The EN54 Series is a new generation / smart Power Supply that is designed to provide battery backed-up power in the event of either the PSU or the battery is disconnected or short-circuited.
When the AC supply fails, the battery will automatically be connected and will provide power until the ac supply is restored… If the battery has reached its disconnect voltage, it will automatically be disconnected to prevent deep discharge damage.
Designed for powering critical loads with battery back-up, in a wide range of Industrial applications and in particular Security installations and Access Control, with separate Load and Battery Charging circuits.
A wide range of Signals, Led’s and Alarms, all aimed at providing the optimum solution for powering critical DC Loads.
An isolated Common Fault relay has been provided which will operate if any fault is found (This is a fail-safe signal so will signal a fault even if no power sources are on/connected.
The PSU provides a current limited battery charger with thermal compensation that will charge the battery to 80% of capacity in 20 hours and keep the battery at its optimum standby voltage
The PSU has been designed to recognise and signal the following four faults:
|Input voltage||200 – 230 Vac +/-10%|
|Temperature Range||0 – 50ºC ambient (Convection cooled, cased)|
|Input fuse||T2H 250V TR5|
|Input Current||1Arms (180Vacin, full load)|
|Hold-up Time||30mS (230Vacin, full load, no battery connected)|
|Power Factor||0.45 (230Vacin, Full load)|
|No Load Power||1.5W (230Vacin)|
|Start-up||Less than 1.5 seconds|
|Output Voltage||13.8V (factory set for operation with thermistor)|
|Power limit||115% +/-10%|
|80-85% Typ.@ 230Vacin, Full load|
|OVP||105-125% (latching and non dissipative) recycle input to restart|
|Short Circuit Protection||Hiccup mode|
|Signals||Mains Fail, Battery O/C, Charger Loss, Battery Low- LED’s & open collector – 100mA sink, Status LED Green = Flashing = OK
Common Fault (Volt free) relay
2x Customer options – open collector – 30mA sink HiZ indication =0.4I
Battery Powerfail signal = 100mS
|Current limit||Primary side power limit|
|Thermal protection||Primary side thermal protection (non-latching)|
|Load regulation||+/- 0.75%|
|Line regulation||+/- 0.5%|
|Noise & ripple||0.5% (230Vacin, Full load, BW = DC – 10MHz)|
|Charger||Current limited @ 1A|
|Temp compensation||Connector provided for user to add 100KΩ thermistor (β=4400) Suitable for standby use|
|Deep discharge protection||10V +/-0.125V|