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Installation Guide for Danfoss models including: VLT Soft Starter MCD600 Modbus RTU Card, VLT Soft Starter MCD600, Modbus RTU Card, RTU Card, Card
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DocumentDocumentInstallation Guide Modbus RTU Card VLT® Soft Starter MCD 600 vlt-drives.danfoss.com Modbus RTU Card Installation Guide Contents 1 Safety 1.1 Disclaimer 1.2 Warnings 1.3 Important User Information 2 Introduction 2.1 Compatibility 3 Installation 3.1 Installing the Expansion Card 3.2 Connecting to the Network 4 Operation 4.1 Prerequisites 4.2 Client Configuration 4.3 Configuration 4.3.1 Modbus Network Settings 4.3.2 Enabling Network Control 4.4 Feedback LEDs 5 Modbus Registers 5.1 PLC Configuration 5.2 Compatibility 5.3 Ensuring Safe and Successful Control 5.4 Parameter Management 5.5 Standard Mode 5.5.1 Command and Configuration Registers (Read/Write) 5.5.2 Status Reporting Registers (Read Only) 5.6 Examples 5.7 Trip Codes 5.8 Modbus Error Codes 6 Ground Fault Protection 6.1 Overview 6.2 Connect the CT to the Ground Fault Inputs 6.3 Configure Ground Fault Protection Settings 7 Specifications 7.1 Connections Danfoss A/S © 2022.11 Contents 5 5 5 5 6 6 7 7 7 8 8 8 8 8 8 8 9 9 9 9 9 9 9 10 13 13 15 16 16 16 16 17 17 AQ277154312778en-000201/175R1180 | 3 Modbus RTU Card Installation Guide 7.2 Settings 7.3 Certification Contents 17 17 4 | Danfoss A/S © 2022.11 AQ277154312778en-000201/175R1180 Modbus RTU Card Installation Guide Safety 1 Safety 1.1 Disclaimer The examples and diagrams in this manual are included solely for illustrative purposes. The information contained in this manual is subject to change at any time and without prior notice. Responsibility or liability is never accepted for direct, indirect, or consequential damage resulting from the use or application of this equipment. 1.2 Warnings WARNING SHOCK HAZARD Attaching or removing accessories while the soft starter is connected to mains voltage may cause personal injury. - Before attaching or removing accessories, isolate the soft starter from mains voltage. WARNING RISK OF PERSONAL INJURY AND EQUIPMENT DAMAGE Inserting foreign objects or touching the inside of the soft starter while the expansion port cover is open may endanger personnel and can damage the soft starter. - Do not insert foreign objects in the soft starter with the port cover open. - Do not touch the inside of the soft starter with the port cover open. 1.3 Important User Information Observe all necessary safety precautions when controlling the soft starter remotely. Alert personnel that machinery may start without warning. The installer is responsible for following all instructions in this manual and for following correct electrical practice. Use all internationally recognized standard practice for RS485 communication when installing and using this equipment. Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 5 Modbus RTU Card Installation Guide Introduction 2 Introduction 2.1 Compatibility This communication expansion card is suitable for use with VLT® Soft Starter MCD 600. The card is available in 2 versions: · 175G0127: VLT® Soft Starter MCD 600 Modbus RTU Card · 175G0027: VLT® Soft Starter MCD 600 Modbus RTU Card with Ground Fault Protection. This manual is suitable for use with both versions. This Installation Guide is intended for use with version 2.x of the VLT® Soft Starter MCD 600 Modbus RTU Card. Version 1.x of the Modbus RTU Card does not support custom users, TCP connection, or IoT operation. 6 | Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide Installation 3 Installation 3.1 Installing the Expansion Card Procedure 1. Push a small flat-bladed screwdriver into the slot in the center of the expansion port cover and ease the cover away from the soft starter. 2. Line up the card with the expansion port. 3. Gently push the card along the guide rails until it clicks into the soft starter. Example 1 2 e77ha739.10 Illustration 1: Installation of the Expansion Card 3.2 Connecting to the Network The expansion card must be installed in the soft starter. Procedure 1. Restore control power. 2. Connect field wiring via the 5-way connector plug. Example 54321 e77ha741.10 Illustration 2: 5-way Connector Plug Pin 1, 2 3 4, 5 Function Data A Common Data B Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 7 Modbus RTU Card Installation Guide Operation 4 Operation 4.1 Prerequisites The Modbus RTU Card must be controlled by a Modbus client (such as a PLC) which complies with the Modbus Protocol Specification. For successful operation, the client must also support all functions and interfaces described in this manual. 4.2 Client Configuration For standard Modbus 11-bit transmission, configure the client for 2 stop bits with no parity and 1 stop bit for odd or even parity. For 10-bit transmission, configure the client for 1 stop bit. In all cases, the client baud rate and server address must match those set in parameters 12-1 to 12-4. The data polling interval must be long enough for the module to respond. Short polling intervals may cause inconsistent or incorrect behavior, particularly when reading multiple registers. The recommended minimum polling interval is 300 ms. 4.3 Configuration 4.3.1 Modbus Network Settings Set the network communication parameters for the card via the soft starter. For details on how to configure the soft starter, see the VLT® Soft Starter MCD 600 Operating Guide. Table 1: Parameter Settings Parameter Parameter name Description 12-1 Modbus Address Sets the Modbus RTU network address for the soft starter. 12-2 Modbus Baud Rate Selects the baud rate for Modbus RTU communications. 12-3 Modbus Parity Selects the parity for Modbus RTU communications. 12-4 Modbus Timeout Selects the timeout for Modbus RTU communications. 4.3.2 Enabling Network Control The soft starter only accepts commands from the expansion card if parameter 1-1 Command Source is set to Network. NOTICE If the reset input is active, the soft starter does not operate. If a reset switch is not required, fit a link across terminals RESET, COM+ on the soft starter. 4.4 Feedback LEDs LED status Off On Flashing Description The soft starter is not powered up. Communication active. Communication inactive. NOTICE If communication is inactive, the soft starter may trip on Network Communications. If parameter 6-13 Network Communications is set to Soft Trip and Log or Trip Starter, the soft starter requires a reset. 8 | Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide Modbus Registers 5 Modbus Registers 5.1 PLC Configuration Use the tables in 5.5 Standard Mode to map registers within the device to addresses within the PLC. NOTICE All references to registers mean the registers within the device unless otherwise stated. 5.2 Compatibility The Modbus RTU Card supports 2 modes of operation: · In Standard Mode, the device uses registers defined in the Modbus Protocol Specification. · In Legacy Mode, the device uses the same registers as the clip-on Modbus Module supplied by Danfoss for use with older soft starters. Some registers differ from those specified in the Modbus Protocol Specification. 5.3 Ensuring Safe and Successful Control Data written to the device remains in its registers until the data is overwritten or the device is reinitialized. If the soft starter should be controlled via parameter 7-1 Command Override or should be disabled via the reset input (terminals RESET, COM+), fieldbus commands should be cleared from the registers. If a command is not cleared, it is resent to the soft starter once fieldbus control resumes. 5.4 Parameter Management Parameters can be read from and written to the soft starter. The Modbus RTU Card can read or write a maximum of 125 registers in 1 operation. NOTICE The total number of parameters in the soft starter may vary according to the model and parameter list of the soft starter. Attempting to write to a register not associated with a parameter returns an error code 02 (illegal data address). Read register 30602 to determine the total number of parameters in the soft starter. NOTICE Do not change the default values of the Advanced parameters (parameter group 20-** Advanced Parameters). Changing these values may cause unpredictable behavior in the soft starter. 5.5 Standard Mode 5.5.1 Command and Configuration Registers (Read/Write) Table 2: Description of Read/Write Registers Register Description Bits Details 40001 Command (single write) 07 To send a command to the starter, write the required value: 00000000 = Stop 00000001 = Start 00000010 = Reset 00000100 = Quick stop (coast to stop) 00001000 = Forced communication trip 00010000 = Start using Parameter Set 1 00100000 = Start using Parameter Set 2 01000000 = Reserved Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 9 Modbus RTU Card Installation Guide Modbus Registers Register Description Bits Details 10000000 = Reserved 814 Reserved 15 Must = 1 40002 Reserved 40003 Reserved 40004 Reserved 40005 Reserved 40006 Reserved 40007 Reserved 40008 Reserved 4000940xxx Parameter management (single 015 Manage soft starter programmable parameters. See the VLT® Soft Start- or multiple read/ write) er MCD 600 Operating Guide for a complete parameter list. 5.5.2 Status Reporting Registers (Read Only) NOTICE For models MCD6-0063B and smaller (soft starter model ID 1~4), the current and frequency reported via communications registers are 10 times greater than the actual value. Table 3: Description of Read Registers Register Description Bits Details 30003 30004 30005 30006 30007 30008 30600 Reserved Reserved Reserved Reserved Reserved Reserved Version 05 Binary protocol version 68 Parameter list major version 30601 30602 915 Product type code: 15 = MCD 600 Model number 07 Reserved 815 Soft starter model ID Changed parameter number 07 0 = No parameters have changed 1255 = Index number of the last parameter changed 815 Total number of parameters available in the soft starter 10 | Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide Modbus Registers Register 30603 30604 30605 30606 30607 30608 30609 Description Changed parameter value Starter state Current Current Motor temperature Power % Power factor Bits Details 015 Value of the last parameter that was changed, as indicated in register 30602 04 0 = Reserved 1 = Ready 2 = Starting 3 = Running 4 = Stopping 5 = Not ready (restart delay, restart temperature check, run simulation, reset input is open) 6 = Tripped 7 = Programming mode 8 = Jog forward 9 = Jog reverse 5 1 = Warning 6 0 = Uninitialized 1 = Initialized 7 Command source 0 = Remote LCP, Digital Input, Clock 1 = Network 8 0 = Parameters have changed since last parameter read 1 = No parameters have changed 9 0 = Negative phase sequence 1 = Positive phase sequence 1015 Reserved 013 Average rms current across all 3 phases 1415 Reserved 09 Current (% motor FLC) 1015 Reserved 07 Motor thermal model (%) 815 Reserved 011 Power 1213 Power scale 0 = Multiply power by 10 to get W 1 = Multiply power by 100 to get W 2 = Power (kW) 3 = Multiply power by 10 to get kW 1415 Reserved 07 100% = power factor of 1 Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 11 Modbus RTU Card Installation Guide Modbus Registers Register 30610 30611 30612 30613 30614 30615 30616 30617 30618 Description Bits Details 815 Reserved Voltage 013 Average rms voltage across all 3 phases 1415 Reserved Current 013 Phase 1 current (rms) 1415 Reserved Current 013 Phase 2 current (rms) 1415 Reserved Current 013 Phase 3 current (rms) 1415 Reserved Voltage 013 Phase 1 voltage 1415 Reserved Voltage 013 Phase 2 voltage 1415 Reserved Voltage 013 Phase 3 voltage 1415 Reserved Parameter list version number 07 Parameter list minor revision 815 Parameter list major version Digital input state 015 For all inputs, 0 = open, 1 = closed (shorted) 0 = Start/Stop 1 = Reserved 2 = Reset 3 = Input A 4 = Input B 5 to 15 = Reserved 30619 Trip code 30620 Reserved 30621 Frequency 30622 Ground current 30623~30631 Reserved 015 See 5.7 Trip Codes 815 Reserved 015 Frequency (Hz) 015 Ground Current (A) NOTICE Reading register 30603 (Changed parameter value) resets registers 30602 (Changed parameter number) and 30604 (Parameters have changed). Always read registers 30602 and 30604 before reading register 30603. 12 | Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide Modbus Registers 5.6 Examples Table 4: Command: Start Message Soft starter address In 20 Out 20 Function code 06 06 Register address 40002 40002 Data 1 1 CRC CRC1, CRC2 CRC1, CRC2 Table 5: Soft Starter State: Running Message Soft starter address In 20 Out 20 Function code 03 03 Register address 40003 2 Data 1 xxxx0011 CRC CRC1, CRC2 CRC1, CRC2 Table 6: Trip Code: Motor Overload Message Soft starter address In 20 Out 20 Function code 03 03 Register address 40004 2 Data 1 00000010 CRC CRC1, CRC2 CRC1, CRC2 Table 7: Download Parameter from Soft Starter - Read Parameter 5 (Parameter 1-5 Locked Rotor Current), 600% Message Soft starter address Function code Register Data In 20 03 40013 1 Out 20 03 2 (bytes) 600 CRC CRC1, CRC2 CRC1, CRC2 Table 8: Upload Single Parameter to Soft Starter - Write Parameter 61 (Parameter 2-9 Stop Mode), set =1 Message Soft starter address Function code Register Data In 20 06 40024 1 Out 20 06 40024 1 CRC CRC1, CRC2 CRC1, CRC2 Table 9: Upload Multiple Parameters to Soft Starter - Write Parameters 9, 10, 11 (Parameters 2-2 to 2-4) Set to Values of 15 s, 300%, and 350%, Respectively Message Soft starter address Function code Register Data CRC In 20 16 40017, 3 15, 300, 350 CRC1, CRC2 Out 20 16 40017, 3 15, 300, 350 CRC1, CRC2 NOTICE This function can only be used to upload consecutive parameters. The Register field indicates the number of parameters to be uploaded and the register number of the 1st parameter. 5.7 Trip Codes Code Description 0 No trip 1 Excess start time Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 13 Modbus RTU Card Installation Guide Code 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 23 24 26 27 28 29 30 31 33 34 35 36 47 48 Description Motor overload Motor thermistor Current imbalance Frequency Phase sequence Instantaneous overcurrent Power loss Undercurrent Heatsink overtemperature Motor connection Input A trip FLC too high Unsupported option (function not available in inside delta) Communications card fault Forced network trip Internal fault Overvoltage Undervoltage Parameter out of range Input B trip L1 phase loss L2 phase loss L3 phase loss L1-T1 shorted L2-T2 shorted L3-T3 shorted Time-overcurrent (bypass overload) SCR overtemperature Battery/clock Thermistor circuit Overpower Underpower 14 | Danfoss A/S © 2022.11 Modbus Registers AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide Modbus Registers Code 56 57 58 59 60 70 71 72 73 74 75 76 77 78 79 80 81 82 83 8496 Description LCP disconnected Zero speed detect SCR itsm Instantaneous overcurrent Rating capacity Current read err L1 Current read err L2 Current read err L3 Remove mains volts (mains voltage connected in run simulation) Motor connection T1 Motor connection T2 Motor connection T3 Firing fail P1 Firing fail P2 Firing fail P3 VZC fail P1 VZC fail P2 VZC fail P3 Low control volts Internal fault x. Contact the local supplier with the fault code (x). 5.8 Modbus Error Codes Code Description 1 Illegal function code 2 Illegal data address 3 Illegal data value 4 Slave device error 6 Slave device busy Example The adapter or soft starter does not support the requested function. The adapter or soft starter does not support the specified register address. The adapter or soft starter does not support 1 of the received data values. An error occurred while trying to perform the requested function. The adapter is busy (for example writing parameters to the soft starter). Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 15 Modbus RTU Card Installation Guide Ground Fault Protection 6 Ground Fault Protection 6.1 Overview NOTICE Ground fault protection is only available on ground fault enabled option cards with soft starters running a compatible version of software. Contact the supplier for assistance. The Modbus RTU Card can detect ground current and trip before the equipment is damaged. Ground fault protection requires a 1000:1 or 2000:1 current transformer (not supplied). The CT should be rated 1 VA or 5 VA. The soft starter can be configured to trip at 150 A. If ground fault current rises above 50 A, the soft starter trips immediately. Parameter 40-3 Ground Fault Trip Active selects when ground fault protection is active. 6.2 Connect the CT to the Ground Fault Inputs To use ground fault protection, a common-mode current transformer (CT) must be installed around all 3 phases. Procedure 1. Use a 1000:1 or 2000:1 CT with a rating of 1 VA or 5 VA. 2. Set parameter 40-5 Ground Fault CT ratio to match the CT. 3. Connect the CT to the ground fault terminals (G1, G2, G3). For maximum protection, the CT should be installed on the input side of the soft starter. 6.3 Configure Ground Fault Protection Settings Ground fault protection settings must be set in the soft starter. Parameter Description Parameter 40-1 Ground Fault Level Sets the trip point for ground fault protection. Parameter 40-2 Ground Fault Delay Shows the response of the Modbus RTU Card to ground fault variation, avoiding trips due to momentary fluctuations. Parameter 40-3 Ground Fault Trip Active Selects when a ground fault trip can occur. Parameter 40-4 Ground Fault Action Selects the response of the soft starter to the protection event. Parameter 40-5 Ground Fault CT Ratio Set to match the ratio of the ground current measuring CT. 16 | Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 Modbus RTU Card Installation Guide 7 Specifications 7.1 Connections Soft starter Network Maximum cable size 7.2 Settings Protocol Address range Data rate (bps) Parity Timeout 7.3 Certification RCM CE RoHS Specifications 6-way pin assembly 5-way male and unpluggable female connector (supplied) 2.5 mm2 (14 AWG) Modbus RTU, AP ASCII 0254 4800, 9600, 19200, 38400 None, Odd, Even, 10-bit None (Off), 10 s, 60 s, 100 s IEC 60947-4-2 EN 60947-4-2 Compliant with EU Directive 2011/65/EU Danfoss A/S © 2022.11 AQ277154312778en-000201 / 175R1180 | 17 Modbus RTU Card Installation Guide Index Index B L Baud rate............................................................................................................8 LEDs..................................................................................................................... 8 C Certification RCM.......................................................................................................... 17 CE.............................................................................................................. 17 RoHS.........................................................................................................17 Connector plug................................................................................................7 E Expansion card.................................................................................................7 Expansion port cover.....................................................................................7 P Polling interval.................................................................................................8 T Tools Flat-bladed screwdriver.......................................................................7 Transmission 11-bit.......................................................................................................... 8 10-bit.......................................................................................................... 8 18 | Danfoss A/S © 2022.11 AQ277154312778en-000201/175R1180 Modbus RTU Card Installation Guide Index Danfoss A/S © 2022.11 AQ277154312778en-000201/175R1180 | 19 Danfoss A/S Ulsnaes 1 DK-6300 Graasten vlt-drives.danfoss.com Danfoss can accept no responsibility for possible errors in catalogs, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved. *175R1180* Danfoss A/S © 2022.11 *M0016501* AQ277154312778en-000201 / 175R1180