Generator Control Panel; Remote Control Panel; Technical Information; Alternator - Mastervolt whisper 6 User Manual

INFORMATION

2.4.2 Generator control panel

1 2
10 A 3 A
External Fuel Pump Digital Diesel Control
Protection-fuse Protection-fuse 3 A
10 A Remove fuse
during maintenance
Fig.. 3: Control panel.
1 Fuse 10A;
2 Fuse 3A;
3 Start/stop button.
AC-1
AC-2
heat start fuel fail
Fig.. 4: Digital Diesel Control unit
6
7
Fig. 5: Digital Diesel remote control panel.

2.4.3 Remote control panel

1 Start button;
2 Stop button;
3 Select button;
4 Set button;
5 Failure lamp;
6 Generator load indicator.
7 Display
10
3
Whisper Generator Control
Press for start/stop
5 1 2
4 3
2.5

TECHNICAL INFORMATION

2.5.1 AC alternator
The single phase alternator is directly coupled, one bea-
ring, brushless, rotating field design, two pole (3600
RPM) and self regulating.
Residual magnetism causes a small voltage over the sta-
tor windings and allows a current to flow in the windings,
which is magnified because of the feed back effect be-
tween rotor and stator. The field windings in the rotor are
short-circuited over a diode to rectify the current. A capa-
citor over an additional winding in the stator which is in
an angle with the power-winding keeps the voltage stable
within 5 % at the specified rpm and provides voltage fall
off with speed, preventing over-excitation at low engine
speeds and softening the effect of load switching to
relieve the burden on the engine.
Further technical data on the design of the alternator can
be found in drawings and diagrams in this manual.

2.5.2 Engine

The Whisper 6/8 generating set is based on the
Mitsubishi L2E 2 cylinder diesel engine. The Whisper 12
on the L3E 3 cylinder. The engine is indirectly injected.
The engine is water cooled and the cooling liquid is
cooled by a heat exchanger and raw water. The heat
exchanger and all other parts which are in direct contact
with the raw (sea) water are made of seawater resistant
material like naval brass and gunmetal.
The engine has been specially adapted for the Mastervolt
application and is very different from the standard engine
as supplied for industrial applications! The engine fulfills
EPA emission standards and is certified and labeled as
such.

2.5.3 Digital Diesel Control system

The standard electrical engine control system is 12 Volt
negative earth, non earth return is available as optional.
Check your identification data to determine which system
is applied. The system is designed according to the
"energise to run" system. The Digital Diesel Control is a
very advanced microprocessor based full automatic
system. Besides automatic start the system offers many
monitoring options. Refer to the separate Digital Diesel
Control users manual.
The microprocessor unit is located on top of the

alternator.

April 2004 / WHISPER 6/8/12 / U.S.A.EDITION