One of the most important features of any controls solution is the integration of safety systems, specifically emergency lighting. Never has this been more important than the introduction of the standard BS EN50172:2004/BS 5266-8:2004 which describe the automatic test systems for battery powered emergency escape lighting.
BuildingSight is capable of automating weeklyregularfunction tests and yearly 3-hour duration tests on the emergency lighting. Diagnostic information includes reports on the status of the inverters during test, duration of the test, battery, charger and lamp status. If any of these fields fall outside the parameters defined by the standard a report can be generated and issued to the appropriate individual or department.
The plug and play multi master DALI lighting control module (LCM) allows quick and easy connectivity of all DALI luminaires with power and data. Each LCM can be connected with standard CAT 5e cables and connectors to create an EtherCAT network which allows fast and reliable energy saving lighting control system.
Central battery testing
Using Beckhoff components throughout, the CBU interface panel connects to the LCS using standard Ethernet TCP/IP connectivity. Dual redundancy of Ethernet ports on the Beckhoff PLC ensures high availability in properly configured networks’ architecture. A Modbus-RTU over RS485 terminal allows the CBU interface panel to monitor and report against any information made available in the Modbus register from the device. This typically includes, but is not limited to:
Relay output modules are used to provide volt free contact switching between normal operation and test mode. Contacts are configured to ensure fail safe into normal operation mode. A digital Input module is used to pick up volt free contact signals from the CBU. These are typically used to indicate system critical status during test, i.e. AC mains failure, low battery voltage, inverter failure etc.
Integrating the CBU into the Lighting Control System: simplified, precise control.
The BuildingSight Emergency Light Testing Module integrates the CBU to the LCS, ensuring seamless test scheduling, control, monitoring and reporting of the CBU and emergency luminaires. The module supports multiple CBUs in a single campus.
When a CBU test is initiated, all emergency luminaires connected to that CBU can be instructed to a configurable emergency level for the duration of the test, and then monitored for health throughout. At the end of the test period, the system restores the CBU to normal operation, and emergency luminaire control is returned to the previous state, as required from their particular lighting control zones.
If any critical faults were to occur during the testing procedure, the system automatically returns the CBU to normal operation, including this detail in the end-of-test report. The BuildingSightsystem automatically produces a report detailing the battery status at beginning and end of the test, as well as a log of the emergency luminaire health – detailing any failures and their reported cause.