INSTALLATION
16
June 2010 / M-SC6/8/10 - 3000RPM / EN
One of these options is to monitor a second battery (not
being the starter battery) to start the generator
automatically when the voltage of this battery drops below
a certain setting.
Other names for this second battery are “auxiliary battery”,
“service battery”, ”users battery” or “consumers battery”.
We will refer to this battery as “the second battery”(BAT2).
In some menus the starter battery could be indicated as
“the first battery” (BAT1).
A sense wire to monitor the second battery should be
connected (attention polarity!) to the connector on the
back of the remote panel. Refer to fig. 17. The sense wires
must be connected directly on the second battery before a
main switch and be protected by a 3 Amps fuse.
(Monitoring the generator starter battery does not require
an extra sense connection)
Settings
When one want to apply other settings than the factory
settings refer to the DDC users manual, especially to the
APPENDIX.
2 STARTER
BATTERY
For starting, the Whisper generator requires a 12V starter
battery with the following capacity:
Model
Minimum capacity
M-SC6 – 3000 rpm
60 Ah
M-SC8 – 3000 rpm
60 Ah
M-SC10 – 3000 rpm
60 Ah
The generating set can be connected with the main engine
battery or have its own battery.
We strongly recommend the use of a separate battery for
the generating set and to keep the wiring system for the
propulsion engine and the domestic DC supply system
completely separate and individually connected to
separate batteries.
Fig. 21 Starter battery
However, the negative of all the batteries on the vessel
should be interconnected (when on earth) to avoid
difference in the voltage level of the earth on different
places causing trouble to electronic devices which might
be in the system.
The above recommendation is not valid for ships having
the starter battery of the propulsion engine or other
auxiliary equipment positive grounded. When this is the
case an expert should be consulted.
A battery switch may be used.
The starter battery is charged by the standard internal
charger in the alternator. An additional battery charger will
help to keep the battery in good condition when the
generating set is not used. A battery charger is not
included in the standard supply. A high efficiency battery
charging unit can be ordered from Whisper Power which is
able to charge both the ship’s main battery and the starter
battery. Also a small charger can be used to charge the
starter battery only, such as the IVO SMART 12/10. A
battery switch and a charger are included in the battery
installation kit, art. no. 50230210 (70Ah).
