6.11.4 Beacon and Sounder Extension
A beacon and sounder extends any second stage temperature alarm or fatal
error alarm. Fixing the reason for the alarm condition automatically stops the
beacon / sounder.
A key switch is also provided to mute the sounder at any time.
NOTE
No reminder is given to show that the sounder is muted when the system is
healthy.
Reoccurrence of subsequent alarm conditions will cause the beacon to light
up but will not create an audible alarm.
6.12 Card Indicators
Zone control cards also have their own LED indicators that give a state-of-
health display and which can be seen through the cabinet windows.
SCAN
– This LED flashes briefly as the controller scans each card in
sequence.
FAULT
– Should normally be unlit. It lights up to show that one zone on
the card has detected an error. The nature of that error is displayed in the
particular zone on the console.
A list of fault and error messages can be found in “Table 8-1 Fault and
Warning Messages” on page 8-2.
6.13 Training and Demonstration Mode
The controller has a Demo mode to use for training or demonstration
purposes.
The controller will not communicate with the associated controller cabinet
when in Demo mode. It is recommended that the system is idle before using
the Demo mode function.
6.13.1 About Demo Mode
Demo mode feeds every zone within the selected tool with a stream of pre-
recorded temperature data. The console appears to be working, and it gives
a real trace when the Graph page is selected.
6-15
OPERATION
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M1 Plus Controller User Manual
