HBM T10FM User manual

B 23.T10FM.10 en
Torque flange
T10FM
Mounting instructions
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Content Page
Safety instructions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Scope of supply 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Application 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Structure and mode of operation 8. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Mechanical installation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Conditions on site 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Mounting position 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Installation possibilities 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Installation without removing the antenna ring 12. . . . . . . . . . . . . . . . .
4.3.2 Installation with subsequent stator mounting 13. . . . . . . . . . . . . . . . . .
4.4 Preparation for fitting the rotor 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Mounting the rotor 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Installing the stator 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 Mounting the clamping part 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8 Installing the slotted disc (speed measuring system) 22. . . . . . . . . . .
4.9 Aligning the stator (speed measuring system) 23. . . . . . . . . . . . . . . . .
5 Electrical connection 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Shielding design 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Connector pin assignment 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Supply voltage 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Supply voltage for standalone operation 28. . . . . . . . . . . . . . . . . . . . . .
6 Calibration signal 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Settings 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Torque output signal 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Setting up the zero point 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Functional testing 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.1 Power transmission 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.2 Alignment of the speed module 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4 Setting the pulse count 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 Vibration suppression (hysteresis) 33. . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6 Shape of the rotation speed output signal 34. . . . . . . . . . . . . . . . . . . . .
7.7 Type of rotation speed output signal 35. . . . . . . . . . . . . . . . . . . . . . . . .
8 Loading capacity 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Measuring dynamic torque 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Maintenance 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Speed module maintenance 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Dimensions 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Dimensions without the speed measuring system 38. . . . . . . . . . . . . .
10.2 Dimensions with the speed measuring system 39. . . . . . . . . . . . . . . .
10.3 Mounting dimensions 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Order Numbers, accessories 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 Specifications 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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13 Supplementary technical information 49. . . . . . . . . . . . . . . . . . . . . .
13.1 Output signals 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1.1 Output MD: torque (plug 1) 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1.2 Output N: rotation speed and rotation speed
with reference pulse (plug 2) 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1.3 Plug 2, double frequency, stat. direction of rotation signal 51. . . . . .
13.2 Run-out and concentric tolerances 52. . . . . . . . . . . . . . . . . . . . . . . . . . .
13.3 Additional mechanical data 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Declaration of conformity 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Safety instructions
Use in accordance with the regulations
Torque flanges T10FM are used exclusively for torque and rotation speed
measurement tasks and control and adjustment tasks directly connected the-
reto. Use for any additional purpose shall be deemed to be not in accordance
with the regulations.
In the interests of safety, the transducer should only be operated as described
in the Mounting Instructions. It is also essential to observe the appropriate le-
gal and safety regulations for the application concerned during use. The same
applies to the use of accessories.
The transducer is not a safety element within the meaning of its use as inten-
ded. Proper and safe operation of this transducer requires proper transporta-
tion, correct storage, assembly and mounting and careful operation.
General dangers of failing to follow the safety instructions
The transducer corresponds to the state of the art and is fail-safe. The trans-
ducer can give rise to remaining dangers if it is inappropriately installed and
operated by untrained personnel.
Everyone involved with the installation, commissioning, maintenance or repair
of the transducer must have read and understood the Mounting Instructions
and in particular the technical safety instructions.
Remaining dangers
The scope of supply and performance of the transducer covers only a small
area of torque measurement technique. In addition, equipment planners, in-
stallers and operators should plan, implement and respond to the safety engi-
neering considerations of torque measurement technique in such a way as to
minimize remaining dangers. Prevailing regulations must be complied with at
all times. Reference must be made to remaining dangers connected with tor-
que measurement technology.
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In this Mounting Instructions remaining dangers are pointed out using the fol-
lowing symbols:
Symbol: DANGER
Meaning: Maximum danger level
Warns of an imminently dangerous situation in which failure to comply with
safety requirements will result in death or serious physical injury.
Symbol: WARNING
Meaning: Dangerous situation
Warns of a potentially dangerous situation in which failure to comply with sa-
fety requirements can result in death or serious physical injury.
Symbol: CAUTION
Meaning: Potentially dangerous situation
Warns of a potentially dangerous situation in which failure to comply with sa-
fety requirements could result in damage to property or some form of physical
injury.
Symbol: NOTE
Means that important information about the product or its handling is being gi-
ven.
Symbol:
Meaning: CE mark
The CE mark enables the manufacturer to guarantee that the product com-
plies with the requirements of the relevant EC directives (see Declaration of
conformity at the end of this Mounting Instructions).
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Conversions and modifications
The transducer must not be modified from the design or safety engineering
point of view except with our express agreement. Any modification shall ex–
clude all liability on our part for any damage resulting therefrom.
Qualified personnel
The transducer must only to be installed and used by qualified personnel,
strictly in accordance with the specifications and with safety requirements and
regulations. It is also essential to observe the appropriate legal and safety re-
gulations for the application concerned during use. The same applies to the
use of accessories.
Qualified personnel means persons entrusted with the installation, fitting,
commissioning and operation of the product who possess the appropriate
qualifications for their function.
Prevention of accidents
According to the prevailing regulation to prevent accidents a cover has to be
fitted after the mounting of the torque transducers T10FM as follows:
•The cover or cladding must not be free to rotate.
•The cover shall avoid any danger of squeezing and provide protection
against parts that might come loose
•Covers and cladding must be positioned at a suitable distance or so
arranged that it prevents access to any moving parts within.
•Covers and cladding must also be attached if the moving parts of the
torque flange are installed outside peoples’ movement and operating
range.
The only permitted exceptions to the above requirements are if the various
parts and assemblies of the machine are already fully protected by the design
of the machine or by existing safety precautions.
Warranty
In the case of complaints, a warranty can only be given if the torque flange is
returned in the original packaging.
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1 Scope of supply
•Rotor
•Stator
•Mounting Instructions
•Test report
•Option: Speed kit (slotted disc, screwdriver, screw locking device, screws)
2 Application
T10FM torque flanges record static and dynamic torques on fixed or rotating
shafts and establish the rotation speed whilst indicating the direction of rota-
tion. Test beds can be extremely compact because of their very short con-
struction. They offer a very wide range of applications.
In addition to conventional test-rig applications (motor, roller and gear test-
rigs) new solutions for torque measurements partly integrated into the machi-
nes are possible.
Designed without bearings and with non-contacting transmission of excitation
voltage and measured values, the torque measuring system of the gaging
flanges is maintenance-free. This means that effects due to friction or the hea-
ting of bearings simply do not arise.
Torque flanges are supplied for nominal (rated) torques from 15 kN⋅m to
80 kN⋅m. Depending on the nominal (rated) torque, maximum speeds of up to
6000 rpm are permissible.
The T10FM torque flanges are protected from electromagnetic interferences.
They have been tested with regard to EMC according to the relevant Euro-
pean standards, and carry the CE mark.
3 Structure and mode of operation
The torque flange consists of two separate parts: the rotor and the stator.
Strain gages (S.G.) have been mounted on the rotor. The rotor electronics for
excitation-voltage and measuring-signal transmission are located centrally in
the flange. Coils for the non-contact transmission of excitation voltage and
measuring signal are located on the outer circumference of flange B. The si-
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gnals are transmitted and received by a divisible antenna ring. The antenna
ring is mounted on a housing that includes the electronic system for voltage
adaptation and signal conditioning.
The connector for the torque signal, the voltage supply and the speed signal
(option) are located on the stator. The antenna ring should be mounted con-
centrically around the rotor (see chapter 4).
In the case of speed measuring system option, the speed sensor is mounted
on the stator, the customer attaches the associated slotted disc on the rotor.
Rotation speed measurement is made visually in accordance with the princi-
ple of the infrared transmitted light method.
Stator Antenna segments
Rotor
RF enclosure
speed sensor (option)
Flange B
Flange A
Fig. 3.1: Mechanical structure, explosive representation
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4 Mechanical installation
WARNING
Handle the torque flange carefully. The transducer might suffer perma-
nent damage from mechanical shock (dropping), chemical effects (e.g.
acids, solvents) or thermal effects (hot air, steam).
With alternating loads, you should use a screw locking device (medium)
to glue the rotor connection-screws into the counter thread to exclude a
pretension loss due to screw slackening.
An appropriate shaft flange enables the T10FM torque flanges to be mounted
directly. It is possible to mount a cardan shaft or relevant compensating ele-
ment directly on flange B (using an intermediate flange when required). Under
no circumstances must the permissible limits specified for bending moments,
transverse and longitudinal forces be exceeded. Due to the T10FM torque
flanges’high torsional stiffness, dynamic changes on the shaft run are minimi-
zed.
CAUTION
Do in any case check the effect on critical speeds and natural torsional
vibrations to avoid an overloading of the gaging flanges due to reso-
nance step-up.
NOTE
For regular operation do in any case observe the mounting dimensions
(see page 40).
NOTE
Even if the unit is installed correctly, the zero point adjustment made at
the factory can shift by approx. "100 Hz. If this value is exceeded, we
advise you to check the mounting conditions.
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4.1 Conditions on site
The T10FM torque flanges are protected to IP54 according to EN 60529.
They must be protected against coarse dirt particles, dust, oil, solvents and
humidity . During operation, the prevailing safety regulations for the security of
personnel must be observed (see ”Safety instructions”).
The output- and zero signals of the T10FM torque flange are compensated for
the effects of temperature variations between wide limits (see specifications
on page 42). This compensation is carried out at static temperatures. This
guarantees that the circumstances can be reproduced and the properties of
the transducer can be reconstructed at any time.
If there are no static temperature ratios, for example, because of the tempera-
ture differences between flange A and flange B, the values given in the speci-
fications can be exceeded. Then for accurate measurements, static tempera-
ture ratios must be obtained by cooling or or heating depending on the
application. Alternatively, temperature decoupling must be checked, e.g. by
heat radiating elements such as laminated couplings.
4.2 Mounting position
The gaging flange can be mounted in any position. With clockwise torque, the
output frequency is 10 –15 kHz. With HBM amplifiers or when using the vol-
tage output, a positive output signal (0 V to +10 V) is present.
In the case of the speed measuring system, an arrow is attached to the head
of the sensor to clearly determine the direction of rotation. If the gaging flange
moves in the direction of the arrow, the connected HBM measuring amplifiers
give off a positive output signal (0 V...+10 V).
4.3 Installation possibilities
On principle, there are two possibilities for torque flange mounting: with an-
tenna ring complete or disassembled. We recommend to proceed as descri-
bed in chapter 4.3.1 . If mounting in accordance with 4.3.1 is not possible,
(e.g. in the case of a subsequent stator replacement or mounting with the
speed measuring system), you will have to undo the antenna ring. It is essen-
tial in this case to comply with the notes on assembling the antenna segments
(see ”Installing the stator”and “Installing the slotted disc”).
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4.3.1 Installation without removing the antenna ring
1. Install rotor 2. Install stator
3. Finish installation of shaft run
Customized
fastening device
Support supplied by
customer
Clamping part
4. Mount clamp. part where required
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4.3.2 Installation with subsequent stator mounting
1. Install rotor 2. Install shaft run
3. Remove one antenna segment
5. Align stator and finish installation
Stator mounting
supplied by customer
4. Install antenna segment around
shaft run
6. Mount clamp. part where required
Support supplied by
customer
Clamping part
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4.4 Preparation for fitting the rotor
CAUTION
The rotor is heavy (depending on the measuring range, 26 kg – 60 kg)!
To lift it from its packaging and to fit it, use a crane or other suitable lif-
ting devices.
Two lugs are bolted to the rotor to aid transportation and assembly. Hook the
lifting harness into these lugs, as this is the only way to ensure that the rotor
will be lifted horizontally from its packaging (see Fig. 4.1).
CAUTION
You must remove these transportation and assembly lugs once the rotor
is fitted! Keep them somewhere you can find them.
Transportation and assembly lugs
Fig. 4.1: Transportation and assembly lugs on the rotor
1. Lift the rotor from its packaging, turn it horizontally by 180 degrees so that
flange B is pointing upwards (see Fig. 4.2).
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Flange B
Fig. 4.2: Turning the rotor
2. Place the rotor carefully on a clean, stable table.
3. If the rotor is to be mounted horizontally (as in Fig. 4.3), remove one of the
assembly lugs. If the rotor is to be mounted vertically, you need both the
assembly lugs to fit it.
4. Clean the gaging flange’s and counter flanges’plane surfaces. For safe tor-
que transfer, the surfaces must be clean and free from grease. Use a piece
of cloth or paper soaked with a solvent. Make sure that no solvent drips
into the gaging flange’s interior and that the transmitter coils do not suffer
damage.
5. Attach the lifting harness to the assembly lug(s), lift the rotor carefully and
move it to the assembly point (see Fig. 4.3).
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Fig. 4.3: Rotor installation (horizontal)
4.5 Mounting the rotor
CAUTION
If the rotor is to operate perfectly, you must comply with the mounting
dimensions (especially the air gap area, see Page 40).
Additional installation notes for the speed measuring system can be found in
Chapter 4.8, Page 22.
NOTE
In general, the rotor identification plate is no longer visible after moun-
ting. This is why we include with the rotor additional stickers with the
important ratings, which you can attach to the stator or any other rele-
vant test-bench components. You can then refer to them whenever there
is anything you wish to know, such as the calibration signal.
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Fixing screw (10.9); comply with
maximum thread reach Y!
Hexagon-socket screw (Z)
DIN EN ISO 4762 (10.9)
Flange A
Fig. 4.4: Screwed joint of the rotor
1. Use DIN EN ISO 4762 hexagon-socket screws, property class 10.9 of
the appropriate length (depending on the connection geometry, see
Table 4.1) to screw-fasten flange A.
We recommend fillister-head screws DIN EN ISO 4762 or similar, blacke-
ned, smooth-headed, permitted size and shape variance in accordance
with DIN ISO 4759, Part 1, product class A.
WARNING
With alternating load: Use a screw locking device (e.g. LOCTITE no. 242)
to glue the screws into the counter thread to exclude a pretension loss
due to screw slackening.
2. Fasten all screws with the specified torque (Table 4.1).
3. Now remove the transportation and assembly lug(s).
4. For further mounting of the shaft run, there are corresponding threaded
bores on flange B. Also use screws of property class 10.9 and fasten with
the torque specified in Table 4.1.
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CAUTION
With alternating loads, use screw locking device to glue into place the
connection screws. Guard against contamination from varnish frag-
ments.
It is essential to keep to the maximum thread reach as specified in
Table 4.1 ! Otherwise torque shunt may cause extensive measurement
errors or the transducer may be damaged.
Measuring
range
(NVm)
Fastening
screws (Z)1) Fastening screws
Resistance class Maximum thread reach
(Y) of screws in flange
B
(mm)
Prescribed
tightening torque
(NVm)
15
20
25 M20 x 2.5 30 400
30
40
45 M20 x 2.5 10.9 40 560
50
60
70
80 M22 x 2.5 45 760
Table 4.1: Fastening screws
1)DIN EN ISO 4762; black/oiled/mtot=0.125
4.6 Installing the stator
On delivery, the stator has already been installed and is ready for operation.
The antenna segments can be separated from the stator, for example, for
maintenance or to facilitate stator mounting. To stop you modifying the center
alignment of the segment rings opposite the base of the stator, we recom-
mend that you separate only one antenna segment from the stator.
If your application does not require stator disassembly, proceed as described
in sections 2., 6., 7. and 8.
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Version with speed measuring system
As the speed sensor includes the slotted disc, it is not possible to move the
stator axially over the pre-assembled rotor. In this case, you should also com-
ply with Chapter 4.8.
fan–type lock washer
Fig. 4.5: Screwed joints of the antenna segments
1. Slacken and remove the screwed joints (M4) on one antenna segment.
Make sure that the fan-type lock washers are not lost.
2. Use an appropriate foundation plate to install the stator housing in the
shaft run such that there is sufficient possibility for horizontal and vertical
adjustments. Do not yet fasten the screws.
3. Now mount the antenna segment removed under point 1. back on the sta-
tor with two hexagon-socket screws and the fan-type lock washers. Make
sure that none of the fan-type lock washers necessary for a defined con-
tact resistance are missing (see Fig. 4.5). Do not yet fasten the screws.
4. Install the two antenna segments’upper connection screw such that the
antenna ring is closed. Also pay attention to the fan-type lock washers.
5. Now fasten all antenna-segment screw fastenings with a starting torque of
5 N⋅m.
6. Align antenna and rotor such that the antenna encloses the rotor coaxially.
Please observe the permissible alignment tolerances specified in the spe-
cifications.
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20 T10FM
HBM B 23.T10FM.10 en
7. Fasten the stator-housing screwed joints.
8. Make sure that the opening in the lower antenna-segment
section is free from electroconductive foreign substances.
CAUTION
To make sure that they function perfectly, the fan-type lock washers
(A5,1–FST DIN 6798 ZN/galvanized) must be replaced after the screwed
joint of the antenna has been detached three times.
4.7 Mounting the clamping part
Depending on the operating conditions, the antenna ring may be excited to vi-
brate. This effect is dependent on
•the speed,
•the antenna diameter (depends in turn on the measuring range),
•the construction of the machine foundations.
To avoid vibrations, a clamping part with an extension is enclosed with the tor-
que flange enabling the antenna ring to be supported.
Support supplied by customer
Clamping part
Antenna ring
Extension
Fig. 4.6: Supporting the antenna ring
Opening
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