title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Enclosed TypeInstruction Manual1.3 Overcurrent Protection!An overcurrent protection circuit is built-in and activated over105% of the rated current or 101% of the peak current. A unit automaticallyrecovers when a fault condition is removed.Please do not use a unit in short circuit and/or under an overcurrentcondition.!Hiccup Operation ModeWhen 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.? PBA1000F, PBA1500F and PBA1500T!Output Voltage ShutdownIf the overcurrent protection circuit operates continuously for 5seconds, the output voltage will shut down. To recover the outputvoltage, remove a condition that is causing an overcurrent, shutdown the input voltage, wait more than 3 minutes and turn on theAC input again.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.? PBA600F, PBA1000F, PBA1500F andPBA1500T!In addition to a standard overvoltage protection circuit, an overvoltageprotection circuit to follow to output voltage is built-in. If anoutput voltage exceeds a pre-set value, the overvoltage protectioncircuit to follow to output voltage is activated and shut down theoutput voltage.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.!In PBA600F, 1000F, PBA1500F and PBA1500T series, the overvoltageprotection circuit is a tracking method in which the detectionpoint is set depending on output voltage setting. However,even if a sensing line makes open or external voltage is appliedto output terminal in order to activate the function at receivinginspection, the tracking function does not work, so the function isactivated with higher value in a catalog.Therefore, do not perform the function test to avoid the any trouble.!The follow type overvoltage circuit doesn’t operate when theremote sensing comes off. In this case, a standard overvoltageprotection circuit operates. When the overvoltage protection circuitoperates due to the breakdown of the power supply, it is similar.Standard overvoltage protection circuit is please contact us for details.1.5 Thermal Protection? PBA300F, PBA600F, PBA1000F, PBA1500Fand PBA1500T!A thermal protection circuit is built-in.The thermal protection circuit may be activated under followingconditions and shut down the output.1 When a current and a temperature continue to exceed the valuesdetermined by the derating curve.2 When a fan stops or air fl ow is blocked from the fan and weakens.If the thermal protection circuit is activated, shut off the input voltageand eliminate all the overheating conditions. To recover theoutput voltage, have enough time to cool down the unit beforeturning on the input voltage again.1.6 Output Voltage Adjustment!To increase an output voltage, turn a built-in potentiometer clockwise.To decrease the output voltage, turn it counterclockwise.? PBA10F, PBA15F, PBW15F, PBA30F,PBW30F, PBA50F, PBW50F, PBA75F,PBA100F and PBA150F!We are offering an Option -V, which doesn’t have a built-in potentiometerbut instead enables you to adjust the output voltage byusing an external potentiometer (please see 7 Options).? PBA300F, PBA600F, PBA1000F, PBA1500Fand PBA1500T!The power supplies have an external output voltage control function.The output voltage can be adjusted within a 110% rangefrom almost 0V by changing the voltage between the terminalTRM and the terminal -S on CN1. You can decrease the voltageby drawing a current from the TRM terminal.You can calculate the output voltage in this case from formula 1below.Please note that the formula 1 gives you only an estimate.Please contact us if you need accurate numbers.Output voltage =The voltage betweenTRM and -S2.5 [V]Xrated output voltage--- 1Please do not apply an external voltage of -0.7V or less or 3.0Vor more.There is more than one method to adjust the output voltage, includingthe methods to use external resistors and external powersupplies. Since each method has different characteristic, pleasecontact us for details.PBA/PBW-38