Danfoss VLT 5000 Instruction Manual
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Danfoss VLT 5000 Instruction Manual

Modbus rtu
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Instruction Manual
Modbus RTU
®
VLT
5000
®
VLT
6000 HVAC

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  • Page 1 All manuals and user guides at all-guides.com Instruction Manual Modbus RTU ® 5000 ® 6000 HVAC...
  • Page 2 All manuals and user guides at all-guides.com Modbus RTU Option Card ® 6000 Adjustable Frequency Drive Instruction Manual 23-6130-00 Revision B 02/03...
  • Page 3 All manuals and user guides at all-guides.com Warnings Against Unintended Rotating shafts and electrical equipment can be hazardous. Therefore, it is strongly Start recommended that all electrical work conform to National Electrical Code (NEC) 1. While the drive is connected to the AC line, the motor and all local regulations.

  • Page 4: Table Of Contents

    Memory Mapping: Status Coil Maps ............ 18 Memory Mapping: Register Maps ............18 Message Translation Examples ............. 19 Exception Codes Exception Code Tables ................23 Appendix A Supported Modbus RTU Function Codes ..........24 MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 5: Introduction

    Already Know ® 6000 Installation, Operation and References Instruction Manual, Danfoss Graham document number 23-6108-00. (Referred to as the VLT 6000 Operating Instructions in this document.) MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 6: Modbus Rtu Overview

    Normal (ramp) stop • Reset after a fault trip • Run at a variety of preset speeds • Run in reverse • Change the active setup • Control the drive's two built-in relays MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 7 (pin 9 termination) Address and Termination 9-Input DIP Switch (pin 1) Baud Rate and Parity (pin 1) 9-Input DIP Switch 6-Pin Connector to VLT 6000 Terminals VLT 6000 Modbus RTU Option Card MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 8: Modbus Rtu Option Card Baud Rate And Parity Settings

    • Set input switches 4 and 5 to ON to select no parity. OFF ON PCB EDGE 9600 Baud Rate and No Parity Switch Settings Baud Rate 1200 2400 4800 9600 19200 Parity None Even Optional Baud Rate and Parity Switch Settings MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 9: Modbus Rtu Option Card Address Settings

    Modbus. The Modbus RTU option card always transmits to the drive in which it resides as address one (001). See the VLT 6000 Operating Instructions for details on selecting and changing parameter values, if necessary. MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 10: Modbus Rtu Option Card Environmental Requirements

    Improper installation according to National Electrical of motor or drive can cause Codes and local codes. equipment failure, serious injury or death. Follow this manual, National Electrical Codes and local safety codes. MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 11 • Unplug two ribbon cables (A) and (B) from Cassette VLT 6000 control board. and Ribbon • Unhinge cassette at top to remove. Cables NOTE Ribbon cables will need to be reconnected to same connec- tions from which removed. MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 12 6. Install NOTE Ribbon Ribbon cables must be recon- Cables nected to same connections from which removed. • Connect control card cassette to hinge at top of drive. • Connect ribbon cables. MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 13 • Plug EIA-485 connector into terminal port EIA-485 Connector at side of Modbus RTU option card. RS-485 Connector NEMA 12 Drives • Close front cover panel and fasten with captive screws. Tighten to 7 in-lbs. MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 14: Status Leds

    The orange or red with the table below. indicator lasts around 10-15 seconds. The LEDs will then flash red or green communication indications. Loop Back Test Switch Positions MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 15: Remote Terminal Unit

    CRC field is not valid for the combined messages. The entire message frame must be transmitted as a continuous stream. If a silent interval of more than 1.5 character times MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 16 This can include items like discrete and register addresses, the quantity of items to be handled, and the count of actual data bytes in the field. The data field can have a length of zero. MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 17: Translation From Modbus Rtu Protocol To Fc Protocol

    Reference value (master → slave) (Coils 1 – 16) (Coils 17 – 32) Reply packet Status word Given output frequency (slave → master) (Coils 33 – 48) (Coils 49 – 64) PCD Mapping MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 18: Fc Protocol Control Word Bit Description

    0400 (read) or Valid sizes to read are 1 register (16 bits) and 0500 (write) prior to reading or writing a 2 registers (32 bits). text string. MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 19: Memory Mapping: Status Coil Maps

    Parameter 631, Nameplate: Communication Option Ordering No. 06310 06320 – 06999 Reserved Parameter 700, Relay 6, Output Function 07000 ↓ ↓ Parameter 711, Relay 9, Off Delay 07110 07120 – 65536 Reserved MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 20: Message Translation Examples

    Byte 3 Byte 4 Byte 5 Byte 6 Slave Function Coil Addr HI Coil Addr LO No. of Coils No. of Coils Error Check Address [54] [13] All values are in hexadecimal. MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 21 TU option card d d d d Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Slave Function Coil Addr HI Coil Addr LO No. of Coils No. of Coils Error Check Address MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 22 Byte 6 Byte 7 Slave Function Byte Count Data HI Data LO Data HI Data LO Error Check Address (Reg 45140) (Reg 45140) (Reg 45141) (Reg 45141) All values are in hexadecimal. MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 23 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Slave Function Start Addr HI Start Addr LO No. Registers No. Registers Error Check Address All values are in hexadecimal. MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 24: Exception Codes

    Data Change is not possible because factory setup is selected Message Timeout VLT 6000 Errors Modbus Code Meaning (decimal) Invalid Data Address Invalid Message Length Invalid Data Length Invalid Function Code Modbus RTU Errors MG.10.P2.22 - VLT is a registered Danfoss trademark...

  • Page 25: Supported Modbus Rtu Function Codes

    ‘low order to high order’ in subsequent bytes. Field Name Example (HEX) Slave Address Function Byte Count Data (Coils 8-1) Data (Coils 16-9) Error Check (CRC) – MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 26 Field Name Example (HEX) Slave Address Function Force Data HI Force Data LO Quantity of Coils HI Quantity of Coils LO Error Check (CRC) – APPENDIX A MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 27 Field Name Example (HEX) Slave Address Function Coil Address HI Coil Address LO Quantity of Coils HI Quantity of Coils LO Error Check (CRC) – APPENDIX A MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 28 Byte Count Data HI (Register 40001) Data LO (Register 40001) Data HI (Register 40002) Data LO (Register 40002) Data HI (Register 40003) Data LO (Register 40003) Error Check (CRC) – APPENDIX A MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 29 Field Name Example (HEX) Slave Address Function Register Address HI Register Address LO Preset Data HI Preset Data LO Error Check (CRC) APPENDIX A MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 30 Field Name Example (HEX) Slave Address Function Starting Address HI Starting Address LO No. of Registers HI No. of Registers LO Error Check (CRC) – APPENDIX A MG.10.P2.22 - VLT is a registered Danfoss trademark...
  • Page 31 All manuals and user guides at all-guides.com...
  • Page 32 All manuals and user guides at all-guides.com Danfoss Graham Division of Danfoss Inc. 8800 West Bradley Road P.O. Box 245041 Milwaukee, Wisconsin 53224-9541 Phone: (414) 355-8800 Fax: (414) 355-6117 Toll free: (800) 621-8806 E-mail: graham@grahamdrives.com http://www.namc.danfoss.com...
  • Page 33 All manuals and user guides at all-guides.com...

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