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CPA Series 

OPERATING INSTRUCTIONS 

 

Electromagnetic Compatibility (EMC) 

 

A metal oxide VDR together with an input fuse and filter form an effective protection against high input voltage transients, 
which typically occur in most installations. The converters have been successfully tested to the following specifications 

 

Electromagnetic Immunity 

 

 

 Immunity type tests 

 

 

 

Electromagnetic Emission 
 

Radiated and conducted emissions comply with EN 55011/ 55022, class A. In addition, CPA500/550 meet conducted 
emissions class B. 

 

 

 

 

Typical disturbance voltage (peak) at the line input 
according to EN 55022, measured at V

i nom

 and I

o nom  

CPA500

 

Typical disturbance voltage (peak) at the line input 
according to EN 55022, measured at V

i nom

 and I

o nom  

CPA250

 

 
 
 
 

 

March 24, 2009

 

www.schroff.biz

 

73972-077/52  

     

   Page 

 

 

 

 

Содержание maxpowerPRO CPA Series

Страница 1: ...ries are highly reliable power supplies for CompactPCI systems which are increasingly used in communications industrial military aerospace and other applications These power supplies offer high power...

Страница 2: ...uption of Vi without affecting the outputs Input Transient Protection A metal oxide VDR Voltage Dependent Resistor together with the input fuse form an effective protection against high input voltage...

Страница 3: ...A dIo1 dt 2 A s Vo2 Io2 10 A dIo2 dt 2 A s 120 120 mV td regulatio n Recovery time 100 100 s Vo Temperature coefficient of output voltage TC min TC max 0 Io nom Vi min Vi max 0 3 0 2 mV K Output Vo3...

Страница 4: ...10 A dIo2 dt 2 A s 150 150 mV td regulation Recovery time 300 300 s Vo Temperature coefficient of output voltage TC min TC max 0 Io nom Vi min Vi max 0 3 0 2 mV K Output Vo3 12 V Vo4 12 V Unit Charact...

Страница 5: ...rature TA max see Temperatures the temperature measured at the measurement point of the case temperature TC see Mechanical Data will approach after an initial warm up phase the indicated maximum value...

Страница 6: ...f logic signals or to enable the source to start up before full load is applied Note If this function is not used the inhibit pin 39 can be left open circuit not connected If pin 39 is connected to a...

Страница 7: ...A250 up to Version V115 is not monitored Vi min of CPA models is considered as insufficient when vi remains for typ 30 ms below 2 Vi min Connector pin 42 signal VFAL is internally connected via the dr...

Страница 8: ...g terminals causes the converters to share the output current evenly In n 1 redundant systems a failure of a single converter will not lead to a system failure since the outputs are already decoupled...

Страница 9: ...following specifications Electromagnetic Immunity Immunity type tests Electromagnetic Emission Radiated and conducted emissions comply with EN 55011 55022 class A In addition CPA500 550 meet conducted...

Страница 10: ...ations valid for an air pressure of 800 1200 hPa 800 1200 mbar Reliability MTBF Ratings at specified case temperature Model Ground benign 40 C Ground fixed 40 C 70 C Ground mobile 50 C Unit MTBF acc t...

Страница 11: ...nected 33 M V2SENSE V2 Remote Sense 34 M S RTN Sense Return 35 M V1SHARE V1 Current Share 36 M V3SENSE V3 Remote Sense 37 M Reserved 3 38 M DEG Degrade Signal 39 M INH Inhibit 40 M Reserved 3 41 M V2S...

Страница 12: ...vides a means of mechanical electrical and fire protection To maintain SELV requirements the outputs should not be connected together in any manner which causes the total output voltage to exceed 60 V...

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