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.
05P0607
4. BATT+
5. BATT-
3. CHRG-L
6. LAMP 2(NC)
7. LAMP 1
24V OUT
PR-850A
PR-850AR
AC100/220V AC100/220V
CHARGE
1. 24V 2. EMG L
24V
AC FAIL
Back-up
(RC-1800T)
IN USE
BATT CH. SW
AUTO
OFF
CHARGE
EMG LIGHT
ON
OFF
MF/HF SSB
AC FAIL
24V Back-up
24V Back-up
24V
Back-up
PR-300
Primary system
Duplicate system
Battery
RC-1800T only
60A
SB-180
AC100/220V
BC-6158
3. (+)BATT OUT
4. (-)BATT OUT
6. CHARGE
A
V
TB2
TB1
AC iN
1. BATT IN+
2. BATT IN-
1. AC(U)
2. AC(V)
K1
REC
1. (+)BATT OUT
2. (-)BATT OUT
T1
5. 24V
7. 0V
TB3
EMG
Lamp
Illuumination
Lamp
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” positi on is no t in ten ded t o use b oth th e b att ery and AC/DC supplies
at the same time for so called “floating operation”.
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4.4 Battery charger(BC-6158)
２６．７ｖ
26.7v
4.4.3 Battery charger (BC-6158)
Battery charger BC-6158 can charge clad type or pasteboard vent type batteries of up to
300 AH. It is a constant voltage/current charger which supplies a constant voltage of 28
V and a constant charging current of 20 A (30 A).
V
28V
Fig. 4.4.4
20A(30A)
The power supply to the charger is connected to a tap of transformer T1 which is
selected according to the supply voltage.
The maximum charging current differs according to the capacity of the battery to be
charged. For example, for a battery of 200 AH the maximum charging current is 20 A
and for a 300 AH battery the current is 30 A. VR2 adjusts the maximum current to 20 A
or 30 A. VR1 adjusts the output voltage of the charger to 28 V. The thermal sensor is
mounted on the heat radiator of the charger, and it operates when the sensor detects a
temperature of 60 degrees.
FAN
I
TB 1
AC IN
(1, 2)
TB 3
24V 5
CHARGE 6
0V 7
T1
110V
100V
0V
110V
100V
K1
0V
Full wave rectifier
U1/U2
Power conrol
AMP.
FM1
Q1
Q4/Q5
Over current
detector
Voltage error
detctor
S1
6o degrees
thermal sensor
R1,2,3,4
Q2
CR3/Q3
VR2
VR1
CR2
30A
Breaker
CP1
TB 2
1 BATT+
2 BATT-
TB 3
1 BATT+
2 BATT3 BATT+
4 BATT-
VR2
(Over current ADJ. VR:
Adjust to 20A)
05P0659 board
Fig. 4.4.5 BC-6518 block diagram
VR1
(Over voltage ADJ. VR:
Adjust to 28V)
S1: 60 degrees
thermal sensor
Fig. 4.4.6 BC-6158 left side
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