150 Watt AC-DC Converters with PFC K-Series

Transcription

1 Cassee Syle 5 Wa AC-DC Converers K Series PFC 5 Wa AC-DC Converers wih PFC K-Series Inpu volage range from V AC or isolaed oupus up o 8 V DC kv AC I/O elecric srengh es volage Universal inpu volage range Power facor >.95, harmonics <IEC/EN 6-3- Inpu over- and undervolage lock-ou Efficien inpu filer and buil-in surge and ransien suppression circuiry Fully isolaed oupus Oupus overload, open- and shor-circui proof No deraing over enire operaing emperaure range Safey according o IEC/EN 695 LGA." 3 U Summary The K /5-series of AC-DC converers represens a flexible range of power supplies for use in advanced elecronic sysems. Feaures include full power facor correcion, high efficiency, high reliabiliy, low oupu volage noise and excellen dynamic response o load/line changes. The converer inpus are proeced agains surges and ransiens occurring a he source lines. An inpu over- and undervolage lock-ou circuiry disables he oupus if he inpu volage is ouside he specified ranges. Inrush curren limiaion is included prevening circui breakers and fuses from being damaged a swich-on. All oupus are overload, open- and shor-circui proof and are proeced agains overvolages by means of a buil-in suppressor diode. The oupus can be inhibied by a logic signal applied o he connecor pin 8 (i). If he 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 visual monioring of he sysem a any ime. Full inpu o oupu, inpu o case, oupu o case and oupu o oupu isolaion is provided. The modules are designed and buil according o he inernaional safey sandards IEC/EN 695 and have been approved by he safey 8 3." 6 TE " agencies LGA (Germany) and UL (USA). The UL Mark for Canada has been officially recognized by regulaory auhoriies in provinces across Canada. The case design allows operaion a nominal load up o 7 C in a free air ambien emperaure. If forced cooling is provided, he ambien emperaure may exceed 7 C bu he case emperaure mus remain below 95 C under all condiions. A emperaure sensor generaes an inhibi signal which disables he oupus if he case emperaure T C exceeds he limi. The oupus are auomaically re-enabled when he emperaure drops below he limi. Various opions are available o adap he converers o individual applicaions. The modules may eiher be plugged ino 9 inch rack sysems according o DIN 9, or be chassis mouned. Imporan: These producs are inended o replace he LK and LK in order o comply wih IEC/EN Table of Conens Page Summary... Type Survey and Key Daa... Type Key... Funcional Descripion... 3 Elecrical Inpu Daa... Elecrical Oupu Daa... 6 Auxiliary Funcions... Page Elecromagneic Compaibiliy (EMC)... 6 Immuniy o Environmenal Condiions... 7 Mechanical Daa... 8 Safey and Insallaion Insrucions... 9 Descripion of Opions... Accessories... 8 Ediion /. /8

2 Cassee Syle 5 Wa AC-DC Converers K Series PFC Type Survey and Key Daa Non sandard inpu/oupu configuraions or special cusom adapions are available on reques. See also: Commercial Informaion: Inquiry Form for Cusomized Power Supply. Efficiency a U Table : Type survey LK i nom and I o nom. If he oupu volages are increased Oupu Oupu Inpu volage range and efficiency Opions above U o nom via R-inpu conrol, opion P seing, remoe sensing or opion T, he oupu currens mus be U o nom I o nom U o nom I o nom U i min...u i max h min [V DC] [A] [V DC] [A] V AC 7 [%] reduced accordingly so ha P o nom is LK 3-6R no exceeded LK 3-7R 85 E 3 Series connecion of oupu and LK 5-7R 85 D see: R-Funcion for differen oupu LK 6-7R 86 V 5 configuraions.. 3 P Second oupu semi-regulaed LK 53-7R T 5 Opion V for K 3 ypes only LK 55-7R B 6 LK 3-6R ypes are specified for a LK 566-7R 8 max. ambien emperaure T A = 6 C B. 6.. and a max. case emperaure T 6. LK 53-7R 83 C = C. (see: Oupu power deraing). 5. LK 55-7R LK 566-7R 8 7 For DC-inpu please ask your local Power-One parner. Type Key Type Key L K E R P D V T B Inpu volage range U i : V AC... L Series... K Number of oupus ( for single, 5 for double oupus)...5 Single oupu unis: Nominal volage oupu (main oupu), U o nom 5. V...,, V V..., 5 V... 6 oher volages... 7, 8 Oher specificaions for single oupu modules Symmerical double oupu unis: Nominal volage oupu /oupu, U o/ nom V/ V ( V series connecion)... 5 V/5 V (3 V series connecion)... V/ V (8 V series connecion)... 6 oher symmerical volages Operaional ambien emperaure range T A : 5 7 C C C cusomer specific Auxiliary funcions and opions: Inrush curren limiaion... E Oupu volage conrol inpu... R Poeniomeer (oupu volage adjusmen).. P Save daa signal (D...DD, o be specified) D 3 ACFAIL signal (V, V3)... V 3, Curren sharing... T Cooling plae sandard case... B Cooling plae for long case mm... B Exernal wiring of main and second oupu depending upon he desired oupu configuraion (see: R-Funcion for differen oupu configuraions. Feaure R excludes opion P and vice versa. 3 Opion D excludes opion V and vice versa. Opion V for LK ypes wih 5 V oupus. Example: LK 55-7PD3: Power facor correced AC-DC converer, inpu volage range V AC, double oupu, each providing 5 V/5 A, equipped wih poeniomeer and undervolage monioring opion. Ambien emperaure C. Ediion /. /8

3 Cassee Syle 5 Wa AC-DC Converers K Series PFC Funcional Descripion The inpu volage is fed via an inpu fuse, an inpu filer, a recifier and an inrush curren limier o a single ransisor boos converer. This converer provides a sinusoidal inpu curren (IEC/EN 6-3-, class D equipmen) and sources a capacior wih a volage of VDC. This capacior sources a single ransisor forward converer. Each oupu is powered by a separae secondary winding on he main ransformer. The resulan volages are recified and heir ripples smoohed by a power choke and an oupu filer. The conrol logic senses he main oupu volage U o and generaes, wih respec o he maximum admissible oupu currens, he conrol signal for he primary swiching ransisor. The second oupu of double oupu unis is conrolled by he main oupu bu has independen curren limiing. If he main oupu is driven ino curren limiaion, he second oupu volage will fall as well and vice versa. P 3 6 N 8 P~ Inpu filer Y Y Boos converer (PFC) C i + 36 V DC Forward converer (approx. 8 khz) Y Y Conrol circui Oupu filer 6 R 8 i D/V T S+ Vo+ 6 8 Vo S Fig. Block diagram of single oupu converers LK + P 3 N~ P~ Inpu filer Y Y Boos converer (PFC) C i + 36 V DC Forward converer (approx. 8 khz) Y Y Y Conrol circui Y Oupu filer Oupu filer 6 8 Vo+ 6 8 R i D T Vo Vo+ Vo Fig. Block diagram of symmerical double oupu converers LK 5 + Transien suppressor (VDR). Inrush curren limier (NTC or opion E), -9 versions exclude he NTC. 3 Inpu fuse. Hold-up capacior. Ediion /. 3/8

4 Cassee Syle 5 Wa AC-DC Converers K Series PFC Elecrical Inpu Daa General Condiions T A = 5 C, unless T C is specified. Pin 8 conneced o pin, U o adjused o U o nom (opion P); R inpu no conneced. Sense line pins S+ and S conneced o Vo+ and Vo respecively. Table : Inpu daa Inpu LK Characerisics Condiions min yp max Uni U i Operaing inpu volage I o = I o nom V AC 3, Nominal inpu volage T C min T C max 3 U i nom I i Inpu curren U i nom, I o nom.8 A rms P i o No-load inpu power U i min U i max 9. W P i inh Idle inpu power uni inhibied R i Inpu resisance T C = 5 C 8 mω R NTC NTC resisance 3 C i Inpu capaciance 8 µf U i RFI Conduced inpu RFI EN 55 B Radiaed inpu RFI U i nom, I o nom B U i abs Inpu volage limis V DC (wihou damage) V P Wih double oupu modules, boh oupus loaded wih I o nom. Valid for -7, -6, versions wih NTC, (-9 versions exclude he NTC). Iniial swich-on cycle. Subsequen swich-on/off cycles increase he inrush curren peak value. 3 AC frequency range Hz. For DC-inpu please ask your local Power-One parner Inpu Fuse A fuse mouned inside he converer proecs he module agains severe defecs. (If operaed from a DC-source his fuse may no fully proec he module when he inpu volage exceeds V DC! In applicaions where he converers operae a source volages above V DC an exernal fuse or a circui breaker a sysem level should be insalled!) Table 3: Fuse Specificaion Module Fuse ype Fuse raing LK/5 slow-blow SP T A, 5 V Fuse size 5 mm Inpu Under-/Overvolage Lock-ou If he inpu volage remains below approx. 65 V AC or exceeds approx. 8 V AC an inernally generaed inhibi signal disables he oupu(s). When checking his funcion he absolue maximum inpu volage raing U i abs should be considered! Beween U i min and he undervolage lock-ou level he oupu volage may be below he value defined in able: Oupu daa (see: Technical Informaion: Measuring and Tesing). Inpu Transien Proecion A VDR ogeher wih he inpu fuse and a symmerical inpu filer form an effecive proecion agains high inpu ransien volages. Reverse Polariy Proecion Should he inpu volage o he uni be supplied from a DC source he buil-in bridge recifier provides reverse polariy proecion. Inrush Curren Limiaion The modules of he versions -7, -6, incorporae an NTC resisor in he inpu circuiry which - a iniial urn on - reduces he peak inrush curren value by a facor of 5... o proec connecors and swiching devices from damage. Subsequen swich-on cycles wihin shor periods will cause an increase of he peak inrush curren value due o he warming-up of he NTC resisor. See also: E opion. Inrush Curren Peak Value The inrush curren peak value (iniial swich-on cycle) can be deermined by following calculaion: U i rms I inr p = (R s ex + R i + R NTC ) U i rms R s ex I inr p R i R NTC Fig. 3 Equivalen circui diagram for inpu impedance C i Ediion /. /8

5 Cassee Syle 5 Wa AC-DC Converers K Series PFC Inpu Inrush Curren Characerisic Saic Inpu curren Characerisic I inr [A] U i = 55 V rms U i = 5 V rms l i [A rms ] Fig. 6 Inpu curren versus inpu volage a I o nom U i [V AC] 3 [ms] Fig. Theoreical inpu inrush curren versus ime a U i 55 V rms and 5 V rms, R ex = Harmonic Currens The harmonic disorion is well below he limis specified in IEC/EN 6-3-, class D. Ii [ma/w] Limi class D according o IEC/EN 6-3- Power Facor, Harmonics Power facor correcion is achieved by conrolling he inpu curren waveform synchronously wih he inpu volage waveform. The power facor conrol is acive under all operaing condiions. Power Facor U i = 3 V AC U i = 85 V AC Harm. Fig. 5 Harmonic currens a he inpu, IEC/EN 6-3-, class D. U i = U i nom, I o = I o nom I o /I o nom Fig. 7 Power facor versus oupu power a U i 3 V AC and 85 V AC. Ediion /. 5/8

6 Cassee Syle 5 Wa AC-DC Converers K Series PFC Elecrical Oupu Daa General Condiions T A = 5 C, unless T C is specified. Pin 8 (i) conneced o pin (S /Vo ), U o adjused o U o nom (opion P), R inpu no conneced. Sense line pins (S+) and (S ) conneced o (Vo+) and 8 (Vo ) respecively. Table a: Oupu daa single oupu modules Oupu LK 3-6 LK 3 LK 5 LK 6 5. V. V 5. V. V Characerisics Condiions min yp max min yp max min yp max min yp max Uni U o Oupu volage U i nom, I o nom V U o P Overvolage proecion I o nom Oupu curren U i min...u i max A T C min...t C max I ol Oupu curren limi U i min...u i max u 7 o Oupu Low frequency U i nom, I o nom mv pp volage IEC/EN 6 Swiching freq. noise BW = MHz Toal 5 5 DU o u Saic line regulaion U i min...u i nom, ±5 ± ±5 ± mv U i nom...u i max I o nom DU o I Saic load regulaion U i nom, I o = 3 8 (...) I o nom u 5 o d Dynamic Volage U i nom ±7 ±5 ±5 ± load deviaion I o nom / I o nom 5 d regulaion Recovery IEC/EN ms ime a Uo Temperaure coefficien T C min...t C max mv/k of oupu volage 6...I o nom If he oupu volages are increased above U o nom hrough R-inpu 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: Typical Oupu Volage Regulaion of Single or Double Oupu Modules wih Oupus and Conneced in Series. 5 See: Typical dynamic load regulaion of U o and U o. 6 Negaive emperaure coefficien (... 3 mv/cell and K) available on reques. 7 Measured according o IEC/EN 6 sub clause 3. wih a probe acc. o annex A of he same sandards. (See: Technical Informaion: Measuring and Tesing.) Ediion /. 6/8

7 Cassee Syle 5 Wa AC-DC Converers K Series PFC Table b: Oupu daa double oupu modules Oupu LK 53 LK 55 LK 566 (Oupus conneced in Series) V ( V) 3 V ( 5 V) 8 V ( V) Characerisics Condiions min yp max min yp max min yp max Uni U o Oupu volage U i nom, I o nom V U o P Overvolage proecion I o nom Oupu curren U i min...u i max A T C min...t C max I ol Oupu curren limi U i min...u i max u 7 o Oupu Low frequency U i nom, I o nom mv pp volage IEC/EN 6 Swiching freq. 5 5 noise 3 BW = MHz Toal 8 DU o U Saic line regulaion U i min...u i nom ± ±5 ± mv U i nom...u i max I o nom DU o I Saic load regulaion U i nom, I o = (...) I o nom u 5 o d Dynamic Volage U i nom ±5 ± ±5 load deviaion I o nom / I o nom 5 d regulaion Recovery IEC/EN ms ime a Uo Temperaure coefficien T C min...t C max...6 mv/k of oupu volage 6...I o nom If he oupu volages are increased above U o nom hrough R-inpu conrol, opion P seing, remoe sensing or opion T, he oupu currens should be reduced accordingly so ha P o nom is no exceeded. Series connecion for U o nom = V, 3 V or 8 V, see: R-Funcion for differen oupu configuraions. 3 Shores possible wiring for series connecion a he connecor. See: Typical Oupu Volage Regulaion of Single or Double Oupu Modules wih Oupus and Conneced in Series. 5 See: Typical dynamic load regulaion of U o and U o. 6 Negaive emperaure coefficien (... 3 mv/cell and K) available on reques. 7 Measured according o IEC/EN 6 sub clause 3. wih a probe acc. o annex A of he same sandards. (See: Technical Informaion: Measuring and Tesing.) Ediion /. 7/8

8 Cassee Syle 5 Wa AC-DC Converers K Series PFC Table c: Oupu daa double oupu modules Oupu LK 53 LK 55 (Oupus independenly loaded) V/ V 5 V/5 V Characerisics Condiions Oupu Oupu Oupu Oupu min yp max min yp max min yp max min yp max Uni U o Oupu volage U i nom, I o nom V U o P Overvolage proecion 9 9 I o nom Oupu curren 3 U i min...u i max A T C min...t C max I ol Oupu curren limi U i min...u i max u 8 o Oupu Low frequency U i nom, I o nom mv pp volage IEC/EN 6 Swiching freq. noise BW = MHz Toal 8 DU o U Saic line regulaion U i min...u i nom ± ± ±5 ±5 mv U i nom...u i max I o nom DU o I Saic load regulaion U i nom, I o = (...) I 5 o nom u 6 o d Dynamic Volage U i nom ± ± load deviaion I o nom / I o nom 6 d regulaion Recovery IEC/EN ms ime a Uo Temperaure coefficien T C min...t C max.5.5 mv/k of oupu volage 7...I o nom Depending upon he desired oupu configuraion he wiring should be made as shown in: R-Funcion for differen oupu configuraions. Same condiions for boh oupus. 3 If he oupu volages are increased above U o nom via R-inpu 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: Typical Oupu Volage Regulaion of Single or Double Oupu Modules wih Oupus and Conneced in Series. 5 Condiion for specified oupu. Oher oupu loaded wih consan curren I o = I o nom. See fig.: Oupu volage regulaion of double oupu unis. 6 See: Typical dynamic load regulaion of U o and U o. 7 Negaive emperaure coefficien (... 3 mv/cell and K) available on reques. 8 Measured according o IEC/EN 6 sub clause 3. wih a probe acc. o annex A of he same sandards. (see: Technical Informaion: Measuring and Tesing) Ediion /. 8/8

9 Cassee Syle 5 Wa AC-DC Converers K Series PFC Table d: Oupu daa double oupu modules Oupu LK 566 (Oupus independenly loaded) V/ V Characerisics Condiions Oupu Oupu min yp max min yp max Uni U o Oupu volage U i nom, I o nom V U o P Overvolage proecion I o nom Oupu curren 3 U i min...u i max A T C min...t C max I ol Oupu curren limi U i min...u i max u 8 o Oupu Low frequency U i nom, I o nom 3 3 mv pp volage IEC/EN 6 Swiching freq. noise BW = MHz Toal DU o U Saic line regulaion U i min...u i nom, ± ± mv U i nom...u i max, I o nom DU o I Saic load regulaion U i nom, I o = 96 5 (...) I 5 o nom u 6 o d Dynamic Volage U i nom, I o = ±8 load deviaion I o nom / I o nom 6 d regulaion Recovery IEC/EN 6.3 ms ime a Uo Temperaure coefficien T C min...t C max.5 mv/k of oupu volage 7...I o nom Depending upon he desired oupu configuraion he wiring should be made as shown in: R-Funcion for differen oupu configuraions. Same condiions for boh oupus. 3 If he oupu volages are increased above U o nom via R-inpu 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: Typical Oupu Volage Regulaion of Single or Double Oupu Modules wih Oupus and Conneced in Series. 5 Condiion for specified oupu. Oher oupu loaded wih consan curren I o = I o nom. See fig.: Oupu volage regulaion of double oupu unis. 6 See: Typical dynamic load regulaion of U o and U o. 7 Negaive emperaure coefficien (... 3 mv/cell and K) available on reques. 8 Measured according o IEC/EN 6 sub clause 3. wih a probe acc. o annex A of he same sandards. (See: Technical Informaion: Measuring and Tesing.) Ediion /. 9/8

10 Cassee Syle 5 Wa AC-DC Converers K Series PFC Thermal Consideraions If a converer is locaed in free, quasi-saionary air (convecion cooling) a he indicaed maximum ambien emperaure T A max (see able: Temperaure specificaions) 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 warm-up phase. However, he relaionship beween T A and T C depends heavily on 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. 85 C) if T C max is no exceeded. For -7 or -9 unis a an ambien emperaure T A of 85 C wih only convecion cooling, he maximum permissible curren for each oupu is approx. % of is nominal value as per figure. I is recommended ha coninuous operaion under simulaneous exreme wors case condiions of he following hree parameers be avoided: Minimum inpu volage, maximum oupu power and maximum emperaure. -6 versions have reduced T A and T C I o /I o nom convecion cooling forced cooling T C max T A min T A [ C] Fig. 8 Oupu curren deraing versus emperaure for 7 and 9 unis. Thermal Proecion A emperaure sensor generaes an inernal inhibi signal which disables he oupus if he case emperaure exceeds T C max. The oupus are auomaically re-enabled if he emperaure drops below his limi. Oupu Proecion Each oupu is proeced agains overvolage which could occur due o a failure of he conrol circui by means of a volage suppressor diode which, under wors case condiions, may become a shor circui. The suppressor diodes are no designed o wihsand exernally applied overvolages. Overload a any of he wo oupus will cause a shu-down of boh oupus. A red LED indicaes he overload condiion. Parallel or Series Connecion of Unis Single or double oupu unis wih equal nominal oupu volage can be conneced in parallel wihou any precauions using opion T. Wih opion T (curren sharing), all unis share he curren approximaely equally. Single oupu unis and/or main and second oupus of double oupu unis can be conneced in series wih any oher (similar) oupu. Noe: Parallel connecion of double oupu unis should always include boh, main and second oupu o mainain good regulaion of boh oupus. No more han 5 unis 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 if several oupus are conneced in series. Efficiency versus Load Efficiency U i = 3 V AC U i = 85 V AC I o /I o nom Fig. 9 Efficiency versus load a U i ; 3 V AC and 88 V AC Swiching Frequency versus Load Frequency [khz] load [I o /I o nom ] Fig. Swiching frequency versus load. (The boos converer a he inpu sage has a fixed frequency of khz) Ediion /. /8

11 Cassee Syle 5 Wa AC-DC Converers K Series PFC Oupu Volage Regulaion of Double Oupu Modules Oupu is under normal condiions regulaed o U o nom, independen of he oupu currens. U o is dependen upon he load disribuion. If boh oupus are loaded wih more han % of I o nom, he deviaion of U o remains wihin ±5% of he value of U o. The following 3 figures show he regulaion wih varying load disribuion. If I o = I o or he wo oupus are conneced in series, he deviaion of U o remains wihin ±% of he value of U o provided ha a oal load of more han % of I o nom is applied. Two oupus of a single K 5 module conneced in parallel will behave like he oupu of a K module; he paralleled oupu is fully regulaed. No precauions are necessary in using he R-inpu and he es sockes. [V] U o I o =% I o = 5% I o = % Oupu Volage Regulaion of Single or Double Oupu Modules wih Oupus and Conneced in Series U o U o nom Fig. U o vs. I o (yp.) of single oupu unis Dynamic Load Regulaion U o U od U r I o I ol I o I o nom 55 U r I o/ I o nom Fig. LK 53: DU o (yp.) vs. I o wih differen I o U o U od d U od d [V] U o I o = % I o = 5% I o = % I o /I o nom I o /I o nom.5 < µs < µs Fig. 5 Typical dynamic load regulaion of U o and U o I o /I o nom Fig. LK 55: DU o (yp.) vs. I o wih differen I o [V] U o I o = % I o = 5% I o = % I o /I o nom Fig. 3 LK 566: DU o (yp.) vs. I o wih differen I o Hold-up Time versus Oupu Power ime [ms] I o /I o nom Fig. 6 Hold-up ime h versus oupu power Ediion /. /8

12 Cassee Syle 5 Wa AC-DC Converers K Series PFC Auxiliary Funcions i Inhibi for Remoe On and Off Noe: Wih open i inpu: Oupu is disabled (U o = off). The oupus of he module may be enabled or disabled by means of a logic signal (TTL, CMOS, ec.) applied beween he inhibi inpu i and he negaive pin of oupu (Vo ). In sysems wih several unis, his feaure can be used, for example, o conrol he acivaion sequence of he converers. If he inhibi funcion is no required, connec he inhibi pin 8 o pin o enable he oupus (acive low logic, fail safe). For oupu response refer o: Hold-up Time and Oupu Response. Vi+ Vi Fig. 7 Definiion of U inh and I inh. I inh [ma] U inh =.8 V U o = on Table 5: Inhibi characerisics Vo+ Vo Characerisic Condiions min yp max Uni U inh Inhibi U o = on U i min U i max 5.8 V volage Uo = off. 5 I inh Inhibi curren U inh = µa r Rise ime 3 ms f Fall ime depending on I o i I inh U inh =. V U inh U o = off Fig. 8 Typical inhibi curren I inh versus inhibi volage U inh U inh [V] U o /U o nom. r f Inhibi Fig. 9 Oupu response as a funcion of inhibi conrol 6 Sense Lines (Only for single oupu unis 5. V, V, 5 V, V) This feaure enables for compensaion of volage drops across he connecor conacs and if necessary, across he load lines. If he sense lines are conneced a he load raher han direcly a he connecor, he user should ensure ha U o max (beween Vo+ and Vo ) is no exceeded. We recommend connecing he sense lines direcly a he female connecor. For furher informaion, please refer o: Applicaion Noes. To ensure correc operaion, boh sense lines (S+ and 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 pin (as measured on he connecor) should no exceed he following values: Table 6: Maximum Volage compensaion allowed using sense lines Oupu Toal volage difference Volage difference volage beween sense lines and beween heir respecive oupus Vo and S 5. V <.5 V <.5 V V, 5 V <. V <.5 V If he oupu volages are increased above U o nom via R-inpu conrol, opion P seing, remoe sensing or opion T, he oupu currens mus be reduced accordingly so ha P o nom is no exceeded. Imporan: The oupu erminals Vo+ and Vo mus always be conneced o he load before connecing he sense lines S+ and S, oherwise he uni will be damaged. Ediion /. /8

13 Cassee Syle 5 Wa AC-DC Converers K Series PFC Programmable Oupu Volage (R-Funcion) As a sandard feaure, he modules offer an adjusable oupu volage, idenified by leer R in he ype designaion. The conrol inpu R (pin 6) acceps eiher a conrol volage U ex or a resisor R ex o adjus he desired oupu volage. When no conneced, he conrol inpu auomaically ses he oupu volage o U o nom. a) Adjusmen by means of an exernal conrol volage U ex beween pin 6 (R) and pin : The conrol volage range is...75 V DC and allows an oupu volage adjusmen in he range of approximaely...% U o nom. U o U ex =.5 V (approximae formula) U 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 (U o < U o nom ) o achieve an oupu volage adjusmen range of approximaely...% U o nom or: Beween pin 6 and pin (U o > U o nom ) o achieve an oupu volage adjusmen range of approximaely...% U o nom. Warning: U ex shall never exceed.75 V DC. The value of R' ex shall never be less han he lowes value as indicaed in able R' ex (for U > U nom ) o avoid damage o he uni! Fig. Oupu volage conrol for single oupu unis LK by means of he R inpu Remarks: The R-Funcion excludes opion P (oupu volage adjusmen by poeniomeer). If he oupu volages are increased above U o nom via R- inpu conrol, opion P seing, remoe sensing or opion T, he oupu curren(s) should be reduced accordingly so ha P o nom is no exceeded. The R-inpu (as well as opion P) is relaed o he main oupu. Wih double oupu unis he second oupu follows he value of he conrolled main oupu. Resisor values as indicaed for he single oupu unis should be used. For correc oupu volage adjusmen of double oupu unis he exernal wiring of he oupus should be according o: R-funcion for differen oupu configuraions depending upon he desired oupu configuraion. In case of parallel connecion he oupu volages should be individually se wihin a olerance of...%. N P N P Module Module 6 6 Vo+ R S Vo Vo+ S+ R S Vo + 63 U ex R' ex R ex Table 7a: R ex for U o < U o nom ; approximaive values (U i nom, I o nom, series E 96 resisors); R' ex = U o nom = 5. V U o nom = V U o nom = 5 V U o nom = V U o (V) R ex [kω] U o [V] R ex [kω] U o [V] R ex [kω] U o [V] R ex [kω] Table 7b: R ex for U o > U o nom ; approximaive values (U i nom, I o nom, series E 96 resisors); R ex = U o nom = 5. V U o nom = V U o nom = 5 V U o nom = V U o [V] R' ex [kω] U o [V] R' ex [kω] U o [V] R' ex [kω] U o [V] R' ex [kω] Firs column: single oupu unis or double oupu unis wih separaed oupus, second column: oupus in series connecion Ediion /. 3/8

14 Cassee Syle 5 Wa AC-DC Converers K Series PFC R-Funcion for differen oupu configuraions Vo+ 6 + Vo Vo+ Vo Vo Vo+ Vo R R ex R' ex U o V 3 V 8 V Vo+ Vo Vo Vo+ Vo R U o R ex V 5 V V R' ex Fig. a LK 5 wih H5 connecor. R-inpu for oupu volage conrol. Wiring for oupu volage V or 3 V or 8 V wih main and second oupu conneced in series. Fig. b LK 5 wih H5 connecor. R-inpu for oupu volage conrol. Wiring for oupu volage V or 5 V or V wih main and second oupu conneced in parallel. Vo+ V 66 Vo+ +/+3/+8 V 67 + Vo+ Vo Vo Vo+ Vo R U o / 5/ V U o +/+5/+ V R ex R' ex + Vo+ Vo Vo Vo+ Vo R R ex U o R' ex U o +/+5/+ V V + Fig. c LK 5 wih H5 connecor. R-inpu for oupu volage conrol. Wiring of main and second oupu for wo symmerical oupu volages U o and U o : ± V or ±5 V or ± V. Fig. d LK 5 wih H5 connecor. R-inpu for oupu volage conrol. Wiring of main and second oupu for wo oupu volages U o and U o : + V and + V or +5 V and +3 V or + V and +8 V. Vo+ Vo+ Vo 68 + V 6 U o 5 V V 8 A ceramic mulilayer capacior conneced across he load reduces ripple and spikes. Shores possible wiring for series connecion a he female connecor Vo Vo+ Vo R 6 R ex R' ex U o V 5 V V Fig. e LK 5 wih H5 connecor. R-inpu for oupu volage conrol. Wiring of main and second oupu for wo oupu volages U o and U o : V/ V or 5 V/5 V or V/ V, he oupus are galvanically isolaed. + Remarks: Double oupu unis fied wih H5 connecors have he oupu pins of he second oupu, pins /6 and 8/, inernally paralleled. I is recommended ha pins /6 and 8/ be direcly paralleled a he female connecor as well o reduce he volage drop across he connecor. Please noe: U o varies depending upon is own load and he load on oupu. Ediion /. /8

15 Cassee Syle 5 Wa AC-DC Converers K Series PFC Display Saus of LEDs OK i I o L U o > U o adj 6 U i Fig. LEDs "OK", "i" and "I o L "saus versus inpu volage Condiions: I o I o nom, T C T C max, U inh.8 V U i uv = undervolage lock-ou, U i ov = overvolage lock-ou U i uv U i min U i max U i ov U i abs OK I o L i U o > U o adj I o U o < U o adj I o nom I ol T C LEDs "OK" and "I o L "saus versus oupu curren Condiions: U i min...u i max, T C T C max, U inh.8 V LED "i"versus case emperaure Condiions: U i min...u i max, I o I o nom, U inh.8 V T C max T PTC hreshold U inh hreshold i -5 V LED off +.8 V +. V LED Saus undefined U i inh +5 V LED on LED "i"versus U inh Condiions: U i min...u i max, I o I o nom, T C T C max Baery Charging/Temperaure Sensor The LK are inended for lead acid baery charger applicaions. For an opimum baery charging and life expecancy of he baery an exernal emperaure sensor may be conneced o he R-inpu. The sensor is mouned as close as possible o he baery pole and adjuss he oupu volage of he LK uni according o he emperaure of he baery (which is relaed o he load of he baery and he ambien emperaure). Depending on he cell volage and he emperaure coefficien of he baery, differen sensor ypes are available. For more informaion please ask Power-One. Tes Sockes (Main oupu only ) Tes sockes for measuring he oupu volage U o are locaed a he fron of he module. The posiive es socke is proeced by a series resisor (see: Funcional Descripion, block diagrams). The volage measured a he es sockes is approximaely 3 mv lower han he value measured a he oupu erminals. In case of double oupu unis exernally conneced in series for U o = V, 3 V or 8 V he moniored oupu volage is V, 5 V or V respecively. Cell volage [V] U o max.3.5 U z =.7 V, 3.5 mv/k..5 U o nom U z =.3 V, 3.5 mv/k. [ C] Fig. 7 Dependance of oupu volage vs. emperaure for defined emperaure coefficien. Ediion /. 5/8

16 Cassee Syle 5 Wa AC-DC Converers K Series PFC Elecromagneic Compaibiliy (EMC) A meal oxide VDR ogeher wih an inpu fuse and an inpu filer form an effecive proecion agains high inpu ransien volages which ypically occur in mos insallaions. The K series has been successfully esed o he following specificaions: Elecromagneic Immuniy Table 8: Immuniy ype ess Phenomenon Sandard Level Coupling Value Waveform Source Tes In Permode applied imped. procedure oper. form. 3 Volage surge IEC 657- i/c, +i/ i 8 V p µs Ω pos. and neg. yes 5 V p 5 µs volage surge per coupling mode 3 V p 5 µs V p µs 7 V p ns Supply relaed RIA B +i/ i.5 U ba.//. s. Ω posiive yes surge surge Direc ransien C +i/c, i/c 96 V p / µs 5 Ω 5 pos. and 5 neg. yes D 8 V p 5/5 µs impulses E 36 V p.5/5 µs Ω F 8 V p./ µs G 8 V p.5/. µs Indirec coupled H +o/c, o/c 8 V p 5/5 µs ransien J 36 V p.5/5 µs K 8 V p./ µs L 8 V p.5/. µs Elecrosaic IEC/EN conac discharge 8 V p /5 ns 33 Ω posiive and yes A discharge 6-- negaive air discharge 5 V p (o case) discharges Elecromagneic IEC/EN 3 anenna V/m AM 8% n.a. 8 MHz yes A field 6--3 khz Elecromagneic ENV 5 5% duy cycle, 9 ±5 MHz yes A field, Hz repeiion pulse modulaed frequency Elecrical fas IEC/EN capaciive, o/c V p burss of 5/5 ns 5 Ω min posiive yes A ransien/burs 6--.5/5 khz over min negaive i/c, +i/ i V p 5 ms; burs ransiens per direc period: 3 ms coupling mode Surge IEC/EN 3 i/c V p./5 µs Ω 5 pos. and 5 neg. yes A i/ i Ω surges per Conduced IEC/EN 3 i, o, signal wires V rms AM 8% 5 Ω MHz yes A disurbances 6--6 ( dbµv) khz Relaed and previous sandards are referenced in: Technical Informaion: Sandards. i = inpu, o = oupu, c = case. 3 A = Normal operaion, no deviaion from specificaions, B = Normal operaion, emporary deviaion from specs possible. Tes in progress, please consul facory. Noe: Previous sandards are referenced in: Technical Informaion: Sandards. Ediion /. 6/8

17 Cassee Syle 5 Wa AC-DC Converers K Series PFC [dbµv] A B [dbµv/m] A B MHz Fig. 3 Typical disurbance volage (quasi-peak) a he inpu according o CISPR / and EN 55/, measured a U i nom and I o nom [MHz] Fig. Typical radiaed elecromagneic field srengh (quasi-peak) according o CISPR / and EN 55/, normalized o a disance of m, measured a U i nom and I o nom. Immuniy o Environmenal Condiions Table 9: Mechanical sress Tes mehod Sandard Tes condiions Saus Ca Damp hea IEC/DIN IEC Temperaure: ± C Uni no seady sae MIL-STD-8D secion 57. Relaive humidiy: 93 +/-3 % operaing Duraion: 56 days Ea Shock IEC/EN/DIN EN Acceleraion ampliude: g n = 98 m/s Uni (half-sinusoidal) MIL-STD-8D secion 56.3 Bump duraion: 6 ms operaing Number of bumps: 8 (3 each direcion) Eb Bump IEC/EN/DIN EN Acceleraion ampliude: g n = 39 m/s Uni (half-sinusoidal) MIL-STD-8D secion 56.3 Bump duraion: 6 ms operaing Number of bumps: 6 ( each direcion) Fc Vibraion IEC/EN/DIN EN Acceleraion ampliude:.35 mm (...6 Hz) Uni (sinusoidal) 5 g n = 9 m/s (6... Hz) operaing Frequency ( Oc/min):... Hz Tes duraion: 7.5 h (.5 h each axis) Fn Vibraion IEC Acceleraion specral densiy:.5 g n /Hz Uni broad-band DIN 6 par 3 Frequency band: Hz operaing random MIL-STD-8D secion 5.3 Acceleraion magniude:.97 g n rms (digial conrol) Tes duraion: 3 h ( h each axis) Kb Sal mis, cyclic IEC/EN/DIN IEC Concenraion: 5% (3 C) Uni no (sodium chloride Duraion: h per cycle operaing NaCl soluion) Sorage: C, 93% rel. humidiy Sorage duraion: h per cycle Number of cycles: 3 Table : Temperaure specificaions, values given are for an air pressure of 8... hpa (8... mbar) Temperaure -6 (LK 3) Sandard -7 Opion -9 Characerisics Condiions min max min max min max Uni T A Ambien emperaure U i min...u i max C Case emperaure I o =...I o nom T C T S Sorage emperaure No operaional 55 Table : MTBF Values a Specified Type Ground Benign Ground Fixed Ground Mobile Uni Case Temperaure C C 7 C 5 C MTBF LK 3 7ER 5' 88' 38' 35' h Calculaed in accordance wih MIL-HDBK 7F. Ediion /. 7/8

18 Cassee Syle 5 Wa AC-DC Converers K Series PFC Mechanical Daa Dimensions in mm. Tolerances ±.3 mm unless oherwise indicaed TE 9 TE Measuring poin of case emperaure T C 6.5 (3U) Graviaional axis Tes jacks (+/ ) Opion P (U o ) Opion D (U o ) Opion D (U i ) LED i (red) LED OK (green) LED I ol (red) = Ø 3.5 = Ø (DIN 9) 8 Fron plae Main face d 68.5 ±.5 Back plae European Projecion Fig. 5 Case K wih heasink, case aluminium, black finish and self cooling, weigh: Approx..55 kg Noe: d 5 mm, recommended minimum disance o nex par o ensure proper air circulaion a full oupu power. free air locaions: he module should be mouned wih fins in verical posiion o achieve a maximum air flow hrough he hea sink TE TE M (3U) Measuring poin of case emperaure T C ± (DIN 9) Fig. 6 Case K wih opion B (cooling plae), case aluminium, black finish and self cooling, weigh: Approx..5 kg 7. Noe: Long case wih S-ype heasink or cooling plae B elongaed by 6 mm for mm rack deph, is available on reques. (Fron panel will have no LEDs and no es jacks.) 5 Ediion /. 8/8

19 Cassee Syle 5 Wa AC-DC Converers K Series PFC Safey and Insallaion Insrucions Connecor Pin Allocaion The connecor pin allocaion able defines he elecrical poenials and he physical pin posiions on he H5 connecor. Pin no., he proecive earh pin presen on all LK AC-DC converers is leading, ensuring ha i makes conac wih he female connecor firs. Table : H5 and H5 S Connecor pin allocaion Pin Connecor ype H5 S Connecor ype H 5 No. LK 3 LK 3, LK 5, LK 6 LK 5 Vo+ Vo+ Vo+ Oupu Oupu 6 Vo+ Vo+ Oupu 8 Vo Vo Vo Oupu Oupu Vo Vo Oupu S+ Sense S+ Sense Vo+ Oupu S Sense S Sense Vo Oupu 6 R Conrol of U o R Conrol of U o R Conrol of U o 8 i Inhibi i Inhibi i Inhibi D 3 Save daa D Save daa D Save daa V 3 ACFAIL T Curren sharing T Curren sharing T Curren sharing Proecive earh Proecive earh Proecive earh 6 N N N Neural Neural 8 N N N Neural 3 P P P Phase Phase 3 P P P Feaure R excludes opion P and vice versa Leading pin (pregrounding) 3 Opion D excludes opion V and vice versa Phase 3/3 Type H5 S /6 3 Type H5 Fig. 7 View of module's male connecors Insallaion Insrucions The K series AC-DC 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 end-use applicaion. Connecion o he sysem shall be made via he female connecor H5/H5 S (see: Accessories). Oher insallaion mehods may no mee he safey requiremens. The AC-DC converers are provided wih pin no. ( ), which is reliably conneced wih heir case. For safey reasons i is essenial o connec his pin wih he proecive earh of he supply sysem. An inpu fuse is buil-in in he connecion from pins no. 3 and 3 (P~) of he uni. Since his fuse is designed o proec he uni in case of an overcurren and does no necessarily cover all cusomer needs, an exernal fuse suiable for he applicaion and in compliance wih he local requiremens migh be necessary in he wiring o one or boh inpu poenials, pins nos. 6 and 8 and/or nos. 3 and 3. Imporan: Whenever he inhibi funcion is no in use, pin no. 8 (i) should be conneced o pin no. (S /Vo ) o enable he oupu(s). Do no open he modules, or guaranee will be invalidaed. Ediion /. 9/8

20 Cassee Syle 5 Wa AC-DC Converers K Series PFC Due o high curren values, all LK unis provide wo inernally parallel conneced conacs for cerain pahs (pins /6, 8/, 6/8 and 3/3, respecively). I is recommended o connec load and supply o boh female connecor pins of each pah in order o keep he volage drop across he connecor pins o an absolue minimum and o no oversress he connecor conacs if currens are higher han approx. 8 A. The connecor conacs are raed 8 A over he whole emperaure range. Make sure ha here is sufficien air flow available for convecion cooling. This should be verified by measuring he case emperaure when he uni is insalled and operaed in he end-use applicaion. The maximum specified case emperaure T C max shall no be exceeded. See also: Thermal Consideraions. Check for hazardous volages before alering any connecions. Ensure ha a uni failure (e.g. by an inernal shor-circui) does no resul in a hazardous condiion. See also: Safey of operaor accessible oupu circui. Cleaning Agens In order o avoid possible damage, any peneraion of cleaning fluids is o be prevened, since he power supplies are no hermeically sealed. Proecion Degree Condiion: Female connecor fied o he uni. IP 3: All unis excep hose wih opion P, and excep hose wih opion D or V wih poeniomeer. IP : All unis fied wih opion P, or wih opion D or V wih poeniomeer. Table 3: Isolaion Characerisic Inpu o Inpu o Oupu o Oupu o Uni case oupu case oupu Elecric Required according o.5 3. kv rms srengh IEC/EN 695 es volage.. kv DC Acual facory es s AC es volage equivalen.... kv rms o acual facory es Insulaion resisance a 5 V DC >3 >3 >3 > MΩ In accordance wih IEC/EN 695 only subassemblies are esed in facory wih his volage. Tesed a V DC. For creepage disances and clearances refer o: Technical Informaion: Safey. Sandards and Approvals All AC-DC converers correspond o class I equipmen. They are UL recognized according o UL 95, UL recognized for Canada o CAN/CSA C. No and LGA approved o IEC/EN 695 sandards. The unis have been evaluaed for: Building in Basic insulaion beween inpu and case, based on 5 V AC and V DC Double or reinforced insulaion beween inpu and oupu, based on 5 V AC and V DC Basic insulaion beween oupu and case based on V AC and DC. Operaional insulaion beween oupu and oupu The use in a polluion degree environmen Connecing he inpu o a primary or secondary circui which is subjec o a maximum ransien raing of 5 V (overvolage caegory III based on a V primary circui, overvolage caegory II based on a 3 V primary circui). The UL 95 recogniion limis he maximum case emperaure of he sandard modules o T C = T C max K = 95 C. The AC-DC converers are subjec o manufacuring surveillance in accordance wih he above menioned UL, CSA, EN and wih ISO 9 sandards. Isolaion The elecric srengh es is performed as facory es in accordance wih IEC/EN 695 and UL 95 and should no be repeaed in he field. Power-One will no honour any guaranee claims resuling from elecric srengh field ess. Imporan: Tesing by applying AC volages will resul in high and dangerous leakage currens flowing hrough he Y-capaciors (see fig.: Block diagram). Ediion /. /8

21 Cassee Syle 5 Wa AC-DC Converers K Series PFC Leakage Currens in AC-DC operaion Leakage currens flow due o inernal leakage capaciance and RFI suppression Y-capaciors. The curren values are proporional o he mains volage and nearly proporional o he mains frequency and are specified a an inpu volage of 5 V (5 Hz) where phase, neural and proecive earh are correcly conneced as required for class I equipmen. MI 5 Ω 5 Ω kω nf 6 Under es condiions he leakage curren flows hrough a measuring insrumen (MI) as described in fig.: Measuring insrumen for earh leakage curren ess, which akes ino accoun impedance and sensiiviy of a person ouching unearhed accessible pars. The curren value is calculaed by dividing he measured volage by 5 Ω. If inpus of K- unis are conneced in parallel, heir individual leakage currens are added. P N P N 6 Vo+ Vo nf V MI for earh leakage curren Fig. 8 Measuring insrumen (MI) for earh leaking curren ess according o IEC/EN 695. Table : Leakage currens Fig. 9 Tes se-up Characerisic Class I Uni LK, LK 5 Maximum earh Permissible according o IEC/EN ma leakage curren Specified value a 5 V, 5 Hz.8 Safey of operaor accessible oupu circui If he oupu circui of an AC-DC converer is operaor accessible, i shall be an SELV circui according o he IEC/EN 695 relaed safey sandards. The following able shows a possible insallaion configuraion, compliance wih which causes he oupu circui of an K series AC-DC converer o be an SELV circui according o IEC/EN 695 up o a configured oupu volage (sum of nominal volages if in series or +/ configuraion) of 36 V. However, i is he sole responsibiliy of he insaller o assure he compliance wih he relevan and applicable safey regulaions. More informaion is given in: Technical Informaion: Safey. Table 5: Safey concep leading o an SELV oupu circui Condiions AC-DC converer Insallaion Resul Nominal volage Grade of insulaion Measures o achieve he resuling Safey saus of he AC-DC beween inpu and oupu safey saus of he oupu circui converer oupu circui provided by he AC-DC converer Mains Double or reinforced Earhed case and insallaion SELV circui 5 V AC according o he applicable sandards The earh connecion has o be provided by he insaller according o he relevan safey sandards, e.g. IEC/EN 695. Mains Earh connecion ~ ~ Fuse Fuse AC-DC converer + SELV Fig. 3 Schemaic safey concep. Use fuses and earh connecion as per: Insallaion Insrucions and able: Safey concep leading o an SELV oupu circui. Ediion /. /8

22 Cassee Syle 5 Wa AC-DC Converers K Series PFC Descripion of Opions Table 6: Survey of opions Opion Funcion of Opion Characerisics -9 Exended operaional ambien emperaure range T A =...7 C E Elecronic inrush curren limiaion circuiry Acive inrush curren limiaion P Poeniomeer for fine adjusmen of oupu volage Adjusmen range +/ 6% of U o nom excludes R inpu D Inpu and/or oupu undervolage monioring circuiry Safe daa signal oupu (Versions D...DD) V 3 Inpu (and oupu) undervolage monioring circuiry ACFAIL signal according o VME specs (Versions V, V, V3) T Curren sharing Inerconnec T-pins if paralleling oupus (5 unis max.) B, B Cooling plae Replaces sandard hea sink, allowing direc chassis-mouning Opion R excludes opion P and vice versa Opion D excludes Opion V and vice versa 3 Only available if main oupu volage U o = 5. E Inrush Curren Limiaion The converers may be supplemened by an elecronic circui (opion E, replacing he sandard buil-in NTC) o achieve an enhanced inrush curren limiing funcion. Table 7: Inrush curren characerisics wih opion E Characerisics LK Uni U i = 3 V AC yp max I inr p Peak inrush curren.7 A inr Inrush curren duraion 35 5 ms Inpu Filer I i [A] Recifier Fig. 3 Opion E block diagram R S Conrol inr Capacior C i fully charged Normal operaion (FET fully conducing) [ms] Fig. 3 Inrush curren wih opion E, U i = 3 V AC, P o = P o nom Precauion: Subsequen swich-on cycles a sar-up are limied o max. cycles during he firs seconds (cold uni) and a coninuing on/off (T C =95 C) max. cycle every 8 sec. R I FET PFC - Conrol C i Converer -9 Exended Temperaure Range Opion -9 exends he operaional ambien emperaure range from C (sandard) o...7 C. The power supplies provide full nominal oupu power wih free air convecion cooling. Opion -9 excludes inrush curren limiaion by NTC. P Poeniomeer The poeniomeer provides an oupu volage adjusmen range of +/ 6% of U o nom and is accessible hrough a hole in he fron cover. This feaure enables compensaion for volage drops across he connecor and wiring. Opion P is no recommended if unis are conneced in parallel. Opion P excludes he R-funcion. Wih double oupu unis boh oupus are affeced by he poeniomeer seing (doubling he volage seing if he oupus are in series). If he oupu volages are increased above U o nom via R-inpu conrol, opion P seing, remoe sensing or opion T, he oupu curren(s) should be reduced accordingly so ha P o nom is no exceeded. T Curren Sharing This opion ensures ha he oupu currens are approximaely shared beween all paralleled modules and increases sysem reliabiliy. To use his faciliy, simply inerconnec he T pins of all modules and make sure, ha pins, he S pins (K ) or he Vo pins (K 5) are also conneced ogeher. The load leads should have equal lengh and cross secion o ensure equal volage drops. No more han 5 unis should be conneced in parallel. If oupu volage adjusmen is requesed we srongly recommend o use he R-inpu insead of opion P, as wih opion P he required seing accuracy is difficul o achieve. The oupu volages mus be individually se prior o paralleling o wihin a olerance of...% or he R pins should be conneced ogeher. 3 Vo+ Load Vo Vo+ Vo Vo+ Vo Fig. 33 An example of poor wiring for connecion in parallel Ediion /. /8

23 Cassee Syle 5 Wa AC-DC Converers K Series PFC N P N P Vo+ S+ T S Vo Vo+ S+ T S Vo max. 5 unis conneced in parallel Fig. 3 Paralleling of single oupu unis using opion T wih he sense lines conneced a he load Load Leads should have equal lengh and cross secions and should run in he same cable loom. Diodes recommended in redundan operaion only 3 DC common poin 3 3 Module Module Vo+ Vo T Vo+ Vo Vo+ Vo T Vo+ Vo Power bus + 37 max. 5 unis in parallel connecion Fig. 35 Paralleling of double oupu unis using opion T wih Power Bus Load Ediion /. 3/8

24 Cassee Syle 5 Wa AC-DC Converers K Series PFC Opion D Undervolage monior The inpu and/or oupu undervolage monioring circui operaes independenly of he buil-in inpu undervolage lockou circui. A logic "low" (JFET oupu) or "high" signal (NPN oupu) is generaed a pin as soon as one of he moniored volages drops below he preseleced hreshold level U. The reurn for his signal is Vo. The D oupu recovers when he moniored volage(s) exceed(s) U + U h. The hreshold level U i is adjused in he facory. The hreshold level U o is eiher adjused by a poeniomeer, accessible hrough a hole in he fron cover, or facory adjused o a fixed value specified by he cusomer. Opion D exiss in various versions D...DD as shown in he following able. Table 8: Undervolage monioring funcions Oupu ype Monioring Minimum adjusmen range Typical hyseresis U ho [% of U ] JFET NPN U i U o of hreshold level U for U min...u max U i U o U ho D D5 no yes V D D6 yes no 355 V DC - - D3 D7 yes yes 355 V DC ( U o ) "" D D8 no yes - ( U o ) "" D D9 no yes V yes yes 355 V DC V DD yes yes 355 V DC V Threshold level adjusable by poeniomeer Fixed value. Tracking if U o adjused via R-inpu, opion P or sense lines. 3 The hreshold level permanenly adjused according o cusomer specificaion ±% a 5 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)! Opion D moniors he boos regulaor oupu volage. The rigger level is adjused in he facory o 355 V DC. JFET oupu (D D): Connecor pin D is inernally conneced via he drainsource pah of a JFET (self-conducing ype) o he negaive poenial of oupu. U D. V (logic low) corresponds o a moniored volage level (U i and/or U o ) <U. The curren I D hrough he JFET should no exceed.5 ma. The JFET is proeced by a.5 W Zener diode of 8. V agains exernal overvolages. U i, U o saus U i or U o < U U i and U o > U + U h D oupu, U D low, L, U D. V a I D =.5 ma high, H, I D 5 µa a U D = 5.5 V Inpu 6 Vo+ Vo Fig. 36 Opion D...D: JFET oupu, I D.5 ma D I D U D R p NPN oupu (D5...DD): Connecor pin D is inernally conneced via he collecoremier pah of a NPN ransisor o he negaive poenial of oupu. U D <. V (logic low) corresponds o a moniored volage level (U i and/or U o ) > U + U h. The curren I D hrough he open collecor should no exceed ma. The NPN oupu is no proeced agains exernal overvolages. U D should no exceed V. Inpu 7 Vo+ I D D U D R p U i, U o saus U i or U o < U U i and U o > U + U h D oupu, U D high, H, I D 5 µa a U D = V low, L, U D. V a I D = ma Vo Fig. 37 Opion D5...DD: NPN oupu, U o V, I D ma Table 9: D-oupu logic signals Version of D U i < U resp. U o < U U i > U + U h resp. U o > U Configuraion D, D, D3, D, D low high JFET D5, D6, D7, D8, D9, DD high low NPN Ediion /. /8

25 Cassee Syle 5 Wa AC-DC Converers K Series PFC D-signal wih respec o inpu and oupu volage versus ime: Inpu volage monioring NPN U D U D high U D low I D I D high I D low JFET U D U D high U D low h low min low min low min high min U o U o nom.95 h U ci [V DC] Inpu volage failure Swich-on cycle Inpu volage sag Swich-on cycle and subsequen Oupu volage monioring inpu volage failure NPN U D U D high U D low I D I D high I D low JFET U D U D high U D low low min U o U o nom U o +U ho U o Oupu volage failure Fig. 38 Relaionship beween U ci, U o, U D, U o /U o nom versus ime Hold-up ime see secion: Elecrical Inpu Daa. Wih oupu volage monioring, hold-up ime h =. 3 The signal will remain high if he D oupu is conneced o an exernal source. low min =...7 ms, ypically 3 ms. Ediion /. 5/8

26 Cassee Syle 5 Wa AC-DC Converers K Series PFC V ACFAIL Signal (VME) Available for unis wih U o = 5. V. This opion defines an undervolage monioring circui for he inpu or inpu and main oupu volage equivalen o opion D and generaes he 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 U V.6 V (open-collecor oupu of a NPN ransisor). The pull-up resisor feeding he open-collecor oupu should be placed on he VME back plane. Afer he ACFAIL signal has gone low, he VME sandard requires a hold-up ime h of a leas ms before he 5. V oupu drops o.875 V when he oupu is fully loaded. This hold-up ime h is provided by he inernal inpu capaciance. See also fig.: Hold-up Time versus Oupu Power. Table : Undervolage monior funcions V oupu Monioring Minimum adjusmen (VME compaible) U i U o range of hreshold level U i U o V yes no 355V DC V3 yes yes 355V DC U o Opion D moniors he boos regulaor oupu volage. The rigger level is adjused in he facory o 355 V DC. Fixed value beween 95% and 98.5% of U o. Opion V operaes independenly of he buil-in inpu undervolage lock-ou circui. A logic "low" signal is generaed a pin as soon as one of he moniored volages drops below he preseleced hreshold level U. The reurn for his signal is Vo. The V oupu recovers when he moniored volage(s) exceed(s) U + U h. The hreshold level U i is adjused in he facory o 355 V DC. The hreshold level U o eiher is adjused during manufacure o a deermined cusomer specified value. V oupu (V, V3): Connecor pin V is inernally conneced o he open collecor of a NPN ransisor. The emier is conneced o he negaive poenial of oupu. U V.6 V (logic low) corresponds o a moniored volage level (U i and/or U o ) <U. The curren I V hrough he open collecor should no exceed 5 ma. The NPN oupu is no proeced agains exernal overvolages. U V should no exceed 6 V. U i, U o saus U i or U o < U U i and U o > U + U h Inpu 9 Fig. 39 Oupu configuraion of opions V and V3 V oupu, U V low, L, U V.6 V a I V = 5 ma high, H, I V 5 µa a U V = 5. V Vo+ V Vo I V U V R p Ediion /. 6/8

27 Cassee Syle 5 Wa AC-DC Converers K Series PFC Inpu volage monioring V U V U V high 3 low min low min low min U V low V3 U V U V high 3 low min 3 3 low min U V low U o 5. V.875 V h h. V U ci [V DC] Inpu volage failure Swich-on cycle Inpu volage sag Swich-on cycle and subsequen inpu volage failure Oupu volage monioring V U V U V high U V low V3 U V U V high 3 3 low min U V low U o 5. V.875 V. V U i U i + U hi U i Oupu volage failure Fig. Relaionship beween U ci, U o, U V, I V and U o /U o nom versus ime. VME reques: minimum ms low min =... ms, ypically 8 ms 3 U V level no defined a U o <. V The V signal drops simulaneously wih he oupu volage if he pull-up resisor R P is conneced o Vo+. The V signal remains high if R P is conneced o an exernal source. Ediion /. 7/8

28 Cassee Syle 5 Wa AC-DC Converers K Series PFC B Cooling Plae (see: Mechanical Daa) Where a cooling surface is available, we recommend he use of a cooling plae (opion B) insead of he sandard heasink. The mouning sysem should ensure sufficien cooling capaciy o guaranee ha he maximum case emperaure T C max is no exceeded. The cooling capaciy is calculaed by: (% η) P Loss = (U o I o ) η Efficiency h see: Type survey. Elongaed case for mm rack deph: Opion B. Accessories A variey of elecrical and mechanical accessories are available including: Fron panels for 9" rack mouning, Schroff and Inermas sysems. Maing H5 and H5 S connecors wih screw, solder, fas-on or press-fi erminals. Connecor reenion faciliies. Code key sysem for connecor coding. Chassis mouning plaes for mouning he 9" cassee o a chassis/wall where only fronal access is given. Universal mouning bracke for DIN-rail or chassis mouning. For more deailed informaion please refer o: Accessory Producs. Fron panels H5 and H5 S female connecor, Code key sysem Mouning plae, Connecor reenion clips Universal mouning bracke for DIN-rail mouning. Ediion /. 8/8