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COSTER
B 554 - ALC 318 Eng.
10.11.08 AM
REV. 01
B 554
10.11.08 AM
REV. 01
AUXILIARY POWER SUPPLY UNIT
FOR “MULTIZONE” SYSTEM LOCAL DEVICES
AND FOR GENERAL PURPOSES
ALC 318
• General purpose 5 to 13 Volt c.c. power supply unit
• Suited to provide auxiliary power to “MULTIZONE” local devices
• 230 V a.c. power supply (or 240 V a.c. for UK market) , 3-unit DIN rail mounting
1. APPLICATION
The ALC 318 universal power supply unit generates direct current power, adjustable from 5 to 13 Volts–, via a 2terminal input.
This power supply unit is designed primarily to provide power to “MULTIZONE” system local RTL ... devices, when
the system includes over 20 units.
ALC 318 è capace di alimentare 50 UNITA' LOCALI tipo RTL ... oppure 25 unità locali con uscita 0...10 Volt.
3. FRONT PANEL
2. OVERALL DIMENSIONS
2
3
1
COSTER
53
5
ALC 318
45
35
115
4
AUXILIARY
POWER SUPPLY UNIT
50.5
1
21
1 - Power On LED
1 – Protective cover for electronic components
2 – Base with transformer, relay and terminal blocks
3 – Screws for securing cover- base
4 – DIN rail securing elements
5 – DIN rail release lever
4. TECHNICAL DATA
Power supply
Frequency
Consumption
Protection
Radio disturbances
Vibration test
Construction standards
Case
Mounting
Materials:
base
cover
230 V a.c. ± 10%
or 240 V a.c. for UK market
50 ... 60 Hz
5 VA
IP40
VDE0875/0871
con 2g (DIN 40 046)
CEI
Modulo DIN 3E
su profilato DIN 35
NYLON
ABS
Ambient temperature:
operating
storage
Ambient humidity
Power output adjustable from
- max power
Power adjustment
- 2 short-circuit terminals
- 2 open circuit terminals
- Other power values
Local RTL... units connectable
Weight
0 ... 45°C
– 25 ... + 60°C
Class F DIN 40040
5...13 V–
up to 150 mA
2 terminals
5 V–, max 70mA
13 V–, max 150 mA
w/ specific resistance
max. 50 or 25
0.31 kg
5. INSTALLATION
The unit must be installed in a dry area, which complies with the conditions given in the “Technical Data” section.
It must be inserted in electrical systems compliant with standards IEC 79-14 (CEI EN 60079-14) and installed in
a danger-free area, as provided for by standards IEC 79-10 (CEI EN 60079-14), ruling out explosive atmospheres
due to the presence of gases in sufficient quantities to require special measures for the construction, installation,
and use of electrical systems. The unit can be installed on DIN rail or in a DIN modular enclosure.
We reserve the right to make changes without notice
1
B 554 - ALC 318 Eng.
COSTER
10.11.08 AM REV. 01
6. WIRING DIAGRAM
L
N
L
N
Gi – Connector terminal for the G wire of the P-Loc cable + power supply
(3 wires) from the Master or another auxiliary power supply unit
P– – Input terminal for the P wire – of the P-Loc cable + power supply (3 wires)
This terminal represents both the cold pole of the input P-Loc and
power supply’s 0 Volt
P+ – Input terminal for the P+ wire of the P-Loc cable
This terminal represents the hot pole of the input P-Loc
ALC 318
0 – 0 Volt
E – Output power adjustment input
Gu – Power supply output terminal (adjustable from 5 to 13 Volts)
P– – 0 Volt power supply output terminal
P– This terminal represents both the power supply’s 0 Volt and the cold pole
of the output P-Loc
Gi P– P+ 0 E Gu P– P+
P
P
LOC
+ Power supply
input
P+ – Output terminal for the P+ wire of the P-Loc cable
This terminal represents the hot pole of the output P-Loc
LOC
+ Power supply
output
7. “MULTIZONE” WIRING DIAGRAM
For further details on the use of ALC 318 in the “MULTIZONE” system, see technical datasheet MRL 608.
8. ELECTRICAL CONNECTIONS
Proceed as follows :
• Separate the base from the cover by unscrewing the two screws (2.3).
• Mount the base on the DIN rail and check that the securing elements (2.4) anchor it correctly.
• Execute electrical wiring in strict accordance with the diagram, and in respect of safety regulations, using the
following cables :
– 1,5 mm2 for power supply
– for all other wiring, see MRL 608 technical datasheet
• Switch on power (230 V a.c.; or 240 V a.c. for UK market)) and check its presence at terminals L and N.
• Replace the cover on the base/terminal block and put the two screws tightly in place (2.3).
9. OUTPUT POWER ADJUSTMENT
ALC 318 is a normal power supply unit, with adjustable power output from 5 to 13 Volts–.
To adjust power output, terminals 0 and E are used.
– SHORT CIRCUIT = 5 Volt (max 70 mA)
– OPEN CIRCUIT = 13 Volt (max 150 mA, used for the “MULTIZONE” system)
– By inserting the appropriate resistance between the two terminals, other power outputs of between 5 and 13 V can be set.
Table - Resistance, Voltage and Max Current
Resistance in Ohms
Voltage Volt
max mA current
SHORT CIRCUIT
5
70
270
6
90
600
7
110
1,060
8
130
1,760
9
150
3,000
10
150
5,300
11
150
12,400
12
150
OPEN CIRCUIT
13
150
10. POWERING OF MULTIZONE SYSTEM LOCAL RTL ... UNITS :
ALC 318 can supply power to :
50 RTL 110/111/510/511 or
25 RTL 120/121/520/521 units with 0...10 Volt output
Data sheet changes
Date
Revision
Page
Section
10.11.08 AM
01
1
4. Technical data
CONTROLLI
TEMPERATURA
ENERGIA
COSTER TECNOLOGIE ELETTRONICHE S.p.A.
Sede Legale: 20132 Milano - Via San G.B. De La Salle, 4/a
E-mail: info@coster.info
2
Tel. +39 022722121
Fax +39 022593645
Fax +39 0227221239
Tel. +39 065573330
Fax +39 065566517
Tel. +39 0364773200
Tel. +39 0364773202
D 33359
COSTER
Head Office & Sales
Via San G.B. De La Salle, 4/a
20132 - Milano
Orders
Reg. Off. Central & Southern
Via S. Longanesi, 14
00146 - Roma
Shipping
Via Gen. Treboldi, 190/192
25048 - Edolo (BS)
Description
Technical data Maximum power output value corrected
Web: www.coster.eu
We reserve the right to make changes without notice
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