S-326.1-ALI50EN-ENG A. 1 05-2015
Page 5 of 7
Low battery:
battery voltage lower than 20,8 Vdc
battery fuse fault (if flashing)
Battery ok:
battery voltage between 20,9 Vdc and 28 Vdc
Overcharged battery:
battery
voltage over 28 Vdc
Battery resistance high (if flashing)
Mains:
presence of 230 Vac mains
Fault
:
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
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 o 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)
Output terminal board (power supply)
BATT +
Positive pole of the battery
B +
Positive output for charge B
BATT -
Negative pole of the battery
B -
Negative output for charge B
A +
Positive output for charge A
C +
Positive output for charge C
A -
Negative output for charge A
C -
Negative output for charge C
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.
must not be altered by the operator.
VRES1 - Potentiometer for adjustment of the output Voltage
INDICATION ON THE FRONT PANEL (located on the door of the power supply):
Standard visualization
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 output with intervention for missing mains and programmable activation delay
Relay “MAINS” of mains missing, – Terminals NC, NO, C (operating with SELV Voltages)
DIP-SWITCH
Delay
EN54-4
Compliant
1
2
3
OFF
OFF
OFF
25 min YES
(Factory default)
OFF
OFF
ON
15 sec
YES
OFF
ON
OFF
60 sec
YES
OFF
ON
ON
5 min
YES
ON
OFF
OFF
15 min
YES
ON
OFF
ON
60 min
NO
ON
ON
OFF
120 min
NO
ON
ON
ON
240 min
NO
Tab 5
Ten seconds after the mains is restored the relays goes back to normal condition.
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.
Relay “
FAULT
” of failure indication – Terminals NC, NO, C (operating with SELV Voltages)
Fig.1
Battery low
or
Battery OK
Battery
Overcharged
or
Mains
Fault
Battery fuse fault
(if flashing)
Battery
resistance high
(if flashing)
