Functional Description Powerwizard Control Systems; Control System Options And Upgrades - FG Wilson OLYMPIAN 1001 Series Manual

When low oil pressure is sensed, the "LOW OIL
PRESSURE" fault lamp illuminates and the generating set
is automatically shut down. Reset is effected by turning the
Control Switch to "STOP".
A separate overspeed module P.C.B. continually monitors
the generating set frequency. When the frequency
exceeds the set point the generating set will be shutdown
and the "OVERSPEED" fault lamp illuminated. The
"OVERSPEED" fault lamp will also illuminate when the
Emergency Stop Pushbutton has been pressed, even
though an overspeed has not occurred.
The Low Battery Voltage alarm, which is fitted as standard
on the 4001 and 4001E Series Control Systems, detects
low battery voltage.
Four additional Alarm circuits are provided on the 4001E
Series Control System: Approaching Low Oil Pressure,
Approaching High Engine Temperature, Not in Auto Mode
and Battery Charger Failure.
Other Shutdown and Alarm circuits may be fitted on to the
control panel. The possible Shutdown circuits (not all
available on all sets) include shutdown on:
High Lube Oil Temperature
Low Coolant Level
Low Fuel Level
Underspeed
Overvoltage
Undervoltage
Earth Fault
Earth Leakage
Combined Over/Under Voltage
The additional possible Alarm circuits (not all available on
all sets) include alarms for:
Low Fuel Level
Low Coolant Temperature
4.4

Functional Description PowerWizard Control Systems

The PowerWizard Control Systems provide for automatic
starting and stopping of the generating set from a remote
signal as well as manual starting and stopping. This
makes it appropriate for standby generating systems.
Protection is provided by the control system against high
engine temperature, low oil pressure, fail to start and
overspeed.
4.4.1 Function (PowerWizard): Section 5 of this manual
provides detailed guidance and checklists for the operation
of the generating set. This section provides a more
detailed description of the functions of the control system
during operation.
When the RUN key is pressed or a remote start signal is
received with the module in AUTO mode, the control
system will initiate its automatic start sequence.
If the engine fails to fire after 3 start attempts then the
module will go into the shut down mode as it has detected
a FAIL TO START. Refer to a qualified generating set
technician to determine the cause of failure to start. Start
will be inhibited until the FAIL TO START shutdown event
has been reset.
Manually the generating set can be stopped at any time by
pressing the STOP key. A COOLDOWN time will then
commence before the set will stop. The set will also
automatically stop when the remote start signal is
removed. Again, a COOLDOWN time will then commence
before the set will stop. The set will immediately stop by
pressing the Emergency Stop Pushbutton.
WARNING:
!
If at any time the generating set stops because of
a fault, the fault should be rectified before trying
to restart the generator.
4.4.2 Protective Circuits (PowerWizard): When high
engine temperature is sensed, the generating set is
automatically shut down. The RED SHUTDOWN LIGHT
will begin to flash until the ACKNOWLEGE key is pressed.
The RED SHUTDOWN LIGHT will stay on until the fault
has been resolved on the generating set & the HIGH
ENGINE TEMPERATURE shutdown event has been reset.
When low oil pressure is sensed, the generating set is
automatically shut down. The RED SHUTDOWN LIGHT
will begin to flash until the ACKNOWLEGE key is pressed.
The RED SHUTDOWN LIGHT will stay on until the fault
has been resolved on the generating set & the LOW OIL
PRESSURE shutdown event has been reset.
Engine speed is monitored by the speed sensor in the fly
wheel housing of the generating set. When overspeed is
sensed, the generating set is automatically shut down.
The RED SHUTDOWN LIGHT will begin to flash until the
ACKNOWLEGE key is pressed. The RED SHUTDOWN
LIGHT will stay on until the fault has been resolved on the
generating set & the OVERSPEED shutdown event has
been reset.
The additional possible Shutdown circuits (not all available
on all sets) include shutdown on:
Low Coolant Level (on water cooled engines)
Low Fuel Level
The additional possible Alarm circuits (not all available on
all sets) include alarms for:
Low Coolant Temperature (on water cooled engines)
Low Fuel Level
4.5

Control System Options and Upgrades

A large variety of options may be fitted to customise the
control system to a specific installation. The following
sections cover the use and operation of some of these
options.
4.5.1 Battery Trickle Chargers: These chargers are
designed to ensure that the starter batteries maintain their
charge even if the generating set is not operated for long
periods.
Control switches for the chargers are not normally fitted to
prevent inadvertent switching off of the charger. However,
as additional options, an "ON"/"OFF" switch and a Battery
Charger Boost Control may be fitted. The Boost Control
overrides the automatic control mechanism of the charger
that would normally reduce charging level as the battery
becomes charged. This can allow faster charging of the
battery. However, care must be taken to only use the
boost control for a short time to avoid overcharging the
battery and/or boiling the battery dry.
As an option, a battery charger ammeter may be fitted to
the control panel in order for the operator to monitor the
functioning of the battery charger.
4.5.2 Heaters: In addition to conventional space heaters
that are useful in keeping the generating set warm and dry
in cold or humid environments, three types of heater may
be fitted on the generating set.
Immersion type heaters (engine heaters) may be fitted in
the engine coolant system to ensure that the engine is
easy to start and able to take load more quickly.
Alternator anti-condensation heaters (alternator heaters)
may be fitted to the alternator stator winding to keep them
dry in humid conditions.
Panel anti-condensation heaters (panel heaters) may be
fitted in the control panel to keep moisture levels down.
Control switches are not normally fitted but may be fitted
as an additional option. With or without control switches,
the heaters are automatically disconnected on engine
start-up.
4.5.3 Electric Fuel Transfer Pumps: Fuel transfer
pumps are required when fuel must be transferred from a
bulk storage tank to the generating set day tank.
The controls consist of two illuminated pushbuttons on the
control panel door or separte box under the panel. The
red button is a combined trip lamp and stop button. The
green button is a run lamp and manual start pushbutton.
To operate the pump manually, ensure the red pushbutton
is in the "ON" position (pulled out). Press and hold the
green pushbutton to manually run the pump. The pump
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