EIB Alarm Central Unit, surface-
mounted
75730010
Technical
Documentation
© Gebr.Berker 2005
Version: 18.08.2005
Page: 4 / 81
(Subject to prior change)
75730010.doc
Part 9
Bus and mains voltages:
The response to bus voltage failure can be set with jumper J1 while the
system is in its armed state (refer to "Response to Bus Failure"). In any
case, an alarm transmission device fault signal will be immediately
released. The mains failure will be written into the event log.
When the system is in its disarmed state, only a fault signal (fault signal
to the ATD) will be released after 60 seconds. In addition, the mains
voltage failure (> 30 seconds) will raise an alarm system fault signal if
the bus voltage has reappeared at this time. The mains failure will be
written into the event log.
In the event of a mains voltage failure, the emergency battery will feed
the alarm system including all alarm indicators up to 12 hours.
Response to recovery
Bus voltage only:
Depending on the software
(refer to "11.2 Bus voltage recovery",
page 58)
.
The "bus voltage recovery" parameter determines whether the state of
the alarm central unit before the bus voltage failure ("last state") should
be restored, or whether all arming areas should be disarmed ("all AAs
disarmed").
After each bus voltage recovery, all detectors will be checked for their
presence. Any missing detectors of armed areas will, in this case, lead
to alarm raising. Missing detectors of disarmed areas will release an
alarm central unit fault signal (through the "alarm central unit fault" ob-
ject).
Bus voltage recovery will be stored in the event log.
Mains voltage only:
The time at which the mains voltage recovers determines the response
(refer to "Response to Mains Voltage Failure").
Bus and mains voltages:
Depending on the software
(refer to "11.2 Bus voltage recovery",
page 58)
.
If the bus and mains voltages recover at the same time there will be no
response to the mains voltage failure.
If there is no mains voltage upon bus voltage recovery an alarm central
unit fault signal (mains failure > 30 seconds) will be released.
Bus voltage recovery will be stored in the event log.
Wired detector input:
Number:
1
Signal voltage:
approx. +4.7 VDC
(in open state/"1" signal)
0 V
(when contact is closed/"0" signal)
Signal current:
500 µA typ.
(when contact is closed)
Detector resistance:
max. 1 kOhm max. for "0" signal recognition
Signal period:
100 ms min.
Input line length:
200 m max. for a min. wire diameter of 0.8 mm
Connection:
Screw terminals:
1.5 mm² max., single-wire
1.0 mm² max., fiinely stranded without ferrule
0.75 mm² max., finely stranded with ferrule
Sabotage input:
Number:
1
Signal voltage:
approx. +4.7 VDC
(in open state)
0 V
(for a sabotage resistance of 0 Ohms)
approx. +2.8 VDC
(for a sabotage resistance of 12 kOhms)
approx. +3.8 VDC
(for a sabotage resistance of 47 kOhms)
Signal current:
approx. 500 µA
(for a sabotage resistance of 0 Ohms)
approx. 200 µA
(for a sabotage resistance of 12 kOhms)
approx. 80 µA
(for a sabotage resistance of 47 kOhms)
Signal period:
100 ms min.
Input line length:
600 m max. for a min. wire diameter of 0.8 mm
Connection:
Screw terminals:
1.5 mm² max., single-wire
1.0 mm² max., finely stranded without ferrule
0.75 mm² max., finely stranded with ferrule
