Increased energy prices: How to reduce your costs

Tips on how to save electricity and money with KEB Automation – Part 1

The costs for electricity, gas and heating oil have risen drastically worldwide and place a considerable burden on plant and machine operators. More than ever, the question arises of how electricity can be saved without major restrictions in daily operation. KEB Automation provides various solutions and products that can help. In doing so, you reduce costs and protect the climate. 

 

Power supply and regeneration with the COMBIVERT R6

Quite often energy is burnt up in braking resistors. This increases the risk of fire and wastes precious energy. Yet cyclically occurring processes in particular have a high potential of regenerative energy that can be used easily and efficiently. Where masses are decelerated, supply and regeneration can be considered. With the COMBIVERT R6 regenerative units KEB offers the possibility to return the regenerative energy of the drive controllers into the supply network. The R6 is designed for the supply and energy regeneration of individual or several drive controllers. There are possible applications in intralogistics as well as in woodworking, textile machines or in process technology. The energy saved is demonstrated by the KEB application engineers on the basis of a dimensioning.

Powerbox Eco – energy-saving braking

Electromagnetic holding brakes are energised and thus open most of the time during operation. Only in emergency situations they are switched off. In applications where the brake is energised for a long time, it heats up considerably – and requires a corresponding amount of energy. This is where the control module for brakes, the Powerbox Eco from KEB, comes in: It reduces the nominal voltage required to release the brake to a sufficient holding voltage. This can lower the energy requirement and reduce heat generation by up to 94 percent. For driverless transport systems, for example, the Powerbox Eco ensures a longer range thanks to the energy savings. And medical technology also benefits from the lower heat generation of the brakes in patient couches. Find out more in our webseminar.

 

Servo pumps and drive controllers – an efficient pairing

The use of KEB frequency inverters ensures energy savings in numerous applications. This is also the case in combination with servo pumps, which can vary the speed of hydraulic pumps in combination with drive controllers and compact DL4 motors. In this way, oil quantities and pressure can be optimally adjusted to the requirements of the machine. Hydraulic pumps that use oil as fluid are often operated via asynchronous electric motors with a fixed speed on the mains. In this case, proportional valves regulate the oil quantity and oil pressure. The problem is that a high proportion of energy is introduced into the system as heat. Based on this, the COMBIVERT F6 Drive Controller offers with its function for the (multi-)servo pump control function, the great advantage of being able to noticeably reduce the energy requirement by optimally adjusting the oil quantity and oil pressure. And the cycle time of injection moulding machines, for example, is also reduced. You want to learn more? Request our free web seminar.

 

Bistable clutches: Up to 99 percent less consumption

KEB offers bistable clutches for various applications, which have the feature of maintaining the switching state (open or closed) – without any further energy supply. The energy-optimised switching takes place via a short current pulse, which is used exclusively to change the switching state. Depending on the duty cycle, energy savings of up to 99 percent are achieved compared to conventional clutches. In door flap systems or air-conditioning compressors, among others, bistable clutches provide a considerable increase in energy efficiency. Due to the low energy consumption, KEB bistable clutches are ideal for battery operation. 

 

We will show you more useful tips with which you can noticeably reduce your electricity costs soon in Part 2. 


Author: Tim Schöllmann