Features of the power supply unit:
•
13.8 VDC uninterruptible power supply
•
Controlling of battery charging and
maintaining
•
Protecting of battery against excessive
discharging (UVP)
•
Securing the BAT circuit against short-circuit
and the battery reverse connection
•
Selectable charging current
•
START function of manual battery actuation
•
Checking the status of safety fuses of AUX1,
AUX2 and AUX3 outputs
•
LED optical signalisation
•
BS output for the signalling loss of the 230V
network
•
AW output of power supply unit failure,
tripped by:
•
outlet short-circuit (SCP)
•
outlet overload (OLP)
•
battery disconnection < 10V (UVP)
•
failure of DC/DC voltage converter
•
Safety equipment:
•
SCP short-circuit protection
•
OLP overload protection
•
OHP overheat protection
•
OVP overvoltage protection
•
Surge protection
•
Against sabotage
CONTENTS:
1. Technical description
1.1. General description
1.2. Block diagram
1.3. Description of elements and power supply connectors
1.4. Technical parameters
2. Installation.
2.1. Requirements
2.2. Installation procedure
3. The power supply operation indication
3.1. Optical indication
3.2. Technical output
4. Service and operation
4.1. Overload or short circuit
4.2. Battery operation
4.3. Maintenance
1. Technical description.
1.1. General description.
The buffer power-supply is used for uninterrupted supply of devices requiring stabilized voltage of
12V DC
(+/-15%).
The power-supply provides voltage within the following range:
U= 11.0V÷13.8V DC
of total current
efficiency equal to
10A.
In case of power voltage decay, prompt switching to battery supply occurs.
The power-supply has got a metal casing (RAL 9003 colour) with a space for 40Ah/12V battery. The casing
features a micro-switch indicating door (front) opening and separating from the wall.
Information about additional equipment for PSBD 10A12 power-supply:
Modules of DC/DC
voltage converters
DC/DC 10 (1,0 A)
DC/DC 20 (2,0 A)
Protection module
(fuse blocks)
AWZ 535 – LB4/AW, AWZ 536 – LB5/AW (PTC or FTA, with failure indication – OC
type output)
AWZ 573 – LB4/0,3A/PTC, AWZ 574 – LB4/0,5A/PTC, AWZ 575 – LB4/1,0A/PTC,
AWZ 576 – LB4/0,3-1,0A/FTA,
AWZ 577 – LB8/0,3A/PTC, AWZ 578 – LB8/0,5A/PTC, AWZ 579 – LB8/1,0A/PTC,
AWZ 580 – LB8/0,3A-1,0A/FTA
DC voltage reducers
13,8V DC / 12V DC
RN250 – RN-2,5A/12V
RN500 – RN-5,0A/12V
