Danfoss MCA 122 Modbus TCP Operating Instructions Manual

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MAKING MODERN LIVING POSSIBLE

Operating Instructions

MCA 122 Modbus TCP

Safety MCA 122 Modbus TCP

Safety

Safety Copyright, Limitation of Liability and

Revision Rights

This publication contains information proprietary to Danfoss. By accepting and using this manual the user agrees that the information contained herein is used solely for operating equipment from Danfoss or equipment from other vendors if such equipment is intended for communication with Danfoss equipment over an Ethernet serial communication link. This publication is protected under the Copyright laws of Denmark and most other countries.

Danfoss does not guarantee that a software program produced according to the guidelines provided in this manual functions properly in every physical, hardware, or software environment.

Although Danfoss has tested and reviewed the documentation within this manual, Danfoss makes no warranty or representation, either express or implied, with respect to this documentation, including its quality, performance, or fitness for a particular purpose.

In no event shall Danfoss be liable for direct, indirect, special, incidental, or consequential damages arising out of the use, or the inability to use information contained in this manual, even if advised of the possibility of such damages. In particular, Danfoss is not responsible for any costs including but not limited to the damages incurred as a result of lost profits or revenue, loss or damage of equipment, loss of computer programs, loss of data, the costs to substitute these, or any claims by third parties.

Danfoss reserves the right to revise this publication at any time and change its contents without prior notice or any obligation to notify previous users of such revisions or changes.

Safety Note

WARNING

HIGH VOLTAGE

The voltage of the frequency converter is dangerous whenever connected to mains. Incorrect installation of the motor, frequency converter, or fieldbus may damage the equipment, cause serious personal injury, or death. Consequently, the instructions in this manual, as well as national and local rules and safety regulations, must be complied with.

Safety Regulations

1. The frequency converter must be disconnected from mains before carrying out repair work. Check that the mains supply has been disconnected and that the necessary time has passed before removing motor and mains plugs.

2. The off-command on the serial bus does not disconnect the equipment from mains and should not be used as a safety switch.

3. Correct protective earthing or grounding of the equipment must be established. The user must be protected against supply voltage, and the motor must be protected against overload in accordance with applicable national and local regulations.

4. The earth leakage currents are higher than 3.5 mA.

5. Do not remove the plugs for the motor and mains supply while the frequency converter is connected to mains. Check that the mains supply has been disconnected and that the necessary time has passed before removing motor and mains plugs.

MG90P202 - VLT® is a protected Danfoss trademark

Safety MCA 122 Modbus TCP

Warning against Uninteded Start

1. The motor can be brought to a stop with bus commands while the frequency converter is connected to mains. These stop functions do NOT provide protection against unintended starts.

2. While parameters are being changed, there is a risk that motor starts.

3. Electronic faults in the frequency converter and cease of

temporary overload

•

faults in supply mains, or

•

fault in the motor connection

•

can cause an unintended start.

WARNING

ELECTRICAL HAZARD

Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains.

MG90P202 - VLT® is a protected Danfoss trademark

Contents MCA 122 Modbus TCP

Contents

1 Introduction

1.1 Introduction

1.1.1 About this Manual 3

1.1.2 Assumptions 3

1.1.3 Background Knowledge 3

1.1.4 Available Literature 3

1.1.5 Modbus Conformance 3

1.1.6 Abbreviations 4

2 How to Install

2.1 The Modbus TCP Option

2.1.1 How to Install Option in Frequency Converter 5

2.1.2 LED Behaviour 6

2.1.3 Topology 7

2.1.4 Network 8

2.1.5 Recommended Design Rules 8

2.1.6 EMC Precautions 10

3 3

5 5

3 How to Configure

3.1 IP Settings

3.2 Ethernet Link Parameters

3.3 Configuring the Scanner

3.4 IP Traffic

4 How to Control

4.1 How to Control the Frequency Converter

4.1.1 Function Codes Supported by Modbus TCP 17

4.2 Modbus TCP Message Framing Structure

4.2.1 Function Code 17

4.2.2 Data Field 17

4.2.3 Parameter Handling 17

4.2.4 Storage of Data 17

4.2.5 IND 18

4.2.6 Text Blocks 18

4.2.7 Conversion Factor 18

4.2.8 Parameter Values 18

11 11 11 12 15

17 17

4.2.9 Modbus Exception Codes 18

4.3 PROFIdrive Control Profile

4.3.1 Control Word according to PROFIdrive Profile (CTW) 19

4.3.2 Status Word according to PROFIdrive Profile (STW) 20

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Contents MCA 122 Modbus TCP

4.3.3 PROFIdrive State - Transition Diagram 21

4.4 Danfoss FC Control Profile

4.4.1 Status Word according to Frequency Converter Profile (STW) 24

4.5 Reference Handling

4.5.1 Bus Speed Reference Value 25

5 Parameters

5.1 Parameter Group 8-**

5.2 Parameter Group 12-**

5.2.1 12-0* IP Settings 30

5.2.2 12-1* Ethernet Link Parameters 31

5.2.3 12-2* Process Data 32

5.2.4 Modbus TCP 32

5.2.5 12-8* Other Ethernet Services 33

5.2.6 12-9* Advanced Ethernet Settings 33

5.3 Parameter List

5.4 Data Types

5.4.1 Data Types Supported by FC 102/FC 202/FC 302 36

27 27 30

34 36

6 Troubleshooting

6.1 Step-by-step Troubleshooting

6.2 Alarm Word and Warning Word

Index

37 37 37

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Introduction MCA 122 Modbus TCP

1 Introduction

1.1 Introduction

1.1.1 About this Manual

First time users can find the most essential information for quick installation and set-up in these chapters:

1 Introduction 2 How to Install 3 How to Configure

For more detailed information including the full range of set-up options and diagnosis tools, refer to the chapters:

3 How to Configure 4 How to Control 5 Parameters 6 Troubleshooting

Terminology Ethernet is a common term used to describe the physical layer of the network and does not relate to the application protocol.

Assumptions

1.1.2

These operating instructions are under the conditions that the MCA 122 Modbus TCP option is used with a Danfoss FC 100/FC 202/FC 300 frequency converter, and that the installed option supports the interfaces described in this document and that all the requirements stipulated in the option, as well as the frequency converter, are strictly observed along with all limitations herein.

Background Knowledge

1.1.3

1.1.4

Available Literature

Available Literature for FC 102/FC 202/FC 300

The Operating Instructions for VLT® HVAC Drive FC

102, VLT® AQUA Drive FC 202 and VLT AutomationDrive FC 302 provide the necessary

information for getting the frequency converter up and running.

The Design Guides for VLT

VLT® AQUA Drive FC 202 and VLT AutomationDrive FC 302 entail all technical

information about the frequency converter design and applications including encoder, resolver, and relay options.

Danfoss technical literature is also available online at www.danfoss.com/BusinessAreas/DrivesSolutions/ Documentations/Technical+Documentation.htm.

The VLT Operating Instructions, provide the information

required for controlling, monitoring, and programming the frequency converter via a Profibus Fieldbus.

The VLT Instructions, provide the information required for controlling, monitoring, and programming the frequency converter via a DeviceNet Fieldbus.

The MCT 10 Set-up Software Operating Instructions, provide information for installation and use of the software on a PC.

The VLT® AutomationDriveFC 302 IP21/Type 1 Instruction, provides information for installing the IP21/Type 1 option.

The VLT® AutomationDriveFC 302 24 V DC Backup Instruction, provides information for installing the 24 V DC Backup option.

AutomationDriveFC 302 Profibus

AutomationDriveFC 302 Operating

HVAC Drive FC 102,

1 1

The Danfoss Modbus Option Card is designed to communicate with any system complying with the Modbus Messaging on TCP/IP Implementation Guide V1.0b and Modbus Application Protocol Specification V1.1b standard. Familiarity with this technology is assumed. Issues regarding hardware or software produced by other manufacturers, including commissioning tools, are beyond the scope of this manual, and are not the responsibility of Danfoss.

For information regarding commissioning tools, or communication to a non-Danfoss node, consult the appropriate manuals.

MG90P202 - VLT® is a protected Danfoss trademark 3

Modbus Conformance

1.1.5

The Modbus option is tested to conform to the Modbus standards and is certified towards conformance test level version 3.

Introduction MCA 122 Modbus TCP

1.1.6 Abbreviations

Abbreviation Definition API Actual Packet Interval CC Control Card CIP Common Industrial Protocol CTW Control Word DHCP Dynamic Host Configuration Protocol EMC Electromagnetic Compatibility I/O Input/Output IP Internet Protocol LCP Local Control Panel LED Light Emitting Diode LSB Least Significant Bit MAR Major Recoverable fail MAU Major Unrecoverable fail MAV Main Actual Value (actual output) MSB Most Significant Bit MRV Main Reference Value N/A Not applicable ODVA Open DeviceNet Vendor Association PC Personal Computer PLC Programmable Logic Controller PNU Parameter Number REF Reference (=MRV) RTC Real Time Clock s Second STP Spanning tree Protocol STW Status Word

Table 1.1 Abbreviations

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Ethernet Port 1 Ethernet Port 2

MS LED

NS LEDs

MCA122 MODBUS TCP

SW. ver. TM. ver.

NS1

NS2

Ethernet Port 1 Ethernet Port2

Option A 130B1196

MAC 00-1B-08-00-00-00

Address

8 7 6 5 4 3 2 1

ON OFF

130BD190.10

How to Install MCA 122 Modbus TCP

2 How to Install

2.1 The Modbus TCP Option

Illustration 2.1 Overview of the Option

How to Install Option in Frequency

2.1.1 Converter

Items required for installing a fieldbus option in the frequency converter

The fieldbus option

•

Fieldbus option adapter frame for the FC 102/FC

•

202/FC 300. This frame is deeper than the standard frame, to allow space for the fieldbus option beneath

Strain relief (only for A1 and A2 enclosures)

•

Illustration 2.2 Option Installed in Frequency Converter

Illustration 2.3 Strain Relief for Enclosure Types A1 and A2

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How to Install MCA 122 Modbus TCP

Instructions

1. Remove LCP panel from the frequency converter.

2. Remove the frame located beneath and discard it.

3. Push the option into place. The Ethernet connectors must be facing upwards.

4. Remove both knock-outs on the fieldbus option adapter frame.

5. Push the fieldbus option adapter frame for the frequency converter into place.

6. Replace the LCP and attach cable.

NOTICE

Do not strip the Ethernet cable and ground it via the strain relief-plate! The grounding of screened Ethernet cable is done through the RJ-45 connector on the option.

2.1.2 LED Behaviour

The option has three bi-coloured LEDs

LED label Description MS Module Status NS1 Network Status Ethernet Port 1 NS2 Network Status Ethernet Port 2

NOTICE

After installing the MCA 122 option, be aware of the following parameter settings:

8-01 Control Site: [2] control word only or [0] Digital and ctrl. word 8-02 Control Word Source: [3] Option A

Table 2.1 Description of LEDs

State LED Description No power Off The device is un-powered Device operational Green: Solid green The device is operational

Standby Green: Flashing green The device needs commissioning Minor fault Red: Flashing red The device has detected a recoverable fault Major fault Red: Solid red The device has detected an un-recoverable

fault

Self test

No IP address Wink Yellow Flashing yellow Flash for 20 s

Table 2.2 MS: Module Status

State LED Description No IP-address (no power) Connected Green: Solid green Link present; but nor winked and no ACD

Duplicate IP Red: Solid red

Self test

Device has been winked Yellow Flashing yellow Flash for 20 s Link present at 10 Mbps Yellow Steady yellow Link present; but nor winked and no ACD

Red: Green: Yellow

Off No link present (or is un-powered)

Red: Green

Flashing red/ green

Steady yellow No IP address configured or obtained

Flashing red/ green

The Modbus TCP option is in self-test mode

The IP-address assigned to the device is already in use

The Modbus TCP is in self-test mode

Table 2.3 NS1+NS2: Network Status (One per Port)

6 MG90P202 - VLT® is a protected Danfoss trademark

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

130BA903.10

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

130BA904.10

How to Install MCA 122 Modbus TCP

2.1.3 Topology

The MCA 122 features a built-in Ethernet-switch, thus having two Ethernet RJ-45 connectors. This enables the possibility for connecting several Modbus TCP options in a line topology as an alternative to the typical star-topology.

The two ports are equal, in the sense that they are transparent for the option. If only one connector is used, either port can be used.

Illustration 2.4 Star Topology

Illustration 2.5 Line Topology

NOTICE

For line topology, refer to 2.1.5 Recommended Design Rules. In a line topology all frequency converters must be powered, either by mains or by their 24 V DC option cards, for the built-in switch to work.

NOTICE

Observe that mounting frequency converters of different power-sizes in a line topology may result in unwanted power-off behaviour. Smaller frequency converters discharge faster than bigger frequency converters. This can result in loss of link in the line topology, which may lead to control word timeout. To avoid this, mount the frequency converters with the longest discharge time first in the line topology.

MG90P202 - VLT® is a protected Danfoss trademark 7

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

130BA905.10

How to Install MCA 122 Modbus TCP

Illustration 2.6 Ring/Redundant Line Topology

2.1.4

Network

more information regarding IP-switching, refer to 3.4.1 IP Traffic.

It is of high importance that the media chosen for Ethernet data transmission are suitable. Usually CAT 5e and six

2.1.5 Recommended Design Rules

cables are recommended for industrial applications. Both types of cable are available as Unshielded Twisted Pair and Shielded Twisted Pair. Shielded cables are recommended for use in industrial environments and with frequency converters. A maximum cable-length of 100 m is allowed between switches.

Optical fibres can be used for gapping longer distances and providing galvanic isolation.

While designing Ethernet networks special attention and caution must be taken regarding active network components. While designing a network for line topology it is important to notice that a small delay is added with each every switch in the line.

It is not recommended to connect more than 32 frequency converters in a line at any API. Exceeding the recommended design rules, may result in failing communi-

For connecting Modbus TCP devices both hubs and

cation. switches can be used. It is, however, always recommended to use suitable industrial graded Ethernet switches. For

8 MG90P202 - VLT® is a protected Danfoss trademark

How to Install MCA 122 Modbus TCP

Illustration 2.7

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130BC509.10

How to Install MCA 122 Modbus TCP

2.1.6 EMC Precautions

NOTICE

Relevant national and local regulations, for example regarding protective earth connection, must be observed.

For interference-free operation of the Ethernet network, take the following EMC precautions.

Keep the Ethernet communication cable away

•

from motor and brake resistor cables to avoid

coupling of high frequency noise from one cable to another

Maintain the greatest possible distance (min. 200

•

mm (8 inches)) between cables. Especially, where cables run in parallel over long distances.

If crossing is unavoidable, the Ethernet cable

•

must cross motor and brake resistor cables at an angle of 90°

Additional EMC information is available in the frequency

converter Design Guide.

Illustration 2.8 EMC-correct Installation

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How to Configure MCA 122 Modbus TCP

3 How to Configure

3.1 IP Settings

All IP-related parameters are located in parameter group

12-0* IP Settings:

12-00 IP Address Assignment

•

12-01 IP Address

•

12-02 Subnet Mask

•

12-03 Default Gateway

•

12-04 DHCP Server

•

12-05 Lease Expires

•

12-06 Name Servers

•

12-07 Domain Name

•

12-08 Host Name

•

12-09 Physical Address

•

The MCA 122 option offers several ways of IP address assignment.

Setting up the frequency converter with manually assigned IP address

DHCP Server, the IP address of the found DHCP or

Server

BOOTP server is displayed.

For DHCP only: The remaining lease-time can be read-out

in 12-05 Lease Expires Lease Expires.

12-09 Physical Address, Physical Address reads out the MAC

address of option, which is also printed on the label of the

option. If using fixed leases together with DHCP or BOOTP,

the physical MAC address is linked with a fixed IP address.

NOTICE

If no DHCP or BOOTP reply has been received after four

attempts (for example, if the DHCP/BOOTP server has been

powered off), the option will fallback to the last good

known IP address.

12-03 Default Gateway, Default Gateway is optional and

only used in routed networks.

12-06 Name Servers, Name Servers

12-07 Domain Name, Domain Name

12-08 Host Name, Host Name

are used with Domain Name Server systems and are all

optional. If DHCP or BOOTP is selected as IP address

assignment, these parameters are read only.

3 3

Parameter 12-00 IP Address Assignment [0] MANUAL 12-01 IP Address 192.168.0.xxx* 12-02 Subnet Mask 255.255.255.0* 12-03 Default Gateway optional

Table 3.1 Assigning IP Adresses Manually

*= Class C IP address example. Any valid IP address can be entered.

Value

NOTICE

A power-cycle is necessary after setting the IP parameters manually.

Setting up the frequency converter with automatically (BOOTP/DHCP) assigned IP address

Parameter 12-00 IP Address Assignment 12-01 IP Address Read only 12-02 Subnet Mask Read only 12-03 Default Gateway Read only

Table 3.2 Assigning IP Adresses Automatically

Value [1] DHCP/[2] BOOTP

NOTICE

It is only possible to assign valid class A, B, and C IP

address to the option. The valid ranges are shown in

Table 3.3.

Class A 1.0.0.1 - 126.255.255.254 Class B 128.1.0.1 - 191.255.255.254 Class C 192.0.1.1 - 223.255.254.254

Table 3.3 Valid Ranges of IP Addresses

3.2

Ethernet Link Parameters

Parameter group 12-1* Ethernet Link Parameters holds

information Ethernet Link information:

12-10 Link Status

•

12-11 Link Duration

•

12-12 Auto Negotiation

•

12-13 Link Speed

•

12-14 Link Duplex

•

By IP address assigned by DHCP/BOOTP server, the assigned IP Address and Subnet Mask can be read out in 12-01 IP Address and 12-02 Subnet Mask. In 12-04 DHCP

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How to Configure MCA 122 Modbus TCP

NOTICE

The Ethernet Link Parameters are unique per port.

12-10 Link Status and 12-11 Link Duration displays information on the link status, per port. 12-10 Link Status displays Link or No Link according to the status of the present port. 12-11 Link Duration displays the duration of the link on the present port. If the link is broken the counter resets.

12-12 Auto Negotiation – is a feature that enables two connected Ethernet devices to choose common transmission parameters, such as speed and duplex mode. In this process, the connected devices first share their capabilities as for these parameters and then choose the fastest transmission mode they both support. By default this function is enabled. Incapability between the connected devices, may lead to decreased communication performance. To prevent this, Auto Negotiation can be disabled. If 12-12 Auto Negotiation is set to OFF, link speed and duplex mode can be configured manually in 12-13 Link

Speed and 12-14 Link Duplex.

12-14 Link Duplex

port.

Half-duplex provides communication in both directions,

but only in one direction at a time (not simultaneously).

Full-duplex allows communication in both directions, and

unlike half-duplex, allows for communication in both

directions, to happen simultaneously.

3.3 Configuring the Scanner

For configuring the scanner to communicate to the

frequency converter, no system (for example, EDS, GSD file)

file is needed. The frequency converter is handled as a

generic device and as such, configured directly in the

scanner. The following example sets up the scanner to IP

addresses 192.168.1.20 and the FC 302 to address

192.168.1.20.

Configuring a Modicon scanner

The following example uses the Unity Pro tool from Group

Schneider to configure the PLC. The example only shows

the setting up of the Protocol and assigning I/O mapping

to internal memory of the PLC.

– displays/sets the duplex mode per

12-13 Link Speed – displays/sets the link speed per port. “None” is displayed if no link is present.

Under network, add a network by right clicking the

Network menu and select “New Network”

Illustration 3.1 Adding a Network

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How to Configure MCA 122 Modbus TCP

By selecting this menu, assign a name to the new network. In this example “Danfoss” has been chosen.

Illustration 3.2 Assigning a Network Name

After clicking [OK], the network “Danfoss” should show up under Networks and by selecting the Network, the main configuration page is shown.

Menu Menu point Setting

Model Family Model Family NOE 0100, NOE 110 Model Utilities IO Scanning YES

Global Data NO

Address Server NO IP address configuration

Ethernet Configuration

Table 3.4 Menu Settings

In the IP Configuration tab, press the [Configured] key, and the IP address and fill out [Subnetwork mask]. In this example the address

192.168.1.20 is used as the address for the master.

Configured/From a

server

IP address 192.168.001.020

Subnetwork mask 255.255.255.0

Gateway address 0.0.0.0

Ethernet Configu-

ration

Configured

Ethernet II

The step assigns the protocol to the scanner, which is done

by selecting the scanner and selecting the “Function” menu and enables the Ethernet by selecting “ETH TCP IP” This brings up the Net Link menu, where “Danfoss” has to be selected. At this time, the “Danfoss” Protocol is assigned to the Scanner and the last step is to configure the scanner to read and write holding registers of the FC 302.

3 3

Illustration 3.3 Main Configuration Page

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How to Configure MCA 122 Modbus TCP

Illustration 3.4 Net Link Menu

Menu Function Function ETH TCP IP Net Link Net Link Danfoss

Table 3.5 Menu Settings

Menu point Setting

14 MG90P202 - VLT® is a protected Danfoss trademark

130BB261.11

How to Configure MCA 122 Modbus TCP

At this time the “Danfoss” Protocol is assigned to the Scanner and the last step is to configure the scanner to read and write holding registers of the FC 302.

By first selecting the Danfoss network and second, selecting the IO Scanning tab, the scanning list appears. Fill out the list as shown in Illustration 3.5.

3 3

Illustration 3.5 Scanning List

Menu IO Scanning IP address 192.168.001.030

Table 3.6 Menu Settings

Menu point Setting

Unit ID 255 Health Timeout 1500 Repetitive rate 60 RD Master Object %MW100 RD Slave Index 2910 RD Length 10 Last Value Hold Last VR Master Object %MW200 VR Slave Index 2810 VR Lenght 10 Description -

This configuration copies the information stored from %MW200 to %M209 in the PLC to the Holding register 2810 to 2819 of the FC 302. It reads the holding registers 2910 to 2919 of the FC 302 to the PLCs memory %MW100 to %M109.

3.4 IP Traffic

The use of Ethernet-based network for industrial automation purposes, calls for careful and thorough network design. Especially the use of active network components like switches and routers requires detailed know-how about the behaviour of IP traffic.

Some important issues IGMP IGMP (Internet Group Management Protocol) is an integrated part of IP. It allows hosts to join or leave a multicast host group. Group membership information is exchanged between a specific host and the nearest multicast router.

Spanning Tree Protocol (STP) For an Ethernet network to function properly, only one active path can exist between two nodes. Spanning-Tree Protocol is a link management protocol that provides path redundancy while preventing undesirable loops in the network.

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How to Configure MCA 122 Modbus TCP

When loops occur, some switches see stations appearing on both sides of them. This condition confuses the forwarding algorithm and allows for duplicate frames to be forwarded.

To provide path redundancy, Spanning-Tree Protocol defines a tree that spans all switches in an extended network. Spanning-Tree Protocol forces certain redundant data paths into a standby (blocked) state. If one network

segment in the Spanning-Tree Protocol becomes unreachable, or if Spanning-Tree Protocol costs change, the spanning-tree algorithm reconfigures the spanning-tree topology and reestablishes the link by activating the standby path.

Spanning-Tree Protocol operation is necessary if the frequency converters are running in a ring/redundant line topology.

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How to Control MCA 122 Modbus TCP

4 How to Control

4.1 How to Control the Frequency Converter

This section describes codes which can be used in the function and data fields of a Modbus TCP message. For a complete description of all the message fields, refer to

4.2 Modbus TCP Message Framing Structure.

4.1.1 Function Codes Supported by

Modbus TCP

Modbus TCP supports use of the following function codes in the function field of a message

function code tells the slave what action to perform. When the slave responds to the master, it uses the function code to indicate either a normal (error-free) response, or that some error occurred (called an exception response). For a normal response, the slave echoes the original function code. For an exception response, the slave returns a code that is equivalent to the original function code with its most significant bit set to logic 1. In addition, the slave places a unique code into the data field of the response message. This tells the master what error occurred, or the reason for the exception. Refer also to sections

4.1.1 Function Codes Supported by Modbus TCP and

4.2.9 Modbus Exception Codes.

Data Field

4.2.2

4 4

Function Function code Read holding registers 3 hex Write single register 6 hex Write multiple registers 10 hex Get comm. event counter B hex Report slave ID 11 hex Read/Write multiple registers 17 hex

Table 4.1 Function Codes

Function

Diagnostics 8

Function code

Sub-function code 1 Restart communication 2 Return diagnostic

10 Clear counters and

11 Return bus message

12 Return bus communi-

13 Return bus exception

14 Return slave message

Sub-function

diagnostic register

count

cation error count

error count

count

The data field is constructed using sets of two hexadecimal digits, in the range of 00 to FF hexadecimal. These digits are made up of one TCP character. The data field of messages sent from a master to slave device contains additional information which the slave must use to take the action defined by the function code. This can include items such as coil or register addresses, the quantity of items to be handled, and the count of actual data bytes in the field.

Parameter Handling

4.2.3

The PNU (Parameter Number) is translated from the register address contained in the Modbus read or write message. The parameter number is translated to Modbus as (10 x parameter number) DECIMAL. Example: Reading 3-12 Catch up/slow Down Value (16bit): The holding register 3120 holds the parameters value. A value of 1352 (Decimal), means that the parameter is set to 12.52%

Reading 3-14 Preset Relative Reference (32bit): The holding registers 3410 & 3411 holds the parameters value. A value of 11300 (Decimal), means that the parameter is set to

1113.00 S.

Table 4.2 Subfunction Codes

4.2

Modbus TCP Message Framing Structure

4.2.1 Function Code

The function code of a message frame contains 8 bits. Valid codes are in the range of 1-FF. Use function codes to send messages between master and slave. When a message is sent from a master to a slave device, the

MG90P202 - VLT® is a protected Danfoss trademark 17

For information on the parameters, size and converting index, consult the product relevant programming guide.

4.2.4

Storage of Data

The Coil 65 decimal determines whether data written to the frequency converter are stored in EEPROM and RAM (coil 65=1) or only in RAM (coil 65= 0).

How to Control MCA 122 Modbus TCP

4.2.5 IND

4.2.9

Modbus Exception Codes

Some parameters in the frequency converter are array parameters e.g. 3-10 Preset Reference. Since the Modbus does not support arrays in the Holding registers, the frequency converter has reserved the Holding register 9 as

For a full explanation of the structure of an exception code response, refer to 4.2 Modbus TCP Message Framing Structure.

pointer to the array. Before reading or writing an array parameter, set the holding register 9. Setting holding register to the value of 2, will cause all following read/ write to array parameters to be to the index 2.

4.2.6 Text Blocks

Parameters stored as text strings are accessed in the same way as the other parameters. The maximum text block size is 20 characters. If a read request for a parameter is for more characters than the parameter stores, the response is truncated. If the read request for a parameter is for fewer characters than the parameter stores, the response is space filled.

Conversion Factor

4.2.7

The different attributes for each parameter can be seen in the section on factory settings. Since a parameter value can only be transferred as a whole number, a conversion factor must be used to transfer decimals.

Parameter Values

4.2.8

Standard data types Standard data types are int16, int32, uint8, uint16 and uint32. They are stored as 4x registers (40001–4FFFF). The parameters are read using function 03HEX "Read Holding Registers." Parameters are written using the function 6HEX "Preset Single Register" for 1 register (16 bits), and the function 10 HEX "Preset Multiple Registers" for 2 registers (32 bits). Readable sizes range from 1 register (16 bits) up to 10 registers (20 characters).

Non standard data types

Code Name Meaning

1 Illegal

function

2 Illegal data

address

3 Illegal data

value

4 Slave device

failure

The function code received in the query is not an allowable action for the server (or slave). This may be because the function code is only applicable to newer devices, and was not implemented in the unit selected. It could also indicate that the server (or slave) is in the wrong state to process a request of this type, for example because it is not configured and is being asked to return register values. The data address received in the query is not an allowable address for the server (or slave). More specifically, the combination of reference number and transfer length is invalid. For a controller with 100 registers, a request with offset 96 and length 4 would succeed, a request with offset 96 and length 5 generates exception 02. A value contained in the query data field is not an allowable value for server (or slave). This indicates a fault in the structure of the remainder of a complex request, such as that the implied length is incorrect. It specifically does NOT mean that a data item submitted for storage in a register has a value outside the expectation of the application program, since the Modbus protocol is unaware of the significance of any particular value of any particular register. An unrecoverable error occurred while the server (or slave) was attempting to perform the requested action.

Non standard data types are text strings and are stored as 4x registers (40001–4FFFF). The parameters are read using

Table 4.3 Modbus Exception Codes

function 03HEX "Read Holding Registers" and written using function 10HEX "Preset Multiple Registers." Readable sizes range from 1 register (2 characters) up to 10 registers (20 characters).

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How to Control MCA 122 Modbus TCP

4.3 PROFIdrive Control Profile

This section describes the functionality of the control word and status word in the PROFIdrive profile. Select this profile by setting 8-10 Control Word Profile.

4.3.1 Control Word according to PROFIdrive

Profile (CTW)

The Control word is used to send commands from a master (for example, a PC) to a slave.

Bit Bit=0 Bit=1 00 OFF 1 ON 1 01 OFF 2 ON 2 02 OFF 3 ON 3 03 Coasting No coasting 04 Quick stop Ramp 05 Hold frequency output Use ramp 06 Ramp stop Start 07 No function Reset 08 Jog 1 OFF Jog 1 ON 09 Jog 2 OFF Jog 2 ON 10 Data invalid Data valid 11 No function Slow down 12 No function Catch up 13 Parameter set-up Selection lsb 14 Parameter set-up Selection msb 15 No function Reverse

Table 4.4 Control Word Bits

Explanation of the control bits

Bit 00, OFF 1/ON 1 Normal ramp stops using the ramp times of the actual selected ramp. Bit 00="0" leads to the stop and activation of the output relay 1 or 2 if the output frequency is 0 Hz and if [Relay 123] has been selected in 5-40 Function Relay. When bit 0="1", the frequency converter is in State 1: “Switching on inhibited”. Refer to Illustration 4.1.

Bit 01, OFF 2/ON 2 Coasting stop When bit 01="0", a coasting stop and activation of the output relay 1 or 2 occurs if the output frequency is 0 Hz and if [Relay 123] has been selected in 5-40 Function Relay. When bit 01="1", the frequency converter is in State 1: “Switching on inhibited”. Refer to Illustration 4.1.

Bit 02, OFF 3/ON 3 Quick stop using the ramp time of 3-81 Quick Stop Ramp Time. When bit 02="0", a quick stop and activation of the output relay 1 or 2 occurs if the output frequency is 0 Hz and if [Relay 123] has been selected in 5-40 Function Relay.

When bit 02="1", the frequency converter is in State 1: “Switching on inhibited”. Refer to Illustration 4.1.

Bit 03, Coasting/No coasting Coasting stop Bit 03="0" leads to a stop. When bit 03="1", the frequency converter can start if the other start conditions are satisfied.

NOTICE

The selection in 8-50 Coasting Select determines how bit 03 is linked with the corresponding function of the digital inputs.

4 4

Bit 04, Quick stop/Ramp Quick stop using the ramp time of 3-81 Quick Stop Ramp Time. When bit 04="0", a quick stop occurs. When bit 04="1", the frequency converter can start if the other start conditions are satisfied.

NOTICE

The selection in 8-51 Quick Stop Select determines how bit 04 is linked with the corresponding function of the digital inputs.

Bit 05, Hold frequency output/Use ramp When bit 05="0", the current output frequency is being maintained even if the reference value is modified. When bit 05="1", the frequency converter can perform its regulating function again; operation occurs according to the respective reference value.

Bit 06, Ramp stop/Start Normal ramp stop using the ramp times of the actual ramp as selected. In addition, activation of the output relay 01 or 04 if the output frequency is 0 Hz if Relay 123 has been selected in 5-40 Function Relay. Bit 06="0" leads to a stop. When bit 06="1", the frequency converter can start if the other start conditions are satisfied.

NOTICE

The selection in 8-53 Start Select determines how bit 06 is linked with the corresponding function of the digital inputs.

Bit 07, No function/Reset Reset after switching off. Acknowledges event in fault buffer. When bit 07="0", no reset occurs. When there is a slope change of bit 07 to "1", a reset occurs after switching off.

Bit 08, Jog 1 OFF/ON Activation of the pre-programmed speed in 8-90 Bus Jog 1 Speed. JOG 1 is only possible if bit 04="0" and bit 00-03="1".

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How to Control MCA 122 Modbus TCP

Bit 09, Jog 2 OFF/ON Activation of the pre-programmed speed in 8-91 Bus Jog 2 Speed. JOG 2 is only possible if bit 04="0" and bit

NOTICE

Bit 15 causes reversing only when Ser. communication, Logic or or Logic and is selected.

00-03="1". Bit 10, Data invalid/valid

Is used to tell the frequency converter whether the control

4.3.2 Status Word according to PROFIdrive Profile (STW)

word is to be used or ignored. Bit 10=“0” causes the control word to be ignored, giving the opportunity to turn off the control word when updating/reading parameters. Bit 10=“1” causes the control word to be used. This

The Status word is used to notify a master (for example, a PC) about the status of a slave.

function is relevant, because the control word is always contained in the telegram, regardless of which type of

telegram is used. Bit 11, No function/Slow down

Is used to reduce the speed reference value by the amount given in 3-12 Catch up/slow Down Value value. When bit 11="0", no modification of the reference value occurs. When bit 11="1", the reference value is reduced.

Bit 12, No function/Catch up Is used to increase the speed reference value by the amount given in 3-12 Catch up/slow Down Value. When bit 12="0", no modification of the reference value occurs. When bit 12="1", the reference value is increased. If both slowing down and accelerating are activated (bit 11 and 12="1"), slowing down has priority, that is, the speed reference value is reduced.

Bits 13/14, Set-up selection

Bit Bit=0 Bit=1 00 Control not ready Control ready 01 Drive not ready Drive ready 02 Coasting Enable 03 No error Trip 04 OFF 2 ON 2 05 OFF 3 ON 3 06 Start possible Start not possible 07 No warning Warning 08 09 Local operation Bus control 10 Out of frequency limit Frequency limit ok 11 No operation In operation 12 Drive OK Stopped, autostart 13 Voltage OK Voltage exceeded 14 Torque OK Torque exceeded 15 Timer OK Timer exceeded

Speed ≠ reference

Speed=reference

Bits 13 and 14 are used to choose between the four parameter set-ups according to Table 4.5.

The function is only possible if Multi Set-up has been chosen in 0-10 Active Set-up. The selection in 8-55 Set-up

Table 4.6 Status Word Bits

Explanation of the status bits

Select determines how bits 13 and 14 are linked with the corresponding function of the digital inputs. Changing setup while running is only possible if the set-ups have been linked in 0-12 This Set-up Linked to.

Bit 00, Control not ready/ready When bit 00="0", bit 00, 01 or 02 of the Control word is "0" (OFF 1, OFF 2 or OFF 3) - or the frequency converter is switched off (trip).

Set-up

1 0 0 2 1 0 3 0 1 4 1 1

Bit 13 Bit 14

When bit 00="1", the frequency converter control is ready, but there is not necessarily power supply to the unit present (in the event of external 24 V supply of the control system).

Bit 01, VLT not ready/ready Same significance as bit 00, however, there is a supply of

Table 4.5 Parameter Set-ups

the power unit. The frequency converter is ready when it

receives the necessary start signals. Bit 15, No function/Reverse Bit 15=“0” causes no reversing. Bit 15=“1” causes reversing.

NOTICE

In the factory setting reversing is set to digital in 8-54 Reversing Select.

Bit 02, Coasting/Enable

When bit 02="0", bit 00, 01 or 02 of the Control word is "0"

(OFF 1, OFF 2 or OFF 3 or coasting) - or the frequency

converter is switched off (trip).

When bit 02="1", bit 00, 01 or 02 of the Control word is

"1"; the frequency converter has not tripped.

Bit 03, No error/Trip

When bit 03="0", no error condition of the frequency

converter exists.

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How to Control MCA 122 Modbus TCP

When bit 03="1", the frequency converter has tripped and requires a reset signal before it can start.

Bit 04, ON 2/OFF 2 When bit 01 of the Control word is "0", then bit 04="0". When bit 01 of the Control word is "1", then bit 04="1".

Bit 05, ON 3/OFF 3 When bit 02 of the Control word is "0", then bit 05="0". When bit 02 of the Control word is "1", then bit 05="1".

Bit 06, Start possible/Start not possible If PROFIdrive has been selected in 8-10 Control Word Profile, bit 06 will be "1" after a switch-off acknowledgment, after activation of OFF2 or OFF3, and after switching on the mains voltage. Start not possible is reset, with bit 00 of the Control word being set to "0" and bit 01, 02 and 10 being set to "1".

Bit 07, No warning/Warning Bit 07=“0” means that there are no warnings. Bit 07=“1” means that a warning has occurred.

Bit 08, Speed≠reference/Speed=reference When bit 08="0", the current speed of the motor deviates from the set speed reference value. This may occur, for example, when the speed is being changed during start/ stop through ramp up/down. When bit 08="1", the current speed of the motor corresponds to the set speed reference value.

Bit 09, Local operation/Bus control Bit 09="0" indicates that the frequency converter has been stopped with the stop button on the LCP, or that [Linked to hand] or [Local] has been selected in 3-13 Reference Site. When bit 09="1", the frequency converter can be controlled through the serial interface.

Bit 10, Out of frequency limit/Frequency limit OK When bit 10="0", the output frequency is outside the limits set in 4-52 Warning Speed Low and 4-53 Warning Speed High. When bit 10="1", the output frequency is within the indicated limits.

Bit 11, No operation/Operation When bit 11="0", the motor does not turn. When bit 11="1", the frequency converter has a start signal, or the output frequency is higher than 0 Hz.

Bit 12, Drive OK/Stopped, autostart

When bit 12="0", there is no temporary overloading of the

inverter.

When bit 12="1", the inverter has stopped due to

overloading. However, the frequency converter has not

switched off (trip) and will start again after the overloading

has ended.

Bit 13, Voltage OK/Voltage exceeded

When bit 13="0", the voltage limits of the frequency

converter are not exceeded.

When bit 13="1", the direct voltage in the intermediate

circuit of the frequency converter is too low or too high.

Bit 14, Torque OK/Torque exceeded

When bit 14="0", the motor torque is below the limit

selected in 4-16 Torque Limit Motor Mode and 4-17 Torque

Limit Generator Mode. When bit 14="1", the limit selected

in 4-16 Torque Limit Motor Mode or 4-17 Torque Limit

Generator Mode is exceeded.

Bit 15, Timer OK/Timer exceeded

When bit 15="0", the timers for the thermal motor

protection and thermal frequency converter protection

have not exceeded 100%.

When bit 15="1", one of the timers has exceeded 100%.

PROFIdrive State - Transition Diagram

4.3.3

In the PROFIdrive Control profile, the control bits 0 to 3

perform the basic start-up/power down functions, whereas

the control bits 4-15 perform application-oriented control.

Illustration 4.1 shows the basic state-transition diagram,

where control bits 0 to 3 control the transitions, and the

corresponding status bit indicates the actual state. The

black bullets indicate the priority of the control signals,

where fewer bullets indicate lower priority, and more

bullets indicate higher priority.

4 4

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How to Control MCA 122 Modbus TCP

Illustration 4.1 PROFIdrive State Transition Diagram

22 MG90P202 - VLT® is a protected Danfoss trademark

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How to Control MCA 122 Modbus TCP

4.4 Danfoss FC Control Profile

Illustration 4.2 8-10 Control Word Profile=Frequency Converter profile

Bit Bit value=0 Bit value=1 00 Reference value External selection LSB 01 Reference value External selection MSB 02 DC brake Ramp 03 Coasting No coasting 04 Quick stop Ramp 05 Hold output frequency Use ramp 06 Ramp stop Start 07 No function Reset 08 No function Jog 09 Ramp 1 Ramp 2 10 Data invalid Data valid 11 No function Relay 01 active 12 No function Relay 04 active 13 Parameter set-up Selection LSB 14 Parameter set-up Selection MSB 15 No function Reverse

Table 4.7 Control Word Bits

Explanation of control bits Bits 00/01 Bits 00 and 01 are used to choose between the four reference values, which are pre-programmed in 3-10 Preset Reference according to Table 4.8.

Programmed

ref. value

1 3-10 [0] 0 0 2 3-10 [1] 0 1 3 3-10 [2] 1 0 4 3-10 [3] 1 1

Table 4.8 Reference Values

Parameter Bit 01 Bit 00

Bit 02, DC brake

Bit 02=‘0’ leads to DC braking and stop. Braking current

and duration are set in 2-01 DC Brake Current and 2-02 DC

Braking Time. Bit 02=‘1’ leads to ramping, 3-41 Ramp 1

Ramp Up Time

Bit 03, Coasting

Bit 03=‘0’ causes the frequency converter to immediately

release the motor (the output transistors are "shut off"), so

that it coasts to a standstill.

Bit 03=‘1’ enables the frequency converter to start the

motor if the other starting conditions have been fulfilled.

NOTICE

In 8-50 Coasting Select a selection is made to define how

Bit 03 gates with the corresponding function on a digital

input.

Bit 04, Quick stop

Bit 04=‘0’ causes a stop, in which the motor speed is

ramped down to stop via 3-81 Quick Stop Ramp Time.

Bit 05, Hold output frequency

Bit 05=‘0’ causes the present output frequency (in Hz) to

freeze. The frozen output frequency can then be changed

only with the digital inputs (5-10 Terminal 18 Digital Input

to 5-15 Terminal 33 Digital Input) programmed to Speed up

and Speed down.

NOTICE

If Freeze output is active, the frequency converter can only

be stopped by the following:

Bit 03 Coasting stop

•

Bit 02 DC braking

•

Digital input (5-10 Terminal 18 Digital Input to

•

5-15 Terminal 33 Digital Input) programmed to DC braking, Coasting stop or Reset and coasting stop

Bit 06, Ramp stop/start

Bit 06=‘0’ causes a stop, in which the motor speed is

ramped down to stop via the selected ramp down

parameter.

Bit 06=‘1’ permits the frequency converter to start the

motor, if the other starting conditions have been fulfilled.

NOTICE

In 8-53 Start Select Start select a selection is made to define

how Bit 06 Ramp stop/start gates with the corresponding

function on a digital input.

4 4

NOTICE

In 8-56 Preset Reference Select select a selection is made to define how Bit 00/01 gates with the corresponding function on the digital inputs.

MG90P202 - VLT® is a protected Danfoss trademark 23

Bit 07, Reset

Bit 07=‘0’ no reset.

Bit 07=‘1’ resets a trip. Reset is activated on the leading

edge of the signal, that is, when changing from logic ‘0’ to

logic ‘1’.

Bit 08, Jog

Bit 08=‘1’ causes the output frequency to be determined

by 3-19 Jog Speed [RPM].

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How to Control MCA 122 Modbus TCP

Bit 09, Selection of ramp 1/2 Bit 09=‘0’ means that ramp 1 is active (3-40 Ramp 1 Type to

4.4.1 Status Word according to Frequency Converter Profile (STW)

3-47 Ramp 1 S-ramp Ratio at Decel. Start). Bit 09=‘1’ means that ramp 2 (3-50 Ramp 2 Type to 3-57 Ramp 2 S-ramp Ratio at Decel. Start) is active.

Bit 10, Data not valid/Data valid Is used to tell the frequency converter whether the control word is to be used or ignored. Bit 10=“0” causes the control word to be ignored, giving the opportunity to turn off the control word when updating/reading parameters. Bit 10=“1” causes the control word to be used. This function is relevant, because the control word is always

contained in the telegram, regardless of which type of

Illustration 4.3 8-10 Control Word Profile

telegram is used. Bit 11, Relay 01

Bit 11=‘0’ Relay not activated. Bit 11 = ‘1’ Relay 01 activated, provided Control word bit 11 has been chosen in 5-40 Function Relay.

Bit 12, Relay 02 Bit 12=‘0’ Relay 02 has not been activated. Bit 12=‘1’ Relay 02 has been activated, provided Control word bit 12 has been chosen in 5-40 Function Relay.

Bit 13/14, Selection of set-up Bits 13 and 14 are used to select one of 4 menu set-ups according to Table 4.9:

Set-up

1 0 0 2 0 1 3 1 0 4 1 1

Table 4.9 Menu Set-ups

Bit 14 Bit 13

Bit Bit value=0 Bit value=1 00 Control not ready Control ready 01 Drive not ready Drive ready 02 Coasting Enable 03 No error Trip 04 No error Error (no trip) 05 Reserved 06 No error Trip lock 07 No warning Warning 08 Speed ≠ reference Speed = reference 09 Local operation Bus control 10 Out of frequency limit Frequency limit ok 11 No operation In operation 12 Drive ok Stopped, auto start 13 Voltage ok Voltage exceeded 14 Torque ok Torque exceeded 15 Thermal ok Thermal exceeded

Table 4.10 Staus Word Bits

The function is only possible when Multi-Set-ups is selected in 0-10 Active Set-up.

Explanation of the status bits Bit 00, Control ready Bit 00=‘0’ means that the frequency converter has tripped. Bit 00=‘1’ means that the frequency converter controls are

NOTICE

In 8-55 Set-up Select a selection is made to define how Bit 13/14 gates with the corresponding function on the digital inputs.

ready, but that the power component is not necessarily receiving any power supply (in the event of external 24 V supply to controls).

Bit 01, Drive ready Bit 01=‘1’. The frequency converter is ready for operation.

Bit 15 Reverse Bit 15=‘0’ causes no reversing. Bit 15=‘1’ causes reversing.

Bit 02, Coasting stop Bit 02=‘0’. The frequency converter has released the motor. Bit 02=‘1’. The frequency converter can start the motor

NOTICE

In the factory setting reversing is set to digital in

8-54 Reversing Select. Bit 15 causes reversing only when Ser. communication, Logic AND or Logic OR is selected.

when a start command is given. Bit 03, No error/Trip

Bit 03=‘0’ means that the frequency converter is not in fault mode. Bit 03=‘1’ means that the frequency converter is tripped, and that a reset signal is required to re-establish operation.

Bit 04, No error/Error (no trip) Bit 04=‘0’ means that the frequency converter is not in fault mode.

24 MG90P202 - VLT® is a protected Danfoss trademark

Reverse Forward

Par.3-00 set to

(1) -max- +max

Max reference Max reference

Par.3-00 set to

(0) min-max

Max reference

Forward

Min reference

100%

(4000hex)

-100%

(C000hex)

(0hex)

Par.3-03 0 Par.3-03

Par.3-03

(4000hex)(0hex)

0% 100%

Par.3-02

130BA277.10

How to Control MCA 122 Modbus TCP

Bit 04=‘1’ means that there is a frequency converter error but no trip.

Bit 05, Reserved Bit 05 is not used in the status word.

Bit 06, No error/Trip lock Bit 06=‘0’ means that the frequency converter is not in fault mode. Bit 06 = ‘1’ means that the frequency converter is tripped, and locked.

Bit 07, No warning/Warning Bit 07=‘0’ means that there are no warnings. Bit 07=‘1’ means that a warning has occurred.

Bit 08, Speed≠ reference/Speed=reference Bit 08=‘0’ means that the motor is running, but that the present speed is different from the preset speed reference. For example, this might occur while the speed is being ramped up/down during start/stop. Bit 08=‘1’ means that the present motor speed matches the preset speed reference.

Bit 09, Local operation/Bus control Bit 09=‘0’ means that [Stop/Reset] is activated on the control unit, or that Local control in 3-13 Reference Site is selected. It is not possible to control the frequency converter via serial communication. Bit 09=‘1’ means that it is possible to control the frequency converter via the fieldbus/serial communication.

Bit 10, Out of frequency limit Bit 10=‘0’, if the output frequency has reached the value in

4-11 Motor Speed Low Limit [RPM] or 4-13 Motor Speed High Limit [RPM].

Bit 10=‘1’ means that the output frequency is within the defined limits.

Bit 11, No operation/In operation Bit 11=‘0’ means that the motor is not running. Bit 11=‘1’ means that the frequency converter has a start signal or that the output frequency is greater than 0 Hz.

Bit 12, Drive OK/Stopped, auto start Bit 12=‘0’ means that there is no temporary over temperature on the inverter. Bit 12=‘1’ means that the inverter has stopped because of over temperature, but that the unit has not tripped and resumes operation once the over temperature stops.

Bit 13, Voltage OK/Voltage exceeded Bit 13=‘0’ means that there are no voltage warnings. Bit 13=‘1’ means that the DC voltage in the frequency converter’s intermediate circuit is too low or too high.

Bit 14, Torque OK/Torque limit exceeded Bit 14=‘0’ means that the motor current is lower than the torque limit selected in 4-16 Torque Limit Motor Mode and 4-17 Torque Limit Generator Mode Torque limit. Bit 14=‘1’ means that the torque limit in 4-16 Torque Limit Motor Mode and 4-17 Torque Limit Generator Mode Torque limit has been exceeded. The nominal torque can be read in 16-16 Torque [Nm].

MG90P202 - VLT® is a protected Danfoss trademark 25

Bit 15, Thermal OK/limit exceeded Bit 15=‘0’ means that the timers for both motor thermal protection and frequency converter thermal protection, have not exceeded 100%. Bit 15=‘1’ means that one of the limits has exceeded 100%.

4.5 Reference Handling

4.5.1 Bus Speed Reference Value

0%=0 hex 100%=4000 hex

-100%=C000 hex

Depending of the setting of 3-00 Reference Range, the reference is scaled from – Max. to + Max. or from Min. to Max.

Illustration 4.4 Scaling of Reference Values

The actual reference [Ref. %] in the frequency converter depends on the settings in the following parameters:

1-23 Motor Frequency 1-25 Motor Nominal Speed 3-02 Minimum Reference 3-03 Maximum Reference

All references provided to the frequency converter are added to the total reference value. If a reference is to be controlled by the fieldbus only, ensure that all other reference inputs are zero.

This means that digital and analogue input terminals should not be used for reference signals. The default setting (0%) should be maintained for preset references in 3-10 Preset Reference.

4 4

How to Control MCA 122 Modbus TCP

CAUTION

If the bus speed reference is negative, and the control word contains a run reverse signal, the frequency converter will run clockwise (- to - is +).

MAV is scaled in the same way as the reference.

26 MG90P202 - VLT® is a protected Danfoss trademark

Parameters MCA 122 Modbus TCP

5 Parameters

5.1 Parameter Group 8-**

8-01 Control Site

Option: Function:

The setting in this parameter overrides the settings in 8-50 Coasting Select to 8-56 Preset Reference Select.

[0] Digital and

ctrl.word

[1] Digital only Control by using digital inputs only.

[2] Controlword only Control by using control word only.

8-02 Control Word Source

Option: Function:

None

[0] [1] FC RS485 [2] FC USB [3] Option A [4] Option B [5] Option C0 [6] Option C1 [30] External

Can

Control by using both digital input and control word.

NOTICE

This parameter cannot be adjusted while the motor is running.

Select the source of the control word: one of two serial interfaces or four installed options. During initial power-up, the frequency converter automatically sets this parameter to [3] Option A if it detects a valid fieldbus option installed in slot A. If the option is removed, the frequency converter detects a change in the configuration, sets 8-02 Control Word Source back to default setting RS-485, and the frequency converter trips. If an option is installed after initial power-up, the setting of 8-02 Control Word Source does not change, but the frequency converter trips and displays: Alarm 67 Option Changed. When retrofitting a bus option into a frequency converter, that did not have a bus option installed to begin with, take an ACTIVE decision to move the control to Bus based. This is done for safety reasons to avoid an accidental change.

8-03 Control Word Timeout Time

Range: Function:

1 s* [ 0.1 -

18000 s]

Enter the maximum time expected to pass between the reception of two consecutive telegrams. If this time is exceeded, it indicates that the serial communication has stopped. The function selected in 8-04 Control Word Timeout Functionis then carried out. A valid control word triggers the time-out counter.

8-04 Control Word Timeout Function

Select the time-out function. The time-out function activates when the control word fails to be updated within the time period specified in 8-03 Control Word Timeout Time.

Option: Function:

[0] Off Resumes control via serial bus (fieldbus or

standard) using the most recent control word.

[1] Freeze output Freezes output frequency until communi-

cation resumes.

[2] Stop Stops with auto restart when communi-

cation resumes.

[3] Jogging Runs the motor at JOG frequency until

communication resumes.

[4] Max. speed Runs the motor at maximum frequency until

communication resumes.

[5] Stop and trip Stops the motor, then resets the frequency

converter to restart: via the fieldbus, via [Reset], or via a digital input.

[7] Select setup 1 Changes the set-up upon reestablishment of

communication following a control word time-out. If communication resumes after a time-out, 8-05 End-of-Timeout Function defines whether to resume the set-up used before the time-out, or to retain the set-up endorsed by the time-out function.

[8] Select setup 2

[9] Select setup 3

[10] Select setup 4

[26] Trip

See [7] Select setup 1

NOTICE

To change the set-up after a time-out, the following configuration is required: Set 0-10 Active Set-up to [9] Multi set-up and select the relevant link in 0-12 This Set-up Linked to.

MG90P202 - VLT® is a protected Danfoss trademark 27

Parameters MCA 122 Modbus TCP

8-05 End-of-Timeout Function

Option: Function:

Select the action after receiving a valid control word following a time-out. This parameter is active only when 8-04 Control Timeout Function is set to [7] Set-up 1, [8] Set-up 2, [9]Set-up 3 or [10] Set-up 4.

[0] Hold set-up

[1] Resume set-upResumes the set-up active before the time-out.

Retains the set-up selected in 8-04 Control

Timeout Function and displays a warning, until 8-06 Reset Control Timeout toggles. Then the

frequency converter resumes its original set-up.

8-06 Reset Control Word Timeout

This parameter is active only when [0] Hold set-up has been selected in 8-05 End-of-Timeout Function.

Option: Function:

[0] Do not reset

[1] Do reset Returns the frequency converter to the original

Retains the set-up specified in 8-04 Control Word Timeout Function, following a control word time-out.

set-up following a control word time-out. The frequency converter performs the reset and then immediately reverts to the [0] Do not reset setting

8-10 Control Word Profile

Select the interpretation of the control and status words corresponding to the installed fieldbus. Only the selections valid for the fieldbus installed in slot A will be visible in the display. For guidelines in selection of [0] FC profile and [1] PROFIdrive profile refer to the Serial communication via RS-485 Interface section. For additional guidelines in the selection of [1] PROFIdrive profile,

[5] ODVA and [7] CANopen DSP 402, refer to the Operating Instructions for the installed fieldbus.

Option: Function:

[0] FC profile [1] PROFIdrive profile [5] ODVA [7] CANopen DSP 402 [8] MCO

8-13 Configurable Status Word STW

Option: Function:

This parameter enables configuration of

bits 12–15 in the status word. [0] No function [1] * Profile Default Function corresponds to the profile

default selected in 8-10 Control Profile. [2] Alarm 68 Only Only set in case of an Alarm 68. [3] Trip excl. Alarm68Set in case of a trip, except if Alarm 68

executes the trip.

8-13 Configurable Status Word STW

Option: Function:

[10] T18 DI status. The bit indicates the status of terminal 18.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[11] T19 DI status. The bit indicates the status of terminal 19.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[12] T27 DI status. The bit indicates the status of terminal 27.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[13] T29 DI status. The bit indicates the status of terminal 29.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[14] T32 DI status. The bit indicates the status of terminal 32.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[15] T33 DI status. The bit indicates the status of terminal 33.

“0” indicates that the terminal is low “1” indicates that the terminal is high

[16] T37 DI status The bit indicates the status of terminal 37.

”0” indicates T37 is low (safe stop) “1” indicates T37 is high (normal)

[21] Thermal

warning

[30] Brake fault

(IGBT)

[40] Out of ref.

range

[60] Comparator 0

[61] Comparator 1

[62] Comparator 2

[63] Comparator 3

[64] Comparator 4

[65] Comparator 5

[70] Logic Rule 0

The thermal warning turns on when the temperature exceeds the limit in the motor, the frequency converter, the brake resistor, or the thermistor. Output is Logic ‘1’ when the brake IGBT is short-circuited. Use this function to protect the frequency converter if there is a fault on the brake modules. Use the output/relay to cut out the main voltage from the frequency converter.

See parameter group 13-1* Comparators. If Comparator 0 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-1* Comparators. If Comparator 1 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-1* Comparators. If Comparator 2 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-1* Comparators. If Comparator 3 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-1* Comparators. If Comparator 4 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-1* Comparators. If Comparator 5 is evaluated as TRUE, the output goes high. Otherwise, it is low. See parameter group 13-4* Logic Rules. If Logic Rule 0 is evaluated as TRUE, the output goes high. Otherwise, it is low.

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Parameters MCA 122 Modbus TCP

8-13 Configurable Status Word STW

Option: Function:

[71] Logic Rule 1

[72] Logic Rule 2

[73] Logic Rule 3

[74] Logic Rule 4

[75] Logic Rule 5

[80] SL Digital

Output A

[81] SL Digital

Output B

[82] SL Digital

Output C

[83] SL Digital

Output D

[84] SL Digital

Output E

[85] SL Digital

Output F

See parameter group 13-4* Logic Rules. If

Logic Rule 1 is evaluated as TRUE, the

output goes high. Otherwise, it is low.

See parameter group 13-4* Logic Rules. If

Logic Rule 2 is evaluated as TRUE, the

output goes high. Otherwise, it is low.

See parameter group 13-4* Logic Rules. If

Logic Rule 3 is evaluated as TRUE, the

output goes high. Otherwise, it is low.

See parameter group 13-4* Logic Rules. If

Logic Rule 4 is evaluated as TRUE, the

output goes high. Otherwise, it is low.

See parameter group 13-4* Logic Rules. If

Logic Rule 5 is evaluated as TRUE, the

output goes high. Otherwise, it is low.

See 13-52 SL Controller Action. The output

goes high whenever the Smart Logic

Action [38] Set digital out A high is

executed. The output goes low whenever

the Smart Logic Action [32] Set digital out

A low is executed.

See 13-52 SL Controller Action. The input

goes high whenever the Smart Logic

Action [39] Set digital out B high is

executed. The input goes low whenever

the Smart Logic Action [33] Set digital out

B low is executed.

See 13-52 SL Controller Action. The input

goes high whenever the Smart Logic

Action [40] Set digital out C high is

executed. The input goes low whenever

the Smart Logic Action [34] Set digital out

C low is executed.

See 13-52 SL Controller Action. The input

goes high whenever the Smart Logic

Action [41] Set digital out D high is

executed. The input goes low whenever

the Smart Logic Action [35] Set digital out

D low is executed.

See 13-52 SL Controller Action. The input

goes high whenever the Smart Logic

Action [42] Set digital out E high is

executed. The input goes low whenever

the Smart Logic Action [36] Set digital out

E low is executed.

See 13-52 SL Controller Action. The input

goes high whenever the Smart Logic

Action [43] Set digital out F high is

executed. The input goes low whenever

the Smart Logic Action [37] Set digital out

F low is executed.

8-14 Configurable Control Word CTW

Option: Function:

Selection of control word bit 10, if it is active low or active high.

[0] None [1] Profile default [2] CTW Valid,

active low

[3] Safe Option

Reset

[4] PID error

inverse

[5] PID reset I

part

[6] PID enable When enabled, enables the extended process

When enabled, it inverts the resulting error from the process PID controller. Available only if "Configuration Mode" is set to "Surface Winder", "Extended PID Speed OL" or "Extended PID Speed CL".

When enabled, resets the I-part of the Process PID controller. Equivalent to 7-40 Process PID I-part Reset. Available only if "Configuration Mode" is set to "Surface Winder", "Extended PID Speed OL" or "Extended PID Speed CL".

PID controller. Equivalent to 7-50 Process PID Extended PID. Available only if "Configuration Mode" is set "Extended PID Speed OL" or "Extended PID Speed CL".

8-50 Coasting Select

Option: Function:

Select control of the coasting function via the terminals (digital input) and/or via the bus.

[0] Digital

input

[1] Bus Activates Start command via the serial

[2] Logic AND Activates Start command via the fieldbus/serial

[3] Logic OR Activates Start command via the fieldbus/serial

Activates Start command via a digital input.

communication port or fieldbus option.

communication port, AND additionally via one of the digital inputs.

communication port OR via one of the digital inputs.

8-51 Quick Stop Select

Select control of the Quick Stop function via the terminals (digital input) and/or via the bus.

Option: Function:

[0] Digital input [1] Bus [2] Logic AND [3] Logic OR

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Parameters MCA 122 Modbus TCP

8-52 DC Brake Select

Option: Function:

Select control of the DC brake via the terminals (digital input) and/or via the fieldbus.

NOTICE

Only selection [0] Digital input is available when 1-10 Motor Construction is set to [1] PM non-salient SPM.

[0] Digital

input

[1] Bus Activates Start command via the serial communi-

[2] Logic AND Activates Start command via the fieldbus/serial

[3] Logic OR Activates Start command via the fieldbus/serial

8-53 Start Select

Option: Function:

[0] Digital

input

[1] Bus Activates Start command via the serial

[2] Logic AND Activates Start command via the fieldbus/serial

[3] Logic OR Activates Start command via the fieldbus/serial

8-54 Reversing Select

Option: Function:

[0] Digital

input

[1] Bus Activates the Reverse command via the serial

[2] Logic AND Activates the Reverse command via the

[3] Logic OR Activates the Reverse command via the

Activates Start command via a digital input.

cation port or fieldbus option.

communication port, AND additionally via one of the digital inputs.

communication port OR via one of the digital inputs.

Select control of the frequency converter start function via the terminals (digital input) and/or via the fieldbus.

Activates Start command via a digital input.

communication port or fieldbus option.

communication port, AND additionally via one of the digital inputs.

communication port OR via one of the digital inputs.

Select control of the frequency converter reverse function via the terminals (digital input) and/or via the fieldbus.

communication port or fieldbus option.

fieldbus/serial communication port, AND additionally via one of the digital inputs.

fieldbus/serial communication port OR via one of the digital inputs.

8-55 Set-up Select

Option: Function:

Select control of the frequency converter set-up selection via the terminals (digital input) and/or via the fieldbus.

[0] Digital

input

[1] Bus Activates the set-up selection via the serial

[2] Logic AND Activates the set-up selection via the fieldbus/

[3] Logic OR Activate the set-up selection via the fieldbus/

Activates the set-up selection via a digital input.

communication port or fieldbus option.

serial communication port, AND additionally via one of the digital inputs.

serial communication port OR via one of the digital inputs.

8-56 Preset Reference Select

Option: Function:

Select control of the frequency converter Preset Reference selection via the terminals (digital input) and/or via the fieldbus.

[0] Digital

input

[1] Bus Activates Preset Reference selection via the

[2] Logic AND Activates Preset Reference selection via the

[3] Logic OR Activates the Preset Reference selection via the

Activates Preset Reference selection via a digital input.

serial communication port or fieldbus option.

fieldbus/serial communication port, AND additionally via one of the digital inputs.

fieldbus/serial communication port OR via one of the digital inputs.

5.2 Parameter Group 12-**

5.2.1 12-0* IP Settings

12-00 IP Address Assignment

Option: Function:

Selects the IP Address assignment method.

[0] * Manual

[1] DHCP IP-address is assigned via DHCP server. [2] BOOTP IP-address is assigned via BOOTP server.

12-01 IP Address

Range: Function:

[000.000.000.000 -

255.255.255.255]

IP-address can be set in 12-01 IP Address IP Address.

Configure the IP address of the option. Read-only if 12-00 IP Address Assignment set to DHCP or BOOTP.

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Parameters MCA 122 Modbus TCP

12-02 Subnet Mask

Range: Function:

[000.000.000.000 -

255.255.255.255]

Configure the IP subnet mask of the option. Read-only if 12-00 IP Address Assignment set to DHCP or BOOTP.

12-03 Default Gateway

Range: Function:

[000.000.000.000 –

255.255.255.255]

Configure the IP default gateway of the option. Read-only if 12-00 IP Address Assignment set to DHCP or BOOTP.

12-04 DHCP Server

Range: Function:

[000.000.000.000 –

255.255.255.255]

Read only. Displays the IP address of the found DHCP or BOOTP server.

NOTICE

A power-cycle is necessary after setting the IP parameters manually.

12-05 Lease Expires

Range: Function:

Size related* [ 0 - 0 ] Read only. Displays the lease-time left for

the current DHCP-assigned IP address.

12-06 Name Servers

Range: Function:

0 * [0 - 2147483647 ] IP addresses of Domain Name Servers.

Can be automatically assigned when using DHCP.

12-07 Domain Name

Range: Function:

0 [0 - 2147483647 ] Domain name of the attached network.

Can be automatically assigned when

using DHCP network.

12-08 Host Name

Range: Function:

Blank [0-19 characters] Logical (given) name of option.

12-09 Physical Address

Range: Function:

0 * [0 - 0 ] Read only. Displays the Physical (MAC) address of

the option.

5.2.2 12-1* Ethernet Link Parameters

Applies for whole parameter group.

Index [0] is used for Port 1 and Index [1] is used for Port 2. For EtherCAT, Index [0] is for In Port and Index [1] is for Out port.

12-10 Link Status

Option: Function:

Read only. Displays the link status of the Ethernet ports.

[0] No Link [1] Link

12-11 Link Duration

Range: Function:

Size related* [ 0 - 0 ] Read only. Displays the duration of the

present link on each port in dd:hh:mm:ss.

12-12 Auto Negotiation

Option: Function:

Configures Auto Negotiation of Ethernet link parameters, for each port: ON or OFF.

[0] Off

[1] On

Link Speed and Link Duplex can be configured in 12-13 Link Speed and 12-14 Link Duplex.

12-13 Link Speed

Option: Function:

Forces the link speed for each port in 10 or 100 Mbps. If 12-12 Auto Negotiation is set to: [ON], this parameter is read only and displays the actual link speed. “None” is displayed if no link

is present. [0] * None [1] 10 Mbps [2] 100 Mbps

12-14 Link Duplex

Option: Function:

Forces the duplex for each port to Full or Half duplex. If 12-12 Auto Negotiation is set to: [ON], this parameter is read only.

[0] Half Duplex [1] Full Duplex

NOTICE

In POWERLINK this parameter is locked to half duplex.

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Parameters MCA 122 Modbus TCP

5.2.3 12-2* Process Data

12-21 Process Data Config Write

Range: Function:

[[0 - 9] PCD read 0 - 9] Configuration of readable process

data.

In POWERLINK this parameter is read only. Same applies for 12-22 Process Data Config Read, 12-23 Process Data Config Write Size and 12-24 Process Data Config Read Size.

12-22 Process Data Config Read

Range: Function:

[[0 - 9] PCD read 0 - 9] Configuration of readable process

data.

12-27 Primary Master

Option: Function:

This parameter control allows fast swapping of masters. If this parameter is set 0.0.0.0, the first masters that access the frequency converter locks the interface for other masters. If the communication is lost, the frequency converter will hold the connection for 30 s before a second master can take control. By setting [0] IP address of first Master and setting [1] IP address of second Master, only these two masters can control the frequency converter and the second master does not have to wait 30 s to take control. Only one master may control the frequency converter at any time, otherwise the frequency converter might

malfunction. [0] * IP address of first Master. [1] IP address of second Master.

12-28 Store Data Values

Option: Function:

This parameter activates a function that stores all parameter values in the non-volatile memory (EEPROM) thus retaining parameter values at power-down.

The parameter returns to “Off”. [0] * Off The store function is inactive. [1] Store All

set-ups

12-29 Store Always

Option: Function:

[0] * Off [1] On

All parameter values are stored in the non-

volatile memory, in all 5 set-ups.

Activates function that always stores received parameter data in non-volatile memory (EEPROM).

5.2.4 Modbus TCP

12-40 Status Parameter

Range: Function:

Read only. Displays the Modbus TCP- specific 16-bit Status word.

0 * [0 - 0 ]

Bit Description Bit=[0] Bit=[1] 0 Link Status

port 1

1 Link Status

port 2 2 Link speed 0/10 Mbps 100 Mbps 3 Link Duplex Half Full 4 Port 502

communi-

cation 5 UNUSED - 6 Valid IP

address 7 Modbus

timeout (30 s) 8 Duplicate IP No Yes 9 Register 7

error 10 FTP server Disabled Enabled 11 HTTP server Disabled Enabled 12 SMTP service Disabled Enabled 13 Cable

diagnosis 14 Auto

crossover 15 IGMP

snooping

Table 5.1 Bit Descriptions

12-41 Slave Message Count

Range: Function:

Read only. Displays the number of Modbus messages received and processed by the slave.

0 * [0 - 0 ]

12-42 Slave Exception Message Count

Range: Function:

Read only. Displays the number of Modbus messages for which the slave has sent an exception response.

0 * [0 - 0 ]

Disconnected Connected

No Yes

Disabled Enabled

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Parameters MCA 122 Modbus TCP

5.2.5 12-8* Other Ethernet Services

12-80 FTP Server

Option: Function:

[0] Disabled Disables the built-in FTP server.

[1] Enabled Enables the built-in FTP server.

12-81 HTTP Server

Option: Function:

[0] Disabled [1] Enabled Enables the built-in HTTP (web) server.

12-82 SMTP Service

Option: Function:

[0] Disabled [1] Enabled Enables the SMTP (e-mail) service on the option.

12-89 Transent Socket Channel Port

Range: Function:

0* [0–9999] Configures the TCP port-number for the transent

socket channel. This enables Frequency convertertelegrams to be sent transently on Ethernet via TCP. Default value is 4000, 0 means disabled.

5.2.6 12-9* Advanced Ethernet Settings

12-90 Cable Diagnostic

Option: Function:

Enables/disables advanced Cable diagnosis function. If enabled, the distance to cable errors can be read out in 12-93 Cable Error Length. The parameter resumes to the default setting of Disable after the diagnostics have finished.

[0] Disabled [1] Enabled

NOTICE

The cable diagnostics function is only issued on ports where there is no link (see 12-10 Link Status, Link Status)

12-91 Auto Cross-Over

Option: Function:

[0] Disable Disables the auto cross-over function. [1] * Enable Enables the auto cross-over function.

NOTICE

Disabling of the auto cross-over function requires crossed Ethernet cables for daisy-chaining the options.

12-92 IGMP Snooping

Option: Function:

This prevents flooding of the Ethernet protocol stack by only forwarding multicast packets to ports

that are a member of the multicast group. [0] Disable Disables the IGMP snooping function. [1] * Enable Enables the IGMP snooping function.

12-93 Cable Error Length

Range: Function:

0 * [0 -

65535 ]

If Cable Diagnostics is enabled in 12-90 Cable Diagnostic, the built-in switch is possible via Time Domain Reflectometry (TDR). This measurement technique detects common cabling problems such as open circuits, short circuits, and impedance mismatches or breaks in transmission cables. The distance from the option to the error is displayed in meters with an accuracy of ±2 m. The value 0 means that no errors detected.

12-94 Broadcast Storm Protection

Range: Function:

-1 %* [-1 -

20 %]

-1 %* [-1 -

20 %]

The built-in switch is capable of protecting the switch system from receiving too many broadcast packages, which can use up network resources. The value indicates a percentage of the total bandwidth that is allowed for broadcast messages.

Example: The “OFF” means that the filter is disabled - all broadcast messages passes through. The value “0%” means that no broadcast messages passes through. A value of “10%” means that 10% of the total bandwidth is allowed for broadcast messages, if the amount of broadcast messages increases above the 10% threshold, they will be blocked.

12-95 Broadcast Storm Filter

Option: Function:

Applies to 12-94 Broadcast Storm Protection; if the Broadcast Storm Protection should also include Multicast telegrams.

[0] Broadcast only [1] Broadcast &

Multicast

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Parameters MCA 122 Modbus TCP

12-98 Interface Counters

Range: Function:

4000 * [0 - 4294967295 ] Read only. Advanced Interface

counters, from built-in switch, can be used for low-level troubleshooting, The parameter shows a sum of port 1+port 2.

12-99 Media Counters

Range: Function:

0 * [0 - 4294967295 ] Read only. Advanced Interface counters,

from built-in switch, can be used for low-level troubleshooting, The parameter shows a sum of port 1+port

5.3 Parameter List

Parameter Default value 4-set-up Change during

operation 8-0* General Settings 8-01 Control Site [0] Digital and ctrl.word All set-ups TRUE - Uint8 8-02 Control Word Source null All set-ups TRUE - Uint8 8-03 Control Word Timeout Time 1.0 s 1 set-up TRUE -1 Uint32 8-04 Control Word Timeout Function null 1 set-up TRUE - Uint8 8-05 End-of-Timeout Function [1] Resume set-up 1 set-up TRUE - Uint8 8-06 Reset Control Word Timeout [0] Do not reset All set-ups TRUE - Uint8 8-1* Ctrl. Word Settings 8-10 Control Word Profile [0] FC profile All set-ups TRUE - Uint8 8-13 Configurable Status Word STW [1] Profile default All set-ups TRUE - Uint8 8-14 Configurable Control Word CTW [1] Profile default All set-ups TRUE - Uint8 8-5* Digital/Bus 8-50 Coasting Select [3] Logic OR All set-ups TRUE - Uint8 8-51 Quick Stop Select [3] Logic OR All set-ups TRUE - Uint8 8-52 DC Brake Select [3] Logic OR All set-ups TRUE - Uint8 8-53 Start Select [3] Logic OR All set-ups TRUE - Uint8 8-54 Reversing Select [3] Logic OR All set-ups TRUE - Uint8 8-55 Set-up Select [3] Logic OR All set-ups TRUE - Uint8 8-56 Preset Reference Select [3] Logic OR All set-ups TRUE - Uint8

Conver-

sion index

Type

Table 5.2 Parameter Group 8-**

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Parameters MCA 122 Modbus TCP

Parameter Default Value Range Conversion Index Data Type Array 12-0* IP Settings 12-00 IP Address Assignment 0.0.0.0 0-255 - Unsigned 8 12-01 IP Address 0.0.0.0 0-255 - Oct. string 4 12-02 Subnet Mask 0.0.0.0 0-255 - Oct. string 4 12-03 Default Gateway 0.0.0.0 0-255 - Oct. string 4 12-04 DHCP Server 0.0.0.0 0-255 - Oct. string 4 12-05 Lease Expires 00:00:00:00 - - Time diff. w/date 12-06 Name Servers 0.0.0.0 0-255 - Oct. string 4 12-07 Domain Name - max. 19 ch. - Visible string 48 12-08 Host Name - max. 19 ch. - Visible string 48 12-09 Physical Address 00:1B:08:00:00:00 - - Visible string 17 12-1* Ethernet Link Parameters 12-10 Link Status [0] No Link [0 - 1] - Unsigned 8 [0-1] 12-11 Link Duration 00:00:00:00 - - Time diff. w/date [0-1] 12-12 Auto Negotiation [1] On [0-1] - Unsigned 8 [0-1] 12-13 Link Speed [0] None [0-2] - Unsigned 8 [0-1] 12-14 Link Duplex [1] Full Duplex [0-1] - Unsigned 8 [0-1] 12-2* Process Data 12-21 Process Data Config Write - - - Unsigned 16 [0-9] 12-22 Process Data Config Read - - - Unsigned 16 [0-9]

Oct. string 12-27 Master Address 0.0.0.0. 0-255 - 12-28 Store Data Values [0] Off [0-1] - Unsigned 8 12-29 Store Always [0] Off [0-1] - Unsigned 8 12-4* Modbus TCP 12-40 Status Parameter [0-1] 12-41 Slave Message Count 0 12-42 Slave Exception Message Count 0 12-8* Other Ethernet Services 12-80 FTP Server [0] Disable [0-1] - Unsigned 8 12-81 HTTP Server [0] Disable [0-1] - Unsigned 8 12-82 SMTP Service [0] Disable [0-1] - Unsigned 8 12-89 Transparent Socket Channel Port [0] Disable [0-1] - Unsigned 8 12-9* Advanced Ethernet Settings 12-90 Cable Diagnostic [0] Disable [0-1] - Unsigned 8 12-91 Auto Cross Over [0] Enable [0-1] - Unsigned 8 12-92 IGMP Snooping [0] Enable [0-1] - Unsigned 8 12-93 Cable Error Length 0 0-200 0 Unsigned 16 [0-1] 12-94 Broadcast Storm Protection 0 Off-20% - Unsigned 16 [0-1] 12-95 Broadcast Storm Filter [1] Enable [0-1] - Unsigned 8 [0-1] 12-98 Interface Counters 0 0-65535 - Unsigned 16 [0-10] 12-99 Media Counters 0 0 - 65535 - Unsigned 16 [0-11]

[4]

Table 5.3 Parameter Group 12-**

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Parameters MCA 122 Modbus TCP

5.4 Data Types

5.4.1 Data Types Supported by FC 102/FC 202/FC 302

The number to the left refers to a conversion figure, the one on the right to be used when writing or reading parameters.

Conversion index Conversion factor

67 1/60

6 1000000 5 100000 4 10000 3 1000 2 100 1 10 0 1

-1 0.1

-2 0.01

-3 0.001

-4 0.0001

-5 0.00001

-6 0.000001

Table 5.4 Conversion Index

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Troubleshooting MCA 122 Modbus TCP

6 Troubleshooting

6.1 Step-by-step Troubleshooting

Check: LEDs The option contains two LEDs to indicate the state of the device and the network. During normal operation the MS and at least one NS LED shows a constant green light.

State LED Description No power Off The device is un-powered Device operational Green: Solid green The device is operational

fault

Self test

No IP address Wink Yellow Flashing yellow Flash for 20 s

Red: Green: Yellow

Flashing red/ green

Steady yellow No IP address configured or obtained

The Modbus TCP option is in self-test mode

6 6

Table 6.1 MS: Module Status

State LED Description No IP-address (no power) Off No link present (or is un-powered) Connected Green: Solid green Link present; but nor winked and no ACD

Duplicate IP Red: Solid red

Self test

Device has been winked Yellow Flashing yellow Flash for 20 s Link present at 10 Mbps Yellow Steady yellow Link present; but nor winked and no ACD

Table 6.2 NS1+NS2: Network Status (one per port)

Red: Green

Check: Link Status The status of the Ethernet link cannot be directly identified

Flashing red/ green

If no server is connected, the parameter shows:

000.000.000.000.

The IP-address assigned to the device is already in use

The Modbus TCP option is in self-test mode

with the LEDs. Use 12-10 Link Status, to verify presents of the link. Use 12-11 Link Duration, to verify that the link is steady present. The parameter shows the duration of the present link, and preset to 00:00:00:00 if the link is broken.

Check: Cabling In rare cases of cabling mis-configuration, the option might show the presents of a link, but no communication is

6.2 Alarm Word and Warning Word

Alarm word and warning word are shown in the display in Hex format. If there is more than one warning or alarm, a sum of all warnings or alarms is shown. Warning word and alarm word are displayed in 16-90 Alarm Word to 16-95. For more information on the individual alarms and warnings, refer to the product relevant Design Guides.

running. Exchange the cable in doubt. Check: IP Address

Verify that the option has a valid IP address (refer to

3.1.1 IP Settings) in 12-01 IP Address. If the option has identified a duplicate IP Address NS LEDs lights steady red. If the option is set up for BOOTP or DHCP, verify that a BOOTP or DHCP server is connected in 12-04 DHCP Server.

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Troubleshooting MCA 122 Modbus TCP

NOTICE

The availability of the individual alarms and warnings are dependent on the frequency converter type.

Warning and Alarm Messages There is a clear distinction between alarms and warnings. If there is an alarm, the frequency converter enters a fault condition. After the cause for the alarm has been cleared, the master must acknowledge the alarm message in order to start operation of the frequency converter again. A warning, on the other hand, may appear when a warning condition arises, then disappear when conditions return to normal without interfering with the process.

Warnings All warnings within the frequency converter are represented by a single bit within a warning word. A warning word is always an action parameter. Bit status [0]

FALSE means no warning, while bit status [1] TRUE means warning. Each bit status has a corresponding text string message. In addition to the warning word message, the master also notifies via a change in the status word.

00000001 Service Trip, Read/Write 00000002 Reserved 00000004 Service Trip, Typecode/

00000008 Reserved 00000010 Reserved 00000020 No Flow 00000040 Dry Pump 00000080 End of Curve 00000100 Broken Belt 00000200 Discharge high 00000400 Start failed 00000800 Speed limit 00001000 Reserved 00002000 Reserved 00004000 Reserved 00008000 Reserved 00010000 Reserved 00020000 KTY error 00040000 Fans error 00080000 ECB error 00100000 Reserved 00200000 Reserved 00400000 Reserved 00800000 Reserved 01000000 Reserved 02000000 Reserved 04000000 Reserved 08000000 Reserved 10000000 Reserved 20000000 Reserved 40000000 PTC thermistor 80000000 Dangerous failure

Bit (Hex) Alarm word 2

(16-91 Alarm Word 2)

Sparepart

Table 6.3 Alarm Word 2

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Troubleshooting MCA 122 Modbus TCP

Bit (Hex) Warning word

(16-92 Warning Word) 00000001 Brake check 00000002 Power card over temperature 00000004 Earth fault 00000008 Control card over temperature 00000010 Control word timeout 00000020 Over current 00000040 Torque limit 00000080 Motor thermistor over temp. 00000100 Motor ETR over temperature 00000200 Inverter overloaded 00000400 DC link under voltage 00000800 DC link over voltage 00001000 DC link voltage low 00002000 DC link voltage high 00004000 Mains phase loss 00008000 No motor 00010000 Live zero error 00020000 10 V low 00040000 Brake resistor power limit 00080000 Brake resistor short circuit 00100000 Brake chopper fault 00200000 Speed limit 00400000 Fieldbus comm. fault 00800000 24 V supply fault 01000000 Mains failure 02000000 Current limit 04000000 Low temperature 08000000 Voltage limit 10000000 Encoder loss 20000000 Output frequency limit 40000000 Safe stop 80000000 Extended status word

Bit (Hex)

00000001 Start Delayed 00000002 Stop Delayed 00000004 Clock Failure 00000008 Firemode was active 00000010 Reserved 00000020 No Flow 00000040 Dry Pump 00000080 End of Curve 00000100 Broken Belt 00000200 Discharge high 00000400 Reserved 00000800 Reserved 00001000 Reserved 00002000 Reserved 00004000 Reserved 00008000 Reserved 00010000 Reserved 00020000 KTY warning 00040000 Fans warning 00080000 ECB warning 00100000 Reserved 00200000 Reserved 00400000 Reserved 00800000 Reserved 01000000 Reserved 02000000 Reserved 04000000 Reserved 08000000 Reserved 10000000 Reserved 20000000 Reserved 40000000 PTC thermistor 80000000 Reserved

Warning word 2

(16-93 Warning Word 2)

6 6

Table 6.4 Warning Word

Table 6.5 Warning Word 2

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Troubleshooting MCA 122 Modbus TCP

Bit (Hex) Extended status word

(16-94 Ext. Status Word) FC 202

only !! 00000001 Ramping 00000002 AMA Running 00000004 Start CW/CCW 00000008 Slow Down 00000010 Catch Up 00000020 Feedback high 00000040 Feedback low 00000080 Output current high 00000100 Output current low 00000200 Output frequency high 00000400 Output frequency low 00000800 Brake check OK 00001000 Braking max 00002000 Braking

00004000 Out of speed range 00008000 OVC active 00010000 AC brake 00020000 Password Timelock 00040000 Password Protection 00080000 Reference high 00100000 Reference low 00200000 Local Ref./Remote Ref. 00400000 Reserved 00800000 Reserved 01000000 Reserved 02000000 Reserved 04000000 Reserved 08000000 Reserved 10000000 Reserved 20000000 Reserved 40000000 Reserved 80000000 Reserved

00000001 Off 00000002 Hand/Auto 00000004 PROFIbus OFF1 active 00000008 PROFIbus OFF2 active 00000010 PROFIbus OFF3 active 00000020 Relay 123 active 00000040 Start Prevented 00000080 Control ready 00000100 Drive ready 00000200 Quick Stop 00000400 DC Brake 00000800 Stop 00001000 Stand By 00002000 Freeze Output Request 00004000 Freeze Output 00008000 Jog Request 00010000 Jog 00020000 Start Request 00040000 Start 00080000 Start Applied 00100000 Start Delay 00200000 Sleep 00400000 Sleep Boost 00800000 Running 01000000 Bypass 02000000 Fire Mode 04000000 Reserved 08000000 Reserved 10000000 Reserved 20000000 Reserved 40000000 Reserved 80000000 Reserved

FC 200 Extended status word 2

Bit (Hex)

(16-95)

FC 202 only !!

Table 6.6 Extended Status Word

40 MG90P202 - VLT® is a protected Danfoss trademark

Table 6.7 Extended Status Word 2

Index MCA 122 Modbus TCP

Index

Abbreviations........................................................................................... 4

Alarm Word............................................................................................. 37

Assumptions............................................................................................. 3

Background Knowledge....................................................................... 3

Cabling.............................................................................................. 33, 37

Configuration...................................................................... 27, 28, 32, 4

Control WordPROFIdrive Profile (CTW)........................................ 19

Conversion Index........................................................................... 35, 36

Data Type................................................................................................ 35

DC Backup................................................................................................. 3

DeviceNet.................................................................................................. 3

EMC Precautions................................................................................... 10

Ethernet.......................................................... 10, 11, 15, 31, 33, 35, 37

Frequency Converter Profile..................................................... 25, 24

Hardware.............................................................................................. iii, 3

Modbus

Conformance....................................................................................... 3

Exception Codes............................................................................... 18

Network.......................................................... 3, 10, 15, 31, 33, 37, 6, 8

Overview.................................................................................................... 5

Parameter Values.................................................................................. 18

Parameters......................................................................................... iv, 11

Profibus....................................................................................................... 3

PROFIdrive State - Transition Diagram......................................... 21

Reference................................................................ 23, 24, 25, 4, 23, 40

Safety.......................................................................................................... iii

Spanning Tree................................................................................... 4, 15

Status WordPROFIdrive Profile (STW)........................................... 20

Topology.................................................................................... 7, 8, 15, 7

Warning Word................................................................................. 39, 37

I/O................................................................................................................. 4

IGMP................................................................................................... 15, 33

Installation........................................................................................... iii, 3

Settings......................................................................................... 11, 35

Traffic.................................................................................................... 15

IP21/Type 1................................................................................................ 3

LED........................................................................................................... 4, 6

LEDs........................................................................................................... 37

Literature.................................................................................................... 3

Master....................................................................................................... 38

MG90P202 - VLT® is a protected Danfoss trademark 41

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130R0446 MG90P202 Rev. 2013-05-02

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Danfoss MCA 122 Modbus TCP Operating Instructions Manual

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