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Vacon 100 Installation And User Manual
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Vacon 100 Installation And User Manual

Vacon 100 Installation And User Manual

Modbus protocol
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  • Page 2: Table Of Contents

    6.3.3 Holding and input registers ..................... 27 Example messages ......................35 Fault tracing ....................38 Typical fault conditions ....................38 RS-485 bus biasing......................38 Other fault conditions....................... 39 Quick setup ..................... 42 Annex ......................44 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 3 • 1 Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 4: Safety

    Table 1. Warning signs Danger The components of the power unit of Vacon 100 are live when the AC drive is connected to mains potential. Coming into contact with this voltage is extremely dangerous and may cause death or severe injury.

  • Page 5: Warnings

    Vacon 100 AC drive is meant for fixed installations only. Do not perform any measurements when the AC drive is connected to the mains. The earth leakage current of Vacon 100 AC drives exceeds 3.5mA AC. According to standard EN61800-5-1, a reinforced protective ground connection must be ensured.

  • Page 6: Earthing And Earth Fault Protection

    Earthing and earth fault protection CAUTION! The Vacon 100 AC drive must always be earthed with an earthing conductor connected to the earthing terminal marked with The earth leakage current of Vacon 100 exceeds 3.5mA AC. According to EN61800-5-1, one or...
  • Page 7 • 5 Safety Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 8: Modbus - General Info

    All other nodes on the Modbus network ignore the message if the address field doesn't match their own address. Your Vacon 100 HVAC drive is equipped with Modbus support as standard. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 9 Modbus RTU Figure 2.Principal example diagram of Modbus If you need to contact Vacon service in problems related to Modbus, please send a description of the problem together with the Drive Info File to fieldbus@vacon.com. Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 10: Modbus Technical Data

    Modbus TCP Connections and Connector Shielded RJ45 connector communications Cable type CAT5e STP As described in Modbus Messaging Modbus TCP Implementation Guide Default IP Selectable: Fixed or DHCP (AutoIP) Table 3. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 11 • 9 Modbus technical data Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 12: Modbus Installation

    ODBUS INSTALLATION Open the cover of the AC drive. The relay outputs and other I/O-terminals may have a dangerous control voltage present even when Vacon 100 is disconnected from mains. DANGER Figure 3. Locate the components that you will need on the AC drive to connect and run the Modbus cables.

  • Page 13: Prepare For Use Through Ethernet

    • 11 Modbus installation RS485 terminals A = Data- B = Data+ switches 21 22 23 24 25 26 32 33 Ethernet connector 12 13 14 15 16 17 18 19 30 Ethernet cable run 9 10 11 conduit...
  • Page 14 Remount the AC drive cover. NOTE: When planning the cable runs, remember to keep the distance between the Ethernet cable and the motor cable at a minimum of 30 cm. Ethernet cable Figure 7. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 15: Prepare For Use Through Rtu

    Strip the cable at a maximum length of 15 mm. Do not strip the aluminum cable shield! Then connect the cable to its appropriate terminals on Vacon 100 AC drive stan- dard terminal block, terminals A and B (A = negative, B = positive). See Figure 8.
  • Page 16 RS485 cable to the frame of the AC drive. Cable clamp If Vacon 100 is the last device on the bus, the bus termination must be set. Locate the DIP switches to the right of the control keypad of the drive and turn the switch for the RS485 bus termination resistor to position ON.
  • Page 17 The bus termination must be set for the first and the last device of the fieldbus line. See picture below. See also step 6 on page 14. We recommend that the first device on the bus and, thus, terminated was the Master device. Vacon 100 Vacon 100 Vacon 100 Vacon 100 Vacon 100 Termination...

  • Page 18: Programming

    Programming vacon • 16 ROGRAMMING Basic information on how to use the control keypad you will find in the Vacon HVAC Drive Application Manual (publication DPD00039). The navigation path to the fieldbus parameters may differ from application to application. The exemplary paths below apply to the Vacon 100 HVAC drive.
  • Page 19 • 17 Programming Code Parameter Unit Default Description MONITORING VALUES 0 = Init Fieldbus protocol 1 = Stopped P5.7.3.2.1 status 2 = Operational 3 = Faulted 0-99 Number of mes- sages with errors Communication P5.7.3.2.2 99.999 0-999 Number of mes-...

  • Page 20: Modbus Tcp Parameters And Monitoring Values

    MONITORING VALUES (Connection 2, Monitoring M5.8.2.3.1)* All parameters are the same as those for Connection 1. * Will appear only after connection has been established Table 6. Parameters related with BACnet used through Ethernet 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 21: Modbus Rtu Parameter Descriptions

    STOPPED Protocol is timeouted or not used OPERATIONAL Protocol is running Major fault in protocol, requires restarting. FAULTED If fault remains contact fieldbus@vacon.com Table 8. FB protocol statuses P5.7.3.2.2 OMMUNICATION STATUS Communication status 0The shows how many error and how many good messages the fre- quency converter has received.
  • Page 22 Shows the last fault response as P5.7.3.2.10 ONTROL WORD Control Word Shows the received from the bus. P5.7.3.2.11 TATUS WORD Status Word Shows the current that is sent to the bus. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 23: Modbus Tcp Parameter Descriptions

    • 21 Programming Modbus TCP parameter descriptions 5.4.1 Ethernet common settings P5.8.1.1 ADDRESS MODE DHCP Fixed Selectable alternatives are (Dynamic Host Configuration Protocol) and DHCP protocol gives IP addresses to new devices connecting to local network. This address is valid for a certain period of time.

  • Page 24: Modbus Tcp Settings

    The timer is reset and started after each received package. This parameter can be used if the client is periodically polling the slaves. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 25: Modbus Tcp Monitoring Values

    Protocol is timeouted or not used OPERATIONAL Protocol is running Major fault in protocol, requires restarting. FAULTED If fault remains contact fieldbus@vacon.com Table 10. FB protocol statuses P5.8.2.2.1.2 OMMUNICATION STATUS Communication status shows how many error and how many good messages the frequen- cy converter has received.
  • Page 26 Shows the current Status Word that is sent to the bus. 5.4.3.2 Connection 2 The monitoring values are the same as those for Connection 1 (chapter 5.4.3.1), only with a dif- ferent code (P5.8.2.3.1.X). 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 27 • 25 Programming Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 28: Communications

    • Holding register 40108 is addressed as register 006B hex (107 decimal). Modbus memory map The Vacon variables and fault codes as well as the parameters can be read and written from Modbus. The parameter addresses are determined in the application. Every parameter and ac- tual value have been given an ID number in the application.

  • Page 29: Modbus Data Mapping

    • 27 Communications Modbus data mapping 6.3.1 Coil registers Coil registers contain binary data (Read/Write). See page 29. Address Function Purpose 0001 RUN/STOP Control Word, bit 0 0002 Direction Control Word, bit 1 0003 Fault reset Control Word, bit 2 Table 13.
  • Page 30 Process Data Master -> Slave (max 22 bytes) Address Name Range/Type 16-bit 32-bit 2051 = High data 2001 FB Control Word Binary coded 2052 = Low data 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 31 See chapter 9. 2070 = Low data *. In Vacon 100, the Control Word and the Status Word are formed of 32 bits. Only the initial 16 bits can be read in the 16-bit area. Table 17. Fieldbus Process Data IN Control word bits The Control word is composed of 32 bits.
  • Page 32 FB Process Data Out 7 See chapter 9. 2168 = Low data 2169 = High data 2111 FB Process Data Out 8 See chapter 9. 2170 = Low data Table 19. Fieldbus Process Data Out 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 33 • 31 Communications Status Word bits The Status word is composed of 32 bits. The meanings of bits are described below. Name Value = 1 Value = 0 Description Indicates whether the drive is Ready Ready Not ready ready or not...
  • Page 34 If the IDMap table has not been initialized, all fields show the index '0'. If the it has been initial- ized, the parameter ID's included in it are stored in the flash memory of the OPT-CI board. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 35 • 33 Communications Example of 32Bit IDMap Address Data 410701 Data High, parameter ID700 410702 Data Low, parameter ID700 410703 Data High, parameter ID702 410704 Data Low, parameter ID702 Table 24. Example of parameter values in 32-bit IDMap Read/Write registers 6.3.3.5...
  • Page 36 29 faults at the same time. The fault history contents are represented as fol- lows. Address Register Purpose 40401 440401 40402 440402 40403 440403 40429 440429 Table 29. Fault history 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 37: Example Messages

    • 35 Communications Example messages Example 1 Write the process data 42001…42003 with command 16 (Preset Multiple Registers). Command Master - Slave: ADDRESS 01 hex Slave address 1 hex (= 1) FUNCTION 10 hex Function 10 hex (= 16)
  • Page 38 09 hex Output Frequency = 09C4 hex (=2500 =>25.00Hz) Data LO C4 hex ERROR CRC HI 78 hexCRC field 78E9 hex (=30953) CHECK CRC LO E9 hex Reply frame: 01 04 04 13 88 09 C4 78 E9 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 39 • 37 Communications Example of an exception response most-significant bit (MSB) In an exception response, the Slave sets the of the function code to 1. The Slave returns an exception code in the data field. Command Master - Slave:...

  • Page 40: Fault Tracing

    ‘1’ (above +200mV) also between the mes- sages. To bias the bus you will have to add a separate active termination resistor specifically designed for the RS-485 bus (e.g. Siemens active RS 485 terminating element (6ES7972-0DA00-0AA0)). 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

  • Page 41: Other Fault Conditions

    • 39 Fault tracing Other fault conditions The following fault tracing diagram will help you to locate and fix some of the most usual prob- lems. If the problem persists contact your local distributor. Figure 9. Fault tracing diagram for Modbus RTU...
  • Page 42 Fault tracing vacon • 40 Figure 10. Fault tracing diagram for Modbus TCP 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 43 • 41 Fault tracing Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 44: Quick Setup

    D. Set Reference value to ‘5000’ (50.00%) (2003). Actual speed is 5000 (25.00 Hz if MinFreq is 0.00 Hz and MaxFreq is 50.00 Hz) Control Word F. Set to ‘0’ (2001) G. Frequency converter status is STOP. 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...
  • Page 45 • 43 Quick setup Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205...

  • Page 46: Annex

    2109 Process data OUT 6 Motor Voltage 0,1 V 2110 Process data OUT 7 DC link voltage 2111 Process data OUT 8 Active Fault Code Table 31. Process Data OUT variables 24-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com...

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