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| Alarm
Display Unit LLB 10 AB |
OPERATION
When a sensor contact closes, the corresponding
indicator LED is lit on the panel.
After the pre-set time, the output contact is activated and the
ALARM indicator is illuminated. The signal is acknowledged by pressing
the red ”ÅTERSTÄLLN.” button, which causes
the output contacts to reset and extinguishes the ALARM LED.
When the fault has been corrected and the sensor has returned to
its normal state, the fault indicator LED on the panel goes out.
If the sensor contact returns to normal before being acknowledged,
then the unit returns to its normal status.
LLB-10 can be fitted with a legend for each alarm channel, or with
a common legend for all 5 channels.
INSTALLATION
LLB-10 is designed for panel mounting.
The unit is available in both master and slave versions and the
system can, therefore, be built up with one master and up to 9 slave
units, giving a total of 100 alarm channels.
The test and accept facilities are provided only on the master unit,
which carries out these function on behalf of the slave units.
The unit is connected through two easily accessible screw terminal
blocks, each fitted with an additional terminal strip (plug and
socket).
One of the terminal blocks is for connection of sensor leads and
the second, for the other connections.
Connection is simple and the terminal arrangement allows the unit
to be separated quickly, without disturbing the cable connections.
SECURITY
LLB-10 is designed for severe mechanical and electrical
environmental conditions.
It is provided with protection against polarity reversal, accidental
connection of voltage, interruptions etc.
The unit is designed to indicate voltage failures; each group relay
is designed to indicate voltage failures with each group relay being
normally activated.
In the alarm state the relay is deactivated and a signal can be
given with, for example, a horn. The same thing happens when the
supply voltage is interrupted.
Its limited size and depth allows it to be easily mounted in panels,
walls and similar spaces.
Normal function testing is carried out by pressing the test button,
which simulates faults on the alarm channels in the system.
The unit is in accordance with CE-standards: EN 50 082-2; IEC 801-2:1991;
ENV 50 140; ENV 50 141; IEC 801-4.
SPECIFICATIONS
| Supply voltage: |
24V or 48V AC/DC ± 20% |
| Supply current: |
Normal condition 0.1A, Alarm condition
0.2A |
| Time delay: |
0,5 - 20 sec. adjustable common
line for each alarm group |
| Output contacts: |
Change-over contact rated (A and
B alarms)
max. 100V 100 VA resistance load. |
| Front: |
Dull black aluminium |
| Main dimensions: |
DIN 144x144x35 mm |
| Panel recess: |
125x125 mm |
| Legends: |
Space for individual channel legends
or common 5 channel legends |
| Indicators: |
Red LED for unacknowledged alarm |
| Ordering Instructions: |
12006 LLB 10 AB |
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