title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DIN Rail typeInstruction Manual1 Functions1.1 Input Voltage Range!Input voltage range of the module is from DC10V to DC60V(KRE-20A), DC10V to 30V(KRE-40A).To comply with safety standards, input voltage range isKRE-20A: [DC10V to DC60V]KRE-40A: [DC10V to DC30V]!If input value doesn’t fall within above range, a unit may not operatein accordance with specifi cations or fail.1.2 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.!When you test a unit for isolation between the input-output andthe DC_OK, or between the DC_OK and the chassis, short all terminalsof DC_OK.1.3 Signal Output!LED indicators and signal output in the form of relay contact aresignals to check the presence/absence of voltage at the input terminalof a unit.The timing of signals might be vary depending on input and loadconditions. Please make sure enough evaluation.Table 1.1 Description of the signal outputSignal OutputMore than10V※1DC_OK1 (LED: Green)ONOFFDC_OK2 (LED: Green)ONOFFDC_OK1 (Relay Output)※2ShortOpenDC_OK2 (Relay Output)※2ShortOpenThe timing of LED indicator might be vary depending on input andload conditions. Please make sure enough evaluation.※Same input cables (length and diameter) from the two power suppliesare recommended in order to make a better balance.2 Peak Current!The units can generate the peak current under the following conditions.-t1[5sec-Duty[=35%-Ip[Rated peak current-t1 Duty= X100 [%]-Iave[Rated currentt1+t2[A]Output currentt1t2Fig.2.1 Peak currentIp : Peak currentIave : Average currentI : Load current3 TemperatureMeasurement Point!Ambient temperature indicates the temperature of the inlet of theair.Caution on signal outputs :!The timing of signals might be very depending on models, inputand load conditions.※1 In case of that the input terminal voltage is less than 8V or lessthan approximately 50% of another the input terminal voltage,LED turns off and DC_OK relay opens.※2 This circuit is insulated from other circuits (input and output).AirflowAmbient temperaturemeasurement pointFig.3.1 Ambient temperature measurement point!It is possible to check the input voltage difference by using Balance_OKLED indicator in order to make a voltage balance ofconnected two power supplies.In case that the input voltage difference is small, LED lights up andthe output current of the connected two power supplies tends to bebalanced. It expects longer life time than unbalanced condition.In case that the input voltage difference is not small enough, LEDis turned off.KR-7