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Micro Movements M1500 Series User Manual

Signal conditioning system
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M1500 User Guide
M1500 Series Signal
Conditioning System

User Guide

Issue 2 Jan 2002
Issued with Serial Number:........................
Micro Movements Ltd
The Centre
Reading Road
Eversley
Hampshire
RG27 0NB
United Kingdom
Telephone: +44 0118 973 0200
Facsimile: +44 0118 932 8872
email:
info@micromovements.co.uk
© 2002 Micro Movements Ltd Ver.2.0

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  • Page 1: User Guide

    User Guide Issue 2 Jan 2002 Issued with Serial Number:......Micro Movements Ltd The Centre Reading Road Eversley Hampshire RG27 0NB United Kingdom Telephone: +44 0118 973 0200 Facsimile: +44 0118 932 8872 email: info@micromovements.co.uk © 2002 Micro Movements Ltd Ver.2.0...
  • Page 2 M1500 User Guide © 2002 Micro Movements Ltd Ver 2.0...

  • Page 3: Table Of Contents

    M1560 Universal Input Signal Conditioner Board Descriptions Jumper Settings 3.2.1 Input Configuration Settings 3.2.2 Transducer Power Supply Settings 3.2.3 Calibration Settings Communications Protocol Specification SECTION 4 Accessories SECTION 5 RS232 Communication 5.1.1 Port Setup 5.1.2 Command Syntax Commands © 2002 Micro Movements Ltd Ver.2.0...
  • Page 4 M1500 User Guide © 2002 Micro Movements Ltd Ver 2.0...

  • Page 5: Functional Description

    In Test and Measurement applications it is often necessary to use sensors or transducers to translate a physical quantity into an electrical signal in order to utilise electronic methods for recording or analysing these physical entities. The Micro Movements M1500 Series Signal Conditioning System provides a complete solution.

  • Page 6: Sensor And Transducer

    ADC. Additionally most sensors require excitation in the form of a constant voltage or constant current to power them. The M1500 system provides all of these without the need for any external additional power. Page: 2 © 2002 Micro Movements Ltd Ver. 2.0...

  • Page 7: Filters

    ADC’s. Connection to other manufacturers devices can be implemented easily. For advice on suitable ADC’s the Micro Movements Application Support will be happy to assist and Micro Movements can supply appropriate cables for instant connection to most available ADC’s.

  • Page 8: Hardware Configuration

    As an example, using an M1500 Direct System and a MicroStar 4200 Series DAP board, it is possible to obtain sampling rates of over 50KHz on each sensor channel. For technical advice on this or any other application issue please contact Micro Movements Application Support. 1.2.

  • Page 9: Single Enclosure System

    The normal presentation of the M1500 is as shown in Figure 1.6. With mounting ears for installation in a 19” rack. Without mounting ears but with a carrying handle for free-standing installation. The unit is normally supplied with the power pack accepting a universal mains input. © 2002 Micro Movements Ltd Ver. 2.0 Page: 5...
  • Page 10 Figure 1.6. M1500 Closed Frame Enclosure The closed frame enclosure is also suited to OEM installations but is designed to accept the Micro Movements M1500 Power Pack. The Power Pack accepts a universal mains input with fusing, switching and filtering and generation of the required DC voltages for operating the M1500 System.

  • Page 11: Multiple Enclosure System

    ADC card and a second RS232 port. The only limit to the total number of 4-enclosure blocks is the capacity of the host computer and application software to support multiple ADC cards and RS232 ports. © 2002 Micro Movements Ltd Ver. 2.0 Page: 7...

  • Page 12: Wide Bandwidth System

    4 off 16 input ADC cards. The sampling rate is then determined solely by the ADC cards with no other limitations. Systems using the ‘Direct’ architecture can still be expanded as before and controlled by a single RS232 port for each block of 4 enclosures. Page: 8 © 2002 Micro Movements Ltd Ver. 2.0...

  • Page 13: System Hierarchy

    CH61,CH62 CH125,CH126 CH189,CH190 CH253,CH254 SLOT 16 CH63,CH64 CH127,CH128 CH191,CH192 CH255,CH256 Figure 1.10. M1500 System Channel Map The addressing is in logical order and also controls the signal routing and multiplexing order. © 2002 Micro Movements Ltd Ver. 2.0 Page: 9...
  • Page 14 The ‘position’ of a sensor within the encoding is determined entirely by the slot location in the enclosure. It is not necessary to manually select the address of a card, it is performed automatically. Page: 10 © 2002 Micro Movements Ltd Ver. 2.0...

  • Page 15: Product Part Numbers

    High Bandwidth option for M1560-D, covers all 4 channels (Specify Bandwidth up to 100KHz). M1590-01 LP Filter for M1560 (one required per sensor channel) Specify no. of Poles, characteristic and cut off frequency. © 2002 Micro Movements Ltd Ver. 2.0 Page: 11...
  • Page 16 Plug in calibration reference ½ bridge strain gauge (Specify resistance 120W, 350W, 1KW, other). C1508-4 Plug in calibration reference full bridge strain gauge (Specify resistance 120W, 350W, 1KW, other). C1509 Plug in calibration reference voltage source 1.000 volts. Page: 12 © 2002 Micro Movements Ltd Ver. 2.0...

  • Page 17: M1500 Series Enclosures

    M1500 User Guide Section 2 Section 2 2.0. M1500 Series Enclosures. 2.1. Overview The M1500 enclosures are available in Open Frame OEM, Closed Frame OEM and Benchtop formats. In each of the physical presentations, the enclosures, the facilities and functions are identical and can be supplied with either the Multiplexed Output or Direct Output options.

  • Page 18: External Triggering

    A voltage free contact closure. (Can accept Normally Open or Normally Closed) Jumper position allows the selection of trigger polarity. The bus-buffered trigger signal is then routed to the connectors, on the rear of the enclosure, that interface with the ADC in the host Page: 14 © 2001 Micro Movements Ltd...

  • Page 19: Jumper Configuration

    Figure 2.3. Position of jumpers and trigger type selection TRIGGER TYPE TTL or Pulse input up to 12 volts. Connect BNC to PL1 and ensure that RIO is removed. Contact Closure. Connect BNC to PL2 and fit RIO = 10KOhms. © 2001 Micro Movements Ltd Page: 15...

  • Page 20: Power Requirements

    +24 volts at 2.0 amps. Micro Movements Application Support can provide technical advice if required. For closed frame OEM enclosures and Benchtop enclosures fitted with the Micro Movements M1500 Power Pack, the only supply required is AC Mains - 95 - 260 V ac...

  • Page 21: Physical Dimensions

    M 1 5 6 0 M 1 5 6 0 Figure 2.4. Outline of M1500 Enclosure Height 135 mm - Standard 3U Depth 450 mm max Width 450 mm - Standard 19” rack width © 2001 Micro Movements Ltd Page: 17...

  • Page 22: External Connections (Standard)

    Although these are the only connections used internally to the M1500, the remaining pins are unterminated. Therefore any standard RS232C cable may be used even though it will make additional connections, they are ignored within the M1500 SIGNAL TO DATA ACQUISITION CARD Page: 18 © 2001 Micro Movements Ltd...

  • Page 23: Specification

    (part nos MSCBL 040-01 or MSCBL 041-01). Suitable cables are also available from Micro Movements Ltd (part no C1500/68). Micro Movements Ltd also provide cables for direct interconnection to a range of other Data Acquisition cards. Please consult Technical Support for details.
  • Page 24 M1500 User Guide Section 2 Page: 20 © 2001 Micro Movements Ltd...

  • Page 25: M1560 Universal Input Signal Conditioner

    M1560 can be computer controlled. On each card is a RISC processor which communicates with the necessary control functions on the card. Interface with the RISC processor is via RS232. The cards are designed to fit in a Micro Movements M1500 Series enclosure. Figure 3.1 M1560 Front Panel 3.1 Board Description...
  • Page 26 All 4 channels must be selected for the same transducer supply method, as current or voltage, on any one card although different cards can be set for different methods as well as for different values an type of transducer or input. Page: 22 © 2002 Micro Movements Ltd Ver 2.0...
  • Page 27 The example shown above is with a bridge input but the configuration is applicable whichever type of transducer or signal input is being used. INPUT SELECT Zero Comms code: 254 Figure 3.4 Absolute Zero configuration © 2002 Micro Movements Ltd Ver 2.0 Page: 23...
  • Page 28 3.2) they also route the transducer supply to the input selector in the correct manner to enable measurement of the value. For Voltage transducer supply the resulting connections are shown in Figure 3.7.. Page: 24 © 2002 Micro Movements Ltd Ver 2.0...

  • Page 29: Jumper Settings

    M1500 enclosure. When a card is fitted, the RISC processor gathers the address from the backplane and takes this as its own © 2002 Micro Movements Ltd Ver 2.0 Page: 25...

  • Page 30: Input Configuration Settings

    Full bridge strain gauge: Fit jumper G only 1/2 bridge strain gauge: Fit jumpers A, B and G 1/4 bridge 120 Ohm strain gauge: Fit jumpers A, B, E and G Page: 26 © 2002 Micro Movements Ltd Ver 2.0...

  • Page 31: Transducer Power Supply Settings

    Select Select R = 5.00 V S = 500 mV V = Shunt Calibrate T = 50 mV W = Voltage Calibrate U = 5.0 mV Figure 3.12. Calibration Jumper Settings © 2002 Micro Movements Ltd Ver 2.0 Page: 27...

  • Page 32: Communications Protocol

    Where board address will be a number between 0 - 63 For example: (33 is the ASCII value for ‘!’.) The return from the card has the following syntax <board address> < ! > <Serial No.A> <Serial No.B> <Status> Page: 28 © 2002 Micro Movements Ltd Ver 2.0...

  • Page 33: Input Connections

    Ain - Aex - Bex + Bin + Baux Bin - Bex - Cex + Cin + Caux Cin - Cex - Dex + Din + Daux Din - Dex - © 2002 Micro Movements Ltd Ver 2.0 Page: 29...
  • Page 34 Fit Internal Completion Jumpers Connections for 1/4 Bridge Transducers, 2-Wire connection FIT LINK (Strain Gauges) Fit Internal Completion Jumpers Connections for 1/4 Bridge Transducers, 3-Wire connection (Strain Gauges) Fit Internal Completion Jumpers Page: 30 © 2002 Micro Movements Ltd Ver 2.0...
  • Page 35 CURRENT SUPPLY AND AC COUPLING FIT LINK JUMPER REQUIRED Connections for Voltage Input (+/- 10 volts max) Connections for Current Input FIT INTERNAL CURRENT SENSE RESISTOR (+/- 10 volts max compliance) © 2002 Micro Movements Ltd Ver 2.0 Page: 31...

  • Page 36: Specification

    Current through user fitted series resistor (max 50mA) Cal: Single value voltage. Activated by RS232 command Absolute zero: shorted input, activated by RS232 command Zero/ offset: Software controlled ± full scale output Page: 32 © 2002 Micro Movements Ltd Ver 2.0...
  • Page 37 M1500 User Guide. Section 3 © 2002 Micro Movements Ltd Ver 2.0 Page: 33...

  • Page 38: Accessories

    M1500 User Guide. Section 3 Page: 34 © 2002 Micro Movements Ltd Ver 2.0...

  • Page 39: Rs232 Communication

    Byte 2 : command 2 : data 1 Byte 3 : data 1 3 : data 2 Byte 4 : data 2 4 : data 3 Byte 5 : data 3 5 : data 4 © 2001 Micro Movements Ltd Page: 33...

  • Page 40: Command Syntax

    These commands address each board individually. Page: 34 © 2001 Micro Movements Ltd...
  • Page 41 The Status can be any number beween 0 and 255. This is a return of any status setting switches from the individual card. See the relevent Signal Conditioning Card Section of the User Guide for details on the interpretation of the status number. © 2001 Micro Movements Ltd Page: 35...
  • Page 42 0110 1110 4000 0111 1111 8000 The gain data bytes are separated into nibbles of 4 bits. Therefore, the gain bytes are constructed as follows: <Gain 1 Gain 2> <Gain 3 Gain 4> Page: 36 © 2001 Micro Movements Ltd...
  • Page 43 When a send is initiated the card will set all gains to x100, all filters to ON and all supplementary outputs to logic 0. The card will respond to a Set command with an echo of the command it received which can be used by Host Software to © 2001 Micro Movements Ltd Page: 37...
  • Page 44 M1500 User Guide Section 5 Page: 38 © 2001 Micro Movements Ltd...

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