title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters PCB Mount TypeInstruction Manual1 Functions1.1 Input Voltage Range!If output voltage value doesn’t fall within specifi cations, a unit maynot operate in accordance with specifi cations and/or fail.1.2 Overcurrent Protection!Overcurrent OperationAn overcurrent protection circuit is built-in and activated over105% of the rated current or above. It prevents the unit from shortcircuit and overcurrent for less than 20 seconds. The unit automaticallyrecovers when the fault condition is removed.!Current Foldback CharacteristicIf a model that has a current foldback characteristic is connectedto a non-linear load such as lamp or motor, or to a constant currentload, it may not start up. Please see the characteristics below.!Please use a wire as short as possible to connect to the potentiometerand connect it from the pin terminal on the power supplyside. Temperature coefficient deteriorates when some types ofresistors and potentiometers are used. Please use the followingtypes.Resistor .............. Metal Film Type, Temperature Coefficient of±100ppm/C or belowPotentiometer ... Cermet Type, Temperature Coefficient of±300ppm/C or below!If output voltage adjustment is not required, open the pin terminalTRM.!In the case of dual output,±voltages are adjusted simultaneously.+VoutTRM-VoutOutputExternal ResistorR11External VR Load3 2External ResistorR2Fig.1.2 Connecting External DevicesOutput Voltage [V]VA100Load Factor [%]: Load Characteristic of Power Supply: Characteristic of Load (Lamp, Motor or ConstantCurrent Load, etc.)Note : The output may be locked out at Point A when the unit isconnected to a lamp, motor or constant current load.1.3 IsolationFig.1.1 Current Foldback Characteristic!When you run a Hi-Pot test as receiving inspection, gradually increasethe voltage to start. When you shut down, decrease thevoltage gradually by using a dial. Please avoid a Hi-Pot testerwith a timer because, when the timer is turned ON or OFF, it maygenerate a voltage a few times higher than the applied voltage.!In the case of use in locations exposed to constant voltage betweenthe input and the output of the unit is applied, please contactus.1.4 Output Voltage Adjustment Range!The output voltage is adjustable through an external potentiometer.Adjust only within the range of±5% of the rated voltage.!To increase the output voltage, turn the potentiometer clockwiseand connect in such a way that the resistance value between 2and 3 becomes small.To decrease the output voltage, turn the potentiometer counterclockwise.Table 1.1 List of External DevicesConstant of External Device [W]Item #Output Voltage(Adjustable within±5%)VRR1R213.3V1K10010025V1K100270312V5K10K1.2K415V5K10K4705±12V5K18K4706±15V5K18K4701.5 Remote ON/OFF (Excluding 1R5)!You can turn the power supply ON or OFF without turning the inputpower ON or OFF through the pin terminal RC.(1) SU/SUC3/SUT3 and SU/SUC6/SUT6!The output of the power supply turns ON when the pin terminalRC is connected to the pin terminal -Vin. When the voltage of thepin terminal RC is between 2.0 to 9.0V, the output of the powersupply goes OFF.!When the voltage of the pin terminal RC is between 0.3 to 2.0V,the output voltage value may be an uncertain value which is lessthan the rated voltage.!Please see the following diagram for how to use the pin terminalRC.ExternalCircuit+VinRC2.2K47K-VinControlCircuitFig.1.3 Internal Circuits of Remote ON/OFFSU . SUC/SUT-52