Siemens EH.85M.21E Manual de usuario descargar pdf (Pagina 7)

ST800 Guidance Notes

Issue 1 667/HB/27000/100 Page 7

Checks that the lamp supply and voltage monitors are detecting no mains

L/Supply Off=240V

L/Supply Stuck On

If a lamp supply is being detected, then this implies that the lamp supply

relays are all switched on (very unlikely) or the lamp supply monitoring

transformer (in the power distribution unit) or its connection to the first lamp

switch card is incorrect.

V/Mons Off...Failed

R-00000000+00000400

A-00000000+00000000

G-00000400+00000000

If any of the voltage monitors appear to be detecting mains, even though the

lamp supply and all the triacs are switched off, then this implies a problem

with the hardware on one or more of the lamp switch cards.

Initializes the phase bus processor

P/Bus Init...

LS/Card Fault (Lat)

Bad L/S Cards

Once initialized, the phase bus processor performs more thorough checks on

the lamp switch cards and may detect faults. These tests check the data lines

and board select lines using test latches on each card ‘(Lat)’, the address

lines to each card ‘(Adr)’ and the ADC test voltages ‘(ADC)’. If more than one

test fails, then ‘Bad L/S Cards’ is displayed instead.

Checks the monitor validation signal

M/V Test.....Failed

Mon Val Failed

The monitor validation signal is generated by the main processor and travels

down the phase bus cables to each of the lamp switch cards, so a failure is

probably due to a faulty lamp switch card.

At this point, the self test has successfully checked-out the logic side of all the lamp

switch cards that it has found. It then displays a scrolling diagonal line on the amber

LED’s on these lamp switch cards to prove that it can address all the boards

correctly and to show that the first part of the self-test is complete.

This pattern remains until the operator presses the level 3 button to confirm that the

pattern is scrolling correctly on all the cards fitted and that the self test may switch

on the lamp supply and continue its tests.

Caution

It is essential that the correct number of lamp switch

cards have been detected at this point as following this,

the self test will start applying mains to the signals

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

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