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| cassette style dc-dc converters q series edition 5/5.2000 1/25 60...132 watt dc-dc converters q series input voltage ranges up to 168 v dc 1 or 2 isolated outputs 3.3...48 v dc 3 kv ac i/o electric strengh test voltage extremely high efficiency of up to 88% ? flexible output power excellent surge and transient protection safety according to iec/en 60950 and en 41003 redundant operation (n+1), current sharing extremely low inrush current, hot plug-in externally adjustable output voltage and inhibit very compact and fully functional unit (20 mm wide) telecoms compatible input voltage range of cq units according to prets 300132-2 (35...75 v dc) safety according to iec/en 60950, ul 1950, en 41003 summary these extremely compact dc-dc converters incorporate all necessary input and output filtering, signalling and pro- tection features which are required in the majority of appli- cations. the converters provide important advantages such as flexible output power through primary current limitation, extremely high efficiency, excellent reliability, very low rip- ple and rfi noise levels, full input to output isolation, negli- gible inrush current, overtemperature protection and input over-/undervoltage lock-out. the converter inputs are pro- tected against surges and transients occuring on the source lines. the outputs are continuously open- and short-circuit proof. an isolated output power good signal and leds at the front panel indicate the status of the power supply modules. test sockets at the front panel provide for a check of the main output voltage. full system flexibility and n +1 redundant operating mode are possible due to virtually unrestricted series or parallel connection capabilities of all outputs. in parallel connection of several units, automatic current sharing is provided by a single wire interconnection. as a modular power supply or as part of a distributed power supply system, the low profile design significantly reduces the necessary power supply volume without sacrificing high reliability. the fully enclosed, black coated aluminium case acts as heat sink and rfi shield. it is particularly suitable for 19" rack systems occupying 3u/4te only, but can also be chassis-mounted by means of four m3 screws. connector type according to din 41612: h15. 164 6.5" 20 0.8" 4 te 111 4.4" 3 u table of contents page summary .......................................................................... 1 type survey and key data .............................................. 2 type key and product marking ........................................ 4 functional description ...................................................... 5 electrical input data ......................................................... 6 electrical output data ...................................................... 7 auxilary functions .......................................................... 14 page electromagnetic compatibility (emc) ............................ 18 immunity to environmental conditions .......................... 20 mechanical data ............................................................ 21 safety and installation instructions ................................ 22 description of options .................................................... 25 accessories .................................................................... 25 lga
cassette style dc-dc converters q series edition 5/5.2000 2/25 type survey and key data table 1a: type survey bq, gq output 1 output 2 output power 1 input voltage range and efficiency 2 options u o nom i o u o nom i o t a = 50 c t a = 71 c u i min ... u i max h min u i min ... u i max h min [v dc] [a] [v dc] [a] p o max [w] p o nom [w] 14.4...36 v dc [%] 21.6...54 v dc [%] 3.3 0...22 - - 73 60 bq 1101-7 79 gq 1101-7 79 -9 5.1 0...20 - - 102 82 bq 1001-7r 86 gq 1001-7r 86 -9, p 12.0 3 0...10 - - 120 96 bq 2320-7r 87 gq 2320-7r 87 -9, p 15.0 3 0...8 - - 120 99 bq 2540-7r 88 gq 2540-7r 88 -9, p 24.0 3 0...5.5 - - 132 106 bq 2660-7r 88 gq 2660-7r 88 -9, p 24.0 4 0.8...5 - - 120 96 bq 2320-7r 87 gq 2320-7r 87 -9, p 30.0 4 0.6...4 - - 120 99 bq 2540-7r 88 gq 2540-7r 88 -9, p 48.0 4 0.4...2.75 - - 132 106 bq 2660-7r 88 gq 2660-7r 88 -9, p 12.0 0.8...9.2 12.0 5 0.8...9.2 120 96 bq 2320-7r 87 gq 2320-7r 87 -9, p 15.0 0.6...7.4 15.0 5 0.6...7.4 120 99 bq 2540-7r 88 gq 2540-7r 88 -9, p 24.0 0.4...5.1 24.0 5 0.4...5.1 132 106 bq 2660-7r 88 gq 2660-7r 88 -9, p table 1b: type survey cq, dq output 1 output 2 output power 1 input voltage range and efficiency 2 options u o nom i o u o nom i o t a = 50 c t a = 71 c u i min ... u i max h min u i min ... u i max 6 h min [v dc] [a] [v dc] [a] p o max [w] p o nom [w] 35...75 v dc [%] 43...108 v dc [%] 3.3 0...22 - - 73 60 cq 1101-7 79 dq 1101-7 79 -9 5.1 0...20 - - 102 82 cq 1001-7r 86 dq 1001-7r 86 -9, p 12.0 3 0...10 - - 120 96 cq 2320-7r 87 dq 2320-7r 87 -9, p 15.0 3 0...8 - - 120 99 cq 2540-7r 88 dq 2540-7r 88 -9, p 24.0 3 0...5.5 - - 132 106 cq 2660-7r 88 dq 2660-7r 88 -9, p 24.0 4 0.8...5 - - 120 96 cq 2320-7r 87 dq 2320-7r 87 -9, p 30.0 4 0.6...4 - - 120 99 cq 2540-7r 88 dq 2540-7r 88 -9, p 48.0 4 0.4...2.75 - - 132 106 cq 2660-7r 88 dq 2660-7r 88 -9, p 12.0 0.8...9.2 12.0 5 0.8...9.2 120 96 cq 2320-7r 87 dq 2320-7r 87 -9, p 15.0 0.6...7.4 15.0 5 0.6...7.4 120 99 cq 2540-7r 88 dq 2540-7r 88 -9, p 24.0 0.4...5.1 24.0 5 0.4...5.1 132 106 cq 2660-7r 88 dq 2660-7r 88 -9, p table 1c: type survey eq output 1 output 2 output power 1 input voltage range and efficiency 2 options u o nom i o u o nom i o t a = 50 c t a = 71 c u i min ... u i max 6, 7 h min [v dc] [a] [v dc] [a] p o max [w] p o nom [w] 65...150 v dc [%] 3.3 0...22 - - 73 60 eq 1101-7 79 -9 5.1 0...20 - - 102 82 eq 1001-7r 85 -9, p 12.0 3 0...10 - - 120 96 eq 2320-7r 87 -9, p 15.0 3 0...8 - - 120 99 eq 2540-7r 88 -9, p 24.0 3 0...5.5 - - 132 106 eq 2660-7r 88 -9, p 24.0 4 0.8...5 - - 120 96 eq 2320-7r 87 -9, p 30.0 4 0.6...4 - - 120 99 eq 2540-7r 88 -9, p 48.0 4 0.4...2.75 - - 132 106 eq 2660-7r 88 -9, p 12.0 0.8...9.2 12.0 5 0.8...9.2 120 96 eq 2320-7r 87 -9, p 15.0 0.6...7.4 15.0 5 0.6...7.4 120 99 eq 2540-7r 88 -9, p 24.0 0.4...5.1 24.0 5 0.4...5.1 132 106 eq 2660-7r 88 -9, p 1 the cumulated power of both outputs may not exceed the total power for the specified ambient temperature. see also: electrical out- put data: output power at reduced temperature . 2 minimum efficiency at u i nom , i o nom and t a = 25 c. 3 output 1 and 2 in parallel configuration. 4 output 1 and 2 in series configuration. 5 symmetrical configuration with second output semi-regulated ( 5% u o nom ). 6 for u i min , u i max during 100 ms refer to: input data . 7 168 v for 2 s. cassette style dc-dc converters q series edition 5/5.2000 3/25 output configuration the q unit design allows high flexibility in output configura- tion to cover almost every individual requirement, by simply wiring the outputs in parallel, series or symmetrical configu- rations as per following figures. for further information and for parallel and series operation of several modules refer to: electrical output data . load 1 vo1 C vo1 C s C vo1+ vo1+ s+ single output vi C vi+ i 28 30 32 4 6 12 14 8 10 01001 fig. 1 single output configuration fig. 4 symmetrical common ground output configuration u o + vo2+ vo1 C vo2 C s C s+ vo1+ double output vi C vi+ i load 1 load 2 u o + 0 u o C 28 30 32 4 12 14 8 6 10 01004 fig. 5 independent symmetrical output configuration load 1 load 2 vo2+ vo1 C vo2 C s C s+ vo1+ double output vi C vi+ i 28 30 32 4 12 14 8 6 10 01005 load 1 vo1 C s C s+ vo2 C vo2+ vo1+ double output vi C vi+ i 28 30 32 6 10 4 12 14 8 01003 fig. 3 series output configuration (negative sense at load only) fig. 2 parallel output configuration load 1 vo2 C vo1 C s C vo1+ vo2+ s+ double output vi C vi+ i 28 30 32 6 4 12 14 8 10 01002 cassette style dc-dc converters q series edition 5/5.2000 4/25 type key and product marking type key c q 2 5 40 -7 r p input voltage range u i : 14.4...36 v dc .............................................. b 35...75 v dc ................................................. c 43...108 v dc ............................................... d 65...150 (168/2 s) v dc ................................. e 21.6...54 v dc ............................................. g series q number of outputs: single output ................................................. 1 double output ................................................ 2 single output (long case) .............................. 6 double output (long case) ............................ 7 nominal voltage output 1 (main output) , u o1 nom : 5.1 v .............................................................. 0 3.3 v .............................................................. 1 12 v ............................................................... 3 15 v ........................................................... 4, 5 24 v ............................................................... 6 other voltages .................................... 1, 2, 7, 8 other specifications for main output ........................ 01...99 symmetrical double output units: nominal voltage output 1/output 2, u o1/2 nom 12 v/12 v (24 v series connected) .............. 20 15 v/15 v (30 v series connected) .............. 40 24 v/24 v (48 v series connected) .............. 60 other symmetrical voltages ................... 70...99 operational ambient temperature range t a : C 25 71 c ................................................... -7 C 40...71 c (option) ....................................... -9 customer specific .................................... -0...-6 output voltage control input (auxiliary function) 1 ............ r potentiometer (option) 1 ................................................... p 1 option p excludes feature r and vice versa example: cq 2540-7p: dc-dc converter, input voltage range 35...75 v, double output, each providing 15 v/ 3.3 a, equipped with potentiometer and operating ambient temperature of C 25...71 c. note: all units feature the following auxiliary functions which are not shown in the type designation: input and output filter, inhibit, sense lines, current sharing, out ok signal, led indicators and test sockets. product marking basic type designation, applicable safety approval and recognition marks, ce mark, warnings, pin allocation of input, out- put and auxiliary functions, power-one patents and company logo. identification of led's, test sockets and potentiometer. specific type designation, input voltage range, nominal output voltage and output current and degree of protection. label with batch no., serial no. and data code including production site, modification status and date of production. confir- mation of success fully passed final test. cassette style dc-dc converters q series edition 5/5.2000 5/25 functional description the units are designed as forward converters using primary and secondary control circuits in hybrid technology. the switching frequency is approximately 200 khz under nominal operating conditions. the built-in high efficient input filter together with a minimum input capacitance generate very low inrush currents with short duration. after transformer isolation and rectification, the output filter re- duces ripple and noise to a minimum without compromise to the dynamic ability. the output voltage is fed back to the secondary control circuit via the sense lines. the resultant error signal is sent to the primary control circuit via a signal transformer. double output modules have their voltage regulation of out- put 2 relying on the close magnetic coupling of the trans- former and the output inductor together with the circuits symmetry. the current limitation is located at the primary side, thus limiting the total output current in overload condi- tions. this allows flex power operation of each output for unsymmetrical loads in the range from 10...90% of the total output power. in applications with large dynamic load chan- ges it is recommended to connect such load to output 1 only. output 1 and output 2 can either be series- or parallel- connected (see: electrical output data ). p (option) 28 30 32 26 vi C i vi+ primary control circuit output control circuit output filter isolation c y c y 20 24 22 18 16 14 12 4 6 8 10 overvoltage controller out ok+ out ok C t r s C s+ vo1+ vo1+ vo1 C vo1 C input filter 03064 fig. 6 block diagram of a single output converter p (option) 28 30 32 26 vi C i vi+ output control circuit primary control circuit output filter output filter isolation c y c y 20 24 22 18 16 6 10 12 4 8 14 overvoltage controller out ok+ out ok C t r vo2+ vo2 C s+ vo1+ vo1 C s C input filter 03065 fig. 7 block diagram of a double output converter cassette style dc-dc converters q series edition 5/5.2000 6/25 electrical input data general conditions: C t a = 25 c, unless t c is specified. C sense lines connected directly at the connector, inhibit (28) connected to vi C (32). C r input not connected; with option p, u o set to u o nom at u i nom . table 2a: input data input bq gq cq 2 characteristics conditions min typ max min typ max min typ max unit u i operating input voltage i o = 0... i o max 14.4 36 22 54 35 75 v dc u i nom nominal input voltage t c min ... t c max 24 36 48 u i abs input voltage limits without damage 0 50 0 63 0 100 i i typical input current 1 u i nom , i o nom 4.5 3.0 2.2 a p i 0 no-load input power u i min u i max 2.5 3.0 2.5 w i o = 0 p i inh idle input power unit inhibited 1.0 1.5 1.5 i inr p peak inrush current 2 u i nom , i o nom 55 40 35 a t inr r rise time 50 40 35 s t inr h trailing edge half-life 130 110 80 table 2b: input data input dq eq characteristics conditions min typ max min typ max unit u i operating input voltage i o = 0... i o max 43 108 65 150 v dc for 2 s t c min ... t c max n.a. 65 168 for 100 ms 36 115 55 176 u i nom nominal input voltage 72 110 u i abs input voltage limits without damage 0 125 0 200 i i typical input current 1 u i nom , i o nom 1.5 1.0 a p i 0 no-load input power u i min u i max 5.5 4.0 w i o = 0 p i inh idle input power unit inhibited 3.5 3.5 i inr p peak inrush current 2 u i nom , i o nom 20 45 a t inr r rise time 50 15 s t inr h trailing edge half-life 90 25 1 typical input current depends on individual module 2 according to prets 300132-2 input fuse a fuse mounted inside the converter protects the module in case of failure against severe defects. the fuse can not be made externally accessible. reverse polarity at the input will cause the fuse to blow. table 3: fuse specification module fuse type fuse rating bq fast-blow littelfuse 275 2 7 a, 125 v gq fast-blow littelfuse 275 2 7 a, 125 v cq fast-blow littelfuse 275 10 a, 125 v dq fast-blow littelfuse 275 7 a, 125 v eq very fast-blow littelfuse 263 5 a, 250 v input transient protection a metal oxide vdr (voltage dependent resistor) together with the input fuse and a symmetrical input filter form an ef- fective protection against high input transient voltages which typically occur in most installations, but especially in battery driven mobile applications. nominal battery voltages in use are: 24, 36, 48, 60, 72, 96 and 110 v. in most cases each nominal value is specified in a tolerance of C 30%...+25%, with short excursions to 40% or even more. in certain applications, surges according to ria 12 are specified in addition to those defined in iec 60571-1 or en 50155. the power supply must not switch off during these surges and since their energy can practically not be ab- sorbed an extremely wide input range is required. the q series input range has been designed and tested to meet most of these requirements. see also: emc (surge b) . cassette style dc-dc converters q series edition 5/5.2000 7/25 input under-/overvoltage lock-out if the input voltage remains below approx. 0.9 u i min or ex- ceeds approx. 1.1 u i max , an internally generated inhibit sig- nal disables the output(s). when checking this function the absolute maximum input voltage rating u i abs should be considered! inrush current limitation the inherent inrush current value is lower than specified in the prets 300132-2 (ver. 3.1) standard. the units operate with relatively small input capacitance resulting in low in- rush current of short duration. as a direct consequence in a power-bus system the units can be hot plugged-in or dis- connected causing negligible disturbance at the input side. electrical output data general conditions: C t a = 25 c, unless t c is specified. C sense lines connected directly at the connector, inhibit (28) connected to vi C (32). C r input not connected; with option p, u o set to u o nom at u i nom . table 4a: output data for single output modules and modules with output 1 and output 2 in parallel configuration output bq...gq 1101 bq...gq 1001 bq...gq 2320 3.3 v 5.1 v 12.0 v characteristics conditions min typ max min typ max min typ max unit u o output voltage 1 u i nom , i o nom 3.28 3.32 5.07 5.13 11.94 12.06 v u ow worstcase output u i min ... u i max 5.02 5.18 11.82 12.18 voltage t c min ... t c max 3.24 3.35 u o p overvoltage limitation i o = 0... i o max 4.5 4.9 5.9 6.4 13.5 15.0 of second control loop i o output current 2 u i min ... u i max 0 22.0 0 20.0 0 10.0 a i o nom nominal output current 3 t c min ... t c max 18.0 16.0 8.0 i ol output current limit 2 23.0 24.0 29.0 21.0 22.0 26.0 10.5 11.0 13.0 u o output switch. frequ. u i nom , i o nom 15 25 10 15 10 20 mv pp voltage total iec/en 61204 25 40 15 25 20 40 noise 4 bw = 20 mhz p o output power 1 u i min ... u i max 75 110 130 w t c min ... t c max u o d 5 dynamic voltage u i nom 300 250 350 mv load deviation i o nom ? 1 / 2 i o nom t d regulation recovery iec/en 61204 4 800 700 150 s time u o tr output voltage trimming u i min ... u i max n.a. n.a. 4.0 5.6 5.5 13.2 v range 6 (0.08...1) i o max n.a. n.a. 4.6 5.6 10.8 13.2 t c min ... t c max 1 if the output voltages are increased above u o nom through r-input control, option p setting or remote sensing, the output power should be reduced accordingly so that p o max and t c max are not exceeded. 2 see: output current limitation and output power at reduced temperature. 3 in parallel and symmetrical configuration, i o nom = i o1 nom + i o2 nom . 4 see: technical information : measuring and testing . 5 recovery time until u o remains within 1% of u o , see: dynamic load regulation . 6 upper row represents setting via r-input, lower row option p range. cassette style dc-dc converters q series edition 5/5.2000 8/25 table 4b: output data for single output modules and modules with output 1 and output 2 in parallel configuration output bq...gq 2540 bq...gq 2660 15.0 v 24.0 v characteristics conditions min typ max min typ max unit u o output voltage 1 u i nom , i o nom 14.93 15.08 23.88 24.12 v u ow worstcase output u i min ... u i max 14.78 15.23 23.64 24.36 voltage t c min ... t c max u o p overvoltage limitation i o = 0... i o max 17.0 19.0 27.5 30.0 of second control loop i o output current 2 u i min ... u i max 0 8.0 0 5.5 a i o nom nominal output current 3 t c min ... t c max 6.6 4.4 i ol output current limit 2 8.4 8.8 10.4 5.8 6.1 7.7 u o output switch. frequ. u i nom , i o nom 10 25 60 90 mv pp voltage total iec/en 61204 15 40 70 100 noise 4 bw = 20 mhz p o output power 1 u i min ... u i max 130 140 w t c min ... t c max u o d 5 dynamic voltage u i nom 350 550 mv load deviation i o nom ? 1 / 2 i o nom t d regulation recovery iec/en 61204 4 100 100 s time u o tr output voltage trimming u i min ... u i max 8.0 16.5 14.0 7 26.4 v range 6 (0.08...1) i o max 13.5 16.5 21.6 26.4 t c min ... t c max 1 if the output voltages are increased above u o nom through r-input control, option p setting or remote sensing, the output power should be reduced accordingly so that p o max and t c max are not exceeded. 2 see: output current limitation and output power at reduced temperature. 3 in parallel and symmetrical configuration, i o nom = i o1 nom + i o2 nom . 4 see: technical information : measuring and testing . 5 recovery time until u o remains within 1% of u o , see: dynamic load regulation . 6 upper row represents setting via r-input, lower row option p range. 7 for dq 2660 and eq 2660: u o tr min = 19 v. cassette style dc-dc converters q series edition 5/5.2000 9/25 table 4b: output data for double output modules with output 1 and output 2 in series configuration output bq...gq 2320 bq...gq 2540 bq...gq 2660 24 v (2 12 v) 30 v (2 15 v) 48 v (2 24 v) characteristics conditions min typ max min typ max min typ max unit u o output voltage 1 u i nom , i o nom 23.76 24.24 29.70 30.30 47.52 48.48 v u ow worstcase output u i min ... u i max 23.52 24.48 29.40 30.60 47.04 48.96 voltage t c min ... t c max u o p overvoltage limitation i o min ... i o max 5 27.0 30.0 34.0 38.0 55.0 60.0 of second control loop i o output current 2 u i min ... u i max 0.8 5.0 0.6 4.0 0.4 2.75 a i o nom nominal output current t c min ... t c max 4.0 3.3 2.2 i ol output current limit 2 5.25 5.50 6.50 4.20 4.40 5.20 2.9 3.1 3.9 u o output switch. frequ. u i nom , i o nom 20 40 20 50 120 180 mv pp voltage total iec/en 61204 40 80 30 80 140 200 noise 5 bw = 20 mhz p o output power 1 u i min ... u i max 130 130 140 w t c min ... t c max u o d 3 dynamic voltage u i nom 650 650 950 mv load deviation i o nom ? 1 / 2 i o nom t d regulation recovery iec/en 61204 5 150 100 100 s time u o tr output voltage trimming u i min ... u i max 11.0 26.4 16.0 33.0 28.0 6 52.8 v of output voltage 4 i o min ... i o max 21.6 26.4 27.0 33.0 43.2 52.8 t c min ... t c max 1 if the output voltages are increased above u o nom through r-input control, option p setting or remote sensing, the output power should be reduced accordingly so that p o max and t c max are not exceeded. 2 see: output current limitation and output power at reduced temperature. 3 recovery time until u o remains within 1% of u o , see: dynamic load regulation . 4 upper row represents setting via r-input, lower row option p range. 5 see: technical information : measuring and testing . 6 for dq 2660: u o tr min = 38 v. cassette style dc-dc converters q series edition 5/5.2000 10/25 parallel or series connection of outputs and/or units single or double output units with equal nominal output volt- age can be connected in parallel without any precaution by interconnecting the t-pins for approximate equal current sharing. (see: auxiliary functions .) any double output unit with its outputs in parallel behaves like a single output unit, i.e. is fully regulated. there is no inconvenience or restriction using the r-input and the sense lines . single output units and/or main and second outputs of dou- ble output units can be connected in series with any other (similar) output. for double output modules consider, that the effect via sense lines, r-input or option p is doubled. load vo1+ (vo2+) vo1 C vo1 C (vo2 C ) s C s+ vo1+ single (double) output t vi C vi+ i out ok C out ok+ vo1+ (vo2+) vo1 C vo1 C (vo2 C ) s C s+ vo1+ single (double) output t vi C vi+ i out ok C out ok+ + i + C r p 05091 load vo1+ vo2 C vo1 C s C s+ vo2+ double output vi C vi+ i out ok C out ok+ vi C vi+ i out ok C out ok+ + i + C vo1+ vo2 C vo1 C s C s+ vo2+ double output r p 05092 fig. 8 parallel connection of outputs and/or several modules, sense lines connected at connector side fig. 9 series connection of outputs and/or several modules, sense lines connected at connector side only note: C parallel connection of several double output units should always include both, main and second output to maintain good regulation of all outputs. C series connection of second outputs without involving their main outputs should be avoided as regulation may be poor. C the maximum output current is limited by the output with the lowest current limitation if several outputs are con- nected in series. C rated output voltages above 48 v (selv = safety extra low voltage) need additional measures in order to com- ply with international safety requirements. u od u od t d t d u o 1% u o 1% t t 10 s 10 s u o 0 0.5 1 i o / i o nom 05102 dynamic load regulation fig. 10 control deviation of u o versus dynamic load change hold up time the modules provide virtually no hold up time. if hold up time is required, use external output capacitors or decou- pling diodes and input capacitors of adequate size. formula for additional external input capacitor 2 ? p o ? t h ? 100 c i ext = CCCCCCCCCCCCCCC h ? ( u ti 2 C u i min 2 ) where as: c i ext = external input capacitance [mf] p o = output power [w] h = efficiency [%] t h = hold-up time [ms] u i min = minimum input voltage [v] u ti = threshold level [v] cassette style dc-dc converters q series edition 5/5.2000 11/25 table 5a: output data for double output modules with output 1 and output 2 in symmetrical configuration output bq...gq 2320 bq...gq 2540 12 v/12 v 15 v/15 v characteristics conditions output 1 output 2 output 1 output 2 min typ max min typ max min typ max min typ max unit u o output voltage 1 u i nom , i o nom 11.94 12.06 11.82 12.18 14.93 15.08 14.78 15.23 v u ow worstcase output u i min ... u i max 11.82 12.18 see output 14.78 15.23 see output voltage t c min ... t c max voltage regulation voltage regulation u o p overvoltage limitation i o = 0... i o max 13.5 15.0 17.0 19.0 of second control loop i o output current 2 u i min ... u i max 0.8 9.2 0.8 9.2 0.6 7.4 0.6 7.4 a i o nom nominal output current 3 t c min ... t c max 8.0 6.6 i o l output current limit 2 10.5 11.0 13.0 10.5 11.0 13.0 8.4 8.8 10.4 8.4 8.8 10.4 u o output switch. frequ. u i nom , i o nom 10 20 10 20 10 25 10 25 mv pp voltage total iec/en 61204 20 40 20 40 15 40 15 40 noise 4 bw = 20 mhz p o output power 1 u i min ... u i max 130 130 w t c min ... t c max u o d 5 dynamic voltage u i nom , d i o1 = 300 350 300 350 mv load deviation 1 / 2 ? 1 / 4 i o nom t d regulation recovery i o2 = 1 / 2 i o nom 120 100 s time iec/en 61204 4 u o tr output voltage trimming u i min ... u i max 5.5 13.2 8.0 16.5 v range 6 i o min ... i o max 10.8 13.2 13.5 16.5 t c min ... t c max table 5b: output data for double output modules with output 1 and output 2 in symmetrical configuration output bq...gq 2660 24 v/24 v characteristics conditions output 1 output 2 min typ max min typ max unit u o output voltage 1 u i nom , i o nom 23.88 24.12 23.64 24.36 v u ow worstcase output u i min ... u i max 23.64 24.36 see output voltage t c min ... t c max voltage regulation u o p overvoltage limitation i o = 0... i o max 27.5 30.0 of second control loop i o output current 2 u i min ... u i max 0.4 5.1 0.4 5.1 a i o nom nominal output current 3 t c min ... t c max 4.4 i o l output current limit 2 5.8 6.1 7.7 5.8 6.1 7.7 u o output switch. frequ. u i nom , i o nom 60 90 60 90 mv pp voltage total iec/en 61204 70 100 70 100 noise 4 bw = 20 mhz p o output power 1 u i min ... u i max 140 w t c min ... t c max u o d 5 dynamic voltage u i nom , d i o1 = 550 400 mv load deviation 1 / 2 ? 1 / 4 i o nom t d regulation recovery i o2 = 1 / 2 i o nom 100 s time iec/en 61204 4 u o tr output voltage trimming u i min ... u i max 14.0 7 26.4 v range 6 i o min ... i o max 21.6 26.4 t c min ... t c max 1 if the output voltages are increased above u o nom through r- input control, option p setting or remote sensing, the output power should be reduced accordingly so that p o max and t c max are not exceeded. 2 see: output current limitation and output power at reduced temperature. 3 in parallel and symmetrical configuration, i o nom = i o1 nom + i o2 nom . 4 see: technical information : measuring and testing . 5 recovery time until u o remains within 1% of u o , see: dynamic load regulation . 6 upper row represents setting via r-input, lower row option p range. 7 for dq 2660: u o tr min =19 v. cassette style dc-dc converters q series edition 5/5.2000 12/25 output voltage regulation of double output modules in symmetrical configuration the main output 1 is under nor- mal conditions regulated to u o nom , independent of the out- put currents. note that if the load on output 2 is too small ( < 0.1 ? i o nom ), its voltage will rise, possibly activating the overvoltage protection, which will then reduce the voltage on both outputs. u o2 is dependent upon the load distribution: if each output is loaded with at least 10% of i o nom , the deviation of u o2 re- mains within 5% of the value of u o nom . the following fig- ures explain the regulation with varying load distributions up to the current limit. if i o1 = i o2 or the two outputs are in series-connection, the deviation of u o2 remains within 1% of the value of u o nom provided that the load is at least i omin . u o1 + 1.0 v u o1 u o1 1.0 v i o2 [a] 2 34 5 u o2 max = 28 v 0 6 u o2 [v] i o1 = 4.0 a i o1 = 3.1 a i o1 = 2.2 a i o1 = 1.3 a i o1 = 0.44 a 1 05113 fig. 13 bq...gq 2660 output 2 voltage deviation vs. output 2 cur- rent with different currents on output 1 u o1 + 0.5 v u o1 u o1 C 0.5 v 2 468 u o2 max = 14.2 v 0 i o2 [a] u o2 [v] i o1 = 7.2 a i o1 = 5.6 a i o1 = 4.0 a i o1 = 2.4 a i o1 = 0.8 a 10 05111 fig. 11 bq...gq 2320 output 2 voltage deviation vs. output 2 cur- rent with different currents on output 1 u o1 + 0.5 v u o1 u o1 C 0.5 v 2 46 8 u o2 max = 18 v 0 i o2 [a] u o2 [v] i o1 = 6.0 a i o1 = 4.6 a i o1 = 3.3 a i o1 = 2.0 a i o1 = 0.66 a 05112 fig. 12 bq...gq 2540 output 2 voltage deviation vs. output 2 cur- rent with different currents on output 1 output voltage overshoot protection negligible output voltage overshoot may occur if the mod- ule is either hot plugged-in or disconnected, the input volt- age is switched on or off, the module is switched with an in- hibit signal, or after a reset of a short circuit and power fail- ure. second control loop a fully independent second control loop limits the output voltage to approximately 1.25 ? u o nom (e.g. sense lines wi- red incorrectly). it further protects the load in the unlikely event of a malfunction of the main control circuit. in double output modules output 1 is fully regulated with overvoltage protection on output 2, through this second control loop. there is no specific built-in protection against externally applied overvoltages. continuous open-circuit and short-circuit proof all outputs are fully protected against continuous open cir- cuit, e.g. against no load condition (for the bq...gq 2000 characteristics refer to: output voltage regulation of dou- ble output modules ) and all outputs are fully protected against continuous short circuit condition by means of the electronic current limitation on the primary side (see: out- put current limitation ). output current limitation single output units and series- or parallel-connected dou- ble output units have a quasi rectangular constant current limitation characteristic. in double output units, the total current is limited, allowing free choice of load distribution between the two outputs, up to a total i o1 + i o2 i o max (see: output voltage regulation of double output modules ). in overload (i o1 + i o2 > i o max ) both output voltages are reduced simultaneously. independent outputs with symmetrical current loads both have a rectangular current limitation characteristic. current distribution in overload is dependent upon the type of overload. a short-circuit in one output will cause the full current flow into that output whereas a resistive overload results in more even distribution and in a reduced output voltage. 1.0 0.95 0.5 0 u o / u o nom i o i o nom i o max operation at reduced temperature only i o l 05114 fig. 14 current limitation behaviour of a single or a double output unit with series- or parallel-connected outputs cassette style dc-dc converters q series edition 5/5.2000 13/25 thermal considerations if a converter is located upright in free flowing, quasi-sta- tionary air (convection cooling) at the indicated maximum ambient temperature t a max (see table: temperature specifi- cations) and is operated at its nominal input voltage and output power, the temperature measured at the measuring point of case temperature t c (see: mechanical data ) will approach the indicated value t c max after the warm-up phase. however, the relationship between t a and t c de- pends heavily on the conditions of operation and integra- tion into a system. the thermal conditions are influenced by input voltage, output current, airflow and temperature of surrounding components and surfaces. t a max is therefore, contrary to t c max , an indicative value only. caution: the installer must ensure that under all operat- ing conditions t c remains within the limits stated in the table: temperature specifications. notes: sufficient forced cooling or an additional heat sink improves the reliability or allows t a to be higher than t a max (e.g. 85 c) as long as t c max is not exceeded. in rack sys- tems without proper thermal management, the modules must not be packed too densely! in such cases the use of a 5 or 6te front panel is recommended. t a min 50 60 70 80 90 100 p o t a [ ? c] forced cooling convection cooling t c max 05116 p o max p o nom 0.45 p o nom fig. 16 output current derating versus t a . 12 3 4 5 90 h [%] i o [a] u i max u i nom u i min 05115 85 80 75 fig. 15 efficiency versus input voltage and output current (per output). typical values of eq 2320 at u o nom . typical efficiency thermal protection a temperature sensor generates an internal inhibit signal which disables the outputs if the case temperature ex- ceeds t c max . the outputs are automatically re-enabled if the temperature drops below this limit. output power at reduced temperature operating the units with output current from i o nom ... i o max requires a reduction of ambient temperature to t a max = 50 c or forced cooling in order to keep t c below 85 c. if t c max is exceeded, the unit runs into its thermal protection and switches off (e.g. t a > 50 c and p o > p o nom ). important: short-term operation within the shaded area (e.g. start-up current, peak current) is possible without additional measures, provided the case temperature re- mains below t c max . fig. 17 output current versus ambient temperature 0 t a [ c] i o i o nom 71 50 i o max forced cooling convection cooling 05117 cassette style dc-dc converters q series edition 5/5.2000 14/25 auxilary functions i inhibit for remote on and off note: if this function is not actively used, the inhibit pin 28 must be interconnected with the negative input pin 32 to en- able the output(s). a non-connected pin 28 will be inter- preted by the internal logic as an active inhibit signal and therefore output(s) will remain disabled: fail safe function. an inhibit input enables (logic low, pull down) or disables (logic high, pull up) the output if a logic signal e.g. ttl, cmos is applied. in systems consisting of several units, this feature may be used, for example, to control the activa- tion sequence of the converters by means of logic signals, or to allow the unit's source for a proper start up before full load is applied (e.g. in combination with lt units). table 6: inhibit characteristics characteristics conditions min typ max unit u inh inhibit u o = on u i min ... u i max C 100 0.8 v dc voltage u o = off t c min ... t c max 2.4 100 i inh inhibit current u inh = C 50 v C 500 a u inh =0 v C 40 u inh = 50 v +500 u inh = 100 v +1000 i vi C vi+ vo C s C u i i o u o r l i i i inh u inh vo C vo+ vo+ s+ 28 30 32 26 14 10 8 6 4 12 06091 fig. 18 definition of input and output parameters 0 t r u i t t t 0.8 on off u inh [v] 2.4 0.1 u o / u o normal t f t d on 0.99 1.01 06092 fig. 19 output response as a function of input voltage (on/off switching) or inhibit control output response the output response when enabling and disabling the out- put by the inhibit input is shown in the following figure. table 7: output response time with outputs resistively loaded and r-input and p option not used bq, cq, gq dq, eq characteristics conditions min typ max min typ max unit t d on turn-on delay time u i = 0 u i min , r l = u o nom /0.5 i o nom 5 850 ms u i = 0 u i nom , r l = u o nom / i o nom 3.5 250 t r output voltage rise time u i = 0 u i nom , r l = u o nom / i o nom 2.5 2.5 u i inh = 2.4 0.8 v , r l = u o nom / i o nom t f output voltage fall time u i = u i nom 0, r l = u o nom / i o nom 33 u i inh = 0.8 2.4 v , r l = u o nom / i o nom current sharing (t function) the current sharing facility should be used where several units are to be operated in parallel for high reliability n+1 redundant systems or in order to provide higher output powers. using this feature reduces the stress on the units and further improves the reliability of the system. interconnection of the current sharing terminals t causes the units to share the output current to the average of all units. the current tolerance of each unit is approx. 20% of the sum of its nominal output currents i o1 nom + i o2 nom . in n+1 redundant systems, a failure of a single unit will not lead to a system failure if the outputs are decoupled by di- odes. see also sense lines . since the voltage on the t pin is referenced to the sense pin s C , the installer must ensure that the s C pins of all units are at the same electrical potential, i.e. voltage drops > 50 mv across the connection lines between these pins shall be avoided. bq...gq 2000 dc-dc converters with outputs connected in series can also be paralleled with current sharing, if pins vo1 C of all units are connected together. see sense lines . if the output voltages are programmed to a voltage other than u o nom by means of the r pin or option p, the outputs should be adjusted individually within a tolerance of 1%. the current sharing will be less accurate when operating with dynamic loads. important: for applications using the hot plug-in capa- bilities, dynamic output voltage changes during the plug- in/plug-out cycles must be considered. cassette style dc-dc converters q series edition 5/5.2000 15/25 r-control for output voltage adjustment note: with open r input, u o u o nom . r excludes option p. all modules offer a programmable output voltage feature. the programming is performed either by an external control voltage u ext or an external resistor r 1 or r 2 , connected to the r-input. trimming is limited to the values given in the table below (see also: electrical output data ). with a dis- connected r-input, the output voltage is set to u o nom . simultaneous use of the r-input function and option p is not possible. if option p is built-in, the r-input will remain active but its function must not be used; do not connect pin r at all! with double output modules, both outputs are affected by the r-input settings. if output voltages are set higher than u o nom , the output cur- rents should be reduced accordingly, so that the maximum specified output power is not exceeded. caution: to prevent damage, u ext should not exceed 20 v, nor be negative. a) adjustment by means of an external control voltage u ext between r (16) and s C (14). u o is dependent upon u ext : u o u ext u ext 2.5 v ? CCCCCCC u o u o nom ? CCCCC u o nom 2.5 v b) adjustment by means of an external resistor: the resistor can either be connected between the pins r (16) and s C (14) to set u o < u onom , or between the pins r (16) and s+ (12) to set u o > u o nom . note: r inputs of n units with paralleled outputs may be paralleled, too, but if only one external resistor is to be used, its value should be r 1 /n, or r 2 /n respectively. fig. 20 output voltage programming using a control voltage u ext load 1 load 2 vo2+ vo1 C vo2 C s C s+ vo1+ double output r vi C vi+ i + u ext C 06093 fig. 21 output voltage programming using r 1 or r 2 load 1 r 1 r 2 vo1 C vo1 C s C vo1+ vo1+ s+ single output r vi C vi+ i 06094 table 8a: r 1 for u o < u o nom ; approximate values (u i nom , i o nom , series e 96 resistors); r 2 = u o nom = 5.1 v u o nom = 12 v u o nom = 15 v u o nom = 24 v u o (v) r 1 [k ? ] u o [v] 1 r 1 [k ? ] u o [v] 1 r 1 [k ? ] u o [v] 1 r 1 [k ? ] 4.0 14.7 5.5 11.0 3.40 8.0 16.0 4.53 14.0 2 28.0 2 5.62 4.1 16.5 6.0 12.0 4.02 8.5 17.0 5.23 15.0 2 30.0 2 6.65 4.2 18.2 6.5 13.0 4.75 9.0 18.0 6.04 16.0 2 32.0 2 8.06 4.3 21.5 7.0 14.0 5.62 9.5 19.0 6.98 17.0 2 34.0 2 9.76 4.4 25.5 7.5 15.0 6.65 10.0 20.0 8.06 18.0 2 36.0 2 12.1 4.5 30.1 8.0 16.0 8.06 10.5 21.0 9.31 19.0 38.0 15.4 4.6 37.4 8.5 17.0 9.76 11.0 22.0 11.0 20.0 40.0 20.0 4.7 47.5 9.0 18.0 12.1 11.5 23.0 13.3 20.5 41.0 23.7 4.8 64.9 9.5 19.0 15.4 12.0 24.0 16.2 21.0 42.0 28.0 4.9 97.6 10.0 20.0 20.0 12.5 25.0 20.0 21.5 43.0 34.8 5.0 200.0 10.5 11.0 28.0 13.0 26.0 26.1 22.0 44.0 44.2 11.0 22.0 44.2 13.5 27.0 36.5 22.5 45.0 60.4 11.5 23.0 93.1 14.0 28.0 56.2 23.0 46.0 90.9 14.5 29.0 115.0 23.5 47.0 190.0 table 8b: r 2 for u o > u o nom ; approximate values (u i nom , i o nom , series e 96 resistors); r 1 = u o nom = 5.1 v u o nom = 12 v u o nom = 15 v u o nom = 24 v u o [v] r 2 [k ? ] u o [v] 1 r 2 [k ? ] u o [v] 1 r 2 [k ? ] u o [v] 1 r 2 [k ? ] 5.2 215.0 12.2 24.4 931 15.3 30.6 1020 24.5 49.0 1690 5.3 110.0 12.4 24.8 475 15.5 31.0 619 25.0 50.0 866 5.4 75.0 12.6 25.2 316 15.7 31.4 453 25.5 51.0 590 5.5 57.6 12.8 25.6 243 16.0 32.0 316 26.0 52.0 442 5.6 46.4 13.0 26.0 196 16.2 32.4 267 26.4 52.8 374 13.2 26.4 169 16.5 33.0 221 1 first column: single output units or double output units with separated/paralleled outputs, second column: outputs in series co nnection. 2 for dq 2660: u o tr min = 19/38 v. cassette style dc-dc converters q series edition 5/5.2000 16/25 output control circuit 22 20 out ok+ out ok + r p u ok i ok 1 k 51 v u p 06096 caution: the out ok is protected by an internal series resistor and a zener diode. to prevent damage, the ap- plied current i ok should be limited to 10 ma maximum. out ok r p load 1 load 2 vo2+ vo1 C vo2 C s C s+ vo1+ double output vi C vi+ i out ok C out ok+ vo1 C vo1 C s C vo1+ vo1+ s+ single output vi C vi+ i out ok C out ok+ 06095 table 9: output ok data characteristics conditions min typ max unit u ok out ok voltage good: u t1 low < u o1 < u t1 high , i ok < 0.5 ma 1 0.8 1.5 v i ok out ok current error: u o1 < u t1 low , u ok 15 v 25 a error: u o1 > u t1 high , u ok 15 v 1 higher current capability is available on request. output good signal (out ok) the isolated out ok output gives a status indication of the module and the output voltage. it can be used for control functions such as data protection, central system monitor- ing or as a part of a self-testing system. it can be connected to get a centralized fault detection or may be used for other system specific applications at the primary or the second- ary side of the converter. connecting the out ok as per figure below, u ok < 1.5 v indicates that the output voltage u o1 of the converter is within the range u t1 low ... u t1 high . u t1 low corresponds with 0.95...0.98 u o1 normal , u t1 high with 1.02...1.05 u o1 normal , where u o1 normal is the effective output voltage appearing in normal condition. (using the r-input or the option p, the monitor level is tracking the programmed output voltage.) in case of an error condition, i.e. the output voltage u o1 is out of the range u t1 low ... u t1 high due to an overload condition or to an external overvoltage, u ok will be almost as high as the voltage u p. the output is formed by a npn transistor. the emitter (out ok C ) can be connected to primary vi C or secondary vo1 C to get an open collector output. with several independent units the out ok pins can be series-connected in order to get a system level signal. if one of the units fails the series- connected outputs rise to a high impedance. this series- connection can be completed by other transistors providing extended user specific error information. fig. 22 series connection of the output good signal at the primary side of the converters for system supervision fig. 23 output ok function u p dimensioning of resistor value r p CCCCCC 0.5 ma test sockets test sockets (for pin diameter 2 mm) are located at the front of the module monitoring the main output voltage at the sense line terminals. the test sockets are short circuit pro- tected by internal series resistors. test sockets for monitor- ing the symmetrical output 2 are not available. double out- put modules always show the sense line voltage of output 1 at the test sockets only. display status of led's table 10: display status of led's led in ok led out ok operating condition green green normal operation green x incorrect sense line connection green off overtemperature overload output overvoltage output undervoltage off green not possible off off no input voltage input voltage too low inhibit open/high input voltage too high x = dependent on actual operating condition cassette style dc-dc converters q series edition 5/5.2000 17/25 sense lines important: sense lines must always be connected! incorrectly connected sense lines may activate the over- voltage limitation, i.e. shutting down the output. this feature enables compensation of voltage drop at out- put 1 across the connector contacts and the load lines in- cluding the diode in true redundant wired-or system configurations. in case the sense lines are connected at the load rather than directly at the connector, the user must ensure that u o p min (between vo1+ and vo1 C ) is not exceeded. for output voltages u o > u o tr max , the minimum input voltage according to: electrical input data increases proportionally to u o / u o tr max . applying generously dimensioned cross-section load leads avoids troublesome voltage drop. to minimize noise pick- up, wire sense lines parallel or twisted. for unsymmetrical loads it is recommended to connect the sense lines directly at the female connector. fig. 24 sense lines connection for redundant (n + 1) or parallel operation using wired-or diodes load vo2+ vo1 C vo2 C s C s+ vo1+ t vi C vi+ i vo2+ vo1 C vo2 C s C s+ vo1+ t vi C vi+ i double output double output 06097 load vo1+ vo2 C vo1 C s C s+ vo2+ double output vi C vi+ i out ok C out ok+ vi C vi+ i out ok C out ok+ + i + C vo1+ vo2 C vo1 C s C s+ vo2+ double output r p 06114 t t fig. 25 parallel connection of several modules with series con- nection of outputs to ensure correct operation, both sense lines must be con- nected to their respective power output potential. with dou- ble output units the sense lines must be connected to out- put 1 only. caution should be exercised when outputs are series-connected as the compensated voltage is effectively doubled (refer to: electrical output data ). the voltage dif- ference between any sense line and its respective power output pin (as measured on the connector) should not ex- ceed the following values at nominal output voltage. table 11: voltage compensation allowed using sense lines output total voltage difference between sense voltage lines and their respective outputs 5.1 v < 0.5 v 12, 15, 24 v < 1.0 v cassette style dc-dc converters q series edition 5/5.2000 18/25 lations, but especially in battery driven mobile applications. the q series has been successfully tested to the following specifications: electromagnetic compatibility (emc) a metal oxide vdr together with an input fuse and a sym- metrical input filter form an effective protection against high input transient voltages which typically occur in most instal- electromagnetic immunity table 12: immunity type tests phenomenon standard 1 level coupling value waveform source test in per- mode 2 applied imped. procedure oper. form. 3 supply related ria 12 b +i/ C i 1.5 ? u batt 0.1/1/0.1 s 0.2 ? 1 positive yes a surge en 50155 1.4 ? u batt 1 ? surge direct transient ria 12 d C i/c, +i/ C i 1800 v p 5/50 s5 ? 5 pos. and 5 neg. yes b en 50155 g 8400 v p 0.05/0.1 s 100 ? impulses indirect coupled h C o/c, +o/ C o, C o/ C i 1800 v p 5/50 s transient l 8400 v p 0.05/0.1 s electrostatic iec/en 4 contact discharge 8000 v p 1/50 ns 330 ? 10 positive and yes b discharge 61000-4-2 air discharge 15000 v p 10 negative (to case) discharges electromagnetic iec/en x antenna 20 v/m am 80% n.a. 26 1000 mhz yes a field 61000-4-3 1 khz electromagnetic env 50204 4 30 v/m 50% duty cycle, 900 5 mhz field, 200 hz repetition pulse modulated frequency electrical fast iec/en 4 capacitive, o/ 2000 v p bursts of 5/50 ns 50 ? 1 min positive yes b transient/burst 61000-4-4 direct, i/c, +i/ C i 4000 v p 5 khz over 1 min negative 15 ms; burst transients per period: 300 ms coupling mode surge iec/en 3 i/c 2000 v p 1.2/50 s 12 ? 5 pos. and 5 neg. yes b 61000-4-5 2 +i/ C i 1000 v p 2 ? surges per coupling mode 19 pfl 1 150 v p 0.1/0.3 ms < 100 a 3 pos. 5 repetitions yes a 4 conducted iec/en 3 i, o, signal wires 10 v rms am 80% 150 ? 0.15...80 mhz yes a disturbances 61000-4-6 (140 db v) 1 khz 1 related and previous standards are referenced in: technical information: standards . 2 i = input, o = output, c = case, = protective earth. 3 a = normal operation, no deviation from specifications, b = temporary deviation from specs possible. 4 valid for cq only. cassette style dc-dc converters q series edition 5/5.2000 19/25 electromagnetic emissions table 13: emissions at u i nom and i o nom types level cispr 11/en 55011 cispr 14/ cispr 22/en 55022 en 55014 30 mhz 30 mhz 30 mhz bq 1000 b - - cassette style dc-dc converters q series edition 5/5.2000 21/25 mechanical data dimensions in mm. tolerances 0.3 mm unless otherwise indicated. european projection note: long cases, elongated by 60 mm for 220 mm rack depth is available on request. see also: type key . 104 0.15 60 111 20 105 127 0.15 164 0.5 8 0.5 19.8 m3; 4 deep measuring point of case temperature t c 20.32 (4 te) 13.43 100 95 5.5 led "in ok" green potentiometer (option p) test sockets led "out ok" green 171.93 (din 41494) 09066 front plate rear- face main- face back plate fig. 28 case q01, weight 480 g aluminium, fully enclosed, black finish and self cooling cassette style dc-dc converters q series edition 5/5.2000 22/25 safety and installation instructions connector pin allocation the connector pin allocation table defines the electrical potentials and the physical pin positions on the h15 con- nector. pin no. 26, the protective earth pin present on all bq...gq dc-dc converters is leading, ensuring that it makes contact with the female connector first. fig. 29 view of male h15 connector 32 28 24 20 16 12 8 4 30 26 22 18 14 10 6 10025 table 17: pin allocation of the h 15 connector pin electrical determination q 1000 q 2000 no. 4 output voltage (positive) vo1+ vo1+ 6 output voltage (positive) vo1+ vo2+ 8 output voltage (negative) vo1 C vo1 C 10 output voltage (negative) vo1 C vo2 C 12 sense line (positive) 2 s+ s+ 14 sense line (negative) 2 s C s C 16 output voltage control input 1 rr 18 current sharing control input t t 20 do not connect (internal gnd.) - - 22 output good signal (positive) out ok+ out ok + 24 output good signal (negative) out ok C out ok C 26 protective ground 2 28 inhibit control input 3 ii 30 input voltage (positive) vi+ vi+ 32 input voltage (negative) vi C vi C 1 with option p, r-input must remain unconnected. 2 leading pin (pre-connecting). 3 if not actively used, connect to pin 32. protection degree condition: female connector fitted to the unit. ip 30: all units, except those with option p (potentiometer). ip 20: all units fitted with option p (includes potentiometer). installation instructions the q series dc-dc converters are components, intended exclusively for inclusion within other equipment by an in- dustrial assembly operation or by professional installers. in- stallation must strictly follow the national safety regulations in compliance with the enclosure, mounting, creep-age, clearance, casualty, markings and segregation require- ments of the end-use application. connection to the system shall be made via the female con- nector h15 (see accessories ) . other installation methods may not meet the safety requirements. the dc-dc converters are provided with pin no. 26 ( ), which is reliably connected with the case. for safety rea- sons it is essential to connect this pin to the protective earth of the supply system if required in the table: safety concept leading to an selv output circuit . the vi input (pin no. 32) is internally fused. this fuse is de- signed to protect the unit in case of overcurrent and may not be able to satisfy all customer requirements. external fuses in the wiring to one or both input pins (no. 30 and/or no. 32) may therefore be necessary to ensure compliance with local requirements. important: whenever the inhibit function is not in use, pin no. 28 (i) must be connected to pin no. 32 (vi C ) to en- able the output(s). do not open the modules, or guaran- tee will be invalidated. long input, output and auxiliary lines or lines with inductors, filters or coupling/decoupling networks may cause instabilities. see also: technical information: sense lines . due to high output currents, the bq...gq 1001 units pro- vide two internally parallel connected contacts for both the positive and the negative output path (pins 4/6 and pins 8/10 respectively). it is recommended to connect the load to both female connector pins of each path in order to keep the voltage drop across the connector pins to an absolute minimum. make sure that there is sufficient air flow available for con- vection cooling. this should be verified by measuring the case temperature when the unit is installed and operated in the user s application. the maximum specified case tem- perature t c max shall not be exceeded. see also: thermal considerations. check for hazardous voltages before altering any connec- tions. ensure that a unit failure (e.g. by an internal short-circuit) does not result in a hazardous condition. see also: safety of operator accessible output circuit. cleaning agents in order to avoid possible damage, any penetration of cleaning fluids is to be prevented, since the power supplies are not hermetically sealed. cassette style dc-dc converters q series edition 5/5.2000 23/25 isolation the electric strength test is performed as factory test in accordance with iec/en 60950 and ul 1950 and should not be repeated in the field. power-one will not honour any guarantee claims resulting from electric strength field tests. table 18: isolation characteristic input input output output out ok out ok out ok unit to case to output to case to output to input to case to output electric required according to 1.0 2.0 1 0.5 - 2.0 1 1.0 2.0 1 kv rms strength iec/en 60950 1.4 2.8 1 0.7 - 2.8 1 1.4 2.8 1 kv dc test voltage actual factory test 1 s 2.1 4.2 1 2.1 0.3 4.2 1 2.1 4.2 1 ac test voltage equivalent 1.5 3.0 1 1.5 0.2 3.0 1 1.5 3.0 1 kv rms to actual factory test insulation resistance at 500 v dc > 300 > 300 > 300 > 100 2 > 300 > 300 > 300 m ? 1 in accordance with iec/en 60950 only subassemblies are tested in factory with this voltage. 2 tested at 300 v dc. for creepage distances and clearances refer to: technical information: safety. safety of operator accessible output circuit if the output circuit of a dc-dc converter is operator acces- sible, it shall be an selv circuit according to the iec/en 60950 related safety standards. the following table shows some possible installation con- figurations, compliance with which causes the output circuit of the dc-dc converter to be an selv circuit according to iec/en 60950 up to a configured output voltage (sum of nominal voltages if in series or +/ C configuration) of 35 v. however, it is the sole responsibility of the installer to en- sure the compliance with the relevant and applicable safety regulations. more information is given in: technical infor- mation: safety. standards and approvals all q series dc-dc converters correspond to class i equip- ment. they are ul recognized according to ul 1950, ul recognized for canada to can/csa c22.2 no. 950-95 and lga approved to iec/en 60950 standards. the units have been evaluated for: ? building in, ? basic insulation between input and case and double or reinforced insulation between input and output, based on their maximum rated input voltage, ? basic insulation between out ok and case and double or reinforced insulation between out ok and input and be- tween out ok and output, based on their maximum rated input voltage, ? operational insulation between output(s) and case ? operational insulation between the outputs ? use in a pollution degree 2 environment, ? connecting the input to a circuit which is subject to a maximum transient rating of 1500 v. the dc-dc converters are subject to manufacturing sur- veillance in accordance with the above mentioned ul, csa, en and with iso 9001 standards. ac-dc front end dc-dc con- verter mains fuse battery earth connection suppressor diode selv earth connection + C ~ ~ 10026 fuse earth connection fig. 30 schematic safety concept use fuse, suppressor diode and earth connections as per table: safety concept leading to an selv output circuit . use fuse(s) also if required by the application. see: instal- lation instructions . cassette style dc-dc converters q series edition 5/5.2000 24/25 table 19: safety concept leading to an selv output circuit conditions front end dc-dc converter result nominal minimum required grade maximum dc minimum required types measures to achieve the safety status supply of insolation, to be pro- output voltage safety status of the specified safety status of the of the dc-dc voltage vided by the ac-dc front from the front front end output output circuit converter end, including mains end 1 circuit output circuit supplied battery charger mains operational (i.e. there is 150 v 2 primary circuit dq double or reinforced insula- selv circuit 150 v ac no need for electrical iso- eq tion, based on 150 v ac and lation between the mains dc (provided by the dc-dc supply circuit and the converter) and earthed case 3 dc-dc converter input circuit) basic 60 v elv circuit bq supplementary insulation, cq based on 150 v ac (provided gq by the dc-dc converter) and earthed case 3 75 v 9 hazardous voltage cq supplementary insulation, secondary circuit based on 150 v ac and double or reinforced insula- tion 4 (both provided by the dc-dc converter) and earthed case 3 mains 60 v earthed selv bq operational insulation (provi- 250 v ac circuit 3 cq ded by the dc-dc converter) elv circuit gq input fuse 5 , output suppressor earthed 75 v unearthed cq diodes 6 , earthed output selv circuit hazardous voltage circuit 3 and earthed 3 or non secondary circuit user accessible case 150 v 2 earthed hazardous bq, cq double or reinforced selv circuit voltage secondary dq, eq insulation 4 (provided by circuit 3 or earthed gq the dc-dc converter) elv circuit 3 and earthed case 3 unearthed dq supplementary insulation, ba- hazardous voltage eq sed on 250 v ac and double secondary circuit or reinforced insulation 4 (both provided by the dc-dc converter) and earthed case 3 double or reinforced 60 v selv circuit bq, cq operational insulation (provi- gq ded by the dc-dc converter) 120 v tnv-2 circuit cq basic insulation 4 and 150 v 2 double or reinfor- dq earthed case 7 ced insulated un- eq earthed hazardous voltage secondary circuit 8 1 the front end output voltage should match the specified input voltage range of the dc-dc converter. 2 the maximum rated input voltage of the eq units according to iec/en 60950/ul 1950 is 150 v. power-one specifies the tolerance a s +12%, i.e. 168 v max. 3 the earth connection has to be provided by the installer according to the relevant safety standards, e.g. iec/en 60950. 4 based on the maximum rated output voltage from the front end. 5 the installer shall provide an approved fuse with the lowest rating suitable for the application in a non-earthed input conduct or directly at the input of the dc-dc converter (see fig.: schematic safety concept ). for ul s purposes, the fuse needs to be ul-listed. see also: input fuse . 6 each suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit t he output voltage to selv ( < 60v) until the input fuse blows (see fig.: schematic safety concept ). 7 the earth connection has to be provided by the installer according to the relevant safety standards, e.g. iec/en 60950. if the con- verter case cannot be connected to earth, the front end output circuit has to be insulated from the converter case by at least basic insulation, based on the maximum nominal output voltage from the front end. the converter case can then be considered to be a double insulated accessible part. 8 has to be insulated from earth according to the relevant safety standards, e.g. iec/en 60950, by at least supplementary insulat ion, based on the maximum nominal output voltage from the front end. 9 the nominal voltage between any input pin and earth can be up to 75 v ac or dc. cassette style dc-dc converters q series edition 5/5.2000 25/25 description of options option p output voltage adjustment option p provides a built-in multi-turn potentiometer which allows an output voltage adjustment of 10% of u o nom . the potentiometer is accessible through a hole in the front cover. static voltage drops across connectors and wires can easily be compensated. with double output modules, both outputs are affected by the potentiometer settings. if different units are parallel- connected, their individual output voltages should be set within a tolerance of 1%. if output voltages u o are set higher than u o nom , the output currents should be reduced accordingly, so that the maximum specified output power is not exceeded. option -9 extended temperature range option -9 extends the operational ambient temperature range from C 25...71 c (standard) to C 40...71 c. the power supplies provide full nominal output power with convection cooling. accessories a great variety of electrical and mechanical accessories are available: C maiting connectors including fast-on, screw, solder or press-fit terminals. C connector retension facilities. C front panels for 19" rack mounting in 3u or 6u configura- tion. C additional external input or output filters C mechanical mounting supports for chassis, din-rail and pcb mounting. for more precise details please refer to: accessory prod- ucts . |
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