Bosch Plena Voice Alarm System - 6.2.1 Processor reset; 6.2.2 Network; 6.2.3 Power amplifiers; 6.2.4 Ground short

68 en | Configuration Plena Voice Alarm System
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual Bosch Security Systems B.V.
If the Supervision switch is in the ON position, an indicator is lit when a supervised function
fails (see section 7.5 ). Use the configuration software to switch supervised functions on and
off.
6.2.1 Processor reset
Watchdog
If supervision is enabled (see section 6.2 ), the processor of the voice alarm controller is
supervised by a watchdog. If the watchdog triggers, the Processor reset indicator on the front
panel of the voice alarm controller is lit. Then, the program memory is checked and the
processor resumes operation within 10 seconds. The indicator remains on until the fault is
acknowledged and reset.
New firmware
A processor reset sometimes happens after new firmware is installed. make sure the Service
DIP switches are put back to the correct position. The correct positions are:
– SEL0 and SEL1 to ON.
– Enable Firmware Download to OFF.
6.2.2 Network
If supervision is enabled and network supervision is switched on (see section 6.2 ), the
connections from the voice alarm controller to the voice alarm routers and remote controls
are supervised. When any voice alarm router or remote control is missing during a network
check, a network error is reported.
6.2.3 Power amplifiers
If supervision is enabled and call power amplifier supervision is switched on (see section
6.2 ), the call power amplifiers in the system are supervised. In the configuration software,
mark the checkbox Call/EMG to enable this function.
If supervision is enabled and BGM/Spare power amplifier supervision is switched on (see
section 6.2 ), the BGM and spare power amplifiers in the system are supervised. In the
configuration software, mark the checkbox Spare to enable this function.
6.2.4 Ground short
If supervision is enabled and ground short supervision is switched on (see section 6.2 ), the
system can continuously monitor loudspeaker lines in the system for short-to-ground
situations. For each loudspeaker line, short-to-ground supervision can be switched on and off
with the configuration software.
If a leakage current > 30 + 15 mA is detected in a line, the line is considered faulty.
NOTICE!
See the Configuration Software Manual (9922 141 1038x) for more information about the
configuration software.
NOTICE!
See the Configuration Software Manual (9922 141 1038x) for more information about the
configuration software.