title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Enclosed TypeInstruction ManualTable 2.1 IEC60601-1-2 Maximum output load factorVoltage Dipduration[ms]PCA300FPCA600FPCA1000FPCA1500F100VAC→0VAC2070%70%60%55%100VAC→40VAC10060%60%60%50%100VAC→70VAC500100%100%100%100%240VAC→0VAC2080%80%80%75%240VAC→96VAC100100%100%100%100%240VAC→168VAC500100%100%100%100%Table 2.2 SEMI F47-0706 Maximum output load factorVoltage Dipduration[ms]PCA300FPCA600FPCA1000FPCA1500F100VAC→50VAC20080%70%70%70%100VAC→70VAC500100%100%100%100%100VAC→80VAC1000100%100%100%100%200VAC→100VAC200100%100%100%100%200VAC→140VAC500100%100%100%100%200VAC→160VAC1000100%100%100%100%2.2 Inrush Current Limiting!An inrush current limiting circuit is built-in.!If you need to use a switch on the input side, please select onethat can withstand an input inrush current.!Relay technique is used in the inrush current limiting circuit. Whenyou turn the power ON/OFF repeatedly within a short period oftime, please have enough intervals so that the inrush current limitingcircuit becomes operative.!When the switch of the input is turned on, the primary inrush currentand secondary inrush current will be generated because therelay technique is used for the inrush current limiting circuit.2.3 Overcurrent Protection!An overcurrent protection circuit is built-in and activated over105% of the rated current. A unit automatically recovers when afault condition is removed.Please do not use a unit in short circuit and/or under an overcurrentcondition.!Hiccup Operation ModeHiccup operation for overcurrent protection is included in a part ofseries. When the overcurrent protection circuit is activated and theoutput voltage drops to a certain extent, the output becomes hiccupso that the average current will also decrease.2.4 Overvoltage Protection!An overvoltage protection circuit is built in. When overvoltageprotection operates, release it by shutting down input and re-inputafter 10 seconds or setting the voltage of RC2 terminal to logic toturn off output.Note :!Please avoid applying a voltage exceeding the rated voltage to anoutput terminal. Doing so may cause power supply to malfunctionor fail. If this is unavoidable, for example, if you need to operate amotor, etc., please install an external diode on the output terminalto protect the unit.2.5 Thermal Protection!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 weakens by intake port or exhaustport is blocked.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 or setting the voltage of RC2terminal to logic to turn off output.2.6 External output voltage adjustment!To increase an output voltage, turn a built-in potentiometer clockwise.To decrease the output voltage, turn it counterclockwise.!When the VTRM_EN and COM terminals on CN3 are shorted andthe power supply starts up, the VTRM will be enabled. The outputvoltage can be adjustable by external voltage applied betweenVTRM and COM on CN1 or CN2. In this case, the output voltagewill be based on the calculation 1. However, even if 3.0V or moreis applied, the output voltage cannot be changed 120% or more.Do not set the external applied voltage of the terminal to -0.3V orless, and 5.0V or more.In order to make it variable, it is necessary to apply voltage fromthe outside.The voltage betweenVTRM and COM [V]Output voltage [V] = XRated output voltage [V]--- 12.5 [V]!When the VTRM is enabled, the potentiometer for the output voltageadjustment will be disabled.!Switch the VTRM terminal, it is necessary to turn on the poweragain.!When using the external voltage control function, when the VTRMterminal becomes open, the output voltage drops to around 0V.!When the output voltage is adjusted to less than the adjustmentvoltage range, the output ripple voltage might increase.10kΩVTRM0.01μF 4.7kΩCOMFig. 2.1 VTRM circuit!When the output voltage is adjusted to less than approximately5% of the rated voltage, the output might be unstable or stop.Please contact us for more details.PCA-23