Com-Power CDN M Instruction Manual Download | Manualshive

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Summary of Contents for CDN M

Page 1: ... 2 1 1 E E L L T T O O R R O O R R O O A A D D S S I I L L V V E E R R A A D D O O C C A A L L I I F F O O R R N N I I A A 9 9 2 2 6 6 7 7 6 6 9 9 4 4 9 9 4 4 5 5 9 9 9 9 6 6 0 0 0 0 c c o o m m p p o o w w e e r r c c o o m m Rev072518 I IN NS ST TR RU UC CT TI IO ON N M MA AN NU UA AL L f fo or r C CD DN N M M s se er ri ie es s C CO OU UP PL LI IN NG G D DE EC CO OU UP PL LI IN NG G N NE ET TW ...

Page 2: ...ro od du uc ct t A Ap pp pl li ic ca at ti io on n 1 14 4 4 4 1 1 C CD DN N T Th he eo or ry y 1 14 4 4 4 2 2 S Sa af fe et ty y C Co on ns siid de er ra at tiio on ns s 1 15 5 4 4 3 3 C CD DN N P Po ow we er r C Co on nn ne ec ct tiio on ns s 1 16 6 4 4 4 4 C CD DN N S Se elle ec ct tiio on n 1 18 8 5 5 0 0 C Ca al li ib br ra at ti io on n o of f E El le ec ct tr ri ic ca al l P Pe er rf fo or r...

Page 3: ...V Vo ollt ta ag ge e D Diiv viis siio on n F Fa ac ct to or r 2 22 2 F Fiig gu ur re e 1 11 1 N No or rm ma alliiz za at tiio on n a an nd d M Me ea as su ur re em me en nt t S Se et tu up p f fo or r C CD DN N I Is so olla at tiio on n D De ec co ou up plliin ng g F Fa ac ct to or r 2 23 3 F Fiig gu ur re e 1 12 2 E Ex xa am mp plle es s o of f T Te es st t G Ge en ne er ra at to or r E Eq qu uii...

Page 4: ...ta ag ge e D Diiv viis siio on n F Fa ac ct to or r 2 22 2 E Eq qu ua at tiio on n 2 2 C Ca allc cu ulla at tiio on n o of f C CD DN N I Is so olla at tiio on n D De ec co ou up plli in ng g A At tt te en nu ua at tiio on n 2 23 3 E Eq qu ua at tiio on n 3 3 U Uo o v vs s U Um mr r R Re ella at tiio on ns sh hiip p 2 26 6 E Eq qu ua at tiio on n 4 4 C Co or rr re ec ct tiio on n o of f U Um mr r f...

Page 5: ...els and performing testing Also included are important safety precautions warranty and maintenance information The test procedures and guidance provided herein is for general guidance and is correct to the extend of our knowledge and understanding of the current relevant IEC EN standards at the time that this manual was written However the information may become dated or may be inappropriate for s...

Page 6: ...S A A V VA AI I L LA A B B L LE E F FR RO O M M C C O OM M P P O OW WE E R R 1 1 9 9 1 1 2 2 1 1 E E L L T T O O R R O O R R O O A A D D S S I I L L V V E E R R A A D D O O C C A A L L I I F F O O R R N N I I A A 9 9 2 2 6 6 7 7 6 6 9 9 4 4 9 9 4 4 5 5 9 9 9 9 6 6 0 0 0 0 c c o o m m p p o o w w e e r r c c o o m m Rev072518 2 2 0 0 P Pr ro od du uc ct ts s A Av va ai il la ab bl le e f fr ro om m...

Page 7: ... om mi in ng g I In ns sp pe ec ct ti io on n WARNING To avoid possibility of electrical shock do not apply power to the CDN or any of its accessories if there is any evidence of shipping damage If shipping damage to the product or any of the accessories is suspected or if the package contents are not complete contact Com Power or your Com Power distributor Please check the contents of the shipmen...

Page 8: ...e with a lightning bolt indicates an alert to the user that uninsulated dangerous voltages are present within the product enclosure and on output connectors These voltages may be of sufficient magnitude to constitute a risk of electric shock to persons The Ground symbol inside a circle indicates terminal which is intended for connection to an external conductor for protection against electric shoc...

Page 9: ...eat sources such as heat registers or other instruments which produce heat POWER SOURCES Connect the instrument only to the type of power source described in the operating instructions or as marked on the instrument GROUNDING Take precautions to insure that the grounding of the instrument is not defeated Grounding conductor with adequate cross section must be connected between a grounding conducto...

Page 10: ... used NON USE PERIODS Unplug the power cords of the instrument when it will be left unused for a long period of time OBJECT AND LIQUID ENTRY Take care that objects do not fall into the instruments and that liquids are not spilled into the enclosure through openings DEFECTS AND ABNORMAL STRESS Whenever it is likely that the normal operation has been impaired make the equipment inoperable and secure...

Page 11: ...tor equipment EUT Port 2 Port for connection of the EUT power input lines Depending on the CDN model this port is fitted with between one 1 and five 5 shrouded power connectors AE Port 3 Port for connection to the EUT power source Depending on the CDN model this port is fitted with between one 1 and five 5 shrouded power connectors Conductive CDN Base Plate 4 This plate provides a means by which t...

Page 12: ...dB 40 dB 20 45 dB 20 45 dB 1 5 MHz to 230 MHz 50 20 dB 55 15 dB 50 20 dB 50 10 dB 50 5 dB 55 15 dB 40 20 dB 40 10 dB 45 20 dB 45 20 dB slopes increase decrease linearly with the logarithm of frequency Voltage Division Factor 9 5 dB 150 kHz to 10 MHz 0 5 1 dB 0 5 1 dB 0 5 1 dB 0 5 1 5 dB 0 5 1 5 dB 0 5 1 dB 0 5 1 5 dB 0 5 1 5 dB 0 5 1 dB 0 5 1 dB 10 MHz to 230 MHz 0 5 1 5 dB 0 5 3 dB 0 5 2 5 dB 0 5...

Page 13: ...e er rf fo or rm ma an nc ce e D Da at ta a 70 90 110 130 150 170 190 210 230 0 1 1 10 100 1000 Frequency MHz Impedance Ω F Fi ig gu ur re e 3 3 T Ty yp pi ic ca al l I Im mp pe ed da an nc ce e D Da at ta a 40 30 20 10 0 10 20 30 40 0 1 1 10 100 1000 Frequency MHz Phase degrees F Fi ig gu ur re e 4 4 T Ty yp pi ic ca al l P Ph ha as se e D Da at ta a 5 7 9 11 13 15 0 1 1 10 100 1000 Frequency MHz...

Page 14: ...r IEC 61000 4 6 CDNs provide a standardized common mode impedance for the EUT power lines which is independent of the external power line impedance The RF test signal is injected via the RF port of the CDN and is coupled onto the EUT power lines directly for the PE conductor and capacitively for all other conductors through an effective resistance of 100 ohms Refer to Figure 7 below F Fi ig gu ur ...

Page 15: ...onnection between the CDN base plate and an exposed conductive surface of the floor or wall of a shielded enclosure The CDN base plate should be bolted to the surface using the mounting holes on the front and back of the CDN base plate No signal or operating voltages currents shall exceed those specified in the product specifications listed in section 3 5 The CDN power input port must connected to...

Page 16: ...Amp CDNs are provided The mating connectors for the 25 Amp and 100 Amp CDNs can be purchased commercially and are commonly available The mating connectors for all M series CDNs are listed below in Table 2 T Ta ab bl le e 2 2 E EU UT T A AE E P Po or rt t C Co on nn ne ec ct to or rs s CDN Model EUT AE Port Connectors Mating Connectors CDN M125E CDN M225E CDN M325E CDN M425E CDN M525E 4 mm Shrouded...

Page 17: ...W WO OR RK KS S C CD DN Ns s SECTION 4 PRODUCT INSTALLATION 19121 El Toro Rd Silverado California 92676 949 459 9600 com power com Rev072518 To power the EUT through an M series CDN follow the step by step procedure described in Figure 8 F Fi ig gu ur re e 8 8 S St te ep p b by y S St te ep p P Pr ro oc ce ed du ur re e t to o P Po ow we er r E EU UT T t th hr ro ou ug gh h C CD DN N ...

Page 18: ...est EUT based on Table 3 below and T Ta ab bl le e 3 3 C CD DN N S Se el le ec ct ti io on n A Ac cc co or rd di in ng g t to o E EU UT T C Cu ur rr re en nt t EUT Current Applicable CDN s 25 Amperes CDN Mx25E CDN Mx50E CDN Mx100 50 Amperes CDN Mx50E CDN Mx100 100 Amperes CDN Mx100 2 the input power configuration of the device to be powered through the CDN based on Table 4 below and T Ta ab bl le ...

Page 19: ...currents which shall be connected to the reference ground plane through the CDN M1 when the characteristics or specification of the EUT permit In this case the power supply shall be provided through an appropriate CDN Mx type network when the characteristics or specification of the EUT do not permit the presence of a CDN M1 network in series with the earth terminal for RF or other reasons the eart...

Page 20: ...rs s Calibration of Coupling Decoupling Networks can be divided into two categories The first category includes the calibration measurement of its electrical performance parameters such as common mode impedance phase voltage division factor and in some cases isolation or decoupling attenuation These calibrations are typically performed on a periodic basis in order to verify that the CDN continues ...

Page 21: ...RT LOAD OSL method using female BNC standards The impedance phase measurement is performed once with the AE port conductors shorted to GND and again with the AE port conductors shorted together but not shorted to GND F Fi ig gu ur re e 9 9 C Ca al li ib br ra at ti io on n a an nd d M Me ea as su ur re em me en nt t S Se et tu up p f fo or r C CD DN N I Im mp pe ed da an nc ce e P Ph ha as se e Th...

Page 22: ...DN is the difference between the voltage level injected into RF port of the CDN and the voltage measured at the output of the 150Ω to 50Ω adapter connected to the EUT port of the CDN See Equation 1 E Eq qu ua at ti io on n 1 1 C Ca al lc cu ul la at ti io on n o of f C CD DN N V Vo ol lt ta ag ge e D Di iv vi is si io on n F Fa ac ct to or r A typical setup for equipment normalization and measurem...

Page 23: ...e isolation is measured by injecting a voltage Vin into the AE port through a 150Ω to 50Ω Adapter measuring the voltage level at the RF port Vout with the EUT port open and then shorted to GND see Figure 11 The isolation is calculated as shown in Equation 2 E Eq qu ua at ti io on n 2 2 C Ca al lc cu ul la at ti io on n o of f C CD DN N I Is so ol la at ti io on n D De ec co ou up pl li in ng g A A...

Page 24: ...e purpose of setting the specific level for the test to be performed i e 1 Vrms 3 Vrms 10 Vrms etc This calibration as well as the actual test is performed at a minimum of 633 discrete frequencies While it is possible to perform these processes manually without software it is highly recommended that it be performed as an automated process under software control 6 6 1 1 C Ca al li ib br ra at ti io...

Page 25: ...e level Umr The primary difference between the two methods relates to a the method with which the test generator output is quantified at each frequency during calibration when the appropriate test level is achieved and b the method with which the same test generator output level set during calibration is reproduced at each frequency during actual EUT testing METHOD A For method A once the appropri...

Page 26: ...bration process Umr must be calculated Umr represents the voltage to be measured at the output of the 150Ω to 50Ω Adapter connected to the EUT port of the CDN and must not be confused with the open circuit test level Uo for the calibration i e 1 Vrms 3 Vrms 10 Vrms etc as specified in Table 1 of IEC 61000 4 6 The relationship between Umr and Uo for CDN calibration is given in Equation 3 E Eq qu ua...

Page 27: ...nally shown in Figure 13 are the coaxial cables and attenuator installed between the output of the 150Ω to 50Ω Adapter where Umr is measured and the measuring instrument F Fi ig gu ur re e 1 13 3 U Um mr r M Me ea as su ur re em me en nt t L Li in ne e The calculated Umr value must be corrected for the attenuation of the attenuator and the insertion losses of Cable 1 and Cable 2 shown in Figure 13...

Page 28: ... calculated using Equation 3 can now be corrected using Equation 4 As the calibration results are frequency dependent the corrections must be applied with respect to frequency E Eq qu ua at ti io on n 4 4 C Co or rr re ec ct ti io on n o of f U Um mr r f fo or r A At tt te en nu ua at to or r a an nd d I In ns se er rt ti io on n L Lo os ss s o of f M Me ea as su ur re em me en nt t C Ca ab bl le ...

Page 29: ... T Te es st t L Le ev ve el l O Of ff fs se et t C Ca al lc cu ul la at ti io on ns s If the CDN will be used for multiple test levels 1 Vrms 3 Vrms 10 Vrms etc calibration should be performed at the highest test level Calibration data for the lower test levels can then be calculated as shown in Equation 5 E Eq qu ua at ti io on n 5 5 C Ca al lc cu ul la at ti io on n o of f U Uo of ff fs se et t ...

Page 30: ...p size at any given frequency is equal to 1 of the present frequency as calculated using Equation 7 E Eq qu ua at ti io on n 7 7 C Ca al lc cu ul la at ti io on n o of f F Fr re eq qu ue en nc cy y S St te ep p S Si iz ze es s A truncated example of the test frequencies showing the respective step sizes is shown in Table 7 T Ta ab bl le e 7 7 T Tr ru un nc ca at te ed d T Ta ab bl le e o of f C Ca...

Page 31: ... and Calibration Accessories Adapters as shown in Figure 15 The bottom surfaces of the CDN both shorting adapters and both 150Ω to 50Ω Adapters should be flush against the top surface of the ground plane and should be either a fastened using bolts or screws directly to the ground plane through their respective mounting holes or b bonded to the ground plane using copper tape with conducted adhesive...

Page 32: ... 9 1 1 2 2 1 1 E E L L T T O O R R O O R R O O A A D D S S I I L L V V E E R R A A D D O O C C A A L L I I F F O O R R N N I I A A 9 9 2 2 6 6 7 7 6 6 9 9 4 4 9 9 4 4 5 5 9 9 9 9 6 6 0 0 0 0 c c o o m m p p o o w w e e r r c c o o m m Rev072518 As shown in Figure 16 complete the calibration setup for METHOD A or METHOD B as appropriate F Fi ig gu ur re e 1 16 6 E Ex xa am mp pl le e E Eq qu ui ip ...

Page 33: ... power amplifier minus 5 1 dB adjust the amplitude setting of the signal generator until the amplitude measured on the measuring instrument is equal to the Umr ATT xx value 1 5 dB calculated as described in section 6 2 1 for the open circuit test level Uo for which calibration is being performed S St te ep p 3 3 Record either the frequency fx and amplitude setting of the signal generator SGout or ...

Page 34: ...ncy of the signal generator to 150 kHz without modulation S St te ep p 2 2 Adjust the signal generator output to either the respective SGout value determined during calibration for the present test frequency or the level at which the power indicated by the power meter is equal to the respective FWDpwr value determined during calibration for the present test frequency S St te ep p 3 3 Record the am...

Page 35: ... and no other input output ports F Fi ig gu ur re e 1 17 7 E Ex xa am mp pl le es s o of f T Ty yp pi ic ca al l T Te es st t S Se et tu up ps s Test setups for devices having multiple I O ports are more complex and usually require multiple CDNs of different types Refer to the IEC 61000 4 6 standard for guidance When a CDN is employed as a CDN in the test setup but is not connected to the Test Gen...

Page 36: ...r as required by the applicable standard s and with the EUT being exercised as required for the test set the frequency of the signal generator to 150 kHz modulated as required usually 1 kHz AM 80 S St te ep p 2 2 Using the appropriate calibration data result table for the test level at which the test will be performed set the signal generator output to either a the respective SGout value determine...

Page 37: ... etc Normal wear Calibration Products shipped outside the United States without the prior knowlege of Com Power In addition Com Power shall not be obliged to provide service under this warranty to repair damage resulting from attempts to install repair service or modify the instrument by personnel other than Com Power service representatives Under no circumstances does Com Power recognize or assum...

Page 38: ...N I I A A 9 9 2 2 6 6 7 7 6 6 9 9 4 4 9 9 4 4 5 5 9 9 9 9 6 6 0 0 0 0 c c o o m m p p o o w w e e r r c c o o m m Rev072518 9 9 0 0 M Ma ai in nt te en na an nc ce e This product contains no user serviceable parts If the unit does not operate or needs calibration please contact Com Power Corporation Any modifications or repairs performed on the unit by someone other than an authorized factory trai...

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