Bosch Security Systems | 2006-11 | 9922 141 50781 en
Plena 24 VDC Battery Charger | Installation and User Instructions | Introduction en | 7
2 Product Overview
2.1 Battery Charger
The Plena 24VDC Battery Charger is available for the
complete Plena range, and specifically for the Plena
Voice Alarm System. The battery charger has all the
necessary features for compliance to evacuation
standards: IEC60849, NEN2575 and BS5839/8. It is
also compliant to the standard EN54-4 for power
supplies for alarm systems.
The battery charger is connected directly to a back-up
battery and can support different battery capacities.
The Battery charger has 4 states:
• Bulk mode - Charging states always start with Bulk
mode. A constant current source is used for the
battery charging in this state.
• Full mode - A lesser current that completes the
battery charge.
• Float mode - A constant trickle charge that does not
cause damage to the battery.
• Equalization - Once a month the charger charges the
battery with the 3 modes to keep the battery in good
condition.
2.2 Application types
Typically, the battery charger is used in a Plena Voice
Alarm System.
2.3 Plena Voice Alarm System
The Battery Charger is part of the Plena Voice Alarm
system, which is an emergency sound system. The
system complies to IEC60849 and all information about
the installer, end users, and the general system
requirements, please refer to the Plena Voice Alarm
System Installation and User Instruction manual.
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