title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Bus Converter . Power Module Type TUNS300F, TUNS500F, TUNS700F, TUNS1200F Instruction Manual3.4 Overvoltage protection!Overvoltage protection circuit is built-in. If the overvoltage protectioncircuit is activated, shut down the input voltage, wait a certaintime and turn on the AC input again to recover the output voltage.The recovery time is 3 minutes or more for TUNS300F/500F/700F,and 10 seconds or more for TUNS1200F. However, it varies dependingon such factors as input voltage value at the time of theoperation.Remarks:Please note that devices inside the power supply might fail whenvoltage of more than rated output voltage is applied to output terminalof the power supply. This could happen when the customertests the overvoltage performance of the unit.3.5 Thermal protection!When it exceeds the Derating, the thermal protection will be activatedand simultaneously shut down the output.When the thermal protection is activated, shut off the input voltageand eliminate all the overheating conditions. To recover the outputvoltage, keep enough time to cool down the power supply beforeturning on the input voltage again.3.6 Remote ON/OFF?TUNS300F/500F/700F!Remote ON/OFF is not built-in.?TUNS1200F!Remote ON/OFF is built-in!Remote ON/OFF is possible by applying a voltage between RC1and RC2 pin.!When power supply shut off by over voltage protection or thermalprotection, it can be recovered by toggling Remote ON/OFFsignal.!Remote ON/OFF circuit (RC1, RC2) is isolated from input, output,FG, AUX and various function terminals.!Sink current of RC1 must be kept up to 12mA.!If positive logic control is required, order the power supply with“-R3”option.Table 3.1 Remote ON/OFF connectionNo.ITEMRC1, RC21Connection methodFig.3.1 (a)Fig.3.1 (b)Fig.3.1 (c)2IsolationINPUT - RCINPUT - RCOUTPUT - RCINPUT - RC3Base pin-SRC2-S, RC24SW OPEN SW SHORTOutput ONStandard(0.1mA max) (0.5V max)5: NegativeSW SHORT SW OPENOutput OFF(2mA min) (0.1mA max)6SW SHORT SW OPENOutput ONOptional -R3(2mA min) (0.1mA max)7: PositiveSW OPEN SW SHORTOutput OFF(0.1mA max) (0.5V max)TUNS-25(a)12Vtyp1.1kΩ150ΩAUXRC1RC2OFF-SPOWERON(b)12Vtyp1.1kΩ150ΩAUXRC1RrcV1RC2POWEROFF ON-S(c)12Vtyp1.1kΩ150ΩFig.3.1 Examples of connecting remote ON/OFF circuit?-R1, -R3 (TUNS300F/500F/700F)AUXPOWERRC1 ON OFFRC2!Remote ON/OFF is possible by applying a voltage between RC1and RC2 pin. External DC power source is necessary to operateremote control.External current limiting resistor Rrc is necessary.!When power supply shut off by over voltage protection oroverheating protection, it can be recovered by toggling RemoteON/OFF signal.Table .3.2 Remote ON/OFF connection specifi cationNo.ITEMRC1, RC21Optional-R1-R32ON/OFF LogicNegativePositive3FunctionOutput is ON in“L”Output is ON in“H”4Base pinRC2RC25Output ON6Output OFF!Sink current of RC1 must be kept up to 12mA.VrcOUTSIDE OF TUNSRrcSWRC1RC2INSIDE OF TUNS15012mA maxVfN1.0VFig .3.2 RC Connection Example*Please be careful not to connect RC1 and RC2 opposite.It may cause a failure of power supply.!Remote ON/OFF circuit (RC1, RC2) is isolated from the input andoutput and FG.?-R2 (TUNS300F/500F/700F)!”-R2”can reduce standby power than“-R1”.!The usage is same as option“-R1”.Please refer to option“-R1”■Standby power0.5Wtyp (AC100V), 1.2Wtyp (AC200V)3.7 AUX for Remote ON/OFF circuit?TUNS1200F!The AUX can be used as the power source for Remote ON/OFFcircuit.-S