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2017-04-04 22:12:27

Angular Position Transducers

drehgeber01

» Angular Position Transducers

with inductive magnetoresistive or optoelectronic measuring systems

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Today potentiometric Angular Position Transmitters attain a still more status with regard to the analogue measuring technique as far as high-quality measurement tasks are concerned due to the favourable value for money.

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They are mainly used for

Power and braking control elements for railway vehicles

as well as ship telegraphs

Rudder and propeller systems for ships

Control drives for systems in the field of energy

management and chemical industry

Lifting gears and slewing mechanisms of cranes

and excavators

Tail vanes for meteorological measurements

As dancer potentiometers for textile and paper machinery

As well as for measurements in the field of mechanical,

apparatus and medical engineering

Potentiometric transmitters have either a high-resolution element of conductive plastic or a high-resolution gold or constantan wire with various resistance and angle values.

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They are available in various sizes as single-turn or multiple-turn potentiometers or in a multiple design.

For adjustment of the measuring range almost all series can be provided with short-circuiting tracks, taps and function windings.

Some models are available with incorporated Signal Converter providing current or voltage outputs in configuration of 2, 3 or 4 wires.

To ensure reliability in very dirty atmospheres, oil-filled potentiometers are available.

Moreover, to provide protection for all potentiometers from mechanical damage, dusty and damp industrial atmospheres a series of casings with a degree of protection IP 40 to IP 68 is available which can be equipped with gearing and limit switches.

Measurement and Sensor Systems

System versions

WD Differential inductor

Inductive transducer systems (WD) are available as models of synchro size 20 (series 620) and synchro size 23 (series 1023).

They contain a differential inductor designed in form of a ring winding with a non-contact tapping.

The electrical output signals representing zero and final value of the mechanical drive shaft angle are available within a broad range of limits via trimming potentiometers of the incorporated or separate electronics.

For use in explosive installations, transducer systems as well as electronic components are available with a degree of protection EEx and Exd with ATEX approval.

MH Permanent magnet

Magnetic transducer systems (MH) are available as models of synchro sizes 9, 13, 20 and 23. They are fully enclosed in an aluminium casing of two chamber design and contain a permanent magnet with a high-precision angular encoder.

Signals are output either analogue, e. g. with 4 - 20 mA, or digitally coded (CAN open standard).

Output signal of transducers with analogue output can be programmed via rear keys of transducer to the respective measuring range.

For safety-relevant applications these systems are also available in redundant version according to IEC 61508 (SIL).

Xi u. XA Coded disk

Optoelectronic transducer systems (XI and XA) are available as models of synchro size 23 in incremental and absolute coded design.

Incremental systems convert the angle to be measured into a proportional number of pulses, appearing in two tracks A and B with an offset of 90° for identification of direction.

Absolutely coded systems are available as single- or multi-turn encoders.

They contain a gray-coded rotating disk whose 12 concentric tracks are optically scanned by infrared diodes and phototransistors.

Signals are output parallel via NPN or PNP transistors or analogue via a digital-to-analogue converter with current output 4 - 20 mA.

All transducers can also be supplied with field bus interface CAN open standard and in user-specific data format respectively.

Specifications

System versions Magnetic systems

Models

Series MH 609 MH 613 MH 620 MH 1023 MH 1023 ext

Single-turn / multi-turn single-turn multi-turn single-turn multi-turn single-turn single-turn multi-turn single-turn

Synchro size 9 13 20 23 special size

Casing - Ø 22,2 mm 36,5 mm 50,8 mm 60 mm 60 mm

Shaft - Ø 6 mm 6 mm 6 mm 6 / 10 mm external magnet

Angle of rotation max. 360° 1080° 360° 5760° 360° 360° 23040° 360°

Revolution max. 1 3 1 16 1 1 64 1

Voltage output 0,5 - 4,5 V 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V

Current output – 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA

Pulse output – – – – –

Bus output – – CAN / CANopen CAN / CANopen CAN / CANopen

Redundant electronics – – 4 - 20 mA / CAN 4 - 20 mA / CAN 4 - 20 mA / CAN

Signal adjustment via fixed alignment keys cable keys or CAN-Bus fixed alignment

Linearity ± 0,5 % ± 0,1 % ± 0,3 % ± 0,2 % ± 0,2 % ± 0,2 %

Resolution 12 bit 12 bit 16 bit 14 bit 14 bit 14 bit

Supply 5 V DC 18 - 33 V DC 1 x or 2 x 18 - 33 V DC 18 - 33 V DC 18 - 33 V DC

Current consumption < 80 mA < 80 mA < 80 mA < 80 mA < 80 mA

IP code of casing up to IP 67 IP 65 IP 67 IP 68 IP 68

Connection standard wire solder-type terminals / cable cable plug / cable plug / cable

Weight 100 g 100 g 200 g 400 g 400 g

Approval – – – – TÜV

Article number 1130Z01 1140Z01 2740Z01 2750Z01 2845Z01 5750Z02 5755Z02 5850Z01

General data

Casing material alu, anodized, partly vanished, special version: saline-resistant coating HART-COAT

Shaft material stainless steel

Shaft bearing ball bearing

Temperature range -30°C up to +70°C, other ranges on request

Test voltage 500 V, 50 Hz, 1 min

Immunity standard EN 61 000-6-2

Emission standard EN 61 000-6-4

Shock 50 g, 6 ms

Vibration 4 g Sinus 5 - 100 Hz

Current output RL≤600Ω 3 wire system, 2 and 4 wire system on request

Voltage output RL≥10 kΩ 4 wire system

Supply voltage 18 - 33 V DC, other supply on request

System versions Magnetic systems 2-fold systems Inductive systems

Models

Series MH 670 MH 4096 Xi / MH 1023 XA 1023 WD 620* WDG 620*

Single-turn / multi-turn single-turn multi-turn single-turn single-turn multi-turn single-turn

Synchro size special construction special construction 23 23 20

Casing - Ø 70 mm 61,5 mm 60 mm 60 mm 50,8 mm

Shaft - Ø 6 mm 10 mm 6 / 10 mm 6 / 10 mm 6 mm

Angle of rotation max. 360° 4096 revolutions 360° 360° 23040° 90° 360°

Revolution max. 1 4096 1 1 64 1

Voltage output – – – – 0 - 10 V**

Current output 4 - 20 mA / two-wire – 4 - 20 mA 4 - 20 mA 4 - 20 mA

Pulse output – – max. 3.600 pulses – –

Bus output – profi-bus / CAN / CANopen – CANopen –

Redundant electronics – – 4 - 20 mA / 3.600 pulses – –

Signal adjustment via membrane key – fixed aligment fixed aligment trimmer

Linearity ± 0,35° ± 0,3° ± 0,2 % ± 0,2 % ± 0,5 %

Resolution 12 bit / 360° 12 + 12 bit 14 bit / 720 pulses 12 bit 16 bit ∞

Supply 18 - 33 V DC 10 - 30 V DC 2 x 18 - 33 V DC 18 - 33 V DC 18 - 33 V DC

Current consumption 4 - 20 mA – < 80 mA < 80 mA < 60 mA

IP code of casing up to IP 54 (IP 65) IP 68 IP 68 IP 67 IP 30

Connection plug cable plug / cable plug / cable solder-type terminals

Weight 450 g 600 g 500 g 400 g 60 g 120 g

Approval – – – – Atex

Article number 5550S01 5756Z01 5770Z02 5740Z02 5730Z02 9252Z10 9253Z10

* series WD also available in intrinsically safe version, see page 10

Terminal connecting plan color of standard wire or cable solder-type

terminals

cable / standard wire

V- or mA supply

output Us +

0 V

– green

brown

yellow white 5

plug 7-poles

V- or mA supply

output Us +

0 V

– 6

plug 5-poles supply CAN-output Us +

0 V

Low

High 2

** only via external electronic, see page 10

On request also available in version according toGL certificate

IEC 61508, SIL (Safety Integrated Level) oravailable

ISO 13849, PL (Performance Level) possibleon request

Models

MH 609 Standard wires

MH 613 Solder-type terminals

MH 620

PG screwing with cable outlet

MH 1023

MH 1023 ext

MH 670

MH 4096

Xi / MR 1023

Models

XA 1023

WD 620 Solder-type terminals

WDG 620 Solder-type terminals

Examples for special versions

Specifications of separate components

Couplings

1. Unilat coupling for shaft diameter:

Ø 4/6 mm

Ø 6/6 mm, Ø 6/8 mm, Ø 6/10mm, Ø 6/12 mm

Ø 8/8 mm, Ø 8/10 mm, Ø 8/12 mm

Ø 10/10 mm, Ø 10/12 mm

Material: Aluminium or brass/plastic

2. Balg coupling for shaft diameter:

Ø 6/6 mm, Ø 6/10 mm

Ø 10/10 mm, Ø 10/12 mm

Ø 12/12 mm

Material: Brass alloy

3. Drive coupling for shaft diameter:

Ø 6/6 mm, Ø 6/8 mm, Ø 6/10 mm, Ø 6/12mm

Ø 8/8 mm, Ø 8/10 mm, Ø 8/12 mm

Ø 10/10 mm, Ø 10/12 mm

Ø 12/12 mm

Material: Aluminium

Other versions on request.

Signal converter

Typ WEVI … / K16

Input: signal from transducer series WD

Output: 0 or 4 - 20 mA, RL≤600Ω

Supply: 18 - 33 V DC or 230 V AC

Weight: 300 g

Article number: 9242Z03

Signal converter

Typ WEVI … EEX / K16

Input: signal from transducer series WD

Output: 0 or 4 - 20 mA, RL≤600Ω intrinsically safe

Supply: 18 - 24 V DC intrinsically safe from NBW

Type of protection: CE0102 EXII(2)G[EExib]IIc; PTB-Nr. 04 ATEX 2061X

Weight: 300 g

Article number: 9249Z51

Power supply with signal isolation

Typ NBW … EEX / K16

Input: 4 - 20 mA intrinsically safe

Output: 4 - 20 mA electrically isolated from input RL≤600Ω

Supply: 230 V AC

Type of protection: CE0102 EXII(2)G[EExib]IIc; PTB-Nr. 04 ATEX 2050

Weight: 300 g Article number: 8249Z02

Specifications of protective casing

Mechanical data

Casing aluminium,

grey varnished coating

Degree of protection IP 65 (IP 68)

Shaft material stainless steel

Bearing two ball bearings

Bearing friction 1,5 Ncm

Gearing 1:1 up to 256:1 *

1:10 **

Weight ca. 1,5 kg

Article number 1831S10

GS 100

Accepts transmitters size 13 and 20, servo mount.

* backlash compensated or reduced backlash

** backlash compensated

Mechanical data

Casing aluminium,

grey varnished coating

Degree of protection IP 65 (IP 68)

Shaft material stainless steel

Bearing two ball bearings

Bearing friction 4 Ncm

Gearing 1:1 bis 1296:9 *

1:1 bis 1:10 **

Weight ca. 3 … 8 kg

Article number 1802Z02

GS 150

Accepts all sizes of transmitters up to an outside diameter of 70 mm.

Incorporating switches is possible.

* backlash compensated or reduced backlash

** backlash compensated

GS 120 EEX

Mechanical data

Casing aluminium,

grey varnished coating

Degree of protection IP 65

Protection class EExdIICT6

PTB-No. PTB 03 ATEX

1062 / 1063X

Shaft material stainless steel

Bearing two ball bearings

Bearing friction 1,5 Ncm

Gearing on demand

Weight 5 kg approximately

Article number 1785Z02

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