29
9 Electrical installation
LED
green
LED
orange
LED
red
THM Relay Condition Possible cause Remedy
ON Flashes
3 x
OFF OFF OFF Fault in the
manual release
button loop
System with line surveil-
lance:
Missing termination mod-
ule AM 142 or wrong DIP
switch setting or short-
circuit of the connection
line of the external HAT.
System with line
surveillance:
Connect the termina-
tion module AM 142
or set the DIP switches
according to the circuit
configuration or check
and reconnect the lines.
ON Flashes
4 x
OFF OFF OFF Excess tempera-
ture in FSZ Basis
Ambient temperature
too high
Reduce the ambient
temperature
ON Flashes
5 x
OFF OFF OFF Fault in the
loop of the
electromagnetic
door retainer
Short-circuit of the con-
nection line of the THM
Check and reconnect
the lines
ON Flashes
6 x *
Flashes
6 x *
OFF OFF Fault
Keypad
The keypad is improperly
connected
Pull off the plug from the
keypad and reconnect it
ON Flashes
9 x
OFF OFF OFF Fault
Output current
Number of connected
consumers too high
Recalculate the total
current of the consumers
and re-erect the system
ON Flashes
10 x
OFF OFF OFF Fault at FSZ
Basis
Short-circuit of the 24-V
supply
Check the wiring
* Whether only one LED or both LEDs are flashing, depends on how the keypad is improperly connected.
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