PLC module gets to the heart of energy management.

As part of its strategy to develop the role of programmable logic controllers (PLCs) beyond machine control and automation, Mitsubishi Electric has introduced a series of complementary modules that monitor energy usage.

Energy management is an important issue for both commercial and industrial users, particularly in light of the various energy issues facing the world and monitoring is the first part of controlling its effective use.

Incoming and feeder power monitored

A vital element of these energy-saving efforts is measuring power and presenting it to system where the information is visible and useful in making changes. Power consumption is measured in terms of both incoming power at the distribution panel and at specific points such as feeders and individual devices.

The energy data collected is then used to detect and eliminate waste, and achieve more efficient use of power. Mitsubishi Electric’s MELSEC-Q Series energy measuring module QE81WH enables detailed energy management through performing various energy measurements onsite with the flexibility to suit various production facilities.

Through combining the energy data with production data of a PLC, management based on specific power consumption is also possible. By providing productivity-focused energy management, it creates a platform for full-scale energy-saving measures which can assist in removing inefficiencies in use of power during operations and enhancing productivity

Preventative maintenance

The Q81WH energy measuring modules offer new opportunities in preventive maintenance and quality control. Preventive maintenance, or performing maintenance before a serious problem occurs, is enabled through constantly monitoring current and voltage and using alarms based on upper/lower limit error values to alert personnel to problems. Quality control is achieved through immediate detection of power or voltage-based faults to restrict damage and stop the flow of defective products along the production line.

The range consists of four models dependant on the supply and number of circuits, and they provide a simple method of measuring various energy data. Energy data can be linked with production data to enable management based on specific energy consumption

QE82LG insulation monitoring

In addition, the QE82LG is an insulation monitoring module that supports safety and reduces fire risk of the production site and equipment through monitoring leakage currents and the insulation state of individual devices to assist in preventing faults and production line stoppages.

Open the Mitsubishi Energy module brochure from 999 Automation here