Sick TTK70 Catalog Page

COMPACT ABSOLUTE LINEAR ENCODER
WITH HIGH RESOLUTION

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TTK70 LINEAR ENCODERS

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Product description

The TTK70 non-contact linear encoder
consists of a compact read head and
a magnetic tape. The magnetic tape
is equipped with a magnetic partition
and forms the measurement scale. The
partition consists of an incremental and
an absolute track (two-track tape). To
calculate the absolute position value, the

At a glance

• Non-contact absolute positioning

• Small, compact read head

• Standard SSI interface, combined

with sin/cos output

Your benets

• Easy integration into existing systems

• Small size, low weight and high

traversing speed deliver excellent
process dynamics

• After installation, the system is

immediately available and completely
maintenance-free, which leads to time
and cost savings

read head detects both the absolute and
incremental components. The position
value is directly output for further pro­cessing.
The TTK70 has an SSI output for abso­lute positioning and an incremental Sin/
Cos output for recording speed in real
time.

• Measuring lengths of up to 4 m

possible

• High level of accuracy (± 10 µm)

• High resolution (1 µm)

• High traversing speed of up to 10 m/s

• Immune to environmental factors

such as contamination and condensa­tion, ensuring increased reliability

• Real-time speed determination plus

absolute positioning due to Sin/Cos
and SSI output

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Additional information

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Detailed technical data ........J- 661

Ordering information ..........J-662

Dimensional drawings .........J-663

Position tolerance.............J-663

PIN and wire allocation ........J-664

Interfaces ...................J-665

Recommended accessories ....J-666

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Fields of application

• Extremely wide range of positioning tasks in mounting and

handling systems, robotics, automation, machine tool and
production systems, metal and steel processing, electronics

Detailed technical data

Performance

LINEAR ENCODERS TTK70

and solar industry, packaging industry, wood processing
industry

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Measuring length
Magnetic tape length
Resolution
Period length
Traversing speed

Dynamic operation (Sin/Cos) < 10 m/s

Repeatability
System accuracy
Electrical interface
Connection type

Mechanical data

Dimensions
Mass

Material

Max. 4,000 mm

Measurement length + 80 mm

1 µm

1 mm

Static operation (SSI) < 2 m/s

Max. ± 2 µm

± 10 µm

SSI + Sin/Cos

Male connector, M12, 12-pin

See dimensional drawing

Read head 0.08 kg

Magnetic tape 0.18 kg/m

Read head Zinc die cast

Magnetic tape 17410 Hard ferrite 9/28 P

Substrate tape Stainless steel

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Electrical data

Electrical interfaces

SSI 24 bit, gray

Sin/Cos 1 V

Supply voltage
Max. power consumption
Operating current (no load)
MTTFd: mean time to dangerous failure

1)

This product is a standard product and does not constitute a safety component as dened in the Machinery Directive. Calculation based on nominal load of devices,
average ambient temperature 40 °C, frequency of use 8,760 h/a. All electronic failures are considered hazardous. For more information, see document no.

8015532.

Subject to change without notice

1)

SS

4.5 … 30 V

Max. 1.2 W

55 mA

65 years (EN ISO 13849)

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TTK70 LINEAR ENCODERS

Ambient data

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Operating temperature range

Read head –30 °C ... +85 °C

Magnetic tape –20 °C ... +70 °C

Storage temperature range

Read head –40 °C ... +85 °C

Magnetic tape –30 °C ... +80 °C

Relative humidity / condensation
Resistance to shocks
Resistance to vibrations
EMC
Enclosure rating

Temperature coefcient of magnetic tape
Maximum permitted ambient eld

strength

Maximum permitted eld strength

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The maximum permitted external eld inuence is reached when the position value deviates from the original value (without external eld inuence) by more than
5 μm. This value is reached when, at the sensor location, a eld strength of 3 kA/m to 4 kA/m (3.8 mT ... 5 mT) occurs in addition to the eld strength of the magnet-

ic tape.

100%, condensation permitted

30 g / 6 ms (EN 60068-2-27)

20 g / 10 Hz ... 2,000 Hz (EN 60068-2-6)

EN 61000-6-2, EN 61000-6-3

IP 67, with mating connector tted

(11 ± 1) µm/K/m

< 3 kA/m to 4 kA/m (3.8 mT ... 5 mT); to ensure accuracy values are maintained

< 150 kA/m (< 190 mT); to ensure the magnetic tape is not irreparably damaged

Ordering information

System part Magnetic tape length Type Part no.

Read head – TTK70-AXA0-K02 1038033

0.5 m

1 m

1.5 m

2 m

Magnetic tape

2.5 m

3 m

3.5 m

4 m

MVM-0M5-2MC-

MKLB

MVM-01M-2MC-

MKLB

MVM-1M5-2MC-

MKLB

MVM-02M-2MC-

MKLB

MVM-2M5-2MC-

MKLB

MVM-03M-2MC-

MKLB

MVM-3M5-2MC-

MKLB

MVM-04M-2MC-

MKLB

6037415

6037417

6037418

6037419

6037420

6037421

6037422

6037423

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Dimensional drawings (dimensions in mm)

< ± 1°

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Position tolerance

General tolerances according to ISO 2768-mk

1 Without covering tape
2 With covering tape

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TTK70 LINEAR ENCODERS

PIN and wire allocation

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M12 male connector, 12-pin
SSI + Sin/Cos

PIN Color Signal Explanation

1 Orange-black Reconciliation For internal purposes only / connect to GND

2 White SSI data + Signal wire

3 Brown SSI data - Signal wire

4 Violet SSI clock - Signal wire

5 Red +U

6 Gray /Sin Signal wire

7 Green Sin Signal wire

8 Pink /Cos Signal wire

9 Black Cos Signal wire

10 Orange SET

11 Yellow SSI clock + Signal wire

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SET This input activates the electronic zero set. If the SET wire is connected to US for more than 1.2 seconds after it had previously been unassigned or connected

Shield connected to housing on encoder side. Connected to ground on control side.

12 Blue GND Ground connection

to GND, the position of the encoder above the magnetic tape corresponds to the value 0.
Attention! The SET input must be connected to GND or not be connected when the encoder is switched on. If electronic zeroing is performed using the SET
input, the synchronization between the SSI and Sin/Cos signals is lost.

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Operating voltage

Electronic adjustment

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Interfaces

Clock +

Bi

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2,5

2,5

V

360° el.

LINEAR ENCODERS TTK70

SSI interface

Data format

t

Bit 1–24: Position bits

• LSB: Least signicant bit

• MSB: Most signicant bit

Bit 25-26: Errorbits

• ERRORBIT 1: Error message concerning distance between read head and magnetic tape. This bit is set in the SSI data stream if

• ERRORBIT 2: Error message concerning working temperature. This bit is set in the SSI data stream if the sensor is operating

Errorbits must evaluated in the PLC.

The errorbits do not have to be used by the PLC. To be able to evaluate the errorbits, the PLC must send at least 26 clock pulses
per clock pulse train. A maximum of 31 clock pulses must not be exceeded. If more than 26 pulses are sent, the additional bits are
output with "0".
If the errorbits cannot be evaluated in the PLC, the control unit must be set to an encoder resolution of 24 bits.

12345678910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

MSB

the maximum permitted distance between the read head and the magnetic tape is exceeded. The output position
value is invalid.

above its maximum permitted working temperature.

17 16181920212223 15 14 13 12 11 10 987 6543210

LSB

ERRORBIT 1ERRORBIT

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Sin/Cos interface 1 V

Supply voltage Output

4.5 ... 30 V Sine 0.5 V

Signals before difference at 120 Ω load at US = 5 V

Signal diagram with read head moving in direction of arrow

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90° el.

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Interface signals sin, sin, cos, cos Signals before difference at 120 Ω load Signal offset

Differential analog 0.5 VSS ± 10% 2.5 V ± 5%

SS

SS

0,5 V

COS+ COS–

0,5

SIN+ SIN–

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TTK70 LINEAR ENCODERS

COS+ ... COS–

SIN+ ... SIN–

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V

360° el.

Signals after difference at 120 Ω load at US = 5 V

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Signal diagram with read head moving in direction of arrow

0 V

90° el.

0 V

Recommended accessories

Connectors

Plug connectors and cables

Connecting cables with female connector

Figure Brief description Length

Head A: M12 female connector, 12-pin, straight
Head B: cable
Cable: SSI, PUR, shielded, 12 x 0.14 mm², Ø 8.5 mm
Suitable for use with drag chains

Head A: female connector, M12, 12-pin, angled
Head B: cable
Cable: SSI, PUR, shielded, 12 x 0.14 mm², Ø 8.5 mm
Suitable for use with drag chains

- For additional accessories, please see page K-668 onwards

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Type Part no.

of

cable

2 m DOL-1212-G02MAC1 6053273

5 m DOL-1212-G05MAC1 6053274

10 m DOL-1212-G10MAC1 6053275

20 m DOL-1212-G20MAC1 6053276

2 m DOL-1212-W02MAC1 6039824

5 m DOL-1212-W05MAC1 6039825

10 m DOL-1212-W10MAC1 6039826

20 m DOL-1212-W20MAC1 6039827

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