Operating Principle & Precautions for Use Others Reliability Operating Principle & Precautions for Use Input condition What happen if high/low input frequency is applied? What is harmful effect of input line impedance? What is harmful effect of out of input voltage spec operation? Is it possible to use UPS as input source? Is it allowed to apply DC voltage to AC-DC unit? What is meaning of (L) and (N) on AC terminal? Is it possible to apply 400Hz input to AC-DC unit? How to use Three-phase EMI Filter to Single-phase input? Load condition How can pulse/peak current be drawn? How to read derating curve? Why does audible sound occur with pulse load? What is influence of back electromotive force from motor on PSU? Does rated power change when output voltage adjusted? Cautions when connecting FG and -V. What is output voltage setting and accuracy? How to calculate external capacitor value from required hold-up time? EMC Where is noise sources and pathway in PSU? Noise (Emission/EMI) type and How to reduce? Noise (Immunity/EMS) type and How to protect? What is EMI filter recommended for DC-DC converter? Protection circuit What is Inrush current protection? How to protect DC-DC converter against reverse voltage? Attached function How to use remote sensing in series/parallel connection? What's the difference between parallel / redundancy operation? Show DC-DC converter application circuit What "Open collector" means? How to use Remote Control Function with -R option? (Enclosed and Open frame type Power Supply) Cautions in Series Operation Cautions in Series Operation of Power Supply with Synchronous Rectification Circuit Others Operation tutorial of Voltage doubler circuit Component Choice, Others Component Choice How to choose External Fuse? How to choose Circuit Breaker? How to choose wiring cable? How much is the tightening torque? What is Number of Possible Installation Metric Ring Terminals? Others What is measurement item in TEST DATA? How to calculate calorific value? What does the content indicated on name plate mean? How to read lot number? What's QR code meaning? (Enclosed and Open frame type Power Supply) Ordering information for Semi-standard. Withstand Voltage and Insulation Resistance Test Instructions Why does LED light during Withstand Voltage Test? What is Difference between PBA series and PJA/PLA series What is Difference between KH and KL series How is the temperature measured? Reliability Reliability What is expected life of Electrolytic capacitor? How to Calculate Electrolytic Capacitor Lifetime in case Ambient Temperature Changing? What is MTBF? How long is expected life time in FAN built-in PSU? How long is the storage limitation? What is harmful effect of out of ambient temperature spec operation? What is Heat Cycle Test? What is MSL(Moisture Sensitivity Level)? Standard Safety standard What is IEC60950-1? What is IEC60601-1-2 Ed.4th? What is IEC60335-1? What is UL508? What is CB Test Report? What is CE Marking for Power Supply? What is CCC Certification? What is ENEC mark?