Distribute The Alarm Message; Fault State; Introduction; Acknowledge The Fault State - Bosch Plena LBB1990/00 System Manual

Plena Voice Alarm System | Basic System Manual | Operation
5.6.7

Distribute the alarm message

Distributing the default alarm message is similar to
distributing the default alert message (see section 5.6.6).
Push the Alarm message button instead of the Alert
message button (see figure 5.19).
Alert message
Alarm message
EMG mic
figure 5. 1 9: Alarm message button
5.7

Fault state

5.7.1

Introduction

If a supervised function fails, the voice alarm controller
enters the fault state and:
• Starts a beeper. The beeper is switched off when the
fault is acknowledged (see section 5.7.2).
• Closes the Fault Status NO output contact. This
status output contact is opened again when the fault
is reset (see section 5.7.3).
• Lights a fault indicator on the front panel that
indicates the source of the fault (see section 5.7.4).
The indicator is switched off when the fault is reset
(see section 5.7.3).
5.7.2

Acknowledge the fault state

The beeper can be switched off by acknowledging the
fault state with the Fault Ack button (see figure 5.20).
Fault EMG
Ack
Reset
figure 5.20: Fault Ack button
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Indicator test
Zone select
Zone1 Zone2
The following buttons also acknowledge the fault state
and stop the beeper:
• Alert button
• Alarm button
• PTT button of the emergency microphone
5.7.3

Reset the fault state

Reset the fault state by pushing the Fault Reset button
(see figure 5.21). In order to reset the fault state, it first
must be acknowledged (see section 5.7.2). When the
Fault Reset button is pushed, the fault indicators are
switched off and the status of the system is checked.
• If the fault is not resolved, the fault indicators are
switched on again. The beeper remains off. It is only
switched on if a new fault occurs or if the resolved
fault occurs again.
• If the fault is resolved, the fault indicators remain off.
Fault EMG
Ack
Reset
figure 5.21: Fault Reset button
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Zone select
Zone1 Zone2