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pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y p ower s upply ? ac 200-240v regional input ? cost optimized without co mpromising quality or reliability ? width only 49mm ? efficiency 95.7% ? full power between -10c and +55c ? dc-ok relay contact included ? 3 year warranty 1/21 g eneral d escription these piano series units are extraordinarily compact, industrial grade power su pplies that focus on the essential features needed in todays industrial applications. the excellent cost/performance ratio presents many new and exciting opportunities without compromising quality or reliability. the mechanically robust housing is made of a high- grade, reinforced molded material, which permits the units to be used in surrou nding temperatures up to 70c. since typical industrial appl ications do not require multiple mains inputs, the reduction to a regional input voltage range (ac 200-240v) simplifies the circuitry and has significant advantages fo r reliability, efficiency and cost. the addition of a dc-ok signa l makes the unit suitable for many industry applicat ions such as: process, automation and many other cr itical applications where preventive function monitoring can help to avoid long downtimes. s hort - form d ata output voltage dc 24v adjustment range 24 - 28v output current 20a at 24v, amb <55c 15a at 24v, amb <70c 17.1a at 28v, amb <55c 12.8a at 28v, amb <70c output power 480w ambient <55c 360w ambient <70c output ripple < 100mvpp 20hz to 20mhz ac input voltage ac 200-240v 10% mains frequency 50-60hz 6% ac input current 2.2a at 230vac power factor 0.99 at 230vac ac inrush current typ. 28a peak at 230vac, 40c efficiency 95.7% at 230vac losses 21.6w at 230vac temperature range -10c to +70c operational derating 8w/c +55 to +70c hold-up time 30ms at 230vac dimensions 49x124x124mm wxhxd weight 620g / 1.37lb o rder n umbers power supply pic480.241c 24-28v standard unit with dc-ok contact accessory yr40.242 redundancy module pird20.241 redundancy module m arkings ind. cont. e q. ul 508 planned ul 60950-1 planned emc, lvd jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany
pic480.241c piano-series 24v, 20a, s ingle p hase i nput 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 ...............................................................4 4. dc-input ...............................................................5 5. input inrush current ...........................................5 6. output .................................................................6 7. hold-up time .......................................................7 8. dc-ok relay contact ..........................................7 9. efficiency and power losses ................................8 10. lifetime expectancy and mtbf ...........................8 11. functional diagram .............................................9 12. terminals and wiring ..........................................9 13. front side and user elements ...........................10 14. emc ....................................................................11 15. environment ......................................................12 16. protection features ...........................................13 17. safety features ..................................................13 18. dielectric strength ............................................14 19. approvals .......................................................... 15 20. rohs, reach and othe r fulfilled standards .. 15 21. physical dimensions and weight ..................... 16 22. accessory ........................................................... 17 22.1. yr40.242 redundancy module ................17 22.2. pird20.241 redundancy module .............17 23. application notes ............................................. 18 23.1. peak current capability ...........................18 23.2. back-feeding loads ..................................18 23.3. external input protection .........................19 23.4. parallel use to increase output power ....19 23.5. parallel use for 1+1 redundancy .............19 23.6. series operation .......................................20 23.7. inductive and capacitive loads ................20 23.8. charging of batteries ...............................20 23.9. operation on two phases ........................21 23.10. use in a tightly sealed enclosure ............21 the information presented in this docume nt is believed to be a ccurate and reliable and ma y change without notice. no part of this document may be reproduc ed or utilized in any form without pe rmission in writing from the publisher. 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. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 2/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput 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 this device may only be installed and put into opera tion by qualified personnel. this device does not contain serviceable parts. the tripping of an internal fuse is caused by an internal defect. if damage or malfuncti on should occur during installation or operation, i mmediately turn power off and send unit to the factory for inspection. mount the unit on a din-rail so that the input terminals are located on the bottom of the unit. this 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 clearance s: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are recommended when the device is loaded permanently with more than 50% of th e rated power. increase this clearance to 15mm in case the adjacent device is a heat source (e.g. another power supply). a disconnecting means shall be provided for the output of the power supplies when used in applications according to csa c22.2 no 107.1-01. warning risk of electrical shock, fi re, personal injury or death. - do not use the power supply without proper grounding (protective earth). - 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. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 3/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 3. ac-i nput ac input nom. ac 200-240v suitable fo r tn-, tt- and it mains networks ac input range min. 180-264v ac continuous operation min. 264-300vac < 500ms allowed voltage l or n to earth max. 300vac continuous, iec 62103 input frequency nom. 50C60hz 6% turn-on voltage typ. 152vac steady-state value, see fig. 3-1 shut-down voltage typ. 142vac steady-state value, see fig. 3-1 external input protection see recommendations in chapter 23.3 . input current typ. 2.2a at 24v, 20a, 230vac, see fig. 3-3 power factor *) typ. 0.99 at 24v, 20a, 230vac, see fig. 3-4 crest factor **) typ. 1.6 at 24v, 20a, 230vac start-up delay typ. 400ms see fig. 3-2 rise time typ. 60ms at 24v, 20a const. current load, 0mf load capacitance, see fig. 3-2 typ. 240ms at 24v, 20a const. current load, 20mf load capacitance, see fig. 3-2 turn-on overshoot max. 200 mv resistive load, see fig. 3-2 *) the power factor is the ratio of the true (or real) power to the apparent power in an ac circuit. **) the crest factor is the mathematical ratio of the peak value to rms value of the input current waveform. fig. 3-1 input voltage range, typ. fig. 3-2 turn-on behavior, definitions turn-on 180v rated input range max. 500ms v in p out 300vac 264v shut-down start-up delay rise time overshoot - 5% output voltage input voltage fig. 3-3 input current vs. output load at 24v fig. 3-4 power factor vs. output load 20a 0 2 4 6 8 10 12 14 0 0.5 1.0 1.5 2.0 2.5 3a input current, typ. 16 18 output current 20a 4 6 8 12 16 0.88 0.90 10 14 18 0.92 0.94 0.96 0.98 1.00 power factor, typ. 2 output current jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 4/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 4. dc-i nput do not operate this power supply with dc-input voltage. 5. i nput i nrush c urrent a ntc inrush limiter, which is bypassed by a relay contact during normal operation, limits the input inrush current after turn-on of th e input voltage. inrush current *) max. 35a peak 40c ambient, 230vac, cold start typ. 26a peak 40c ambient, 230vac, cold start typ. 19a peak 25c ambient, 230vac, cold start inrush energy *) max. 2.1a 2 s 40c ambient, 230vac, cold start *) the charging current into emi suppression capacitors is disregarded in the first microseconds after switch-on. fig. 5-1 input inrush current, typical behavior 230vac input, 24v, 20a output, 25c ambient fig. 5-2 input inrush current, zoom into first peak 230vac input, 24v, 20a output, 25c ambient 100ms/div input current 10a/div input voltage 500v/div output voltage 20v/div 2ms/div input current 10a/div ipeak = 20a jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 5/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 6. o utput output voltage nom. dc 24v adjustment range min. 24-28v guaranteed max. 30v ***) at clockwise end position of potentiometer factory settings typ. 24.1v 0.2%, at full load, cold unit line regulation max. 50mv 187-264vac load regulation max. 150mv static value, 0a ? 20a; see fig. 6-1 ripple and noise voltage max. 100mvpp 20hz to 20mhz, 50ohm output current nom. 20a at 24v, ambient temperature <55c, see fig. 6-1 nom. 15a at 24v, ambient temperature <70c, see fig. 6-1 nom. 17.1a at 28v, ambient temperature <55c, see fig. 6-1 nom. 12.8a at 28v, ambient temperature <70c, see fig. 6-1 output power nom. 480w ambient temperature <55c nom. 360w ambient temperature <70c overload behaviour cont. curre nt output voltage > 13vdc, see fig. 6-1 hiccup plus mode **) output voltage < 13vdc, see fig. 6-1 short-circuit cu rrent min. 21a *) load impedance 50mohm, see fig. 6-1 max. 25a *) load impedance 50mohm, see fig. 6-1 typ. 8.1a average (r.m.s.) cu rrent, load impedance 50mohm, see fig. 6-1 output capacitance typ. 4 300f included inside the power supply *) discharge current of output capacitors is not included. **) hiccup plus mode at heavy overloads (when output voltage falls below 13.5v), the power supply delivers continuous output current for 5s. after t his, the output is switched off for approx. 8s before a new start attempts with duration of 1s are automatically performed. this cycle i s repeated as long as the ov erload exists. if th e overload has been cleared, the device will ope rate normally. ***) this is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. i t is not guaranteed value which can be achieved. the typical value is about 28.5v. fig. 6-1 output voltage vs. output current, typ. fig. 6-2 short-circuit (50mohm) on output, hiccup plus mode, typ. output voltage 0 02 4 8 12 28v 16 20 24 5 30a 15 5 10 20 adjustment range output current continuous current hiccup plus mode output current 0 23a 8s 8s 8s 1s 1s 5s t short -circuit normal operation normal operation first pulse: 5s jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 6/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 7. h old - up t ime hold-up time typ. 65ms at 24v, 10a, 230vac, see fig. 7-1 min. 55ms at 24v, 10a, 230vac, see fig. 7-1 typ. 30ms at 24v, 20a, 230vac, see fig. 7-1 min. 23ms at 24v, 20a, 230vac, 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 102 120 155 190 230vac input voltage 50 60 hold-up time 70 a b c d a) 24v 10a typ. b) 24v 10a min. c) 24v 20a typ. d) 24v 20a min. - 5% hold-up time zero transition output voltage input voltage 8. dc-ok r elay c ontact this feature monitors the output voltage, which is produced by the power suppl y itself. it is indepe ndent of a back-fed voltage from a unit connected in parallel to the power supply output (e.g. redundant application). threshold voltage typ. 21.4v (fixed) contact closes as soon as the output voltage reaches 21.4v. contact opens as soon as the out put voltage falls below 21.4v. contact ratings max. 60vdc 0.3a, 30vdc 1a, 30vac 0.5a resistive load min. 1ma at 5vdc min. permissible load isolation voltage see dielec tric strength table in section 18. fig. 8-1 dc-ok relay contact behavior 21.4v open output voltage closed jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 7/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 9. e fficiency and p ower l osses efficiency typ. 95.7% at 24v, 20a, 230vac average efficiency *) typ. 95.2% 25% at 5a, 25% at 10a, 25% at 15a. 25% at 20a power losses typ. 1.35w at 24v, 0a, 230vac typ. 10.7w at 24v, 10a, 230vac typ. 21.6w at 24v, 20a, 230vac *) 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 w ith 100% of the nominal load for the rest of the time. fig. 9-1 efficiency vs. output current at 24v, typ. fig. 9-2 losses vs. output current at 24v, typ. efficiency 4 93 95 96 91 97% 20a 81 41 6 12 output current 18 10 6 94 92 power losses 048 16182 0 a 0 4 12 16 24w 8 12 20 1410 62 output current 10. l ifetime e xpectancy and mtbf lifetime expectancy *) 93 000h at 24v, 10a and 40c, 230vac 264 000h *) at 24v, 10a and 25c, 230vac 51 000h at 24v, 20a and 40c, 230vac 144 000h *) at 24v, 20a and 25c, 230vac mtbf **) sn 29500, iec 61709 t.b.d. at 24v, 20a and 40c, 230vac t.b.d. at 24v, 20a and 25c, 230vac mtbf **) mil hdbk 217f t.b.d. at 24v, 20a and 40c, 230vac; ground benign gb40 t.b.d. at 24v, 20a and 25c, 230vac; ground benign gb25 t.b.d. at 24v, 20a and 40c, 230vac; ground fixed gf40 t.b.d. at 24v, 20a and 25c, 230vac; ground fixed gf25 *) the lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime expectancy of the built-in electrolytic capacitors. lifetime expectancy is specified in operational hours and is calculated acc ording to the capacitors manufacturer specification. the manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h). any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices. **) mtbf stands for m ean t ime b etween f ailure, which is calculated according to statistical device failures, and indicates reliability of a device. it is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product. the mtbf figure is a statistical representation of the likelihood of a device to fail. a mtbf figure of e.g. 1 000 000h means that statistically one unit will fail ev ery 100 hours if 10 000 units ar e installed in the field. how ever, it can not be determined if the failed unit has been running for 50 000h or only for 100h. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 8/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 11. f unctional d iagram fig. 11-1 functional diagram + + - - output over- voltage protection pfc converter output voltage regulator power converter output filter temper- ature shut- down input fuse input filter input rectifier inrush current limiter v out l n dc-ok contact dc-ok led dc-ok relay 12. t erminals and w iring the terminals are ip20 finger sa fe constructed and suitable fo r field- and factory wiring. input and output dc-ok-signal type screw terminals push-in terminals solid wire max. 6mm 2 max. 1.5mm 2 stranded wire max. 4mm 2 max. 1.5mm 2 american wire gauge awg20-10 awg28-16 maximal wire diameter 2.8mm (includi ng ferrules) 1.6mm (including ferrules) wire stripping length 7mm / 0.28inch 7mm / 0.28inch screwdriver 3.5mm slotted or cross-head no 2 not required recommended tightening torque 1n m, 9lb.in not applicable instructions: a) use appropriate copper cables that are designed for minimum operating temperatures of: 75c for ambient up to 55c 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) do not use the unit without pe connection. e) unused terminal compartments should be securely tightened. f) ferrules are allowed. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 9/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 13. f ront s ide and u ser e lements fig. 13-1 front side a input terminals (screw terminals) n, l line input pe (protective earth) input b output terminals (screw terminals, two pins per pole) + positive output C ne gative (return) output c output voltage potentiometer guaranteed adjustment range: 24-28v factory set: 24.1v d dc-ok led (green) on, when the output voltage is >18v e dc-ok relay contact (push-in terminals) description see chapter 8 . jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 10/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 14. emc the power supply is suitable for app lications in industrial environment. a detailed emc report is available on request. emc immunity according generic standards: en 61000-6-1 and en 61000-6-2 electrostatic discharge en 61000-4-2 contact discharge air discharge 8kv 8kv criterion a criterion a electromagnetic rf field en 61000-4-3 80mhz-2.7ghz 10v/m criterion a fast transients (burst) en 61000-4-4 input lines output lines dc-ok signal (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 500v 1kv criterion a criterion a surge voltage on dc-ok en 61000-4-5 dc-ok signal ? pe 1kv criterion a conducted disturbance en 61000-4- 6 0.15-80mhz 10v criterion a mains voltage dips en 61000-4-11 0% of 200vac 40% of 200vac 70% of 200vac 0vac, 20ms 80vac, 200ms 140vac, 500ms criterion a criterion c criterion c voltage interruptions en 61000-4-11 0% of 200vac (=0v) 5000ms criterion c voltage sags semi f47 0706 dips on the in put voltage according to semi f47 standard 80% of 200vac (160vac) 70% of 200vac (140vac) 50% of 200vac (100vac) 1000ms 500ms 200ms criterion a criterion c criterion c 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. b: temporary voltage dips possible. no change in operation mode. c: temporary loss of function is possible. power supply may shut-down and restarts by itself. no damage or hazards for the power supply will occur. emc emission according generic standards: en 61000-6-3, en 61000-6-4 conducted emission input lines en 55011, en 55022, fcc part 15, cispr 11, cispr 22 class b fulfilled conducted emission output lines **) iec/cispr 16-1-2, iec/cispr 16-2-1 lim its for dc power port according en 61000-6-3 not fulfilled radiated emission en 55011, en 55022 class b fulfilled harmonic input current en 61000-3-2 class a fulfilled between 0a and 20a load class c fulfilled between 7a and 20a load voltage fluctuations, flicker en 61000-3-3 fulfilled *) 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. *) tested with constant current loads, non pulsing **) for information only, not mandatory for en 61000-6-3 switching frequencies the power supply has two converters with tw o different switching frequencies included. switching frequency 1 40-120khz pfc converter, input voltage and ou tput power dependent switching frequency 2 80-140khz main converter, output voltage and ou tput power dependent jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 11/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 15. e nvironment operational temperature *) -10c to +70c (14f to 158f) reduce output power according fig. 15-1 storage temperature -40c to +85c (-40f to 185f) for storage and transportation output de-rating 8w/c 55c to 70c (131f to 158f) humidity **) 5 to 95% r.h. iec 60068-2-30 vibration sinusoidal 2-17.8h z: 1.6mm; 17.8-500hz: 2g ***) 2 hours / axis ***) iec 60068-2-6 shock 30g 6ms, 20g 11ms ***) 3 bumps / direction, 18 bumps in total iec 60068-2-27 altitude 0 to 2000m (0 to 6 560ft) without any restrictions 2000 to 6000m (6 560 to 20 000ft) reduce output power or ambient temperature, see fig. 15-2 iec 62103, en 50178, overvoltage category ii altitude de-rating 30w/1000m or 5c/1000m > 2000m (6500ft), see fig. 15-2 over-voltage category iii iec 62103, en 50178, altitudes up to 2000m ii altitudes from 2000m to 6000m degree of pollution 2 iec 62103, en 50178, not conductive labs compatibility the unit does not re lease any silicone or other labs-criti cal substances and is suitable for use in paint shops. *) operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm bel ow the unit. **) do not energize while condensation is present ***) tested on a din-rail with a thickness of 1.3mm. fig. 15-1 output current vs. ambient temp. fig. 15-2 output current vs. altitude 0 -10 0 +20 +40 +70c 5a 10a 15a 20a +55 allowable output current at 24v ambient temperature allowed output current at 24v 0 0 2000 4000 6000m 4a 8a 12a 16a 20a 24a altitude a . . . t a m b < 5 5 c b . . . t a m b < 4 5 c c . . . t a m b < 3 5 c a b c jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 12/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 16. p rotection f eatures output protection electronically protected against overload , no-load and short-circuits *) output over-voltage pr otection typ. 30.5vdc max. 32.0vdc in case of an internal pow er supply defect, a redundant circuit limits the maximum output voltage. the output shuts down and automatically attempts to restart. degree of protecti on ip 20 en/iec 60529 caution: for use in a contro lled environment according to csa 22.2 no 107.1-01. over-temperature protection yes output shut-down with automatic restart input transient protection mo v (metal oxide varistor) internal input fuse included not user replaceable *) in case of a protection event, audible noise may occur. 17. s afety f eatures input / output separation selv iec/en 60950-1 pelv iec/en 60204-1, en 50178, iec 62103, iec 60364-4-41 double or reinforced insulation class of protection i pe (protect ive earth) connection required isolation resistance > 5mohm input to output, 500vdc touch current (leakage current) 0.33ma / 0.69m a 230vac, 50hz, tn-,tt-mains / it-mains 0.43ma / 0.89ma 264vac, 50hz, tn-,tt-mains / it-mains jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 13/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 18. d ielectric s trength the output voltage is floating and has no ohmic connection to the ground. type and factory tests are conducted by the manufacturer. field tests may be c onducted in the field using the appropria te 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. 18-1 dielectric strength a b c d type test 60s 2500vac 3000vac 500vac 500vac factory test 5s 2500vac 2500vac 500vac 500vac field test 5s 2000vac 2000vac 500vac 500vac cut-off current setting 10ma 10ma 10ma 1ma ad c b b *) n l input dc-ok earth, pe output - + to fulfil the pelv requirements a ccording to en60204- 1 6.4.1, we recommend that either the + pole, the C pole or any other part of the output circuit shall be conne cted to the protective 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. b*) when testing input to dc-ok ensure that the max. voltage between dc-ok and the output is not exceeded (column d). we recomm end connecting dc-ok pins and the output pins together when performing the test. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 14/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 19. a pprovals ec declaration of conformity the ce mark indicates conformance with the emc directive and the low-v oltage directive (lvd). iec 60950-1 2 nd edition, planned cb scheme, information technology equipment ul 60950-1 2 nd edition, planned 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. ul 508, planned 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 20. r o hs, reach and 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) jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 15/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 21. p hysical d imensions and w eight width 49mm 1.93 height 124mm 4.88 depth 124mm 4.88 the din-rail height must be added to the unit depth to calculate the total required installation depth. weight 620g / 1.37lb din-rail use 35mm din-rails according to en 60715 or en 50022 with a height of 7.5 or 15mm. plastic material of housing flame re tardant polycarbonate (pc) - ul94-v0 vicat softening temperature specified with 149c according to astm d1525 installation clearances see chapter 2 fig. 21-1 front view fig. 21-2 side view jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 16/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 22. a ccessory 22.1. yr40.242 r edundancy m odule the yr40.242 is the pref erred redundancy module for pic480. 241c power supplies. it is equipped with two input channels (20a each), which are individually decoupled by utilizing mosfet technology. the output current can go as high as 40a. 17/21 using mosfets instead of diodes reduces the heat generation and the voltage drop between input and output. the yr40.242 does not require an additional auxiliar y voltage. put. failure monitor 24v,20a load i i l n pe l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - yr40.242 redundancy module output input 1 input 2 + - + - + - due to the low power lo sses, the unit is very slender and only requires 36mm width on the din-rail. see chapter 23.5 for instructions how to build a redundant system. 22.2. pird20.241 r edundancy m odule the pird20.241 is a very cost effect ive diode redundancy module, which can be used to build 1+1 and n+1 redundant systems. it is equipped with two input channels, which can be connected to power supplies with up to 10a output current and one output, which can carry nominal currents up to 20a. if 20a power supplies are utilized, it is recommended to connect the power supply output to both inputs of the redundancy module. therefore, two redundancy modules are required to bui ld a 20a redundant power system. failure monitor 24v, 20a load i i l n pe pird20.241 redundancy module + - - out in 2 + + - - in 1 l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - pird20.241 redundancy module + - - out in 2 + + - - in 1 the pird20.241 is the perfect solution to use in a redundant system, if the power supply itself is equipped with a dc- ok signal. the pird20.241 does not require an additional auxiliary voltage and is self- powered even in case of a short circuit across the out see chapter 23.5 for instructions how to build a redundant system. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 23. a pplication n otes 23.1. 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. the same situation applies when sta rting 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 two examples show typical voltage dips: fig. 23-1 peak load with 2x the nominal current for 50ms, typ. fig. 23-2 peak load with 5x the nominal current for 5ms, typ. 10ms/div output voltage output current 24v 0a 40a 13.5v 1ms/div output voltage 24v 0a 100a 5.5v output current 40a peak load (resistive) for 50ms output voltage dips from 24v to 14v. 100a peak load (resistive) for 5ms output voltage dips from 24v to 4v. peak current voltage dips typ. from 24v to 13.5v at 40a for 50ms, resistive load typ. from 24v to 7.5v at 10 0a for 2ms, resistive load typ. from 24v to 5.5v at 10 0a for 5ms, resistive load 23.2. b ack - feeding l oads loads such as decelerating motors and induc tors can feed voltage back to the power supply. this feature is also called return voltage immunity or resi stance against back- e.m.f. ( e lectro m agnetic f orce). this power supply is resistant and does not show malfunctioning when a load f eeds back voltage to the power supply. it does not matter whether the power supply is on or off. the maximum allowed feed-back- voltage is 35vdc. the absorbin g energy can be calculated according to the built-in large sized output capacitor wh ich is specified in chapter 6 . jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 18/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 23.3. e xternal i nput p rotection the unit is tested and approved for bran ch circuits up to 30a (ul) and 32a (i ec). an external protection is only required if the supplying branch has an ampacity greater than this. check also local codes and local requirements. in some countries local re gulations might apply. if an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of the circuit breaker. a mi nimum value of 10a b- or 6a c-cha racteristic breaker should be used. 23.4. p arallel u se to i ncrease o utput p ower do not use the power supply in pa rallel to increase the output power. 23.5. p arallel u se for 1+1 r edundancy 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 interruption. failure monitor 24v,20a load i i l n pe l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - l n pe pic480.241c power supply 24-28v dc-ok dc- ok + + - - yr40.242 redundancy module output input 1 input 2 + - + - + - please note: this simple way to build a redundant system does not cover failures such as an internal s hort circuit in the secondary side of the power supply. in such a case, the defect unit becomes a load for the other power supplies and th e output voltage can not be maintained any more. this can only be avoided by utilizing decoupling diodes which are in cluded in the redundancy module yr40.241. recommendations for building redundant power systems: a) monitor the individual power suppl y units. therefore, use the dc-ok relay contact of the pic480.241c power supply. b) use separate input fuses for each power supply. c) use separate mains sy stems for each power supply whenever it is possible. d) it is desirable to set the output voltages of all units to the same value ( 100m v) or leave it at the factory setting. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 19/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput p r e l i m i n a r y 23.6. s eries o peration unit a ac dc unit b ac dc - + - + load + - earth (see notes) 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. earthing of the output is required when the sum of the output voltage is above 60vdc. avoid return voltage (e.g. from a decelerating motor or battery) which is applied to the output terminals. keep an installation clearance of 15mm (left / right) be tween two power supplies and avoid installing the power supplies on top of each other. pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies. 23.7. i nductive and c apacitive l oads the unit is designed to supply any kind of loads, including capacitive and inductive loads. if extreme large capacitors, such as edlcs (electric double layer capacitors or ultracaps) with a capaci tance larger than 1.5f are connected to the output, the unit might charge the capacitor in the hiccup plus mode (see chapter 6 ). 23.8. c harging of b atteries do not use the power supply to charge batteries. jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 20/21
pic480.241c piano-series 24v, 20a, s ingle p hase i nput jun. 2016 / rev. 0.2 ds-pic480.241c-en all parameters are specified at 24v, 20a, 230vac, 50hz, 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 23.9. o peration on t wo p hases 240v +10% max. fuse l2 l1 l3 l n pe power supply ac dc internal fuse 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% . 23.10. 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 type ip66 box pk 9519 100, plastic, 180x180x165mm input: 230vac load: 24v, 16a; (=80%) lo ad is placed outside the box temperature inside the box: 51.5c (in the middle of the right side of the pow er supply with a distance of 1cm) temperature outside the box: 25.5c temperature rise: 26.0k 21/21

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