Technical data

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Power supply PS3-100/iNELS

PS3-100/iNELS: 8595188131568

Stabilized switching power supply, with the total power of 100 W

It is used to supply central units within intelligent electro-installation iNELS

It is used in MaR ﬁ eld (measurement and regulations)

Fixed output voltage DC 27 V and DC 12 V, galvanically isolated from the mains

Power source of 27 V and 12 V to the GND

Electronic short circuit protection, high-capacity and thermal overload, over voltage

UPS functions - backup outputs 24 V and 12 V batteries connected backup

Recharging the batteries from 27 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

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 (PZTS) or EPS. Both voltages are available without interruption during power AC power supply (UPS function) - assuming they are connected backup battery. Other parts of the

source circuits are back up and recharge the batteries, which provide switching mode connection, charging and disconnect the battery. When in the backup mode, the battery is completely

discharged, the circuit is immediately switched oﬀ to avoid the deep discharge. It is guarded by a maximum discharge current - in his crossing of the batteries are also disconnected.

Works if the power supply (oscillations) and its output voltage is greater than 26.9 V, the backup battery charged shock, the maximum value is set by trimmer on the panel source. When

charging the yellow LED CHARGE. Source priority iNELS powers the system and the remaining capacity of up to 100 W only recharges the battery. If the output is high stress and tension

source drops below 26.5 V, UPRI OK LED turns oﬀ and disconnects the charge (oﬀ and yellow LED CHARGE). 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). Note: If the source is disconnected from the network (does not oscillate) and connect the battery

now, remain disconnected the battery and power outputs are energized. The activation must be connected to the power supply voltage. The last part of the unit signaling circuits and status

outputs. STATUS outputs (see technical data) are equipped with current limiting, so they can directly ballasts without external resistors switched signaling components (e.g. LED, optocouplers

or relay coil).

Features LED indication is given in the speciﬁ cations and in the table below are some examples.

operating switching power supply