title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Open FrameInstruction Manual2.2 Parallel Operation!Parallel operation is not possible.!Redundancy operation is available by wiring as shown below.PowerSupply+-I1I3Bad exampleGood exampleFig.1.2. Example of measuring output ripple and ripple noise1.8 Isolation!For a receiving inspection, such as Hi-Pot test, gradually increase(decrease) the voltage for the start (shut down). Avoid using Hi-Pot tester with the timer because it may generate voltage a fewtimes higher than the applied voltage, at ON/OFF of a timer.!When you test units for isolation between the input and output, orbetween output and terminal FG, short-circuit between output andremote ON/OFF connector.1.9 Reducing standby power!Burst operation at light loading, the internal switch element is intermittentoperated, and the switching loss is decreased.The specifi cation of the Ripple/Ripple Noise changes by this intermittentoperation. The value of the Ripple / Ripple Noise whenintermittent operates changes in the input voltage and the outputcurrent.!In option -R2, -R5 standby power with remote OFF is lower thanthe one with no load.Please refer to instruction manual 7.1.2 Series Operation andParallel Operation2.1 Series Operation!You can use a power supply in series operation. The output currentin series operation should be lower than the rated current of apower supply with the lowest rated current among power suppliesthat are serially connected. Please make sure that no current exceedingthe rated current fl ows into a power supply.PowerSupply+-I2LoadFig.2.2 Example of redundancy operation!Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2.Please make sure that the value of I3 does not exceed the ratedcurrent of a power supply.I3[theratedcurrentvalueue3 TemperatureMeasurement Point!Installation environmentWhen using it,it is necessary to radiate heat by the heat of the powersupply.Table 3.1 and 3.2 shows the relation between the upper limit temperature(Point 1 and Point 2) and load factors.Please consider the ventilation so that the convection which isenough for the whole power supply is provided.Temperature of Point 1 and Point 2 become lower than upper limittemperature.The life expectancy in the upper bound temperature (Point 1 andPoint 2) is three years or more.Please refer to External View for the position of Point 1 and Point2.Remarks:*Please be careful of electric shock or earth leakage in case oftemperature measurement, because Point 1 and Point 2 islive potential.*Please contact us for details.Power +Supply -Power +Supply -LoadPower +Supply -Power +Supply -LoadLoad(a)(b)Fig.2.1 Examples of connecting in series operationLHP-10