title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Enclosed TypeInstruction Manual2.7 Constant current set value external variables!The output current for the constant current can be adjustable bythe external voltage applied to between ITRM and COM on CN3.When the ITRM terminal voltage is set at less than 2.5 V, the constantcurrent set value can be changed.Do not set the external applied voltage of the terminal to -0.3 V orless, and 5.0 V or more.When the output current is adjusted to around 0A, the unit mightbe unstable.Load factor of 100% or higher should be avoided since it will beused outside the specifi cations.To change it, you can connect an external resistor or apply voltagefrom the outside.The voltage betweenITRM and COM [V]Output current [A] = XRated output current [A] --- 22.5 [V]4.7kΩ5V10kΩITRM0.01μFCOMFig. 2.2 ITRM circuit!If the output voltage becomes less than approximately 5% of therated voltage during constant current operation, the output mightbe unstable or stop. Please contact us for more details.2.8 Remote ON/OFF!These models have a remote ON/OFF function.!You can operate the remote ON/OFF function by sending signalsto CN1 or CN2. Specifications are shown in Table 2.3 and connectionexamples are shown in Fig. 2.3.!Remote ON/OFF circuit (RC2, RCG) is isolated from input, output,FG, AUX and various function terminals.!Please note the followings when using the remote ON/OFF function.1The output stops when the current is drawn in RC2.2The current fl owing into RC 2 is 5mA typ (12mA max).3The PG signal turns to“High”when the output voltage is turnedoff with remote ON/OFF.4AUX can be used even if the output is off with remote control.5Even if the output is turned off by remote control, the built-infans will continue to operate.6Since the contents of this manual are values when using oneunit, pay attention to the necessary current / voltage value whenoperating in parallel or in multiple units.7If voltage / current other than those shown in Table 2.3 is appliedbetween RC2 and RCG, the output voltage may not beoutput correctly.Table 2.3 Specifi cations of remote ON/OFFConnection methodFig. 2.3 (a)Fig. 2.3 (b)Fig. 2.3 (c)OutputSW openSW openSW closeSW LogicOFF(3mA min)(3mA min)(0.1mA max)Ground levelRCGAUXGRCG, AUXG2.2kΩ12V150Ω(a)AUXRC1RC2V1R1SWRCGAUXG12V2.2kΩ150Ω(b)AUXRC1RC2RCGSWAUXG(Example: V1=5V, R1=620Ω)12V2.2kΩ150ΩAUXRC1RC2SWRCG(c)AUXGFig. 2.3 Examples of connecting remote ON/OFF circuitPCA-24