M2705 ENERCON | Alldatasheet
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Page 1 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in M2705 SERIES SINGLE-OUTPUTS, 1.5KW AC TO DC POWER SUPPLY The M2705 is a baseplate-mount, conduction-cooled, 3-phase AC/DC power supply designed for rugged airborne applications requiring a lagging power factor presented to the 115Vac, 3-phase bus. The unit can tolerate the normal transients of MIL-STD-704F as well as ride through the power interrupt (50mS) required in MIL- STD-704. This unit is sealed to protect against fluids, with a breather valve for condensation exhaust. M2705 is based upon field proven M2703, with a front end that provides a lagging power factor and additional hold circuity.
Page 2 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in THE MAIN FEATURES OF THE M2705 ARE: ➢ AC/DC POWER SUPPLY Up to 1.5kW ➢ 115VAC/400Hz 3 phase input ➢ Lagging Power Factor ➢ 270V/1.5kW Output ➢ Holdup Output: 50mS @ 1500W (75J) ➢ Full galvanic isolation between Input, Chassis and Outputs ➢ EMI Filter Included ➢ High efficiency ➢ Fixed switching frequency ➢ Logic Inhibit ➢ Limited Inrush Current ➢ Indefinite short circuit protection with auto-recovery ➢ Over temperature shutdown with auto-recovery
Page 3 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in SPECIFICATIONS: AC Input Voltage Range 103 to 125 VAC/ 400 Hz 3-Phase Power Factor See page 5 Isolation Input to Output: 500 VDC Input to Case: 500 VDC Input Transient Protection Rides through transients IAW MIL-STD-704F (180V/ 0.010 sec and 80V/ 0.010 sec) DC Output Rating 270V/1.5kW Voltage Regulation Less than ±1% Ripple ≤300 mVp-p, typical (max. 1%) Isolation Output to Case: 500 VDC Current Limit & Overload Continuous protection for unlimited time Efficiency ≥ 87% Temperature protection Shutdown, baseplate temperature exceeds 105±5 °C. Output Hold UP 50mS @ 1500W (75J) Control & Indication ON/OFF Input The INHIBIT signal is used to turn the power supply ON and OFF. The internal pullup voltage is to 3.3V and the pull-down current that required to turn off the unit is typical 3mA Table 1 – Inhibit Functionality Inhibit logic 'ON' V > 2.4V – P.S 'ON' or Inhibit = 'OPEN' – P.S 'ON' 'OFF' Inhibit = 'SHORT' – P.S 'OFF' or V < 0.8V – P.S 'OFF' The INHIBIT signal is floating form output and input. SIGNAL RTN This signal is used as grounding for INHIBIT signal. Signal RTN is isolated from output and input. Additional optional ON/OFF inputs: Enable OR 28V between Inhibit pin to signal RTN to active the power supply (output turned on) - Please consult factory.
Page 4 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Power Good Signal The POWER GOOD signal indicates the status of the output voltage. When output voltage rises above 95% ± 5% of its nominal value, pin J will be pulled down to pin H through a resistor and a phototransistor. When output voltage falls below 90% ± 5% of its nominal value, pin J will be in high impedance mode. If not used, leave the signal unconnected. This signal is referenced to PWR GOOD RTN (connector J2, pin H) Both pins J and H are isolated from all other parts of the circuitry.
Page 5 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in SPECIFICATIONS (CONT.): Environment Designed to meet MIL- STD-810F Temperature -51 °C to 93 °C baseplate Humidity Method 507.4 Up to 95% RH Salt-fog Method 509.4 Altitude Flight: up to 70,000 ft. (operational) Mechanical Shock Method 516.5 Procedure I 20 g / 11 ms terminal peak half-sine shock pulse Vibration Method 514.5 Procedure I 5 grms 20-2000 Hz for 500 seconds at each of 3 perpendicular axes. Fungus Does not support fungus growth, in accordance with the guidelines of MIL-STD-454, Requirement 4. Rain & Blowing rain Per MIL-STD-810G, Method 506.5, Procedure I (108 mm/hour, 40mph) EMI MIL-STD-461F CE102, CS101, CS114, CS115, CS116, RE102, RS101,RS103 (Shielded output cable) Reliability 100,000 hours, calculated per MIL-STD-217F at +70°C baseplate, Ground Fixed. Cooling Requirements The M2705 is a baseplate cooled unit. The base of the M2705 should be thermally attached to a suitable heatsink that maintains it below +93 °C. Form factor 9.12'' wide, 1.96'' high and 14.88'' deep. For detailed dimensions and tolerances see Drawing: M2705001 Weight 17.6lb * Connectors See page 5 *Based upon analysis and of mechanical parts and M2703.
Page 6 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in POWER FACTOR: Input Power [W] Power Factor (Lagging) 500 > 0.65 1000 ≤ 0.9 1500 ≤ 0.9 PIN ASSIGNMENT INPUT CONNECTOR-J1 Connector type: D38999/20WE06PN OR EQ. OUTPUT CONNECTOR-J2 Connector type: D38999/20WD97SN OR EQ. CHASSIS Note: Chassis PIN This pin is connected to the converter's chassis. Function Pin No. Phase A A Phase B B Phase C C Chassis D SPARE E,F Function Pin No. OUTPUT G,L OUTPUT RTN C,M ON/OFF A Signal RTN B Power Good J Power Good RTN H SPARE E, F,D,K
Page 7 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in OUTLINE DRAWING For detailed dimensions and tolerances see Drawing: M2705001
Page 8 of 8 May 18, 2023 | Rev c | Doc: DS_M2705 Series M2705 Series– AC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in HEAT DISSIPATION SURFACE AREA Please note: Specifications are subject to change without prior notice by the manufacturer