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- DC-DC-Wandler /
[Cause (1)] The proper input voltage is not being applied:
Please check the connections of the input voltage, input switching terminals, and output terminals.
[Cause (2)] The over voltage protection function is operating:
The output is interrupted by the over voltage protection function if the output voltage variable trimmer (V.ADJ) is turned too far or the settings of the over voltage value adjustment trimmer are too low.
[Cause (3)] The remote sensing is open:
The output is interrupted by the over voltage protection function if the short piece between the S terminal and the DC output terminals is disconnected.
[Cause (4)] The over current protection function is operating:
The over current protection function operates in cases such as when the over current value adjustment trimmer is turned too far or if the load is short.
[Cause (5)] The remote ON/OFF has shorted:
The output will be interrupted by the remote ON/OFF function when there is a short between the RC terminals or if the “L” level signal is inputted.
[Cause (6)] The capacity of the external capacitor is too great：
There are models where the capacities of the external capacitors are limited. There are cases where the output does not start up when excessive capacity is connected to the load or if there is load that indicates low impedance characteristics during startup as with DC-DC converters.