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D1413-1e
Application Guide
for wheel sensor type
RSR180
Frauscher GmbH
Gewerbestraße 1
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
4774 St. Marienkirchen
Phone: +43/7711/2920
Fax: +43/7711/2920-25
Internet: http://www.frauscher.com
E-mail: [email protected]
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 1 / 13
path: f:\entwick\auftrag\X42-DokuRSR180\Doku\D1413-1e\D1413-1e.p65
Index
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
Review list ....................................................................................................................................... 3
Bibliography .................................................................................................................................... 3
1.
1.1
1.2
1.3
1.4
1.5
1.6
1.7
General Data ....................................................................................................................... 4
Field of application ................................................................................................................. 4
Mechanical structure .............................................................................................................. 4
Mounting ............................................................................................................................... 4
Functional principle ................................................................................................................ 5
Definition of sensor current ..................................................................................................... 6
Equivalent circuit diagram ....................................................................................................... 7
Frequency range of transmitter coil ......................................................................................... 7
2.
2.1
2.2
Interface Conditions............................................................................................................ 8
Supply current ........................................................................................................................ 8
Signalling cable ..................................................................................................................... 10
3.
3.1
3.2
3.3
Admissible Operating Conditions .....................................................................................
Environmental conditions ......................................................................................................
Electromagnetic stress ..........................................................................................................
Insulation voltage ..................................................................................................................
4.
4.1
4.2
4.3
Maintenance ...................................................................................................................... 12
Track occupancy detection capability test ............................................................................. 12
Test of sensor system currents .............................................................................................. 12
Mechanical/ visual inspection ................................................................................................ 12
5.
5.1
5.2
5.3
5.4
5.5
5.6
5.7
Safety-relevant Application Instructions ......................................................................... 13
Wheel diameters .................................................................................................................. 13
Traversing speed .................................................................................................................. 13
Lateral wheel tolerance ......................................................................................................... 13
Mounting and commissioning ................................................................................................ 13
Maintenance ........................................................................................................................ 13
Signalling cable ..................................................................................................................... 13
Safety-relevant regulations .................................................................................................... 13
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
11
11
11
11
Document:
D1413-1e
Page: 2 / 13
Review list
Vers. Date
1
23.01.2002
Prepared by
Section modified
Reason
Fasthuber
all
New version
Bibliography
[]
Designation
Issue
[1] Mü8004
Principles for the Technical Approval of Signalling and Telecommuniation Installations
1.1.1998
[2] D1414-1
Mounting and Commissioning of Wheel Sensor type RSR180
[3] DIN 40 050
IP protection classes, protection of electrical equipments against accidental contact, foreign
bodies and water
[4] EBO
German law governing the construction and operation of railways
[5] DIN VDE 0816
Outdoor cables for telecommunication and data processing installations
02/1988
[6] ÖVE-K 11/1974
ÖVE-K 11a/1981
Railway signalling cable with plastic insulation (star-quad)
08/1982
[7] ÖVE-T3
ÖVE-T3a
Electrical Railway Protection Installations and Equipments
Amendment to ÖVE-T3
1.5.1979
1.4.1983
[8] EN 50121-4
Railway applications, electromagnetic compatibility
[9] EN 60529
Housing-related protection
27.12.2001
05/1993
1992
March 2000
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
1991
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 3 / 13
1. General Data
1.1 Field of application
Depending on signal evaluation and safety requirements, wheel sensor applications may comprise
anything from simple detection and monitoring tasks to detection of driving direction and axle counting.
1.2 Mechanical structure
Electronics of the wheel sensor RSR121 are located in a glass-fiber reinforced plastic housing,
dimensions being 60 x 60 x 230 mm. Wheel sensor RSR180 may be fixed either by web of rail
mounting or rail claw mounting [2].
Web of rail mounting
Rail claw mounting
1
2
2
1
3
À ...... Wheel sensor RSR180
Á ...... Fixing bolt
 ...... Fixing claw
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
Fig. 1: Mechanical structure
1.3 Mounting
Mounting of the wheel sensor is not part of this application guide.
For mounting please follow instructions as set forth under [2] !
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 4 / 13
1.4 Functional principle
Wheel sensor operation is based on the principle of field line deflection. The magnetic field lines of
a transmitter coil, placed concentrically in the wheel sensor housing, flow through the transmitter
coils. In the presence of metallic objects, either above or below of the transmitter coils, magnetic
induction in the transmitter coil will change due to the deflection of the field lines. This effect is used
to detect the wheel flange of a train wheel. Simultaneously, the position of the wheel sensor at the rail
is monitored as the surface of the rail foot below the transmitter coils influences the sensor signal.
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
Fig. 2: Functional principle
Fig. 3: Typical signal curve by traversing from system 1 to system 2
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 5 / 13
1.5 Definition of sensor current
Fig. 4: Definition of sensor current
•
Sensor current level
If the sensor is not influenced by a train wheel or any other metallic object, the sensor current level
is output.
•
Damping range
Damping range is the range between the minimum sensor current and the sensor current level.
•
Minimum sensor current
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
The minimum sensor current depends on rail profile, train wheel material, wheel flange diameter and
lateral wheel tolerance.
•
Drop off detection
If the wheel sensor drops off the rail, both sensor systems will be permanently damped.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 6 / 13
1.6 Equivalent circuit diagram
The wheel sensor is supplied with a constant current of 59 mA. The sensor current of each wheel
sensor system is 2,8 ... 4,5 mA.
Fig. 5: Equivalent circuit diagram of a wheel sensor RSR180
1.7 Frequency range of transmitter coil
The transmitter coil in wheel sensor RSR180 uses a frequency of 250 kHz.
In order to avoid mutual interference of 2 wheel sensors, it is absolutely necessary that
during mounting spacing between wheel sensors is at least equal to one space between
sleepers. See under [2].
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
In order to avoid interference of sensors, emissions (for example by vehicle converters) in the vicinity of the sensors within the frequency range of the transmitter coil must
be suppressed.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 7 / 13
2. Interface Conditions
2.1 Supply current
Wheel sensor type RSR180 is supplied with a constant current of 59 mA. The influence of the
supply current on the sensor current is shown in fig. 6. Fig. 7 shows the supply voltage as function of
the supply current. Measure series were carried out using a S49, with web of rail mounting usinh the
upper mounting position (= new rail). Both sensor systems were connected to GND using a 500
Ohm measuring shunt. For sensor system 1, the voltage drop was measured at the measuring shunt
and converted into the corresponding current value. The supply voltage of the wheel sensor was
measured undamped.
4
Sensor undamped
3,5
3
Sensor dropped off
Sensor current [mA]
2,5
Sensor damped
2
1,5
1
0,5
0
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
Supply c urrent [mA ]
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
Fig. 6: Influence of supply current on sensor current
•
Sensor dropped off: For this measure series, sensor and fixing bolts were dismounted and
placed at about 10 cm from foot of rail.
•
Sensor undamped: Rail mounting. No additional influencies by metallic objects.
•
Sensor damped: For this measure series, sensor system 1 was damped by a standard damping
plate type NB200 and current input was measured. Sensor system 2 was not damped.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 8 / 13
20
14
12
Supply voltage [V]
10
8
6
4
2
0
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
Supply current [mA]
Fig. 7: Supply voltage as function of supply current
Sensor current of wheel sensor RSR 180 depends on rail profile and mounting position.
Curves shown in fig. 6 and 7 may therefore significantly differ from reality.
The measured voltage values are values from the track site (trackside connection box).
Voltage drops in cables, at measuring shunts or at internal resistance of voltage supply will
have to be considered additionally
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
Attention: Wheel sensor RSR180 only has an incorporated reverse voltage protection as
from GS02!
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 9 / 13
2.2 Signalling cable
The wheel sensor features a cable of 5 m length, type 11YMH11YÖ-OZ4x0,75 mm² in compliance
with DIN, with colour-coded wires, that is fixed moulded and additionally mechanically protected
by a mineral oil resistant neoprene tube. The RSR180 cable set is connected to the main cable in the
trackside connection box by means of a screw terminal.
For cabling between wheel sensor and evaluation module, requirements of respective evaluation
module in regard to signalling cables are to be considered during project phase.
So as to ensure almost interference-free signal transmission, star-quad signalling cables are
recommended on principle, such as:
•
•
•
star-quad railway cable in compliance with DB Specification DLK 1.013.109y
signalling cable in compliance with [5]
star-quad railway signalling cable in compliance with [6]
or equivalent cable types.
If a star-quad cable is used, the sensor should be connected as shown
in fig. 8.
If the cable features a shield, there is no need of connecting the shield
at one or both ends.
For the maximum loop resistance of the signalling cable following
data apply:
max. loop resistance at U0 = 15 VDC .................. 25 Ohm
max. loop resistance at U0 = 30 VDC .................. 250 Ohm
Fig. 8: Section of a star-quad
cable
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
It is necessary to ensure that the supply current at the wheel sensor does not drop below59 mA.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 10 / 13
3. Admissible Operating Conditions
3.1 Environmental conditions
•
Storage [1] *1)
Ambient conditions ............................1K4
Mechanical conditions ........................1M3
•
Transport [2] *1)
Ambient conditions ............................2K3
Mechanical conditions .........................2M3
•
Operation [3] *2)
Ambient conditions ............................4K4, specific temperature range from -40°C to+80°C
Biological conditions ............................4B1
Chemically active substances ...............4C3
Mechanically active substances ........... 4S4
Mechanical conditions ........................ 4M8
*1)
*2)
Data apply to manufacturer's packing. Higher protection requirements can be achieved by
using adequate packaging (please confer with manufacturer).
The housing of the RSR180 is resistant to most types of oils, lyes, greases and saline substances.
In special cases please confer with the manufacturer or determine chemical resistance by test
series.
Protection class IP 67 in compliance with EN 60529 is warranted..
3.2 Electromagnetic stress
The wheel sensor was subjected to an EMC type test in compliance with pr EN50121-4 (2000).
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
3.3 Insulation voltage
Insulation voltage of sensor electronics with reference to rail is 5 kVeff at 50 Hz.
Insulation voltage of cable is 3 kVeff at 50 Hz.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 11 / 13
4. Maintenance
4.1 Track occupancy detection capability test
Cycle:
£ 1 year
Test:
a) Traversing of rail by a train
b) Damping using testing plate type PB200
ad a) Upon traversing by a train, the evaluation module must detect occupancy of the track.
ad b) Testing plate type PB200 is placed over the respective sensor system (see [2]). The evaluation
module must detect occupancy of the track
4.2 Test of sensor system currents
Sensor system currents must be measured under damped condition at correctly mounted sensors.
Cycle:
£ 1 year
Test:
Test instructions are to be taken from the documentation of the respective evaluation
unit.
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
4.3 Mechanical / visual inspection
•
Check wheel sensor for excessive dirt; if necessary, remove loose dirt.
•
Inspect wheel sensor for mechanical damage; if necessary, replace wheel sensor.
•
Verify spacing between top face of sensor and top of rail; if necessary adjust height as
instructed under [2].
•
Check fixing elements of wheel sensor for proper fit and tighten if necessary. Comply with
torque data stated under [2].
•
Inspect cable protection tube for mechanical damage and replace if necessary.
•
Check cable terminals for proper fit and tighten if necessary.
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 12 / 13
5. Safety-relevant Application Instructions
5.1 Wheel diameters
•
For wheel geometry measurements and tolerances as defined by EBO [4] apply.
•
The maximum wheel diameter admissible is 2000 mm.
5.2 Traversing speed
•
Irrespective of limits defined by signal path and signal evaluation, the following speed range
applies:
min. traversing speed...... 0 km/h (static)
max. traversing speed..... 350 km/h (determined by test series)
5.3 Lateral wheel tolerance
•
For the lateral wheel tolerance, the data as defined by EBO [4] apply.
5.4 Mounting and commissioning
•
Instructions for mounting and commissioning as set forth under [2] are to be complied with.
5.5 Maintenance
© Frauscher GmbH - All rights reserved
No part of this document may be printed or
reproduced in any form or by any means, electronic
or others, for any purpose nor transferred to third
parties without the express written permission of
Frauscher Sensortechnik GmbH
•
Maintenance tasks may vary depending on the properties of the evaluation modules and the
safety concept of the signalling or protection systems. Where maintenance instructions of the
system do not refer to wheel sensor maintenance, maintenance instructions as set forth in chapter
4 will apply.
5.6 Signalling cable
•
For cabling between wheel sensor and evaluation module, requirements of respective evaluation
module in regard to signalling cables are to be considered during project phase.
5.7 General safety regulations
•
Compliance with respective general safety regulations in force is required!
Date
Prep.
02.01.2002
Checked 31.01.2002
Name
Fasthuber
Altehage
Application Guide for
Wheel Sensor Type RSR180
Document:
D1413-1e
Page: 13 / 13