MSI-P Series Linear Position Sensors with SSI Output

Profile-style, high-precision, absolute, non-contact magnetostrictive position sensor with a measuring range of 25 to 4000 mm.
Position is measured by position magnets that travel along the waveguide with a maximum air gap of up to 10 mm.

Price on request

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Design features

  • The modular design allows fast servicing and repair without releasing pressure from the hydraulic circuit.
  • The sensor is compatible with all BALLUFF position magnets and with selected magnets from Temposonics.
  • The sensor provides absolute linear measurement, with output signals proportional to the displacement of the position magnet.
  • An LED indicator is provided for sensor diagnostics.
  • The sensor delivers high accuracy with resolution up to 1 μm.
  • Measuring length is available from 25 to 4000 mm with 1 mm increments.
  • Linearity: < 0.01 %
  • Repeatability: < 0.001 %
  • Operating temperature: up to 85 °C
  • Protection class: IP67
  • The sensor supports the use of water-resistant and Teflon cables.

 

Configurator

MSI-P

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T

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S

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1

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MSI-P Series Linear Position Sensors with SSI Output, order code:

Scope of delivery

THE SCOPE OF SUPPLY INCLUDES:

Linear position sensor

Certificate of Conformity

Manual

Warranty card

Mounting brackets

For L < 500: 2 clamping brackets

Fot L > 500: 2 clamping brackets + 1 additional clamping bracket every 500 mm

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

12*

MSI-P

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L

.

0

5

0

0

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T

.

D70

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S

1

B

2

1

0

0

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ER1

1

Series:

MSI-P - Profile Housing

2

Magnet type:

- Without magnet

S – Magnetic slider “S”, mechanically coupled, free travel

SP – Magnetic slider “SP”, mechanically coupled, close-fit design

L – Position magnet “L”, air gap up to 10 mm

K – Position magnet “K”, air gap up to 4 mm

3

Measuring range:

0025...4000 mm, 1 mm step

Other lengths available on request

4

Zero point:

T - 13 mm

5

Connection:

D70 – 7-pin male connector, M16

S32 – 8-pin male connector, M16

D84 – 8-pin male connector, M12

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

6

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

12*

Option 2:

– None

ER1 – Extending rod with stabilizer for standard sensor mounting

Technical specifications

OUTPUT PARAMETERS

Measured value

Position

Operating range, L

25 — 4000 mm, 1 mm step

Displacement speed

Any

Update rate

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

2.0 ms up to 4000 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 magnets

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 ± 50 µm for L < 500 mm)

Repeatability

< ± 0.001 % F.S. (minimum ± 2.5 µm)

OPERATING CONDITIONS

Operating temperature

-40 °C…+85 °C

Rated pressure

350 bar, 600 bar peak (optional 800 bar)

Humidity

90 % rel. humidity, no condensation

Ingress protection

IP65, IP67 at cable outlet

MATERIALS

Sensor electronics housing

Aluminum, plastic

Profile

Aluminum

Flange

Stainless steel 08Х18Н10 / AISI 304

MOUNTING

Mounting position

Any

For L < 500: Use 2 clamping brackets

For L > 500: Add 1 clamping bracket every 500 mm

Profile

Movable mounting brackets

Position magnet mounting

Mounting hardware and screws made of non-magnetic material

ELECTRICAL CONNECTION

Operating voltage

For L < 2500: +12/24 VDC (-10% / +20%)

For L > 2500: +24 VDC (-15% / +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

Connection: cable outlet

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)

Connection: 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

Connection: 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

Connection: D84 connector

PIN ASSIGNMENT

PIN

FUNCTION

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)

Installation recommendations

Рекомендации по монтажу датчика MSI-H

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.**

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

ORDER CODE

BALLUFF EQUIVALENT

_ _ _ _ measuring length (mm)

** cable length (m)

Downloads

Technical documentation

v.2.2 – 20.11.25

PDF

9 МБ

9 МБ

01.04.2025

PDF

6 МБ

6 МБ

Certificates

Contact a specialist

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