Internal Components - Westerbeke 8.0KW - 60Hz EDT Operator's Manual

DIGITAL CONTROL BOX
FREQUENCY FAULT
Frequency is displayed on the LCD display screen while the
engine is running in 'RPMandfrequency (hertz).
The ECU is receiving a low AC voltage signal and hertz
signal from the MPU which is positioned on the bellhousing
over the flywheel ring gear teeth. The ECU interprets this
signal as both RPM and hertz.
. .
".
shouid this signal vary approximately 2% eit\ler up or down,
a frequency fault shut down will occur, initiated by the ECU.
The red failure LED on the display panel. will illuminate, the
frequency LED will tum from green to amber and the LCD
display screen will show the fault text "overspeed".
NOTE:
If the unit shuts down for an underspeed condition, the
same fault "overspeed" will show on the screen but the
frequency LED will BliNK.
WHEN CHANGING THE GENERATORS
. FREQUENCY (50160 HZ) SWITCH #1
ON THE CONTROL PANEL ECU
BOARD MUST BE SWITCHED:
... ON FOR 50 HZ AND OFF FOR 60 HZ.
CONTROL BOX
INTERNAL
CoM!PoNiENTS
GENERATOR FREQUENCY ADJUSTMENT (HERTZ)
CAUTION:
When changing the generator frequency setting on
the ECU, tum off the 20 amp DC circuit breaker on the control
box. Tum it back on tifter the setting has been changed
NOTE:
If
the unit shuts down for an underspeed condition, the
same fault "overspeed" will show on the screen but the
. frequency LED will BliNK.
1. T\lm the DC breaker on the control panel to the OFF
position.
2. Open the cover of the control box and view the ECU
(EI.,tronic Control Unit).
3. Locate the #1 dipswitch on the ECU and move it to the
.position that corresponds to the Herl2 operation desired).
See the illustration below showing the ECU in the
control box.
4. Replace the control box cover, tum the DC breaker ON
and start the unit. Monitor the frequency that the
engine/generator is operating is operating at ihe correct
fn,quency.
~~~;AMPDC
BREAKER
NOTE: DURING OPERATION THE COLOR
OF THE LCD DISPLAY MAY VARY.
CAUSED BY HEAT. THIS IS NORMAL
AND NO CAUSE FOR CONCERN.
CAUTION (WESTERLINK
or
NMEA-2DDO): The electronic components in the Digital Diesels draw a very small amount of amperage
(milli-amps)jrom
the
generator:S starting battery
when.th~.unit
is in a static state. This maybe as much as 50 milli-ampsfor the system ECU and SO milli-ampsjor each display.
This can be as much as 72 amp-hours in a months. time with no
g~nerator
use. It is not necessary to be concerned with this slight amperage draw during
normal.seasonal use. However.
if
the generator set is not to be usedfor a number ojmonths, such as winter storage,
it
is best to disconnect the DC power
to the generator with a NMEA-2009 system or shut off the DC breaker qn the generator's control boxfor a WESTERLlNK system. .
NOTE: Keep in mind that the Westerbeke generator maybe the
DC power supply for the vessel's NMEA-2000 network.
~ WESTERBEKE
Engines & Generators
7