Wiring And Connections; Accessories - Mastervolt MASS 24/15-2 Betriebsanleitung

WIRING AND CONNECTIONS

When connecting any auxiliary equipment and/or a batte-
ry isolator, proceed as follows:
• switch off the charger;
• switch off the AC mains or generator supply;
• isolate the DC distribution from the battery.
Battery wires
Keep the cable connection between charger and battery
as short as possible. If possible use coloured battery
cables. I f this is not possible, mark the plus and the minus
cables with coloured insulating tape, e.g. red for plus and
blue for minus. Use the following diameters:
lenght up to 3 meter
6 qmm
Connection of main batteries
The minus cable (blue) on the -battery (minus connection)
of the battery charger. The plus cable (red) on the + main
battery (plus-connection) of the charger.
The other side of the cable has to be connected to the
battery or the DC distributor. The minus cable (blue) on
the min-connection of the battery or DC divider. The plus
cable (red) on the plus-connection of the battery or DC
divider.
Reversing the plus and the minus wil blow the
fuse near to the minus connector ( the red LED
above the fuse wil light up ). Before you replace
the fuse check the polarity of the connections. Replace
the fuse only for a 20A fuse.
Too thin cables and/or loose connections can
cause dangerous overheating of the cables and/
or terminals. Therefore tighten all connections
properly, in order to limit as much as possible transition
resistance, and use the battery cables with the correct
diameter.
Battery isolator
If one or more batteries or battery sets must be charged
at the same time via one output, a battery isolator should
be used. A battery isolator isolates the different battery
sets from one another, in order to prevent one discharging
the other. A consequence of the battery isolator is a volta-
ge drop of 0.7 Volt. This voltage drop can be compensa-
ted by removing a jumper on the front panel of the char-
ger.
Choose isolator type:
2 battery set 3 battery set
MV 702
For proper installation, see the connection diagram inclu-
ded with the battery isolator.
EN / MASS battery charger / August 1999
lenght above 3 meter
10 qmm
MV 703
Steps:
1 Check if the charger, the main supply and the DC
divider are switched off.
2 Connect the battery isolator(s) using cables with the
same diameter as the battery cables.
3 Compensate the voltage drop over these diodes by re-
moving the "diode compensation" jumper on the front
of the charger.
4 Switch the charger on.
Connection of cranking battery (3A output)
The distance between charger and cranking battery de-
termines the required, minimal cable diameter. For cable
lenghts up to 6 meters 2,5 qmm must be used. When
using long thin cables, it will take proportionately longer
before a crancking battery is entirely charged. Therefore
use, for longer distances, a larger diameter. The maximal
charging current for the cranking battery is 3A. The char-
ging current for the main battery will in this case be 3A
lower.
• Connect the minus of the cranking battery to the minus
of the main battery.
• Connect the plus of the cranking battery to the "BAT2"
plus terminal of the charger.
AC power supply
Check the voltage of your mains source or generator. This
must be between 190 and 250 VAC.
Connect the mains cable on one side on the MASS
charger and the opposite side to the mains or generator.

ACCESSORIES

When connecting accessories, first switch the charger
„OFF" and disconnect from AC.
Temperature sensor
Mount the sensor at a location that gives a good indication
of the battery temperature. Plug the connection cable into
one of the input jacks of the charger.
Basic remote panel
Plug the connection cable into the analog input jack.
Standard remote panel
Plug the connection cable into the digital input jack.
The communication protocol is based on quasi RS 232.
Adjustment Interface & advanced remote panel
Plug the connection cable into the digital input jack.
The communication protocol is based on quasi RS 232.
ADJUSTMENTS
On the front of the charger you find three jumpers, each
for a specific application. You can easily remove the jum-
pers with a pincet or a small pincer.
INSTALLATION
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