If the installation has only one or two groups of batteries, always connect the output marked "MASTER". This is
the main output of the battery charger. If the MASTER output is not connected, the battery charger may supply
an output lower voltage than rated and therefore less power. It is advisable to connect the group of batteries
which are used more often (typically the service group) to the MASTER output terminal.
The positive output terminals that are not used must be kept free (do not bridge the terminals).
WARNING: the use of inadequate size cables and the incorrect connection of terminals or electrical joints
may result in dangerous overheating of the connecting terminals or cables.
FIG.3A
CONTROL SIGNALS
The battery charger is provided with a 9-pin female D-shell connector (DB9 connector, see fi g. 3A) which indi-
cates the signals which can be used for monitoring and controlling the equipment.
The position and description of the signals on the connector are listed below:
FEMALE CONNECTOR (DB 9)
PIN
DESCRIPTION
1
CAN BUS terminator (124 ohm)
2
CANL signal - CAN BUS interface
3
Battery charger negative
4
Not used
5
Earth
6
Not used
7
CANH signal - CAN BUS interface
8
Basic state of the battery charger (+V output, 20mA max)
9
+5Vdc (5mA max)
BASIC STATE OF BATTERY CHARGER
PIN 8 CONNECTION
STATE
HIGH IMPEDENCE
OFF OR PROBLEMS PRESENT
+ V OUTPUT
ON AND NO PROBLEMS PRESENT
For a wiring example of control signals look at fi gure 3B.
SBC ADVANCED PLUS MEDIUM - REV005A
OPERATING
FIG.3B
5
9
4
8
3
7
2
6
1
BASIC STATE
GB
17