Danfoss VLT 2800 Manuale utente

VLT®2800 / FCD 300 DeviceNet

■Contents

Introduction ....................................................................................................... 3

About this manual .................................................................................................. 3

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

What you should already know .............................................................................. 3

Available literature .................................................................................................. 4

Supplied with the unit ............................................................................................ 4

Product and Environment ...................................................................................... 5

Network ................................................................................................................. 5

User Profile ............................................................................................................ 5

Interface to DeviceNet Network ............................................................................. 5

Data Communication Interface ............................................................................... 5

Overall Function ..................................................................................................... 5

Control Card Self-test ............................................................................................ 5

Technical Data .................................................................................................. 6

Cable Lengths ........................................................................................................ 6

Topology ................................................................................................................ 6

Cable Specifications ............................................................................................... 6

Network Power Supply ......................................................................................... 6

Cable Cross Section .............................................................................................. 6

EMC Precautions ................................................................................................... 7

VLT Response Time ............................................................................................... 8

Electrical Installation .................................................................................... 9

VLT 2800 Connection of the Cable Screen ........................................................... 9

VLT 2800 Earth Connection ................................................................................... 10

VLT 2800 DeviceNet Connection ........................................................................... 10

FCD 300 Electrical connection ............................................................................... 11

User Interface ......................................................................................................... 12

Quick Setup ........................................................................................................... 13

Master-Slave configuration ....................................................................... 14

Drive Profile ....................................................................................................... 15

I/O Assembly Instances ......................................................................................... 15

Control Word and Status Word under

Instance 20/70 ....................................................................................................... 16

Control Word and Status Word

under Instance 21/71 ............................................................................................. 17

Bus speed reference value, under Instance 20/70 and 21/71 ............................... 19

Actual output speed, under Instance 20/70

and 21/71 ............................................................................................................. 19

Control Word and Status Word under Instance 100/150 and 101/151 ................. 20

Bus reference value ............................................................................................... 23

Actual output frequency ......................................................................................... 23

Process Data, PCD ................................................................................................ 24

DeviceNet object classes ........................................................................... 25

Class Code 0x01 ................................................................................................... 25

MG.90.B2.02 - VLT is a registered Danfoss trade mark 1

VLT®2800 / FCD 300 DeviceNet

Class Code 0x02 ................................................................................................... 25

Class Code 0x03 ................................................................................................... 25

Class Code 0x04 ................................................................................................... 26

Class Code 0x05 ................................................................................................... 26

Class Code 0x28 ................................................................................................... 30

Class Code 0x29 ................................................................................................... 31

Class Code 0x2A ................................................................................................... 32

Danfoss Classes .................................................................................................... 33

DeviceNet Operation Mode ........................................................................ 34

Bit Strobe ............................................................................................................... 34

Polling .................................................................................................................... 35

Change of State, COS ........................................................................................... 35

EDS Files............................................................................................................. 36

VLT 2800 US version with DeviceNet .................................................................... 36

VLT 2800 European version with DeviceNet .......................................................... 36

FCD 300 European version with DeviceNet ........................................................... 37

Programming .................................................................................................... 38

Special Attention .................................................................................................... 38

Warning and Alarm Messages ............................................................................... 45

Abbreviations ......................................................................................................... 46

Factory settings - VLT 2800 .................................................................................. 47

Factory settings - FCD 300 .................................................................................... 55

Additional control features for VLT 2800 ............................................ 62

MG.90.B2.02-VLTisaregisteredDanfosstrademark

VLT®2800 / FCD 300 DeviceNet

Introduction

■Introduction

■About this manual

This manual is intended to be used both as an

instructional and as a reference manual. It only

briefly touches on the basics of the DeviceNet

protocol. Whenever it is necessary for gaining

an understanding of the AC Drive Profile, please

refer to the ODVA version 2.0.

The manual is also intended to serve as a

guideline when you specify and optimize your

communication system.

Even if you are an experienced DeviceNet programmer,

we suggest that you read this manual in its entirety

before you start programming, since important

information can be found in all chapters.

■Assumptions

This manual assumes that you are using a DANFOSS

VLT 2800 or FCD 300 unit with DeviceNet. It is

also assumed that you are using a PLC or PC, as a

master, that is equipped with a serial communication

card supporting all the DeviceNet communication

services required by your application. Further more

it is assumed that all requirements stipulated in the

DeviceNet standard as well as those set up in the

AC Drive Profile and those pertaining to the VLT

Variable Speed Drive are strictly observed as well

as all limitations therein fully respected.

■What you should already know

The DANFOSS DeviceNet is designed to communicate

with any master abiding by the DeviceNet standard.

It is therefore assumed that you have full knowledge

of the PC or PLC you intend to use as a master

in your system. Any questions pertaining to

hardware or software produced by any other

manufacturer is beyond the scope of this manual

and is of no concern to DANFOSS.

If you have questions about how to set up master

- master communication or communication to

a non-Danfoss slave, the appropriate manuals

should be consulted.

MG.90.B2.02 - VLT is a registered Danfoss trade mark 3

VLT®2800 / FCD 300 DeviceNet

■Available literature

■Supplied with the unit

Below is a list of the literature available for VLT 2800

and FCD 300. It must be noted that there may be

deviations from one country to the next.

Supplied with the unit:

Operating instructions ....................................................................................................................... MG.28.AX.YY

Quick setup ....................................................................................................................................... MG.28.AX.62

Parameter list ................................................................................................................................... MG.28.DX.YY

Various literature:

Design Guide for VLT 2800 .............................................................................................................. MG.28.EX.YY

Data sheet for VLT 2800 .................................................................................................................. MD.28.AX.YY

Design Guide for FCD 300 ............................................................................................................... MG.04.AX.YY

Data sheet for FCD 300 ................................................................................................................... MD.04.AX.YY

Instructions for VLT 2800:

Assembly/disassembly ....................................................................................................................... MI.28.A1.02

LCP remote-mounting kit ................................................................................................................... MI.56.AX.51

Filter instruction .................................................................................................................................. MI.28.B1.02

Communication with VLT 2800 and FCD 300:

Profibus manual ................................................................................................................................ MG.90.AX.YY

VLT 2800 DeviceNet manual ............................................................................................................ MG.90.BX.YY

X = version number

YY = language version

MG.90.B2.02-VLTisaregisteredDanfosstrademark

VLT®2800 / FCD 300 DeviceNet

Introduction

■Product and Environment

DeviceNet is a distributed control network. The

DeviceNet protocol is embedded in the control card

and is a communication protocol conforming to the

Open DeviceNet Vendor Association (ODVA) standard.

The control card allows DeviceNet compatible

controllers, sensors, and network management

tools to control, monitor, and supervise the

VLT frequency converter. The control card is

designed to the DeviceNet System Protocol for

Vendors as a slave device.

■Network

The VLT frequency converter will function as a slave

on the DeviceNet network. All addressing and linking

to nodes is done at installation time by a network

manager tool. The network installer and the network

management master have a significant influence on

how the node functions on the network. A DeviceNet

network can support up to 64 nodes.

■User Profile

The end-user is a network manager programmer

or a controller who see the DeviceNet control

card as a transparent bridge to the VLT frequency

converter. Control and supervision of the VLT

frequency converter will still be possible through

the standard parameter set.

■Interface to DeviceNet Network

The Interface connection to the DeviceNet network is

implemented through a CAN chip. Four different I/O

Assembly is available in the VLT frequency converter

DeviceNet interface, which can be configured by

the user. The I/O assembly can handle Polled

mode, Bit Strobe, Change of state (COS) and

Cyclic. For explicit messages, the interface has two

Unconnected Messages Manager (UCMM) available.

This allows two nodes on the DeviceNet to directly

access parameters in the VLT frequency converter

without involving a pre-configured master.

■Data Communication Interface

No direct data communication interface (e.g. via a

serial port) other than the DeviceNet interface and the

VLT frequency converter interface is considered.

LCP2 or Dialog can be used on the Sub D

plug while using DeviceNet.

■Overall Function

DeviceNet is a low-level network that standardizes

communications between industrial devices (sensors,

limit switches) and high level devices (controllers).

The communication network can be peer to peer or

master/slave. DeviceNet uses CAN technology for

Media Access Control and Physical Signaling and it

supports up to 64 nodes. DeviceNet also defines

device profiles for devices belonging to specific

classes. For other devices, a custom class must be

defined in order to make it DeviceNet compatible.

This further enhances the interchangeability and

interoperability of the network. Each node on the

network has its own unique media access control

identifier (MAC ID) to distinguish it on the network.

■Control Card Self-test

Please refer to parameter 620 in the

Programming chapter.

MG.90.B2.02 - VLT is a registered Danfoss trade mark 5

VLT®2800 / FCD 300 DeviceNet

■Technical Data

■Cable Lengths

Drop LengthBaud Rate Max. total cable length [m]

Maximum Cumulative

125k baud 500 meters (1640 ft.) 156meters(512ft.)

250k baud 250 meters (820 ft.) 78 meters (256 ft.)

500k baud 100 meters (328 ft.)

6 meters (20 ft.)

for one drop 39 meters (128 ft.)

■Topology

■Cable Specifications

The cable is to be used according to ODVA

specifications.

■Network Power Supply

The DeviceNet option is an optically isolated node,

where transceiver power is provided by the network.

External network power supply requirements are:

11 - 25 VDC

10 mA draw per VLT frequency converter node.

■Cable Cross Section

MG.90.B2.02-VLTisaregisteredDanfosstrademark

VLT®2800 / FCD 300 DeviceNet

Technical Data

■EMC Precautions

The following EMC precautions are recommended to

obtain interference free operation of the DeviceNet

network. Additional information on EMC can be

found in the FCD 300 and in the VLT 2800 Series

Operating Instructions and Design Guide.

NB!:

Relevant national and local regulations,

for example regarding protective earth

connection, must be observed

The DeviceNet communication cable must be

kept away from motor and brake resistor cables

to avoid coupling of high frequency noise from

one cable to the other. Normally a distance of

200 mm (8 inches) is sufficient, but it is generally

recommended to keep the greatest possible distance

between the cables, especially where cables are

running in parallel over long distances.

If the DeviceNet cable has to cross a motor

and brake resistor cable they must cross each

other at an angle of 90 .

Example: VLT 2800 panel mounting

MG.90.B2.02 - VLT is a registered Danfoss trade mark 7

VLT®2800 / FCD 300 DeviceNet

■VLT Response Time

The update time via the DeviceNet connection

can be divided into two parts:

1. The communication time, which is the time it

takes to transmit data from the master to the

slave (VLT with DeviceNet option).

2. The internal update time, which is the time it

takes to transmit data between the VLT frequency

converter control card and the DeviceNet interface.

Communication time (tcom) depends on the actual

transmission speed (baudrate) and the type of master

in use. More slaves or lower transmission speed

will increase the communication time.

Data Update

time, tint

Control word via I/O instances 14 msec

Main actual value via I/O instances 44 msec

Status word via I/O instances 14 msec

Reference via I/O instances 44 msec

Control via Class Code 0x29 14 msec

ReferenceviaClassCode0x2A 44msec

Change of parameter via Explicit

message and Danfoss Object

94 msec

Read of parameter via Explicit message

and Danfoss Object

14 msec

MG.90.B2.02-VLTisaregisteredDanfosstrademark

VLT®2800 / FCD 300 DeviceNet

Electrical Installation

■Electrical Installation

■VLT 2800 Connection of the Cable Screen

Danfoss recommends that the screen of the DeviceNet

cable be connected to ground at both ends of

the cable at every DeviceNet station (see Danfoss

recommendation for further details).

It is very important to have a low impedance ground

connection of the screen, also at high frequencies.

This can be obtained by connecting the surface

of the screen to ground, for example by means of

a cable clamp or a conductive cable gland. VLT

frequency converter Series are provided with different

clamps and brackets to enable a proper ground

connection of the DeviceNet cable screen. The

screen connection is shown in the drawing.

For fulfilling the CE and EMC compliance.

VLT 2800 ODVA recommendation

Screen must be connected to ground at only

one point on the network.

NB!:

Please note, that this recommendation conflicts

with the EMC correct installation.

MG.90.B2.02 - VLT is a registered Danfoss trade mark 9

VLT®2800 / FCD 300 DeviceNet

■VLT 2800 Earth Connection

It is important that all stations connected to the

DeviceNet network are connected to the same earth

potential. The earth connection must have a low HF

(high frequency) impedance. This can be achieved

by connecting a large surface area of the cabinet to

ground, for example by mounting the VLT frequency

converter on a conductive rear plate. Especially

when having long distances between the stations

in a DeviceNet network it can be necessary to use

additional potential equalizing cables, connecting the

individual stations to the same earth potential.

■VLT 2800 DeviceNet Connection

It is essential that the bus line be terminated properly.

Amis

match of impedance may result in reflections

on the line that will corrupt data transmission.

The DeviceNet control card is provided with

a pluggable connector.

By using a pluggable connector as a splice between

two trunk lines, removal of devices will not sever the

network. Strain relief, if required, must be provided by

the developer. In current installations of this type of

connector, the strain relief is attached to the product.

NB!:

Wires should not be installed while the

network is active. This will prevent problems

such as shorting the network supply or

disrupting communications.

VLT 2800 Drop cable

An alternative to splicing two trunk lines in the

connector on the control card, is using a DeviceNet

connection box or a T-connector. For this kind of

installation a drop cable is available as an option.

Drop cable ordering number: 195N3113

NB!:

Please note, that terminal 46 has been removed

from the DeviceNet card, meaning that

parameter 341-342 are not having any function.

MG.90.B2.02-VLTisaregisteredDanfosstrademark

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