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OPERATING
GB
CAN BUS NETWORK CONNECTION
When making the data interface connection (CANH and CANL signals) use an unscreened cable with a twisted pair
(cross-section 0.25/ 0.35 mm
should be no more than 100 m. Activate the terminator at the first and last device connected to the network. If there
is only one device, the terminator does not need to be activated. An example of a network connection is given below:
SBC ADVANCED PLUS
DB9 TERMINATION ACTIVATED
5
9
4
8
3
7
2
6
1
OPERATION
When the battery charger is switched on, for a short period, all the LEDS on the front panel will light up. After that the battery
charger will place itself in the optimum charging mode to best suit the batteries (or load) connected. The battery charger has
a loading characteristic of the IUoU type. The SBC battery chargers can also be used as a power supply, that is, with batter-
ies disconnected. We suggest you use the battery charger in this mode only occasionally and not for ordinary use. However,
avoid connecting high inductive loads (e.g. high powered motors) with the batteries disconnected as it you could cause dam-
age to the equipment.
CHARGING CHARACTERISTICS -
BULK phase (constant current) - The batteries need more current than the battery charger can supply. Current is limited
to the maximum rated output. The battery charger can enter in this phase during start-up, when the batteries are low or
when a high load is connected.
ABSORPTION phase (constant voltage) - The battery charger charges the batteries at a constant ABSORPTION voltage
and at the current they need. The current needed by the batteries will tend to diminish over time. When the required current
is less than 20% of the maximum output value, the battery charger will change to the FLOAT phase. With parallel-connected
battery chargers, the threshold is the 20% of the sum of the maximum output currents of the units connected in parallel.
FLOAT phase (maintenance) - The battery charger charges the batteries at the constant FLOAT voltage. In this phase, as
the batteries reach maximum capacity, they will tend to absorb current close to zero Ampere. This float phase will allow the
batteries to be on charge without the risk of overloading. The next step to the ABSORPTION phase occurs when the demand
for current goes over 20% of the maximum output value. With parallel-connected battery chargers, the threshold is the 20%
of the sum of the maximum output currents of the units connected in parallel.
14.1 (28.2) [Gel 14.4 (28.8)]
13.5 (27.0) [Gel 13.8 (27.6)]
18
2
AWG 22/24, impedance 100/150 ohm). The maximum total length of the data signal cable
TERMINATION DEACTIVATED
ON
1
1 2 3 4 5 6
ON
1
2
3 4 5
6
1
2
3
4
2
RCM 1620
Charging occurs in 3 phases:
(V)
BULK
ABSORPTION FLOAT
(I)
Imax
20% Imax
DIP-SWITCH
1
2
20
CAN device from 3 to 19
NEW CYCLE
TERMINATION ACTIVATED
ON
1 2 3 4 5 6 7 8
ON
ON
3
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
RDS 1540
TIME
TIME
SBC ADVANCED PLUS HI-POWER - REV004A
DIP-SWITCH
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