Furuno BC 6158 User Manual

4.4 Battery charger(BC-6158)  
4.4 Battery charger (BC-6158)  
4.4.1 Connection of battery charger and battery monitor circuit  
Battery charger BC-6158 is controlled from the battery control panel of the console  
panel.  
BC-6158  
05P0607  
TB3  
BATT CH. SW  
AUTO  
OFF  
CHARGE  
4. BATT+  
5. BATT-  
3. (+)BATT OUT  
4. (-)BATT OUT  
6. CHARGE  
3. CHRG-L  
CHARGE  
EMG  
Lamp  
K1  
T1  
A
V
EMG LIGHT  
6. LAMP 2(NC)  
7. LAMP 1  
AC iN  
ON  
OFF  
REC  
IN USE  
MF/HF SSB  
1. 24V  
2. EMG L  
RC-1800T only  
60A  
Illuumination  
Lamp  
TB2  
TB1  
AC FAIL  
1. BATT IN+  
2. BATT IN-  
Battery  
24V Back-up  
24V Back-up  
SB-180  
Primary system  
5. 24V  
7. 0V  
Duplicate system  
24V  
Back-up  
24V OUT  
AC FAIL  
24V  
Back-up  
AC100/220V  
1. AC(U)  
2. AC(V)  
PR-850A  
PR-850AR(RC-1800T)  
PR-300  
1. (+)BATT OUT  
2. (-)BATT OUT  
AC100/220V  
AC100/220V  
Fig. 4.4.1 Connection of battery charger and battery monitor circuit  
The battery monitor circuit (05P0607) monitors battery voltage.  
If battery voltage drops to 22 V, [LOW] indicator comes on and the buzzer sounds.  
With “BATT CHARGER switch” set to “AUTO”, the charger starts charging the battery  
when the battery voltage drops to 24.5 to 25.0 V, and stops charging when the battery is  
charged by 28.0 to 28.5 V automatically. If the switch is set to “MANUAL”, the battery  
is charged in continuity. The signal to control charging is “3. CHARGE-L” signal which  
turns ON/OFF relay K1 on the AC power supply line of BC-6158.  
AC FAIL signal from PR-850A (AR), a contact signal of the relay is output when AC  
supply is turned “OFF” and switched to the battery.  
This signal is supplied to “2. EMG-L” of the battery monitor board to indicate “IN  
USE”. This signal is also supplied to FS-5000/2550/1562-25 and automatically reduces  
the transmission power to 60 to 70 W.  
Note) The “AUTO” position is provided to prevent over discharge of the battery.  
This “AUTO” position is not intended to use both the battery and AC/DC supplies  
at the same time for so called “floating operation”.  
4-12  
3.4 BC-6158  
3.4 BC-6158: Battery charger unit  
CR2  
R3/4  
C3  
(0.01ohms)  
Q1  
R1/2  
(0.5/50W)  
Rectifier  
(U2)  
S1: 60 degrees  
thermal sensor  
T1  
Rectifier  
(U1)  
05P0659 board  
Breaker: :30A  
(CP1)  
C1  
K1  
(Input rlay)  
Upper terminal:TB2  
Lower terminal:TB1  
TB3  
Fig. 3.4.1 BC-6158  
VR1  
VR2  
(Over voltage ADJ. VR.:  
Adjust to 28V)  
(Over current ADJ. VR.:  
Adjust to 20A)  
Q1  
05P0659  
R3/4  
(0.01ohms)  
S1: 60 degrees  
thermal sensor  
Fig. 3.4.2 BC-6158 left side  
3-12  

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