July 9, 2018
The innovative Emparro67 Hybrid power supply is an all-rounder with many powerful features: it not only relocates power supply from the control cabinet to the industrial field, but it also monitors currents using two integrated channels for 24 VDC load circuit monitoring, to ensure high operational reliability. An IO-Link interface permits extensive and transparent communication.
IP67 power supply units of the Emparro line are designed for applications outside the control cabinet. All components are protected from mechanical stress. The compact and robust metal housing is fully potted and protected from dirt, humidity and cooling lubricants in the rough industrial field. Their high energy efficiency – up to 93.8 percent of the energy applied is used – allows the units to be touched, even when under full load owing to their low surface temperature. This makes the power supply units a real all-rounder for many different applications.
The great advantage of this decentralized solution: The voltage conversion from 230 VAC to 24 VDC no longer takes place in the cabinet, but directly in the field and thus right at the load. Power loss is kept to a minimum and energy costs are reduced. Smaller cabinets can be used, and in some applications it may even be possible to completely get rid of them.
Electronic current monitoring for high operational reliability
The new Emparro67 Hybrid power supply has two integrated MICO channels for electronic current monitoring of, for example, separate system components, sensors, actuators, or in particular of fieldbus modules. In this way, both sensor and module voltage and actuator voltage of the connected fieldbus systems can be monitored separately. This guarantees the desired selectivity, which would not be possible with common monitoring of both input voltages, and provides maximum operational reliability. If the actuator supply is interrupted, for example due to short-circuit, overload or cable break, the fieldbus continues to be supplied via the sensor and module voltage. This means that error messages and diagnostic information can still be sent to the PLC.
The Mico channels for monitoring the two 24 VDC load circuits can be adjusted to different current values, either by pressing a button directly on the device or via a communication interface. The tripping process of the Mico channels has been patented and applies the principle of “as late as possible, as early as necessary.” Once a share of 90 percent of the adjusted current value has been reached, an early warning will be triggered that enables steps to be taken before an error occurs. Disconnected channels can be activated at the press of a button or via a signal. If, for reasons of maintenance, a service person disconnects a channel by pressing a button on the device, it can only be reactivated manually by the service person. In this case, the remote switch-on option is deactivated during this process.
The Emparro67 Hybrid is equipped with an IO-Link interface (M12 connection) and is able to communicate as a device with a superior IO-Link master. It is thus possible to use the Emparro67 Hybrid in fully-networked intelligent applications transporting comprehensive diagnostic data and operating characteristics. A concrete application is the monitoring of the device's life span: the Emparro67 Hybrid provides precise information on the status of the device. If a status defined by the operator is reached, an order can be initiated directly and the device can be replaced during the next maintenance period without considerable additional efforts or downtimes. Companies in the plant construction and mechanical engineering sector can use such predictive maintenance functions for the development of new business models.
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