title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters Bus Converter-Power Module TypeInstruction ManualRemarks:Please note that devices inside the power supply might fail whenvoltage more than rated output voltage is applied to output terminalof the power supply. This could happen when the customertests the overvoltage performance of the unit.3.3 Thermal detection!When the base plate temperature is kept above the Derating, thethermal protection will be activated and shut off the output.Output voltage recovers from protection by shutting down the inputvoltage, and turning on DC input again after the internal powersupply has cooled sufficiently. Alternatively, it can also be resetusing the remote ON/OFF control function.3.4 Remote ON/OFF!The remote ON/OFF function is incorporated in the input circuitand operated with RC and RCG.! When power supply shut off by over voltage protection or thermalprotection, it can be recovered by toggling Remote ON/OFF signal.! Remote ON/OFF circuit (RC, RCG) is on the primary side (inputside), and the RCG is connected to the -VIN terminal inside thepower supply. If it is controlled via an input fi lter or from the secondaryside, insulate it with a photocoupler or similar. (Fig. 3.1(b))! If positive logic control is required, order the power supply with“-R”option.!When remote ON/OFF function is not used, please short betweenRC and RCG.Table 3.1 Remote ON/OFF connectionNo.ItemRC, RCG1Connection methodFig.3.1 (a) (b)2Base pinRCG3Output ON SW SHORT (1.0V max)Standard : Negative4 Output OFF SW OPEN (3.5V min)5Output ON SW OPEN (3.5V min)Optional -R : Positive6 Output OFF SW SHORT (1.0V max)I1RC22kΩ8.2kΩRCG47kΩ(a)12V typCONTROLICI1RC22kΩ8.2kΩRCG47kΩ(b)12V typCONTROLICFig.3.1 Examples of connecting remote ON/OFF circuit!When the DPFseries (Power factor & harmonic corrector module)is used as a front end unit, connect between RC pin and ENA pinon DPF for the start-up time of the DCS1400B control. Pleasecontact us for details.3.5 Remote sensing!Remote sensing is built-in.(1) When the remote sensing function is not in use+VIN-VIN+S -S+VOUT+Co-VOUTLoadCaution: Poor contact.Fig.3.2 Connection when the remote sensing is not in use!When the remote sensing function is not in use, it is necessary toconfirm that pins are shorted between +S & +VOUT and between-S & -VOUT.!Wire between +S & +VOUT and between -S & -VOUT as shortas possible.Loop wiring should be avoided.This power supply might become unstable by the noise comingfrom poor wiring.(2) When the remote sensing function is in useWire as closely as possible(When using electrical wires, it isrecommended to use Twisted-pairor shield wires)+VIN-VIN+S -S+VOUT+Co-VOUTCaution: Poor contact.LoadFig.3.3 Connection when the remote sensing is in use!Twisted-pair wire or shield wire should be used for sensing wire.!Thick wire should be used for wiring between the power supplyand a load.Line drop should be less than 0.5V.Voltage between +VOUT and -VOUT should remain within theoutput voltage adjustment range.!If the sensing patterns are short, heavy-current is drawn and thepattern may be damaged.The pattern disconnection can be prevented by installing the protectionparts as close as a load.3.6 Adjustable voltage range!Output voltage between +VOUT and -VOUT can be adjusted byconnecting external resistors to VTRM or by applied voltage externally.!When the output voltage is adjusted to less than the adjustmentvoltage range, the output ripple voltage might increase.!When the output voltage adjustment is not used, open the VTRMpin.DCS-9