Array Solutions Array Solutions X8NOM2000 Amateur Radio Service Linear HF Amplifier User Manual Exhibit6
Array Solutions dba Array Solutions Amateur Radio Service Linear HF Amplifier Exhibit6
Contents
- 1. Users Manual OM2000+
- 2. User Manual replacement exhibit 6
User Manual replacement exhibit 6
Exhibit'6:'User’s'Manual' External)Radio)Frequency) Power)Amplifier)OM2000+) Model)2000+) Array%Solutions% 2611%North%Beltline%Rd%% Suite%109% Sunnyvale,%Texas%75182% USA% Tel:%214%954%7140% fax:%214%954%7142% E-mail: info@arraysolutions.com Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!1!!from!35! ! TABLE%OF%CONTENTS% 1. GENERAL!INFORMATION! .....................................................................! 4! 2.1.! Introduction! ………………………………………………………………….! 4! 2.2.! Specification! ………………………………………………………………….! 4! !!!!2.2.1.!!!!!!Parameters! ! ………………………………………………………………….! 4! !!!!2.2.2.!!!!!!Protection!Circuits! ………………………………………………………………….! 4! !!!!2.2.3.!!!!!!Indicators! ! ………………………………………………………………….! 5! !!!!2.2.4.!!!!!!Features! ………………………………………………………………….! 5! 2. SAFETY!INSTRUCTIONS! ! ………………………………………………………………….! 6! 3. GENERAL!DESCRIPTION!! ………………………………………………………………….! 7! 3.1. ! HF!part! ! ………………………………………………………………….! 7! 3.2. ! Power!Supply! ! ………………………………………………………………….! 8! 3.3. ! Safety!Devices! ! ………………………………………………………………….! 9! ………………………………………………………………….! 9! 4. INSTALLATION! ! 4.1. ! Grounding! ………………………………………………………………….! 10! 4.2. ! Coaxial!Cable! ! ………………………………………………………………….! 10! 4.3. ! Control!Cable! ! ………………………………………………………………….! 10! 4.4. ! Main!Supply! ………………………………………………………………….! 11! 4.5. ! Cooling!! ………………………………………………………………….! 11! ………………………………………………………………….! 12! ………………………………………………………………….! 12! 5. OPERATION! 5.1. ! Operation!Elements! 5.2. ! Preparation!for!operation!!!……………………………………………………………….! 14! 5.2.1. Display!menu! ………………………………………………………………….! 15! 5.2.2. Settings!menu! ………………………………………………………………….! 17! 5.2.3. Service!menu! ………………………………………………………………….! 19! ………………………………………………………………….! 22! 5.4. ! Tuning!of!the!Power!Amplifier!!………………………………………………………! 6. MAINTENANCE!! ………………………………………………………………….! 24! 5.3. ! 6.1. ! Operation!mode! Indication!of!Fault!Conditions!!!………………………………………………………! 28! 28! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!2!!from!35! ! 6.2. ! Fuse!Replacement! ………………………………………………………………….! 31! 6.3. ! Tube!Replacement! ………………………………………………………………….! 31! 6.4. ! Cleaning! ………………………………………………………………….! 31! ………………………………………………………………….! 32! 7. APPENDIX! 7.1. ! Primary!AC!selection! ………………………………………………………………….! 32! 7.2. ! Removing!the!HV!Transformer!!!…………………………………………………….! 33! 7.3. ! Block!Diagram!of!the!OM2000+!Power!Amplifier!!!…………………………! 35! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!3!!from!35! ! 1. GENERAL%INFORMATION% 1.1. Introduction' he!OM!Power!model!OM2000+!is!designed!for!!all!short!wave!amateur!bands!from!1.8!to!29.7!MHz! (including! WARC! bands)! ! plus! 50! MHZ! and! all! modes.! ! It! is! equipped! with! a! ceramic! tetrode!!!!!!!!!!! FUa728F.) T! 1.2. ''Specification' 1.2.1. ''Parameters' Frequency!Coverage! ! Power!Output! ! Input!Power! ! Input!Impedance! Power!Gain! Output!Impedance! Maximum!Output!SWR!! SWR!protection!! Intermodulation!distortion! Suppression!of!harmonics! Tubes! ! Cooler! ! Power!supply! ! Transformers! ! Dimensions! Weight!! Amateur!Bands!1.8!–!29.7!MHz!including!WARC!+!50!MHz! 1500!W!in!SSB/CW!on!HF!bands,!1500!W!in!CW/SSB!on!6m! 1500!W!in!RTTY! Usually!70W!for!full!Output!Power! 50!Ohm,!VSWR!!l!<).!! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!24!!from!35! ! Press!OPER!to!enter!operation!mode.!Apply!low)input)power!and!press!PTT.!Be!sure!you!selected!right! BAND,!TUNE!and!LOAD!knob!positions.!!If!you!made!some!mistake,!fault!message!appears:! Safety! circuit! stopped! transmitting,! fault! LED! is!ON!(Fault!code!4!is!saving!to!the!memory).!! Release! PTT,! set! proper! positions! of! BAND,! TUNE! and! LOAD! according! to! the! table! and! press)PTT!again.! Another!mistake!can!occur,!if!you!have!antenna!connected!to!the!wrong!output.!In!such!a!case!„SWR) is)too)high“!error!message!appears.!Change!antenna!output!using!S4!button.! This! is! not! an! optimal! result,! TUNE! indicator! must! go! between! both! arrows.! Use! TUNE! knob! to) get) maximum) output) power) and! LOAD!knob!to!get)indicator)between)arrows.!! Another! example! of! not! optimal! result,! TUNE! indicator! must! go! between! both! arrows.! Use! TUNE! knob! to) get) maximum) output) power) and! LOAD! knob! to! get) indicator) between) arrows)(in!arrows!direction).! This!is!a!good)result!of!tuning.! Now!increase!input!power!slowly!and!watch! the!display.! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!25!!from!35! ! Two! of! important! information! is! visible! –! screen) current) increased,! but! still! is! within! the! allowed! limits.! ! Turn! LOAD! knob! slightly! in! arrows! direction! to) get) TUNE) indicator) between)arrows.) Display!indicates!correct)tuning!of!the!Power! amplifier.! ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))Remember! Always!use!TUNE!knob!to!get!maximum!output!power.!Use!LOAD!knob!to!get!TUNE!indicator!on!the! display!to!the!middle!position!between!both!arrows.!Simultaneously!check!if!Is)graph!indicator!stays! within!the!boundaries.!Repeat!both!steps!more!times.) Proper! operation! mode! of! FUa728F! requires! the! plate! voltage! to! be! close! to! 3! kV.! ! If! anode! voltage! without!RF!power!is!much!lower,!watch!the!heating!voltage,!too.!Normally,!heating!voltage!must!be!in! boundaries!from!8.5!to!9!V!without!RF!signal!(DSP3).!!Heating)voltage)level)is)a)reliable)indicator)of) correct)AC)selector)adjustment.!If!you!see!heating!voltage!lower!than!8.5V!without!RF!signal,!change! primary!AC!voltage!selector!one!step!down!(if!possible).!Conversely,!if!the!voltage!is!higher!than!9V,!try! to!move!AC!selector!one!step!up!(for!example!from!220!to!230!VAC).!!Check!heating!voltage!under!full! load!(full!output!power),!also.!!If!the!heating!voltage!without!RF!signal!is!OK!but!under!full!load!drops! more! than! 1.5! V,! this! relates! to! the! „soft“! AC! network! and! is! solvable! only! by! „changing“! the! AC! network...! Without!RF!power!the!plate!voltage!is!OK.! Without!RF!power!the!plate!voltage!is!2.85!kV.! Check! the! heating! voltage,! too.! If! it! is! below! 8.5! V,! this! indicates! the! need! to! change! AC! selector! position! one! step! down! (for! example! from!230!to!220!VAC).! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!26!!from!35! ! To!start)the)second)method!of!fine!tuning,!press!S2)(TUNE)!button!in!OPER!mode.! PA! is! in! the! operation! mode.! After! TUNE! button! (S2)! was! pressed,! it! changes! its! function.!!Now!STOP!is!blinking.! Do!not!press!STOP!button!yet!! Apply!input!power!according!tune!table!(or!lower)!for!selected!band!and!press!PTT.!Use!TUNE)knob!to! get!maximum!output!power.!Use!LOAD)knob!to!get!Is!!graph!indicator!within!the!boundaries.! Display!shows!properly!tuned!PA.! TUNE!indicator!is!in!the!middle,!Screen!current! is!higher,!but!still!inside!the!limits.! After!proper!fine!tuning!release!PTT)and!press!STOP!button.!PA!is!now!prepared!for!operation.! View! on! the! properly! tuned! PA.! Analog! wattmeter! shows! forwarded! and! reflected! power.! After! this! procedure! the! amplifier! is! tuned! correctly! and! ready! to! give! 1500! W! output! power! in! all! operation!modes.!At!optimal!tuning!and!full!output!power!a!positive!max.!50mA!current!goes!through! the!second!grid.!! CAUTION) If) the) amplifier) demonstrate) any) malfunctions) during) tuning) or) it) does) not) behave) in) accordance) witch)the)description,)interrupt)the)tuning)procedure)immediately)and)check)the)amplifier!)Be)sure) not) to) do) any) mistakes) in) choosing) bands) or) TUNE/LOAD) values!) Be) sure) that) VSWR) is) not) higher) than)2:1)and)input)power)is)LOW!) After!excluding!possible!human!mistakes!you!will!be!able!to!work!for!long!time!with!this!amplifier!! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!27!!from!35! ! 6. MAINTENANCE% 6.1.'''' ''Indication'of'Fault'Conditions' If!a!fault!condition!appears!during!the!operation!of!the!amplifier,!the!safety!circuits!of!OM2000+!will! react.! There! are! several! warning! or! fault! messages! possible! to! appear! on! the! display,! when! some! of! the! protection! will! be! activated.! The! OM2000+! power! amplifier! can! report! one! of! the! following! messages:! 1! 2! 3! 4! 5! 6! 7! 8! 9! A! B! C! D! E! F! a! a! a! a! a! a! a! a! a! a! a! a! a! a! a! Power!Out!is!too!high! Refl.!power!too!high! Power!In!is!too!high! Low!output!power!(tune)! Plate!current!too!high! Grid!current!is!high! Screen!current!error! N/A! Heating!voltage!error! HARD!FAULT!!! Plate!voltage!error! Grid!voltage!is!low! Screen!voltage!error! SWR!is!too!high! Amplifier!is!too!hot! NOTE! Most!of!safety!circuits!are!preset!for!two!levels!of!exceedances.!First!level!is!a!warning!level.!In!such!a! case! a! warning! message! appears! on! the! display,! fault! LED) will) flash,! but! power! amplifier! will! stay! in! normal)operation.!See!the!table!below!for!warning!and!fault!conditions.! NOTE! When!a!fault!condition!appears!during!the!tuning!or!operation!of!the!amplifier,!the!safety!circuits!will! block)transmitting!and!FAULT)LED)starts)blinking.!The!amplifier!stays!in!OPER!mode.!After!approx.!1! sec! the! control! circuits! will! automatically! switch! the! amplifier! back! to! the! transmitting! mode.! If! problem!persists,!safety!circuit!will!react!again.! CAUTION) If)the)fault)will)repeat)3)times)during)10)seconds,)the)safety)circuits)will)turn)the)amplifier)to)STBY) mode.)FAULT)LED)stays)ON.)To)cancel)fault)status,)press)RESET)shortly.)Power)amplifier)will)stay)in) STBY)mode.) All! the! warning! and! fault! messages! are! stored! in! the! memory.! You! can! display! particularly! warning! messages! and! particularly! error! messages.! See! the! Service! menu! in! the! 5.2.3.,! how! to! select! service! display.!All!of!messages!are!stored!and!displayed!as!a!numbers!or!letters!as!indicated!in!this!chapter!(1! ]!9;!A)]!F).!They!are!stored!one!by!one!to!the!memory.!You!can!see!them!on!the!display!in!three!lines,! on!every!second!display!position!(maximum!10!per!row,!maximum!30!messages!for!warnings!and!30! messages! for! errors).! If! memory! is! full,! every! new! message! will! delete! oldest! one! and! move! rest! of! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!28!!from!35! ! them! one! position! back.! It! means! that! every! time! last! 30! messages! are! visible! on! the! display.! Next! table!shows!limited!values!for!the!safety!circuits!activation.! Fault!code! 1! Parameter! Power!Output!is!too!high! 2! 3! 4! 5! 6! 7! 8! 9! A! Reflected!power!is!too!high! Power!Input!is!too!high! Low!output!power!(tune)! Plate!current!!is!too!high! Grid!current!is!too!high! Screen!current!is!too!high! N/A! Heating!voltage!error! HARD!FAULT!(from!3.1!version)! B! Plate!voltage!error! C! D! Grid!voltage!is!low! Screen!voltage!error! E! F! SWR!is!too!high! Amplifier!is!too!hot! Warning!level! 2200W! 1700W!(50MHz)! 250W! 80W! 1.8A! 10mA! 50mA! +/a!2V!***! Min.!1800V! Max.!3400V! a40V! Min.!250V! Max.!400V! 80!deg.!C!*****! Fault!level! 2300W! 1800!(50MHz)! 300W! 100W! >!3dB!below*! 2.0A! 20mA! 60mA! N/A! +/a!2.5V!! Plate!current!>2.5A! ****! Min.!1500V! Max.!3500V! a30V! Min.!220V! Max.!420V! 3:1! 90!deg.!C!*****! 1. *!!This!fault!indicates!mistuning!of!the!PA.!It!works!for!Input!power!higher!than!10W.!If!output! power! decreases! more! than! 3dB! below! value! corresponding! with! the! applied! Input! power,! fault!message!„Low)output)power“!appears.!You!have!to!tune!the!PA!correctly.! 2. ***! When! the! heating! voltage! exceeds! boundaries! 9V! +/a! 2V,! warning! message! „Heating) voltage) error“! appears.! ! Check! proper! position! of! AC! selector! (page! 25).! Heating! voltage! without!RF!signal!should!be!between!8.5!and!9V.) 3. ****!!„HARD)FAULT”)appears!if!!the!plate!current!exceeds!2.5!A.!In!such!a!situation!hardware! will!immediately!disconnect!high!voltage!from!the!plate.!!Fault!is!signed!with!the!letter!„A“!in! the!memory.!If!error!occurs!frequently,!consult!this!situation!with!the!manufacturer,!please.) 4. *****! ! If! temperature! sensor! inside! the! PA! detects! of! 80! deg.! Celsius,! warning! message! „Amplifier) is) too) hot“! appears! on! the! display.! At! 90! degrees! protection! circuit! will! automatically! block! transmitting! (fault! condition).! You! have! to! decrease! the! power! or! wait! couple! of! minutes! to! be! ready! transmitting! again.! Fault! is! signed! with! the! letter! „F“! in! the! memory.!! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!29!!from!35! ! An!example!shows!situation!when!Input! power!is!too!high.!By!pressing!PTT!safety! circuit!will!react!quickly,!error!message! appears!and!FAULT!LED!starts!blinking.!In!this! case!screen!current!exceeds!limited!value! (60mA).!! After! abt.! 1! sec.! PA! returns! to! TX! mode.! Reduce!Input!power!to!avoid!fault!repeating.! This!is!the!situation,!when!problem!with!high! Input!power!persists.!Safety!circuits!reacted!3! times,! and! then! switched! PA! to! STBY! mode.! Permanent!fault!appears.! To! return! PA! to! the! normal! operation,! decrease! Input! power! first,! then! reset! fault! status!and!go!back!to!the!OPER!mode.! If! resistor! R1! or! fuse! F3! is! damaged,! safety! circuit! stops! starting! of! the! PA! and! fault! message! appears! on! the! display.! It! is! necessary! to! replace! the! damaged! component.! !!! !!!!!!!!!!!!!!Fuse)F3) Resistor)R1) If!there!is!a!fault!condition,!always!try!to!remove!the!cause!first.!If!it!is!not!a!hardware!failure,!it!usually! succeeds.!For!example!high!VSWR,!high!Input!power,!mistune!of!PA,!high!temperature,!etc.! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!30!!from!35! ! In!the!case!of!some!hardware!failure!or!if!your!power!amplifier!is!not!working!properly,!please!contact! the!manufacturer!or!your!dealer.! WARNING!) Never)try)to)change)or)move)any)part)inside)the)amplifier)except)of)tube)or)fuses.))Substitution)of) parts)may)void)intrinsic)safety!)) Manufacturer’s)contacts:)))))))))))))OM)POWER,))s.r.o.)) ))))))))))))))))))))) )))))))))))))))))930)30)Báč)126) )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))SLOVAKIA)) )))))))))))))Email:)om]power@om]power.com) 6.2. Fuse'Replacement' The!user!is!allowed!to!change!mains!fuses!(6.3!x!32mm),!accessible!from!the!rear!panel,!only.!In!the! case! of! fuse! (fuses)! interruption! inside! the! power! amplifier,! exchange) can) be) carried) out) only) by) professionally)qualified)person!!!Internal!fuses!are!located!mainly!on!the!SWITCHaon!board!(next!to! the!HV!transformer).!! ! ! One! special! fuse! is! used! in! the! model! OM2000+.! In! the! case! of! an! accidental! discharges! in! the! tube! this! fuse! saves! HV! supply!circuits.! Fuse) 6.3. Tube'Replacement' In!the!case!of!vacuum!tube!damaging,!contact!the!manufacturer!or!your!dealer!for!ordering!new!one.! You! will! get! instructuions! how! to! change! it.! Exchange) can) be) carried) out) only) ) by) professionally) qualified)person!))After!tube!replacing)automatic)BIAS)adjustment!must!be!done.!Read!Service!menu! (5.2.3.)!and!pictures!on!page!No.!20!for!more!details.! 6.4. Cleaning' To! prevent! damage! to! amplifier! surface! and! plastic! components! do! not! use! aggressive! chemicals! for! cleaning.!Do!not!open!the!amplifier!for!cleaning.!Outer!surface!may!be!safely!accomplished!by!using! piece!of!soft!cotton!cloth!moistured!with!clean!water!or!window!cleaner.! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!31!!from!35! ! 7. APPENDIX% 7.1.' Primary'AC'voltage'selection' Primary!section!of!the!HV!transformer!is!switchable!for!three!values!of!AC!voltage!(220,!230,!!240V).! Factory!settings!is!230VAC.!Before!first!starting!of!the!PA!we!recommend!to!check!the!correct!value! according!to!the!AC!voltage!in!your!network.!Change!the!settings,!if!necessary.! Side)view)on)the)opened)OM2000+) HV)Transformer) AC)Selector) Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!32!!from!35! ! Remove!the!upper!lid!first.!On!the!right!side!of!the!PA,!next!to!the!HV!transformer!there!are!two!PCBs! mounted.!On!the!left!upper!side!of!the!front!(SwitchaON)!board!connector!J6!is!located.! Use! flat! screwdriver! or! finger! and! press! carefully! ! the! white! ! stick! to! release! contact! and! move! upper! end! of! the! white! jumper! to! the!proper!position,!if!necessary.! Jumper must be connected between bottom contact and one of remaining contacts. AC voltage is marked next to every contact. NOTE AC selector range can be changed in the production according to the specific conditions in individual countries. 7.2. Removing'the'HV'Transformer'' For simpler and easier transport of the PA, HV transformer can be removed and taken separately. This distributes the weight of the PA (24 kg) about half and half. Follow next steps to do it. 1. 2. 3. 4. Remove upper lid from the PA. Turn the PA on the left side (transformer is up). Disconnect 3 connectors from the front board and 1 connector from the rear board. Release 4 screws from the bottom side of the PA. Use Philips screwdriver P2. During the release of the last 2 screws hold the transformer by hand. Do not worry about its weight, it will move down just 1 cm and remains on the central rung of the PA. 5. Use both hands to take transformer away from the chassis. Watch!the!released!terminals,!when!moving! the!transformer!! Do! not! damage! transformer! insulation! during! removing!and!transportation.! Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!33!!from!35! ! Weight of the PA was distributed (transformer has 12 kg, rest of the PA has cca 12 kg, too). When refitting the transformer, watch to the correct location of individual sections and wires. NOTE Manufacturer reserves the right to make future changes in the way of connecting the transformer to the board. Allways mark the position of the terminals before disconnecting the transformer. Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!34!!from!35! ! ON AC INPUT K2 K1 Ext. blower Blower T 16A T 16A J8 J15 J9 Cover SW J10 J8 J4 J1 J11 K1 SW ON BOARD J3 AC IN INPUT BOARD K1 SCREEN BOARD FU728f J14 K2 J7 J2 J13 J12 R1 TR 1 F3 J4 J1 K3 HV SUPPLY J3 SW 1a J2 L7 SW 1b K11 K4 K8 K1 K2 CONTROL BOARD DISPLAY SW 1c L8 L11 L4 24V K1 Rele GS K2 K1 METER BOARD J3 K1 ANT SWITCH PWR METER KEY IN KEY OUT A3 A2 A1 OUTPUT Rev.: 7.8.2014 OM 2000+ block diagram K7 K3 K6 56 C2 L6 L10 7.3. Block'Diagram'of'OM2000+'Power'Amplifier' Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!35!!from!35! F 4A
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