Elko EP PS3-100/iNELS Guia De Inicio Rapido página 3

PS3-100/iNELS
Power supply
EN
Characteristics
- PS3100/iNELS is a stabilized switching power supply, with the total power of 100 W.
- Used to supply central units and external master within intelligent electro-installation iNELS.
- Through BUS separators from the supply voltage BPS3-01M and BPS3-02M, it supplies supplies
BUS lines from which iNELS peripheral units are also powered.
- Used in the instrumentation fi eld.
- Fixed output voltage DC 27.6 V and DC 12.2 V, galvanically isolated from the mains.
- Power source of 27 V and 12 V have a common ground terminal GND.
- Electronic short circuit protection, high-capacity and thermal overload, over voltage.
- UPS functions - backup of output 24 V and 12 V on connected batteries.
- Recharging the batteries from 27.6 V source.
- Protection battery backup fuse - protection against short circuit and reverse polarity battery.
- Continuously adjustable maximum battery charging current.
- Indication of operating and fault conditions 6 LED diodes on the front panel of the power supply.
- 2 STATUS outputs with open collector for reporting operational status of the source.
- Source supplies power to the priority system iNELS, the remaining power is used for rechargeable
batteries.
- When the battery is fully discharged, the battery is automatically disconnected from the load.
- PS3-100/iNELS in 6-MODULE version is designed for mounting into a switchboard, on DIN rail
EN60715.
General instrucions
SUPPLYING THE SYSTEM
To supply system units we recomend to use power supply PS3-100/iNELS. Number of power
supllies is given by a sum of rated currents connected to units plus a suffi cient reserve. In case
there is security system included, we recomend to use this baced-up power supply in a cove with
protective contact
Description of device function
- The device consists of several functional blocks.
- The basic part is 100 W power supply with 2 output voltage levels.
- Voltage of 27.6 V is used to supply the system iNELS and to recharge the batteries.
- Voltage of 12.2 V is for power as intrusion detectors (ESAS) or EFAS.
- Both voltages are available without interruption during power AC power supply (UPS func-
tion) - assuming they are connected to a backup battery.
- Other parts of the source circuits are battery backup and recharge, which provide switching mode
connection, charging and disconnecting the battery.
- When in the backup mode, the battery is completely discharged, the circuit is immediately
switched off to avoid deep discharge. The maximum discharge current is also guarded -
when exceeded, the batteries are again disconnected.
- If the switched source is working (oscillating), and its output voltage are greater than 26.9 V,
the backup batters are charged by the current, and the maximum value is set by trimmer on
the panel source.
- When charging the yellow LED CHARGE illuminates. The source fi rst feeds the iNELS system,
and the remaining capacity of up to 100 W only recharges the battery.
- If the output is high, this disconnects the charge (the yellow LED CHARGE switches off ).
- Upon further increasing, the load further decreases the voltage source and the load current
also fl ows from the battery (power supply and battery power to the load together).
- If the source is disconnected from the AC network (does not oscillate), and you connect bat-
teries now, the batters remain disconnected and power outputs are without power. To acti-
vate, the source must be connected to the power supply.
- The last part of the unit are signaling circuits and status outputs.
- STATUS outputs (see technical data) are equipped with current limiting, so they can switch
signaling components directly without external resistors (e.g. LED, optocouplers or relay coil).
- The LED signaling function is given in the table of technical parameters and illustratively de-
scribed in seven case studies.
Description of device
1
2
3
4
1. Terminals of supply voltage
2. Setting the charge current
3. State output terminals
4. Terminals of output voltage 12 V
5. Terminals for connecting the batteries
6. Indication LED
7. Terminals of output voltage 27 V
Connection
100 - 250 V AC
-
external DC source
+
02-68/2017 Rev.1
24 V battery -
+
battery 1 battery 2
12 V 12 V
OVERLOAD
U LOW
OUT
U OK
OUT
+12V OK
CHARGE
U FAIL
PRI
- + - +
12 V EFAS 27 V iNELS
5
6
7
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