Basic characteristics data • Instruction manual
Contents
1. O m m fpoone eena aag En O d1 i OB di O O O d Fig 6 1 Mounting method 6 2 Derating E Use with the conduction cooling e g heat radiation by conduction from the aluminum base plate to the attached heat sink Fig 6 2 shows the derating curve based on the aluminum base plate temperature M Please measure the temperature on the aluminum base plate edge side Point A E Please consider the ventilation to keep the temperature on the PCB Point B less than the temperature of Fig 6 3 Fig 6 5 E It is necessary to note the thermal fatigue life by power cycle Please reduce the temperature fluctuation range as much as pos sible when the up and down of the temperature are frequently generated Contact us for more information on cooling methods MME MCh eens Instruction Manual E In the hatched area the specification of ripple and ripple noise is different from other areas A x WM 5 f SNDBS400B Eso SNDBS700B12 24 28 1 E 4 SNDBS700B36 48 z Y HU 20 10 0 10 20 30 40 50 606570 80 9095100 Temperature point A C N PointA Measuring Point Fig 6 2 Derating curve Point A 100 50 Load factor 20 10 0 10 20 30 40 50 60 70 CN2 Oo oo oo Een eon EEE2. Ear O TB1 O Ona ay o o PointB C51 Measuring Point Fig 6 3 Derating curve Point A SNDBS 13 SDN
3. V _ 0 o V V em IOJENA FG L yY Set short piece to 2 and 3 on CN8 a Connection for DC input SNDPF1000 AC L oJAC N V FG e FG ENA Set short piece to 1 and 2 on CN7 for using with SNDPF1000 Set short piece to 2 and 3 on CN7 for using with SNDPG750 Refer to 4 5 Enable ENA AC IN DC OUT b Connection for AC input Fig 2 1 Connection for Standard Use E The SNDBS Series handles only the DC input Avoid applying AC input directly It will damage the power supply COSEL E Between the same terminal name CN2 CN1 are power supply are connected internally Be used in multiple units can be cascaded Keep drawing current per pin below 7A for CN1 CN2 E Operate with the conduction cooling e g heat radiation from the aluminum base plate to the attached heat sink Reference 6 2 Derating E Please contact us If you need except SNDPG750 SNDPF1000 for the input 3 Wiring Input Output Terminal 3 1 Wiring input terminal 1 External capacitor on the Input side E When it turns on an input with a switch directly one several times the surge voltage of input voltage occurs by the inductance ingre dient of an input line and there is a possibility that a power supply may break down Please install a capacitor between VIN and VIN input terminals and absorb surge Capacitor 47uF or more E When the line impedance is hig
4. VIN o VIN Fig 3 4 Reverse input voltage protection 3 2 Wiring output terminal E The specified ripple and ripple noise are measured by the method introduced in Fig 3 5 100mm Measuring SNDBS bord VIN VOUT A m JE Dc s ii Input 0 1uF Load S e VIN VOUT A Oscilloscope LR 1 5m50Q BW 100MHz Coaxial Cable HEGE Lt p 50Q A C 0 01uF Fig 5 1 Method of Measuring Output Ripple and Ripple Noise SNDBS 9 SDN SNDBS CO EL 4 Function 4 1 Overcurrent protection MOvercurrent protection is built in and comes into effect at over 105 of the rated current Overcurrent protection prevents the unit from short circuit and overcurrent condition The unit automatically recovers when the fault condition is cleared E When the output voltage drops at overcurrent the average output current is reduced by intermittent operation of power supply 4 2 Overvoltage protection E The overvoltage protection circuit is built in The DC input should be shut down if overvoltage protection is in operation The mini mum interval of DC recycling for recovery is for 2 to 3 minutes x The recovery time varies depending on input voltage and input capacity Remarks Please note that devices inside the power supply might fail when voltage more than rated output voltage is ap
5. test gradually increase decrease the voltage for a start shut down Avoid us ing Hi Pot tester with the timer because it may generate voltage a few times higher than the applied voltage at ON OFF of a timer SNDBS 11 SN COSEL 5 Series and Parallel Operation 5 1 Series operation Series operation is available by connecting the outputs of two or more power supplies as shown below Output current in series connection should be lower than the lowest rated current in each unit a Power Supply Load Power Supply _ Power Supply _ Load Load Power Supply _ Fig 5 1 Serial operation 5 2 Parallel operation Master slave operation E Parallel operation is available by connecting the units as shown in Fig 5 2 E You can adjust the output voltage in parallel operation by adjust ing a potentiometer of just one power supply To do so select one power supply as the master unit and turn the potentiometers of the other slave power supplies clockwise to the end Once you have done this you can adjust the output voltage by turning the potentiometer of the master unit E You cannot parallels operate power supplies with different output voltage or electrical power E As variance of output current drew from each power supply is maxi mum 10 the total output current must not exceed the value deter mined by the foll
6. 1 second IOG circuit is designed as shown in Fig 4 1 and specification is shown in Table 4 1 Malfunction of inverter The output voltage drops by 60 or less of the rated voltage When output wattage is decreased radically to less than 10 of rated wattage 4 5 Enable signal ENA E When connect SNDPF or SNDPG to input of SNDBS you can operate it to start a stop of SNDPF by connecting ENA In this case please set the short piece of CN8 on 1 pin and 2 pins to prevent the trouble of the power supply E When the power supplies are shipped from a factory they come with a dedicated short piece being mounted on CN7 If you use SNDPF1000 you can use the power supplies as they are If you use SNDPG750 you must set short piece to pin2 and 3 on CN7 Short piece Short piece CN7 CN7 ES ES 1 2 3 1 2 3 ENA terminal Enable ENA terminal Disable at shipping from factory Fig 4 2 Setting of ENA E If you do not use ENA remove the short piece to pin 2 and 3 at CN8 shown in Fig 4 3 Short piece Short piece CN8 CN8 al 2 3 1 2 3 The ENA terminal is effective The ENA terminal is invalid Initial setting Fig 4 3 Setting of ENA CO EL 4 6 Remote ON OFF RC2 E You can operate the remote ON OFF function by sending signals to CN4 Please see Table 4 2 for spec
7. SNDBS COSEL Basic Characteristics Data Basic Characteristics Data Switching Input rusi PCB Pattern SER Model Circuit method frequency current E en 21 Single Double E aa kHz A circuit Material sided sided operation operation SNDBS400B Forward converter 370 1 72 1 450V 5A FR 4 Yes Yes Yes 2 SNDBS700B Forward converter 381 2 76 1 450V 10A FR 4 Yes Yes Yes 2 1 Refer to specification 2 Refer to Instruction Manual SNDBS 6 ma Instruction Manual COSEL Terminal Connection SNDBS 8 Connection for Standard Use SNDBS 8 Wiring Input Output Terminal SNDBS 9 3 1 MN WIM UTILS nina casa e ca SNDBS 9 322 Wining o utputtermin altra re ager eg er SNDBS 9 Function cus 4 1 Overcurrent protection gt SNDBS 10 42 Overvoltage protection SNDBS 10 4 3 Thermal detection Thermal protection SNDBS 10 4 4 Inverter operation monitor OG 22222 soo nnn neem SNDBS 10 4 5 Epablesignal ENA 3 SNDBS 10 AS REMO ON OA G2 m a SNDBS 11 A O Ing sse8ssessesecsseseseasess sssnesassssactennnsansnsansssssassssssastsnsessass SNDBS 11 AS O puto ltagerad Us tig a SNDBS 11 4 9 Isolation 22 02222ec neon ee cence 7171777777775755 SNDBS 11 Series and Parallel operation SNDBS 12 51 Series operation a SNDBS 12 5 2 Parallel operation Master slave operation SNDBS 12 983 Nil Redundancy operat
8. dant operation for improving reliabil ity of power supply system Purpose of redundant operation is to ensure stable operation in the event of single power supply failure Since extra power supply is reserved for the failure condition so total power of redundant operation is equal to N 1 E Please contact us about N 1 redundant operation in details COSEL 6 Implementation Mounting Method 6 1 Mounting method E When two or more power supplies are used side by side position them with proper intervals to allow enough air ventilation Alumi num base plate temperature around each power supply should not exceed the temperature range shown in derating curve M in case of metal chassis keep the distance between d1 for to insulate between lead of component and metal chassis use the spacer of 4mm 0 16 inches or more between d1 If it is less than d1 insert the insulation sheet between power supply and metal chassis E Avoid placing the DC input line wires underneath the unit it will increase the line conducted noise Make sure to leave an ample distance between the line pattern lay out and the unit Also avoid placing the DC output line wires underneath the unit because it may increase the output noise Lay out the pattern away from the unit
9. g 2 S Remote sensing 3 TRM Adjustment of output voltage 4 VB Voltage balance 5 CB Current balance Common signs among CN4 and CN5 represent the same potential Table 1 6 Terminal connection and functions of CN7 Pin No Function 1 Setting of Set short piece to 1 and 2 with SNDPF1000 2 ENA Set short piece to 2 and 3 with SNDPG750 Short piece for setting is attached on CN7 at shipping from factory SNDBS 8 EN Instruction Manual Table 1 7 Terminal connection and functions of CN8 Pin No Function Set short piece to 1 and 2 when ENA is Setting of ENA Enable at shipping from factory effective Set short piece to 2 and 3 when ENA is Disable Short piece for setting is attached on CN8 at shipping from factory 1 2 Table 1 8 Mating connectors and terminals of CN1 CN2 CN3 CN4 CN5 and CN6 TER Connector aing Terminal Mfr connector Reel SVH 21T P1 1 CNI B3p4 vH B VHR aN Ree S CN2 Loose BVH 21T P1 1 Reel SXH 001T PO CN3 B4B XH AM xHp 4 eel SXH 001T Po 6 Loose BXH 001T P0 6 JST Reel SXH 001T P0 6 CN4 B3B XH AM XHp g eel SXH 001T Po 6 Loose BXH 001T P0 6 Reel SXH 001T PO ONS B5B xH aM xHp 5 Heel SXH 001T P0 6 CN6 Loose BXH 001T P0 6 2 Connection for Standard Use Win order to use the power supply it is necessary Fig 2 1 DC power SNDBS supply v Qw NA DC OUT
10. h or the input voltage rise quickly at start up less than 10us install a capacitor between VIN and VIN input terminals E Install a correspondence filter if a noise standard meeting is re quired or if the surge voltage may be applied to the unit Please contact us in details 2 Input voltage rang Input current range E The specification of input ripple voltage is 40Vp p E Make sure that the voltage fluctuation including the ripple volt age will not exceed the input voltage range E Use a front end unit with enough power considering the start up current Ip of this unit 3 Operation with AC input E The SNDBS series handles only for the DC input A front end unit AC DC unit is required when the SNDBS series is operated with AC input 4 Reverse input voltage protection E Avoid the reverse polarity input voltage It will break the power supply It is possible to protect the unit from the reverse input voltage by installing an external diode ov o l o a E z S 2 Ripple 8 gt 5 3 2 Time E Fig 3 1 Ripple of input voltage E aa Instruction Manual Input voltage range lt Ip pa o 2 i Input voltage V Fig 3 2 Input current characteristics DC SNDBS Load AC O SNDBS Load AC Q Rectifier SNDBS Load Fig 3 3 Use wit AC input a SNDBS b SNDBS VIN PrO IN Di Di
11. ifications E Remote ON OFF circuits RC2 is not isolated from output 235K o NW i i y Do typ gt gt Ls orp N POWER 4 Fig 4 3 Remote ON OFF RC2 Table 4 2 Specification of output side remote ON OFF RC2 No Item RC2 1 Power ON Open 0 1mA max 2 Power OFF Short 8mA min 3 Base pin S 4 7 Remote sensing 1 When the remote sensing function is not in use E If you do not use the remote sensing function you can short out between S and M and between S and M on CN3 When the power supplies are shipped from a factory they come with a dedicated harness being mounted on CN3 If you do not use the remote sensing function you can use the power supplies as they are 2 When the remote sensing function is in use E Please see Fig 4 2 if you use the remote sensing function Wire as close as possible A nu ml WN VOUT zz Co Load VOUT AN Fig 4 2 Connection when the remote sensing is in use E Wire carefully When a connection of a load line becomes loose due to such factors as loose screw the load current flows to the sensing line and internal circuits of the power supply may be damaged E Use a sufficiently thick wire to connect between the power supply and the load and keep the line drop at 0 3V or below E Use a twisted pair wire or a shielded wire as the sensing line H Do not draw the output current fr
12. ion SNDBS 12 6 Implementation Mounting Method SNDBS 13 6 1 Mo ntingimethodi a a eea SNDBS 13 6 2 Derating A ae eS oa SNDBS 13 SNDBS SNDBS 7 SNDBS COSEL 1 Terminal Connection CN7 CN8 CN6 CN5 CN4 CN3 L ELE Se o m mo ao alo a E Q oie o lo Table 1 1 Terminal connection and functions No vena Function MO VOUT DC output VOUT DC output Table 1 2 Configuration and functions of CN1 and CN2 Pin No Function 1 ENA B Enable signal 2 VIN DC input 8 NC No connection 4 VIN DC input Housing for protection is attached on CN2 at shipping from factory Table 1 3 Configuration and functions of CN3 Pin No Function 4 M Self sensing terminal Do not wire for external connection 2 S Remote sensing 3 S Remote sensing 4 M Self sensing terminal Do not wire for external connection Short pieces for without remote sensing is attached on CN3 at ship ping from factory Table 1 4 Terminal connection and functions CN4 Pin No Function 1 RC2 Remote ON OFF 2 TEMP Thermal detection Thermal protection 3 IOG Inverter operation monitor Table 1 5 Terminal connection and functions of CN5 and CN6 Pin No Function 1 S Remote sensin
13. om M M S or S a meen Instruction Manual E When the remote sensing function is used the output voltage of the power supply may show an oscillating waveform or the output voltage may dramatically fluctuate because of an impedance of wiring and load conditions 4 8 Output voltage adjusting 1 Adjusting method by installed potentiometer Ml Output voltage is adjustable by the internal potentiometer or by applied voltage externally The adjustable range is 90 110 of the rated output voltage To increase an output voltage turn a built in potentiometer clock wise To decrease the output voltage turn it counterclockwise E The output adjustment range for DBS700B is shown in Fig 4 4 p m o I I I i I I 105 a ye 0 aoov 250 Input voltage V Output voltage Fig 4 4 SNDBS700B Output Voltage Adjustment Range 2 Adjusting method by applying external voltage E By applying the voltage externally at TRM output voltage become adjustable Output voltage is calculated by the following equation Applied voltage externally V 1 V E f the output voltage decreases to almost OV output ripple may become large E When the output voltage adjustment is used note that the over voltage protection circuit operates when the output voltage sets too high Output voltage V X Rated output voltage V 4 9 Isolation E For a receiving inspection such as Hi Pot
14. owing equation ie current A 7 H rated current i 4 X number of unit X 0 9 parallel operation per unit In parallel operation the maximum operative number of units is 5 E When the number of the units in parallel operation increases input current increases Adequate wiring design for input circuitry such as circuit pattern wiring and current for equipment is re quired Connect the sensing line and the power line by one point after connecting each power supply s sensing pins S S In multiple operation sensing wires should be connected between each units for the muster connection to a load SNDBS 12 MMMM icc Instruction Manual E Connect the sensing line and the power line by one point after connecting each power supply s sensing pins S S In multiple operation sensing wires should be connected between each units for the muster connection to a load E Output current should be 10 or more of the total of the rated output current in parallel operation If less than 10 the IOG sig nal might become unstable and output voltage slightly increasing max5 E IOG signal might be unstable for one second when the units are turned on in parallel operation E Please be connected diode to the VOUT side to avoid malfunc tions and damage Sensing point Fig 5 2 Examples of parallel operation 5 3 N 1 Redundancy operation E It is possible to set N 1 redun
15. plied to output termi nal of the power supply This could happen when the customer tests the overvoltage performance of the unit 4 3 Thermal detection Thermal protection E Thermal detection TMP and protection circuit are built in E When overheat is detected thermal detection signal TMP turns L from H TMP circuit is designed as shown in Fig 4 1 and specification is shown as in Table 4 1 E When overheating continues after detecting the TMP signal the output will be shut down by the thermal protection circuit When this function comes into effect input voltage should be shut off and eliminate all possible causes of overheat condition and lower the temperature of the unit to the normal level gt 22k 0 6V typ TMP or lOG a LL e 975 Fig 4 1 TMP IOG circuit Table 4 1 Specification of TMP IOG No Item TMP IOG HE incio Normal operation H Normal operation L Overheat detection L Malfunction of inverter H 2 Base pin S 3 Level voltage L 0 5Vmax at 5mA 4 Level voltage H 5V typ 5 Maximum sink current 10mA max 6 Maximum applicable voltage 35V max SNDBS 10 MME Instruction Manual 4 4 Inverter operation monitor IOG E By using the inverter operation monitor IOG malfunction of the inverter can be monitored When inverter operation is in following mode or IOG signal turns H from L within
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