Danfoss VLT 5000 Instrucciones de instalación y funcionamiento

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

MN.51.T1.02 - VLT is a registered Danfoss trademark

Foreword.......................................................................... 2

VLT 5000 DeviceNet card ............................................... 2

Configuring the VLT 5000 with RS Networx ............... 4

I/O communication with RS Logix 5000 ...................... 6

Explicit messages with RS Logix 5000......................... 8

MN.51.T1.02 - VLT is a registered Danfoss trademark2

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

NOTE!:

The examples do not describes all the

functions needed for a real application, for

example error handling.

The examples are based upon that a RS Logix5000

project has been created, and the 1756-DNB has

been added to the I/O configuration.

Details of some of the components/software:

VLT5000 with DeviceNet - Host chip version 2.9.

1756-DNB Series A Firmware Revision 3.3

RS Networx 2.11.51

RS Logix 2.25

■■

■Foreword

This application note describes how to set up

DeviceNet communication between a Danfoss VLT

5000 frequency converter and 1756-DNB DeviceNet

Scanner from Allen Bradley. It is assumed that you

have some knowledge of Control Logix 5550, the

1756-DNB Scanner and ladder logic.

This note describes:

●VLT 5000 DeviceNet card

●Configuring of the VLT 5000 with RS Networx

●I/O communication with RS Logix 5000

●Explicit messages with RS Logix 5000

Device status

LED

Revisions number

18115D

■■

■VLT 5000 DeviceNet card

The photo shows the DeviceNet card which can

be installed in VLT 5001 - 5500.

Network status

LED

Device status

LED

Network status

LED

Address switch and

baud rate setting

ON = 0

OFF = 1

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

MN.51.T1.02 - VLT is a registered Danfoss trademark

■■

■DeviceNet connection

■■

■DeviceNet termination

Termination resistors should be installed at each end

of the bus line.

The resistors must be mounted between terminal 2

CAN_L and terminal 4 CAN_H and should have the

following specification:

5 V+

4 CAN_H

3 drain

2 CAN_L

1 V–

red

white

bare

blue

black

1 2 3 4 5

121 Ohm, 1 % Metal film and 1/4 Watt

■LEDs

For the device status LED:

1. when the LED is off, the device is off

2. when the LED is green, the device is

operational

3. When the LED is flashing green, the device

is in standby

4. when the LED is flashing red, the device

detects a minor fault

5. when the LED is red, the device detects

an unrecoverable fault

6. when the LED is flashing red/green, the

device is self testing

For the network status LED:

1. when the LED is off, the network is non-

powered/not online

2. when the LED is flashing green, the

network is online but not connected

3. when the LED is green, the network is

online and connected

4. when the LED is flashing red, the network

has a connection time-out

5. when the LED is red, the network has a

critical link failure.

■Cable length

Transmission speed Max. total cable length [m]

125 kBaud 500

250 kBaud 250

500 kBaud 100

■■

■Cable specification

- Cross section: max. 0.78 mm2,

corresponding to AWG 18

- Cable type: twisted in pairs, 2 x 2 wires with

drain wire in center

- Screening: Copper-braided screen

or braided screen and foil screen

It is recommended to use the same cable type in

the entire network to avoid impedance mismatch.

■■

■Address and baud rate setting

Dip switch 1-6 set the VLT frequency converters

address and 7-8 the baud rate.

When setting the address/Mac ID you must ensure

that each device on the network has a unique

address. The address/Mac ID can be read in

parameter 918 Mac ID.

Switch 6 is the Most Significant Bit (MSB) and

Switch 1 is the Least Significant Bit (LSB).

If the address is to be set to 3, the dip switches

should be set as follow:

12345678

ON = 0

OFF = 1

Switch Settings for DeviceNet Module Baud Rate:

Baud Switch Switch

Rate Setting Setting

125kBPS 0 0

250kBPS 0 1

500kBPS 1 0

125kBPS 1 1

MN.51.T1.02 - VLT is a registered Danfoss trademark4

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

■Configuring the VLT 5000 with RS Networx

In this example we will only have one VLT 5000 set

up to address 4 and the Master (1756-DNB) set up

to address 0.

Start RS Networx and a new project.

First install the EDS file by using the EDS wizard

under TOOLS and IMPORT EDS FILE. The file can

be ordered from your local Danfoss sales company.

After you have powered up the system and

browsed for active nodes on the DeviceNet you

map the I/O area of the VLT 5000 DeviceNet card

to the 1756 DeviceNet Scanner.

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

MN.51.T1.02 - VLT is a registered Danfoss trademark

Double click on the 1756-DNB Scanner.

Click on Scanlist and add VLT 5000 from Available

Devices to the Scanlist.

Click on Input and if you click on AutoMap the I/O

area of VLT 5000 will be added to the first free area,

here I 0.0. This means that the Status word will be

read from the VLT 5000 to I/O area I:0.0 to I:0.15

and the Main Actual Reference to I:0.16 to I:0.32.

Do the same with the Output to map Control word

and reference.

Save the file and download the RS networx to the

Scanner.

■Configuring the VLT 5000 with RS Networx

Double click on the VLT 5000.

Click on EDS I/O default. Here is shown that VLT

5000 support Polled I/O.

The actual PPO type is type 1 using 4 byte Input

and 4 byte Output.

Parameter

904 Polled Size

Rx Polled Size

PPO1

PPO2

PPO3

PPO4

4 Bytes 4 Bytes

8 Bytes

4 Bytes

8 Bytes

4 Bytes

8 Bytes

The PPO type can be changed in parameter 904

PPO Selection.

The 4 byte Input is Status word and Main Actual

Value from the VLT 5000.

The 4 byte Output is Control word and reference to

the VLT 5000.

Click on OK

MN.51.T1.02 - VLT is a registered Danfoss trademark6

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

■■

■I/O communication with RS Logix 5000

Start RS Logix 5000 and a new project.

Make the I/O configuration and click on Controller

tags.

Click on Local:1:I and on Local 1:I.Data. Now you

can see the full input area of the DeviceNet system.

Local:1:I.Data[0] indicates mapping of status word

and Main Actual Reference. Choose to see the

format in Hex. See the status word in the DeviceNet

manual.

Example on status words from the VLT 5000 (par.

512 Telegram profile = FC Drive [1]):

Stand by: 0607 Hex

VLT running: 0F07 Hex Speed = ref.

VLT running: 0E07 Hex Speed ≠ref. i.e. ramping

Warning: 0F87 Hex

Status Word

Main Actual Reference

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

MN.51.T1.02 - VLT is a registered Danfoss trademark

■■

■I/O communication with RS Logix 5000

Click on Local:1:O and on Local 1:O.Data. Now

you can see the full Output area of the DeviceNet

system. Local:1:O.Data[0] indicates mapping of

Control word and reference.

To start the VLT 5000 when using FC Drive profile

(See par. 512) the start command should be 047C

Hex. The Reference goes from 0 – 4000 Hex,

corresponding to 0 –100 %.

Example on Control words to the VLT 5000 (par.

512 Telegram profile = FC Drive [1]):

Start: 047C Hex via ramp time in Par. 207

Stop: 043C Hex via ramp time in Par. 207

Coast: 0474 Hex

Quick Stop: 046C Hex via ramp time in Par. 212

Reversing: 847C

Remember by reversing to set par. 200 to both

direction and par. 506 to Bus [1].

Example on reference to the VLT 5000 (par. 202

High output frequency and 205 Max. reference = 50

Hz):

1000 Hex ~ 25 % reference = 12.5 Hz

2000 Hex ~ 50 % reference = 25.0 Hz

4000 Hex ~ 100 % reference = 50.0 Hz

Control WordReference

MN.51.T1.02 - VLT is a registered Danfoss trademark8

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

■■

■Explicit messages with RS Logix 5000

Click on Controller Tags and add a new tag called

MESSAGE1. This message will be set up to read

parameter 518 Data read-out: Frequency.

Click on box next to INT and in Select Data type

choose MESSAGE.

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

MN.51.T1.02 - VLT is a registered Danfoss trademark

■■

■Explicit messages with RS Logix 5000

Add a new tag called VLT_READOUT.

Click on box next to INT and in Select Data type

chose INT with an Array of 1.

Now all the Tags are created to read parameter 518

on address number 4.

MN.51.T1.02 - VLT is a registered Danfoss trademark10

VLT®5000 DeviceNet and Allen Bradley Control logix 5550

■■

■Explicit messages with RS Logix 5000

Under I/O configuration double click on 1756-DNB

Scanner.

Give the Scanner a name, for example Dnet and

click on OK.

Click on Main routine and add a new rung.

Click on the Input/Output tag and drag and drop a

MSG block to the rung.

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