Heinzmann LMG-IF 02 User manual

Heinzmann GmbH & Co. KG
Engine & Turbine Controls
Am Haselbach 1
D-79677 Schönau (Schwarzwald)
Germany
Phone [phone]
Fax [phone]
E-mail [email protected]
www.heinzmann.com
V.A.T. No.: DE145551926
HEINZMANN®
Electronic Speed Governor
Load Share Interface Unit
LMG-IF 02
Copyright 2006 by Heinzmann GmbH & Co. KG. All rights reserved. This document may not be reproduced or handed on to third parties.
Manual E 96 002-e / 05-06

Read this entire manual and all other publications appertaining to the
work to be performed before installing, operating or servicing your
equipment.
Practice all plant and safety instructions and precautions.
Failure to follow instructions may result in personal injury and/or dam-
age to property.
HEINZMANN will refuse all liability for injury or damage which re-
sults from not following instructions
Please note before commissioning the installation:
Before starting to install any equipment, the installation must have been
switched dead!
Be sure to use cable shielding and power supply connections meeting
the requirements of the European Directive concerning EMI.
Check the functionality of the existing protection and monitoring sys-
tems.
To prevent damages to the equipment and personal injuries, it is
imperative that the following monitoring and protection systems
have been installed:
Overspeed protection acting independently of the speed governor
Overtemperature protection
HEINZMANN will refuse all liability for damage which results from
missing or insufficiently working overspeed protection
Generator installation will in addition require:
Overcurrent protection
Protection against faulty synchronization due to excessive frequency,
voltage or phase differences
Reverse power protection
Overspeeding can be caused by:
Failure of the voltage supply
Failure of the actuator, the control unit or of any accessory device
Sluggish and blocking linkage
Warning
Danger
Danger
Danger!
High
Voltage
Danger

Electronically controlled injection (MVC) will in addition require
to observe the following:
With Common Rail systems a separate mechanical flow limiter must
be provided for each injector pipe.
With Pump-Pipe-Nozzle (PPN) and Pump Nozzle (PNE) systems fuel
release may be enabled only by the movement of control piston of the
solenoid valve. This is to inhibit fuel from being delivered to the injec-
tion nozzle in case of seizure of the control piston.
The examples, data and any other information in this manual are in-
tended exclusively as instruction aids and should not be used in any
particular application without independent testing and verification by
the person making the application.
Independent testing and verification are especially important in any ap-
plication in which malfunction might result in personal injury or dam-
age to property.
HEINZMANN make no warranties, express or implied, that the exam-
ples, data, or other information in this volume are free of error, that
they are consistent with industry standards, or that they will meet the
requirements for any particular application.
HEINZMANN expressly disclaim the implied warranties of merchant-
ability and of fitness for any particular purpose, even if HEINZMANN
have been advised of a particular purpose and even if a particular pur-
pose is indicated in the manual.
HEINZMANN also disclaim all liability for direct, indirect, incidental
or consequential damages that result from any use of the examples,
data, or other information contained in this manual.
HEINZMANN make no warranties for the conception and engineering
of the technical installation as a whole. This is the responsibility of the
user and of his planning staff and specialists. It is also their responsibil-
ity to verify whether the performance features of our devices will meet
the intended purposes. The user is also responsible for correct commis-
sioning of the total installation.
Warning
Warning
Danger

Contents
Load Share Interface Unit LMG-IF 02
Contents
Page
1 Safety Instructions and Related Symbols............................................................................ 1
1.1 Basic Safety Measures for Normal Operation................................................................. 2
1.2 Basic Safety Measures for Servicing and Maintenance .................................................. 2
1.3 Before Putting an Installation into Service after Maintenance and Repair Works.......... 3
2 Application and Mode of Function...................................................................................... 4
3 Block Diagram....................................................................................................................... 5
4 Specifications ......................................................................................................................... 6
5 Electrical Connection............................................................................................................ 7
6 Adjustments........................................................................................................................... 8
7 Ordering Specification.......................................................................................................... 9
8 Order Specifications for Manuals...................................................................................... 10

1 Safety Instructions and Related Symbols
Load Share Interface Unit LMG-IF 02 1
1Safety Instructions and Related Symbols
This publication offers wherever necessary practical safety instructions to indicate inevitable
residual risks when operating the engine. These residual risks imply dangers to
persons
product and engine
environment.
The symbols used in this publication are in the first place intended to direct your attention to
the safety instructions!
This symbol is to indicate that there may exist dangers to the engine, to the
material and to the environment.
This symbol is to indicate that there may exist dangers to persons. (Danger
to life, personal injury))
This symbol is to indicate that there exist particular danger due to electri-
cal high tension. (Mortal danger).
This symbol does not refer to any safety instructions but offers important notes for
better understanding the functions that are being discussed. They should by all
means be observed and practiced. The respective text is printed in italics.
The primary issue of these safety instructions is to prevent personal injuries!
Whenever some safety instruction is preceded by a warning triangle labeled “Danger” this is
to indicate that it is not possible to definitely exclude the presence of danger to persons, en-
gine, material and/or environment.
If, however, some safety instruction is preceded by the warning triangle labeled “Caution”
this will indicate that danger of life or personal injury is not involved.
The symbols used in the text do not supersede the safety instructions. So please do not
skip the respective texts but read them thoroughly!
Note
Warning
Dan
g
er
Danger!
High
V
olta
g
e

1 Safety Instructions and Related Symbols
2Load Share Interface Unit LMG-IF 02
In this publication the Table of Contents is preceded by diverse instructions that
among other things serve to ensure safety of operation. It is absolutely imperative
that these hints be read and understood before commissioning or servicing the
installation.
1.1 Basic Safety Measures for Normal Operation
•The installation may be operated only by authorized persons who have been duly
trained and who are fully acquainted with the operating instructions so that they are
capable of working in accordance with them.
•Before turning the installation on please verify and make sure that
- only authorized persons are present within the working range of the engine;
- nobody will be in danger of suffering injuries by starting the engine.
•Before starting the engine always check the installation for visible damages and make
sure it is not put into operation unless it is in perfect condition. On detecting any faults
please inform your superior immediately!
•Before starting the engine remove any unnecessary material and/or objects from the
working range of the installation/engine.
•Before starting the engine check and make sure that all safety devices are working
properly!
1.2 Basic Safety Measures for Servicing and Maintenance
•Before performing any maintenance or repair work make sure the working area of the
engine has been closed to unauthorized persons. Put on a sign warning that mainte-
nance or repair work is being done.
•Before performing any maintenance or repair work switch off the master switch of the
power supply and secure it by a padlock! The key must be kept by the person perform-
ing the maintenance and repair works.
•Before performing any maintenance and repair work make sure that all parts of engine
to be touched have cooled down to ambient temperature and are dead!
•Refasten loose connections!
•Replace at once any damaged lines and/or cables!
•Keep the cabinet always closed. Access should be permitted only to authorized per-
sons having a key or tools.

1 Safety Instructions and Related Symbols
Load Share Interface Unit LMG-IF 02 3
•Never use a water hose to clean cabinets or other casings of electric equipment!
1.3 Before Putting an Installation into Service after Maintenance and Repair
Works
•Check on all slackened screw connections to have been tightened again!
•Make sure the control linkage has been reattached and all cables have been recon-
nected.
•Make sure all safety devices of the installation are in perfect order and are working
properly!

2 Application and Mode of Function
4Load Share Interface Unit LMG-IF 02
2Application and Mode of Function
The LMG - IF 02 Load Share Interface Unit is an interface to allow the HEINZMANN
LMG 10 or LMG 2000 Load share unit to connect to the load share lines of an existing sys-
tem coming not from HEINZMANN e.g. Woodward or Barber-Colman.
The unit is powered by 24 V DC and has two isolated ± 12 V DC power supplies. The input
voltage signal from the existing load share lines goes into an amplifier with adjustable gain.
This voltage is then converted to a frequency proportional to the voltage by a voltage to fre-
quency converter. To give isolation between the input and output signals, the frequency signal
is then fed into an opto isolator. The output frequency signal from the opto isolator is then
converted back to a voltage by a frequency to voltage converter and appears as the output via
an amplifier.

3 Block Diagram
Load Share Interface Unit LMG-IF 02 5
3Block Diagram
input
amplifier
gain
adjust
input signal
from existing
load share lines
output signal to HEINZMANN load share lines
power supply
+12 V / -12 V
input filtering
and regulation 12 V DC
24 V DC
output
amplifier
frequency/
voltage
convertor
opto
isolator
voltage/
frequency
convertor
power supply
+12 V / -12 V
12 V DC
common gnd
456
isolation
barrier
LMG - IF 02
input gnd output gnd
1 2 input gnd 3
8 9
output gnd
10
Figure 1: Blockdiagram of LMG – IF

4 Specifications
6Load Share Interface Unit LMG-IF 02
4Specifications
Supply voltage 24 V DC
Maximum voltage 30 V DC
Minimum voltage 18 V DC
Signal input voltage range 0..5 V DC
Signal output voltage range 0..5 V DC
Current consumption approx. 100 mA
Temperature range 0°C up to +70°C
Protection grade IP 00
Weight approx. 0.25 kg

5 Electrical Connection
Load Share Interface Unit LMG-IF 02 7
5Electrical Connection
The load share line between the HEINZMANN units LMG - IF 02 and the LMG 10 must be
closed only, if at least one genset controlled not by HEINZMANN and one genset controlled
by HEINZMANN are running in parallel. This is ensured by the connection of relay RLY 1,
shown in the following figure.
LMG - IF 02
LMG 10
auxillary contacts from
generator breakers of
gensets controlled
by HEINZMANN
auxillary contacts from
generator breakers of
gensets controlled
not by HEINZMANN
RLY1
HEINZMANN
units
Woodward/
Barber Colman
units
signal
1023 4567 8921
0 V
24 V DC
power
supply
+-19
20
21
0 V
signal
24 V DC
+-
signal
1023 4567 8921
0 V
24 V DC
power
supply
+-19
20
21
0 V
signal
24 V DC
+-
Figure 2: Electrical Connection of LMG – IF

6 Adjustments
8Load Share Interface Unit LMG-IF 02
6Adjustments
A gain adjustment is available to set the input to output ratio. It is initially set for 1:1, the out-
put volts follow the input volts. It should be set to give the correct load share balance between
existing units e.g. Woodward or Barber Colman and the additional HEINZMAN LMG’s.
Please refer to the HEINZMANN LMG 10 or LMG 2000 manual for setting up of the load
share units.

7 Ordering Specification
Load Share Interface Unit LMG-IF 02 9
7Ordering Specification
Please order: LMG - IF 02

8 Order Specifications for Manuals
10 Load Share Interface Unit LMG-IF 02
8Order Specifications for Manuals
There is no charge for our technical manuals ordered in reasonable quantities.
Order the necessary manuals on our speed governors from your nearest
HEINZMANN location.
(Please click on “HEINZMANN location” to see the list of our subsidiaries and agents in the
world).
Please include the following information:
• your name,
•the name and address of your company (you can simply include your business card),
•the address where you want the manuals sent (if different from above),
•the number(s) (as on front page bottom right) and title(s) of the desired manual(s),
•or the technical data of your HEINZMANN equipment,
•the quantity you want.
You can directly use the following fax-form for ordering one or several manuals.
Most of the manuals are available as acrobat PDF-files, too. On request they can be send via
e-mail.
We solicit comments about the content and the presentation of our publications. Please, send
your comments to:
HEINZMANN GmbH & Co. KG
Service Department
Am Haselbach 1
D-79677 Schönau
Germany

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