Category: DEIF

Introduction

About SGC 120/121

This document presents information necessary for operating DEIF’s SGC 120/121 genset controllers.

SGC 120/121 are modern genset controllers with user friendly HMI and full graphics LCD. 

The controllers come with a highly versatile software. Extensive inputs and outputs support a wide 

variety of industry standard features in diesel/gasoline genset applications.

SGC 121 includes electronic governing for engines with mechanical fuel systems.

With a rotary actuator as add-on for air/fuel charge control, SGC 121 can perform electronic

governing of the engine within ISO 8528 class G3 limits.

The DEIF Smart Connect software offers flexibility to configure each individual input and

output for a specific function or application.

All parameters can also be configured on the genset controller.

LSU-112D features

► Built-in power and frequency transducer

► Constant power or isochronous mode

► LED indication of status

► LED indication for activated control

► 35 mm DIN rail or base mounting

DEIF’s Uni-line Load Sharing Unit, the LSU-112DG,

provides standard load sharing between generators

and interfaces to a governor through an electronic

potentiometer (EPQ96-2 or EPN-110DN).

Suitable for control of diesel and gas generators, for

instance, the LSU-112DG can control the power unit

in stand-alone mode (performing frequency control) or

parallel with other power units (performing frequency

and power control).

The LSU-112DG has built-in power and frequency

transducers that enable connection of external

equipment. Constant power or isochronous mode is also

possible. Speed control is conducted by two relays.

Patent-pending Emulation

A standard in the Automatic Genset Controller, AGC

4. using DEIF’s Emulation Solution, all you need to do

to perform a complete test of your Power Management

Systems is turn on your controller and connect communications.

The Emulations Solution’s focus on exact reproduction

of behaviour improves your planning, commissioning

and training. It is all done in a safe environment without

the costly and excessive need of gensets and switchgear

and without the risk of equipment damage and human

injury. The innovative solution gives you a critical market

advantage and guarantees your customers a cutting

edge, finished result.

Remote communication and control

The AGC-4 supports serial communication protocols

including Modbus (RS-485. USB, and TCP/IP) and

Profibus. This feature allows you to supervise and control

your genset/plant from a remote location and minimise

downtime or take immediate action on genset alarms or warnings.

AGC-4 features

► Multiple operating modes in one software

► Synchronisation of up to 56 breakers in one plant

► Multi-master power management

► Load-dependent start and stop

► Load management

► Emulation for fast training and I/O test

► Hot Standby – change to backup genset controller on the fly

► Close Before Excitation – synchronisation in less than 10 seconds

Remote communication and control

The AGC-4 supports serial communication protocols

including Modbus (RS-485. USB, and TCP/IP) and

Profibus. This feature allows you to supervise and control

your genset/plant from a remote location and minimise

downtime or take immediate action on genset alarms or warnings.

DEIF’s Automatic Genset Controller (AGC-4) is the

most comprehensive and flexible power management

and protection unit on the market today. A further

development of DEIF’s AGC-3. the new generation

controller is fully compatible with its predecessor and has

been designed to allow for easy, intuitive, and smooth

switch-overs for those looking to upgrade.

Suitable for a wide range of applications, the AGC-4’s

standard sequences include back-up power, start/stop,

synchronisation, and load sharing.

The AGC-4 is simple to incorporate into both new and

existing designs, customising the application to fit your

needs, for instance dedicating specific functions or logic

conditions to different inputs and outputs.

Technologically sophisticated, the AGC-4 is also the

world’s most robust power management controller,

successfully tested to maintain reliability and durability

in extreme weather and hazardous conditions. Approvals

include TÜV and UL.

Applications

The DEIF DU-2/MKIII Paralleling and Protection Unit (24VDC) is

suited for a wide range of applications including Power Plants:

Suitable for small to medium power plants where several generators

run in parallel to cater to a changing load demand.

Marine Use: It is used onboard marine vessels for management 

of power generation and to have stable power supplies for integrated onboard systems.

Industrial Plant Use: It is used in factories and manufacturing units

for a continuous supply of power and protection of power-sensitive equipment.

Data Centers: It guarantees power backup works seamlessly at data

centers as that place needs continuous power supply in order to maintain operations.

Telecommunications: It is implemented in telecom facilities so that there

won’t be a break in the power supply towards essential communication equipment.

Benefits from Using the DEIF DU-2/MKIII

Enhanced System Reliability: The DU-2/MKIII ensures better system

reliability resulting from proper load sharing between generators.

This therefore reduces, hence preventing possible cases of outages and failure.

Increased Efficiency: The advanced load management feature for the generators

in the DU-2/MKIII minimizes fuel consumption as well as lowers operational costs.

Safety Assurance: Improved overall protection mechanisms on the DU-2/MKIII

prevent electrical faults from turning into equipment damage or unsafe operating conditions.

Easy integration: The flexible communication capabilities make easy integration

of the DU-2/MKIII into existing systems, allowing for upgrades without major modifications.

Reduced Downtime: The unit’s advanced protection systems allows for early detection of potential

problems,

which can be addressed promptly; thus reducing the chances of spurious and unplanned downtime.

Key Features

One of the benefits of DU-2/MKIII in paralleling control is that it allows several generators

to share load efficiently so that all units will contribute directly to the general power supply without overloading a single generator.

Comprehensive Protection Functions: The protection features have been incorporated into this unit and,

though numerous, include some of them being overcurrent, under voltage, and frequency monitoring among many others.

These safeguards prevent generators from getting damaged and keep the power system intact.

Simple interface: The DU-2/MKIII comes with a simplified format of the display which makes it easier to monitor and set it up.

All alarm signals and commands may be read and set directly on the unit by operators.

Flexible communication protocols: It also supports different forms of communication protocols

so that it will easily work well with other control systems and devices.

Therefore, it makes the DU-2/MKIII flexible according to any form of installation’s specific demands.

Robust Design : It can face the demands of industrial environments due to its robust material not withstanding dust,

moisture and temperature change without failure, so it surely provides reliable performance over the time line.

Programmable Settings : This unit has an option for extensive programmability.

Modifying conditions in protection settings and operation parameters will be allowed

by making modifications based on their particular requirements and operational conditions.

What is the DEIF DU-2/MKIII?

The DEIF DU-2/MKIII is a paralleling and protection unit designed for power generation applications.

Using it, several generators can be run parallel to each other while delivering seamless output.

In this sense, multiple generators form a working coalition to create stable, dependable power.

More than this, the protection aspects of the DU-2/MKIII naturally safeguard not

only the generators but the loads connected to them against electrical faults.

Therefore, it makes the DU-2/MKIII flexible according to any form of installation’s specific demands.

Robust Design : It can face the demands of industrial environments due to its robust material not

withstanding dust,

moisture and temperature change without failure, so it surely provides reliable performance over the time

line.

Programmable Settings : This unit has an option for extensive programmability.

Modifying conditions in protection settings and operation parameters will be allowed

by making modifications based on their particular requirements and operational conditions.

The AGC-4 Mk II supports many popular engine protocols, with more added with each software update.

The controller meets Tier 4 Final/Stage V emissions requirements.

AGC-4 MK II

Supports Global Grid Norms

The controller complies with virtually all grid code regulations used around the world, including (but not limited to) IEEE 1547. VDE 4110/4105. EN50549-1/2 and ENA G99.

Protection and grid support features are included, giving you a “one controller fits all” solution.

Hybrid Applications

The AGC-4 Mk II is plug-and-play with DEIF’s ASC-4 Hybrid Controller, making it easy to integrate diesel genset applications into a wide range of hybrid power units.

The market-leading solution maximizes sustainable power penetration while always ensuring sufficient spinning reserves when photovoltaic (PV) production declines.

Intuitive external touch screen

You can choose from a number of different display and control options for the AGC-4 Mk II, ranging from an LCD display and buttons to a range of touchscreens, providing you with greatly improved overview and control options.