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Frequency-to-current converter

08 October 2013

To provide accurate control of, for example, a conveyor motor speed, a feedback of the actual speed of the adjacent machine is usually required. If this is only available as a pulse sequence the new DW2503 from ifm electronic can offer a solution.

The new upgraded digital frequency to current converter can accept high-frequency incoming pulses up to a maximum 10 kHz, from as low as 1 pulse per minute. The user can scale the conversion of these pulses into the desired 0/4 to 20 mA or 0 to 10V signal. If needed, the DW will also invert the signal.

The converter also features a switched output, in the form of a relay and a solid-state transistor, which allows users to set an alarm signal. The output can be set to stay on for a chosen time.

The original DW frequency converter has been ungraded to cover an extended operating temperature range down to –40°C and the newly developed luminous OLED display is only clearer and also brighter, with a menu-guided parameter setting designed for maximum user-friendliness.

The DW2503 will operate on a wide range of voltages, AC or DC, and provides DC supply to input sensors.


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