title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Enclosed TypeInstruction Manual1.6 Output voltage adjustment! To increase an output voltage, turn a built-in potentiometer clockwise.To decrease the output voltage, turn it counterclockwise.? PDA300F,PDA600F! The power supplies have an external output voltage control function.The output voltage can be adjusted from almost 0V.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 -0V or less or 3.0V ormore.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.1.7 Output ripple and ripple noise!Output ripple noise may be infl uenced by measurement environment,measuring method fi g.1.3 is recommended.Osilloscope/Ripple noise meterBw:20MHz+Vout-VoutC1150mmC1 : Aluminum electrolytic capacitor 22μF+LoadDifferential probeFig.1.3 Measuring method of Ripple and Ripple NoiseRemarks :When GND cable of probe with fl ux of magnetic force from powersupply are crossing, ripple and ripple noise might not measurecorrectly.Please note the measuring environment.! If the terminal TRM opens while the external output voltage controlfunction is in use, a unit generates the rated voltage.If the terminal VB and the terminal -S are connected and the terminalTRM opens as shown in Fig.1.1, the unit stops generatingthe output voltage.! You can change the control voltage of TRM from 0 - 2.75V to 0 -5.5V by serially connecting 1.73W to the TRM terminal as shownin Fig.1.2.+OUTCN1+M+SVBTRM-SCB-S-MCN2VBTRM-S-OUTPlease connectVB and -Son CN1You can also controlvoltage externallythrough TRM on CN1.However, werecommend using TRMon CN2 just in caseCN1 comes off.almost 0-110%when 0-2.75VFig.1.1 Wiring 1(When TRM control voltage is 0 - 2.75V)+OUTCN1+M+SVBTRM-SCB-S-MCN2VBTRM1.73kW1.6kW + 130W( 1.5kW + 220W)-S-OUTPlease connectVB and -Son CN1You can also controlvoltage externallythrough TRM on CN1.However, werecommend using TRon CN2 just in caseCN1 comes off.Example ofresistor combinationalmost 0-110%when 0-5.5VFig.1.2 Wiring 2(When TRM control voltage is 0 - 5.5V)! If the output voltage decreases to almost 0V, a fan may stop, outputripple may become large and PG signals may turn to“High.”!Please do not change TRM voltage rapidly.Bad exampleGood exampleFig.1.4. Example of measuring output ripple and ripple noise1.8 Remote ON/OFF? PDA300F,PDA600F! These models have a remote ON/OFF function.You can operate the remote ON/OFF function by sending signalsto CN1. Please see Table 1.2 for specifications and Fig.1.5 forconnecting examples.! Remote ON/OFF circuits (RC2 and RCG) are isolated from input,output, FG and AUX.!Please note the followings when using the remote ON/OFF function.1The output stops when a current fl ows to RC.2The current fl own to RC is a 5mA type (maximum 12mA).3 If the output voltage is turned off through the remote ON/OFF circuit,the built-in fan stops.4 If the output voltage is turned off through the remote ON/OFF circuit,PG signals turn to“High.”5 Description in this section is based on the assumption that youwill use one unit alone. If you are planning to use the units in paralleloperation or use multiple units for a single system, pleasecheck necessary voltage and current values.PDA-23