Siemens EH.85M.21E Manual de usuario descargar pdf (Pagina 9)

ST800 Guidance Notes

Issue 1 667/HB/27000/100 Page 9

Checks that each lamp supply relay can switch off the lamp supply independantly

SSR Fault

Relay A Fault

Relay B Fault

Failure of any of these tests implies that the relay is not switching off, i.e. that

it is either welded closed or the control signals from the main processor card

are stuck active.

Checks that the dimming relay is functioning

Dimming Fault

A fault is only logged on the dimming relay if the dim lamp supply is more

than 75% of the normal lamp supply, i.e. that the dimming relay seems to

have no effect on the lamp supply. If dimming is not required, then no link

should be fitted between the dim input and the dim output on the back of the

distribution unit. If dimming is configured as not present, i.e. KDP is set to

zero, then the controller will simply never attempt to switch to dim.

Note that this test does not fail if there is no dim lamp supply, e.g. if no

dimming transformer is fitted, since self test may be performed on the just the

controller rack. Therefore, the dim voltage should be checked manually, e.g.

Dim L/Supply=160V

Checks all of the triacs in turn by applying a very short pulse to each phase’s colour

A/Red:Extra Sigs On

R-00000001+00000001

A-00000001+00000001

G-00000001+00000001

A fault will be logged if extra signals are detected as on when one particular

aspect is pulsed. This would normally imply a short-circuit in the street cabling

or a open neutral connection.

No Voltages On...

R-00000F00+00000F00

A-00000F00+00000F00

G-00000F00+00000F00

A fault will also be logged if no voltages were detected, e.g. when one of the

fuses on one of the lamp switch cards has blown.

At the end of the test, the self test switches off the lamp supply and displays a

multicoloured scrolling pattern on the lamp switch card LED's to show that all the

tests have passed successfully.

It also illuminates a series of amber LED's to identify which cards on the extended

system bus have been detected. A full list is displayed on the handset.

After a few seconds, self test will repeat the tests on these last two pages allowing

the controller to be soak tested.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

Sin comentarios

Siemens EH.85M.21E Manual de usuario Pagina 9