Summary of Contents for Macro Sensors LVC-2500
- Page 1 LVC - 2500 Low Voltage Conditioner User Manual Manual Part No. 0653 0003 0000 Rev B...
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Page 2: Table Of Contents
Index Safety Information MATH Functions 1.1 Electrostatic discharge 4.1 MATH Introduction 4.2 MATH Set-up Procedure Installation 2.1 Mounting and Access Transducer Sensitivity 2.2 Connections and Link Identifi cation 5.1 X2, X5 and DIV2 Link 2.3 Description of Links 2.4 Primary Frequency Application 2.5 Transducer Input Load 6.1 Application Example... -
Page 3: Safety Information
1.0 Safety Information Terms in this Manual Warnings & Cautions WARNING statements identify conditions or WARNING: Do not operate in an explosive atmosphere practices that could result in personal injury or loss of life. WARNING: Safety critical environments This equipment is not intended for use in a safety critical CAUTION statements identify conditions or practices environment that could result in damage to the equipment or other... -
Page 4: Electrostatic Discharge
1.0 Safety Information (cont.) Warnings & Cautions 1.1 CAUTION: Electrostatic Discharge • Connect the transducer and power supplies with the This equipment is susceptible to electrostatic discharge power switched off (ESD) when being installed or adjusted, or whenever the • Ensure any tools used are discharged by contacting case cover is removed. -
Page 5: Installation
2.0 Installation 2.1 Mounting and Access Before mounting the LVC, please refer to section 2.10. Hook the LVC on the DIN rail with the release clip facing down and push onto the rail until a ‘click’ is heard. To remove, use a screwdriver to lever the release clip down. Pull the bottom of the housing away from the rail and unhook. DIN Rail Cover Release Latch Withdraw PCB... -
Page 6: Connections And Link Identifi Cation
2.0 Installation (cont.) 2.2 Connections and link identifi cation • Primary Frequency Transducer • Synchronization Synchronization 1 Synchronization 2 Primary Primary • Coarse Offset Shield (0 V) Secondary POWER Secondary • Input Load • Input Gain SPAN Power Supply & Outputs ZERO Voltage Output Math OUT... -
Page 7: Description Of Links
2.0 Installation (cont.) 2.3 Description of links The table below and subsequent diagrams explain the link functions and detail the factory settings. Link Description Options Factory Setting Select coarse output gain Range 1 to 6 Link ON, position 1 COARSE GAIN COARSE OFFSET Select coarse output offset +VE, -VE, 5 V, 10 V... -
Page 8: Primary Frequency
2.0 Installation (cont.) 2.4 Primary Frequency The LVC primary frequency is set using links as shown below. Transducer specifi cations determine the optimum frequency. Primary amplitude is not adjustable. The LVC uses ratiometric techniques and is insensitive to primary amplitude. Maximum secondary transducer amplitudes must be observed. -
Page 9: Basic Confi Guration
2.0 Installation (cont.) 2.7 Basic Confi guration Please refer to section 2.10 before installation. A fl oating output power supply is recommended as it will minimize ground loop noise problems. Please refer to section 6.1 for a typical arrangement. Voltage and current connections are shown. -
Page 10: Output Descriptions
2.0 Installation (cont.) 2.8 Output Descriptions Coarse Gain SPAN Input Gain This section describes how the various outputs of the LVC are related. Transducer Vout Circuits Offsets and ZERO Vout This is a voltage output. The gain and offset controls are used to set the required output range. -
Page 11: Connections
2.0 Installation (cont.) 2.9 Connections The diagram in section 2.7 shows a basic connection with LVDT. The following diagram gives further details of Macro Sensors LVDT transducers and alternative connections for Half Bridge transducers. Pri1 (yel E) High Pri2 (brn F) -
Page 12: Placement And Emc
2.0 Installation (cont.) 2.10 Placement and EMC The LVC has been designed to comply with EMC regulations. For best performance, the EMC compliance of surrounding equipment must be considered. High levels of EMI (electro magnetic interference) can affect the performance of LVC. Residential, Commercial and Light Industrial Environments Typically this will be an offi... - Page 13 2.0 Installation (cont.) 2.0 Installation (cont.) Manual Part No. 0653 0003 0000 Rev B...
- Page 14 2.0 Installation (cont.) 2.0 Installation (cont.) Manual Part No. 0653 0003 0000 Rev B...
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Page 15: Lvc Synchronization
2.0 Installation (cont.) 2.11 LVC Synchronization When a system comprises several LVC modules, it is possible to synchronize primary oscillator signals. Synchronization will not be required for most installations. It is only required when transducers and their cables are installed in close proximity to each other and there may be electrical interaction or cross-talk between sensors. -
Page 16: Setting Up
3.0 Setting Up 3.1 Set-up Summary This is a set-up summary. A more detailed procedure is included in following sections but these simple steps describe a typical setting procedure and apply to most applications. Other procedures may be used as appropriate. Step 1 Step 2 Step 3... -
Page 17: Set-Up Procedure
3.0 Setting Up (cont.) 3.2 Set-up Procedure Step 1 - Set-up LVC links If the transducer characteristics are known, set the frequency and input resistance links as required. If the transducer characteristics are not known, the factory default link settings should be used. If the transducer is known to be outside the standard sensitivity range, the X2, X5 or DIV2 links will have to be used. - Page 18 3.0 Setting Up (cont.) Step 3 - Setting bi-polar (±) full scale output 1 Move the transducer core to the position where maximum LVC output is required 2 If the output polarity is wrong, reverse the transducer primary connections (terminals 3 & 4). Move the transducer core back and re-check the zero position 3 Move the coarse gain link along from position 1 towards position 6 until the LVC output is near the required value 4 Adjust the SPAN control to give the required output...
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Page 19: Math Functions
4.0 MATH Functions 4.1 MATH Introduction By linking two LVC modules, the following analog arithmetic may be performed: A+B, A-B, (A+B)/2 and (A-B)/2. The output of LVC A, Vout , is connected to the Min terminal of LVC B. The output of LVC B is routed internally to the arithmetic circuits and the result is available at the Mout terminal. -
Page 20: Math Set-Up Procedure
4.0 MATH Functions (cont.) 4.2 MATH Set-up Procedure A+B A-B LINK FOR (X)/2 (A+B)/2 (A-B)/2 Mout=Vout Setting up two LVC for MATH can become confusing as the output of each LVC will affect the fi nal output. The steps below are guidelines to help the set-up process. -
Page 21: Transducer Sensitivity
5.0 Transducer Sensitivity 5.1 X2, X5 and DIV2 link The LVC compensates for changes in primary signal amplitude by producing an internal error signal that is the ratio between the primary and secondary signals. If the transducer output signal is too high or too, low errors may occur that can degrade the performance of the LVC/transducer combination. -
Page 22: Application
6.0 Application 6.1 Application example 6.0 Application Manual Part No. 0653 0003 0000 Rev B... -
Page 23: Specifi Cation
7.0 Specifi cation 7.1 Mechanical Outline (mm) 111.0 22.5 Solartron Metrology Ltd. www.solartronmetrology.com Bognor Regis PO22 9ST sales@solartronmetrology.com 114.5 7.0 Specifi cation Manual Part No. 0653 0003 0000 Rev B... -
Page 24: Technical Specifi Cation
7.0 Specifi cation (cont.) 7.2 Technical Specifi cation Power Requirement Voltage Range 10 to 30 VDC Current Range 160 mA at 10 V to 70 mA at 30 V Transducer Excitation Primary Voltage 3 V rms nominal Primary Frequency Link Selectable 3 kHz, 5 kHz or 10 kHz Primary Current 30 mA max. - Page 25 7.0 Specifi cation (cont.) Signal Output (cont.) Temp. Co. Gain <0.01% FRO/ºC Temp. Co. Offset <0.01% FRO/ºC Warm-up 15 minutes recommended Linearity <0.1% FRO Bandwidth (-3 dB) Link Selectable 250 Hz, 500 Hz Maths Link Selectable A + B, A - B, (A +B)/2, (A - B)/2 Maths Accuracy 0.01% FRO Environmental...
- Page 26 7.0 Specifi cation (cont.) Notes Where load resistance is critical, an external resistor may be installed. If a 10 kΩ load is required an additional 11 kΩ resistor may be used in conjunction with the 100 kΩ internal load. This may be connected across the SEC1 (7) and SEC2 (8) terminals.
- Page 27 Macro Sensors reserves the right to repair or 2. Get an RMA number from Macro Sensors Customer replace goods returned under warranty. Service Representative Call : 856-662-8000 or email sales@ macrosensor.com...
- Page 28 Macro Sensors pursues a policy of continuous development. Specifi cations in this document may therefore be changed without notice Manual Part No. 0653 0003 0000 Rev B...