Drive Intelligence for servo pumps
Engineering360 News Desk | August 24, 2020Baumüller has introduced an intelligent and energy-efficient drive system for applications such as presses and injection mold machines. With the new V2+ software package, the drive and automation specialist now offers more intelligent functions for process monitoring and optimization.
The servo pump solution reduces the energy requirements of machines and systems, enabling relatively short cycle times with very low noise development and a high level of process precision. The combination of hydraulic power transmission together with the electric servo drive technology offer many advantages, including the ability to adjust the servo drive for optimal overall system effectiveness and energy efficiency as compared to
Source: Baumüllera purely hydraulic solution.
The new controller-integrated servo pump software package includes a feature for speed monitoring and slip speed compensation, which enables monitoring of the leakage characteristic of the system. The speed is automatically readjusted as needed so that the machine continues running in the optimal range. If leakage increases as the pump ages and a measurement value outside the tolerance is detected, the system returns an error message. The operator is thus informed automatically, enabling a pump change at the right time, which prevents downtimes and improves process quality.
Pressure sensor monitoring is another new feature that ensures process quality and prevents downtime. As pressure sensors age, they become less accurate, so the sensor values are first optimized and then a sensor change will be indicated as inaccuracy increases. These systems also have a tendency toward zero drift, and can indicate that there is pressure in the system when this is not the case.
Pulsating alternating pressures arising in the system can cause damage to the pump. In this case, the converter would receive the incorrect information that pressure still needs to be reduced and would rotate the motor in the wrong direction. With the pressure sensor monitoring software feature, such a false response is avoided, thus preventing equipment damage.