Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 11 Page 131 of 265
13.1.1 Start-Up into Part-Time Mode
If the first step of the start-up sequence matches the part-time state (e.g. both
request blackout or the same flashing pattern), the controller will immediately enter
the part-time state on power-up if it is requested (by the current time of day for
example).
However, if the first step of the start-up sequence does not match the part-time
state, the controller is forced to complete the start-up sequence and then enter part-
time mode as normal, see section 14.
13.2 Start-Up Parallel Stage Streaming Facilities
Start-up mode works on a stream basis, i.e. a stream can be restarted without
affecting the other streams. Thus start-up mode can be active on any or all of the
streams. The start-up stage for each stream is configurable.
Individual streams can be extinguished by part-time mode or by the red lamp
monitor for example. When the stream is required to come back on (because the
timetable indicates that part-time mode is no longer required or the red lamp fault
has been cleared for example), the stream will perform its start-up sequence and run
start-up mode. Meanwhile the other streams will each continue to run their highest
priority modes unaffected by the stream performing its start-up sequence.
When the stream completes its start-up, it will run the highest priority mode required
as normal.