Maintenance; Indication!Of!Fault!Conditions - OM POWER OM2000+ User Manual

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6.

MAINTENANCE%

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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!
the! protection! will! be! activated.! The! OM2000+! power! amplifier! can! report! one! of! the! following!
messages:!
1! a! Power!Out!is!too!high!
2! a! Refl.!power!too!high!
3! a! Power!In!is!too!high!
4! a! Low!output!power!(tune)!
5! a! Plate!current!too!high!
6! a! Grid!current!is!high!
7! a! Screen!current!error!
8! a! N/A!
9! a! Heating!voltage!error!
A! a! HARD!FAULT!!!
B! a! Plate!voltage!error!
C! a! Grid!voltage!is!low!
D! a! Screen!voltage!error!
E! a! SWR!is!too!high!
F! a! Amplifier!is!too!hot!
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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.!
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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.!
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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.)
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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!
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CAUTION)
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