title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Enclosed TypeInstruction Manual(2) Turn ON/OFF by AC InputEventsAC INPUTRCOutput VoltageAUXWRNPGONOFF0V0VNGOKNGOKACInput400ms typ100ms max200ms max10-150msACLoss10ms-10s8ms max1.1s max※At rated load2s min1ms min2.1s min：IndetermunateFig.1.7 Sequence time chart by AC Input2 Series/Parallel Operation2.1 Series Operation!It is possible to connect multiple output voltages in series in orderto obtain higher output voltage.!The maximum combined output voltage of series operation is400V.Notes :1 Please note that the maximum current available to the load isequal to the current of the lowest rated supply in the string.2 In case of malfunction (Failure or protection circuit activation),please stop the operation and replace the failed power supply.PowerPower++SupplySupply-Load-LoadPower +Power +LoadSupply-Supply -（a）（b）Fig.2.1 Examples of connecting in series operation2.2 Parallel Operation/Master-slave Operation!Units can be used in parallel operation by connecting them asshown in Fig.2.2.Please parallelly connect CB,VTRM and COM of each unit in paralleloperation.Power SupplyPower SupplyPower Supply+VVTRMCBCOM-V+VVTRMCBCOM-V+VVTRMCBCOM-VFig.2.2 Example of parallel connectionLoad!Differences in the output current values among the power suppliesin parallel connection are 10% at most. Please make sure that thesum of the output current does not exceed obtained value fromthe following equation.(Output current in parallel operation)= (Rated current per unit) X (Number of units) X0.9!When the number of units in parallel operation increases, the inputcurrent also increases. Please design input circuitry (includingcircuit pattern, wiring and current capacity for equipment) carefully.!Connect the output wiring of each power supply as close to theoutput terminal as possible in parallel operation. Also, make surethat the wiring impedance of the connected point from each powersupply become even. Otherwise, the output current balance circuitmay become inoperative.!The maximum number of units in parallel operation are 10 or less.!The output voltage in parallel operation can be adjusted by thepotentiometer of just one power supply. (Master-slave operation)To do so, select one power supply as the master unit and turn thepotentiometers of the other (slave) power supplies clockwise untilhear the sound or short SLV_EN and SGND.Once you have done this, the output voltage can be adjusted bythe potentiometer of the master unit.!Parallel connection to other products is not available.*Notes for parallel operation1Specifi cation value of ripple and ripple noise is tripled.2Load regulation is 3% of the rated output voltage.2.3 N+1 Parallel Redundancy Operation!N+1 parallel redundancy operation is available for improved systemreliability.!If you add one extra power supply in parallel operation, even ifone of the power supplies in your system fails, the remaining nonfailed power supplies continue to sustain the system. If one of thepower supplies stops operating, the output voltage may changeabout 5%.!Please shut off the input voltage when you replace a failed powersupply.!Hot-swap or Hot-plug is not available.!2 or more power supplies failures may cause the output voltage todecrease and the system to shut down. Immediate replacement isHCA-11