Rugged Environment AC-DC Converters >100 Watt 250 Watt AC-DC Converters with PFC KP Series KP Series Input to output isolation Double output * Power factor >0.95, harmonics <IEC/EN61000-3-2 * Output power up to 280 Watt * Input over- and undervoltage lock-out * Efficient input filter and built-in surge and transient suppression circuitry * 4000 Vrms input to output electric strength test * Fully isolated outputs * Outputs open- and short-circuit proof Safety according to IEC/EN 60950 LGA C 111 4.4" 3U 80 3.2" 16 TE Summary The KP series is an extension of the K series of AC-DC converters with an increased output power level of up to 280 W depending on the operating ambient temperature requirements. The KP converters are optimized for use in 230 V AC mains applications and feature high efficiency, high reliability, low output voltage noise and excellent dynamic response to load/line changes. The converter inputs are protected against surges and transients occuring at the source lines. An input over- and undervoltage lock-out curcuitry disables the outputs if the input voltage is outside the specified range. The LKP types include an inrush current limitation preventing circuit breakers and fuses from being damaged at switch-on. The outputs are open- and short-circuit proof and are protected against overvoltages by means of a built-in suppressor diode. The outputs can be inhibited by a logic signal applied to the connector pin 18 (i). If the inhibit function is not used pin 18 must be connected with pin 14 to enable the outputs (fail safe). LED indicators display the status of the converter and allow visual monitoring of the system at any time. Table of Contents 168 6.6" Full input to output, input to case, output to case and output to output isolation is provided. The modules are designed and built according to the international safety standards IEC/EN 60950. The case design allows operation up to an operating ambient temperatur of 71C with reduced output power. Depending on the ambient temperature requirements, however, the output power can be up to 280 W. An internal temperature sensor generates an inhibit signal which disables the outputs if the case temperature TC exceeds the specified limit. The outputs are automatically reenabled when the temperature drops below the limit. Various options are available to adapt the converters to individual applications. Especially for battery charger applications an external temperature sensor has been designed to allow for temperature compensated battery charging. The modules may either be plugged into 19" rack systems according to DIN 41494 or be chassis mounted. Page Page Summary .......................................................................... 1 Type Survey and Key Data .............................................. 2 Type Key .......................................................................... 2 Functional Description ...................................................... 3 Electrical Input Data ......................................................... 4 Electrical Output Data ...................................................... 6 Auxiliary Functions ......................................................... 10 Electromagnetic Compatibility (EMC) ............................ 14 Immunity to Environmental Conditions ........................... 15 Mechanical Data ............................................................ 16 Safety and Installation Instructions ................................ 17 Description of Options .................................................... 20 Accessories .................................................................... 23 MELCHER The Power Partners. Edition 4/4.99 1/23 KP Series AC-DC Converters >100 Watt Rugged Environment Type Survey and Key Data Non standard input/output configurations or special custom adaptations are available on request. See also: Commercial Information: Inquiry Form for Customized Power Supply. Table 1: Type survey 1 2 3 4 5 Output current ,input voltage and efficiency 1 hmin TA = 60C Ui min...Ui max hmin TA = 70C [%] Io nom [A] 187...255 V AC [%] Io nom [A] Output voltage Uo [V DC] TA = 50C Io nom [A] 24 2 11.6 LKP 5661-5R 85 10.4 LKP 5660-6R 86 9.6 LKP 5662-7R 85 25.25...28.25 2 10 LKP 5741-5R 4 85 9 LKP 5740-6R 4 86 8 LKP 5742-7R 4 85 24, 24 5.8, 5.8 LKP 5661-5R 85 5.2, 5.2 LKP 5660-6R 86 4.8, 4.8 LKP 5662-7R 85 48 3 5.8 LKP 5661-5R 85 5.2 LKP 5660-6R 86 4.8 LKP 5662-7R 85 50.5...56.5 3 5 LKP 5741-5R 4 85 4.5 LKP 5740-6R 4 86 4 LKP 5742-7R 4 85 Ui min...Ui max 187...255 V AC Opt. Ui min...Ui max 187...255 V AC hmin [%] E D P5 T B1 Efficiency at Ui nom and Io nom. Parallel connection of Uo1 and Uo2. Series connection of Uo1 and Uo2. Designed for battery charging. Needs external temperature sensor. Option P not available for LKP 5741-5R, LKP 5740-6R, LKP 5742-7R. Type Key Type Key L KP 5 6 60 -6 E R P D T B1 Input voltage range Ui: 187...255 V AC, 47...63 Hz ............................. L Series ............................................................................ KP Number of outputs (5 for double outputs) ........................ 5 Nominal voltage output 1 Rectifier version .............................................. 6 Battery charger version ................................... 7 Other specifications .................................... 0...9 Symmetrical double output units: Nominal voltage output 1/output 2, Uo1/2 nom 24 V/24 V (48 V series connection) ............... 60 25.25...28.25 V (50.5...56.5 V ser. conn.) ..... 40 other symmetrical voltages .................... 80...99 1 1 Operational ambient temperature range TA: -25...50C ..................................................... -5 -25...60C ..................................................... -6 -25...71C ..................................................... -7 Customer specific ..................................... -0...-4 Auxiliary functions and options: Output voltage control input ........................... R Inrush current limitation ................................... E Potentiometer (output voltage adjustment) ..... P Save data signal (D0...DD, to be specified) ... D Current sharing ............................................... T Cooling plate ................................................. B1 1 2 2 2 External wiring of main and second output depending upon the desired output configuration (see: R-Function for different output configurations). Feature R excludes option P and vice versa. Option P not available for LKP 5740-6R. Example: LKP 5740-6RD3: Power factor corrected AC-DC converter, input voltage range 187...255 V AC, double output, each providing 25.25...28.25 V/4.5 A, equipped with feature R, undervoltage monitoring option, operational ambient temperature range -25...60C. MELCHER The Power Partners. Edition 4/4.99 2/23 Rugged Environment AC-DC Converters >100 Watt KP Series Functional Description The input voltage is fed via an input fuse, an input filter, a rectifier and an inrush current limiter to a single transistor boost converter. This converter provides a sinusoidal input current (IEC/EN 61000-3-2, class D equipment) and sources a capacitor with a voltage of 360-370 VDC. This capacitor sources a single transistor forward converter. Each output is powered by a separate secondary winding on the main transformer. The resultant voltages are rectified and their ripples smoothed by a power choke and an output filter. The control logic senses the main output voltage Uo1 and generates, with respect to the maximum admissible output currents, the control signal for the primary switching transistor. The second output is controlled by the main output but has independent current limiting. If the main output is driven into current limitation, the second output voltage will fall as well and vice versa. P~ 30 32 Y Y 16 18 20 22 Output 1 filter 4 Y 03002 14 Vo1- 4 Vo2+ 6 Y 8 Vo2- 10 Y 24 - 1 2 3 4 Transient suppressor (VDR). Inrush current limiter (NTC or option E). Input fuse. Hold-up capacitor. Fig. 1 Block diagram of symmetrical double output converters LKP 5000 MELCHER The Power Partners. Edition 4/4.99 3/23 R i D T 12 Vo1+ Output 2 filter 2 Ci + 360 V DC 3 Input filter 1 Boost converter (PFC) Y Control circuit N~ 26 28 Forward converter (approx. 80 kHz) P + KP Series AC-DC Converters >100 Watt Rugged Environment Electrical Input Data General Conditions - TA = 25C, unless TC is specified. - Pin 18 connected to pin 14, Uo adjusted to Uo nom (option P); R input not connected. Table 2: Input data Input LKP Characteristics Ui U i nom Ii Input current Pi o P i inh Ri 2 3 typ max Unit 255 V AC 3 230 1.25 No-load input power Ui min...Ui max 7 10 Idle input power unit inhibited 2 3 Input resistance TC = 25C resistance 2 R NTC NTC Ci Input capacitance U i RFI Conducted input RFI U i abs min 187 Ui nom, Io nom 1 Radiated input RFI 1 Conditions Operating input voltage Io = 0...Io nom TC min...TC max Nominal input voltage Arms 480 W m 3200 4000 79.2 F -400 400 V DC -400 400 VP 52.8 EN 55022 Ui nom, I o nom Input voltage limits (without damage) 66 B B With double output modules, both outputs loaded with Io nom. Initial switch-on cycle. Subsequent switch-on/off cycles increase the inrush current peak value. AC frequency range 47...63 Hz. Input Fuse Inrush Current Limitation A fuse mounted inside the converter protects the module against severe defects. The modules of the versions -5, -6, -7 incorporate an NTC resistor in the input circuitry which - at initial turn on - reduces the peak inrush current value by a factor of 5...10 to protect connectors and switching devices from damage. Subsequent switch-on cycles within short periods will cause an increase of the peak inrush current value due to the warming-up of the NTC resistor. See also: E option. Table 3: Fuse Specification Module LKP 5000 1 1 Fuse type Fuse rating slow-blow SP T 4 A, 250 V Fuse size 5 x 20 mm Inrush Current Peak Value Input Under-/Overvoltage Lock-out If the input voltage remains below approx. 110 V AC or exceeds approx. 280 V AC an internally generated inhibit signal disables the output(s). When checking this function the absolute maximum input voltage rating U i abs should be considered! Between Ui min and the undervoltage lock-out level the output voltage may be below the value defined in table: Output data (see: Technical Information: Measuring and Testing). The inrush current peak value (initial switch-on cycle) can be determined by following calculation: Ui rms * 2 Iinr p = ---------------- (Rs ext + Ri + RNTC) 04001 Rs ext Iinr p Ri RNTC Ui rms Input Transient Protection A VDR together with the input fuse and a symmetrical input filter form an effective protection against high input transient voltages. MELCHER The Power Partners. Fig. 2 Equivalent circuit diagram for input impedance Edition 4/4.99 4/23 Ci Rugged Environment AC-DC Converters >100 Watt Input Inrush Current Characteristic Static Input current Characteristic I inr [A] li [Arms] 2 04054 100 KP Series 04056 1.5 1 Ui = 360 V Ui = 264 V 50 0.5 0 0 0.1 200 225 275 Ui [V AC] 250 Fig. 5 Input current versus input voltage at Io nom 1.0 t [ms] 0.5 175 Fig. 3 Theoretical input inrush current versus time at U i = 187 V * 2 (264 V) and 255 V * 2 (360 V), Rext = 0 Harmonic Currents The harmonic distortion is well below the limits specified in IEC/EN 61000-3-2, class D. Power Factor, Harmonics Power factor correction is achieved by controlling the input current waveform synchronously with the input voltage waveform. The power factor control is active under all operating conditions. I i [mA / W] 0.8 04055 0.7 0.6 Power Factor 1 04057 0.5 0.4 0.9 0.3 0.2 Ui = 255 V AC Ui = 187 V AC 0.8 0.1 Harm. 0 0.7 3 0.6 0 0.2 0.4 0.6 0.8 1 Io /Io nom The Power Partners. 7 9 11 13 Fig. 6 Harmonic currents at the input, IEC/EN 61000-3-2, class D. Ui = Ui nom, Io = Io nom. Fig. 4 Power factor versus output power at Ui 255 V AC and 187 V AC. MELCHER 5 Edition 4/4.99 5/23 KP Series AC-DC Converters >100 Watt Rugged Environment Electrical Output Data General Conditions - TA = 25C, unless TC is specified. - Pin 18 (i) connected to pin 14 (S-/Vo1-), Uo adjusted to Uo nom (option P), R input not connected. Table 4a: Output data double output modules Output (Outputs connected in Series) Characteristics Uo Output LKP 5660-6 48 V (2 x 24 V) Conditions voltage 2 min Ui nom, Io nom typ max LKP 5740-6 51.36 V (2 x 25.68 V) min 48.0 typ 51.36 Uo max Maximum output voltage for battery charging Overvoltage protection Io nom Output current 1 Ui min...Ui max TC min...TC max IoL Output current limit 4 Ui min...Ui max uo 3 4 5 6 7 82 82 5.2 4.5 A 15 mVpp 5.3 4.6 15 30 30 180 180 Static line regulation Ui min...Ui nom Ui nom...Ui max Io nom 20 20 DUo I Static load regulation Ui nom, Io = (0.1...1) Io nom 100 100 uo d 5 Dynamic load regulation Ui nom Io nom 1/2 Io nom IEC/EN 61204 aUo 2 V DUo U td 5 1 Output Low frequency Ui nom, Io nom voltage IEC/EN 61204 Switching freq. noise 3 BW = 20 MHz Total Voltage deviation Recovery time Unit 56.5 Uo P 7 max Temperature coefficient TC min...TC max of output voltage 6 0...I o nom mV 200 200 0.3 0.3 ms -2.6 -2.6 mV/K If the output voltages are increased above Uo nom through R-input control, option P setting, remote sensing or option T, the output currents should be reduced accordingly so that Po nom is not exceeded. Series connection for Uo nom = 48 V or 51.35 V, see: R-Function for different output configurations. Factory adjusted with open R-input. Shortest possible wiring for series connection at the connector. See: Typical Output Voltage Regulation of Single or Double Output Modules with Outputs 1 and 2 Connected in Series. See: Typical dynamic load regulation of Uo1 and Uo2 . Negative temperature coefficient (0...-3 mV/cell and K) available on request. Measured according to IEC/EN 61204 sub clause 3.10 with a probe acc. to annex A of the same standards. (See: Technical Information: Measuring and Testing.) MELCHER The Power Partners. Edition 4/4.99 6/23 Rugged Environment AC-DC Converters >100 Watt KP Series Table 4b: Output data double output modules Output (Outputs independently loaded) 1 Characteristics Conditions Output voltage 2 Uo LKP 5660-6 24 V/24 V Ui nom, Io nom Output 1 min typ max 23.86 LKP 5740-6 25.68 V/25.68 V Output 2 min typ max 24.14 23.64 Output 1 min typ max 24.36 25.53 Uo max Maximum output voltage for battery charging Uo P Overvoltage protection Io nom Output current 3 Ui min...Ui max TC min...TC max IoL Output current limit 4 Ui min...Ui max uo 8 3 4 5 6 7 8 26.06 28.25 28.25 Unit V 41 41 41 41 5.2 5.2 4.5 4.5 A mVpp 5.3 5.3 4.6 4.6 10 10 10 10 20 20 20 20 150 40 150 Ui min...Ui nom Ui nom...Ui max Io nom 10 D Uo I Static load regulation Ui nom, Io = (0.1...1) Io nom 5 100 uo d 6 Dynamic load regulation Ui nom Io nom 1/2 Io nom IEC/EN 61204 150 150 0.3 0.3 ms TC min...TC max 0...Io nom -2.6 -2.6 mV/K Voltage deviation Recovery time Temperature coefficient of output voltage 7 10 40 Static line regulation aUo 2 25.83 25.29 D Uo U td 6 1 Output Low frequency Ui nom, Io nom voltage IEC/EN 61204 Switching freq. noise BW = 20 MHz Total Output 2 min typ max 10 5 100 10 mV 5 Depending upon the desired output configuration the wiring should be made as shown in: R-Function for different output configurations. Same conditions for both outputs. Factory adjustment with open R-input. If the output voltages are increased above Uo nom via R-input control, option P setting, remote sensing or option T, the output currents should be reduced accordingly so that Po nom is not exceeded. See: Typical Output Voltage Regulation of Single or Double Output Modules with Outputs 1 and 2 Connected in Series. Condition for specified output. Other output loaded with constant current Io = Io nom . See fig.: Output voltage regulation of double output units. See: Typical dynamic load regulation of Uo1 and Uo2 . Negative temperature coefficient (0...-3 mV/cell and K) available on request. Measured according to IEC/EN 61204 sub clause 3.10 with a probe acc. to annex A of the same standards. (see: Technical Information: Measuring and Testing) MELCHER The Power Partners. Edition 4/4.99 7/23 KP Series AC-DC Converters >100 Watt Rugged Environment Thermal Considerations Parallel or Series Connection of Units If a converter is located in free, quasi-stationary air (convection cooling) at the indicated maximum ambient temperature TA max (see: table Temperature specifications) and is operated at its nominal input voltage and output power, the temperature measured at the Measuring point of case temperature TC (see: Mechanical Data) will approach the indicated value TC max after the warm-up phase. However, the relationship between TA and TC depends heavily on the conditions of operation and integration into a system. The thermal conditions are influenced by input voltage, output current, airflow and temperature of surrounding components and surfaces. TA max is therefore, contrary to TC max, an indicative value only. Units with equal nominal output voltage can be connected in parallel without any precautions using option T. Caution: The installer must ensure that under all operating conditions TC remains within the limits stated in the table: Temperature specifications. Notes: Sufficient forced cooling or an additional heat sink allows TA to be higher than 60C (e.g. 70C) if TC max is not exceeded. Io/Io nom convection cooling - Parallel connection of double output units should always include both, main and second output to maintain good regulation of both outputs. - Not more than 3 units should be connected in parallel. - Series connection of second outputs without involving their main outputs should be avoided as regulation may be poor. - The maximum output current is limited by the output with the lowest current limitation if several outputs are connected in series. Efficiency versus Load 05156 86 TC max -6 Note: 88 -5 -6 -7 -5 Main and second outputs can be connected in series with any other (similar) output. Efficiency 90 forced cooling 05143 1.00 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 With option T (current sharing), all units share the current approximately equally. 84 -7 82 80 U i = 187 V AC U i = 230 V AC 78 TA min 50 60 70 80 90 100 TA [C] Fig. 7 Output current derating versus temperature for -5, -6 and -7 units. 76 74 72 70 1 0 Thermal Protection A temperature sensor generates an internal inhibit signal which disables the outputs if the case temperature exceeds TC max. The outputs are automatically re-enabled if the temperature drops below this limit. Output Protection Each output is protected against overvoltage which could occur due to a failure of the control circuit by means of a voltage suppressor diode which, under worst case conditions, may become a short circuit. The suppressor diodes are not designed to withstand externally applied overvoltages. Overload at any of the two outputs will cause a shut-down of both outputs. A red LED indicates the overload condition. 2 4 3 Io /Io nom Fig. 8 Efficiency versus load at Ui 230 V AC and 187 V AC Switching Frequency versus Load Frequency [kHz] 80 05157 70 60 50 40 30 20 10 0 0 0.2 0.4 0.6 0.8 1 1.2 load [Io/Io nom] Fig. 9 Switching frequency versus load. (The boost converter at the input stage has a fixed frequency of 100 kHz) MELCHER The Power Partners. Edition 4/4.99 8/23 Rugged Environment AC-DC Converters >100 Watt Output Voltage Regulation KP Series Dynamic Load Regulation Output 1 is under normal conditions regulated to Uo1 nom, independent of the output currents. Uo2 is dependent upon the load distribution. If both outputs are loaded with more than 10% of Io nom, the deviation of Uo2 remains within 5% of the value of Uo1. The following figure shows the regulation with varying load distribution. If Io1 = Io2 or the two outputs are connected in series, the deviation of Uo2 remains within 1% of the value of Uo1 provided that a total load of more than 10% of Io nom is applied. If both outputs of a single LKP 5000 module are connected in parallel the paralleled output is fully regulated. No precautions are necessary in using the R-input and the test sockets. Uo1d Ur Uo1d td t Uo2 Uo2d t Io1/Io1 nom Io2/Io2 nom 1 05004 <10 s <10 s 0 Io1 = 100% Io1 = 50% Io1 = 10% 26 Ur td 0.5 [V] Uo2 27 05005 Uo1 t Fig. 12 Typical dynamic load regulation of Uo1 and Uo2. 25 24 Hold-up Time versus Output Power 23 time [ms] 100 22 05159 90 21 0 0.2 0.4 0.6 0.8 Io2 /Io2 nom 1 Fig. 10 LK 5660: DUo2 (typ.) versus Io2 with different Io1 80 70 60 50 Output Voltage Regulation Connected in Series Uo 40 30 Uo nom 05158 0.98 20 10 0 0 0.2 0.4 0.6 Fig. 13 Hold-up time t h versus output power 0.5 Io IoL 0 0.5 1.0 Io Io nom Fig. 11 Uo versus Io MELCHER The Power Partners. Edition 4/4.99 9/23 0.8 1 Io /Io nom KP Series AC-DC Converters >100 Watt Rugged Environment Auxiliary Functions i Inhibit for Remote On and Off Note: With open i input: Output is disabled (Uo = off). The outputs of the module may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the inhibit input i and the negative pin of output 1 (Vo1-). In systems with several units, this feature can be used, for example, to control the activation sequence of the converters. If the inhibit function is not required, connect the inhibit pin 18 to pin 14 to enable the outputs (active low logic, fail safe). For output response refer to: Hold-up Time and Output Response. 06031 Vo+ Vi+ i Inhibit 1 t 0 Fig. 16 Output response as a function of inhibit control The LKP 5740-6R, LKP 5741-5R, LKP 5742-7R are intended for lead acid battery charger applications. For an optimum battery charging and life expectancy of the battery an external temperature sensor may be connected to the R-input. The sensor is mounted as close as possible to the battery pole and adjusts the output voltage of the LKP unit according to the temperature of the battery (which is related to the load of the battery and the ambient temperature). Vo- Depending on the cell voltage and the temperature coefficient of the battery, different sensor types are available. Uinh = 2.4 V Uinh = 0.8 V t tf tr Battery Charging/Temperature Sensor Fig. 14 Definition of Uinh and Iinh. Iinh [mA] 0.1 0 I inh U inh Vi- 06001 Uo /Uo nom 1 06032 2.0 1.6 For more information please ask Melcher. Cell voltage [V] 2.40 1.2 0.8 Uo = on 0.4 06123 Uo max 2.35 Uo = off 0 2.30 -0.4 2.25 Uz = 2.27 V, -3.5 mV/K -0.8 -50 -30 -10 0 10 30 50 Uinh [V] 2.20 Uz = 2.23 V, -3.5 mV/K Fig. 15 Typical inhibit current I inh versus inhibit voltage U inh 2.15 Uo nom Table 5: Inhibit characteristics 2.10 0 Characteristic Conditions min Uinh Inhibit Uo = on voltage Uo = off Ui min...Ui max -50 0.8 2.4 50 Iinh Inhibit current Uinh = 0 tr Rise time tf Fall time MELCHER The Power Partners. typ max Unit -400 30 V 5 10 15 20 25 30 35 40 45 [C] 50 Fig. 17 Dependance of output voltage vs. temperature for defined temperature coefficient. A ms depending on Io Edition 4/4.99 10/23 Rugged Environment AC-DC Converters >100 Watt KP Series Programmable Output Voltage (R-Function) As a standard feature, the modules offer an adjustable output voltage, identified by letter R in the type designation. The control input R (pin 16) accepts either a control voltage Uext or a resistor Rext to adjust the desired output voltage. When not connected, the control input automatically sets the output voltage to Uo nom. a) Adjustment by means of an external control voltage Uext between pin 16 (R) and pin 14: The control voltage range is 0...2.75 V DC and allows an output voltage adjustment in the range of approximately 0...110% Uo nom. Uo Uext = ------ * 2.5 V (approximate formula) Uo nom b) Adjustment by means of an external resistor: Depending upon the value of the required output voltage the resistor shall be connected either: Between pin 16 and pin 14 (Uo < Uo nom) to achieve an output voltage adjustment range of approximately 0...100% Uo nom or: Between pin 16 and pin 12 (Uo > Uo nom) to achieve an output voltage adjustment range of approximately 100...110% Uo nom. Table 6a: Rext for Uo < Uo nom; approximate values (Ui nom, Io nom, series E 96 resistors); R'ext = * Remarks: - The R-Function excludes option P (output voltage adjustment by potentiometer). - If the output voltages are increased above Uo nom via Rinput control, option P setting, remote sensing or option T, the output current(s) should be reduced accordingly so that Po nom is not exceeded. - The R-input (as well as option P) is related to the main output. - With double output units the second output follows the value of the controlled main output. Resistor values as indicated for the single output units should be used. - For correct output voltage adjustment of double output units the external wiring of the outputs should be according to: R-function for different output configurations depending upon the desired output configuration. - In case of parallel connection the output voltages should be individually set within a tolerance of 1...2%. Warning: - Uext shall never exceed 2.75 V DC. - The value of R'ext shall never be less than the lowest value as indicated in table R'ext (for U0 > U0 nom) to avoid damage to the unit! Table 6b: R'ext for Uo > Uo nom; approximate values (Ui nom, Io nom, series E 96 resistors); Rext = * Uo nom = 24 V Uo [V] 1 4 6 8 10 12 14 16 18 20 22 1 Uo nom = 24 V Uo [V] 1 Rext [k] 8 12 16 20 24 28 32 36 40 44 0.806 1.33 2.00 2.87 4.02 5.62 8.06 12.1 20.0 44.2 24.25 24.5 24.75 25.0 25.25 25.5 25.75 26.0 26.25 26.4 R'ext [k] 48.5 49.0 49.5 50.0 50.5 51.0 51.5 52.0 52.5 52.8 3320 1690 1130 845 698 590 511 442 402 383 First column: single output units or double output units with separated outputs, second column: outputs in series connection MELCHER The Power Partners. Edition 4/4.99 11/23 KP Series AC-DC Converters >100 Watt Rugged Environment R-Function for different output configurations 06118 06117 + Vo2+ 4 6 Vo2+ 6 Vo2- 8 Vo2- 8 Vo2- 10 Vo2- 10 Vo1+ 12 Vo1- 14 R 16 Vo2+ 4 Vo2+ Vo1+ Vo1- 12 - 14 Vo2+ 16 Vo2- Vo2- 1 Uo2 12 Vo1- 14 R 16 - Uo1 10 Vo1+ 1 -24 V 8 Fig. 18b LKP 5000 with H15 connector. R-input for output voltage control. Wiring for output voltage 24 V with main and second output connected in parallel. Vo2+ 4 Vo2+ 6 Vo2- 8 Vo2- 10 + Vo1+ 12 Vo1- 14 R 16 Vo2+ 6 Vo2- 8 Vo2- 10 + 2 Vo1+ 12 Vo1- 14 Uo2 24 V Uo1 + 1 1 R'ext 1 A ceramic multilayer capacitor connected across the load reduces ripple and spikes. Shortest possible wiring for series connection at the female connector - + Uo1 24 V 1 - Rext R +24 V Fig. 18d LKP 5000 with H15 connector. R-input for output voltage control. Wiring of main and second output for two output voltages Uo1 and Uo2: +24 V and +48 V. 1 4 Uo2 Rext 06121 Vo2+ + 0V R'ext Fig. 18c LKP 5000 with H15 connector. R-input for output voltage control. Wiring of main and second output for two symmetrical output voltages Uo1 and Uo2: 24 V. 06120 +48 V 2 +24 V Rext R'ext 06119 0V 4 6 - Rext R'ext Fig. 18a LKP 5000 with H15 connector. R-input for output voltage control. Wiring for output voltage 48 V with main and second output connected in series. Vo2+ 1 Uo1 24 V 2 Rext R 1 Uo1 48 V + 16 Fig. 18e LKP 5000 with H15 connector. R-input for output voltage control. Wiring of main and second output for two output voltages Uo1 and Uo2: 24 V/24 V, the outputs are galvanically isolated. MELCHER The Power Partners. Remarks: Double output units fitted with H15 connectors have the output pins of the second output, pins 4/6 and 8/10, internally paralleled. R'ext It is recommended that pins 4/6 and 8/10 be directly paralleled at the female connector as well to reduce the voltage drop across the connector. Please note: Uo2 varies depending upon its own load and the load on output 1. Edition 4/4.99 12/23 Rugged Environment AC-DC Converters >100 Watt KP Series Display Status of LEDs 06002 Uo1 > 0.95...0.98Uo1 adj OK i Io L Ui Ui uv Ui min Ui max Ui ov Uo1 > 0.95...0.98Uo1 adj Fig. 19 LEDs "OK", "i" and "Io L"status versus input voltage Conditions: Io Io nom, TC TC max, Uinh 0.8 V Ui uv = undervoltage lock-out, Ui ov = overvoltage lock-out Ui abs Uo1 < 0.95...0.98Uo1 adj OK Io L Io nom Io LEDs "OK" and "Io L"status versus output current Conditions: Ui min...Ui max, TC TC max, Uinh 0.8 V TC LED "i"versus case temperature Conditions: Ui min...Ui max, Io Io nom, Uinh 0.8 V Ui inh LED "i"versus Uinh Conditions: Ui min...Ui max, Io Io nom, TC TC max IoL i TC max TPTC threshold Uinh threshold i -50 V LED off +0.8 V +2.4 V LED Status undefined +50 V LED on Test Sockets (Main output only ) Test sockets for measuring the output voltage Uo1 are located at the front of the module. The positive test socket is protected by a series resistor (see: Functional Description, block diagrams). The voltage measured at the test sockets is approximately 30 mV lower than the value measured at the output terminals. In case of double output units externally connected in series for Uo = 51 V or 48 V the monitored output voltage is 25,5 V or 24 V respectively. MELCHER The Power Partners. Edition 4/4.99 13/23 KP Series AC-DC Converters >100 Watt Rugged Environment Electromagnetic Compatibility (EMC) A metal oxide VDR together with an input fuse and an input filter form an effective protection against high input transient voltages which typically occur in most installations. The KP series has been successfully tested to the following specifications: Electromagnetic Immunity Table 7: Immunity type tests Phenomenon Standard 1 Voltage surge IEC 60571-1 Supply related surge RIA 12 Direct transient Level Coupling mode 2 Value applied Waveform Source imped. Test procedure i/c, +i/-i 800 Vp 100 s 100 yes 4 1500 Vp 50 s 3000 Vp 5 s 1 pos. and 1 neg. voltage surge per coupling mode 4000 Vp 1 s 7000 Vp 100 ns B +i/-i 1.5 * Ubatt 0.1/1/0.1 s 0.2 1 positive surge yes 4 C +i/c, -i/c 960 Vp 10/100 s 5 yes 4 D 1800 Vp 5/50 s 5 pos. and 5 neg. impulses E 3600 Vp 0.5/5 s F 4800 Vp 0.1/1 s Electrostatic discharge (to case) 8400 Vp 0.05/0.1 s 5/50 s J 3600 Vp 0.5/5 s K 4800 Vp 0.1/1 s L 8400 Vp 0.05/0.1 s contact discharge 8000 Vp 1/50 ns 330 A 15000 Vp 10 positive and 10 negative discharges yes air discharge antenna 10 V/m AM 80% 1 kHz n.a. 26...1000 MHz yes 4 900 5 MHz yes 4 H IEC/EN 61000-4-2 4 Electromagnetic IEC/EN field 61000-4-3 3 +o/c, -o/c Electromagnetic ENV 50204 field, pulse modulated 1 2 3 4 Electrical fast transient/burst IEC/EN 61000-4-4 Surge IEC/EN 61000-4-5 Conducted disturbances IEC/EN 61000-4-6 Voltage dips, short interruptions and voltage variations IEC/EN 61000-4-11 (table of the standard) 100 1800 Vp G Indirect coupled transient 50% duty cycle, 200 Hz repetition frequency 4 50 1 min positive 1 min negative transients per coupling mode yes A 4000 Vp bursts of 5/50 ns 2.5/5 kHz over 15 ms; burst period: 300 ms 2000 Vp 1.2/50 s 12 5 pos. and 5 neg. surges per yes B 0.15...80 MHz yes 4 capacitive, o/c 2000 Vp i/c, +i/-i direct 3 i/c 4 +i/-i 3 i, o, signal wires 10 Vrms (140 dBV) AM 80% 1 kHz 150 40% +i/-i 230 92 230 V 2/1/2 s n.a. 0% 2 230 0 230 V Related and previous standards are referenced in: Technical Information: Standards. i = input, o = output, c = case. A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible. Test in progress, please consult factory. Note: Previous standards are referenced in: Technical Information: Standards. MELCHER The Power Partners. In Peroper. form. 3 Edition 4/4.99 14/23 B B Rugged Environment AC-DC Converters >100 Watt [dBV] 90 07063 KP Series [dBV/m] 50 80 07038 A A 70 40 B B 60 30 50 40 20 30 20 10 10 Fig. 20 Typical disturbance voltage (quasi-peak) at the input according to CISPR 11/22 and EN 55011/22, measured at Ui nom and Io nom. 500 200 100 50 1000 [MHz] 0 30 20 30 10 5 2 1 0.5 0.1 0.05 MHz 0.02 0.01 0 Fig. 21 Typical radiated electromagnetic field strength (quasi-peak) according to CISPR 11/22 and EN 55011/22, normalized to a distance of 10 m, measured at Ui nom and Io nom. Immunity to Environmental Conditions Table 8: Mechanical stress Test method Standard Test conditions Ca Damp heat steady state IEC/DIN IEC 60068-2-3 MIL-STD-810D section 507.2 Temperature: Relative humidity: Duration: 40 2 C 93 +2/-3 % 56 days Unit not operating Status Ea Shock (half-sinusoidal) IEC/EN/DIN EN 60068-2-27 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 100 gn = 981 m/s2 6 ms 18 (3 each direction) Unit operating Eb Bump (half-sinusoidal) IEC/EN/DIN EN 60068-2-29 MIL-STD-810D section 516.3 Acceleration amplitude: Bump duration: Number of bumps: 40 gn = 392 m/s2 6 ms 6000 (1000 each direction) Unit operating Fc Vibration (sinusoidal) IEC/EN/DIN EN 60068-2-6 MIL-STD-810D section 514.3 Acceleration amplitude: Unit operating Frequency (1 Oct/min): Test duration: 0.35 mm (10...60 Hz) 5 gn = 49 m/s2 (60...2000 Hz) 10...2000 Hz 7.5 h (2.5 h each axis) Fda Random vibration wide band Reproducibility high IEC 60068-2-35 DIN 40046 part 23 Acceleration spectral density: Frequency band: Acceleration magnitude: Test duration: 0.05 g n2 /Hz 20...500 Hz 4.9 gn rms 3 h (1 h each axis) Unit operating Kb Salt mist, cyclic (sodium chloride NaCl solution) IEC/EN/DIN IEC 60068-2-52 Concentration: Duration: Storage: Storage duration: Number of cycles: 5% (30C) 2 h per cycle 40C, 93% rel. humidity 22 h per cycle 3 Unit not operating Table 9: Temperature specifications, values given are for an air pressure of 800...1200 hPa (800...1200 mbar) Temperature -5 -6 -7 Characteristics Conditions min max min max min max Unit TA Ambient temperature -25 50 -25 60 -25 71 C TC Case temperature U i min...U i max I o = 0...I o nom -25 85 -25 90 -25 95 TS Storage temperature Not operational -40 100 -40 100 -40 100 MELCHER The Power Partners. Edition 4/4.99 15/23 AC-DC Converters >100 Watt Rugged Environment 7 TE 6.5 Measuring point of case temperature TC 29.9 19.7 Test jacks (+/-) Option P (Uo) Option D (Uto) Option D (Uti) 9.5 4.5 LED i (red) 51.5 89 111 (3U) 4.5 Gravitational axis 159 7.0 10.3 12.1 20.3 Dimensions in mm. Tolerances 0.3 mm unless otherwise indicated. 9 TE 3.27 30.3 Mechanical Data 09002 KP Series LED OK (green) LED IoL (red) = O 3.5 = O 4.1 50 42 171.93 (DIN 41494) 80 Front plate d Back plate 168.5 0.5 11.8 Main face 25.9 European Projection Note: - d 15 mm, recommended minimum distance to next part to ensure proper air circulation at full output power. 7 TE 3.27 5 50 5 - free air locations: the module should be mounted with fins in vertical position to achieve a maximum air flow through the heat sink. 158 4 TE 09003 Fig. 22 Case K02 with heatsink, case aluminium, black finish and self cooling, weight: approx. 1.55 kg 101 111 (3U) M4 Measuring point of case temperature TC 17.3 47.2 133.4 168 0.5 171.93 (DIN 41494) Fig. 23 Case K02 with option B1 (cooling plate), case aluminium, black finish and self cooling, weight: Approx. 1.15 kg MELCHER The Power Partners. Edition 4/4.99 16/23 5 Rugged Environment AC-DC Converters >100 Watt KP Series Safety and Installation Instructions Connector Pin Allocation Installation Instructions The connector pin allocation table defines the electrical potentials and the physical pin positions on the H15 connector. Pin no. 24, the protective earth pin present on all LKP AC-DC converters is leading, ensuring that it makes contact with the female connector first. The KP series AC-DC converters are components, intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. Installation must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings and segregation requirements of the end-use application. Table 10: H15 connector pin allocation Pin No. Connector type H15 4 Vo2+ Output 2 6 Vo2+ Output 2 8 Vo2- Output 2 10 Vo2- Output 2 12 Vo1+ Output 1 14 Vo1- Output 1 16 R1 Control of U o1 18 i Inhibit 20 D Save data 22 T Current sharing 24 2 1 2 Connection to the system shall be made via the female connector H15 (see: Accessories). Other installation methods may not meet the safety requirements. LKP 5000 The AC-DC converters are provided with pin no. 24 ( ), which is reliably connected with their case. For safety reasons it is essential to connect this pin with the protective earth of the supply system. An input fuse is built-in in the connection from pins no. 30 and 32 (P~) of the unit. Since this fuse is designed to protect the unit in case of an overcurrent and does not necessarily cover all customer needs, an external fuse suitable for the application and in compliance with the local requirements might be necessary in the wiring to one or both input potentials, pins nos. 26 and 28 and/or nos. 30 and 32. Important: Whenever the inhibit function is not in use, pin no. 18 (i) should be connected to pin no. 14 (Vo1-) to enable the output(s). Protective earth 26 N Neutral 28 N Neutral 30 P Phase 32 P Phase Do not open the modules, or guarantee will be invalidated. Due to high current values, all LKP units provide two internally parallel connected contacts for certain paths (pins 4/6, 8/10, 26/28 and 30/32, respectively). It is recommended to connect load and supply to both female connector pins of each path in order to keep the voltage drop across the connector pins to an absolute minimum and to not overstress the connector contacts if currents are higher than approx. 8 A. The connector contacts are rated 8 A over the whole temperature range. Feature R excludes option P and vice versa Leading pin (pregrounding) 32 10008 4 Make sure there is sufficient air flow available for convection cooling. This should be verified by measuring the case temperature when the unit is installed and operated in the end-use application. The maximum specified case temperature TC max shall not be exceeded. See also: Thermal Considerations. Fixtures for connector retension clips V (see Accessory Products) Fig. 24 View of module's male connectors Protection Degree Condition: Female connector fitted to the unit. IP 30: All units except those with option P, and except those with option D with potentiometer. IP 20: All units fitted with option P, or with option D with potentiometer. If the end-product is to be UL certified, the temperature of the main isolation transformer should be evaluated as part of the end-product investigation. Check for hazardous voltages before altering any connections. The output provides a hazardous energy level according to IEC/EN 60950. Ensure that a unit failure (e.g. by an internal short-circuit) does not result in a hazardous condition. See also: Safety of operator accessible output circuit. Cleaning Agents In order to avoid possible damage, any penetration of cleaning fluids is to be prevented, since the power supplies are not hermetically sealed. MELCHER The Power Partners. Edition 4/4.99 17/23 KP Series AC-DC Converters >100 Watt Rugged Environment Standards and Approvals All AC-DC converters correspond to class I equipment. They are UL recognized according to UL 1950, UL recognized for Canada to CAN/CSA C22.2 No. 950-95 and LGA approved to IEC/EN 60950 standards. The units have been evaluated for: * Building in * Basic insulation between input and case, based on 250 V AC and 400 V DC * Double or reinforced insulation between input and output, based on 250 V AC and 400 V DC * Operational insulation between output and case. * Operational insulation between output and output * The use in a pollution degree 2 environment * Connecting the input to a primary or secondary circuit which is subject to a maximum transient rating of 2500 V (overvoltage category III based on a 110 V primary circuit, overvoltage category II based on a 230 V primary circuit). The AC-DC converters are subject to manufacturing surveillance in accordance with the above mentioned UL, CSA, EN and ISO 9001 standards. Isolation The electric strength test is performed as factory test in accordance with IEC/EN 60950 and UL 1950 and should not be repeated in the field. Melcher will not honour any guarantee claims resulting from electric strength field tests. Important: Testing by applying AC voltages will result in high and dangerous leakage currents flowing through the Y-capacitors (see fig.: Block diagram). Table 11: Isolation Characteristic Electric strength test voltage Input to case Input to output 1.5 3.0 - - kVrms 2.1 4.2 - - kV DC Actual factory test 1 s 2.8 5.6 1 1.4 0.14 AC test voltage equivalent to actual factory test 2.0 4.0 1 1.0 0.1 kVrms >300 >300 >300 >100 2 M Required according to IEC/EN 60950 Insulation resistance at 500 V DC Output to Output to case output Unit 1 2 In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage. Tested at 100 V DC. For creepage distances and clearances refer to Technical Information: Safety. Leakage Currents in AC-DC operation 1500 MI 10061 Leakage currents flow due to internal leakage capacitance and RFI suppression Y-capacitors. The current values are proportional to the mains voltage and nearly proportional to the mains frequency and are specified at an input voltage of 254 V (50 Hz) where phase, neutral and protective earth are correctly connected as required for class I equipment. 500 Under test conditions the leakage current flows through a measuring instrument (MI) as described in fig.: Measuring instrument for earth leakage current tests, which takes into account impedance and sensitivity of a person touching unearthed accessible parts. The current value is calculated by dividing the measured voltage by 500 . If inputs of Kunits are connected in parallel, their individual leakage currents are added. 10062 P P Vo+ N Vo- N 10 k 220 nF MI for earth leakage current 22 nF V Fig. 26 Test set-up Fig. 25 Measuring instrument (MI) for earth leaking current tests according to IEC/EN 60950. Table 12: Leakage currents Characteristic Maximum earth leakage current Class I LKP 5000 Unit Permissible according to IEC/EN 60950 3.5 mA Specified value at 254 V, 50 Hz 0.82 MELCHER The Power Partners. Edition 4/4.99 18/23 Rugged Environment AC-DC Converters >100 Watt KP Series Safety of operator accessible output circuit If the output circuit of an AC-DC converter is operator accessible, it shall be an SELV circuit according to the IEC/EN 60950 related safety standards. The following table shows a possible installation configuration, compliance with which causes the output circuit of an KP series AC-DC converter to be an SELV circuit according to IEC/EN 60950 up to a configured output voltage (sum of nominal voltages if in series or +/- configuration) of 36 V. However, it is the sole responsibility of the installer to assure the compliance with the relevant and applicable safety regulations. More information is given in: Technical Information: Safety. Table 13: Safety concept leading to an SELV output circuit 1 Conditions AC-DC converter Installation Result Nominal voltage Grade of insulation between input and output provided by the AC-DC converter Measures to achieve the resulting safety status of the output circuit Safety status of the AC-DC converter output circuit Mains 250 V AC Double or reinforced Earthed case 1 and installation according to the applicable standards SELV circuit The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950. Mains ~ ~ Earth connection MELCHER The Power Partners. 10021 Fuse Fuse + AC-DC converter SELV - Fig. 27 Schematic safety concept. Use fuses and earth connection as per :Installation Instructions and table: Safety concept leading to an SELV output circuit. Edition 4/4.99 19/23 KP Series AC-DC Converters >100 Watt Rugged Environment Description of Options Table 14: Survey of options Option E P 1, 2 D 1 2 Function of Option Characteristics Electronic inrush current limitation circuitry Active inrush current limitation Potentiometer for fine adjustment of output voltage Adjustment range +10/-60% of Uo nom excludes R input Input and/or output undervoltage monitoring circuitry Safe data signal output (Versions D0...DD) T Current sharing Interconnect T-pins if paralleling outputs (3 units max.) B1 Cooling plate Replaces standard heat sink, allowing direct chassis-mounting Option R excludes option P and vice versa. Option P not available for LKP 5740-6R Option T Current Sharing E Inrush Current Limitation This option ensures that the output currents are approximately shared between all paralleled modules and increases system reliability. To use this facility, simply interconnect the T pins of all modules. The load leads should have equal length and cross section to ensure equal voltage drops. Not more than 3 units should be connected in parallel. If output voltage adjustment is requested we strongly recommend to use the R-input instead of option P, as with option P the required setting accuracy is difficult to achieve. The output voltages must be individually set prior to paralleling to within a tolerance of 1...2% or the R pins should be connected together. The converters may be supplemented by an electronic circuit (option E, replacing the standard built-in NTC) to achieve an enhanced inrush current limiting function. Characteristics Ui = 230 V AC - 21.7 A Inrush current duration 35 50 ms Control FET Rectifier 11037 RS Converter Power bus + - 11001 Peak inrush current t inr Vo1+ Ci RI Fig. 29 Option E block diagram Vo1- Load Vo2+ Precaution: Subsequent switch-on cycles at start-up are limited to max. 10 cycles during the first 20 seconds (cold unit) and at continuing on/off (TC = 95C) max. 1 cycle every 8 sec. Vo2- Module max PFC - Control T Unit typ Iinr p Vo2- Module LKP Input Filter Vo2+ Table 15: Inrush current characteristics with option E T Vo1+ Vo1- Ii [A] max. 5 units in parallel connection 11002 Capacitor Ci fully charged 20 Fig. 28 Paralleling of double output units using option T with Power Bus 15 10 Normal operation (FET fully conducting) Option P Potentiometer The potentiometer provides an output voltage adjustment range of +10/-60% of Uo nom and is accessible through a hole in the front cover. This feature enables compensation for voltage drops across the connector and wiring. Option P is not recommended if units are connected in parallel. Option P excludes the R-function. With double output units both outputs are affected by the potentiometer setting (doubling the voltage setting if the outputs are in series). If the output voltages are increased above Uo nom via R-input control, option P setting, remote sensing or option T, the output current(s) should be reduced accordingly so that Po nom is not exceeded. MELCHER The Power Partners. 5 0 -5 -10 t inr 0 10 20 30 t [ms] 40 50 60 70 80 Fig. 30 Inrush current with option E, Ui = 230 V AC, Po = Po nom Edition 4/4.99 20/23 Rugged Environment AC-DC Converters >100 Watt KP Series Option D Undervoltage Monitor The input and/or output undervoltage monitoring circuit operates independently of the built-in input undervoltage lockout circuit. A logic "low" (JFET output) or "high" signal (NPN output) is generated at pin 20 as soon as one of the monitored voltages drops below the preselected threshold level Ut. The return for this signal is Vo1-. The D output recovers when the monitored voltage(s) exceed(s) Ut + Uh. The threshold level U ti is adjusted in the factory. The threshold level U to is either adjusted by a potentiometer, accessible through a hole in the front cover, or factory adjusted to a fixed value specified by the customer. Option D exists in various versions D0...DD as shown in the following table. Table 16: Undervoltage monitoring functions Output type JFET NPN D1 D5 2 3 4 no yes Minimum adjustment range of threshold level U t U ti U to 3.5...40 V 1 4 Typical hysteresis Uho [% of Ut] for U t min...U t max U ho 2.5...0.6 D2 D6 yes no 355 V DC D3 D7 yes yes 355 V DC 4 (0.95...0.985 Uo1) 2 D4 D8 no yes - (0.95...0.985 Uo1) 2 D0 D9 no yes - 3.5...40 V 3 2.5...0.6 yes yes 355 V DC 4 3.5...40 V 3 2.5...0.6 yes yes 355 V DC 4 3.5...40 V 1 2.5...0.6 DD 1 Monitoring Ui Uo1 - "0" "0" Threshold level adjustable by potentiometer Fixed value. Tracking if Uo1 adjusted via R-input, option P or sense lines. The threshold level permanently adjusted according to customer specification 2% at 25C. Any value within the specified range is basically possible but causes a special type designation in addition to the standard option designations (D0/D9)! Option D monitors the boost regulator output voltage. The trigger level is adjusted in the factory to 355 V DC. 11006 JFET output (D0...D4): Vo1+ Connector pin D is internally connected via the drainsource path of a JFET (self-conducting type) to the negative potential of output 1. UD 0.4 V (logic low) corresponds to a monitored voltage level (Ui and/or Uo1) <U t. The current ID through the JFET should not exceed 2.5 mA. The JFET is protected by a 0.5 W Zener diode of 8.2 V against external overvoltages. U i , U o1 status D output, U D U i or U o1 < U t low, L, U D 0.4 V at I D = 2.5 mA U i and U o1 > U t + U h high, H, I D 25 A at U D = 5.25 V Rp Input ID D UD Vo1- Fig. 31 Option D0...D4: JFET output, ID 2.5 mA 11007 NPN output (D5...DD): Vo1+ Connector pin D is internally connected via the collectoremitter path of a NPN transistor to the negative potential of output 1. UD < 0.4 V (logic low) corresponds to a monitored voltage level (U i and/or Uo1) > U t + U h. The current ID through the open collector should not exceed 20 mA. The NPN output is not protected against external overvoltages. UD should not exceed 40 V. U i , U o1 status D output, U D U i or U o1 < U t high, H, I D 25 A at U D = 40 V U i and U o1 > U t + U h low, L, U D 0.4 V at I D = 20 mA Rp Input ID D UD Vo1- Fig. 32 Option D5...DD: NPN output, Uo1 40 V, ID 20 mA Table 17: D-output logic signals U i < U t resp. U o < U t U i > U t + U h resp. U o > U t Configuration D1, D2, D3, D4, D0 low high JFET D5, D6, D7, D8, D9, DD high low NPN Version of D MELCHER The Power Partners. Edition 4/4.99 21/23 KP Series AC-DC Converters >100 Watt Rugged Environment D-signal with respect to input and output voltage versus time: Input voltage monitoring NPN UD UD high 11044 3 3 3 3 UD low t 0 ID ID high ID low 0 t JFET UD UD high UD low 0 t th1 tlow min4 tlow min4 Uo1 Uo1 nom 1 0.95 tlow min4 thigh min th1 t 0 Uci [V DC] 358 355 t 0 Input voltage failure Input voltage sag Switch-on cycle Output voltage monitoring NPN UD UD high Switch-on cycle and subsequent input voltage failure 2 UD low t 0 ID ID high ID low 0 t JFET UD UD high UD low 0 t tlow min4 Uo1 Uo1 nom Uto +Uho Uto 1 2 3 t 0 4 Output voltage failure Fig. 33 Relationship between Uci, Uo1, UD, Uo1/Uo nom versus time MELCHER The Power Partners. Edition 4/4.99 22/23 Hold-up time see section: Electrical Input Data. With output voltage monitoring, hold-up time th = 0. The signal will remain high if the D output is connected to an external source. t low min = 100...170 ms, typically 130 ms. Rugged Environment AC-DC Converters >100 Watt B1 Cooling Plate (see: Mechanical Data) Where a cooling surface is available, we recommend the use of a cooling plate (option B1) instead of the standard heatsink. The mounting system should ensure sufficient cooling capacity to guarantee that the maximum case temperature TC max is not exceeded. The cooling capacity is calculated by: (100% - ) PLoss = ---------- (Uo * Io) Efficiency h see: Type survey. Accessories A variety of electrical and mechanical accessories are available including: - Front panels for 19" rack mounting, Schroff and Intermas systems. - Mating H15 connectors with screw, solder, fast-on or press-fit terminals. - Connector retention facilities. - Code key system for connector coding. - Chassis mounting plates for mounting the 19" cassette to a chassis/wall where only frontal access is given. - Universal mounting bracket for DIN-rail or chassis mounting. For more detailed information please refer to: Accessory Products. Front panels H15 female connector, Code key system Mounting plate, Connector retention clips Universal mounting bracket for DIN-rail mounting. MELCHER The Power Partners. Edition 4/4.99 23/23 KP Series