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SNV Engineering SNV018EC.XX User And Installation Manual

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SNV018EC.XX
Current Measurement Card family
User and Installation Manual
SNV Engineering LTD
st
24B Papadiamantopoulou Street • 1
floor
Ilissia • Athens • Greece • 11528
Phone +30 2107779260 • Fax +30 2107703223
Site: www.snveng.gr

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Summary of Contents for SNV Engineering SNV018EC.XX

  • Page 1 SNV018EC.XX Current Measurement Card family User and Installation Manual SNV Engineering LTD 24B Papadiamantopoulou Street • 1 floor Ilissia • Athens • Greece • 11528 Phone +30 2107779260 • Fax +30 2107703223 Site: www.snveng.gr...
  • Page 2 New template format and minor adds. V3.1 18/01/2012 Card power consumption This document and the information it contains are the sole property of SNV. They shall not be disclosed nor reproduced without the prior written approval of SNV as originator. © SNV Engineering Ltd...

  • Page 3: Table Of Contents

    Safety instructions .................17 Safety Symbols ..................18 Card Operation ..................19 Modbus Memory Map ................19 MODBUS Functions ................26 Technical Assistance ................32 Annex A – Drawings ................33 Annex B – Bus Termination and Bias Resistors ........39 © SNV Engineering Ltd...

  • Page 4: Card Specifications

    On board long time averaging and integrations Communication using MODBUS over RS485 Up to 127 cards connected in series Board power consumption < 1.5W Operating temperatures : -20°C to +60°C CE: EMC: EN61326-1 and Safety: EN61010-1 Figure 1: SNV018EC.24 Card © SNV Engineering Ltd...
  • Page 5 An additional input is also implemented to monitor a switch or a sensor acting as a switch (ex. surge protection, door opening etc.). Board temperature is also measured and provided © SNV Engineering Ltd...

  • Page 6: Specifications

    10V/m (instead of 3Vrms and 3V/m required from the above standards) Safety Meets EN 61010-1 RATED CLASS I and RATED TRANSIENT Measurement Category OVERVOLTAGES 1,5KV Indoor or outdoor use installed Usage in a metallic and/or plastic box © SNV Engineering Ltd...

  • Page 7: Measurement Characteristics

    Communication Protocol Modbus RTU Default baudrate 9600 bps Max number of nodes Max suggested cable length 1200 m Protected from Overvoltage Line Faults up to ±60V Clamp diodes (A and B to GND) ±30V Bus Short-Circuit Protection © SNV Engineering Ltd...

  • Page 8: Card Description

    Connector CON6 has two pins which are dry contacts. The connector CON6 is used to monitor a switch or a sensor acting as a switch (ex. surge protection, door opening etc.). © SNV Engineering Ltd...
  • Page 9 The connector plugs used are equivalent to the ones listed in the following table: Connector Ref Manufacturer Manufacturer P/N For CON1/CON2 Weidmüller BL 5.08/04/180 SN or BX For CON3/CON4 Weidmüller BL 5.08/04/180 SN or BX For CON6 Weidmüller BL 5.08/02/180 SN or BX Table 2: CMC Connectors Description © SNV Engineering Ltd...

  • Page 10: Ordering Information

    SNV018.XX.0023 (according to drawings, see ANNEX A) Table 3: CMC ordering information Where XX should be filled according to the table below: Channels Number 8 Channels 12 Channels 16 Channels 24 Channels Table 4: Channel indicators © SNV Engineering Ltd...

  • Page 11: Card Installation

    The below installation procedure is proposed by SNV Engineering in order to ensure the good and safe operation of the card. In case that the described procedure is not followed SNV Engineering is not responsible from any caused damages or injury.
  • Page 12 1A, since the on-board PCB fuse is 1A rated. A clamp diode is installed at power supply terminals after the on-board PCB fuse. If power supply polarity is wrong, current will be conducted through the diode, blowing the fuse. © SNV Engineering Ltd...

  • Page 13: Inspection And Handling

    In any case, all bolts must be tide, to ensure the conductivity. Use star washers between ring terminal or common bar and bolt head or nut. Do not apply star washer directly on the card. © SNV Engineering Ltd...

  • Page 14: Housing Preparation

    The connector plugs to be used are those listed in table 2 or equivalent. For the preparation of the cables connected to the plugs the IPC-620 have to be followed by the installer. Plugs should be connected with cables before plugged to the card. © SNV Engineering Ltd...

  • Page 15: Installation

    5. Mount the common current cable on the common bar using M5x10 (DIN912 or DIN933) bolt and star washers (DIN6798A), as illustrated in figure 10. 6. Plug connectors CON1/CON2, CON3/CON4 and CON6 on the card as shown in figure 11. Figure 6: Mounting of the fixing bars © SNV Engineering Ltd...
  • Page 16 I N S T A L L A T I O N M A N U A L V 3 . 1 Figure 7: Placing the card on the mounting bars Figure 8: Mounting the common bar on the CMC SNV018EC © SNV Engineering Ltd...
  • Page 17 I N S T A L L A T I O N M A N U A L V 3 . 1 Figure 9: Mounting of the current measurement cables Figure 10: Mounting the common current cable on the CMC SNV018EC © SNV Engineering Ltd...
  • Page 18 Figure 11: Plug the connectors on the card For the other boards of the family SNV018EC the steps are identical and the mechanical parts for the mounting of the board are in accordance with the drawings in ANNEX A. © SNV Engineering Ltd...
  • Page 19 Figure 12: Alternative mounting figure with "bolt holding bars" Ensure spacer length > 20mm for grounded mount plate. Ensure spacer length > 30mm for non-grounded mount plate. Figure 13: Detail view of "bolt holding bar" mounting © SNV Engineering Ltd...

  • Page 20: Safety

    Read this chapter before you perform any operations or installation of the card. If the equipment used in a manner not specified by the instructions of user manual, the protection provided by the card may be impaired. © SNV Engineering Ltd...

  • Page 21: Safety Symbols

    CAUTION RISK OF DANGER Note When an equipment is marked with this symbol the documentation must always be consulted, in order to find out the nature of the potential HAZARD and any actions which have to be taken © SNV Engineering Ltd...

  • Page 22: Card Operation

    0x 000 float Amperes 0x 001 0x 002 float Amperes 0x 003 0x 004 float Amperes 0x 005 0x 006 float Amperes 0x 007 0x 008 float Amperes 0x 009 0x 00A float Amperes 0x 00B © SNV Engineering Ltd...
  • Page 23 Amperes 0x 02B 0x 02C float Amperes 0x 02D 0x 02E float Amperes 0x 02F 0x 030 float 0x 031 0x 032 float 0x 033 0x 034 float 0x 035 0x 036 float 0x 037 © SNV Engineering Ltd...
  • Page 24 0x 058 float Amperes 0x 059 0x 05A float Amperes 0x 05B 0x 05C float Amperes 0x 05D 0x 05E float Amperes 0x 05F 0x 060 float Amperes 0x 061 0x 062 float Amperes 0x 063 © SNV Engineering Ltd...
  • Page 25 0x 084 float Amperes 0x 085 0x 086 float Amperes 0x 087 0x 088 float Amperes 0x 089 0x 08A float Amperes 0x 08B 0x 08C float Amperes 0x 08D 0x 08E float Amperes 0x 08F © SNV Engineering Ltd...
  • Page 26 0x 0AE float Amperes 0x 0AF 0x 0B0 float 0x 0B1 0x 0B2 float 0x 0B3 0x 0B4 float 0x 0B5 0x 0B6 float 0x 0B7 0x 0B8 float 0x 0B9 0x 0BA float 0x 0BB © SNV Engineering Ltd...
  • Page 27 0x 0DC float Amperes 0x 0DD 0x 0DE float Amperes 0x 0DF 0x 0E0 float Amperes 0x 0E1 0x 0E2 float Amperes 0x 0E3 0x 0E4 float Amperes 0x 0E5 0x 0E6 float Amperes 0x 0E7 © SNV Engineering Ltd...
  • Page 28 0x 0FB 0x 0FC float 0x 0FD 0x 0FE float 0x 0FF 0x 100 float Celsius temperature 0x 101 coils (use MODBUS function 1) Address Type Units Description Dry contact input (1-contact / 0-no contact) © SNV Engineering Ltd...

  • Page 29: Modbus Functions

    SA_L 1 Byte 0x00 - 0xFF Starting Address Lo QI_H 1 Byte 0x00 - 0x00 Quantity of Input Registers Hi QI_L 1 Byte 0x00 - 0xFF Quantity of Input Registers Lo Quantity: 1 to 2000 (0x07D0) © SNV Engineering Ltd...
  • Page 30 N times Hi and Lo for N Registers Error Report: 0x84 2 Byte Error Function unsupported Address error Error in register quantity (1-125) Error in reading register according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b - paragraph 6.4 © SNV Engineering Ltd...
  • Page 31 2 Byte + data Echo data (Send received data) Error Report: 0x90 2 Byte Error Function unsupported Address error Error in register quantity (1-125) Erron in reading register according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b - paragraph 6.12 © SNV Engineering Ltd...
  • Page 32 Sub-Req. x, Record Data Sub-Req. x+1, ... Error Report: 0x94 2 Byte Error Function unsupported Address error Error in register quantity (1-125) Erron in reading register according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b - paragraph 6.14 © SNV Engineering Ltd...
  • Page 33 Sub-Req. x, Record Data Sub-Req. x+1, ... Error Report: 0x95 2 Byte Error Function unsupported Address error Error in register quantity (1-125) Erron in reading register according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b - paragraph 6.15 © SNV Engineering Ltd...
  • Page 34 0x00 to 0xFF Object length Length Object Value Error Report: 0xAB 2 Byte Error Function unsupported Address error Error in register quantity (1-125) Erron in reading register according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b - paragraph 6.21 © SNV Engineering Ltd...

  • Page 35: Technical Assistance

    If you need technical assistance or should it be necessary to return your product for repair or calibration use the contact details below: SNV Engineering Ltd Papadiamantopoulou 24 B 11528 Athens, Greece web site: www.snveng.gr email: info@snveng.gr tel: +30 210 7779260 fax: +30 210 7703223 © SNV Engineering Ltd...

  • Page 36: Annex A - Drawings

    M A N U A L V 3 . 1 – List of drawings: Reference No Description SNV018EC.0001 SNV018EC.XX – Board general dimensions SNV018.0020 SNV018EC.XX – Common Bar SNV018.0021 SNV018EC.XX – Mounting Current Bar SNV018.0022 SNV018EC.XX – Mounting Common Bar SNV018.0023...
  • Page 37 S N V 0 1 8 E C . X X U S E R & I N S T A L L A T I O N M A N U A L V 3 . 1 © SNV Engineering Ltd...
  • Page 38 S N V 0 1 8 E C . X X U S E R & I N S T A L L A T I O N M A N U A L V 3 . 1 © SNV Engineering Ltd...
  • Page 39 S N V 0 1 8 E C . X X U S E R & I N S T A L L A T I O N M A N U A L V 3 . 1 © SNV Engineering Ltd...
  • Page 40 S N V 0 1 8 E C . X X U S E R & I N S T A L L A T I O N M A N U A L V 3 . 1 © SNV Engineering Ltd...
  • Page 41 S N V 0 1 8 E C . X X U S E R & I N S T A L L A T I O N M A N U A L V 3 . 1 © SNV Engineering Ltd...

  • Page 42: Annex B - Bus Termination And Bias Resistors

    Figure 14: General Bus connection diagram. When the RS-485 network is in an idle state, all nodes are in receive mode and transmition line is not driven. External noise could drive the line instead making © SNV Engineering Ltd...
  • Page 43 For example using cable RE-2Y(St)Yv 04X2X0.5, 2 terminal resistors of 82 Ohm should be used at any transmission line end. And bias resistors of 270 Ohm Figure 15: Bus termination and Bias resistors when having two terminal resistors. © SNV Engineering Ltd...

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