Accurate control of the speed of a conveyor motor often requires feedback on the speed of the adjacent machine. If this is only available as a pulse sequence, the DW2503 digital converter from ifm electronic offers a solution. The upgraded DW2503 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 10 V signal. If needed, the DW will invert the signal. As a bonus the DW also features a switched output in the form of a relay and a solid-state transistor, allowing the user to set an alarm signal. The output can be set to stay on for a chosen time.
ifm electronic has upgraded the original DW frequency converter to cover an extended operating temperature range down to 40°C below zero. The newly developed luminous OLED display is not only clearer but also brighter, and the menu-guided parameter setting is designed for maximum user friendliness. The DW2503 can operate at a wide range of voltages, AC or DC, and provide DC supply to input sensors.
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