MSI-F Series Magnetostrictive Linear Position Sensor with SSI Output

Flexible, high-accuracy absolute non-contact magnetostrictive position sensor for stroke lengths from 900 up to 20 000 mm.

Position measurement is performed using ring-type position magnets moving along the waveguide without mechanical contact, ensuring wear-free operation and long service life.

The sensor flange is made of high-grade stainless steel, providing excellent durability and suitability for harsh industrial environments.

The MSI-F supports sensor lengths of up to 20 meters. Thanks to the flexible waveguide design, the sensor can be supplied in compact packaging (900 × 900 × 100 mm), allowing safe transportation regardless of the measuring length.

Price on request

CONFIGURATOR
CONTACT US

Design Features

  • Flexible waveguide design
  • Absolute linear measurement (output signals proportional to magnet displacement)
  • LED status indicator for sensor diagnostics
  • Durable non-contact sensing technology
  • High accuracy: resolution up to 1 µm
  • Measuring length from 900 to 20 000 mm in 1 mm increments
  • Linearity < 0.01%
  • Repeatability < 0.001%
  • PTFE-coated waveguide

Configurator

MSI-F

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S

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MSI-F Series Magnetostrictive Linear Position Sensor with SSI Output, order code:

Scope of delivery

THE SCOPE OF SUPPLY INCLUDES:

Linear position sensor

Certificate of Conformity

Manual

Warranty card

Mating connectors and magnets for the sensor must be ordered separately!

Product ordering code

TECHNICAL REQUIREMENTS FOR ORDER PLACEMENT

1

2

3

4

5

6

7

8

9

10

11

MSI-F

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S

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0

5

0

0

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T

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D70

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S

1

B

2

1

0

0

1

Series:

MSI-F - flexible

2

Flange Type:

M – M18 × 1.5, rod Ø10 mm

S – 3/4”-16 UNF, rod Ø10 mm

3

Measuring Range:

0900...20000 mm, 5 mm step

Other lengths available on request

4

Zero Point:

T – 50 mm (for lengths < 8000 mm)

T2 – 130 mm (for lengths ≥ 8000 mm)

5

Connection:

D70 – M16 (7-pin) male connector

S32 – M16 (8-pin) male connector

D84 – M12 (8-pin) male connector

R02 – PVC cable without connector, 2 m; option: R01...R20 (1...20 m)

H02 – PUR cable without connector, 2 m; option: H01...H20 (1...20 m)

T02 – PTFE cable without connector, 2 m; option: T01...T20 (1...20 m)

S02 – Silicone cable without connector, 2 m; option: S01...S20 (1...20 m)

W02 – Moisture-resistant cable without connector, 2 m; option: W01...W20 (1...20 m)

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Output Signal:

S - SSI

7

Parallel code length:

1 – 25 bits

2 – 24 bits

3 – 26 bits

8

Coding:

B – Binary

G – Gray code

9

Resolution:

  mm

μ

1 - 0,005

2 - 0,01

3 - 0,05

4 - 0,1

5 - 0,02

6 - 0,002

7 - 0,04

8 - 0,001

 5

 10

 50

 100

 20

 2

 40

 1

10

Version:

1 – Standard

11

Options:

00 – Forward measuring direction, asynchronous mode

01 – Reverse measuring direction, asynchronous mode

02 – Forward measuring direction, synchronous mode

05 – Forward measuring direction, with 26-bit parallel code length:

25 bits = alarm;

26 bits = parity check

16 – Forward measuring direction, synchronous mode, internal linearization

Technical data

OUTPUT PARAMETERS

Measured quantity

Position

Operating range, L

900 — 20000 mm, 1 mm step

Movement speed

Any

Update rate

0.5 ms up to 1200 mm; 1.0 ms up to 2400 mm; 2.0 ms up to 3800 mm;

3.0 ms up to 7600 mm; 6.0 ms up to 16800 mm; 7.0 ms up to 20000 mm

Status diagnostics

LEDs next to the connector

INTERFACE

Digital Interface

RS 422

Data Transfer Protocol

SSI – Synchronous Serial Interface

Data format: Binary coding or Gray code (24...26 bits)

Number of magnet

1

Max cable length

Cable length, m: 

Baud rate, Mbit/s: 

<3

 1000

<50

<400

<100

<300

For stable operation, it is recommended to use a cable no longer than 20 meters with a data transmission rate not exceeding 500 kBaud.

POSITION MEASUREMENT ACCURACY

Linearity deviation

< ± 0.01 % F.S. (minimum ± 40 µm)

Repeatability

< ± 0.001 % F.S. (minimum ± 2.5 µm)

OPERATING CONDITIONS

Рабочая температура

-40 °C…+75 °C

Номинальное давление

350 bar, 600 bar peak (optional 800 bar)

Точка росы, влажность

90 % rel. humidity, no condensation

Класс защиты

IP67, IP68 at cable outletat cable outlet

MATERIALS

Sensor electronics housing

Anodized aluminum

Rod

Fluoroplastic / Teflon / PTFE

Flange

Stainless steel 08Х18Н10 / AISI 304

MOUNTING

Mounting position

Any. Maximum bending radius of the flexible rod: 250 mm.

Flange parameters

Flange bolt M18 x 1.5 or 3/4" -16 UNF-3A, nut M18

Position magnet mounting

Spacer and screws made of non-magnetic material

ELECTRICAL CONNECTION

Operating voltage

+12/24 VDC (-10% / +20%)

Reverse polarity protection

up to –30 V DC

Overvoltage protection

up to 36 V DC

Current consumption

50…140 mA (depending on sensor length)

Insulation resistance

500 V DC (between sensor housing and 0 V DC)

STANDARDS, EMC TESTS

Shock test

100 g, single shock according to IEC 60068-2-7

Vibration test

15 g / 10–2000 Hz according to IEC 60068-2-6

EMC Tests

GOST R IEC 61326-1-2014

Connector wiring: cable

WIRE

PIN

FUNCTION

D70

S32

Black

1

5

Data (-)

White

2

2

Data (+)

Yellow

3

1

Clock (+)

Green

4

3

Clock (-)

Red

5

7

+24 VDC (-15 / +20 %)

Blue

6

6

0 VDC (Power supply)

Connector wiring: D70

D70 CONNECTOR PIN ASSIGNMENT

PIN

FUNCTION

M16 male

(view from sensor side)

1

Data (-)

2

Data (+)

3

Clock (+)

4

Clock (-)

5

+24 VDC (-15 / +20 %)

6

0 VDC (Power supply)

7

Not connected

Connector wiring: S32

S32 CONNECTOR PIN ASSIGNMENT

PIN

FUNCTION

M16 male

(view from sensor side)

1

Clock (+)

2

Data (+)

3

Clock (-)

4

Not connected

5

Data (-)

6

0 VDC (Power supply)

7

+24 VDC (-15 / +20 %)

8

Not connected

Connector wiring: D84

PIN CONFIGURATION

D84

PIN

OUTPUT

M12 male connector

(view from cable entry side)

1

Clock (+)

2

Clock (-)

3

Data (+)

4

Data (-)

5

Not connected

6

Not connected

7

+24 VDC (-15 / +20 %)

8

0 VDC (Power supply)

Mounting Recommendations

Flexible Waveguide
A sensor with a flexible waveguide is used in vertically installed hydraulic cylinders, as well as in applications that require non-standard measurements, both in terms of length and motion. The Teflon coating of the waveguide allows the sensor to be used in harsh environments with high levels of contamination.

Position measurements are performed using ring-shaped magnets that move along the sensing rod without physical contact. The sensor with a flexible waveguide can be mounted either inside the hydraulic cylinder or on the equipment using special clamping brackets.

INSTALLATION WITHOUT AUXILIARY TUBE

The minimum bend radius is 250 mm. Exceeding this limit may cause irreversible damage to the sensor waveguide due to stretching and deformation.

INSTALLATION WITH AUXILIARY TUBE

The sensor flange accommodates the installation of an auxiliary tube with the following dimensions:

- Outer Ø 10 mm, inner Ø 8 mm, maximum length 8 meters

- Outer Ø 12.7 mm, inner Ø 8.5 mm, maximum length 20 meters

The auxiliary tube must be made of non-magnetic material. For horizontal installation, clamping brackets must be installed every 500 mm.

For ordering the auxiliary tube:

Ø 10 mm: order code 100HFXXXXX, where XXXXX = stroke length in mm + 150 mm

Ø 12.7 mm: order code 127HFXXXXX, where XXXXX = stroke length in mm + 230 mm

Example:

For a sensor with a 900 mm stroke length, order code: 100HF01050

For a sensor with an 8500 mm stroke length, order code: 127HF08730

Interface

SSI PROTOCOL TIMING DIAGRAM

This oscillogram shows a standard SSI transmission.

Channel 1 reads the clock signal "Clock (+)"

Channel 2 reads the binary code "Data (+)"

The interval between two transmissions (Monoflop time) is 16 microseconds. This performance corresponds to Temposonics V series sensors.

As a result, our sensors are compatible with all controllers currently available on the market.**

Более подробно про синхронно-последовательный интерфейс (SSI) можно почитать в данной статье.

Connection example

DEVICE CONNECTION DIAGRAM

Setting

When replacing a failed sensor, recalibration of the equipment is required in most cases. This can be done in two ways:

  • If the customer’s machine has a calibration function, after replacing the sensor, the operator assigns the new end positions to the machine’s control system by moving the mechanism in manual mode.
  • Using the MSI-253 135 programmer, the new zero point value can be programmed directly into the sensor. The procedure is similar to the first method, but in this case, the value is assigned to the sensor rather than to the customer’s machine.

MSI-253 135 PROGRAMMER

Description:

USB-SSI programmer for digital sensors of the following series:

MSI-H,

MSI-P,

MSI-D,

MSI-F,

MSI-B.


Functions:

Zero point programming;

Ability to modify all SSI parameters;

Sensor functionality diagnostics.

Scope of delivery:

Programmer art. no. MSI-253 135 for SSI linear position sensors (1 pc.);

Power supply 220 VAC → 24 VDC (1 pc.);

USB cable (1 pc.);

Ring-shaped position magnet art. no. MSI-201 542-2 (1 pc.);

Connection cable for sensor with D70 connector (1 pc.);

Connection cable for sensor with S32 connector (1 pc.);

User manual (1 pc.).

Status diagnostics

LED DIAGNOSTICS

GREEN

RED

STATUS

Off

Off

No power supply or sensor fault

On

Off

Normal operation

On

On

No position magnet or incorrect number of magnets

Depends on status

Off

Programming mode, accessible via USB-SSI programmer art. no. MSI-253 135

Interchangeability

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