Danfoss VLT BACnet/IP MCA 125 Bedienungsanleitung

MAKING MODERN LIVING POSSIBLE

Installation Guide

VLT®BACnet/IP MCA 125

VLT®HVAC Drive FC 102

vlt-drives.danfoss.com

Contents

1 Introduction 2

1.1 Purpose of the Manual 2

1.2 Additional Resources 2

1.3 Product Overview 2

1.4 Approvals and Certications 2

1.5 Disposal 2

1.6 Symbols, Abbreviations, and Conventions 3

2 Safety 4

2.1 Safety Symbols 4

2.2 Qualied Personnel 4

2.3 Safety Precautions 4

3 Installation 6

3.1 Safety Instructions 6

3.2 EMC-compliant Installation 6

3.3 Grounding 6

3.4 Cable Routing 6

3.5 Topology 7

3.5.1 Topology Types 7

3.5.1.1 Star Topology 7

3.5.1.2 Line Topology 7

3.5.1.3 Ring/Redundant Topology 8

3.5.1.4 Recommended Design Rules 8

3.6 Mounting 8

3.7 Electrical Installation 10

3.8 Reassembling the Cover 11

3.9 Applying Power 11

3.10 Checking Network Cabling 12

4 Troubleshooting 13

4.1 Warnings and Alarms 13

4.2 Troubleshooting 13

4.2.1 LED Status 13

4.2.2 No Communication with the Frequency Converter 14

Index 15

Contents Installation Guide

1 Introduction

1.1 Purpose of the Manual

This installation guide provides information for the quick

installation of a VLT®BACnet/IP MCA 125 option in a VLT®

frequency converter.

The installation guide is intended for use by qualied

personnel. Users are assumed to be familiar with:

•VLT®frequency converter.

•BACnet/IP technology.

•BMS controller that is used as a master in the

system.

Read the instructions before installation and ensure that

the instructions for safe installation are observed.

VLT®is a registered trademark.

BACnet®is a registered trademark of ASHRAE.

1.2 Additional Resources

Resources available for the frequency converters and

optional equipment:

•The relevant frequency converter operating

instructions provide the necessary information for

getting the frequency converter up and running.

•The relevant frequency converter design guide

provides detailed information about capabilities

and functionality to design motor control

systems.

•The relevant frequency converter programming

guide provides greater detail on working with

parameters and many application examples.

•The VLT

BACnet/IP MCA 125 Installation Guide

provides information about installing the

BACnet/IP and troubleshooting.

•The VLT

BACnet/IP MCA 125 Programming Guide

provides information about conguring the

system, controlling the frequency converter,

parameter access, programming, troubleshooting,

and some typical application examples.

Supplementary publications and manuals are available

from Danfoss. See vlt-drives.danfoss.com/Support/Technical-

Documentation/ for listings.

1.3 Product Overview

1.3.1 Intended Use

This installation guide relates to BACnet/IP interface.

Ordering number:

•134B1586 (conformal coated).

The BACnet/IP interface is designed to communicate with

any system complying with the BACnet over Ethernet or

BACnet/IP standard. BACnet/IP provides users with the

network protocols to deploy standard Ethernet technology

for manufacturing and building automation applications

while enabling Internet and enterprise connectivity.

VLT®BACnet/IP MCA 125 is intended for use with:

•VLT®HVAC Drive FC 102

1.3.2 Items Supplied

When the eldbus option is not factory-mounted, the

following items are supplied:

•Fieldbus option

•LCP cradle

•Front covers (in various sizes)

•Stickers

•Accessories bag

•Strain relief (only for A1 and A2 enclosures)

•Installation guide

1.4 Approvals and Certications

More approvals and certications are available. For more

information, contact a local Danfoss partner.

1.5 Disposal

Do not dispose of equipment containing

electrical components together with

domestic waste.

Collect it separately in accordance with

local and currently valid legislation.

Introduction VLT®BACnet/IP MCA 125

1.6 Symbols, Abbreviations, and

Conventions

Abbreviation Denition

BMS Building management system

CIPTM Common industrial protocol

DHCP Dynamic host conguration protocol

EMC Electromagnetic compatibility

IP Internet protocol

LCP Local control panel

LED Light emitting diode

MAR Major recoverable fail

MAU Major unrecoverable fail

PC Personal computer

PLC Programmable logic controller

TCP Transmission control protocol

Table 1.1 Symbols and Abbreviations

Conventions

•Numbered lists indicate procedures.

•Bullet lists indicate other information and

description of illustrations.

•Italicized text indicates the following:

-Cross-reference.

-Link.

-Parameter name.

-Parameter option.

-Parameter group name.

•All dimensions are in metric values (imperial

values in brackets).

•An asterisk (*) indicates the default setting of a

parameter.

Introduction Installation Guide

2 Safety

2.1 Safety Symbols

The following symbols are used in this guide:

WARNING

Indicates a potentially hazardous situation that could

result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that could

result in minor or moderate injury. It can also be used to

alert against unsafe practices.

NOTICE

Indicates important information, including situations that

can result in damage to equipment or property.

2.2 Qualied Personnel

Correct and reliable transport, storage, installation,

operation, and maintenance are required for the trouble-

free and safe operation of the frequency converter. Only

qualied personnel are allowed to install or operate this

equipment.

Qualied personnel are dened as trained sta, who are

authorized to install, commission, and maintain equipment,

systems, and circuits in accordance with pertinent laws and

regulations. Also, the qualied personnel must be familiar

with the instructions and safety measures described in this

installation guide.

2.3 Safety Precautions

WARNING

HIGH VOLTAGE

Frequency converters contain high voltage when

connected to AC mains input, DC supply, or load sharing.

Failure to perform installation, start-up, and maintenance

by qualied personnel can result in death or serious

injury.

•Only qualied personnel must perform instal-

lation, start-up, and maintenance.

WARNING

UNINTENDED START

When the frequency converter is connected to AC mains,

DC supply, or load sharing, the motor may start at any

time. Unintended start during programming, service, or

repair work can result in death, serious injury, or

property damage. The motor can start with an external

switch, a eldbus command, an input reference signal

from the LCP or LOP, via remote operation using MCT 10

Set-up Software, or after a cleared fault condition.

To prevent unintended motor start:

•Press [O/Reset] on the LCP before

programming parameters.

•Disconnect the frequency converter from the

mains.

•Completely wire and assemble the frequency

converter, motor, and any driven equipment

before connecting the frequency converter to

AC mains, DC supply, or load sharing.

WARNING

DISCHARGE TIME

The frequency converter contains DC-link capacitors,

which can remain charged even when the frequency

converter is not powered. High voltage can be present

even when the warning LED indicator lights are o.

Failure to wait the specied time after power has been

removed before performing service or repair work can

result in death or serious injury.

•Stop the motor.

•Disconnect AC mains and remote DC-link

supplies, including battery back-ups, UPS, and

DC-link connections to other frequency

converters.

•Disconnect or lock PM motor.

•Wait for the capacitors to discharge fully. The

minimum waiting time is specied in the

chapter Safety in the operating instructions

supplied with the frequency converter.

•Before performing any service or repair work,

use an appropriate voltage measuring device to

make sure that the capacitors are fully

discharged.

Safety VLT®BACnet/IP MCA 125

WARNING

LEAKAGE CURRENT HAZARD

Leakage currents exceed 3.5 mA. Failure to ground the

frequency converter properly can result in death or

serious injury.

•Ensure the correct grounding of the equipment

by a certied electrical installer.

WARNING

EQUIPMENT HAZARD

Contact with rotating shafts and electrical equipment

can result in death or serious injury.

•Ensure that only trained and qualied personnel

perform installation, start-up, and maintenance.

•Ensure that electrical work conforms to national

and local electrical codes.

•Follow the procedures in this guide.

CAUTION

INTERNAL FAILURE HAZARD

An internal failure in the frequency converter can result

in serious injury when the frequency converter is not

properly closed.

•Ensure that all safety covers are in place and

securely fastened before applying power.

Safety Installation Guide

3 Installation

3.1 Safety Instructions

See chapter 2 Safety for general safety instructions.

3.2 EMC-compliant Installation

To obtain an EMC-compliant installation, follow the

instructions provided in the relevant frequency converter

operating instructions and design guide. Refer to the

BACnet/IP master manual from the BMS supplier for further

installation guidelines.

3.3 Grounding

•Ensure that all stations connected to the eldbus

network are connected to the same ground

potential. When there are long distances between

the stations in a eldbus network, connect the

individual station to the same ground potential.

Install equalizing cables between the system

components.

•Establish a grounding connection with low HF

impedance, for example by mounting the

frequency converter on a conductive backplate.

•Keep the ground wire connections as short as

possible.

•Electrical contact between the cable screen and

the frequency converter enclosure or ground is

not allowed in Ethernet installations. The RJ45

connector of the Ethernet interface provides an

electrical path for the burst transient to ground.

•To reduce burst transient, use high-strand wire.

3.4 Cable Routing

NOTICE

EMC INTERFERENCE

Use shielded cables for motor and control wiring, and

separate cables for eldbus communication, motor

wiring, and brake resistor. Failure to isolate eldbus

communication, motor, and brake resistor cables can

result in unintended behavior or reduced performance.

Minimum 200 mm (7.9 in) clearance between power,

motor, and control cables is required. For power sizes

above 315 kW (450 hp), increase the minimum distance

to 500 mm (20 in).

NOTICE

When the eldbus cable crosses a motor cable or a brake

resistor cable, ensure that the cables cross at an angle of

90°.

130BD866.11

≥200 mm (7.9 in)

1 Ethernet cable

290°crossing

Illustration 3.1 Cable Routing

Installation VLT®BACnet/IP MCA 125

3.5 Topology

3.5.1 Topology Types

The BACnet/IP MCA 125 option features a built-in Ethernet

switch with 2 Ethernet RJ45 connectors. Where the

enclosure protection rating if higher than IP2x, the

frequency converter may be equipped with two M12

connectors instead.

The module enables the connection of several BACnet/IP

options in a line topology as an alternative to a traditional

star topology.

The 2 ports are equal. If only 1 connector is used, either

port can be used.

3.5.1.1 Star Topology

130BE799.10

Illustration 3.2 Star Topology

3.5.1.2 Line Topology

In many installations, line topology enables simpler cabling

and the use of smaller or fewer Ethernet switches. The

BACnet/IP interface supports line topology with its 2 ports

and built-in Ethernet switch.

When line topology is used, take precautions to avoid

timeout in the BMS when more than 8 frequency

converters are installed in series. Each frequency converter

in the network adds a small delay to the communication

due to the built-in Ethernet switch. When the update time

is too short, the delay can lead to a timeout in the BMS.

Set the update time as shown in Table 3.1. The numbers

given are typical values and can vary from installation to

installation.

Numbers of frequency converters

connected in series Minimum update time [ms]

<8 2

8–16 4

16–32 8

>32 Large jitter can occur.

Table 3.1 Minimum Update Time

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

130BE800.10

Illustration 3.3 Line Topology

NOTICE

In line topology, activate the built-in switch by powering

all frequency converters, either by mains or a 24 V DC

option card.

NOTICE

Installing frequency converters of dierent power sizes in

line topology may result in unwanted power-o behavior

when using control word timeout (parameter 8-02 Control

Word Source to parameter 8-06 Reset Control Word

Timeout). Mount the frequency converters with the

longest discharge time rst in the line topology. In

normal operation, the frequency converters with bigger

power sizes have a longer discharge time.

Installation Installation Guide

3.5.1.3 Ring/Redundant Topology

130BE801.10

Illustration 3.4 Ring/Redundant Topology

Ring topology can increase the availability of an Ethernet

network.

For ring topology:

•Install a special switch (redundancy manager)

between the BMS controller and the frequency

converters.

•Congure the redundancy manager switch to

clearly dene the ports that connect to the ring.

When the ring is closed, the main redundancy manager

tests the ring for detects. If the redundancy manager

detects a fault in the ring, it recongures the ring into 2

lines instead. The transition time from ring topology into 2

lines can vary from 200 ms up to several seconds

depending on the components installed in the ring. Set

the timing of the BMS controller to ensure that the

transition time does not lead to a timeout fault.

NOTICE

For ring/redundant topology, ensure that the redundancy

manager switch supports the detection of loss of line

topology. The switch inside the BACnet/IP interface does

not support this detection, as the redundancy manager

has to perform this task.

3.5.1.4 Recommended Design Rules

•Pay special attention to active network

components when designing an Ethernet

network.

•For line topology, a small delay is added with

each additional switch in the line. For more

information, see Table 3.1.

•Do not connect more than 32 frequency

converters in series. To prevent unstable or faulty

communication, set the timing, if this limit is

exceeded.

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

AutomationDrive

VLT

Max. 32 drives

130BE802.10

Illustration 3.5 Recommended Design Rules

3.6 Mounting

1. Check whether the eldbus option is already

mounted in the frequency converter. If the option

is already mounted, go to step 6.

2. Remove the LCP or blind cover from the

frequency converter.

3. Use a screwdriver to remove the front cover and

the LCP cradle.

4. Mount the eldbus option with the Ethernet port

facing upwards for top cable entry (see

Illustration 3.7), or with the Ethernet port facing

downwards for bottom cable entry (see

Illustration 3.8).

5. Remove the knockout plate from the new LCP

cradle.

6. Mount the new LCP cradle.

Installation VLT®BACnet/IP MCA 125

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