The LPM/LMM409 Series is a modular 900-watt AC-DC power supply that provides a market-leading power density of 14 watts per cubic inch and has an extra low 1U profile. The LMM is the medically approved version. From here on only the LPM version will be discussed, differences for the LMM version will be noted. The LPM409 offers the flexibility of a modular architecture and the combination of high efficiency and high power density. Designed for use where a unique set of voltage and current requirements is needed, the supply s four slots can be configured with PCB-based output modules to deliver up to eight outputs. The LPM output modules operate in any chassis position and can provide up to 900 watts total power from a 150 VAC input and 700 watts from an 85 VAC input. Forced-air cooling with airflow direction from input to output is provided by an internal fan. For LPM409 supplies using less than the four-slot capability, blanking plates are installed for safety purposes and to optimize airflow within the chassis. The supplies are pre-set with default output module settings or with the customers desired output settings prior to delivery. The LPM409 chassis can be populated with the output modules listed in Module Selection table. Conformal coating is available on request, please consult with the factory. Standard output voltages of 1.5 to 54 VDC LPM409 (Industrial) Efficiencies up to 87% typical Industrial equipment Extra-Low 1U profile: 1.6 inch Telecommunications Overall Dimensions: 303.7 x 92 x 40.64 mm (11.9 x 3.6 x 1.6 in) Test and measurement High power density design of 14 Watts/cubic inch Automation and peripherals Audio/broadcast 1 to 4 isolated output slots, fully user configurable Linear and rotary motion Power Factor Correction (PFC) IEC 61000-3-2 compliant 700 W 85 VAC or 900 W 150 VAC of total output power LMM409 (Medical) Zero-load operation Imaging Equipment and Ultrasound Single-wire current sharing Anesthesiology Universal input AC range Surgical Devices Diagnostic Equipment Individual control signals on each module Patient Beds Auxiliary power 5 V (1 A) Home Healthcare 2 LPM/LMM409 Series NO. OF FACTORY-SET MODULE MAX. OUTPUT MAX. OUTPUT 3 2 MODULE P/N SLOTS SINGLE-OUTPUT ADJUSTABLE CURRENT POWER REQUIRED VDC RANGE VDC AMPS WATTS E LPM126-OUTA1-05 1 5 2.0 to 5.3 53 265 F LPM126-OUTA1-12 1 12 5.2 to 15 22 265 G LPM126-OUTA1-24 1 24 14 to 30 11 265 H LPM126-OUTA1-36 1 36 29 to 44 7.4 265 J LPM126-OUTA1-48 1 48 43 to 54 5.5 265 K LPM109-OUTA1-10 1 15 1.5 to 15 6 90 L LPM109-OUTA1-20 1 30 3 to 32 3 90 M LPM118-OUTA2-10 1 15 2x 1.5 to 15 2x 6 2x 90 N LPM118-OUTA2-20 1 30 2x 3 to 32 2x 3 2x 90 0 LPM100-BLAN 1 Blank Panel (Slot Cover) 1 To determine your desired power supply s part number, please refer to Figure 2 for a detailed part number description. Use the LPM Configurator on our website or use our contacts page to locate a distributor for further assistance. 2 For the power derating specification please see section 1.4 below. 3 Add C for Conformal coating option. 1.1. OUTPUT VOLTAGE ADJUSTMENT Each LPM409 modules output voltage is adjustable by means of a trimmer located on the module. For the modules E<->J the trimmer is accessible through the adjustment hole located on the bottom of the power supply (Figure 10). For the modules K<- >N the trimmer is accessible from rear side of the power supply (Figure 5). 1.2. PARALLEL CONNECTIONS Depending on certain situations where current requirements exceed one modules capability, the configurator will process a solution using parallel connections. Paralleling busbars are available to make connections requiring higher current needs. For correct current sharing functionality, it is necessary to interconnect Current Share pins of the modules that will operate in parallel using signal wires. Only E-J modules can be connected in parallel. For more details read section 10.3, see Figure 15. 1.3. SERIAL CONNECTIONS To increase output voltage, it is possible to connect modules in series. Serial busbars are available (see section 10.4) to make connections requiring higher voltage needs. The output of LPM409 is rated as SELV circuit, so the output voltages are guaranteed to be less than 60V. The series combination of modules can exceed this SELV voltage, so in this case the users must take adequate precautions to prevent direct contact with conductive parts. The maximal total voltage must not exceed 200 V. It is recommended to only connect the same modules with the same current rating in series. The voltage sense pins VS+, VS- available on LPM126 modules must be connected according to Figure17. 1.4. POWER DERATING When specifying an LPM409 power supply in an application it is necessary to ensure that LPM409-CHAS and modules (LPM126, LPM118 and LPM109) are operating within their power output capabilities, taking into account the temperature derating and input voltage derating. The maximum permissible output power that may be drawn from LPM409-CHAS and modules assembled in this chassis is given in Figure1. tech.support psbel.com