asic Characteristics Data asic Characteristics Data Model EF NF EF NF E9F N9F E2F N2F E24F N24F E4F N4F Circuit method Switching frequency *2 [khz] Input current [] * * The value of input current is at CIN V and %. *2 urst operation at light loading, frequency is change by use condition. Please contact us about detail. Rated input fuse Inrush current protection circuit Material PC/Pattern Single sided Double sided Series/Parallel operation availability Series operation Parallel operation Flyback converter - 2. 2V 2. Thermistor FR-4 Yes Yes No Flyback converter - 2. 2V. Thermistor FR-4 Yes Yes No ctive filter 2 - Flyback converter - 2 ctive filter - LLC resonant converter 4 - ctive filter - LLC resonant converter 4 - ctive filter - LLC resonant converter 4 -.9 2V. Thermistor FR-4 Yes Yes No.2 2V Thermistor FR-4 Yes Yes No 2. 2V SCR FR-4 Yes Yes No 4. 2V Relay FR-4 Yes Yes No -2
Terminal locks -4 2 Functions - 2. Input Voltage Range 2.2 Inrush Current Limiting 2. Overcurrent Protection 2.4 Peakcurrent Protection 2. Overvoltage Protection 2. Thermal Protection 2. Output Ripple and Ripple Noise 2. Remote ON/OFF 2.9 Output Voltage djustment Range 2. Isolation 2. Signal Output - - - - - - - - - - - Peak Current - 4 Series/Parallel Operation - 4. Series Operation 4.2 Parallel Operation - - ssembling and Installation Method -. Installation Mounting methods.2 Derating curve depend on input voltage. Derating curve depend on ambient temperature.4 Expected Life and Warranty. pplicable Electric Cable. Others - -9-2 -22-2 -2 Option -2. Outline of option -2 -
Terminal locks NF EF 4 4 2 2 NF EF 4 2 N9F 4 2 E9F 4-4 4 2 2 Terminal Terminal Number Name Function PE Protective earth Terminal 2 C (N) Input Terminals C (L) 4 +VOUT +Output Terminals -VOUT -Output Terminals DC_OK LED for output voltage confi rmation TRM djustment of output voltage
E2F N2F 4 å 9 å 9 2 N24F 2 E24F 4 9 å å 9 N4F 2 2 E4F 4 9 å 9 å 2 2 Terminal Terminal Number Name Function PE Protective earth Terminal 2 C (N) Input Terminals C (L) 4 DC_OK Output voltage confirmation(relay contact) +VOUT +Output Terminals -VOUT -Output Terminals LRM LED larm for lowered output voltage DC_OK LED for output voltage confi rmation 9 TRM djustment of output voltage +RC Remote ON/OFF Terminals å -RC -
2 Functions 2. Input Voltage Range Input voltage range of the power supplies is from CV to C24V or DC (please see SPECIFICTIONS for details). To comply with safety standards, input voltage range is C- C24V (/Hz). If input value doesn t fall within above range, a unit may not operate in accordance with specifi cations and/or start hunting or operate protection circuit or fail. If you need to apply a square waveform input voltage, which is commonly used in UPS and inverters, please contact us. When the input voltage changes suddenly, the output voltage accuracy might exceed the specifi cation. Please contact us. EF/F/9F, NF/F/9F Operation stop voltage is set at a lower value than of a standard version (derating is needed). -Use Conditions Output EF,NF W EF,NF 2W E9F,N9F W Input CV or DCV Duty s/s *Please avoid using continuously for more than second under above conditions. Doing so may cause a failure. 2.2 Inrush Current Limiting n inrush current limiting circuit is built-in. If you need to use a switch on the input side, please select one that can withstand an input inrush current. EF/F/9F/2F, NF/F/9F/2F Thermistor is used in the inrush current limiting circuit. When you turn the power ON/OFF repeatedly within a short period of time, please have enough intervals so that a power supply cools down before being turned on. E24F/4F, N24F/4F Thyristor technique (E/N24F) and power relay technique (E/N4F) is used in the inrush current limiting circuit. When you turn the power ON/OFF repeatedly within a short period of time, please have enough intervals so that the inrush current limiting circuit becomes operative. When the switch of the input is turned on, the primary inrush current and secondary inrush current will be generated. - 2. Overcurrent Protection EF/F/9F, NF/F/9F overcurrent protection circuit is built-in and activated at % of the rated current. unit automatically recovers when a fault condition is removed. Please do not use a unit in short circuit and/or under an overcurrent condition. Intermittent Operation Mode (except E/N9F) When the overcurrent protection circuit is activated and the output voltage drops to a certain extent, the output becomes intermittent so that the average current will also decrease. Output Voltage Shutdown If the output voltage drops according to the overcurrent protection circuit operating continuously for about. second, the output voltage may shut down. To recover the output voltage, remove a condition that is causing an overcurrent, shut down the input voltage, wait more than minutes and turn on the C input again. E2F/24F/4F, N2F/24F/4F n overcurrent protection circuit is built-in and activated at % of the peak current. unit automatically recovers when a fault condition is removed. Please do not use a unit in short circuit and/or under an overcurrent condition. Intermittent Operation Mode When the overcurrent protection circuit is activated and the outputvoltage drops to a certain extent, the output becomes intermittent so that the average current will also decrease. 2.4 Peakcurrent Protection E2F/24F/4F, N2F/24F/4F Peakcurrent protection is built-in (refer to for Peak loading). If this function comes into effect, the output is shut down. few seconds later, unit automatically recovers. ut if the overcurrent condition has not been released, the output will stop again (intermittent Operation Mode). *The recovery time varies depending on input voltage and load condition. 2. Overvoltage Protection EF/F/9F, NF/F/9F n overvoltage protection circuit is built-in. If the overvoltage protection circuit is activated, shut down the input voltage, wait more than minutes and turn on the C input again to recover the output voltage. Recovery time varies depending on such factors as input voltage value at the time of the operation. E2F/24F/4F, N2F/24F/4F n overvoltage protection circuit is built-in. unit automatically recovers when the fault condition is removed. Note : Please avoid applying a voltage exceeding the rated voltage to an output terminal. Doing so may cause a power supply to malfunction or fail. If you cannot avoid doing so, for example, if you need to operate a motor, etc., please install an external diode on the output terminal to protect the unit.
2. Thermal Protection E2F/24F/4F, N2F/24F/4F thermal protection circuit is built-in. The thermal protection circuit may be activated under the following conditions and shut down the output. When a temperature continue to exceed the values determined by the derating curve. 2 When a current exceeding the rated current is applied. When convection stops. 4 When peak load is applied in conditions other than those shown in Section. unit automatically recovers when the fault condition is removed. 2. Output ripple and ripple noise Output ripple noise may be infl uenced by measurement environment, measuring method fi g 2. is recommended. +Vout 2. Signal Output Functions of LED indicators and signal output (E series) E2F/24F/4F, N2F/24F/4F Functions of LED indicators and signal output in the form of relay contact are shown below. Checking the presence/absence of voltage at the output terminal of a power supply is possible. Table 2. Description of the signal output Signal Output Normal Output is decreasing DC_OK (LED: Green) ON OFF LRM (LED: Red) OFF ON DC_OK (Relay Contact) * Short Open *DC_OK signal (relay contact) is built in E series. This circuit is insulated from other circuits (input and output circuits). Caution on signal outputs : The timing of signals might be very depending on models, input and load conditions. Please make sure enough evaluation. -Vout C C2 + mm Load Peak Current Osiloscope/ Ripple noise meter w:2mhz Differential probe C:Film capacitor.mf C2:luminum electrolytic capacitor 22 mf Fig.2. Measuring method of Ripple and Ripple Noise 2. Remote ON/OFF E2F/24F/4F, N2F/24F/4F You can reduce the standby power by Remote ON/OFF. To do so, connect an external DC power supply and apply a voltage to a remote ON/OFF connector. Please contact us. E2F/24F/4F, N2F/24F/4F [] The units can generate the peak current under the following conditions. -t[sec -Ip[Rated peak current -Iave[Rated current -Duty[% (E2F/24F, N2F/24F) -Duty[2% * (E4F, N4F) * In case of mounting orientation (C), duty is less than %. t -Duty= X [%] t+t2 2.9 Output Voltage djustment Range To increase an output voltage, turn a built-in potentiometer clockwise. To decrease the output voltage, turn it counterclockwise. Output current Ip:Peak current Iave:verage current 2. Isolation When you run a Hi-Pot test as receiving inspection, gradually increase the voltage to start. When you shut down, decrease the voltage gradually by using a dial. Please avoid a Hi-Pot tester with a timer because, when the timer is turned ON or OFF, it may generate a voltage a few times higher than the applied voltage. t t2 Fig.. Peak current -
4 Series/Parallel Operation 4. Series Operation You can use a power supply in series operation. The output current in series operation should be lower than the rated current of a power supply with the lowest rated current among the power supplies that are serially connected. Please make sure that no current exceeding the rated current fl ows into a power supply. Power + Supply - Power + Supply - (a) Load Power + Supply - Power + Supply - (b) Load Load ssembling and Installation Method. Installation Mounting methods elow shows mounting orientation. If install other then standard mounting orientation, please fi x the power supply for withstand the impact and vibration. OUTPUT DIN rail INPUT INPUT Standard (C) OUTPUT INPUT OUTPUT OUTPUT INPUT INPUT OUTPUT Fig.4. Examples of connecting in series operation 4.2 Parallel Operation There is no current balance function. When operating in parallel, such as diode-or, please use on the output voltage was adjusted enough to balance the current. Exceeds the rated output current, the output is shut down. Redundancy operation is available by wiring as shown below. Power Supply Power Supply + - + - I I2 I Load Fig.4.2 Example of connecting in redundancy operation (D) (E) Fig.. Mounting orientation When you mount a power supply on a DIN rail, have the area marked catch one side of the rail and push the unit to the direction of. To remove the power supply from the rail, either push down the area marked C or insert a tool such as driver to the area marked D and pull the unit apart from the rail. When you couldn t remove the unit easily, push down the area marked C while lightly pushing the unit to the direction of E. C E Even a slight difference in output voltage can affect the balance between the values of I and I2. Please make sure that the value of l does not exceed the rated current of a power supply. l [ rated current value D Fig..2 Installation method -
Shown below the notes about installation clearance of a unit. EF/F/9F, NF/F/9F Installation clearance at above and below the unit. Please have clearance of at least 2mm above and below the unit to avoid heat accumulation. 2 Installation clearance at the side of the unit. Please have clearance of at least mm side the unit to insulating the internal components. However, refer to Table., if adjacent device of the unit (including power supply) is a heat source. 2 2mm or more Table.2 Installation clearance at the side of the unit. No. Model djacent device of the unit Non-heat source Heat source(*) E2F, N2F mm or more 2 E24F, N24F mm or more E4F, N4F mm or more mm or more *Reference value when same power units are adjacent..2 Derating curve depend on input voltage EF/F/9F, NF/F/9F Derating curve depend on input voltage. Derating curve depend on input voltage is shown in Fig... [%] 2mm or more Load Factor Fig.. Installation clearance 9 [C V] Table. Installation clearance at the side of the unit. No. Model djacent device of the unit Non-heat source Heat source(*) EF, NF mm or more mm or more 2 EF, NF mm or more mm or more E9F, N9F mm or more mm or more *Reference value when same power units are adjacent. E2F/24F/4F, N2F/24F/4F Installation clearance at above and below the unit. Please have clearance of at least 2mm above and below the unit to avoid heat accumulation. 2 Installation clearance at the side of the unit. Please have clearance of at least mm side the unit to avoid interfering with heat radiation from housing. However, refer to Table.2, if adjacent device of the unit (including power supply) is a heat source. Fig.. Derating curve depend on input voltage E4F, N4F Derating curve depend on input voltage. Derating curve depend on input voltage is shown in Fig... [%] Load Factor [C V] Fig.. Derating curve depend on input voltage 2 2mm or more 2mm or more Fig..4 Installation clearance -9
. Derating curve depend on ambient temperature The operative ambient temperature as different by input voltage. Derating curve is shown below. In the hatched area,the specifi cation of Ripple,Ripple Noise is different from other area. Derating Curve () EF, NF 4 2 - (C), (D), (E) Vin=CV - V -2-2 4 4 * Derating curve depend on input voltage is required. Fig.. Derating curve depend on ambient temperature 4 2 - (D), (E) Vin=CV - 24V -2-2 4 *, (C) Fig.. Derating curve depend on ambient temperature EF, NF 4 2 - -2 -, (D), (E) Vin=CV - V * (C) 2 4 * Derating curve depend on input voltage is required. Fig..9 Derating curve depend on ambient temperature E9F, N9F 4 2 - (C), (D), (E) Vin=CV - V -2-2 44 * Derating curve depend on input voltage is required. Fig.. Derating curve depend on ambient temperature 4 2 - (D), (E) Vin=CV - 24V -2-2 4 *, (C) Fig..2 Derating curve depend on ambient temperature E2F, N2F 4 2 - -2 - (C), (D), (E) Vin=CV - V 2 4 Fig.. Derating curve depend on ambient temperature 4 2 (C), (D), (E) Vin=CV - 24V 4 4 2 (E) (C), (D) Vin=CV - 24V - -2-2 4 Fig..4 Derating curve depend on ambient temperature - -2-2 4 4-2 Fig.. Derating curve depend on ambient temperature
E24F, N24F (C), (D), (E) mbient temperature indicates the temperature of the inlet of the air. 4 2 Vin=CV - V - -2-2 4 Fig.. Derating curve depend on ambient temperature 4 2 (C), (D), (E) Vin=CV - 24V - -2-2 4 Fig.. Derating curve depend on ambient temperature E4F, N4F 4 2 - Vin=CV - V (D), (E) (C) -2-2 2 4 * Derating curve depend on input voltage is required. Fig.. Derating curve depend on ambient temperature 4 2 - -2 - * (D), (E) Vin=CV - 24V (C) 2 4 Fig.. Derating curve depend on ambient temperature mbient temperature measurement point irflow Fig..9 mbient temperature measurement point EF/F/9F, NF/F/9F 4 2 - -2 - Vin=CV - 24V * Forced air (.m /min) - (E) 2 4 * Derating curve depend on input voltage is required. Fig..2 Derating curve depend on ambient temperature Temperature of Forced air Use the temperature measurement point as shown in Fig..2 to.2. Please use at the temperature dose not exceed the values in Table.. Please also make sure that the ambient temperature does not exceed C. EF, NF T2 POINT (C) T POINT C (T2) POINT (C) Fig..2 Temperature measurement point (Forced air) -2
EF, NF T2 POINT (C) POINT C (T2) E2F/24F, N2F/24F 4 2 Vin=CV - 24V Forced air - (E) T POINT (C) Fig..22 Temperature measurement point (Forced air) E9F, N9F T2 POINT * (C) T POINT (C) * Please be careful of electric shock or earth leakage in case of temperature measurement, because POINT and POINT is live potential. Fig..2 Temperature measurement point (Forced air) Table. Specifi ed temperature of the measurement point No. Model Temperature measurement point Point Point Point C EF, NF C C C 2 EF, NF C C C E9F, N9F C C * - -2-2 4 Fig..2 Derating curve depend on ambient temperature E4F, N4F 4 2 Vin=CV - 24V * Forced air - (E) - -2-2 4 * Derating curve depend on input voltage is required. Fig..2 Derating curve depend on ambient temperature Temperature of Forced air Use the temperature measurement point as shown in Fig.2. Please use at the temperature does not exceed the values in Table.4. Please also make sure that the ambient temperature does not exceed C. Temperature irflow measureing point OUTPUT CSE 4- JOINT PRT irflow Fig..2 Temperature measurement point (Forced air) INPUT CHSSIS Fig..24 Installation removing chassis and case Thermocouple for temperature checking must be added into temperature measuring point after removing chassis and case. Then assembling chassis and case again, the temperature can be measured. Chassis and case are fi xed in 4 parts which are shown in the fi gure. Please contact us about detail. -22 Table.4 Specifi ed temperature of the measurement point No. Model temperature measurement point E2F, N2F C 2 E24F, N24F C E4F, N4F C
.4 Expectancy life and warranty Please note derating curve depend on input voltage is required. Expectancy Life. Table. Expectancy Life (EF, NF) Expectancy Life Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = C or less years years Ta = C years years Ta = C or less years 9years Ta = C years 4years Ta = 4C or less years years Ta = C years years Ta = C or less years 9years Ta = C years 4years C Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = C years years D Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = C years years E Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = C years years Forced air C - 24V Ta = C years years Table. Expectancy Life (E9F, N9F) Expectancy Life Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years 4years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years C Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years D Ta = C or less years years Ta = 4C years 4years Ta = C or less years years Ta = 4C years years E Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Forced air C - 24V Ta = C years years Table. Expectancy Life (EF, NF) Expectancy Life Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C 9years years Ta = C or less years years Ta = 4C 9years years Ta = 4C or less 9years years Ta = C years years C Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years D Ta = C or less years years Ta = 4C years 2years Ta = 4C or less years years Ta = C years 4years E Ta = C or less years years Ta = 4C 9years years Ta = C or less years years Ta = 4C years years Forced air C - 24V Ta = C years years Table. Expectancy Life (E2F, N2F) Expectancy Life Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = C or less years years Ta = C years years Ta = C or less years years Ta = C years 4years Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years C Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years D Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years E Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Forced air C - 24V Ta = C years years -2
Mounting method C D Mounting method C D E Table.9 Expectancy Life (E24F, N24F) Expectancy Life Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = 4C or less years years Ta = C years years Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Forced air C - 24V Ta = C years years Table. Expectancy Life (E4F, N4F) Expectancy Life Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years 4years Ta = 4C years years Ta = C years 2years Ta = C or less years 4years Ta = C years years Ta = C 4years 2years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Ta = C or less years years Ta = 2C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Forced air C - 24V Ta = C years years Warranty Mounting method C D Mounting method C D E Table. Warranty (EF, NF) Warranty term Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = C or less years years Ta = C years years Ta = C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = C years years Forced air C - 24V Ta = C years years Table.2 Warranty (EF, NF) Warranty term Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = 4C years 2years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Forced air C - 24V Ta = C years years -24
Mounting method C D Table. Warranty (E9F, N9F) Warranty term Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 4C years years Forced air C - 24V Ta = C years years Table.4 Warranty (E2F, N2F) Warranty term Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = C or less years years Ta = C years years Ta = C or less years years Ta = C years 4years Ta = 4C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years C,D Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Forced air C - 24V Ta = C years years Table. Warranty (E24F, N24F) Warranty term Mounting Cooling Input verage ambient method method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years years Ta = C years years Ta = C or less years years Ta = C years years Ta = C or less years years Ta = 4C years years Ta = 4C or less years years Ta = C years years C,D Ta = 2C or less years years Ta = C years years Ta = 4C or less years years Ta = C years years Forced air C - 24V Ta = C years years Mounting method C D E Table. Warranty (E4F, N4F) Warranty term Cooling Input verage ambient method voltage temperature (year) Io[% %<Io[% Ta = 4C or less years 4years Ta = 4C years years Ta = C 4years 2years Ta = C or less years 4years Ta = C years years Ta = C 4years 2years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Ta = C or less years years Ta = 2C years years Ta = C or less years years Ta = 4C years years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Ta = C or less years years Ta = 2C years years Ta = 2C or less years years Ta = C years years Forced air C - 24V Ta = C years years. pplicable Electric Cable Input terminals, Output terminals EF/F/9F/2F/24F Solid wire Stranded wire Sheath strip length E4F Solid wire Stranded wire Sheath strip length RC terminals Table. pplicable Wire Input terminals Output terminals Diameter. mm to 2. mm (WG.24 to WG.).2mm 2 to.2mm 2 (WG.24 to WG.) Conductor diameter more than.mm mm Table. pplicable Wire E2F/24F/4F, N2F/24F/4F Solid wire Stranded wire Sheath strip length Input terminals Output terminals Diameter. mm to 2. mm (WG.2 to WG.).mm 2 to.2mm 2 (WG.2 to WG.) Conductor diameter more than.mm mm Table.9 pplicable Wire RC terminals Diameter. mm to. mm (WG.24 to WG.).2 mm 2 to. mm 2 (WG.24 to WG.) mm -2
. pplicable Electric Cable While turning on the electricity, and for a while after turning off, please don t touch the inside of a power supply because there are some hot parts in that. When a mass capacitor is connected with the output terminal (load side), the output might become the stop or an unstable operation. Please contact us for details when you connect the capacitor. Option. Outline of option -C -Option -C units have coated internal PC for better moisture resistance. -E (E9F, N9F) -Option -E units acquires NEC Class2. -N2 (E2F/24F/4F, N2F/24F/4F) -Option -N2 units have attachment with screw mounting instead of DIN rail mounting. Mounting holes pitch are shown in Table.. Fig.. Image of option -N2 4-f4. Fig..2 Mounting place (screw holes) Table. Mounting holes pitch No. Model E2F, N2F 2mm mm 2 E24F, N24F 4mm mm E4F, N4F 4mm mm -2