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12/04/2010
Union Engineering voted "Best credit score" again
Union Engineering has for the third time been voted ”Best credit score” with 4½ out of 5 stars, meaning that Union Engineering is in the top 10% as regards creditworthiness.

06/04/2010
Capidea acquires Union Engineering a/s
“With the new ownership structure we are well prepared to implement our growth strategy” said CEO Peter Kriklywi

23/12/2009
Read the article about Unions project for Coca-Cola, Puerto Rico
Focus on innovative CO2 solutions

14/12/2009
Union signs new contract with RMI
RMI and Union Engineering signed an agreement in Copenhagen to develop the application of CO2 technology in Indonesia.

 
Control Systems


Control Systems

When buying a Union Engineering CO2 plant, we can supply different kinds of control solutions and installations, depending on the plant type.

CO2 plants <1000 kg/h

In order to achieve the most reliable control solutions in CO2 plants less than 1000 kg/h, the installations are to a great extent based on standardisation. Electrical process controls supplied by Union Engineering are thoroughly tested, minimising on-site test and commissioning time.

CO2 plants >1000 kg/h

CO2 plants with a capacity of larger than 1000 kg/h are often built according to pre-defined operating conditions and customer requirements. In this case Union Engineering can offer great experience in designing the control philosophy according to the desired specifications.

These CO2 plants are always divided into several skids and the installation for instruments can be made in different ways depending on the plant design. The instrumentation can be pre-wired to junction boxes or to remote I/O panels. A combination of the two is also used.

Another option is to use Profibus or Fieldbus instrumentation for analogue instrumentation.

Hardware configurations

All Union Engineering plants are PLC controlled via an operator interface system.

PLC hardware

In general all plants supplied by Union Engineering are PLC controlled. This gives easy access to change operational parameters if required.

Union Engineering supplies Allen Bradley and Siemens PLC’s as standard, ensuring reliable control solutions. Other manufactures can be supplied upon request.

Our standard PLC's are:

  • Siemens type S 7/300
  • Siemens type S 7/400

The above mentioned PLC's can be combined with hardware for remote I/O, Profibus or Fieldbus systems.

Operator interfaces

To make operation of the plants easy and logical, all plant control is done from an operator interface system.


The normal functions such as start and stop push buttons as well as running and fault lamps are replaced by symbols on the screen. In addition it is possible to see in clear text if an alarm or trip is activated. Actual temperatures, pressures, flows etc. can be shown if the plant is equipped with transmitters. Alarm logging and password protection is possible.

Our standard operator panels are:

  • Allen Bradley type: Panelview plus 1000 Color (key pad)
  • Siemens type: MP370 12" (key pad)

Scada systems

If a more advanced operator interface system is required, a PC based system, Fix DMAC, is an option. Using a PC based operator interface system opens up a lot of possibilities such as graphic plant lay-out in colour with mouse operated functions, trend curves for pre-chosen parameters, change of alarm, trip set points, operation set points, timers, PID regulators etc. directly from the plant screen by activating icons on the screen.

LCD screen delivered from Union Engineering
PC based operator interface system
Contact regarding this product

Ms. Larissa Brandt
Sales Engineer - Units
Units & After Sales
Engineer
Phone: +45 76 20 77 00
Direct phone: +45 76 20 78 86
Fax:+45 76 20 78 00
E-mail: