The power supply manager is designed for distribution of DC power supply from power supply units (PSU) and a back-up battery.
The unit controls battery charging and distributes power supply to all equipment at max 60 A. When the system uses battery back-up, the power supplied is max. 3.2 kW. The unit complies with the EN 54-4 VES standards and also EN 12101-10 Smoke and Heat Control System standards.
As a main source of energy distribution, the manager uses external module ABT-PS48800: 800 W for 48 V. PSM48 power supply manager uses an internal power converter for 24 V equipment. As a source of stand-by power supply, it uses the battery bank of the capacity of up to 200 Ah.
The power supply manager co-operates with the 4x12 V / 2x12 V VRLA battery bank. It maintains the bank in charged condition, ensures temperature compensation of charging parameters and monitors serial resistance of the battery and its wiring as specified in EN 54-4/A2.
The power supply manager co-operates with up to 4 modules of ABT-PS4880 power supply units. The manager ensures safe connection for the purpose of parallel operations and monitors the output parameters of each power supply unit.