10
6. TROUBLE SHOOTING
Here is a list of information that starting from LEDs signals or coming from the "single parameter/Guide" offers some
typical faults.
ATTENTION: chargers can provide slightly different information depending on the fact they are single or three phase.
These depends on components presents in the electrical circuit
L1
L2 L3 L4 L5 Display
DESCRIPTION OF THE PROBLEM
Information valid for single-phase systems (par. 4=2)
1
--
--
--
--
--
--
DC is missing
: Battery is not connected to the charge or voltage is very low (7V).
Vac mains might be present.
The fuse protecting the diode bridge is burnt.
the battery plug is damaged , a battery cable is interrupted
Electronic board not powered or faulty.
2
F
--
--
--
--
bAt
DC under voltage
: Battery is connected to the charger but voltage is below min
threshold (1,7Vel o 85% Vnom).
3
on
--
--
--
F
cur
AC Mains is missing
: Charger has attempted to start charging but detect that Vac
Mains is missing. Please check input plug connection, the main switch of the grid and
related input AC fuses. When AC power is back the system restarts automatically
Information valid for three phase systems (par. 4=3)
4
--
--
--
--
--
--
AC and DC are missing:
Both battery and input Vac Main are missing.
If Vac is present problem is connected to the auxiliary transformer or to its
connections.
The fuse protecting the diode bridge is burnt.
the battery plug is damaged , a battery cable is interrupted
The electronic card is not powered or is faulty
5
F
--
--
--
--
bAt
DC under voltage:
Battery voltage is present, but the battery "is not" connected to
the charger or below min threshold (1,7Vel o 85% Vnom).
6
on
--
--
--
--
Stop
AC Mains is missing:
Battery is present but Vac is missing. Please check input plug
connection, the main switch of the grid and related input AC fuses. Problem is
connected to the auxiliary transformer or to its connections.
Information valid for both single and three phase systems
7
on
--
--
--
--
Stop
Stop
: Charger has been stopped through the push off button placed on the front
door.
8
on
--
--
on
--
bAt1
ATTENTION
: Charger is supplying current but nominal voltage has not yet reached
(between 85-100% Vnom). Battery capacity is probably too big (Ah).
After some minutes the charger might stop automatically for over-current alarm
9
on
--
--
--
on
bAt9
Over Voltage
: A Wrong Battery has been connected.
Battery has a higher voltage than expected (>120% Vnom)
10
on
--
--
--
F
cur
Under current
: The current in the battery is below the minimum threshold (2-3 A).
Charger will try to restart every minutes on.
1) There might be a possible bad contact or a connection problem .
Check AC mains plug connection, the main switch of the electric line and the input
AC fuses
2) Battery is sulphated
3) The ammeter sensor or its connection cables are damaged.
11
on
--
--
--
F
tEr
tErc
Thermal fault
: If the power transformer is hot one or more thermal probes are
open ( tEr ) or preventive intervention of the board to reduce the temperature of the
power transformer ( TERC ) .
When the temperature drops probes are restored and the system restarts .
If the transformer is cold check the electrical circuit of the probe and of the stop
button (see the wiring diagrams ) . One or more probes on the transformer are not
working or possible damage of related wirings
12
on
--
--
--
on
TiME
TiME
: Maximum charging time Phase 1has been exceeded: 11h (<2,4Vel)
t_t2
: Maximum charging time Phase 2 has been exceeded: 9h (>2,4Vel)
tout
: Maximum global charging time has been exceeded: 18h (total)
Any of these alarms can be caused by following cases:
1) AC Mains is too low
2) Vac tapping on power transformer is not in the correct position
3) Battery is not suitable: too big or damaged. Battery does not reach 2,4Vel
4) Wrong card setting
Without the AC Main , the display switches to standby mode ( -___ ) after one minute .
Pressing any key it turns on for another minute .
ATTENTION: during the starting up phase (see par 4.1) the charger has all the LEDs light ON for 10 sec
