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Electrical connection
Connect the power supply unit to the mains 230Vac by use of a differential magneto-thermic bipolar 6A switch (minimum distance
between contacts 3mm) aimed to protect the line against possible short circuit and operator against current leakage.
IMPORTANT :use different cables-passes and pipes for ac supplying input (mains 230 Vac) and dc outputs + alarms (SELV) – see Fig. 2
The minimum section recommended for ground connection is 1,5 mm.
For connections refer to Fig. 2. In this figure the following important details are shown:
Output Terminals (Power supply unit)
BATT +
Positive pole of the battery
BATT -
Negative pole of the battery
A +
Positive output for charge A
A -
Negative output for charge A
Tab 4
Terminal board Alternated Supplying
L
connection to mains line (230 Vac)
Protection ground connection
N
connection to neutral
Checks and Adjustments
Control is shown below (VRES1) is adjusted at factory and
Tampering of this control automatically means the lost of the warranty.
VRES1 - Potentiometer for adjustment of the output Voltage
INDICATION ON THE FRONT PANEL (located on the door of the power supply):
Standard visualization
Battery low
Battery OK
or
Battery fuse fault
(if flashing)
Alternate visualization
Pushing SW2 (Fig. 3) on the display board for less than 2 seconds, the Amp-meter function is activated. The five LEDs bar show, from
left to right, the current level supplied to the charges; each LED indicating 1A of current. When the Switch button is pushed again, or after
1 minute, the display go back to the standard visualization.
CONNECTION OF CONTROL BOARD (placed near the power board) Refer to Fig. 2
Relay "MAINS" of mains missing, – Terminals NC, NO, C (operating with SELV Voltages)
Relay output with intervention for missing mains and programmable activation delay
DIP-SWITCH
1
2
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
ON
Tab 5
In order to be compliant to the EN54-4 standards, the maximum delay permitted is 30 MINUTES of missing mains. On the
contrary the power supply is not compliant to the standards.
Ten seconds after the mains is restored the relays goes back to normal condition.
Relay "FAULT" of failure indication – Terminals NC, NO, C (operating with SELV Voltages)
S-326.1-ALI50EN-ENG A. 1 05-2015
Output terminal board (power supply)
B +
B -
C +
C -
Fig.1
Battery
Mains
Fault
Overcharged
or
Battery
resistance high
(if flashing)
Delay
3
OFF
25 min
ON
15 sec
OFF
60 sec
ON
OFF
15 min
ON
60 min
OFF
120 min
ON
240 min
Positive output for charge B
Negative output for charge B
Positive output for charge C
Negative output for charge C
must not be altered by the operator.
Low battery:
Battery ok:
Overcharged battery: battery voltage over 28 Vdc
Mains:
Fault :
EN54-4
Compliant
YES
(Factory default)
YES
YES
5 min
YES
YES
NO
NO
NO
battery voltage lower than 20,8 Vdc
battery fuse fault (if flashing)
battery voltage between 20,9 Vdc and 28 Vdc
Battery resistance high (if flashing)
presence of 230 Vac mains
LED of general failure, it is activated in case of:
Absence of 230 Vac mains
Faulty fuse
Loss of battery charge
Low battery
Overcharged battery
Disconnected battery
Battery resistance > 1 ohm
Page 5 of 7
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