Fault messages on the Person Machine Interface
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24.3 Fault messages on the Person Machine Interface
Figure 9: Fault messages on the Person Machine Interface
The table below shows the causes and measures should a fault be displayed.
LED LED flashes Cause What must be done
1 FAULT The ↑ 'Site' has a fault
● Check whether another fault LED is
flashing, if not:
– Check the display
– Check whether the 'Fault' control
input is activated
5 Fault System Failure of the main CPU ● Visual check of the cable connections
● Check whether the red LED H37 on the
operating unit FCM72xx is on:
– Exchange PMI & mainboard
'Fault' of a component ● Restart 'Station'
– When the 'Fault' is still indicated:
Exchange the module
Communication fault of a
networked 'Station'
● Check the transmission line
● Check the faulty 'Station'
8
Fault / Off Remote
alarm
Remote transmission has a
'Fault'
● Check remote transmission
10
Fault / Off Alarm
device
'Fault' affecting acoustic
control lines
● Check the 'Line' for open circuit/short-
circuit or end-of-line element (EOL) is
missing or defective
12
Fault / Off Control
function
'Fault' affecting fire control
lines
● Check the 'Line' for open line/short-circuit
● Check the function of the external control
devices
● Check the function, any existing
feedback switch
12
10
8
5
1
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