HBM MVD2555 Operating Manual
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HBM MVD2555 Operating Manual

Measuring amplifier for instrument panel mounting
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Operating manual
Measuring amplifier for
instrument panel mounting
MVD2555
A0104-5.6 en

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Summary of Contents for HBM MVD2555

  • Page 1 Operating manual Measuring amplifier for instrument panel mounting MVD2555 A0104-5.6 en...

  • Page 3: Table Of Contents

    MVD2555 Contents Page Safety instructions ..........
  • Page 4 MVD2555 Button functions in programming mode ....4.4.1 Changing from ”Measuring” operating mode to ”Programming” .......

  • Page 5: Safety Instructions

    Appropriate use The MVD2555 with the connected transducers may be used for measurement and directly related control and regulation tasks, only. Any other use is not appropriate. To ensure safe operation, the transducer may only be used according to the specifications given in this manual.
  • Page 6 MVD2555 General dangers in the case of non-observance of the safety instructions The MVD2555 complies with the state of the art and is operationally reliable. If the device is used and operated inappropriately by untrained personnel, residual dangers might develop.
  • Page 7 Meaning: 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 is available at http://www.hbm.com/HBMdoc). Symbol: Meaning: Statutory marking requirements for waste disposal National and local regulations regarding the protection of the environment and recycling of raw materials require old equipment to be separated from regular domestic waste for disposal.
  • Page 8 Do only quit error messages if the reason for the error has been eliminated and there is no more danger. Reconstruction and modifications HBM’s express consent is required for modifications regarding the MVD2555’s construction and safety. HBM does not take responsibility for damage resulting from unauthorized modifications.

  • Page 9: Introduction

    MVD2555s (at a common RS485 bus) All the commands needed for device setup over the serial interface and for querying the measured values are listed and described in a separate Operating Manual document ”Operating the MVD2555 by Computer” . A0104-5.6 en...

  • Page 10: Block Diagram

    PK-232 or 5 outputs/ PK-485 6 inputs Fig. 1.1 MVD2555 block diagram Mounting 2.1 Pre-installation notes, factory settings Before installing the device, check the parameters set at the factory, as the elements for selecting the analogue output signal (current/voltage output) and for setting synchronization, are located on the motherboard.

  • Page 11: Changing The Factory Settings

    MVD2555 Master/Slave setting: Transformer Master: ST13 ST14 ST15 Slave: ST11 ST13 ST14 ST15 Fuses (slow-blowing) ST10 Analogue output: ST13 Current ST100 ST11 Voltage ST100: for attaching spare bridges ST9 and ST10:for options ST11 Fig. 2.1: Location of jumpers on motherboard 2.2 Changing the factory settings...

  • Page 12: Installing The Amplifier In A Panel-Frame

    MVD2555 2.3 Installing the amplifier in a panel-frame The MVD2555 is designed to be installed in panel-frames, in accordance with DIN43700. Installation steps: D Remove the fastening strap. D Insert the housing into the cutout in the panel-frame from the front.

  • Page 13: Connections

    3.1 Connecting the voltage supply Check that the mains voltage of the device (details on the back of the device) matches the supply voltage. If this is not the case, please contact the ap- propriate HBM branch or HBM representative. interface port PK485...

  • Page 14: Connecting Transducers

    MVD2555 3.2 Connecting transducers The following transducer types can be connected to the device: D S.G. full and half bridge transducers D Inductive full and half bridge transducers D Potentiometric and piezoresistive transducers D LVDT (Linear Variable Differential Transformer) The connection is made using a 15-pin D-Sub connector on the back panel of the housing, labelled BU1 (cable end connector: DB-15P, Order No.
  • Page 15 WH= white; BK= black; BU= blue; RD= red; YE= yellow; GN= green; GY= gray Fig. 3.4: Transducer connection in four-wire technique NOTE To connect the transducers, use HBM standard cable. If you use another shielded, low-capacitance measurement cables, connect the shielding of the transducer cable to the connector housing, in accordance with HBM Greenline information (see http://www.hbm.com/Greenline).

  • Page 16: Analogue Output

    MVD2555 3.3 Analogue output The analogue output signal is available as voltage ("10 V) or as current ("20 mA or 4 ... 20 mA) at terminals 1 and 2. To choose current or voltage, use the jumpers on the amplifier motherboard, as described in Chapter 2.1.

  • Page 17: Synchronization

    MVD2555 MVD 2555 Relay max. 0.5 A max. 0.5 A 24 V* 24 V* 0 V* 0 V* Fig. 3.6: Output assignments The control inputs and outputs are available at the terminal strip socket (9-pin) and are potential-separated by optical couplers.

  • Page 18: Setting The Reading Angle Of The Display

    Chapter 4.4.11. When connecting a computer, it is possible to enter into dialogue with the MVD2555. You can use control commands to make all the device settings and query the measured values. An overview of the interface commands has been compiled in another part of the Operating Manual ”...

  • Page 19: Setting Up And Operation

    (panel-frame amplifier and transducer) are listed below, so that you can carry out an initial function test of all components. The description basically covers adapting the MVD2555 to the transducer type to be used. We also warn about certain errors which can typically occur during commissioning.
  • Page 20 MVD2555 NOTE If the error message “OVFL B, OVFL N,” appears, you must adjust the amplifier for your type of transducer. The steps to take for each amplifier are described below. D To get from measuring mode to device setup mode, press for about 2 s.
  • Page 21 MVD2555 Transducer types: S.G. force transducer: Adaptation: Example Transducer type: Full bridge/2 mV/V=20 kN Excitation: 2.5 V Input: 4 mV/V Calibration: Unit, nominal value/decimal point: 20.000 kN Measuring range: 2 mV/V Inductive displacement transducer: Adaptation: Example Transducer type: Half bridge, 10 mV/V...
  • Page 22 MVD2555 Key to symbols select number Group old setting Parameter new value change value MEAS. MODE Press for 2 sec Programming mode DIALOG Language Language ENGL DEUTSCH Press twice ADAPTION transducer adaption continued on next page A0104-5.6 en...
  • Page 23 MVD2555 S.G. Inductive Piezoresistive Potentiometric force transducer displacement transducer transducer transducer (= factory settings) TRANSD. TYPE Transducer type LVDT HALF BRG. FULL BRG. HALF BRG. HALF BRG. EXCITATION Setting the excitation voltage 1.0 VOLT 1.0 VOLT 2.5 VOLT 2.5 VOLT...
  • Page 24 MVD2555 S.G. Inductive Piezoresistive Potentiometric force transducer displacement transducer transducer transducer (= factory settings) UNIT Measured quantity unit ....NOM. VALUE Nominal value input ....20000 kN 20000 mm 30000 bar 10000 mm press four times (Skip decimal point, digit step and zero value) dEc.P...
  • Page 25 MVD2555 Switch to measuring mode Press for 2 s SAVE The settings are saved in parameter set 1 and the device switches to measuring mode. You can now run an initial function test. NOTE The settings are only stored power fail safe, if they were saved as one of the parameter sets.

  • Page 26: Control Concept And Functional Overview

    MVD2555 4.2 Control concept and functional overview The control concept makes a distinction between two types of button functions: - Buttons that are operative during measuring mode and - Buttons needed for programming. Measured value display, parameter presentation Button Measuring mode...

  • Page 27: Button Functions In Measuring Mode

    MVD2555 4.3 Button functions in measuring mode Meaning Switch from measuring operating mode to programming (and vice versa) by pressing for approx. 2 s. Set the limit values LV1 ... 4 (see from Page 28) The additional parameters of the limit switches such as hysteresis, direction etc., are unchanged.

  • Page 28: Querying And Setting Limit Values In Measuring Mode

    MVD2555 4.3.1 Querying and setting limit values in measuring mode You have several options available when choosing the limit values (in measuring mode): a: Numerical value entry for limit values b: Apply input signal as limit value c: Fast search (keep arrow keys pressed for several seconds) MEAS.

  • Page 29: Button Functions In Programming Mode

    MVD2555 4.4 Button functions in programming mode In this operating mode, you can make all the settings for using the amplifier in your application. The parameters are collected into groups. Significance of the buttons: Change operating mode, select group (e.g. CALIBR.) Parameter selection (e.g.

  • Page 30: Changing From "Measuring" Operating Mode To "Programming

    MVD2555 4.4.1 Changing from ”Measuring” operating mode to ”Programming” If the password is 0000 (factory setting), the device changes the operating mode. Press for 2 s If a password has already been entered (and is not DIALOG 0000), CODE appears, that is, the password has to be entered if you wish to continue ”Programming”.

  • Page 31: Programming

    MVD2555 4.4.2 Programming Typical programming mode operations Select the value/ Enter a numerical value as a Apply a signal produced by the parameter from a given table parameter transducer when a defined load- (example DIALOGUE LAN- (example CALIBR./ ing occurs.

  • Page 32: Switching From "Programming" Mode To "Measuring

    MVD2555 4.4.3 Switching from ”Programming” mode to ”Measuring” When the parameters are changed, you are asked whether the modified parameters are to be saved power fail safe. Press for 2 s SAVE Not saved power fail safe SAVE DONE Saved power fail safe in...

  • Page 33: Overview Of All Groups And Parameters

    MOTION DIG TARE VALUE LV BUTT PRINT GROSS CONTACT 4 BUTT. SIGN MOTION OUT CONTACT 5 PRINT NET CONTACT 6 PRINT MAX REMOTE PRINT MIN PRINT PP PRINT LVS PRINT OVERL PRINT PAR. ZERO/TARE to next group A0104-5.6 en MVD2555...

  • Page 34: Setting All Parameters

    4.5.1 Setting all parameters 2sec MVD2555 Password Meas. value 00000 Groups ADAPTATION PARAM. SET +0000 CODE DIALOG DEUTSCH PARAM PARAM Enter password PARASET 1 _ _ _ _ ENGLISH PARASET 2 press twice LANGUAGE FRANCAIS PARASET 3 RECALL ITALIANO PARASET 4...
  • Page 35 MVD 2555 Groups PARAM. SET PV STORE ADAPTATION CALIBR. LIMIT VALUE 1 ... 4 FULL BRG. HALF BRG. PARAM LVDT PARAM PARAM TRANSDUCER UNIT ENABLE 2.5 VOLT EXCITATION 1.0 VOLT GROSS.VALUE SOURCE NOM. VALUE +010 000 V NET VALUE 4 mV/V INPUT PVS1 MAX 40 mV/V...
  • Page 36 MVD2555 Groups LIMITVAL.1 ... 4 ADD. FUNCT. IN/OUT PV STORE PARAM PARAM PARAM GROSS.VALUE NET VALUE 9600 BAUD PVS1 MAX SOURCE UA PVS OFF 4800 BAUD ENABLE PVS2 MIN PVS ON SERIAL NO. 2400 BAUD PVS3 PP 1200 BAUD 600 BAUD...

  • Page 37: Dialogue

    When switching from Measuring to Programming, you are asked for a password (see Page 30). The password prevents unauthorized operation of the MVD2555. Parameters can only be changed if the valid password is entered. The password can only be changed if the old password is known.

  • Page 38: Load/Save In Parameter Set (Param. Set)

    MVD2555 4.5.3 Load/Save in parameter set (PARAM. SET) The current device amplifier settings can be saved power fail safe in eight parameter sets and later queried. When switching from the programming operating mode to measuring mode, you will be asked whether or not the change is to be saved. This is described in Chapter 4.4.3 .
  • Page 39 MVD2555 AUTOCAL: Depending on the application and on the stability requirement, you can start an autocalibration cycle. This lets you correct zero point and full scale value drift and the long-term constancy of the measuring amplifier. Possible settings: Autocalibration switched on...
  • Page 40 MVD2555 MOTION CNT (Motion count) To activate the motion count, you must set the number of measurements. During these measurements, the measured value must fall within the given tolerance for ”standstill” to be reported. (for sampling rate, see table on Page 39).

  • Page 41: Calibration (Calibr.)

    MVD2555 4.5.5 Calibration (CALIBR.) UNIT You can select the following units: Selectable unit μm M/SS KPAS HPAS μm/m INLB FTLB mBAR mV/V INCH ---- NOM. VALUE You can adjust the nominal value. Specify the nominal value including the desired decimal places.

  • Page 42: Limit Switches 1

    MVD2555 ZERO VALUE The maximum zero balance range matches the particular maximum measuring range in the following table. RANGE: Sets a full scale value (unit mV/V). If this value lies outside the input range, the minimum or maximum possible value is accepted.
  • Page 43 MVD2555 ENABLE Disable individual limit switches Enable individual limit switches SOURCE Limit switch evaluated: GROSS.VALUE Gross NET VALUE PVS1 MAX Store for maximum values PVS2 MIN Store for minimum values PVS3 PP Store for peak-to-peak value SWITCH DIR. Specify here the switch direction or the working direction (see Fig. 4.2.).

  • Page 44: Set Peak Value Store (Pv Store)

    MVD2555 LV BUTT: Setting the limit value with ENABLED possible LOCKED Setting the limit value with locked 4.5.7 Set peak value store (PV STORE) Two peak value stores are available to you for monitoring processes. The following allocation has been made:...
  • Page 45 MVD2555 If the stores are operated as peak value stores, it is possible to display an envelope by setting a discharge rate. This discharge rate affects all peak value stores. Discharge rate: good Discharge rate: too low Discharge rate: too high Envelope function Fig.

  • Page 46: Inputs And Outputs (In/Out)

    MVD2555 4.5.8 Inputs and outputs (IN/OUT) In this menu, you can make the required settings for the MVD2555 input signal, the analogue output and the remotes. SOURCE UA: The following signals can be specified as the source of the analogue signal: Gross GROSS.VALUE...
  • Page 47 Internal zero point ZEROSIGNAL To display the measurement signal, you must return to measuring mode. CONTACT 1 ... 6: Remotes are available on the connector strip for controlling MVD2555 functions. The pin assignment or allocation of the remotes is freely configurable. Functions...

  • Page 48: Additional Functions (Add. Funct)

    In order to provide better support should you experience technical problems, the firmware status is indicated by this parameter. If you have any questions for our service department or HBM branch, giving the existing firmware version will enable us to provide effective support.
  • Page 49 MVD2555 PARITY: The following settings are possible: Selectable parity EVEN ODD PAR. NO PAR. PAR. Stop bit: The following settings are possible: 1 STOPBIT 2 STOPBIT COMM. ADDR: Input the device address Selectable device addresses 00 to 31 Address selectable only for RS485 version; for RS232, set address to 1...
  • Page 50 MVD2555 PRINT LVS: Output limit switch states over serial interface: OFF/ON PRINT OVERL Adjust repetition rate. Heading comprising the source of the measured value and the unit. = no heading (measured value only) = Heading always 10 = Heading every 10 times etc.

  • Page 51: Example

    A PLC takes over the control of the process. As well as the control commands for the press, it gives the MVD2555 a start signal to begin the pressing cycle and once the process has finished, logically links the limit switch outputs to the ”Good/Bad evaluation”.

  • Page 52: Wiring Diagram

    MVD2555 Wiring diagram: MVD2555 Supply 0 / 24 V Emergency shutdown press C9B/10 kN Logical PVS1 evaluation of limit switches 1 and 2 START CONTACT 1 / PVS1 INST Serial interface for document printer, host computer, PLC, etc. Time chart:...
  • Page 53 MVD2555 Evaluation of limit value message by the PLC: Good Reject Choose the following settings: Checks whether the lower force limit has been reached. The input signal is the output of the peak value store (maximum value). If limit LV1 is exceeded, a High signal is generated.
  • Page 54 MVD2555 Key to symbols select number Group old setting Parameters new value change value MEAS. MODE press for 2 sec Programming mode Dialogue MEAS. MODE LANGUAGE ENGLISH DEUTSCH PASSWORD Password query (see Page 30) 0000 1510 A0104-5.6 en...
  • Page 55 MVD2555 Change group press twice ADAPTATION _ _ _ _ Transducer TRANSDUCER 100 Hz BE type LVDT Change group press once FULL BRG. CALIBR. Amplifier adjustment Setting the EXCITATION Measured excitation UNIT quantity unit voltage 2.5 VOLT ..INPUT Input signal...
  • Page 56 MVD2555 dEc.P RANGE Range Decimal point input DEC. POINT Transducer signal in accordance with the ..desired display range 00.60000 mV/V 0000 Change group Set limit switches LIMITVAL.1 1 ... 4 Digit step input STEP dEc.P Limit switch locked or...
  • Page 57 MVD2555 SWITCH DIR. Effective direction LOGIC Remotes logic LOWER HIGHER ACTIVE.LOW ACTIVE.HIGH LEVEL dEc.P Limit value 1 Limit switch LV BUTT button function 0100 +003500 N NET VALUE ENABLED Hysteresis value dEc.P HYSTERESIS input Set limit switches 2, 3 and 4 accordingly ..
  • Page 58 MVD2555 Change group Change group press once Adjusting peak va- PV STORE lue stores IN/OUT I/Os Peak value store ENABLE Signal sources locked or enabled SOURCE UA selectable PVS OFF NET VALUE PVS ON GROSS.VALUE Input signal choice, PVS 1 INPUT...
  • Page 59 MVD2555 INPUT SIGN. Input signals ZEROSIGNAL MEAS.SIGNAL Pin assignment of remotes 1 ... 6 CONTACT 1 NO FUNCT. PVS1 INST press for 2 sec SAVE Query, whether changes are to be saved Save changes SAVE DONE press once Measuring mode...

  • Page 60: Error Messages

    MVD2555 Error messages Error message Cause Remedy The given value cannot be altered. Example: For unit V and mV/V, the nominal value setting is fixed at 10,000 OVFL B Gross value overflow OVFL N Net value overflow CAL.ERR Incorrect transducer/sensor...

  • Page 61: Specifications

    MVD2555 Specifications Type MVD2555 Accuracy class Mains connection/supply voltage 115/230, +6 %; -14 %; 48 ... 60 Power consumption, max. 230V T63mA L / 115V T125mA L Safety fuse (slow blowing) Amplifier Carrier frequency 4800 " 0.32 Excitation voltage U ("5 %)
  • Page 62 MVD2555 Measurement frequency range Butterworth low-pass Nom. -1 dB -3 dB Rise Over- val fc Time Time shoot. about (Hz) (Hz) (Hz) (ms) (ms) 10 % 12.5 Bessel low pass Nom. -1 dB -3 dB Rise Over- val fc Time Time shoot.
  • Page 63 MVD2555 Max. permissible common-mode voltage "5 V Common-mode rejection typically 110 Max. differential voltage DC "10 Linearity variation typically 0.05 Long-term drift over 48 hours, Meas. range 2 mV/V Autocalibration on / off 30 minutes after switching on (warm-up time) μV/V...
  • Page 64 MVD2555 Control outputs (limit switch 1 ... 4, Warning V CTRL nominal voltage, external power supply permissible supply voltage range 11 ... 30 output current, max. short-circuit current, typ. unlimited short-circuit period isolation voltage, typ. Remote contacts Input voltage range, LOW 0 ...

  • Page 65: Keyword Index

    MVD2555 Keyword index adaptation, 38 hysteresis, 42 , 43 adapting to transducer, 38 additional functions, 48 autocalibration, 39 , 47 inductive displacement transducer, 23 input signal, 46 , 47 input signal for peak value store, 45 calibration, 41 inputs/outputs, 46...
  • Page 66 MVD2555 RS485, 9 net, 27 net value, 43 S.G. force transducer, 23 serial interface, 18 setting parameters, 34 output logic of the remotes, 43 step, 41 output signal, 46 stop bit, 49 switch direction, 43 synchronisation, 11 , 17 parameter, save, 32...
  • Page 68 Hottinger Baldwin Messtechnik GmbH 7-2002.0490 Postfach 10 01 51, D-64201 Darmstadt Im Tiefen See 45, D-64293 Darmstadt Tel.: +49 6151 803-0 Fax: +49 6151 8039100 Email: support@hbm.com Internet: www.hbm.com A0104-5.6 en...

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