Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 11 Page 164 of 265
If a stage not assigned to any button is active, none of the indicators will be
illuminated. If this is the case when manual mode is first selected, the stage will
continue until a new stage is selected.
18.3 Manual Control Parallel Stage Streaming Facilities
For parallel Stage Streams, each stage button on the Manual Panel is configured to
call a combination of stages, one from each stream. The associated indicator only
illuminates when all of the streams reside in the configured stages.
Manual mode can be disabled on certain streams (using special conditioning) and
those streams then run a lower priority mode, e.g. VA mode. Some streams can also
be running a higher priority mode such as part-time or hurry call, while others run
manual mode.
The Manual Panel only affects (and shows the state of) those streams actually
running manual mode. If no stream is running manual mode, the indicator by the
manual mode button on the Manual Panel will flash.
The Awaiting Command lamp will only illuminate when all phase minimums on all
streams running in Manual Mode have expired and consequently allow further
moves to be made using the Manual Buttons. A change is accepted as valid even if
only one of the streams changes while the other streams are already in their
required stages.
18.4 Manual Mode Enable/Disable Facility
Manual mode may be configured to be disabled until the handset command MND is
used or until a handset is connected.
If manual mode is disabled by the MND handset command, using the handset
command MND=0 will enable manual mode.
If manual mode is selected on the Manual Panel but manual mode is not running on
any of the streams for any reason (including the above), the indicator by the
MANUAL button will flash. In this case the controller runs the highest priority mode
requested as though the NORMAL button had been pressed.