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cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y p ower s upply ? ac 100-240v wide-range input ? width only 48mm ? efficiency up to 95.6% ? excellent partial load efficiency ? 20% output power reserves ? easy fuse breaking C 3 times nominal current for 12ms ? safe hiccup plus overload mode ? active power factor correction (pfc) ? minimal inrush current surge ? full power between -25c and +60c ? dc-ok relay contact ? current sharing feature for parallel use ? 3 year warranty 1/32 g eneral d escription the dimension cp-series ar e cost optimized power supplies without compromisi ng quality, reliability and performance. the most outstanding features of the cp20 series are the high e fficiency, electronic inrush current limitation, active pfc, wide operational temperature range and the extraordinary small size. the cp20.241-c1 is equipped with conformal coated pc- boards preferred for applications in harsh areas. the cp20.241-s1 is equipped with quick-connect spring- clamp terminals preferred fo r applications which are exposed to mechanical vibr ation. the cp20.241-s2 has push-in terminals optimized for easy cabinet wiring. the cp20.241-v1 is equipped with a remote on/off feature and the cp20.242 features an enhanced dc input voltage range. the devices have a power reserve of 20% included, which may even be used continuously up to +45c. high immunity to transients a nd power surges as well as low electromagnetic emission, a dc-ok relay contact and a large international approval package makes this unit suitable for nearly every situation. s hort - form d ata output voltage dc 24v nominal adjustment range 24 - 28v factory setting 24.1v output current 24.0 - 20.6a below +45c ambient 20.0 C 17.1a at +60c ambient 15.0 C 13.0a at +70c ambient derate linearely between +45c and +70c input voltage ac ac 100-240v -15%/+10% mains frequency 50-60hz 6% input current ac 4.26 / 2.23a at 120 / 230vac power factor 0.99 / 0.98 at 120 / 230vac input voltage dc dc 110-150v 20% for cp20.241 (-xx) dc 110-300v 20% for cp20.242 input current dc 4.64a / 1.66a at 110 / 300vdc ac inrush current 10.0 / 4.5apk at 120 / 230vac efficiency 94.2 / 95.6% at 120 / 230vac losses 29.6 / 22.1w at 120 / 230vac hold-up time 32/ 32ms at 120 / 230vac temperature range -25c to +70c size (wxhxd) 48x124x127mm without din-rail weight 830g / 1.83lb o rder n umbers power supply cp20.241 cp20.241-c1 with conformal coated pc-boards cp20.241-s1 with quick-connect spring-clamp terminals cp20.241-s2 with push-in terminals cp20.241-v1 with remote on/off feature cp20.242 enhanced dc input mechanical accessory zm5.wall wall/panel mount bracket m arkings for details or a complete approval list see section 20. ind. cont. eq . iecex atex ul 60950-1
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y i ndex page page 1. intended use .......................................................3 2. installation requirements ...................................3 3. ac-input ...............................................................5 4. dc-input ...............................................................6 5. input inrush current ...........................................7 6. output .................................................................8 7. hold-up time .....................................................10 8. dc-ok relay contact ........................................11 9. remote on / off function (cp20.241-v1 only) 11 10. efficiency and power losses ..............................12 11. lifetime expectancy ..........................................13 12. mtbf ..................................................................13 13. functional diagram ...........................................14 14. terminals and wiring ........................................15 15. front side and user elements ...........................17 16. emc ....................................................................18 17. environment ......................................................20 18. safety and protection features ........................21 19. dielectric strength ............................................22 20. approvals .......................................................... 23 21. other fulfilled standards ................................. 23 22. physical dimensions and weight ..................... 24 23. accessories ........................................................ 25 23.1. uf20.241 buffer module ..........................25 23.2. yr40.241/242 - redundancy modules .....25 23.3. yr40.245 - redundancy modules ............25 23.4. zm5.wall C wall/panel mount bracket .26 24. application notes ............................................. 27 24.1. peak current capability ...........................27 24.2. output circuit breakers ............................28 24.3. series operation .......................................29 24.4. parallel use to increase output power ....29 24.5. parallel use for redundancy ....................30 24.6. charging of batteries ...............................31 24.7. operation on two phases ........................31 24.8. use in a tightly sealed enclosure ............31 24.9. mounting orientations ............................32 the information given in this document is correct to the best of our kn owledge and experience at the time of publication. if not expressly agreed othe rwise, this information does not represent a warranty in the legal sense of the word. as the state of our knowledge an d experience is constantly changing, the information in this data sheet is subject to revision. we therefore ki ndly ask you to always use the latest issue of this document (available under www.pulspower.com). no part of this document may be re produced or utilized in any form wit hout our prior permission in writing. t erminology and a breviations pe and symbol pe is the abbreviation for p rotective e arth and has the same meaning as the symbol . earth, ground this document uses the term earth which is the same as the u.s. term ground. t.b.d. to be defined, value or de scription will follow later. ac 230v a figure displayed with the ac or dc before the value represents a nominal voltage with standard tolerances (usually 15%) included. e.g.: dc 12v describes a 12v battery disregardi ng whether it is full (13.7v) or flat (10v) 230vac a figure with the unit (vac) at the end is a momentary figure without any additional tolerances included. 50hz vs. 60hz as long as not otherwise stated, ac 230v parameters are valid at 50hz mains frequency. may a key word indicating flexibility of choice with no im plied preference. shall a key word indicating a mandatory requirement. should a key word indicating flexibility of choi ce with a strongly pref erred implementation. 2/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 1. i ntended u se this device is designed for installation in an enclosure a nd is intended for the general professional use such as in industrial control, office, communicati on, and instrumentation equipment. do not use this power supply in equipment, where malfuncti on may cause severe personal injury or threaten human life. 2. i nstallation r equirements warning risk of electrical shock, fi re, personal injury or death. - do not use the power supply without proper grounding (protective earth). us e the terminal on the input block for earth connection and not one of the screws on the housing. - turn power off before working on the devi ce. protect against inad vertent re-powering. - make sure that the wiring is correct by following all local and national codes. - do not modify or repair the unit. - do not open the unit as high voltages are present inside. - use caution to prevent any foreign objects from enteri ng the housing. - do not use in wet locations or in areas wh ere moisture or condens ation can be expected. - do not touch during power-on, and immediatel y after power-off. hot surfaces may cause burns. obey the following installation requirements: - this device may only be installed and put into opera tion by qualified personnel. - install the device in an enclosure providing protec tion against electrical, mechan ical and fire hazards. - the device is designed for use in pollutio n degree 2 areas in c ontrolled environments. - the enclosure of the device provides a degr ee of protection of ip20 according to iec 60529. - mount the unit on a din-rail so that the input terminals are located on the bottom of the unit. for other mounting orientations see de-rating re quirements in this document. - the device is designed for convection cooling and does not require an external fan. do not obstruct airflow and do not cover ventilation grid (e.g. cable conduits) by more than 15%! - keep the following installation clearan ces: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are recommended when the device is load ed permanently with more than 50% of the rated power. increase this clearance to 15mm in case the ad jacent device is a h eat source (example: another power supply). - make sure that the wiring is correct by following all local and national codes. use appropriate copper cables that are designed for a minimum operat ing temperature of 60c for ambient temper atures up to +45c, 75c for ambient temperatures up to +60c and 90c for ambient temperatures up to +70c. ensure that all strands of a stranded wire enter the terminal connection. check al so local codes and local requirements. in some c ountries local regulations might apply. - this device does not contain serviceable parts. the tripping of an internal fuse is caused by an internal defect. if damage or malfunction should occur during installation or opera tion, immediately turn power off and send the device to the factory for inspection. - the device is designed, tested and appr oved for branch circuits up to up to 30a (ul) or 32a (iec) without additional protection device. if an external fuse is utilized, do not use circuit breakers smalle r than 10a b- or c-characteristic to avoid a nuisance tripping of the circuit breaker. - a disconnecting means shall be provid ed for the input of the power supply. 3/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 4/32 p r e l i m i n a r y notes for use in hazardous location areas: the power supply is suitable for use in class i division 2 groups a, b, c, d locations. see chapter 20 for details. warning explosion hazards! substitution of components may impair su itability for this environment. do not disconnect the unit or operate the voltage adjustment or s/p jumper unless power has been switched off or the area is known to be non-hazardous. wiring must be in accordance with cla ss i, division 2 wiring methods of the national electrical code, nfpa 70, and in accordance with other lo cal or national codes. a suitable enclosure must be provided for the end product which has a mini mum protection of ip54 and fulfils the requirements of the en 60079-0.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 3. ac-i nput the device is suitable to be supplied from tn-, tt- and it mains networks with ac voltag e. for suitable dc supply voltages see chapter 4 . ac input nom. ac 100-240v ac input range min. 85-264vac continuous operation min. 264-300vac for maximal 500ms (occasional) allowed voltage l or n to earth max. 300vac continuous, according to iec 62477-1 input frequency nom. 50C60hz 6% turn-on voltage typ. 82vac steady-state value, see fig. 3-1 shut-down voltage typ. 72vac steady-state value, see fig. 3-1 external input protection see recommendations in chapter 2 . ac 100v ac 120v ac 230v input current typ. 5.15a 4. 26a 2.23a at 24v, 20a, see fig. 3-3 power factor typ. 0.996 0. 996 0.980 at 24v, 20a, see fig. 3-4 crest factor *) typ. 1.65 1.63 1.63 at 24v, 20a, the crest factor is the mathematical ratio of the peak value to rms value of the input current waveform. start-up delay typ. 450ms 420ms 440ms see fig. 3-2 rise time typ. 145ms 145ms 145ms at 24v, 20a const. current load, 0mf load capacitance, see fig. 3-2 typ. 160ms 160ms 160ms at 24v, 20a const. current load, 20mf load capacitance, see fig. 3-2 turn-on overshoot max. 200mv 200mv 200mv in single use mode, see fig. 3-2 fig. 3-1 input voltage range fig. 3-2 turn-on behavior, definitions turn-on 85v rated input range max. 500ms v p out 5/32 in 300vac 264v shut-down start-up delay rise time oversh oot - 5% output voltage input voltage fig. 3-3 input current vs. output current at 24v output voltage fig. 3-4 power factor vs. output current at 24v output voltage 24a 24681012141618 0 1 2 3 4 5 6a input current, typ. a) 100vac b) 120vac c) 230vac b a c output current power factor, typ. 2 4 6 8 1012141618 24a 0.75 0.8 0.85 0.9 0.95 1.0 a) 100vac b) 120vac c) 230vac a, b c 20 22 20 22 output current
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 4. dc-i nput the device is suitable to be supplied from a dc input volt age. use a battery or a simila r dc source. a supply from the intermediate dc-bus of a frequency conv erter is not recommended and can cause a malfuncti on or damage the unit. connect +pole to l, Cpole to n and the pe terminal to an earth wire or to the machine ground. dc input nom. dc 110-150v 20% for cp20.241, cp20.241-c1, cp20.241-s1, cp20.241- s2, cp20.241-v1 nom. dc 110-300v 20% for cp20.242 dc input range min. 88-180vdc continuous operation for c p20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1 88-360vdc continuous operation for cp20.242 dc input current typ. 4.64a at 110vdc, at 24v, 20a typ. 1.66a at 300vdc, at 24v, 20a allowed voltage (+) or (-) input to earth max. 375vdc continuous according to iec 62477-1 turn-on voltage typ. 80vdc steady state value shut-down voltage typ. 70vdc steady state value fig. 4-1 wiring for dc input 6/32 + - load l pe + - power supply ac dc battery n
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 5. i nput i nrush c urrent an active inrush limitation circui t limits the input inrush current af ter turn-on of the input voltage. the charging current into emi suppression capacitors is disregarded in th e first microseconds after switch-on. ac 100v ac 120v ac 230v inrush current max. 15a peak 12a peak 5.5a peak temperature independent typ. 12a peak 10a peak 4.5a peak temperature independent inrush energy max. 1a 2 s 1a 2 s 1a 2 s temperature independent fig. 5-1 typical turn-on behavior at nominal load and 25c ambient 100ms/div output input 230vac 24vdc input current 5a / div 7/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 8/32 p r e l i m i n a r y 6. o utput the output provides a selv/pelv rated voltage, which is galvanically isolated from the input voltage. the output is designed to supply any kind of loads, incl uding capacitive and inductive loads. if extreme large capacitors, such as edlcs (electric doubl e layer capacitors or ultracaps) with a capacitance > 1f are connected to the output, the unit might charge the capacitor in the hiccup plus mode. output voltage nom. 24v adjustment range min. 24- 28v guaranteed value max. 30v this is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. it is not a guaranteed value which can be achieved. factory setting output voltage typ. 24.1v in sin gle use mode: 0.2%, at full load, cold unit in parallel use mode: 0 .2%, at 20a, cold unit (results to 23.9v0.2% at 24a and 25.1v0.2% at no load) line regulation max. 10mv between 85 and 300vac input voltage change load regulation max. 100mv between 0 an d 24a in single use mode, static value typ. 1000mv between 0 and 24a in parallel use mode, static value, see fig. 6-2 ripple and noise voltage max. 50m vpp bandwidth 20hz to 20mhz, 50ohm output current nom. 24a 1) at 24v and an ambient temperature below 45c nom. 20a at 24v and 60c ambient temperature nom. 15a at 24v and 70c ambient temperature nom. 20.6a 1) at 28v and an ambient temperature below 45c nom. 17.1a at 28v and 60c ambient temperature nom. 13a at 28v and 70c ambient temperature derate linearely between +45c and +70c fuse breaking current typ. 60a up to 12ms once every five seconds, see fig. 6-4 . the fuse braking current is an enha nced transient current which helps to start heavy loads or to trip fuses on faulty output branches. the output voltage stays above 20v. see chapter 24.1 for additional measurements. overload protection included electronica lly protected against overload, no-load and short-circuits. in case of a protection event, audible noise may occur. overload behavior continuous current output voltage above 13vdc, see fig. 6-1 intermitted current 2) output voltage below 13vdc, see fig. 6-1 overload/ short-circuit current min. 26a continuous current, see fig. 6-1 max. 29.8a continuous current, see fig. 6-1 typ. 29a intermitted current peak value for typ. 2s load impedance 10mohm, see fig. 6-3 discharge current of output capacitors is not included. max. 9.8a intermitted curre nt average value (r.m.s.) load impedance 10mohm, see fig. 6-3 output capacitance typ. 8 500f included inside the power supply
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y back-feeding loads max. 35v the unit is resi stant and does not show malfunctioning when a load feeds back voltage to the power supply. it does not matter whether the power supply is on or off. the absorbing energy can be calculated according to the built-in large sized output capacitor. 1) this current is also available for temperatures up to +70c with a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes. 2) hiccup plus mode at heavy overloads (when output voltage falls below 13v), the power supply delivers continuous output current for 2s. after thi s, the output is switched off for approx. 18s before a new start attempt is automatically performed. this cycle is repeated as long as the overload exists. if the overload has been cleare d, the device will operate normally. see fig. 6-3 . fig. 6-1 output voltage vs. output current, typ. fig. 6-2 output voltage in parallel use mode, typ. output voltage (single use, typ.) 0 4 8 12 28v 16 20 24 02 5 9/32 40a 15 5 10 20 30 35 adjustment range output current a: continuous current b: intermitted current a b output voltage (parallel use, typ.) 22v 0816 23v 24v 25v 29v 26v 27v 28v 24a 20 12 4 adjustment range factory setting output current fig. 6-3 short-circuit on output, hiccup plus ? mode, typ. fig. 6-4 dynamic overcurrent capability, typ. output current 0 29a 18s 18s 18s 2s 2s 2s t short -circuit normal operation normal operation output voltage (dynamic behavior, < 12ms) 0 0 4 8 12 28v 16 20 24 70a 30 10 40 50 20 60 adjustment range output current
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 7. h old - up t ime ac 100v ac 120v ac 230v hold-up time typ. 65ms 65 ms 65ms at 24v, 10a, see fig. 7-1 min. 54ms 54ms 54ms at 24v, 10a, see fig. 7-1 typ. 32ms 32ms 32ms at 24v, 20a, see fig. 7-1 min. 24ms 24ms 24ms at 24v, 20a, see fig. 7-1 fig. 7-1 hold-up time vs. input voltage fig. 7-2 shut-down behavior, definitions 0 10 20 30 40 80ms 85 120 155 190 230vac input voltage 50 60 hold-up time 24v, 20a, typ. 24v, 10a, min. 24v, 10a, typ. 70 24v, 20a, min. - 5% hold-up time zero transition output voltage input voltage 10/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 8. dc-ok r elay c ontact this feature monitors the output voltage on the output termina ls of a running power supply. contact closes as soon as the output voltage reaches typ. 90% of the adjusted output voltage level. contact opens as soon as the output voltage dips more than 10% belo w the adjusted output voltage. short dips will be extended to a signal length of 100ms. dips shorter th an 1ms will be ignored. switching hysteresis 1v contact ratings maximal 60vdc 0.3a, 30v dc 1a, 30vac 0.5a, resistive load minimal permissible load: 1ma at 5vdc isolation voltage see dielec tric strength table in section 18. fig. 8-1 dc-ok relay contact behavior 100ms 0.9* v adj < 1ms 10% 11/32 v out = v adj open open closed closed > 1...4ms 9. r emote on / off f unction (cp20.241-v1 only ) this feature allows to switch-off the power supply output with a signal switch or transistor. a link between pin 15 and 16 turns the power supply on. pin 15 is referenced to the (-) output voltage. 16 15 remote on/off the open-loop voltage between pi n 16 and pin 15 can be up to 18v. the maximum current, when in remote on mode, can be up to 2.5ma. the threshold level to switch-off th e output is typically 5v and the tu rn-on threshold is typically 9v. 16 15 remote on/off when multiple power supplies are connected in para llel, pin 15 and pin 16 are also allowed to be paralleled to control all units with the same switch or transistor. please note: the remote on/off functi on has no safety feature included. fig. 9-1 the switch-off and the turn-on timing time output voltage remote on/off <1s a b a b 1s pulses shorter than 1s will be extended to 1s c c >1s 15-16 linked 15-16 open a: turn-on delay acc. fig. 3-2 b: rise time acc. fig. 3-2 c: no active discharge of the output after switch-off
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 10. e fficiency and p ower l osses ac 100v ac 120v ac 230v efficiency typ. 93.6% 94.2% 95.6% at 24v, 20a typ. 93.5% 94.1% 95.5% at 24v, 24a (power boost) average efficiency *) typ. 93.2% 93.8% 95.0% 25% at 5a, 25% at 10a, 25% at 15a. 25% at 20a power losses typ. t.b.d. t.b.d. t.b.d. cp20.24 1-v1 in remote off mode typ. 2.5w 2.2w 2.2w at 24v, 0a typ. 16.0w 15.0w 12.5w at 24v, 10a typ. 32.8w 29.6w 22.1w at 24v, 20a typ. 40.0w 36.1w 27.1w at 24v, 24a (power boost) *) the average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100% of the nominal load for the rest of the time. fig. 10-1 efficiency vs. output current at 24v, typ fig. 10-2 losses vs. output current at 24v, typ. efficiency 12/32 4 6 8 101214 1820 24a 87 88 90 91 92 93 94 95 96% output current 16 22 ( a ) ( b ) ( c ) (a) 100vac (b) 120vac (c) 230vac power losses 0 2 6 8 12 14 24a 5 10 20 30 0 40w 18 20 4 10 16 output current ( a ) ( b ) ( c ) (a) 100vac (b) 120vac (c) 230vac 35 25 15 22 fig. 10-3 efficiency vs. input voltage at 24v, 20a, typ. fig. 10-4 losses vs. input voltage at 24v, 20a, typ. efficiency power losses 120 180 230 264vac 90 91 92 93 input voltage 94 95 96% 120 180 230 264vac 10 15 20 25 input voltage 30 35 40w 100 100
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 13/32 p r e l i m i n a r y 11. l ifetime e xpectancy the lifetime expectancy shown in the table indicates the minimum operating hou rs (service life) a nd is determined by the lifetime expectancy of the built-in el ectrolytic capacitors. lifetime expectan cy is specified in operational hours and is calculated according to the capaci tors manufacturer sp ecification. the manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h ). any number exceeding th is value is a calculated theoretical lifetime which can be used to compare devices. ac 100v ac 120v ac 230v lifetime expectancy 123 000h 149 0 00h 173 000h at 24v, 10a and 40c 348 000h 422 000h 488 000h at 24v, 10a and 25c 48 000h 60 000h 94 000h at 24v, 20a and 40c 136 000h 169 000h 265 000h at 24v, 20a and 25c 23 000h 31 000h 54 000h at 24v, 24a and 40c 64 000h 88 000h 152 000h at 24v, 24a and 25c 12. mtbf mtbf stands for mean t ime between f ailure, which is calculated according to statistical device fa ilures, and indicates reliability of a device. it is the statisti cal representation of the li kelihood of a unit to fail and does not necessarily represent the life of a product. the mtbf figure is a statistica l representation of the likeli hood of a device to fail. a mt bf figure of e.g. 1 000 000h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the fi eld. however, it can not be determined if the failed unit has b een running for 50 000h or only for 100h. for these types of units the mttf ( mean t ime t o f ailure) value is the same value as the mtbf value. ac 100v ac 120v ac 230v mtbf sn 29500, iec 61709 422 000h 445 000h 590 000h at 24v, 20a and 40c 790 000h 832 000h 1 060 000h at 24v, 20a and 25c mtbf mil hdbk 217f 186 000h 191 000h 226 000h at 24v, 20a and 40c; ground benign gb40 256 000h 263 000h 313 000h at 24v, 20a and 25c; ground benign gb25 40 000h 42 000h 50 000h at 24v, 20a and 40c; ground fixed gf40 53 000h 55 000h 67 000h at 24v, 20a and 25c; ground fixed gf25
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 13. f unctional d iagram fig. 13-1 functional diagram cp20.241, cp20.241-c1, cp20,241-s1, cp20.242 output over- voltage protection pfc converter output voltage regulator power converter output filter output voltage monitor output power manager temper- ature shut- down input fuse input filter input rectifier active inrush limiter v out l n dc-ok contact dc-ok led link for parallel use dc-ok relay + + - - - fig. 13-2 functional diagram cp20.241-s2 output over- voltage protection pfc converter output voltage regulator power converter output filter output voltage 14/32 monitor output power manager temper- ature shut- down input fuse input filter input rectifier active inrush limiter l n v out + dc-ok contact dc-ok led link for parallel use dc-ok relay - - fig. 13-3 functional diagram cp20.241-v1 output over- voltage protection pfc converter output voltage regulator power converter output filter output voltage monitor output power manager temper- ature shut- down input fuse input filter input rectifier active inrush limiter v out l n dc-ok contact dc-ok led dc-ok relay + + - - - remote on/off remote on/off link for parallel use
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 15/32 p r e l i m i n a r y 14. t erminals and w iring the terminals are ip20 finger sa fe constructed and suitable fo r field- and factory wiring. cp20.241, cp20.241-c1, cp20.241-v1, cp20.242 input output signal terminals type screw termination screw termination push-in termination solid wire max. 6mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire max. 4mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 20-10 awg 20-10 awg 24-16 max. wire diameter (including ferrules) 2.8mm 2.8mm 1.6mm recommended tightening tor que max. 1nm, 9lb-in max. 1nm, 9lb-in - wire stripping length 7mm / 0.28inch 7mm / 0.28inch 7mm / 0.28inch screwdriver 3.5mm slotted or cross- head no 2 3.5mm slotted or cross- head no 2 3mm slotted to open the spring cp20.241-s1 input output signal terminals type quick-connect spring- clamp termination quick-connect spring- clamp termination push-in termination solid wire max. 6mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire max. 4mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 20-10 awg 20-10 awg 24-16 max. wire diameter (includi ng ferrules) 2.8mm 2.8mm 1.6mm wire stripping length 10mm / 0.4inch 10mm / 0.4inch 7mm / 0.28inch screwdriver - - 3mm slotted to open the spring cp20.241-s2 input output signal terminals type push-in termination push-i n termination push-in termination solid wire max. 2.5mm 2 max. 10mm 2 max. 1.5mm 2 stranded wire max. 2.5mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire with ferrules max. 1.5mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 24-12 awg 24-8 awg 24-16 max. wire diameter (includi ng ferrules) 2.3mm 3.3mm 1.6mm wire stripping length 10mm / 0.4inch 15mm / 0.6inch 7mm / 0.28inch screwdriver 3.0mm slotted to open the spring 3.5mm slotted to open the spring 3mm slotted to open the spring instructions for wiring: a) use appropriate copper cables that are designed for minimum operating temperatures of: 60c for ambient up to 45c and 75c for ambient up to 60c and 90c for ambient up to 70c minimum. b) follow national installation c odes and installation regulations! c) ensure that all strands of a strande d wire enter the terminal connection! d) unused terminal compartments should be securely tightened.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y daisy chaining: daisy chaining (jumping from one power supply output to the next) is not a llowed. use a separate distribution terminal block as shown in fig. 14-1 . fig. 14-1 using distribution terminals distribution terminals load + - power supply + + - - output power supply + + - - output 16/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 15. f ront s ide and u ser e lements fig. 15-1 front side cp20.241, cp20.241-c1 cp20.241-s1 cp20.241-s2 cp20.241-v1 cp10.242 a input terminals n, l line input pe (protective earth) input b output terminals cp20.241-s2: one + pole and two identical - poles all other units: two identical + poles an d three identical - poles + positive output C ne gative (return) output c output voltage potentiometer d dc-ok led (green) on, when the output voltage is >90% of the adjusted output voltage e dc-ok relay contact the dc-ok relay contact is synchronize d with the dc-ok led. see chapter 8 for details. f parallel use single use link link the two terminal poles when power supplies are connect ed in parallel. in order to achieve a sharing of the load current between the i ndividual power supplies, the parallel us e regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. see also chapter 24.4 . g remote on/off input pin 15 and 16 must be connected to turn the power supply off. see chapter 9 for details. 17/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 18/32 p r e l i m i n a r y 16. emc the emc behavior of the device is de signed for applications in industrial environment as well as in residential, commercial and light i ndustry environments. emc immunity according to the generic standards en 61000-6-1 and en 61000-6-2. electrostatic disc harge en 61000-4-2 contact discharge air discharge 8kv 15kv criterion a criterion a electromagnetic rf field en 61000-4-3 80mhz-2.7ghz 20v/m criterion a fast transients (burst) en 61000-4-4 input lines output lines signal lines (coupling clamp) 4kv 2kv 2kv criterion a criterion a criterion a surge voltage on input en 61000-4-5 l ? n l ? pe, n ? pe 2kv 4kv criterion a criterion a surge voltage on output en 61000-4-5 + ? - + / - ? pe 1kv 2kv criterion a criterion a surge voltage on dc-ok en 61000-4-5 signal lines ? pe 1kv criterion a conducted disturbance en 61000-4- 6 0.15-80mhz 20v criterion a mains voltage dips en 61000-4-11 0% of 100vac 40% of 100vac 70% of 100vac 0% of 200vac 40% of 200vac 70% of 200vac 0vac, 20ms 40vac, 200ms 70vac, 500ms 0vac, 20ms 80vac, 200ms 140vac, 500ms criterion a criterion c criterion a criterion a criterion a criterion a voltage interruptions en 61000-4-11 0% of 200vac (=0v) 5000ms criterion c voltage sags semi f47 0706 dips on the input voltage according to semi f47 standard 80% of 120vac (96vac) 70% of 120vac (84vac) 50% of 120vac (60vac) 1000ms 500ms 200ms criterion a criterion a criterion a powerful transients vde 0160 over entire load range 750v, 0.3ms criterion a criterions: a: power supply shows normal operation behavior within the defined limits. c: temporary loss of function is possible. device may shut-down and restarts by itself. no damage or hazards for the device wil l occur. emc emission according to the generic standards en 61000-6-3 and en 61000-6-4. conducted emission input lines en 55011, en 55022, fcc part 15, cispr 11, cispr 22 class b conducted emission output lines iec/cispr 16-1-2, iec/cispr 16-2-1 t.b.d. for information only, not mandatory for en 61000-6-3 radiated emission en 55011, en 55022 class b harmonic input current en 61000-3- 2 class a equipment: fulfilled class c equipment: fulfilled in the load range from 8 to 24a voltage fluctuations, flic ker en 61000-3-3 fulfilled, tested with constant current loads, non pulsing this device complies with fcc part 15 rules. operation is subjected to fo llowing two conditions: (1) this device may not cause ha rmful interference, and (2) this device must accept any interferenc e received, including interference that may cause undesired operation.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 19/32 p r e l i m i n a r y switching frequencies pfc converter 100khz fixed frequency main converter 80khz to 140khz output load dependent auxiliary converter 60khz fixed frequency
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 17. e nvironment operational temperature -25c to +70c (-13f to 158f) the operational temperature is the ambient or surrounding temperature and is defined as the air temperature 2cm below the device. storage temperature -40c to +85c (-40 f to 185f) for storage and transportation output de-rating 6.4w/c 12w/c 30w/1000m or 5c/1000m 18w/-5kpa or 3c/-5kpa between +45c and +60c (113f to 140f) between +60c and +70c (140f to 158f) for altitudes >2000m (6560ft), see fig. 17-2 for atmospheric pressures <80kpa, see fig. 17-2 the de-rating is not hardware controlled. the customer has to take care by himself to stay below the de-rated current limits in order not to overload the unit. humidity 5 to 95% r.h. according to iec 60068-2-30 do not energize while c ondensation is present. atmospheric pressure 110-47kpa see fig. 17-2 for details altitude up to 6000m (20 000ft) see fig. 17-2 for details over-voltage category iii according to iec 60664-1 for altitudes up to 2000m ii according to iec 60664-1 for altitudes from 2000 to 6000m and atmospheric pressures from 80 to 47kpa degree of pollution 2 according to iec 62477-1, not conductive vibration sinusoidal 2-17.8hz: 1.6mm; 17.8-500hz: 2g 2 hours / axis according to iec 60068-2-6 shock 30g 6ms, 20g 11ms 3 bumps / direction, 18 bumps in total according to iec 60068-2-27 shock and vibration is tested in combination with din-rails according to en 60715 with a height of 15mm and a thickness of 1.3mm and standard orientation. labs compatibility as a rule, only non-silicon precipitating ma terials are used. the unit conforms to the labs criteria and is suitable for use in paint shops. corrosive gases tested according to isa-71.04-1985, severity level g3 and iec 60068-2-60 test ke method 4 for a service life of mini mum 10years in thes e environments. audible noise some audible noise ma y be emitted from the power supply during no load, overload or short circuit. fig. 17-1 output current vs. ambient temp. fig. 17-2 output current vs. altitude allowed output current at 24v 0 20/32 -25 0 20 40 70c 4a 8a 12a 16a 20a 24a 60 b a a...90 to 264vac, continuous b... short term 2000m 4000m 6000m 4a 8a 12a 16a 20a 24a altitude allowed output current at 24v b c a . . . t a m b < 6 0 c b . . . t a m b < 5 0 c c . . . t a m b < 4 5 c d . . . s h o r t t e r m a d ap *) 80kpa 62kpa 47kpa 110kpa 0m ambient temperature *) atmospheric pressure
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 21/32 p r e l i m i n a r y 18. s afety and p rotection f eatures isolation resistance min. 500mohm at deliv ered condition between input and output, measured with 500vdc min. 500mohm at delivered c ondition between input and pe, measured with 500vdc min. 500mohm at delivered condition between output and pe, measured with 500vdc min. 500mohm at delivered c ondition between output and dc-ok contacts, measured with 500vdc pe resistance max. 0.1ohm resistance be tween pe terminal and the housing in the area of the din-rail mounting bracket. output over-voltage pr otection typ. 30.5vdc max. 32vdc in case of an internal defect , a redundant circuit limits the maximum output voltage. the output shuts dow n and automatically attempts to restart. class of protection i according to iec 61140 a pe (protective earth) connection is required degree of protection ip 20 according to en/iec 60529 over-temperature protection included output shut-down with automatic restart. temperature sensors are installed on critical components inside the unit and turn the unit off in safety critical situati ons, which can happen e.g. when ambient temperature is too high, ventilation is obstructed or the de-r ating requirements are not followed. there is no correlation between the operating temperature and turn-off temperature since this is dependent on input voltage, load and installation methods. input transient protection mov (metal oxide varistor) for protection values see chapter 16 (emc). internal input fuse included not us er replaceable slow-blow high-braking capacity fuse touch current (leakage current) typ. 0.12ma / 0.31ma at 100vac, 50hz, tn-,tt-mains / it-mains typ. 0.18ma / 0.45ma at 120vac , 60hz, tn-,tt-mains / it-mains typ. 0.30ma / 0.76ma at 230vac , 50hz, tn-,tt-mains / it-mains max. 0.16ma / 0.38ma at 110vac, 50hz, tn-,tt-mains / it-mains max. 0.23ma / 0.55ma at 132vac, 60hz, tn-,tt-mains / it-mains max. 0.39ma / 0.94ma at 264vac, 50hz, tn-,tt-mains / it-mains penetration protection max. 5mm in diameter e.g. screws, small parts
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 19. d ielectric s trength the output voltage is floati ng and has no ohmic connection to the ground. type and r outine tests are conducted by the manufacturer. field tests may be c onducted in the field using the appropr iate test equipment which applies the voltage with a slow ramp (2s up and 2s down). connect all input-terminals togeth er as well as all ou tput poles before conducting the test. when testing, set the cut-off current settings to the value in the table below. fig. 19-1 dielectric strength a b c d type test 60s 2500vac 3000vac 1000vac 500vac routine test 5s 2500vac 2500vac 500vac 500vac field test 5s 2000vac 2000vac 500vac 500vac cut-off current setting for field test > 10ma > 10ma > 20ma > 1ma ad c b b *) n l input dc-ok earth, pe output we recommend that either the + pole, the C pole or any other part of the output circuit shall be co nnected to the pr otective earth system. this helps to avoid si tuations in which a load starts unexpectedly or can not be swit ched off when unnoticed earth faults occur. 22/32 - + b*) when testing input to dc-ok ensure that the maximal voltage between dc-ok and the output is not exceeded (column d). we recommend connecting dc-ok pins and the output pins together when performing the test.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 20. a pprovals ec declaration of conformity the ce mark indicates conformance with the - emc directive, - low-voltage directive and the - atex directive iec 60950-1 2 nd edition (except for cp20.242) cb scheme, information technology equipment ul 508 (except for cp20.242) ind. cont. e q. listed for use as industri al control equipment; u.s.a. (ul 508) and canada (c22.2 no. 107-1-01); e-file: e198865 ul 60950-1 2 nd edition (except for cp20.242) recognized for use as information technology equipment, level 5; u.s.a. (ul 60950-1) and canada (c22.2 no. 60950-1); e-file: e137006 applicable for altitudes up to 2000m. ansi / isa 12.12.01 class i div 2 pending hazardous location class i div 2 t4 groups a,b,c,d systems; u.s.a. (ansi / isa 12.12.01) and canada (c22.2 no. 213) en 60079-0, en 60079-7 atex (except for cp20.242) ii 3g ex ec nc ii t4 gc approval for use in hazardous locati ons zone 2 category 3g. number of atex certificate: eps 17 atex 1 089 x iec 60079-0, iec 60079-7 (except for cp20.242) iecex suitable for use in class 1 zone 2 groups iia, iib and iic locations. number of iecex certificate: eps 17.0046x eac tr registration (except for cp20.241-v1 and cp20.242) registration for the eurasian customs union market (russia, kazakhstan, belarus) 21. o ther f ulfilled s tandards rohs directive directive 2011/65/eu of the european parliament and the council of june 8 th , 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. reach directive directive 1907/2006/eu of the european parliament and the council of june 1 st , 2007 regarding the registration, evaluation, authorisation a nd restriction of chemicals (reach) iec/en 61558-2-16 (annex bb) safety isolating transformer safety isolating transformers co rresponding to part 2-6 of the iec/en 61558 23/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 22. p hysical d imensions and w eight width 48mm 1.89 height 124mm 4.88 depth 127mm 5.0 the din-rail height must be added to the unit depth to calculate the total required installation depth. weight 830g / 1.83lb din-rail use 35mm din-rails according to en 60715 or en 50022 with a height of 7.5 or 15mm. housing material body: aluminium alloy cover: zinc-plated steel installation clearances see chapter 2 fig. 22-1 front view cp20.241 cp20.241-s1 cp20.241-s2 cp20.241-v1 cp10.241-c1 cp10.242 fig. 22-2 side view all dimensions in mm all dimensions in mm 24/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 23. a ccessories 23.1. uf20.241 b uffer m odule this buffer unit is a supplementary device for dc 24v power supplies. it delivers power to bridge typical mains failures or extends the hold-up time after turn-o ff of the ac power. in times when the power supply provides sufficient voltages, the buffer unit stores energy in integrated el ectrolytic capacitors. in case of mains voltage fa ult, this energy is released again in a regulated process. one buffer module can de liver 20a additional current. dc buffer unit(s) power supply load ac + - the buffer unit does not require any control wi ring. it can be adde d in parallel to the load circuit at any given point. buffer units can be added in pa rallel to increase the output ampacity or the hold-up time. 23.2. yr40.241/242 - r edundancy m odules the yr40.241 and yr40.242 redundancy modules ar e equipped with two input channels (each 20a), which are individually decoupled by utilizing mosfet technology. the output current can be as high as 40a. using mo sfets instead of diodes reduces the heat generation and the voltage drop between in put and output. the modules do not require an additional auxiliary voltage and are self-pow ered even in case of a short circuit across the output. due to the low power losses, the units are very slender and only require 36mm width on the din-rail. be found in chapter 24.5 . it. the yr40.241 can be used in combination wi th any power supply wh ile the yr40.242 is optimized for use in combination with po wer supplies featured with the hiccupplus overload behavior. the terminal arrangement of the yr40.242 is re versed to the yr40.241. further information and wiring configur ations can 23.3. yr40.245 - r edundancy m odules the yr40.245 is a 40a single channel redundanc y module, which is eq uipped with a plug connector on the output. the pl ug connector allows replac ing the power supply or the redundancy module while the system is running . the plug connector avoids that the output wires can touch and short the load circu the yr40.245 is very slender and only requires 46mm width on the din-rail. it also utilizes mosfet technology instead of diodes for low heat generati on and a minimal voltage drop between input and output. it does not require an additional auxiliary voltage and is self- powered even in case of a short circuit across the output. further information and wiring configur ations can be found in chapter 24.5 . 25/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 23.4. zm5.wall C w all /p anel m ount b racket this bracket is used to mount the devices on a wall/panel without utilizi ng a din-rail. it is suitable for cp20.241, cp20.241-c1, cp20.241- v1, cp20.241-s1 and cp20.241-s2. the bracket can be mounted without detaching the din-rail brackets. fig. 23-1 isometric view (picture shows the cp20.241) fig. 23-2 isometric view- (picture shows the cp20.241) fig. 23-3 isometric view (picture shows the cp20.241) fig. 23-4 wall/panel mounting, front view (picture shows the cp20.241) fig. 23-5 hole pattern for wall mounting fig. 23-6 wall/panel mounting, side view (picture shows the cp20.241) 26/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24. a pplication n otes 24.1. p eak c urrent c apability the unit can deliver peak currents (up to several milliseconds) which are higher than the sp ecified short term currents. this helps to start current demanding loads. solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. the inrush current demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal output current (including the powerboo st). the same situation applies when starting a capacitive load. the peak current capability also ensures the safe operati on of subsequent circuit breakers of load circ uits. the load branches are often individually protected with circuit breakers or fuses. in ca se of a short or an overload in one branch circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. this avoids voltage loss in adjacent circuits. the extra current (peak current) is supplie d by the power converter and the built -in large sized output capacitors of the power supply. the capacito rs get discharged during such an event, which causes a vo ltage dip on the output. the following three examples show typical voltage dips for resistive loads: fig. 24-1 40a peak current for 50ms, typ. (2x the nominal current) fig. 24-2 100a peak current for 5ms, typ. (5x the nominal current) 27/32 10ms/div output voltage output current 24v 0a 40a 16v output voltage output current 24v 1ms/div 0a 100a 17v fig. 24-3 60a peak current for 12ms, typ. (3x the nominal current) 24v 0a 12ms 20v 60a output voltage output current please note: the dc-ok relay might trigger when the voltage dips more than 10% for longer than 1ms. peak current voltage dips typ. from 24v to 16v at 40a for 50ms, resistive load typ. from 24v to 21v at 10 0a for 2ms, resistive load typ. from 24v to 17v at 10 0a for 5ms, resistive load
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.2. o utput c ircuit b reakers standard miniature circuit breakers (mcbs or ul 1077 circuit breakers) are commonly used for ac-supply systems and may also be used on 24v branches. mcbs are designed to protect wires and ci rcuits. if the ampere value and the char acteristics of the mcb are adapted to the wire size that is used, the wiring is considered as thermally safe rega rdless of whether the mcb opens or not. to avoid voltage dips and under-voltage situations in adjacent 24v branches wh ich are supplied by the same source, a fast (magnetic) tripping of the mcb is desired. a quick shutdown within 10ms is necessary corresponding roughly to the ride-through time of plc's. this re quires power supplies with high current reserves and large output capacitors. furthermore, the impedance of the faulty branch must be sufficiently small in or der for the current to actually flow. the best current reserve in the power su pply does not help if ohms law does not permit current flow. the following table has typical test results showing which b- and c-characteristic mcbs magneti cally trip depending on the wire cross section and wire length. fig. 24-4 test circuit maximal wire length *) for a fast (magnetic) tripping: 0.75mm2 1.0mm2 1.5mm2 2.5mm2 c-2a 31 m 37 m 63 m 98 m c-3a 28 m 34 m 51 m 78 m c-4a 18 m 25 m 38 m 58 m c-6a 9 m 11 m 18 m 26 m c-8a 6 m 7 m 12 m 14 m c-10a 4 m 6 m 11 m 13 m c-13a 2 m 2 m 4 m 7 m b-6a 23 m 28 m 46 m 66 m b-10a 11 m 14 m 19 m 32 m b-13a 7 m 11 m 16 m 29 m b-16a 5 m 6 m 8 m 15 m b-20a 1 m 1 m 2 m 4 m mcb power supply 28/32 ac dc + - load + - b-25a 1 m wire length s1... fault simulation switch s1 *) dont forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and C wi re).
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.3. s eries o peration power supplies of the same type can be connected in series for higher output voltages. it is possible to connec t as many units in series as needed, providing the sum of the output volt age does not exceed 150vdc. voltages with a potential above 60vdc are not selv any more and can be dangerous. such voltages must be installed with a protection against touching. unit a input output unit b - + - + load + - input output avoid return voltage (e.g. from a decelerating motor or battery) which is applied to the output terminals. keep an installation clearance of 15 mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. do not use power supplies in series in mo unting orientations other than the standard mounting orientat ion (input terminals on bottom of the unit). pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies. 24.4. p arallel u se to i ncrease o utput p ower power supplies can be paralleled to increase the output power. the output voltage of all power supplie s shall be adjusted to the same value (100mv) in single use mode with the same load c onditions on all units, or the units can be left with the factory settings. after the adjustments, set the unit to parallel use mode, in order to achieve load sh aring. the parallel use mode regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. see also chapter 6 . 29/32 if more than three units are connected in parallel, a fuse or circuit breaker with a rating of 30a or 32a is require d on each output. alternatively, a diode or redundancy module can also be utilized. energize all units at the same ti me to avoid the overload hiccup plus mode. it also might be necessary to cycle the input power (turn-off for at least five seconds), if the output was in hiccup plus mode due to overload or short circui ts and the required output current is higher than the current of one unit. unit a unit b - + - + load + - input output input output keep an installation clearance of 15mm (left / right) be tween two power supplies and avoid installing the power supplies on top of each other. do not use power supplies in paralle l in mounting orientations other than the standard mounting orientation (input terminals on bottom of the unit) or in an y other condition where a derating of the output current is re quired (e.g. altitude, above 60c, ). pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.5. p arallel u se for r edundancy please note that there ar e variants with built-in redundancy are availabl e in the cp20 series. che ck cp20.241-rx units. 1+1 redundancy: power supplies can be paralleled fo r redundancy to gain higher system ava ilability. redundant systems require a certain amount of extra power to support th e load in case one power supply unit fa ils. the simplest way is to put two power supplies in parallel. this is called a 1+1 redundancy. in case one power supply unit fails, the other one is automatically able to support the load current without any interrupt ion. it is essential to use a redundancy module to decouple power supplies from each other. this prevents that the defective uni t becomes a load for the other power supplies and the output voltage ca nnot be maintained any more. recommendations for building redundant power systems: - use separate input fuses for each power supply. - use separate mains systems for each pow er supply whenever it is possible. - monitor the individual power supply units. theref ore, use the dc-ok signal of the power supply. - it is desirable to set the output voltag es of all units to the same value ( 100m v) or leave it at the factory setting. - set the power supply in to parallel use mode. pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies. n+1 redundancy: redundant systems for a higher power dema nd are usually built in a n+1 method. e.g. four power s upplies, each rated for 20a are paralleled to bui ld a 60a redundant system. pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies. keep an installation clearance of 15mm (left / right) be tween two power supplies and avoid installing the power supplies on top of each other. do not use power supplies in parallel in mounting or ientations other than the standa rd mounting orientation or in any other condition, where a de-rati ng of the output current is required. wiring examples for 1+1 and n+1 redundancy: fig. 24-5 1+1 redundant configuration for 20a load current with a dual redundancy module fig. 24-6 n+1 redundant configuration for 60a load current with multiple power supplies and redundancy modules 30/32 l n pe 20a load failure monitor i yr40.241 redundancy module output input 1 input 2 + + - - + - optional power supply 24v,20a dc- ok ++ -- lnpe input output o o power supply 24v,20a dc- ok ++ -- lnpe input output o o i alternatively, the yr40.242 redundancy module can be used but has the input and output terminals reversed. l n pe 60a load failure monitor i yr40.241 redundancy module output input 1 input 2 + + - - + - optional power supply 24v,20a dc- ok ++ -- lnpe output input o o power supply 24v,20a dc- ok ++ -- lnpe output input o o i yr40.241 redundancy module output input 1 input 2 + + - - power supply 24v,20a dc- ok ++ -- + - lnpe output input o o power supply 24v,20a dc- ok ++ -- output input o o lnpe i i alternatively, the yr40.242 redundancy module can be used but has the input and output terminals reversed.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.6. c harging of b atteries the power supply can be used to charge lead-acid or maintenanc e free batteries. two 12v sla or vrla batteries are needed in series connection. instructions for charging batteries: a) set output voltage (measured at no load and at the battery end of the cable) very precisely to the end-of-charge voltage. end-of-charge voltage 27. 8v 27.5v 27.15v 26.8v battery temperature 10c 20c 30c 40c b) use a 30a or 32a circuit breaker (or blocking diode) between th e power supply and the battery. c) ensure that the output current of the power supply is below the allowe d charging current of the battery. d) ensure that the ambient temperature of the power supply stays below 40c. e) use only matched batteries when putting 12v types in series. f) the return current to the power supply (battery discharge current) is ty p. 3.5ma when the power supply is switched off (except in case a blocking diode is utilized). 24.7. o peration on t wo p hases 240v +10% max. l2 l1 l3 l n pe power supply ac dc the power supply can also be used on two-phases of a three-phase- system. such a phase-to-phase connection is allowed as long as the supplying voltage is below 240v +10% . 24.8. u se in a t ightly s ealed e nclosure when the power supply is installed in a tightly sealed encl osure, the temperature inside the enclosure will be higher than outside. in such situations, th e inside temperature defi nes the ambient temperatur e for the power supply. the following measurement results can be used as a reference to estimate the temperature rise inside the enclosure. the power supply is placed in the middle of the box , no other heat producing items are inside the box enclosure: rittal typ ip66 box pk 9519 100, plastic, 180x180x165mm load: 24v, 16a; (=80%) lo ad is placed outside the box input: 230vac temperature inside enclosure: 51.7c (i n the middle of the right side of the pow er supply with a distance of 2cm) temperature outside enclosure: 25.9c temperature rise: 25.8k 31/32
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2, cp20.241-v1, cp20.242 cp-series 24v, 20a, 480w, s ingle p hase jan. 2018 / rev. 0.5 ds-cp20.241-en - all parameters are typical values specified at 230vac, 50hz input voltage, 24v, 20a outpu t load, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.9. m ounting o rientations mounting orientations ot her than all terminals on the bottom require a reduction in continuous output power or a limitation in the maximum allowed ambien t temperature. the amount of reduction influences the lifetime expectancy of the power supply. therefore, tw o different derating curves for cont inuous operation can be found below: curve a1 recommended output current. curve a2 max allowed output current (res ults in approximately half the lifetime expectancy of a1). fig. 24-7 mounting orientation a (standard orientation) power supply output output current 0 10 20 30 40 60c 24a 32/32 input a 1 6 12 18 ambient temperature 50 fig. 24-8 mounting orientation b (upside down) power supply output input output current 0 10 20 30 40 60c 24a 6 12 18 50 ambient temperature a 2 a 1 fig. 24-9 mounting orientation c (table-top mounting) output current 0 10 20 30 40 60c 24a 6 12 18 a 1 a 2 ambient temperature 50 fig. 24-10 mounting orientation d (horizontal cw) power supply output input output current 0 10 20 30 40 60c 24a 6 12 18 a 1 a 2 ambient temperature 50 fig. 24-11 mounting orientation e (horizontal ccw) power supply output input output current 0 10 20 30 40 60c 6 12 18 24a 50 ambient temperature a 1 a 2

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