title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Medical TypeInstruction Manual■Parallel operationFor parallel operation, please take the following steps:1 (Before wiring) set the output voltage of each unit to the desiredvalue. The output voltage difference between the units must beless than 0.1V or 1% of the rated output voltage, whichever issmaller.2 Wire the power supplies as shown in Fig. 5.14. Make sure theoutput wires of the unit connected in parallel are of the samelength and the same type.3 Make sure the total output current does not exceed the valuedetermined by the following formula:Output current inparallel operationThe rated=current per unitX (Number of unit) X0.85*Make sure the current drawn from each unit is less than therated output current.-When adjusting the output voltage after wiring, repeat the abovementionedsteps (1 to 3).-If the number of units in parallel increases, the input current increasesas well. Make sure the input equipment and wires haveenough current capacity.-The maximum number of units for parallel connection is 5.-Master-Slave operation is not possible.CB and±S CB and±SInstall H-SN-31 Remove H-SN-31 Remove H-SN-31No.1 No.2 No.5-V-V-VFG AC ACFG AC ACFG AC AC+V (N) (L)+V (N) (L)+V (N) (L)-When using remote sensing, make sure to finish wiring +S and ?S first. The designated harness is available for sale. Contact usfor more details.-When using remote sensing, pay attention to the following:1 Wiring must be done carefully. If there is bad connection on theload lines due to loose screws, etc., the load current flows intothe sensing lines and the internal circuit of the power supply maybe damaged.2 Make sure the wires between the load and the power supply arethick enough to keep the line drop less than 0.3V.3 If the sensing wires are long, place C1 and R1 across the loadlines.4 Use a twisted pair wire or a shielded wire for the sensing lines.5 Do not draw the output current from +M, ?M, +S or ?S.6 The impedance of the wiring or the load may cause the outputvoltage to oscillate or fluctuate.Test to confirm remote sensing works fine. If the output voltage isfound to be unstable, the following methods are recommended:- Remove the remote sensing line on the minus side and short?S and ?M.- Use C1, R1, and R2.CN1+M+S-S-M+V-VC1Short at CN1(H-SN-31)LoadV.ADJV.ADJV.ADJFig.5.15 When not using remote sensing function(-) (+)LoadFig.5.14 Parallel operation condition (Example of PJMA1000F,PJMA1500F)-If the output current is less than 10% of the rated output current,the output voltage may fluctuate.The required minimum current is different depending on the modeland the number of units in parallel. Consult us for more details.-If the length of the output wires of each unit is different, the outputcurrent from each unit will be unbalanced. Make sure to use outputwires of the same length for all units in parallel.■Remote sensing-These models are equipped with a remote sensing function.If the remote sensing is not used, the following terminals of CN1must be shorted:+S and +M?S and ?MWhen the power supply is shipped from our factory, a designatedharness (H-SN-31) is attached to CN1. If remote sensing is notused, there is no need to remove the harness.-The wire connection when remote sensing is used or not used isshown in Fig. 5.15 - Fig. 5.16.CN1+M+S-S-M+V-VWire the sensing lines as closeas possibleR2C1R1LoadFig.5.16 When using remote sensing function●?W1 (PJMA600F, PJMA1000F, PJMA1500F)-The ?W1 option models provide remote sensing, low outputvoltage alarm (LV alarm).-The appearance of the ?W1 option model is different from thatof the standard mode. Contact us for more details.-Designated harnesses are available for sale. See OptionalParts.-The differences from the standard model are shown in Table 5.11.March 15, 2023PJMA-18