Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 11 Page 166 of 265
(b) Stay in one stage for a fixed period defined in the configuration and
then automatically move to another pre-defined stage. The controller is
then ready to respond to a further push button operation.
The user may change the operation between (a) and (b) as required, by means of
the handset.
When the ‘all-red’ push button is operated, the controller will, subject to any safety
periods, change to the All Red stage. The controller will stay in the All Red stage
until the ‘step-on’ push button is operated when the controller will move to the next
stage in the cycle following the stage prior to the call to the All Red stage.
Alternatively, if the manual mode is switched off the controller moves to the stage
required by the new mode.
Manual Step-On mode can be configured to be switched off when the ‘enable’
button is pressed again or the Manual Panel door is closed.
19.3 Manual Step-On Mode Parallel Stage Streaming Facilities
Each step is allocated a combination of stages, one from each stream, which will run
simultaneously.
Note that this means the controller may need to make a few stage changes to
become synchronised with the Manual Step-On facility when it is initially enabled.