Fault Handling; Introduction; Fault Indicators; Line Fault Indicators - Bosch Plena Installation And User Instruction Manual

Plena Voice Alarm System | Installation and User Instructions | Fault Handling
7

Fault Handling

7. 1

Introduction

In accordance with IEC60849, the international
evacuation and emergency standard, a number of
functions of a Plena voice alarm system, are supervised.
If supervision is enabled (see section 5.3.3) and a
supervised function fails, the voice alarm controller
enters the fault state. When entering the fault state, the
following events are simultaneously initiated:
• The controller's integrated beeper starts.
• The fault contact is activated (see also section 4.12.2).
• A LED on the front of the controller, indicating the
fault, is turned ON.
To troubleshoot a fault, see section 7.3.
7.2

Fault indicators

Two categories of faults are indicated:
• Line faults (see section 7.2.1).
• System faults (see section 7.2.2).
7.2.1

Line fault indicators

The line fault indicators provide information about
failing loudspeaker lines. A controller and a router, each
have their own line fault indicators. Each loudspeaker
line is supervised on short-circuits, line impedance and
short-to-grounds (see section 5.3.3.5). If a line fault
indicator is turned ON, check the wiring of the
indicated loudspeaker line and try to solve the fault. If it
not possible to determine the fault, contact your dealer.
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 7. 1 : Line fault indicators
7.2.2

System fault indicators

The system fault indicators provide information about
failing system functions that are supervised (see table
7.1). A controller and a router, each have their own
system fault indicators. However, some system faults are
not applicable to a router, and therefore do not have an
associated fault indicator on the router. If a system fault
indicator is turned ON, consult table 7.1 for a suitable
Bosch Security Systems | 2004-06 | 9922 141 10371en
Disabled
A B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
remedy. If a system fault is persistent, contact your
dealer.
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 7.2: System fault indicators
7.2.3

Supervision disabled

If supervision is disabled (see section 4.5), the fault
indicators do not function and the Disabled indicator is
turned ON (see figure 7.3).
Fault Indicators
0 dB
Processor reset
Network
-6dB
Call/EMG
-20dB
Music/Spare
Ground short
Input
figure 7.3: Disabled indicator
7.2.4

Indicator test

Press the Indicator test button to test the availability of all
indicator LEDs.
Alert message
Alarm message
Indicator test
EMG mic
figure 7.4: Indicator test button
en | 59
Disabled
A B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
Disabled
A B
Mains Zone1
Battery
Zone2
Message
Zone3
EMG mic Zone4
RCP Zone5
Router Zone6
All call
+
-
+
-