HBM CMA Series User manual
Operating Manual | Bedienungsanleitung |
Manuel d'emploi | Istruzioni per l'uso
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CMA
Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
www.hbm.com
Mat.: 7-2001.2559
DVS: A02559_04_YI0_01 HBM: public
09.2018
EHottinger Baldwin Messtechnik GmbH.
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Änderungen vorbehalten.
Alle Angaben beschreiben unsere Produkte in allgemeiner
Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits
garantie dar.
Sous réserve de modifications.
Les caractéristiques indiquées ne décrivent nos produits
que sous une forme générale. Elles n'impliquent aucune
garantie de qualité ou de durablilité.
Con riserva di modifica.
Tutti i dati descrivono i nostri prodotti in forma generica e non
implicano alcuna garanzia di qualità o di durata dei prodotti
stessi.
Operating Manual | Bedienungsanleitung |
Manuel d'emploi | Istruzioni per l'uso
English Deutsch Français Italiano
CMA
2A02559_04_YI0_01 HBM: public CMA
English
1 Safety instructions 4........................................
2 Markings used 7............................................
2.1 Symbols on the device 7......................................
2.2 The markings used in this document 8..........................
3 Scope of supply and accessories 9..........................
4 Introduction 11..............................................
5 Conditions on site 13........................................
5.1 Ambient temperature 13.......................................
5.2 Moisture and humidity 14......................................
6 Mounting 15.................................................
7 Electrical connection 16......................................
8 Start‐up 19..................................................
8.1 TEDS transducer identification 21...............................
8.1.1 Hierarchy of rights for TEDS 21.................................
8.1.2 Content of the TEDS module as defined in IEEE 1451.4 22.........
8.2 Replacing measuring chain components 25......................
8.3 Parallel connection of sensors 26...............................
9 Tips regarding piezoelectric measurement technology 28......
9.1 Functionality of piezoelectric sensors 28.........................
9.2 Available models and information on installation 30................
9.2.1 CFT force transducer 30.......................................
9.2.2 CFW force washer 30.........................................
9.3 Information about the charge amplifier and electrical connection 32..
9.4 Thermal influences 34.........................................
9.5 Mechanical influences 35......................................
9.6 Selection of components 37....................................
Safety instructions
4A02559_04_YI0_01 HBM: public CMA
1 Safety instructions
Appropriate use
The device is to be used exclusively for measurement tasks and directly
related control tasks within the application limits detailed in the specifications.
Use for any purpose other than the above is deemed to be non‐designated
use.
Any person instructed to carry out installation, commissioning or operation of
the device must have read and understood the Operating Manual and in
particular the technical safety instructions.
In the interests of safety, the device should only be operated by qualified
personnel and as described in the Operating Manual. It is also essential to
comply with the legal and safety requirements for the application concerned
during use. The same applies to the use of accessories.
The device is not intended for use as a safety component. Please also refer to
the section: “Additional safety precautions". Proper and safe operation requires
proper transportation, correct storage, siting and mounting, and careful
operation.
Operating conditions
SProtect the device from direct contact with water.
SProtect the device from moisture and weather such as rain or snow. The
protection class according to DIN EN60529 is IP65 when all cables are
connected and unused connections are fitted with protective caps.
SDo not expose the device to direct sunlight.
SThe device connection cables must only be installed inside buildings, and
must not exceed 30 m in length.
SComply with the maximum permissible ambient temperatures and the data
on maximum humidity as stated in the specifications.
SThe device must not be modified from the design or safety engineering
point of view except with our express agreement. In particular, any repair or
soldering work on motherboards (exchanging components) is prohibited.
When exchanging complete modules, use only original parts from HBM.
Safety instructions
CMA A02559_04_YI0_01 HBM: public 5
SThe device is delivered from the factory with a fixed hardware and software
configuration. Changes can only be made within the possibilities
documented in the manuals.
SThe device is maintenance free.
SPlease note the following points when cleaning the housing (see also
Chapter 10, Page 39):
- Disconnect the device from all current and voltage supplies before
cleaning it.
- Clean the housing with a soft, slightly damp (not wet!) cloth. Never use
solvent as this could damage the labeling or the housing.
- When cleaning, ensure that no liquid gets into the device or connections.
SIn accordance with national and local environmental protection and material
recovery and recycling regulations, old equipment that can no longer be
used must be disposed of separately and not with normal household
garbage, see Chapter 11, Page 40.
Qualified Personnel
Qualified persons means persons entrusted with the installation, fitting,
commissioning and operation of the product who possess the appropriate
qualifications for their function.
This includes people who meet at least one of the three following requirements:
SKnowledge of the safety concepts of measurement and automation
technology is a requirement and as project personnel, they must be familiar
with these concepts.
SAs measurement or automation plant operating personnel, they have been
instructed how to handle the machinery. They are familiar with the operation
of the equipment and technologies described in this documentation.
SAs commissioning engineers or service engineers, they have successfully
completed the training to qualify them to repair the automation systems.
They are also authorized to activate, ground and label circuits and
equipment in accordance with safety engineering standards.
Safety instructions
6A02559_04_YI0_01 HBM: public CMA
Working safely
SThe device must not be directly connected to the power supply system. The
supply voltage must be between 10 and 30 VDC.
SError messages should only be acknowledged once the cause of the error
is removed and no further danger exists.
SMaintenance and repair work on an open device with the power on may
only be carried out by trained personnel who are aware of the dangers
involved.
SAutomation equipment and devices must be designed in such a way that
adequate protection or locking against unintentional actuation is provided
(e.g. access checks, password protection, etc.).
SFor those devices operating in networks, safety precautions must be taken
both in terms of hardware and software, so that a line break or other
interruptions to signal transmission do not cause undefined states or loss of
data in the automation device.
Additional safety precautions
Additional safety precautions to meet the requirements of the relevant national
and local accident prevention regulations must be taken in plants where
malfunctions could cause major damage, loss of data or even personal injury.
The scope of supply and performance of the device covers only a small area of
measurement technology. Before starting up the device in a system, a project
planning and risk analysis must first be implemented, taking into account all the
safety aspects of measurement and automation technology so that residual
dangers are minimized. This particularly concerns personal and machine
protection. In the event of a fault, the relevant precautions must establish safe
operating conditions.
General dangers of failing to follow the safety instructions
The device is state of the art and reliable. The device may give rise to residual
dangers if it is inappropriately installed and operated.
Markings used
CMA A02559_04_YI0_01 HBM: public 7
2 Markings used
All trademarks and brands used in this document are trade names and/or
trademarks belonging to the respective product or the manufacturer/owner.
HOTTINGER BALDWIN MESSTECHNIK GMBH does not lay claim to any
other than their own trade names/trademarks.
2.1 Symbols on the device
CE mark
The CE mark enables the manufacturer to guarantee that
the product complies with the requirements of the
relevant EC directives (the Declaration of Conformity can
be found at http://www.hbm.com/HBMdoc).
Statutory waste disposal mark
The electrical and electronic devices that bear this
symbol are subject to the European waste electrical and
electronic equipment directive 2002/96/EC. The symbol
indicates that, in accordance with national and local
environmental protection and material recovery and
recycling regulations, old devices that can no longer be
used must be disposed of separately and not with normal
household garbage, see also Chapter 11, page 40.
Markings used
8A02559_04_YI0_01 HBM: public CMA
2.2 The markings used in this document
Important instructions for your safety are specifically identified. It is essential to
follow these instructions in order to prevent accidents and damage to property.
Symbol Significance
Notice This marking draws your attention to a situation in
which failure to comply with safety requirements can
lead to damage to property.
Important
This marking draws your attention to important
information about the product or about handling the
product.
Tip
This marking indicates application tips or other
information that is useful to you.
Information
This marking draws your attention to information
about the product or about handling the product.
Emphasis
See….
Italics are used to emphasize and highlight text and
references to other chapters and external documents.
Scope of supply and accessories
CMA A02559_04_YI0_01 HBM: public 9
3 Scope of supply and accessories
Scope of supply
Order no.
1-CMA1 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 1000pC
1-CMA2 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 2000pC
1-CMA5 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 5000pC
1-CMA20 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 20000pC
1-CMA39 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 39500pC
1-CMA158 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 158300pC
1-CMA210 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 210500pC
1-CMA287 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 287000pC
1-CMA482 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 482000pC
1-CMA2000 Single‐channel charge amplifier for piezoelectric sensors,
measuring range 2000000pC
1-CMA5000/2 Single‐channel charge amplifier for up to 2 piezoelectric
sensors connected in parallel, measuring range 5000000pC
Scope of supply and accessories
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Accessories
Order no.
1-KAB168-5 8‐wire cable to the voltage supply and processing electronics,
M12 x 1 cable plug, 5 m long, free ends
1-KAB168-20 8‐wire cable to the voltage supply and processing electronics,
M12 x 1 cable plug, 20 m long, free ends
1-KAB143 Sensor connection cable, coaxial, socket 10-32 UNF at both
ends, available in 2m, 3 m and 7m lengths
1-KAB145 Sensor connection cable, coaxial, socket 10-32 UNF at both
ends, available in 0.2m and 3 m lengths, robust design
1-CSB4/1 Summing box CSB4/1 with protective caps
Introduction
CMA A02559_04_YI0_01 HBM: public 11
4 Introduction
Piezoelectric charge amplifiers of the CMA type series are suitable for
measuring with piezoelectric sensors. The CMA amplifies the electric charges
to a proportional output signal of -10 …+10VDC (see manufacturing certificate
for accurate data). You can measure dynamic and quasi‐static forces with
great accuracy in this way.
SThe compact design amplifiers have good immunity from interference.
SYou can change the functions of the charge amplifier via the MEASURE /
RESET and RANGE 1 / RANGE 2 inputs.
SThe charge amplifier is fitted with a TEDS module (Transducer Electronic
Data Sheet).
SThe CMA5000/2 version allows you to connect two amplifiers in parallel
(one channel for both sensors).
In keeping with the choice of measuring range (RANGE 1/ RANGE 2), the valid
TEDS information for the particular measuring range is forwarded to the
downstream evaluating electronics, if they are TEDS‐compliant. The “High
Level Voltage" template is used, see Chapter 8.1, Page 21.
Piezoelectric force
transducer CMA charge amplifier
Supply voltage
18 0 30VDC
RANGE 1 / RANGE 2
MEASURE / RESET
Output voltage
-10 …+10VDC
TEDS
0VDC
Only for CMA5000/2
Fig. 4.1 CMA block diagram
Introduction
12 A02559_04_YI0_01 HBM: public CMA
The specifications list the permissible limits for mechanical, thermal and
electrical stress. It is essential to take these limits into account when planning
the measuring set‐up, during installation and, ultimately, during operation.
Conditions on site
CMA A02559_04_YI0_01 HBM: public 13
5 Conditions on site
Important
The insulation resistance is crucial for piezoelectric transducers; it should be no
greater than 1013 ohms.
To obtain this value, all the plug connections have to be kept thoroughly clean.
A positive or negative signal drift of the output signal indicates insufficient
insulation resistance.
The plug connection contacts should therefore be cleaned with a clean,
lint‐free cloth (e.g. Non‐woven pad, HBM order no. 1-8402.0026) and
isopropanol, e.g. with IPA200 from RS Components. The cleaning agents used
to clean SG measuring points are not suitable!
See also Chapter 9 regarding piezoelectric measurement technology.
SProtect the device from direct contact with water.
SProtect the device from moisture and weather such as rain or snow. The
degree of protection according to DIN EN60529 is IP65 when all cables are
connected and unused connections are fitted with protective caps.
SDo not expose the device to direct sunlight
SThe device connection cables must only be installed inside buildings, and
must not exceed 30 m in length.
SThe temperature has little effect on the output signal, see also Chapter 9.4
“Thermal influences", Page 34.
5.1 Ambient temperature
The temperature has little effect on the output signal. Temperature‐related
measurement errors can be caused by cooling or heating on one side, e.g. by
radiant heat.
Conditions on site
14 A02559_04_YI0_01 HBM: public CMA
5.2 Moisture and humidity
Avoid moisture or a tropical climate. When the connection cable is properly
connected to a transducer and a charge amplifier, the degree of protection for
the charge amplifier is IP65 as per EN 60529.
Mounting
CMA A02559_04_YI0_01 HBM: public 15
6 Mounting
The charge amplifier can be mounted with two M3 bolts. The charge amplifier
can be mounted in any position.
The signal inputs and outputs are electrically isolated from the housing and the
CMA. So no isolating elements are necessary.
35
4
72
46
64
31
4
38
34.8
30.8
4a
46
57
4
49
38
Mounting example for CMA, dimensions in mm (1 mm = 0.03937 inches)
Metal
M3M3
CMA2 to CMA2000 CMA5000/2
Electrical connection
16 A02559_04_YI0_01 HBM: public CMA
7 Electrical connection
Only high‐insulation connection cables that generate little friction electricity
during movement must be used for piezoelectric sensors. A charge cable in
rugged design with metal jacket is available for applications in highly
contaminated environments or for increased mechanical stresses.
CMA charge amplifier
Example:
CFT piezoelectric
force transducer
Transducer
connection cable to
the charge amplifier
Bending radius connection cable
q10mm
The supply voltage, measurement signal, inputs and TEDS are connected to
the evaluating electronics via the 8‐pin M12 device plug.
The CMA1 to CMA2000 versions only have one input. Where necessary, use
the CSB4/1 summing box to connect up to four piezoelectric sensors in parallel
operation.
Notice
Tighten the swivel nut of the sensor cable with maximum 1.5Nm to prevent
damage to the connecting socket.
Two inputs are available on the CMA5000/2 and two sensors can be
connected. The sensors are switched in parallel electrically, i.e. the charges
are added. The following applies for the measurement result with force
sensors: The sum of the forces present at the sensors is measured. Switching
Electrical connection
CMA A02559_04_YI0_01 HBM: public 17
between measurements with sensor 1 and measurements with sensor 2 is not
possible as both sensors are always measured together.
Important
Fit the supplied cover if you only use one input on the CMA5000/2.
The CMA charge amplifier is designed for direct voltage operation (18 …
30VDC). The circuit is intended for operating with separated extra‐low voltage
(SELV circuit).
1
2
4
Supply voltage 0V (GND) .................
Output signal -10 …+10V ..................
RANGE 1 / RANGE 2 ......................
TEDS ..................................
MEASURE / RESET ......................
5
white
brown
green
yellow
gray
3KAB168
connection
cable wire
assignment
6
7
8
Ground for output signal ..................
Do not assign ! ..........................
Supply voltage 18 …30VDC 1) ................
pink
blue
red
M12 x 1, 8‐pin
1) Operating on a SELV circuit (separated extra‐low voltage)
Fig. 7.1 Pin assignment
The output signal is present at pin 5 and pin 6 (ground), and is electrically
isolated from the supply voltage and the control inputs. The RANGE 1/2,
MEASURE/RESET and TEDS control inputs, as well as the supply voltage, are
at the same potential (pin 1, supply voltage 0V). It is not necessary to ground
the housing.
Electrical connection
18 A02559_04_YI0_01 HBM: public CMA
Important
The cable shield must not be connected to the downstream evaluating
electronics.
Pin 7 is reserved exclusively for internal HBM use, and must not be assigned.
This manual suits for next models
11
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