PLC Power Supplies

A programmable logic controller (PLC) is a specialised computer which has been adapted for the control of industrial processes such as robotic devices and assembly lines. PLC power supplies are components of PLCs that convert relatively high input source power into lower regulated voltages required for the internal circuitry in PLCs. 


How do PLC power supplies work?


The PLC power supply gets input power from an external line voltage, which is usually fed through a control relay and filter external to the PLC. The line voltage is stepped-down, filtered, rectified, regulated, status-monitored and voltage and current protected. Some PLC power supplies are embedded with switches for selecting a particular programming mode or protecting the memory.


The resulting low DC voltage output powers the PLC’s various modules as well as the PLC's integral battery (which is used for memory back up). Should the input line voltage drop or the PLC power supply fail, the memory contents will not change thanks to the memory backup.


What are PLC power supplies used for?


PLC power supplies are essential components required to run a PLC.


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Beskrivning Pris Manufacturer Series For Use With Line Voltage User Power Output Voltage Output Current Output Power Length Width Depth Minimum Operating Temperature Maximum Operating Temperature Dimensions
RS-artikelnummer 624-1825
Tillv. art.nrF2-40BL
VarumärkeMitsubishi
698,98 kr
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F2-40BL FX2N Series - - - - - - - - - -
RS-artikelnummer 624-1831
Tillv. art.nrQ6-BAT
VarumärkeMitsubishi
369,66 kr
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Q6-BAT Q Series - - - - - - - - - -
RS-artikelnummer 539-0910
Tillv. art.nrFX3U-32BL
VarumärkeMitsubishi
672,10 kr
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FX3U MELSEC Series - - - - - - - - - -
RS-artikelnummer 875-5742
Tillv. art.nrFX5-1PSU-5V
VarumärkeMitsubishi
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FX5 FX5U CPU Module, FX5UC CPU Module 100 → 240 V ac 24 V dc, 5 V dc 1.2 A @ 5 V dc, 300 mA @ 24 V dc 20W 50mm 90mm 83mm - - 50 x 90 x 83 mm
RS-artikelnummer 455-6664
Tillv. art.nr136371
VarumärkeMitsubishi
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Q63 MELSEC Q Series 24 V dc 5V dc 6 A - 55.2mm 98mm 90mm - - 55.2 x 98 x 90 mm