title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies DIN Rail TypeInstruction Manual1 Functions1.1 Input Voltage Range!Input voltage range of the power supplies is from AC85V toAC264V.!To comply with safety standards, input voltage range is AC100-AC240V (50/60Hz).!If input value doesn’t fall within above range, a unit may not operatein accordance with specifi cations and/or start output voltagehunting or operate protection circuit or fail.If you need to apply a square waveform input voltage, which iscommonly used in UPS and inverters, please contact us.!When the input voltage changes suddenly, the output voltageaccuracy might exceed the specifi cation. Please contact us.!When the power supply is used with DC voltage input, an externalDC fuse is required for protection. Consult us for more details.!If the input voltage is more than AC250V, power factor correctiondoes not work and the power factor deteriorates. Consult us formore details. (except KLEA240F, KLNA240F)!Operation stop voltage is set at a lower value than of a standardversion (derating is needed).-Use ConditionsOutputKLEA120F,KLNA120F 70WKLEA240F,KLNA240F 100WInput AC50V or DC70VDuty 1s/30s* Please avoid using continuously for more than 1 second underabove conditions. Doing so may cause a failure.1.2 Inrush Current Limiting!An inrush current limiting circuit is built-in.!If you need to use a switch on the input side, please select onethat can withstand an input inrush current.!Thermistor is used in the inrush current limiting circuit. When youturn the power ON/OFF repeatedly within a short period of time,please have enough intervals so that a power supply cools downbefore being turned on.1.3 Overcurrent Protection!A overcurrent protection circuit is built-in and activated over 105%of the rated current. A unit automatically recovers when a faultcondition is removed. Please do not use a unit in short circuit and/or under an overcurrent condition.!Hiccup Operation Mode (except KLEA240F, KLNA240F)When the overcurrent protection circuit is activated and the outputvoltage drops to a certain extent, the output becomes hiccup sothat the average current will also decrease.1.4 Overvoltage Protection!An overvoltage protection circuit is built-in. If the overvoltage protectioncircuit is activated, shut down the input voltage, wait morethan 3 minutes and turn on the AC input again to recover the outputvoltage. Recovery time varies depending on such factors asinput voltage value at the time of the operation.Note :Please avoid applying a voltage exceeding the rated voltage to anoutput terminal. Doing so may cause a power supply to malfunctionor fail. If you cannot avoid doing so, for example, if you needto operate a motor, etc., please install an external diode on theoutput terminal to protect the unit.1.5 Output ripple and ripple noise!Output ripple noise may be infl uenced by measurement environment,measuring method fi g 1.1 is recommended.+Vout-VoutOsiloscope/Ripple noise meterBw:20MHzC1 C2 +150mmLoadDifferential probeC1:Film capacitor 0.1mFC2:Aluminum electrolytic capacitor 22 mFFig.1.1 Measuring method of Ripple and Ripple Noise1.6 Output Voltage Adjustment Range!To increase an output voltage, turn a built-in potentiometer clockwise.To decrease the output voltage, turn it counterclockwise.1.7 Isolation!When you run a Hi-Pot test as receiving inspection, graduallyincrease the voltage to start. When you shut down, decrease thevoltage gradually by using a dial. Please avoid a Hi-Pot tester witha timer because, when the timer is turned ON or OFF, it may generatea voltage a few times higher than the applied voltage.1.8 Signal OutputFunctions of LED indicators.!Functions of LED indicators and signal output in the form of areshown below. Checking the presence/absence of voltage at theoutput terminal of a power supply is possible.Table 1.1 Description of the signal outputSignal OutputNormalOutput is decreasingDC_OK (LED: Green)ONOFFKL-10