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medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 1 mds - 4 0 0a pb24 aa highlights & features C C C C C cb certified for worldwide use model number: mds -4 0 0 a pb24 aa unit weight : 405g dimensions ( w x l x h ): 76.2x127x35. 6 mm 3x5x1.4 in ch general description the mds - 4 00 a pb24 of internal open frame p ower s upplies come with universal ac input range from 90 vac to 2 64 vac. other features include low leakage, type bf patient access leakage currents, and electric shock protection compliance with 2 x mopp requirements . the mds series is certified for emc standards according to en 55011for industrial, scientific and medical (is m) radio - frequency equipment; and, e n 55022 for industrial technology equipment (ite) radio - frequency equipment . in addition, only recognized japanese cap acitors are used to ensure long product life. the mds - 4 00a s eries comes with both medical and ite safety approvals, including ul/ ce/ c c c ( 5000m eters ) , and cb certification. designs are compliant with rohs directive 2011/65/eu for environmental protection. model information medical ac - dc open frame model number main output v oltage main o utput c urrent standby output v oltage standby o utput c urrent fan output v oltage fan o utput c urrent total max o utput power mds - 400apb24 aa 24 vdc 0 - 16.66a 5 vdc 0 -2a 12 vdc 0.05 - 0.6a 1) 400w 2) 1) fan output will be presenting when 24v main output is available 2) with 1 0 c fm force air model numbering mds 4 00 a p b 24 a a delta medical power supply max wattage in the product series. maybe lower at some voltage. 06060 w 1 5 0 1 5 0w 1k2 1,200w family code a z product type p : open frame input type code b: 3pin classi output voltage 24 for 24 v revision code revision code all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 2 specifications input ratings / characteristics nominal input v oltage 100-2 4 0 v ac input v oltage range 90-2 64 v ac nominal input f r equency 50- 60hz input f r equency range 47- 63hz input cur r ent (max) 5.5 a in put surge voltage (max) 300vac for 10 0 ms full load e f ficiency (typ.) 9 2 % @ 115vac /60hz 93% @ 230v ac /50hz , reference fig.1 standby power (max) 0.5w (only standby working with inhibit signal high) @ 115vac/6 0hz, 230v ac /50hz inrush cur r ent ( max ) 40 a@2 3 0 v ac, cold start input - pe(protective earth) l eakage c ur r ent (max) 0.1ma @ nc , 0.3 ma @ sfc 1 ) output - pe(protective earth) leakage current for type bf application (max) 0.1ma @ nc, 0. 5 ma @ sfc 1 ) power factor (min) 0.95 @ 115v/50hz, 230v/50hz, full load 1) n c: normal condition, sfc: single fault condition leakage current input -pe leakage current 100vac/60hz (typ) 264vac/60hz (typ) delta limit iec60601 - 1 limit normal condition 1 8 . 3 ua 4 4 . 6 ua 100ua max 5000ua max single fault condition 3 3 . 7 ua 9 1 . 9 ua 300ua max 10000ua max output - pe leakage current for type bf application normal condition 2 9 . 4 ua 8 7 . 3 ua 100ua max 100ua max single fault condition 4 3 . 5 ua 1 30. 5 ua 500ua max 500ua max fig.1 efficiency versus output load 50.000 60.000 70.000 80.000 90.000 100.000 25% 50% 75% 100% 115vac 230vac efficiency (%) output load all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 3 output ratings / characteristics nominal output v oltage (vrated ) 24v output v oltage t olerance 3 % output power 400w max with 1 0 cfm air cooling line regulation (max) 0.5% load regulation (max) 1 % ripple & noise(typ.) 1%pk - pk vrated @ full load, reference fig. 2 start -up time (max) 2 0 00ms@1 15v ac hold -up time ( min ) 1 0 ms@1 15v ac , with 400w load dynamic response (overshoot & undershoot o/p v oltage) 5 % @50 - 100% load capacitive load (max) 1500uf rise time (max) 100ms remote sense compensate up to 500mv lead drop with remote sense short and reverse connection protected . psu can work normally with remote sense pins left open. (a) 115v (measured value=106mv) (b) 230v (measured value=104mv) fig. 2 ripple & noise example , 20mhz bw ripple & noise measurement circuit 0.47uf ceramic 10uf lectrolytic ps load test fixture 5cm scope all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 4 mechanical case cover na dimensions (w x l x h typ. ) 76.2x127x35. 6mm ( 3x5x1. 4 inch ) unit weight 405g indicator na cooling system na environment surrounding air temperature operating absolute m ax - 10c to+ 7 0c , supported power linearly de - rate from 5 0c to 50% rated up to 7 0c for forced air. convection power de - rate from 200w @ 40c to 100w @ 6 0 c note: see power de - rating curve storage -40 c to + 8 5c operating humidity 5 -9 5 % rh (non - condensing) operating altitude 5 ,000 m eters (16402 fts) shock test (non - operating) 50g, 11ms, 3 shocks for each direction vibration (operating) 5 - 500hz, 2grms, 15 minute for each three axis all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 5 power de - rating curve 400w - 10 c 50 c 70 c 200w output power ambient temperature 1 0 cfm forced air convection 100w 40 c 60 c all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 6 protections overvoltage ( max ) 1 3 5 % of rated voltage , latch mode overload / overcurrent ( max ) main output 1 6 0 % of ratedcurrent standby 3 a max hiccup mode ( non - latching, auto - recovery ) over temperature latch mode short circuit hiccup mode, ( non - latching , auto - recovery) reliability mtbf( minimum) at 115v ac , 40 0w, 35 c , 1 0 cfm air flow 5 00 khrs based on telecordia sr -332 operating life at 115vac, 40 0w , ambient 25 c ,1 0 cfm air flow 26,280 hrs safety standards / directives medical safety iec60601 - 1 2 nd and 3 rd , and 3 rd +a1 ed ition cb report tuv en60601 - 1:2006 ul60601 - 1+can/csa 60601- 1: (ed.3.2005) ite safety iec60950 - 1 cb report tu v60950 -1 ul60950 - 1+can/csa60950- 1 gb4943.1 - 2011, gb9254 - 2008, gb17625.1 - 2003 ce mdd directive 93/42/eec environmental rohs directive 2011/65/eu compliant galvanic isolation input to/output (2xmopp) input to/ground (1xmopp) output to/ground (1xmopp) 4000 vac 1500vac 1 ) 1500vac ( type bf application rated) 1) psu can support poe applications with primary to fg 25 00 vac test. all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 7 emc ( compliant with iec 60601 - 1 - 2 4th ed. requirements ) emc / emissions en550 11/ en550 22, fcc title 47 : class b harmonic current emissions iec61000 - 3 -2 meet class d limit immunity to voltage flicker iec 61000- 3 -3 electrostatic discharge iec61000 - 4 -2 level 4 criteria a 1) air discharge: 15 kv contact discharge: 8 kv radiated field iec61000 - 4 -3 criteria a 1 ) 80mhz - 2700mhz, 10v/ m am modulation 385mhz - 5785mhz, 28v/ m pulse mode and other modulation electrical fast transient / burst iec61000 - 4 - 4 level 3 criteria a 1) : 2kv surge iec61000 - 4 -5 level 3 criteria a 1) common mode 3 ) : 2kv differential mode 4 ) : 1kv conducted iec61000 - 4 -6 level 2 criteria a 1) 150khz - 80mhz, 3 vrms , 6vrms at ism bands and amateur radio bands power frequency magnetic fields iec61000 - 4 -8 criteria a 1) magnetic field strength 3 0 a/ m voltage dips iec61000 - 4 -11 criteria a 1) 0% u t , 0.5 cycle ( 10ms ) , 0 o /45 o /90 o /135 o /180 o /225 o /270 o /315 o /360 o criteria b 2 ) 0% u t , 1 cycle ( 20ms ), 0 o criteria b 2) 70% u t , 25 cycle ( 500ms ), 0 o criteria b 2) 0 % u t , 250 cycle ( 50 0 0ms ), 0 o 1 ) criteria a: normal performance within the specification limits 2) criteria b : output out of regulation, or shuts down during test. automatically restore to normal operation after test. 3) asymmetrical: common mode (line to earth) 4 ) symmetrical: differential mode (line to line) all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 8 dimensions w x l x h : 76.2 x 1 27.0 x 35. 6 mm mechanical drawing (3pin input type ) notes D dimensions are in mm (inches) input connector cn1 control and standby connector cn101 pin 1 neutral pin 1 remote sense + pin 2 line pin 2 remote sense C cn1 mates with molex housing 26033031 and molex series 6838 crimp terminals. pin 3 power good + pin 4 power good - (dc rtn) pin 5 remote on_off/inhibit + pin 6 remote on_off/inhibit - (dc rtn) pin 7 5v standby output connector pin 8 dc rtn cn102 vo pin 9 5v standby cn103 dc rtn pin 10 dc rtn cn10 1 mates with molex housing 1041421000 and molex series 104539 crimp terminals. fan connector cn202 p in1 dc rtn p in2 12v fan cn202 mates with jst housing phr - 2 and jst sph - 002t - p0.5s terminals. t wo mounting points in mechanical drawing need to be connected to system earth case together, protective bonding conductor from the end product protective earth terminal (if any) can be tied to cn2 for open frame model. s uggested air flow direction, draw air from input side to output side all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 9 functions start - up time the time required for the output voltage to reach 90% of its set value, after the input voltage is applied. rise time the time required for the output voltage to change from 10% to 90% of its set value. hold - up time hold up time is the time when the ac input collapses and output voltage retains regulation for a certain period of time. the time req uired for the output to reach 9 0 % of its set value, after the input voltage is removed. graph illustrating the start - up time, rise time, and hold- up time all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 10 dynamic response the power supply output voltage will remain within 5 % of its steady state value, when subjected to a dynamic load 50 to 100% of its rated current. 50 to 100% load inrush current inrush current is the peak, instantaneous, input current measured and, occurs when the input voltage is first applied. for ac input voltages, the maximum peak value of inrush current will occur during the first half cycle of the applied ac voltage. this peak value decreases exponent ially during subsequent cycles of ac voltage. overvoltage protection the power supply?s overvoltage circuit will be activated when its internal feedback circuit fails. the output voltage shall not exceed its specifications defined on page 4 under ?protections?. power supply will latch off, and require removal/re - application of input ac voltage in order to restart. short circuit protection the power supply?s output olp/ocp function also provides protection against short circuits. when a short circuit is applied, the output current will operate in ?hiccup mode?, as shown in the illustration in the olp/ocp section on this page. the power supply will return to normal operation after the short circuit is removed . overload & overcurrent protections the power supply?s overload (olp) and overcurrent (ocp) protections will be activated before output current under 1 6 0 % of i o (max load). upon such occurrence, v o will start to dro p. o nce the power supply has reached its maximu m power limit, the protection will be activated and the power supply will go into ?hiccup mode? (auto - recovery). the power supply will rec over once the fault condition causing the olp and ocp is removed and i o is back within th e specified limit. additionally, if the i out i s <1 6 0% but >1 0 0% for a prolong period of time (depending on the load), the over temperature protection (otp) will be activated due to high temperature on critical components. the power supply will then go into latchmode . over temperature protection as mentioned above, the power supply also has over temperature protection (otp). this is activated when the overload condition persists for an extended duration and the output current is below the overload trigger point but >100% load. in the event of a hi gher operating temperature condition at 100% load, the power supply will run into otp when the surrounding air temperature is higher than the operating temperature. when activated, the output voltage will go into latch mode until the input voltage is remov ed; then, reapplied , and the surrounding air temperature drops to its normal operating temperature. all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 11 power good power good+ pin is an open collector transistor (40v/600ma rating). a resistor (suggested value 10kohm, 1/8w) can be added between 5v standby pin (or, other available pull - up voltage that is no greater than 30v ) and the power good+ pin (refer to figure bel ow). value of pull - up resistor may have to be adjusted, depending on voltage used, and other end - use conditions of the power good+ pin connection to the product. when ac input is on, power good+ pin will be high. when ac input is off, power good+ pin will be l ow. there will be a minimum of 3 milliseconds between the time the power good goes to low level, and the time when the output reaches 90% of its rated value. remote on_off/inhibit remote on_off/inhibit can be used to enable or disable only the main output. when the main output is disabled, the +5v standby output will continue to operate. this signal can be pulled down to a low level of 0.3 volts, or shorted to dc - return, in order for the main output to be enabled; and, floated (no connection to the signal), or pulled up to a value greater than or equal to 3 volts, in order to disable the main output. remote sense remote sense feature can be used to compensate for the extra voltage drop on output wires that are connected from the main output termi nals, to the load. with wires connected from the remote sense pins, at the same locations as the wires from the main output, the remote sense function can compensate up to 500mv voltage drop. the power supply will not be damaged if the remote sense pins ar e shorted, or if a reverse/inverted polarity connection is made to the load. all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )
medical ac - dc open frame power supply 24v/400w 3 ? x5 ? high density mds - 400a pb24 aa 12 certificate all delta medical power products conform to the european directive 2011/65/eu. rohs is the abbreviation for ?restriction of the use of certain hazardous substances delta has been certified as meeting the requirement of iso 13485: 2003 and en iso 13485:2012 for the design and manufacture of switching power supply and adaptor for medica l device. in addition to a ul total certification program (tcp) approved client laboratory for iec60950 and iec60065. delta also has participated ul client test data program (cdtp) for iec 60601 all parameters are specified at 25 c ambient unless otherwise noted. www. deltapsu .com ( november 201 6 , rev. 0 8 )

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