EMRI LX449 Bedienungsanleitung

Voltage regulator for generators

April 2012 Instruction Manual

LX449

CAN addendum

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 2 of 8

Electronics

WARNINGS

The manual does not cover all technical details of the product. Specifications may be modified

by the manufacturer without notice. For further information, the manufacturer should be

contacted.

WARNING

The system should not be installed, operated, serviced or

modified

except by qualified personnel who understand

the danger of electric shock hazards and have read and

understood the user instructions

ELECTRICAL HAZARDOUS VOLTAGES

DANGEROUS DO NOT OPERATE WHEN

NOT FAMILIAR WITH GENERATORS

WARNING

Dangerous voltages are present at the voltage regulator

board. Accidental contact with live conductors could result

in serious electrical shock or electrocution.

Disconnect the power source before making repairs,

connecting test instruments, or

removing or making

connections to the voltage regulator or generator.

WARNING

Never work on a LIVE generator. Unless there is another

person present who can switch off the power supply or

stop the engine

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 3 of 8

Electronics

Table of contents

1. CAN-bus addendum LX449

1.1 CAN-bus 4

1.1.1 Introduction 4

1.1.2 Can connector layout 4

1.1.3 CAN heartbeat 5

1.1.4 CAN AVR measurements & status 5

1.1.5 CAN control 7

Appendix

A.1 Contact 8

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

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Electronics

1. CAN-bus addendum LX449

1.1 CAN-bus

1.1.1 Introduction

The LX449 AVR is equipped with a CAN bus interface. The CAN interface enables the user

to obtain detailed information about the AVR status, measured quantities and to adjust AVR

control setpoints.

The interface complies with CAN specification 2.0B. The AVR communication operates at a

transfer rate of 250kBit/s and uses standard frame (11-bit) message identifiers.

1.1.2 CAN connector layout

Terminate header next to the CAN connector. Shorting this header enables an 120W

termination resistor.

Diagram 1. CAN Connector

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 5 of 8

Electronics

1.1.3 CAN heartbeat

The AVR sends a heartbeat signal when the CAN bus interface is enabled and the AVR is

powered. This signal may be used to assess the proper functioning of the CAN bus

communication.

The heartbeat consists of a message with ID 0x70A and is sent every 250ms. The message

content is 1 byte long and alternating 0x05 or 0x85 .

Heartbeat

ID:0x70A

Byte

Description

Value

Remarks

0Alternating heartbeat 0x05 ~ 0x85

Table 1. CAN heartbeat

1.1.4 CAN AVR measurements & status

When the CAN bus is enabled and the AVR is powered a message containing AVR

measurements and the present AVR status is sent. The message with ID 0x18A is sent every

500ms. The definition of the 8 byte content is described in table 2 onwards.

AVR measurements & status

ID:0x18A

Byte

Description

Value

Unit

Remarks

Data Page

1-2

Indicates Data Page

1 - 7

Dependant on page number (see tables below)

Table 2. CAN measurements & status

AVR measurements & status – Page 1

ID:0x18A

Byte

Description

Value

Unit

Remarks

Data Page

Indicates Data Page

Generator Voltage MSB

0 -

65535

0.0 V

Generator Voltage LSB

Generator Current Phase U MSB

0 -

65535

0 A

Valid for 1000A:1A CT.

Generator Current Phase U LSB

Generator Current Phase W MSB

0 -

65535

0 A

Valid for 1000A:1A CT.

Generator Current Phase W LSB

Generator Temperature

0-255

0 ºC

KTY 84-130 on terminals TH-TH

Table 3. CAN measurements & status – Page 1

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 6 of 8

Electronics

AVR measurements & status – Page 2

ID:0x18A

Byte

Description

Value

Unit

Remarks

0 Data Page 2 Indicates Data Page

1 Excitation Current MSB 0 -

65535 0 mA Excitation current

2 Excitation Current LSB

3 Generator Frequency 0-255 0 Hz

4 Generator Power Factor 0-255 - 0-127 = 0 – 1 capacitive

127-255 = 1 – 0 inductive

Protections

Bitwise register

bit 0 Overvoltage 0-1 bit 1 = protection triggered

bit 1 Overcurrent 0-1 bit 1 = protection triggered

bit 2

Overexcitation

0-1

bit

1 = protection triggered

bit 3 Loss of Voltage Sensing 0-1 bit 1 = protection triggered

bit 4 Overtemperature AVR 0-1 bit 1 = protection triggered

bit 5 Overtemperature Generator 0-1 bit 1 = protection triggered

bit 6 Loss of Excitation 0-1 bit 1 = protection triggered

bit 7 Loss of Current Sensing 0-1 bit 1 = protection triggered

AVR status

Bitwise register

bit 0

Status LED

0-7

0 = off

1 = green

2 = green blink

3 = orange

4= orange blink

5 = red

5 = red blink

bit 1

bit 2

bit 3

Controlled Quantity

0-7

0 = idle

1 = voltage control

2 = current control

3 = transition U-I

4 = power factor control

bit 4

bit 5

bit 6

Mode of Control

0-3 0 = idle

1 = build-up

2 = normal control

bit 7

AVR temperature

0-255

0 ºC

Table 4. CAN measurements & status – Page 2

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 7 of 8

Electronics

1.1.5 CAN control

For special applications it is possible remote control the AVR setpoints and limits over the

CAN bus referred to as CAN control. This option is not enabled by default and must be factory

configured.

To realize CAN control a message with ID 0x40A must be sent at least every 1 seconds

complying with the content definition described in table 5.

When CAN control is activated, but the AVR has not received a valid control message for the

last 1 seconds, CAN control is automatically disabled and normal AVR control is resumed.

Active CAN control is visualized by the CAN status LED signaling continuous orange.

Be aware that when the user enables CAN control over the voltage and/or excitation setpoints,

adjustments to the respective potentiometers on the AVR will have no immediate effect. The

adjustments will only then be effective when CAN control is disabled and AVR control is

resumed again.

CAN control

ID:0x20A

Byte

Description

Value

Unit

Remarks

0 Generator voltage setpoint 0-255 V Phase - Neutral

1 Excitation current ratio setpoint 0-100 % Overexcitation limit

2 - - - not used

3 - - - not used

4 CAN control Bitwise CAN commandregister

bit 0 Activate CAN voltage setpoint 1 - 0 bit 1 = active

bit 1 - 0 bit not used

bit 2 - 0 bit not used

bit 3 - 0 bit not used

bit 4 Activate CAN excitation ratio setpoint 1 – 0 bit 1 = active

bit 5 - 0 bit not used

bit 6 - 0 bit not used

bit 7 - 0 bit not used

5 - - - not used

6 - - - not used

7 - - not used

Table 5. CAN control

Generator rewinding & repair. Voltage regulator products CAN Addendum LX449

Version : 19-12-2011 15:05:00 Page 8 of 8

Electronics

A.1 Contact

See our website www.emri.nl for local suppliers

Rafeining ehf

Hafnarfjordur - Iceland

Tel: +354 565 3049

Fax: +354 565 3048

E-mail: rafeining@rafeining.is

Internet: www.rafeining.is

Frydenbø Electric A/S

Bergen - Norway

Tel: + 47 55 34 91 00

Fax: + 47 55 34 91 10

E-mail: firma.f[email protected]

Internet: www.frydenbo.no

Myren & Co. AB

Askim - Sweden

Tel: +46 317481860

Fax: +46 317481870

E-mail: myren@myren.com

Internet: www.myren.com

Yneldo Electronics

Roodepoort - South Africa

Tel: +27(0)117637053

Fax: +27(0)117634212

E-mail: yneldo@yneldo.com

Internet: www.yneldo.com

KDU Technical Services

Sharjah - United Arab Emirates

Tel: +971-6-5575480

Fax: +971-6-5575490

E-mail: kdutech@kdutech.ae

Internet: www.kdutech.ae

Cyclect Electrical Engineering

Singapore

Tel: +65 6868 6013

Fax: +65 6863 6260

E-mail: heng.p@cyclect.com.sg

Internet: www.cyclect.com.sg

Marel Serwis

Szczezin-Mierzyn - Poland

Tel: +48 91 48 58 388

Fax: +48 91 48 79 948

E-mail: handel@marel.szczecin.pl

Internet: www.marel.szczecin.pl

An-Elec Sp. z o.o.

Gdynia - Poland

Tel: +48 58 668 44 00

Fax: +48 58 668 44 66

E-mail: info@an-elec.pl

Internet: http://an-elec.pl

MJR Controls

Stockton on Tees - United Kingdom

Tel: +44 1642 762 151

Fax: +44 1642 762 502

Email: chris.milner@mjrcontrols.com

Internet: www.mjrcontrols.com

Stavros Kassidiaris S.A.

Piraeus - Greece

Tel: +30 210 4636000

Fax: +30 210 4624471

E-mail: info@kassidiaris.gr

Internet: www.kassidiaris.gr

Manufacturer:

EMRI Electronics B.V.

Morsestraat 10

6716 AH, Ede, Netherlands

Tel: (+31) 0318 620427

Fax: (+31) 0318 634615

Website: www.emri.nl

E-mail: info@emri.nl

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