1.0, 2.0 in µs
Ordering key

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Melanie Augustin

Melanie Augustin
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