BBH MGX User manual
INSTRUCTIONS FOR MGX BATTERY CHARGERS
The baery charges of the MGX series are controlled by an internal microprocessor that enables automac recharging of baeries and
stores the behaviour of the baery charger during its use.
This device had been developed for a professional use. For best results and safety, the user is required to read, follow and keep these
instrucons carefully.
The manufacturer is not responsible for any damage due to improper use.
BATTERY
The baery voltage has to correspond to the MGX rated voltage (see rang data, for example 24V).
A label on the MGX indicates the correct rechargeable baery type. Check that it matches the features of your baery. If necessary, it is
possible to change the programming in order to adapt the MGX to your baery. Make contact with the supplier in order to carry out this
change.
INSTALLATION
To ensure maximum safety, installaon has to be carried out as indicated by the manufacturer.
Any work on the charger must be carried out by qualied and authorized technical personnel.
WARNING: There is a rick of electric chock inside the box.
Aer unpacking be sure that the device is in perfect condion; in case of doubt, do not use it and contact the supplier. It is beer to install
the MGX indoors, in a room free of humidity, acids or dust, with room temperature between 0-40°C. During use do not obstruct the ven-
laon holes. Any overheang of the MGX will reduce the output current; if overheang connues, charging will be stopped (see SPECIAL
SIGNALS).
ELECTRICAL SUPPLY
Be sure the rang data of the baery charger is compable with the mains power supply (single-phase, voltage, frequency, power). Plug
into a socket equipped with protecons that comply with local standard regulaons. If you have to use an extension cable, contact the
manufacturer for correct technical informaon.
The replacement of the supple cable has to be carried out by a qualied personnel.
BATTERY CONNECTION
Respect the polarity: red wire to + and black wire to -.
Do not use extension cables without the manufacturer’s approval.
USE
Connect the baery and the power supply cable. LEDs light up for 2 seconds (PAN. 1), then only the RED LED stays on (PAN. 2). If this does
not happen, check the connecon on the baery and supply.
The MGX is unable to acvate the charging if the voltage of the baery is lower than 0.3 V/Cell (i.e., 3.6 V for a 24V baery). If everything
is funconing properly the charger performs the whole charge and stops with the GREEN STOP LED illuminang (PAN 3).
The me of charge depends on the discharge level, the baery type and the programmed charge cycle.
For lead acid, gel or AGM baeries, 80% discharged, the whole recharge lasts 10-14 hours.
Shorter mes are possible if the baery is less than 80% discharged.
Longer mes are possible if the baery is more than 80% discharged.
SPECIAL SIGNALS
When the microprocessor detects a problem, it stops charging and signals this by ashing the two LEDs (PAN. 4). The dierent possible
problems are:
Overheang: the thermal condions interrupt the current in order to avoid damage
MGX Battery Chargers—User Guide (page 1 of 2)
Baery Service Hub Ltd
www.baeryservicehub.co.uk
Defecve baery: the voltage trend shows a possible failure of the baery
Incorrect baery: the baery has a higher voltage than the charger (36V baery on a 24V charger).
In order to determine the kind of problem it is necessary to read the internal MGX data memory (see DATA MEMORY secon). If the two
LEDs remain lit (connecng the baery) (PAN. 6), means an internal problem has occurred. Only the manufacturer can solve this problem.
CHARGE INTERRUPTION
Power failures charging and all LEDs go out (PAN. 5); when the power supply is resumed charging starts again at the point it was interrupt-
ed. If charging has to be interrupted for any reason, switch o the charger rst disconnecng the mains supply and the cables connected
to the baery.
Never disconnect the baery if the charger is supplying current, as the resulng spark could ignite the gases produced by the baery and
cause an explosion.
For best charging, disconnect the baery only when the microprocessor indicates STOP (PAN. 3).
HOLDING
If you leave the MGX on the line and connected even during long periods of inacvity, it is possible to maintain 100% charge level. At the
end of a charge cycle (device indicang STOP – PAN. 3) the MGX goes into operaon and supplies a small current in order to keep the
baery voltage at 2.25V/Cell. The length of this phase is unlimited. During the holding phase the display indicates STOP (PAN. 3).
DATA MEMORY
The internal microprocessor can store a remarkable quanty of informaon throughout the life of the MGX. This informaon can be read
only through the suitable terminal (MULTIPROGRAMMER) to be connected to the programming connector, which is accessible through a
slit on the boom of the charger (see Fig. 1).
Contact the supplier for the purchase of a MULTIPROGRAMMER-CLIENT.
Reading this informaon helps detect the problems and their cause. It will be easily understood whether they are caused by a malfunc-
on of the charger or the baery.
It is also possible to understand whether the problems are caused by the non-compliance of the user with the rules. Be parcularly care-
ful when reading the user’s handbooks.
GENERAL RECOMMENDATIONS
Do not let the baery run down completely (maximum 80%): it will last longer.
Keep the baery contacts free of oxidaon. Keep the charging area well venlated.
MAINTENANCE
Keep the fan and the venlaon holes clean.
To clean the outside, use a damp cloth.
Use only original spare parts.
MGX Battery Chargers—User Guide (page 2 of 2)
Baery Service Hub Ltd
www.baeryservicehub.co.uk
Table of contents
