Troubleshooting - Dialling Unit - behnke AT6 Anleitung

Behnke AT6 manual

trouBleShooting - diAlling unit

17. TROUBLESHOOTING - DIALLING UNIT
Issue
When switched on, the device
directly sends an autonomous
emergency call.
The alarm starts sounding
immediately after start-up.
No sound transmission from
the cabin to the receiver.
Noise while establishing the
connection.
The alarm starts sounding
immediately after start-up.
90
Possible cause(s)
Key type swapped (normally
closed - normally open)
Emergency call button jammed
Relay 2 is set to NC
Input 2 is set to NO by default
The receiver does not use
the protocol used, or the set
protocol is not expected by the
receiver.
If the dialling unit is mounted
on the cabin roof, the fault
may be caused by induction in
the telephone line.
Emergency call button jammed
Relay 2 is set to NC
Input 2 is set to NO by default
Solution
Disconnect the telephone line.
Adjust the type of emergency
call button via parameter *89*
of the button used.
Check button, replace if
necessary.
Set bridge between D1 and D3,
set to NO. Then remove the
bridge again and restart the
dialling unit.
Use the machine room
telephone or (if not available)
connect an analogue test tele-
phone to the dialling unit to
make a call to the cabin (press
"1"). If the transmission works,
it is necessary to check if the
selected protocol (parameters
*21* to *24*) and the receiver
are suitable for each other.
According to the regulations
of the telephone companies,
the telephone line must be
installed in a separate line.
Perform a noise test (see
"Noise test").
Set bridge between D1 and D3,
set to NO. Then remove the
bridge again and restart the
dialling unit.