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 TypeTUNS300F, TUNS500F, TUNS700F, TUNS1200FInstruction Manual(2) Constant current adjustment by external voltage!By applying a voltage externally to ITRM, output current for constantcurrent becomes adjustable.When the ITRM terminal voltage is set at less than 2.5 V, the constantcurrent set value can be changed.The voltage betweenOutput current [A] = ITRM and -S[V]×Rated output current [A] ...22.5 [V]!Do not set the external applied voltage of the terminal to -0.3 V orless, and 5.0 V or more.3.12 Power good (PG)?TUNS1200F!By using PG, it is possible to monitor power supply whethernormal operation or abnormal operation. The PG signal is“Low”when the power supply operates correctly. The signal turns to“High”when the power supply stops.!PG circuit is designed as shown in Fig.3.13.Sink current of PG is1mA max.!Circuit of the PG (PG,PGG) is isolated from input, output, FG andvarious function terminals.5V10kΩ0.01μF4.7kΩITRMNotes when you use PG signal are shown below.1 The PG signal is“High”when the output voltage is 20% or lessof the rated output voltage or 60% or less of the output voltagesetting value,2 The PG signal is“Low”when the power supply operates duringconstant current.Fig.3.12 ITRM circuitNote :!If the output voltage becomes less than 5% of the rated voltageduring constant current operation, the output may become unstable.3.11 Inverter operation monitor (IOG)?TUNS300F/500F/700F!By using the inverter operation monitor (IOG), condition of the invertercan be monitored.The following 1 or 2 conditions make the IOG signal turns“H”from“L”within 1 second.1 Malfunction of inverter2 Output voltage is rapidly dropped by adjusting output voltageSpecifi cation of IOG is shown in Table 3.4.Table 3.4 Specifi cation of IOGNo.ItemIOG1FunctionNormal operation "L"Malfunction of inverter "H"2Base pin-S3Level voltage "L"0.5V max at 10mA4Level voltage "H"Open corrector5Maximum sink current10mA max6Maximum applied voltage35V max-STable 3.5 Specifi cation of PGNo.ItemPG1FunctionNormal operation“Low”The power supply stops“High”2Base pinPGG3Level voltage“L”0.5V max at 1mA4Level voltage“H”Open corrector5Maximum sink current1mA max6Maximum applied voltage50V max0.1μF100kΩFig.3.13 Internal circuit of PGPGPGG3.13 Withstanding Voltage/Isolation Voltage!When testing the withstanding voltage, make sure the voltageis increased gradually. When turning off, reduce the voltagegradually by using the dial of the hi-pot tester. Do not use avoltage tester with a timer as it may generate voltage severaltimes as large as the applied voltage.TUNS-28