Maintenance; Indication O F F Ault C Onditions - OM POWER OM2000+ Manual

6. MAINTENANCE
6.1. I ndication o f F ault C onditions
If a f ault c ondition a ppears d uring t he o peration o f t he a mplifier, t he s afety c ircuits o f O M2000+ w ill
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 -­‐ Power O ut i s t oo h igh
2 -­‐ Refl. p ower t oo h igh
3 -­‐ Power I n i s t oo h igh
4 -­‐ Low o utput p ower ( tune)
5 -­‐ Plate c urrent t oo h igh
6 -­‐ Grid c urrent i s h igh
7 -­‐ Screen c urrent e rror
8 -­‐ N/A
9 -­‐ Heating v oltage e rror
A -­‐ HARD F AULT
B -­‐ Plate v oltage e rror
C -­‐ Grid v oltage i s l ow
D -­‐ Screen v oltage e rror
E -­‐ SWR i s t oo h igh
F -­‐ Amplifier i s t oo h ot
Most o f s afety c ircuits a re p reset f or t wo l evels o f e xceedances. F irst l evel i s a w arning l evel. I n s uch a
case a warning message appears on the display, fault LED will flash, but power amplifier will stay in
normal o peration. S ee t he t able b elow f or w arning a nd f ault c onditions.
When a f ault c ondition a ppears d uring t he t uning o r o peration o f t he a mplifier, t he s afety c ircuits w ill
block t ransmitting a nd F AULT L ED s tarts b linking. T he a mplifier s tays i n O PER m ode. A fter a pprox. 1
sec the control circuits will automatically switch the amplifier back to the transmitting mode. If
problem p ersists, s afety c ircuit w ill r eact a gain.
If the fault will repeat 3 times during 10 seconds, the safety circuits will turn the amplifier to STBY
mode. F AULT L ED s tays O N. T o c ancel f ault s tatus, p ress R ESET s hortly. P ower a mplifier w ill s tay i n
STBY m ode.
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 n umbers 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
NOTE
NOTE
CAUTION
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