UniPOS DNP508 User manual

UniPOS Lightning Protection Unit
Instruction Manual page 1
Revision 4 pages 4
LIGHTNING PROTECTION UNIT
Type DNP508; DNP5082
Instruction Manual
(Revision.4/03.17)

UniPOS Lightning Protection Unit
Instruction Manual page 2
Revision 4 pages 4
1. GENERAL DESCRIPTION
Lightning protection units DNP508 and DNP5082 and are designed to protect
electronic devices from electromagnetic pulse of lightning.
The device is available in two versions:
DNP508 - to protect inputs of the lines of conventional Fire Control Panels;
DNP5082 - to protect inputs of the loops of Fire Control Panel IFS7002,
manufactured by UniPOS.
Lightning protection unit DNP508 (DNP5082) is to be mounted close to the Fire
Control Panel or at a place, where the fire alarm lines (loops) are extended beyond the
building (outdoors).
2. TECHNICAL DATA
DNP508
DNP5082
2.1. Nominal voltage
28V DC
-
2.1.1. Signal Loop
-
33V DC
2.1.2. Power Loop
-
28V DC
2.2. Maximum current pulse IS 8/20
20 kA
2.3. Response time
1 ns
2.4. Maximum resultant voltage at IS8/20
45.7V
-
2.4.1. Signal Loop IS 8/20
-
72.2V
2.4.2. Power Loop IS 8/20
-
53.3V
2.5. Operating temperature range
from minus 10ºС to 60ºС
2.6. Storage temperature
from minus 40ºС to 70ºС
2.7. Relative humidity resistance
(92+3-2)% at 40ºС
2.8. Degree of protection
IP40
2.9. Overall dimensions
162х120х72 mm
2.10. Weight
0,3 kg
3. STRUCTURE AND FUNCTIONALITY
3.1. Structure
Lightning protection unit type DNP508 (DNP5082) consists of two main parts: a base
set –an electronic unit and a cover. The electronic unit contains a printed circuit board
with screwing terminals, used for connection of the fire alarm lines.
The cover is fixed by the base my means of four screws.
3.2. Functionality
When lightning strikes, DNP508 limits the maximum voltage of the line to 150/180V,
and the terminals of the Control Panel to 46V for DNP508 (and 72/53V for DNP5082).
4. INSTALLATION
Mount the base of DNP508 (DNP5082) to the wall by means of dowels and self-
tapping screws.
Separate the cover from the base. Fix the base to the wall by dowels and wood
screws. Then perform the electrical installation in accordance with item 4. Place the cover
to the base and screw the four fixings.
4.1.Connecting method (fig.1 DMP 508) (fig.2 DMP 5082)
4.1.1. Connect the fire alarm lines (loops) to terminals FD.
4.1.2. Connect terminals FS to the respective terminals of the Control Panel.

UniPOS Lightning Protection Unit
Instruction Manual page 3
Revision 4 pages 4
.
FD
+-FD +-FD +-FD +-FD +-FD +-FD +-FD +-
FS
+-FS +-FS +-FS +-FS +-FS +-FS +-FS +-
Fig.1
FD
+-
FS
+-FS +-FS +-FS +-FS +-FS +-
FD
+-FD +-FD +-FD +-FD +-
power loop loop 1
power loop loop 1
loop 2
loop 2
Fig.2
4.1.3. Performing Installation:
- for lines / loops - by means of wire (0.8-2.5)mm2;
- for grounding - by means of wire (1.5-2.5)mm2 .
. WARNING! For the reliable operation of the lightning protection unit, it is necessary to
realize a secure electrical connection from the grounding terminals to the housing of the
Control Panel. The housing of the Control Panel must be grounded to the power supply
switchboard with a separate wire with minimum cross section 1.5 mm2. The supply
switchboard must have a standard grounding.

UniPOS Lightning Protection Unit
Instruction Manual page 4
Revision 4 pages 4
When installing the lightning protection unit into a place, where the fire alarm lines are
extended beyond the building, the grounding wire must be connected to the grounding
bus of the building or a standard grounding to be made for that purpose.
4.2. Satisfactory operation test in real conditions
Consecutively short each line(loop) for a while - The Control Panel must “FAULT
CONDITION”.
5. SERVICE SCHEDULE
Procedure
Periodicity
1.
Inspection for visible physical damages
weekly
2.
Satisfactory operation test in real conditions
monthly
3.
Check and clean dust contamination
every six months
6. WARRANTY
The warrant period is 24 months from the date of the purchase. The manufacturer
guarantees the normal operation of the devices, providing that the service requirements
of the instruction manual herein have been observed.
UniPOS
47, “San Stefano” Str., 5800 Pleven, BULGARIA
phone [phone], fax [phone]
e-mail: [e-mail]
Mladost 1, bl.79B, entr.2, ap.17, 1784 Sofia, BULGARIA
phone/fax [phone]
e-mail: [e-mail]
www.unipos-bg.com