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4445103656
2. Set the DIP switches according to the battery
type to be charged, see chapter “DIP switch
settings” on page 13.
3. Connect the positive cable from the
DC output
socket
+
for house battery, or
5A +
for starting
battery. Connect the cable to the positive ter-
minal of the battery. Protect the the positive
cable of the house battery with a 30 A fuse and
the starting battery with a 7.5 A fuse.
4. Connect the negative cable from the
DC out-
put
socket
-
of the battery charger to the nega-
tive terminal of the battery.
5. Optional, compensation for long cabling:
Connect the
Sense+
and
Sense-
wires to the
positive and negative terminals of the house
battery. Protect the
Sense+
cable with a 3 A
fuse
6. Plug the 230 V power cable into the
AC INPUT
socket on the charger.
7. Plug the power cable into a 230 V socket that
is protected by a residual current circuit
breaker.
Connections for charging two house batter-
ies with MT 1250 (fig.
1. Follow step 1 to 2 in the section above.
2. Connect one positive cable from each
DC out-
put
socket
+
. Connect the cables to each pos-
itive terminal of the batteries. Protect the
positive cables of the house batteries with
60 A fuses, and 7.5 A for starting battery.
3. Connect the negative cable from the
DC out-
put
socket
-
of the battery charger to the nega-
tive terminals of the batteries.
4. Optional, compensation for long cabling:
Connect the
Sense+
and
Sense-
wires to the
positive and negative terminals of the house
battery. Protect the
Sense+
cable with a 3 A
fuse
5. Follow step 6 to 7 in the section above.
Using the device
Charging the battery
1. Connect the battery to the
DC output
sockets
+
and
-
on the charger as described in chapter
“Connect the battery to power supply” on
page 13.
– Make sure the polarity of the connection is
correct.
2. Turn the charger on with the main switch.
Status
The
status
indicator
LED (fig.
2
) dis-
plays the operating status (see chapter “Battery
charging curve” on page 10).
The status indicator is also visible on the remote
control (accessory).
Switch mode
Description
ON/REMOTE
Turn the charger on, the remote
control is active if there is one
(accessory).
OFF
Turn the charger off.
SIGNAL
The charger will be controlled by
an external device connected to
the charger.
Status
indicator LED
Description
Orange, fast blinking
Derating, charging with
maximum 50% current
because of low voltage
startup
Orange, slowly blinking
Bulk phase, charging with
constant current
Orange, constant light
Absorption phase, charging
with constant voltage
Green, constant light
The battery is fully charged
(float phase), or DIP-switch
S4 is set to 1 (store)
Green, slowly blinking
Store phase, the state of
charge is maintained
Red, constant or blink-
ing
