Wa DCDC and ACDC Converers Feaures RoHS leadfreesolder and leadsolderexemped producs available year warrany for RoHS complian producs wih an exended emperaure range Complian wih EN, EN Fire & smoke according o EN and NFF6 (ver. V8 or laer; no models wih HS connecor) Class I equipmen Exremely wide inpu volage ranges from 8 o 8 VDC, and 8 o 6 VAC, 7 o Hz Inpu over and undervolage lockou Adjusable oupu volage wih remoe on/off or oupus: SELV, no load, overload & shorcircui proof Recangular curren limiing characerisic PCBs proeced by lacquer Very high reliabiliy." U Safeyapproved o he laes ediion of IEC/EN 69 and UL/CSA 69 8." 6 TE 68 6.6" Table of Conens Descripion... Model Selecion... Funcional Descripion... Elecrical Inpu Daa...6 Elecrical Oupu Daa...9 Auxiliary Funcions... Elecromagneic Compaibiliy (EMC)...7 Immuniy o Environmenal Condiions...9 Mechanical Daa... Safey and Insallaion Insrucions... Descripion of Opions...6 Accessories... BCDG Rev AG, 9Jul8
W DCDC and ACDC Converers Descripion The K Series of DCDC and ACDC converers represens a broad and flexible range of power supplies for use in advanced elecronic sysems. Feaures include high efficiency, high reliabiliy, low oupu volage noise and excellen dynamic response o load/line changes. LK models can be powered by DC or AC wih a wideinpu frequency range (wihou PFC). The converer inpus are proeced agains surges and ransiens. An inpu over and undervolage lockou circuiry disables he oupus, if he inpu volage is ouside of he specified range. Cerain ypes include an inrush curren limier prevening circui breakers and fuses from ripping a swichon. All oupus are open and shorcircui proof, and are proeced agains overvolages by means of builin suppressor diodes. The oupu can be inhibied by a logic signal applied o pin 8 (i). The inhibi funcion is no used, pin 8 mus be conneced wih pin o enable he oupus. LED indicaors display he saus of he converer and allow for visual monioring of he sysem a any ime. Full inpuooupu, inpuocase, oupuocase, and oupu o oupu isolaion is provided. The converers are designed, buil, and safeyapproved o he inernaional safey sandards IEC/EN 69. They are pariculary suiable for railway applicaions and comply wih EN and EN. The case design allows operaion a nominal load up o 7 C wih naural cooling. If forced cooling is provided, he ambien emperaure may exceed 7 C, bu he case emperaure mus remain below 9 C. A emperaure sensor generaes an inhibi signal, which disables he oupus when he case emperaure T C exceeds he limi. The oupus are auomaically reenabled, when he emperaure drops below he limi. Various opions are available o adap he converers o individual applicaions. The converers may eiher be plugged ino a 9 DINrack sysem according o IEC 697, or be chassis mouned. Imporan: For applicaions requiring compliance wih IEC/EN 6 (harmonic disorion), please use our LK or LK Series wih incorporaed power facor correcion (PFC). Model Selecion Nonsandard inpu/oupu configuraions or special cusomer adapaions are available on reques. Table a: Models AK Oupu Oupu Inpu Volage Efficiency Opions V o nom [VDC] [A] V o nom [VDC] [A] V i min 8 VDC η min [%]. 8 AK9RG AK9RG AK9RG AK69RG 79 8 8 8. 7 ⁴, P, D, V ², T, B, B, nong.. AK9RG AK9RG AK669RG 79 8. 8. 7 ⁴, P, D, T, B, B, nong Min. efficiency a V i nom, and T A = C. Typical values are approximaely % beer. Opion V for models wih. V oupus; excludes opion D Second oupu semiregulaed AK, BK, FK models are available as 7 or 9, bu wihou op. E. The oher models CK, DK, EK, LK are available as 7 or 9E (bu no 7E). NFND: No for new designs. Preferred for new designs BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Table b: Models BK, FK, CK Oupu Oupu Inpu Volage Effic. Inpu Volage Effic. Inpu Volage Effic. Opions V o nom [VDC] [A] V o nom [VDC] [A] V i min 7 VDC η min [%] V i min VDC η min [%] V i min 8 VDC η min [%]. 6 BK9RG BK9RG BK9RG BK69RG 8. 8 8 8 FK9RG FK9RG FK9RG FK69RG 8 8 8 86 CK9RG CK9RG CK9RG CK69RG 8 8 8 86 7 ⁴, P, D, V ², T, B, B, nong 6 6 BK9RG BK9RG BK669RG 8 8 8 FK9RG FK9RG FK669RG 8 8 8 CK9RG CK9RG CK669RG 8 8 8 7 ⁴, P, D, T, B, B, nong Table c: Models DK, EK, LK Oupu Oupu Inpu Volage Effic. Inpu Volage Effic. Inpu Volage Effic. Opions V o nom [VDC] [A] V o nom [VDC] [A] V i min VDC η min [%] V i min 67 8 VDC η min [%] V i min 88 7 VDC VAC η min [%]..8 6 DK9ERG DK9ERG DK79ERG DK9ERG DK69ERG 8 8 8 8 86 EK9ERG EK9ERG EK69ERG 8 8 86 LK9ERG LK9ERG LK79ERG LK9ERG LK69ERG 79 8 8 8 8 7 ⁴, P, D, V ², T, B, B, nong.68 6 6..68, 6 6. DK9ERG DK9ERG DK669ERG DK79ERG 6 8 8 8 8 EK9ERG EK9ERG EK669ERG 8 8 8 LK9ERG LK9ERG LK669ERG LK79ERG 6 8 8 8 8 7 ⁴, P, D, T, B, B, nong Min. efficiency a V i nom, and T A = C. Typical values are approximaely % beer. Opion V for models wih. V oupus; excludes opion D Second oupu semiregulaed AK, BK, FK models are available as 7 or 9, bu wihou op. E. The oher models CK, DK, EK, LK are available as 7 or 9E (bu no 7E). Baery loader for V baeries. V o is conrolled by he baery emperaure sensor (see Accessories) wihin.6. V. Opions P and D are no available. 6 Baery loader for V (and 8 V baeries wih seriesconneced oupus). V o is conrolled by he baery emperaure sensor (see Accessories) wihin. 8. V (. 6. V for 8 V baeries). Opions P and D are no available. 7 Opion K is available only for LK wih. V oupu in order o avoid he HS connecor. Efficiency is approx..% worse. NFND: No for new designs. Preferred for new designs BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Par Number Descripion Operaing inpu volage V i : 8 VDC... AK 7 VDC... BK VDC... FK 8 VDC...CK VDC...DK 67 8 VDC... EK VAC (raed volage) or 88 7 VDC... LK Number of oupus..., CK 9 E R D T B G Nominal volage of oupu (main oupu) V o nom. V... V... V... V...6 Oher volages...7, 8 Nominal volage of oupu V o nom None (singleoupu models)... V, V... V, V... V, V...6 Oher specificaions or addiional feaures... 99 Operaional ambien emperaure range T A : o 7 C... 7 o 7 C...9 Oher...,, 6 Auxiliary funcions and opions: Inrush curren limiaion...e Oupu volage conrol inpu... R Poeniomeer (oupu volage adjusmen)...p V i / V o monior (D DD, o be specified )... D ACFAIL signal... V ⁴ Curren share conrol...t H sandard connecor for. V oupu models... K ⁵ Cooling plae sandard case...b or B Cooling plae for long case mm...b RoHScomplian for all 6 subsances... G Cusomerspecific models Opion E is mandaory for all 9 models, excep AK, BK, FK. Feaure R excludes opion P and vice versa. Opion P is no available for baery charger models. Opion D excludes opion V and vice versa; opion V is available for singleoupu models wih. V only. Opion K is available for singleoupu models wih. V oupu o avoid he expensive HS connecor. Noe: The sequence of opions mus follow he order above. This par number descripion is descripive only; i is no inended for creaing par numbers. Example: CK9ERDTBG: DCDC converer, operaing inpu volage range 8 VDC, elecrically isolaed oupus, each providing V, A, inpu curren limier E, conrol inpu R o adjus he oupu volages, undervolage monior D, curren share feaure T, cooling plae B, and RoHScomplian for all six subsances. Produc Marking Basic ype designaion, applicable approval marks, CE mark, warnings, pin designaion, paens and company logo, idenificaion of LEDs, es sockes, and poeniomeer. Specific ype designaion, inpu volage range, nominal oupu volages and currens, degree of proecion, bach no., serial no., and daa code including producion sie, modificaion saus (version), and dae of producion. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Funcional Descripion The inpu volage is fed via an inpu fuse, an inpu filer, a bridge recifier (LK models only), and an inrush curren limier o he inpu capacior. This capacior sources a singleransisor forward converer wih a special clamping circui and provides also he power during he holdup ime. Each oupu is powered by a separae secondary winding of he main ransformer. The resulan volages are recified and heir ripple smoohed by a power choke and an oupu filer. The conrol logic senses he main oupu volage V o and generaes, wih respec o he maximum admissible oupu currens, he conrol signal for he swiching ransisor of he forward converer. The second oupu of doubleoupu models is racking he main oupu, bu has is own curren limiing circui. If he main oupu volage drops due o curren limiaion, he second oupu volage will fall as well and vice versa. Sandard models wih a single. V oupu have a syn chronous recifier o provide good efficiency. N 6 Vi+ 8 Fuse Inpu filer Bridge recifier C Y C i + Forward converer (approx. khz) C Y C Y Op. P Conrol circui Oupu filer 7b 6 8 6 8 R i D/V T S+ Vo+ Vo L Vi S C Y ¹ Transien suppressor (VDR) + ² Suppressor diode (AK, BK, FK models) ³ Inrush curren limier (NTC, only for models wih T A min = C ) or opion E (for CK, DK, EK, LK models only) ⁴ LK models only Fig. Block diagram of singleoupu converers N L 6 Vi+ 8 Vi Fuse Inpu filer Bridge recifier C Y C Y C i + Forward converer (approx. khz) C Y C Y Op. P C Y Conrol circui CY Oupu filer Oupu filer 8b 6 R 8 i D T Vo+ Vo Vo+ 6 8 Vo Fig. Block diagram of doubleoupu models ¹ Transien suppressor (VDR) + ² Suppressor diode (AK, BK, FK models) ³ Inrush curren limier (NTC, only for models wih T A min = C ) or opion E (for CK, DK, EK, LK models only) ⁴ LK models only BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Elecrical Inpu Daa General condiions: T A = C, unless T C is specified. Pin 8 conneced o pin, V o adjused o V o nom (if opion P); R inpu no conneced. Sense line pins S+ and S conneced o Vo+ and Vo respecively. Table a: Inpu daa Model AK BK FK Uni Characerisics Condiions min yp max min yp max min yp max V i Operaing inpu volage I o = I o max 8 7 V i nom Nominal inpu volage T C min T C max I i Inpu curren V i nom, 9. 6..7 A P i Noload inpu power V i min... P i inh Idle inpu power Uni inhibied... R i Inpu resisance 6 7 T C = C R NTC NTC resisance no NTC no NTC no NTC C i Inpu capaciance 8 7 µf V i RFI Conduced inpu RFI EN, V i nom, A A B Radiaed inpu RFI A A A V i abs Inpu volage limis wihou damage VDC 8 VDC W mω Table b: Inpu daa Model CK DK EK LK Uni Characerisics Condiions min yp max min yp max min yp max min yp max 8 67 8 88 7 VDC V i Operaing inpu volage I o = I o max 8 T C min T () 6 VAC C max V i nom Nominal inpu volage 6 VDC I i Inpu curren V i nom,..6.8.7 A P i Noload inpu power V i min.... P i inh Idle inpu power Uni inhibied.... R i Inpu resisance 7 8 8 T C = C R NTC NTC resisance C i Inpu capaciance 96 6 6 7 6 7 µf V i RFI Conduced inpu RFI EN, V i nom, B B B B Radiaed inpu RFI A A A A V i abs Inpu volage limis wihou damage VDC Boh oupus of doubleoupu models are loaded wih. Valid for 7 versions wihou opion E (9 versions exclude NTC). This is he nominal value a C and applies o cold converers a iniial swichon cycle. Subsequen swichon/off cycles increase he inrush curren peak value. For s max. Raed inpu volage range is VAC (nominal VAC). Nominal frequency range is 6 Hz; operaing frequency range is 7 Hz ( Hz for V mains). For frequencies 6 Hz, refer o Insallaion Insrucions. W mω BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 6 of
W DCDC and ACDC Converers Inpu Transien Proecion A suppressor diode or a VDR (depending upon he inpu volage range) ogeher wih he inpu fuse and a symmerical inpu filer form an effecive proecion agains high inpu ransien volages which, ypically occur in mos insallaions, bu especially in baerydriven mobile applicaions. Sandard nominal baery volages are:,, 6, 8, 6, 7,, and V. Railway baeries are specified wih a olerance of % o +%, wih shor excursions up o ±%. In cerain applicaions, addiional surges according o RIA are specified. The power supply mus no swich off during hese surges, and since heir energy can pracically no be absorbed, an exremely wide inpu range is required. The EK inpu range for V baeries has been designed and esed o mee his requiremen. Inpu Fuse A fuse mouned inside he converer proecs agains severe defecs. This fuse may no fully proec he converer, when he inpu volage exceeds VDC. In applicaions, where he converers operae a source volages above VDC, an exernal fuse or a circui breaker a sysem level should be insalled. Table : Fuse Specificaion Model Fuse ype Reference Raing AK fasblow Lilefuse A, V BK fasblow Lilefuse A, V FK slowblow Schurer SPT 6 A, V CK slowblow Schurer SPT. A, V DK slowblow Schurer SPT 8 A, V EK, LK slowblow Schurer SPT A, V Fuse size 6. mm Fuse size mm Inrush Curren Limiaion The CK, DK, EK, and LK models incorporae an NTC resisor in he inpu circuiry, which a iniial urnon reduces he peak inrush curren value by a facor of, such proecing connecors and swiching devices from damage. Subsequen swichon cycles wihin shor periods will cause an increase of he peak inrush curren value due o he warmingup of he NTC resisor. See also Opion E. The inrush curren peak value (iniial swichon cycle) can be deermined by following calculaion; see also fig. : V i source I inr p = (R s ex + R i + R NTC ) I i inr [A] 8a R s ex I inr p R i R NTC 9a CK EK, LK DK + V i source C i in. [ms] Fig. Typical inrush curren versus ime a V i max, R ex = Ω. For AK, BK, FK, and for applicaionrelaed values, use he formula in his secion o ge realisic resuls. Fig. Equivalen inpu circui BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 7 of
W DCDC and ACDC Converers Saic Inpu Curren Characerisics I i [A] a AK. LK (DC inpu) BK FK CK DK EK V i V i min Fig. Typical inpu curren versus relaive inpu volage Reverse Polariy The converers (excep LK models) are no proeced agains reverse polariy a he inpu o avoid unwaned power losses. In general, only he inpu fuse will rip. LK models are fully proeced by he builin bridge recifier. Inpu Under/Overvolage Lockou If he inpu volage remains below approx..8 V i min or exceeds approx.. V i max, an inernally generaed inhibi signal disables he oupu(s). When checking his funcion, he absolue maximum inpu volage V i abs should be observed. Beween V i min and he undervolage lockou level he oupu volage may be below he value defined in able Elecrical Oupu daa. HoldUp Time h [ms] a EK CK/FK DK h [ms] 9a AK BK. 6 V i V i min Fig. 6a Typical holdup ime h versus relaive DC inpu volage. V i /V i min. DCDC converers require an exernal series diode in he inpu pah, if oher loads are conneced o he same inpu supply lines. V i V i min Fig. 6b Typical holdup ime h versus relaive AC inpu volage (LK models) BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 8 of
W DCDC and ACDC Converers Elecrical Oupu Daa General Condiions: T A = C, unless T C is specified. Pin 8 (i) conneced o pin (S or Vo ), R inpu no conneced, V o adjused o V o nom (opion P), Sense line pins (S+) and (S ) conneced o pins (Vo+) and 8 (Vo ), respecively. Table : Oupu daa of singleoupu models Model AK LK AK LK/7 AK LK AK LK6 Uni Nom. oupu volage. V V /.8 V V V Characerisics Condiions min yp max min yp max min yp max min yp max V o Oupu volage V i nom,.7..9.7.9.9.86. V o BR Oupu proecion (suppressor diode) 7 6../7. 9.6 8. V Oupu curren nom. V i min T C min T C max 6 /, 6 / 8 6 / 6 /6 I o L Oupu curren limi V i min 6 /6., 6 /. 8.6 6 /.. 6 /6. V o V o u Oupu noise Saic line regulaion wih respec o V i nom Low frequency 8 Swiching frequ. Toal incl. spikes V, I i nom o nom BW = MHz 8 7 V i min ± ± ± ± A mv pp V o l Saic load regulaion V i nom (. ) V o d d Dynamic load regulaion 9 Volage deviaion 9 V i nom ± ± ± ± Recovery. ime 9.... ms mv α v o Temperaure coefficien of oupu volage T C min T C max ±. ±. ±. ±. %/K If he oupu volages are increased above V o nom hrough Rinpu conrol, opion P seing, remoe sensing or opion T, he oupu currens should be reduced accordingly so ha P o nom is no exceeded. See fig. 7 below! Measured according o IEC/EN 6 wih a probe according o annex A For baery charger applicaions, a defined negaive emperaure coefficien can be provided by using a emperaure sensor (see Accessories), bu we recommend choosing he special baery charger models. Especially designed for baery charging using he emperaure sensor (see Accessories). V o is se o.8 V ±% (Rinpu open) 6 Values for AK models 7 Breakdown volage of he incorporaed suppressor diode ( ma; ma for V oupu). Exceeding V o BR is dangerous for he suppressor diode. 8 LK models only (wice he inpu frequency) 9 See Dynamic load regulaion V o [V]. V or Models wih diodes Models wih synchr. recifier JM9.. I o / Fig. 7 Oupu volage regulaion for models wih synchronous recifier and wih diode recifier BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 9 of
W DCDC and ACDC Converers Table 6a: Oupu daa of doubleoupu models. General condiions as per able. Model (Nom. oupu volage) AK LK ( x V) AK LK ( x V) Uni Characerisics Condiions Oupu Oupu Oupu Oupu min yp max min yp max min yp max min yp max V o Oupu volage V i nom,,.9.7.8.8.9.9.78. V o BR 8 Oupu proecion (suppressor diode).. 9.6 9.6 V Oupu curren nom. V i min T C min T C max /6 /6 / / I o L Oupu curren limi V i min. /6.. /6.. /.. /. V o V o u Oupu noise Saic line regulaion wih respec o V i nom Low frequency 9 Swiching frequ. Toal incl. spikes V, I i nom o nom BW = MHz V i min ± ± A mv pp V o l V o d d Saic load regulaion Dynamic load regulaion V i nom (. ) Volage deviaion V i nom ± ± ± ±. I Recovery o nom ime. I o nom.. ms mv α v o Temperaure coefficien of oupu volage 6 T C min T C max ±. ±. %/K Table 6b: Oupu daa of doubleoupu models. General condiions as per able. Model (Nom. oupu volage) AK LK66 / 7 ( V /.68 V) 7 Uni Oupu Oupu Characerisics Condiions min yp max min yp max 8 V o BR Oupu proecion (suppressor diode) 8./ 7 8./ 7 V V o Oupu volage V i nom,,.86 7. 7.6 7.6 7 Oupu curren nom. V i min T C min T C max., 7 /., 7 / I o L Oupu curren limi V i min.7, 7 /..7, 7 /. V o V o u Oupu noise Saic line regulaion wih respec o V i nom Low frequency 9 Swiching frequ. Toal incl. spikes V, I i nom o nom BW = MHz 8 8 V i min ± A mv pp V o l V o d d Saic load regulaion Dynamic load regulaion V i nom (. ) 6 Volage deviaion V i nom ± ±. I Recovery o nom ime. I o nom. ms mv α v o Temperaure coefficien of oupu volage 6 T C min T C max ±. %/K Values for AK models If he oupu volages are increased above V o nom via Rinpu conrol, opion P seing, remoe sensing, or opion T, he oupu currens should be reduced accordingly, so ha P o nom is no exceeded. Measured according o IEC/EN 6 wih a probe annex A See Dynamic Load Regulaion See Oupu Volage Regulaion of DoubleOupu Models 6 For baery charger applicaions, a defined negaive emperaure coefficien can be provided by using a emperaure sensor; see Accessories. 7 Especially designed for baery charging using he baery emperaure sensor; see Accessories. V o is se o.68 V ±% (Rinpu opencircui). 8 Breakdown volage of he incorporaed suppressor diodes ( ma). Exceeding V o BR is dangerous for he suppressor diodes. 9 LK models only (wice he inpu frequency) BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Thermal Consideraions If a converer is locaed in free, quasisaionary air (convecion cooling) a he indicaed maximum ambien emperaure T A max (see able Temperaure specifica ions) and is operaed a is nominal inpu volage and oupu power, he emperaure measured a he Measuring poin of case emperaure T C (see Mechanical Daa) will approach he indicaed value T C max afer he warmup phase. However, he relaionship beween T A and T C depends heavily upon he condiions of operaion and inegraion ino a sysem. The hermal condiions are influenced by inpu volage, oupu curren, airflow, and emperaure of surrounding componens and surfaces. T A max is herefore, conrary o T C max, an indicaive value only. Cauion: The insaller mus ensure ha under all operaing condiions T C remains wihin he limis saed in he able Temperaure specificaions. Noes: Sufficien forced cooling or an addiional hea sink allows T A o be higher han 7 C (e.g., 8 C), as long as T C max is no exceeded. Deails are specified in fig. 8. I o /..8.6 Convecion cooling Forced cooling 89a T C max.. T A min 6 7 8 9 T A [ C] Fig. 8 Oupu curren deraing versus emperaure for 7 and 9 models. Thermal Proecion A emperaure sensor generaes an inernal inhibi signal, which disables he oupus, when he case emper aure exceeds T C max. The oupus auomaically recover, when he emperaure drops below his limi. Coninuous operaion under simul aneous exreme worscase condiions of he following hree parameers should be avoided: Minimum inpu volage, maximum oupu power, and maximum emperaure. Oupu Proecion Each oupu is proeced agains overvolages, which could occur due o a failure of he inernal conrol circui. Volage suppressor diodes (which under wors case condiion may become a shor circui) provide he required proecion. The suppressor diodes are no designed o wihsand exernally applied overvolages. Overload a any of he oupus will cause a shudown of all oupus. A red LED indicaes he overload condiion. Noe: V o BR is specified in Elecrical Oupu Daa. If his volage is exceeded, he suppressor diode generaes losses and may become a shor circui. Parallel and Series Connecion Single or doubleoupu models wih equal oupu volage can be conneced in parallel using opion T (curren sharing). If he T pins are inerconneced, all converers share he oupu curren equally. Singleoupu models and/or main and second oupus of doubleoupu models can be conneced in series wih any oher (similar) oupu. Noes: Parallel connecion of doubleoupu models should always include boh, main and second oupu o mainain good regulaion. No more han converers should be conneced in parallel. Series connecion of second oupus wihou involving heir main oupus should be avoided, as regulaion may be poor. The maximum oupu curren is limied by he oupu wih he lowes curren limiaion when several oupus are conneced in series. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers V o /V o nom.98. I o I ol 98a.. I o / Fig. 9 Oupu characerisic V o versus I o (singleoupu models or doubleoupu models wih parallelconneced oupus). Oupu Volage Regulaion Figure applies o singleoupu or doubleoupu models wih parallelconneced oupus. For independen configuraion, oupu is under normal con diions regulaed o V o nom, irrespecive of he oupu currens. V o depends upon he load disribuion. If boh oupus are loaded wih more han % of, he deviaion of V o remains wihin ±% of V o. Figures o show he regulaion depending on load disribuion. Two oupus of a doubleoupu model conneced in parallel behave like he oupu of a singleoupu model. Noe: If oupu is no used, connec i in parallel wih oupu! This ensures good regulaion and efficiency. V o V o [V] I o / V od d V o ±% V o ±% V od d.6....8 I o = 6. A I o =. A I o =. A I o =. A I o =.6 A a.6. µs µs Fig. Typical dynamic load regulaion of V o... c 6 7 I o [A] Fig. Models wih oupus V: V o versus I o wih various I o (yp) V o [V] V o [V].7.. 6a I o =. A I o =.7 A I o =. A I o =. A I o =. A 6. I o = A I o = A I o = A I o =. A I o =. A 7a..7..... 6 I o [A] Fig. Models wih oupus V: V o versus I o wih various I o (yp).... I o [A] Fig. Models wih oupus V: V o versus I o wih various I o (yp) BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Auxiliary Funcions Inhibi for Remoe On/Off The oupus may be enabled or disabled by means of a logic signal (TTL, CMOS, ec.) applied beween he inhibi inpu i (pin 8) and pin (S or Vo ). In sysems wih several converers, his feaure can be used o conrol he acivaion sequence of he converers. If he inhibi funcion is no required, connec he inhibi pin 8 wih pin! Noe: If pin 8 is no conneced, he oupu is disabled. Table 7: Inhibi characerisics Characerisics Condiions min yp max Uni V inh V o = on.8 Inhibi volage V i min V V o = off. I inh Inhibi curren V inh = µa Rise ime r ms Fall ime Depending on I f o Vi+ Vi 6a Vo+ i 8 S /Vo I inh V inh Fig. Definiion of V inh and I inh. I inh [ma]..6 V inh =.8 V V inh =. V 6a V o /V o nom 6..8...8 V o = on V o = off V inh [V]. Inhibi Fig. Fig. 6 Typical inhibi curren I inh versus inhibi volage V inh Oupu response as a funcion of inhibi conrol r f Sense Lines (Single Oupu Models) Imporan: Sense lines mus always be conneced! Incorrecly conneced sense lines may acivae he overvolage proecion resuling in a permanen shorcircui of he oupu. This feaure allows for compensaion of volage drops across he connecor conacs and if necessary, across he load lines. We recommend connecing he sense lines direcly a he female connecor. To ensure correc operaion, boh sense lines (S+, S ) should be conneced o heir respecive power oupus (Vo+ and Vo ), and he volage difference beween any sense line and is respecive power oupu (as measured on he connecor) should no exceed he following values: Table 7: Maximum volage compensaion allowed using sense lines Oupu volage Toal volage difference beween sense lines and heir respecive oupus Volage difference beween Vo and S. V <. V <. V V, V, V <. V <. V BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Programmable Oupu Volage (RFuncion) As a sandard feaure, he converers offer an adjusable oupu volage, idenified by leer R in he ype designaion. The conrol inpu R (pin 6) acceps eiher a conrol volage V ex or a resisor R ex o adjus he desired oupu volage. When inpu R is no conneced, he oupu volage is se o V o nom. a) Adjusmen by means of an exernal conrol volage V ex beween pin 6 (R) and pin (S ): The conrol volage range is.7 VDC and allows for an adjusmen in he range of approximaely % of V o nom. V o V ex. V V o nom b) Adjusmen by means of an exernal resisor: Depending upon he value of he required oupu volage, he resisor shall be conneced eiher: Beween pin 6 and pin o achieve an oupu volage adjusmen range of approximaely % of V o nom. or: Beween pin 6 and pin o achieve an oupu volage adjusmen range of % of V o nom. Vi+ 7a 6 R + S /Vo V ex Vo+ 6a + Vi Vo+ Vo Vo 6 8 V o V V 8 V C o Vo+ Vi+ Vo S+/Vo+ R' ex R 6 R ex R' ex 6 R S /Vo R ex Vi Fig. 7 Oupu volage conrol for singleoupu models Fig. 8 Doubleoupu models: Wiring of he Rinpu for oupu volages V, V, or 8 V wih boh oupus in series. A ceramic capacior (C o ) across he load Warnings: V ex shall never exceed.7 VDC. The value of R ex shall never be less han he lowes value as indicaed in able R ex (for V > V nom ) o avoid damage o he converer! Noes: The RFuncion excludes opion P (oupu volage adjusmen by poeniomeer). If he oupu volages are increased above V o nom via Rinpu conrol, opion P seing, remoe sensing, or opion T, he oupu currens should be reduced, so ha P o nom is no exceeded. Wih doubleoupu models, he second oupu follows he volage of he conrolled main oupu. In case of parallel connecion he oupu volages should be individually se wihin a olerance of %. Tes Sockes Tes sockes (pin diameer mm) for measuring he main oupu volage V o or V o are locaed a he fron of he converer. The posiive es socke is proeced by a series resisor (see: Funcional Descripion, block diagrams). The volage measured a he es sockes is slighly lower han he value a he oupu erminals. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Table 8a: R ex for V o < V o nom ; approximae values (V i nom,, series E 96 resisors); R ex = no fied V o nom =. V V o nom = V V o nom = V V o nom = V V o [V] R ex [kω] V o [V] R ex [kω] V o [V] R ex [kω] V o [V] R ex [kω]............976.6.6.8.76 8.66.7. 6 7 8 9 6 8 6 8.86..87..6 8.6.. 6 8 9 8 6 8 6 8.69.7.67. 6. 8.6 6. 6. 6. 6 8 6 8 8 6 8 6.8...87..6 8.6.. Table 8b: R ex for V o > V o nom ; approximae values (V i nom,, series E 96 resisors); R ex = no fied V o nom =. V V o nom = V V o nom = V V o nom = V V o [V] R ex [kω] V o [V] R ex [kω] V o [V] R ex [kω] V o [V] R ex [kω]........ 7 88.7 7 6.9 7.6......6.7.8.....6.8....6 6. 6. 8 9 69 7 8 6 7 96 69...6.8 6. 6. 6. 6...8..6...8. Firs column: V o or V o ; second column: doubleoupu models wih seriesconneced oupus 768 9 6 67...7....7 6. 6. 6. 8. 9. 9........8 69 8 698 9 8 Display Saus of LEDs V o >.9 o.98 V o adj 6a OK i I o L V i LEDs OK, i and I o L saus versus inpu volage Condiions: I o, T C T C max, V inh.8 V V i uv = undervolage lockou, V i ov = overvolage lockou V i uv V i min V i max V i ov V i abs OK I o L V o >.9 o.98 V o adj V o <.9 o.98 V o adj I ol I o LEDs OK and I o L saus versus oupu curren Condiions: V i min, T C T C max, V inh.8 V i T C LED i versus case emperaure Condiions: V i min, I o, V inh.8 V T C max T PTC hreshold V inh hreshold i V LED off +.8 V +. V LED Saus undefined V i inh + V LED on LED i versus V inh Condiions: V i min, I o, T C T C max Fig. 9 LED indicaors BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Baery Charging / Temperaure Sensor All converers wih an Rinpu are suiable for baery charger applicaions, bu we recommend choosing he models especially designed for his applicaion DK/LK7 or DK/LK7; see Model Selecion. For opimal baery charging and life expecancy of he baery an exernal emperaure sensor can be conneced o he Rinpu. The sensor is mouned as close as possible o he baery and adjuss he oupu volage according o he baery emperaure. Depending upon cell volage and he emperaure coefficien of he baery, differen sensor ypes are available, see Accessories. Cell volage [V]. 69b Inpu Power supply Vo+ Vo R 99d Load.... + +.. V o safe Temperaure sensor Fig. Connecion of a emperaure sensor Baery. C V C =.7 V, mv/k V C =. V, mv/k V C =.7 V,. mv/k V C =. V,. mv/k Fig. Trickle charge volage versus emperaure for defined emp. coefficien. V o nom is he oupu volage wih open Rinpu. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 6 of
W DCDC and ACDC Converers Elecromagneic Compaibiliy (EMC) A meal oxide VDR ogeher wih he inpu fuse and an inpu filer form an effecive proecion agains high inpu ransien volages, which ypically occur in mos insallaions. The con verers have been successfully esed o he following specificaions: Elecromagneic Immuniy Table 9: Elecromagneic immuniy (ype ess) Phenomenon Sandard Level Coupling mode Value applied Supply relaed surge Direc ransiens Indirec couples ransiens Elecrosaic discharge (o case) Elecromagneic field Elecrical fas ransiens / burs Surges Conduced disurbances Power frequency magneic field Waveform RIA A. V Ba // ms +i/ i B. V Ba.//. s C 96 V p / μs D 8 V p / μs E +i/ i, i/c 6 V p./ μs F 8 V p./ μs G 8 V p./. μs H 8 V p / μs J 6 V p./ μs +o/c, o/c K 8 V p./ μs L 8 V p./. μs Source imped. Tes procedure In oper. Perf. cri.. Ω posiive surge yes A Ω Ω IEC/EN conac discharge ±8 V 6 p Ω / ns air discharge ± V pf p IEC/EN 6 IEC/EN 6 pos. & neg. yes B pos. & neg. discharges x 6 anenna V/m AM 8% / khz N/A 8 MHz yes A 7 anenna anenna V/m 8 MHz V/m AM 8% / khz N/A MHz V/m MHz V/m % duy cycle, Hz rep. rae 8 capaciive, o/c ± V p burss of / ns; ±i/c, +i/ i direc ± V p. / khz over ms; burs period: ms yes yes N/A 9 ± MHz yes A Ω 6 s posiive 6 s negaive ransiens per coupling mode IEC/EN ±i/c ± V p Ω pos. & neg. 6 9. / µs surges per +i/ i ± V p Ω coupling mode IEC/EN 66 IEC/EN 68 i, o, signal wires VAC ( dbµv) yes yes AM 8% / khz Ω. 8 MHz yes A A/m 6 s in all axes yes A i = inpu, o = oupu, c = case A = normal operaion, no deviaion from specs.; B = emporary loss of funcion or deviaion from specs possible RIA covers or exceeds IEC 67 and EN :7. Surge D corresponds o EN :7, waveform A; surge G corres ponds o EN :, waveform B Only me wih exended inpu volage range of CS (for 8 V baery) and ES (for V baery) model ypes. Such CS models are available on cusomer s reques. Sandard DS models ypes (on V baery) will shu down during he surge and recover auomaically. Exceeds EN : able 6. and EN :6 able.. 6 Corresponds o EN : able 6. and exceeds EN :6 able.. 7 Corresponds o EN : able 6. and EN :6 able. (compliance wih digial communicaion devices). 8 Corresponds or exceeds EN : able. and EN :6 able.. 9 Covers or exceeds EN : able. and EN :6 able.. Corresponds o EN : able. and EN :6 able. (radio frequency common mode). Corresponds o EN :6 able.. A A A A BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 7 of
W DCDC and ACDC Converers Elecromagneic Emissions dbµv PMM 8 PLUS: Peak, conduced Vi+, QP + AV, 9, : h BK69R, U i = V, U o = V I o = 6 A JMa dbµv PMM 8 PLUS: Peak, conduced Vi+, QP + AV, 9, : h DK69ERB, U i = V, U o = V I o = 6 A JM 8 EN A (qp) 8 6 EN A (av) 6 EN B (qp) EN B (av).. MHz.. MHz Fig. a Conduced emissions (peak/quasipeak and average) a he phase inpu according o EN /, measured a V i nom and (BK69R). The neural line performs quie similar. Fig. b Conduced emissions (peak/quasipeak and average) a he phase inpu according o EN /, measured a V i nom and (DK69ERB). The neural line performs quie similar. dbµv/m TÜVDivina, ESVS :R&S, BBA 96/UHALP 97:Schwarzb., QP, 9 Tesdisance m, BK69R, U i = V, U o = V I o = 6 A EN A dbµv/m TÜVDivina, ESVS :R&S, BBA 96/UHALP 97:Schwarzb., QP, 9 Tesdisance m, DK69ERB, U i = V, U o = V I o = 6 A EN A JM JM < dbµv/m < dbµv/m MHz MHz Fig. a Typical radiaed emissions according o EN /, anenna m disance, measured a V i nom and (BK69R) Fig. b Typical radiaed emissions according o EN /, anenna m disance, measured a V i nom and (DK69ERB) BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 8 of
W DCDC and ACDC Converers Immuniy o Environmenal Condiions Table : Mechanical and climaic sress Tes mehod Sandard Tes Condiions Saus Cab Kb Fc Fh Ea Damp hea seady sae Sal mis, cyclic sodium chloride (NaCl) soluion Vibraion (sinusoidal) Random vibraion broad band (digial conrol) & guidance Shock (halfsinusoidal) IEC/EN 66878 MILSTD8D secion 7. Temperaure: ± C Relaive humidiy: 9 +/ % Duraion: 6 days IEC/EN 668 Concenraion: % ( C) for h IEC/EN 6686 MILSTD8D secion. Sorage: Duraion: Acceleraion ampliude: Frequency ( Oc/min): Tes duraion: C, 9% rel. humidiy cycles of h. mm ( 6 Hz) IEC/EN 6686 Acceleraion specral densiy:. g n /Hz IEC/EN 6687 MILSTD8D secion 6. Shock EN :7 clause.., EN 67 sec., class B, body mouned Simulaed long life esing a increased random vibraion levels EN :7 clause.., EN 67 sec. 8 and 9, class B, body mouned Body mouned = chassis of a railway coach Frequency band: Acceleraion magniude: Tes duraion: Converer no operaing Converer no operaing g n = 9 m/s (6 Hz) Converer Hz operaing 7. h (. h in each axis) 8 Hz.9 g n rms. h (. h in each axis) Converer operaing Acceleraion ampliude: g n = 9 m/s Converer Bump duraion: ms operaing Number of bumps: 8 ( in each direcion) Acceleraion ampliude: Bump duraion: Number of bumps: Acceleraion specral densiy: Frequency band: Acceleraion magniude: Tes duraion:. g n ms 8 ( in each direcion). g n /Hz Hz.8 g n rms h ( h in each axis) Converer operaing Converer operaing Temperaures Table : Temperaure specificaions, valid for an air pressure of 8 hpa (8 mbar) Model 6 7 (opion) 9 Uni Characerisics Condiions min max min max min max min max T A Ambien emperaure Converer operaing 6 7 7 T C Case emperaure 8 9 9 9 C T S Sorage emperaure No operaing 8 8 8 8 Overemperaure lockou a T C > 9 C Cusomerspecific models Reliabiliy and Device Hours Table : MTBF calculaed according o MILHDBK 7F Raings a specified Model Ground benign Ground fixed Ground mobile Uni case emperaure C C 7 C C MTBF LK667 88 8 Device hours AK LK Calculaed according o MILHDBK7FN Saisic values, based on an average of working hours per year, over years in general field use. h BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 9 of
W DCDC and ACDC Converers Mechanical Daa Dimensions in mm. The converers are designed o be insered ino a 9 rack, 6 mm long, according o IEC 697. 7 TE 9 TE.7 9. 7..... 9e 89 Measuring poin of case emperaure T C 6. (U). 9.9 9.7 9.. Graviaional axis Tes sockes (+/ ) Opion P (V o ) Opion D (V o ) Opion D (V i ) LED i (red) LED OK (green) LED I ol (red) d 7.8 (7.... 7.9) 8 Fron plae Main face Back plae 68..9.8 Ø x 9 Ø.8. Screw holes of he fronplae = Ø. = Ø. European Projecion Fig. Aluminum case K wih hea sink; black finish (EP powder coaed); weigh approx..6 kg Mouning slos for chassis or wall mouning Noes: d mm, recommended minimum disance o nex par in order o ensure proper air circulaion a full oupu power. free air locaion: he converer should be moun ed wih fins in a verical posiion o achieve maximum airflow hrough he hea sink. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers 7. 8..8 7 6. 7 6.. European Projecion 7.. ±. 68 Fig. Opion B: Aluminum case K wih large cooling plae; black finish (EP powder coaed). Suiable for fron mouning. Toal weigh approx.. kg 8..8 8 9b 7 TE TE.7 M (U) Measuring poin of case emperaure T C 7.. 68 (7.... 7.9) 7. Fig. 6 Opion B: Aluminum case K wih small cooling plae; black finish (EP powder coaed). Suiable for mouning wih access from he backside. Toal weigh approx.. kg. Noe: Long case wih opion B, elongaed by 6 mm for mm rack deph, is available on reques (no LEDs, no es sockes). BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Safey and Insallaion Insrucions Connecor Pin Allocaion The connecor pin allocaion able defines he elecrical poenials and he physical pin posiions on he H or HS connecor. The proecive earh is conneced by a leading pin (no. ), ensuring ha i makes conac wih he female connecor firs. b Fixures for connecor reenion clips HZZ9G (see Accessories) Connecor ype H Fixures for connecor reenion clips HZZ9G (see Accessories) / Connecor ype HS /6 Fig. 7 View of module s male connecors Table : H and HS connecor pin allocaion Pin No. Connecor ype HS AK (all), BK LK excep op. K AK Connecor ype H BK LK//6 BK LK wih op. K Vo+ Vo+ Vo+ Posiive Oupu Vo+ Posiive Oupu Posiive Oupu 6 Vo+ Vo+ 8 Vo Vo Vo Negaive Oupu Vo Negaive Oupu Negaive Oupu Vo Vo BK LK Posiive Oupu Negaive Oupu S+ Sense posiive Vo+ Posiive Oupu S+ Posiive Sense Vo+ Posiive Oupu S Sense negaive Vo Negaive Oupu S Negaive Sense Vo Negaive Oupu 6 R Conrol of V o R Conrol V o R Conrol of V o R Conrol V o 8 i Inhibi i Inhibi i Inhibi i Inhibi D V Save daa ACFAIL D Save daa D Save daa D Save daa T Curren sharing T Curren sharing T Curren sharing T Curren sharing Proecive earh Proecive earh Proecive earh Proecive earh 6 Posiive Inpu Vi+ N~ Posiive Inpu Vi+ N~ Posiive Inpu Vi+ N~ Vi+ Posiive Inpu 8 Neural line Vi+ N~ Neural line Vi+ N~ Neural line Negaive Inpu Vi L~ Negaive Inpu Vi L~ Negaive Inpu Vi L~ Vi Negaive Inpu Phase line Vi L~ Phase line Vi L~ Phase line No conneced, if opion P is fied. Leading pin (preconnecing) Opion D excludes opion V and vice versa. Pin is no conneced, unless opion D or V is fied. LK models Only conneced, if opion T is fied. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Insallaion Insrucions Noe: These converers have no power facor correcion (PFC). The LK/ models are inended o replace he LK and LK converers in order o comply wih IEC/EN 6. LK is replaced by LK wih opion K. The converers are componens, inended exclusively for inclusion wihin oher equipmen by an indusrial assembly operaion or by professional insallers. Insallaion mus sricly follow he naional safey regulaions in compliance wih he enclosure, mouning, creepage, clearance, casualy, markings, and segregaion requiremens of he enduse applicaion. Connecion o he sysem shall be made via he female connecor H (sandard) or HS; see Accessories. Oher insallaion mehods may no mee he safey requiremens. Pin no. ( ) is conneced wih he case. For safey reasons i is essenial o connec his pin reliably o proecive earh. The inpu pins / (Vi or L~) are conneced via a builin fuse, which is designed o proec in he case of a converer failure. An addiional exernal fuse, suiable for he applicaion, migh be necessary in he wiring o he oher inpu 6/8 (Vi+ or N~) or even o pins /, paricularly if: Local requiremens demand an individual fuse in each source line Phase and neural of he AC mains are no defined or canno be assigned o he corresponding erminals. Neural and earh impedance is high or undefined Noes: If he inhibi funcion is no used, pin no. 8 (i) should be conneced wih pin no. o enable he oupu(s). Do no open he converers, or warrany will be invalidaed. Due o high curren values, he converers provide wo inernally parallel conacs for cerain pahs (pins /6, 8/, 6/8 and /). I is recommended o connec boh female connecor pins of each pah in order o keep he volage drop low and avoid excessive connecor currens. If he second oupu of doubleoupu models is no used, connec i parallel wih he main oupu. Make sure ha here is sufficien airflow available for convecion cooling and verify i by measuring he case emperaure T C, when he converer is insalled and operaed in he enduse applicaion; see Thermal Consider aions. Ensure ha a converer failure (e.g, an inernal shor circui) does no resul in a hazardous condiion. Sandards and Approvals The converers are safeyapproved according o he laes ediion of IEC/EN 69 and UL/CSA 69. The converers correspond o Class I equipmen and have been evaluaed for: Buildingin Basic insulaion beween inpu and case based on VAC, and double or reinforced insulaion beween inpu and oupu(s) Funcional insulaion beween oupus Overvolage caegory II Polluion degree environmen Max. aliude: m The converers fulfil he requiremens of a fire enclosure. The converers are subjec o manufacuring surveillance in accordance wih he above menioned sandards and ISO 9:. A CBscheme is available. Railway Applicaions and Fire Proecion The converers have been designed by observing he railway sandards EN, EN, and EN. All boards are coaed wih a proecive lacquer. The converers wih version V8 (or laer, bu no models wih HS connecor: V oupu wihou opion K) comply wih NFF6 (I/F). They also comply wih EN, EN (6), if insalled in a echnical comparmen or cabine. Proecion Degree and Cleaning Liquids Condiion: Female connecor fied o he converer. IP : All models excep hose wih opion P, and excep hose wih opion D or V including a poeniomeer. IP : All models fied wih opion P, or wih opion D or V wih poeniomeer. In order o avoid damage, any peneraion of cleaning fluids has o be prevened, since he power supplies are no hermeically sealed. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Isolaion and Proecive Earh The elecric srengh es is performed in he facory as rouine es in accordance wih EN and IEC/EN 69. The company will no honor any warrany claims resuling from incorrecly execued elecric srengh field ess. The resisance beween earh connecion and case (<. Ω) is esed as well. Table : Isolaion Characerisics Inpu o Case + Oupu(s) Oupu(s) o Case Oupu o Oupu Elecric srengh es Facory es s.8.. kvdc AC es volage equivalen o facory es... kvac Insulaion resisance a VDC > > > MΩ Creepage disances. mm According o EN and IEC/EN 69, subassemblies connecing inpu o oupu are preesed wih.6 kvdc or kvac. Tesed a VDC Inpu o oupus: 6. mm Uni Leakage Currens Leakage currens flow due o inernal leakage capaciances and Ycapaciors. The curren values are proporional o he supply volage and are specified in he able below. Table : Earh leakage currens for LK models Characerisics Class I Uni Max. leakage curren Permissible accord. o IEC/EN 69. Typ. value a 6 V, Hz. ma LK Models Operaed a Greaer han 6 Hz Above 6 Hz, he earh leakage curren may exceed. ma, he maximum value allowed in IEC 69. Frequencies Hz only permied wih V i VAC. The builin Ycaps are approved for Hz. Safey approvals and CB scheme cover only 6 Hz. Safey of OperaorAccessible Oupu Circuis If he oupu circui of a DCDC converer is operaoraccessible, i shall be an SELV circui according o he sandard IEC 69. The following able shows some possible insallaion configuraions, compliance wih which causes he oupu circui of he converer o be an SELV circui according o IEC 69 up o a configured oupu volage (sum of nominal volages if in series or +/ configuraion) of 6 V. However, i is he sole responsibiliy of he insaller o assure he compliance wih he rapplicable safey regulaions. VAC or VDC for AK, BK VAC or VDC for CK, DK, EK, FK, LK a Mains ACDC fron end + Baery Fuse Fuse DCDC converer + SELV VAC or VDC for AK, BK VAC or VDC for CK, DK, EK, FK, LK Earh connecion Fig. 8 Schemaic safey concep. Use earh connecions as per he able below. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Table 6: Safey concep leading o an SELV oupu circui Condiions Fron end DCDC converer Resul Nominal supply volage Mains VAC Mains VAC Minimum required grade of insulaion, o be provided by he ACDC fron end, including mains supplied baery charger Funcional (i.e. here is no need for elecrical insulaion beween he mains supply volage and he DCDC converer inpu volage) Nominal DC oupu volage from he fron end V (The nominal volage beween any inpu pin and earh can be up o VAC or DC) V (The nominal volage beween any inpu pin and earh can be up o VAC or VDC) Minimum required safey saus of he fron end oupu circui Primary circui Basic V Unearhed hazardous volage secondary circui Earhed hazardous volage secondary circui Types AK BK CK DK EK FK AK BK CK DK EK FK Measures o achieve he specified safey saus of he oupu circui Double or reinforced insulaion, based on he mains volage and (provided by he DCDC converer) and earhed case Supplemenary insulaion, based on VAC and double or reinforced insulaion (provided by DCDC converer) and earhed case. Double or reinforced insulaion (provided by he DCDC converer) earhed case Double or reinforced 6 V SELV circui Funcional insulaion (provided by he DCDC converer) V TNV circui Basic insulaion (provided by he DCDC converer) The fron end oupu volage should mach he specified inpu volage range of he DCDC converer. Based on he maximum nominal oupu volage from he fron end. The earh connecion has o be provided by he insaller according o he relevan safey sandard, e.g. IEC/EN 69. Earhing of he case is recommended, bu no mandaory. Safey saus of he DCDC converer oupu circui SELV circui If he oupu circui of an ACDC converer is operaoraccessible, i shall be an SELV circui according o sandard IEC 69. The following able shows some possible insallaion configuraions, compliance wih which causes he oupu circui of LK models o be SELV according o IEC 69 up o a configured oupu volage (sum of nominal volages if in series or +/ configuraion) of 6 V. If he LK converer is used as DCDC converer, refer o he previous secion. Mains ~ ~ Earh connecion Fuse Fuse a ACDC converer + SELV Fig. 9 Schemaic safey concep. Use earh connecion as per able 7. Use fuses if required by he applicaion; see also Insal. Insrucions. Table 7: Safey concep leading o an SELV oupu circui Condiions ACDC converer Insallaion Resul Nominal volage Grade of insulaion beween inpu and oupu provided by he ACDC converer Measures o achieve he resuling safey saus of he oupu circui Safey saus of he ACDC converer oupu circui Mains VAC Double or reinforced Earhed case and insallaion SELV circui The earh connecion has o be provided by he insaller according o he relevan safey sandards, e.g. IEC/EN 69. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Descripion of Opions Table 8: Survey of opions Opion Funcion of opion Characerisics 7 Exended operaional ambien emperaure range T A = o 7 C E Elecronic inrush curren limiaion circuiry Acive inrush curren limiaion P Poeniomeer for fine adjusmen of oupu volage Adjusmen range +/ 6% of V o nom, excludes Rinpu D Inpu and/or oupu undervolage monioring circuiry Safe daa signal oupu (D DD) V Inpu and/or oupu undervolage monioring circuiry ACFAIL signal according o VME specificaions (V, V, V) T Curren sharing Inerconnec Tpins for parallel connecion (max converers) K Sandard H Connecor H sandard connecor insead HS for models wih Vo =. V) B, B, B Cooling plae (6 or mm long) Replaces he sandard hea sink, allowing direc chassismouning nong RoHScomplian for subsances Tinlead solder Opion D excludes opion V and vice versa; opion V only for. V oupus. Opion P is no available for baery charger models. 7 Temperaure Range Opion 7 designaes converers wih an operaional ambien emperaure range of o 7 C. No for new designs. E Inrush Curren Limiaion CK/DK/EK/LK models may be supplemened by an elecronic circui (opion E, replacing he sandard builin NTC resisor) o achieve an enhanced inrush curren limiing funcion (no available wih AK/BK/FK ypes). Opion E is mandaory for all CK/DK/ EK/LK models wih opion 9. The figure below shows wo consecuive peaks of he inrush curren, he firs one is caused by V i /R v and he second one by he rising curren across he FET. The shape of he curve depends on model, bu he ables below show he higher of boh peaks. LK models 7b V i /R v I inr [A] Capacior C i fully charged Normal operaion (FET fully conducing) Inpu Filer Conrol FET C i Converer I i = P i /V i R s R S Fig. Block diagram of opion E Curren limiing resisance R v = R s + R S = Ω 9a inr Fig. Inrush curren wih opion E (DC supply) differen wave shapes depending on model [ms] Table 9a: Inrush curren a V i nom (DC supply) and Characerisics CK DK EK LK Uni V o nom Inpu volage 6 V I inr p Peak inrush curren 6. 7..6 A inr Inrush curren duraion 6 ms Table 9b: Inrush curren a V i max (DC supply) and Characerisics CK DK EK LK Uni V o max Inpu volage 8 7 V I inr p Peak inrush curren 9..7.8 A inr Inrush curren duraion ms CK models fied wih opion E and opion D6 (inpu volage monior) mee he sandard ETS for 8 VDC supplies. Opion D6 is necessary o disable he converer a low inpu volage, such avoiding an excessive inpu curren. Connec oupu D (pin ) wih inhibi (pin 8). Opion D6 should be adjused wih he poeniomeer o a hreshold of 6. V for 8 V baeries and o V for 6 V baeries. Refer also o he descripion of opion D. Noe: Subsequen swichon cycles a sarup are limied o max. cycles during he firs s (cold converer) and hen o max. cycle every 8 s. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 6 of
W DCDC and ACDC Converers LK models powered by VAC/ Hz exhibi an inrush curren as per he fig. below, when swiched on a he peak of V i. In his case, he inrush curren I inr p is.7 A and is duraion inr is ms. This is he wors case. If he LK converer is swiched on in a differen momen, I inr p is much lower, bu inr rises up o ms. I i [A] Capacior C i fully charged Normal operaion (FET fully conducing) inr 6a 6 8 [ms] Fig. Inrush curren for LK models wih opion E (AC supply); V i = VAC, f i = Hz, P o = P o nom P Poeniomeer A poeniomeer provides an oupu volage adjusmen range of +/ 6% of V. I is accessible hrough a hole in he fron o nom cover. Opion P is no available for baery charger models and is no recommended for converers conneced in parallel. Opion P excludes he Rfuncion. Wih doubleoupu models, boh oupus are influenced by he poeniomeer seing (doubling he volage, if he oupus are in series). Noe: If he oupu volages are increased above V o nom via R inpu conrol, opion P seing, remoe sensing, or opion T, he oupu curren(s) should be reduced, so ha P o nom is no exceeded. T Curren Sharing This opion ensures ha he oupu currens are approximaely shared beween all parallelconneced converers, hence increasing sysem reliabiliy. To use his faciliy, simply inerconnec he T pins of all converers and make sure ha he reference for he T signal, pin (S or Vo ), are also conneced ogeher. The load lines should have equal lengh and cross secion o ensure equal volage drops. No more han converers should be conneced in parallel. The R pins should be lef opencircui. If no, he oupu volages mus be individually adjused prior o paralleling wihin o % or he R pins should be con neced ogeher. Noe: Parallel connecion of con verers wih opion P is no recom men ded. Vo+ Vo a Load Vo+ Vo Vo+ Vo Fig. Example of poor wiring for parallel connecion (unequal lengh of load lines) BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 7 of
W DCDC and ACDC Converers 6b Vo+ 7b Vo+ Power bus + Converer S+ T S Vo Converer Vo T Vo+ Vo Converer Vo+ S+ T S Vo Load Converer Vo+ Vo T Vo+ Vo Load Max. converers in parallel connecion Lead lines should have equal lengh and cross secion, and should run in he same cable loom. Diodes recommended in redundan operaion only Max. converers in parallel connecion Fig. Parallel connecion of singleoupu models using opion T wih he sense lines conneced a he load Fig. Parallel connecion of doubleoupu models wih he oupus conneced in series, using opion T. The signal a he T pins is referenced o Vo. D Undervolage Monior The inpu and/or oupu undervolage monior operaes in dependenly of he builin inpu undervolage lockou circui. A logic low signal (oupu wih selfconducing JFET) or high signal (NPN opencollecor oupu) is generaed a he D oupu (pin ), when one of he moniored volages drops below he preseleced hreshold level V. This signal is referenced o S /Vo. The D oupu recovers, when he moniored volages exceed V + V h. The hreshold levels V i and V o are eiher adjused by a poenio meer, accessible hrough a hole in he fron cover, or adjused in he facory o a fixed value specified by he cusomer. Opion D exiss in various versions D DD, as shown in able. D and D9 are adjused according o cusomer s reques and receive a cusomerspecific model number. Oupu ype Monioring Minimum adjusmen range of hreshold level V Typ. hyseresis V ho [% of V ] for V min V max Number of poeniomeers JFET NPN V i V o or V o V i V o V hi V ho D D no yes. V V o BR..6 V D D6 yes no V i min.. V D D7 yes yes V i min (.9.98 V o ).. V D D8 no yes (.9.98 V o ) D D9 no yes. V V o BR..6 V yes no V i min,.. V yes yes V i min,. V V o BR,.. V..6 V yes yes V i min, (.9.98 V o ).. V DD yes yes V i min. V V o BR.. V..6 V Threshold level adjusable by poeniomeer; see Elecrical Oupu Daa for V o BR. Fixed value. Tracking if V o /V o is adjused via Rinpu, opion P, or sense lines. The hreshold level permanenly adjused according o cusomer specificaion ±% a C. Any value wihin he specified range is basically possible, bu causes a special ype designaion in addiion o he sandard opion designaions (D/D9). See Elecrical Oupu Daa for V o BR. Adjusmen a. Cusomerspecific par number BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 8 of
W DCDC and ACDC Converers JFET oupu (D D): Pin D is inernally conneced via he drainsource pah of a JFET (selfconducing ype) o he negaive poenial of oupu. V D. V (logic low) corresponds o a moniored volage level (V i and/or V o ) <V. The curren I D hrough he JFET should no exceed. ma. The JFET is proeced by a. W Zener diode of 8. V agains exernal overvolages. NPN oupu (D DD): Pin D is inernally conneced via he collecoremier pah of a NPN ransisor o he negaive poenial of oupu. V D <. V (logic low) corresponds o a moniored volage level (V i and/or V o ) > V + V h. The curren I D hrough he open collecor should no exceed ma. The NPN oupu is no proeced agains exernal overvolages. V D should no exceed V. Table : JFET oupu (D D) Table : NPN oupu (D DD) V b, V o saus D oupu, V D V b, V o saus D oupu, V D V b or V o < V low, L, V D. V a I D =. ma V b or V o < V high, H, I D µa a V D = V V b and V o > V + V h high, H, I D µa a V D =. V V b and V o > V + V h low, L, V D. V a I D = ma 6a 7a Vo+/Vo+ Vo+/Vo+ R p R p I D I D Inpu Selfconducing juncion FET D Inpu NPN open collecor D V D V D S /Vo Fig. 6 Opion D D: JFET oupu, I D. ma S /Vo Fig. 7 Opion D DD: NPN oupu, V o, I D. ma Threshold olerances and hyseresis: If V i is moniored, he inernal inpu volage afer he inpu filer is measured. Consequenly his volage differs from he volage a he connecor pins by he volage drop V i across he inpu filer. The hreshold levels of he D and D9 opions are facory adjused a nominal oupu curren and T A = C. The value of V i depends upon inpu volage range (CK, DK,..), hreshold level V, emperaure, and inpu curren. The inpu curren is a funcion of he inpu volage and he oupu power. V D V i V hi a V D high P o = P o = P o nom P o = P o = P o nom V D low V i V i Fig. 8 Definiion of V i, V i and V hi (JFET oupu) Table : Doupu logic signals Version of D V i < V or V o < V V i > V + V h or V o > V Configuraion D, D, D, D, D low high JFET D, D6, D7, D8, D9, DD high low NPN BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page 9 of
W DCDC and ACDC Converers Inpu volage monioring NPN V D V D high 8a V D low I D I D high JFET I D low V D V D high V D low h low min low min low min high min V o V o nom.9 h V i [VDC] V i +V hi V i Inpu volage failure Swichon cycle Inpu volage sag Swichon cycle and subsequen inpu volage failure Oupu volage monioring NPN V D V D high JFET V D low I D I D high I D low V D V D high Holdup ime see Elecrical Inpu Daa Wih oupu volage monioring, holdup ime h = The signal remains high, if he D oupu is conneced o an exernal source low min = 7 ms, yp. ms V D low V o V o nom V o +V ho low min V o Oupu volage failure Fig. 9 Relaionship beween V i, V o, V D, V o /V o nom versus ime Table : Opion V: Facory poeniomeer seing of V i wih resuling holdup ime Model AK BK FK CK DK EK LK Uni V i 9. 9. 9 9 6 97 VDC h......7. ms BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers V ACFAIL signal (VME) Available for unis wih V o nom =. V only. This opion defines an undervolage monioring circui for he inpu or for he inpu and main oupu volage (. V) similar o opion D and generaes an ACFAIL signal (V signal), which conforms o he VME sandard. The low sae level of he ACFAIL signal is specified a a sink curren of I V 8 ma o V V.6 V (opencollecor oupu of an NPN ransisor). The pullup resisor feeding he opencollecor oupu should be placed on he VME back plane. Afer he ACFAIL signal has gone low, he VME sandard requires a holdup ime h of a leas ms, before he. V oupu drops o.87 V, when he oupu is fully loaded. This holdup ime h is provided by he inernal inpu capaciance. Consequenly he working inpu volage and he hreshold level V i should be adequaely above V i min of he converer, so ha enough energy is remaining in he inpu capaciance. If V i is below he required level, an exernal holdup capacior (C i ex ) should be added; refer o he formulas below: P o ( h +. ms) V i = + V i min C i min η P o ( h +. ms) C i ex = C i min η (V i V i min ) where as: C i min = inernal inpu capaciance [mf]; see able C i ex = exernal inpu capaciance [mf] P o = oupu power [W] η = efficiency [%] h = holdup ime [ms] V i min = minimum inpu volage [V] V i = hreshold level [V] V i min see Elecrical Inpu Daa. For oupu volages V o > V o nom, V i min increases proporionally o V o /V o nom. Noe: Opion V and V can be adjused by he poeniomeer o a hreshold level beween V i min and V i max. A decoupling diode should be conneced in series wih he inpu of AK FK converers o avoid he inpu capaciance discharging hrough oher loads conneced o he same source volage. Table : Undervolage monior funcions Opion Monioring Minimum adjusmen range of hreshold level V Typical hyseresis V h [% of V ] for V min V max V i V o or V o V i V o V hi V ho V yes no V i min.. V V yes yes V i min.9.98 V o.. V V yes no V i min,.. V yes yes V i min,.9.98 V o.. V Threshold level adjusable by poeniomeer. Fixed value beween 9% and 98.% of V o (racking). Adjused a. Fixed value, resisoradjused (±% a C) accord. o cusomer s specificaion; individual ype number is deermined by he company. Opion V operaes independenly of he builin inpu under volage lockou circui. A logic low signal is generaed a pin, as soon as one of he moniored volages drops below he pre seleced hreshold level V. The reurn for his signal is S. The V oupu recovers, when he moniored volages exceed V + V h. The hreshold level V i is eiher adjusable by a poeniomeer, accessible hrough a hole in he fron cover, or adjused in he facory o a deermined cusomerspecific value. Refer o able 6. V oupu (V, V, V): Pin V is inernally conneced o he open collecor of an NPN ransisor. The emier is conneced o S. V V.6 V (logic low) corresponds o a moniored volage level (V i and/or V o ) <V. I V should no exceed ma. The V oupu is no proeced agains exernal overvolages: V V should no exceed 6 V. Threshold olerances and hyseresis: If V i is moniored, he inernal inpu volage is measured afer he inpu filer. Consequenly his volage differs from he volage a he connecor pins by he volage drop V i across he inpu filer. The hreshold level of opion V is adjused in he facury a and T A = C. The value of V i depends upon he inpu volage range (AK, BK, ec.), hreshold level V, emperaure, and inpu curren. The inpu curren is a funcion of inpu volage and oupu power. Table 6: NPNoupu (V, V, V) V i, V o saus V i or V o < V V i and V o > V + V h V oupu, V v low, L, V V.6 V a I V = ma high, H, I V µa a V V =. V BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers Vo+ 9a V V V i V hi I V R p V V high a Inpu NPN open collecor V V V P o = P o = P o nom P o = P o = P o nom S Fig. Oupu configuraion of opions V, V and V V V low Fig. Definiion of V i, V i and V hi V i V i Inpu volage monioring V V V V V high low min low min low min a V V low V V V V V high low min low min V V low V o. V.87 V h h. V V i [VDC] V i + V hi V i Inpu volage failure Swichon cycle Inpu volage sag Swichon cycle and subsequen inpu volage failure Oupu volage monioring V V V V V high V V low V V V V V high V V low V o. V.87 V low min VME reques: minimum ms low min = ms, yp 8 ms V V level no defined a V o <. V The V signal drops simulaneously wih V o, if he pullup resisor R P is conneced o Vo+; he V signal remains high if R P is conneced o an exernal source.. V V i V i + V hi V i Oupu volage failure Fig. Relaionship beween V b, V o, V D, V o /V o nom versus ime BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
W DCDC and ACDC Converers K Sandard H Connecor Opion K is available only for. V oupu models in order o avoid he connecor wih high curren conacs. Efficiency is approx..% worse. B, B, B Cooling Plae Where a cooling surface is available, we recommend he use of a cooling plae insead of he sandard hea sink. The mouning sysem should ensure ha he maximum case emperaure T C max is no exceeded. The cooling capaciy is calculaed by (η see Model Selecion): (% η) P Loss = V o I o η For he dimensions of he cooling plaes, see Mechanical Daa. Opion B is for cusomerspecific models wih elongaed case (for mm DINrack deph). G RoHS RoHScomplian for all six subsances. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
K Series W DCDC and ACDC Converers Accessories A variey of elecrical and mechanical accessories are available including: Fron panels for 9 DINrack: Schroff or Inermas, TE / U; see fig.. Maing H connecors wih screw, solder, fason, or pressfi erminals, code key sysem and coding wedges HZZG; see fig.. Pair of connecor reenion clips HZZ9G; see fig. Connecor reenion brackes HZZ6G; see fig. 6 Cage clamp adaper HZZG; see fig. 7 Differen cable hoods for H connecors (fig. 8): HZZG, screw version HZZG, use wih reenion brackes HZZ8G HZZG, meallic version providing fire proecion Chassis or wallmouning plae K (HZZG) for models wih opion B. Maing connecor (HZZ7G) wih screw erminals; see fig. 9 DINrail mouning assembly HZZ6G (DMBK/S); see fig. Addiional exernal inpu and oupu filers Differen baery sensors SKSMH... for using he converer as a baery charger. Differen cell characerisics can be seleced; see fig., able 7, and Baery Charging / Temperaure Sensors. For addiional accessory produc informaion, see he accessory daa shees lised wih each produc series or individual model a our web sie. Fig. Differen maing connecors Fig. Differen fron panels Fig. Connecor reenion clips o fasen he H connecor o he rear plae; see fig.. HZZ9G consiss of clips. o Ncm Fig. 6 Connecor reenion brackes HZZ6G (CRBHKMS) Fig. 7 Cage clamp adaper HZZG BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of
K Series W DCDC and ACDC Converers Fig. 8 Differen cable hoods Fig. 9 Chassis or wallmouning plae HZZG (Mouning plae K) European Projecion 9.8 (.") 6 (.") 9a L 6 (.") L = m (sandard lengh) oher cable lenghs on reques Fig. DINrail mouning assembly HZZ6G (DMBK/S) adhesive ape Fig. Baery emperaure sensor Table 7: Baery emperaure sensors Baery volage nom. [V] Sensor ype Cell volage [V] Cell emp. coefficien [mv/k] Cable lengh [m] SKSMH.7.7. SKSMH.7.7. SKSMH.7.7. SKSMH.7.7. SKSMH.... SKSMH... SKSMH... 8 SKSMH8.7.7. 8 SKSMH87.7. Noe: Oher emperaure coefficiens and cable lenghs are available on reques. NUCLEAR AND MEDICAL APPLICATIONS These producs are no designed or inended for use as criical componens in life suppor sysems, equipmen used in hazardous environmens, or nuclear conrol sysems. TECHNICAL REVISIONS The appearance of producs, including safey agency cerificaions picured on labels, may change depending on he dae manufacured. Specificaions are subjec o change wihou noice. BCDG Rev AG, 9Jul8 8 Bel Power Soluions & Proecion Page of