Northern Lights OWN-ADV, Installation And User Manual

Page: 37 / 91

OWN-ADV 01/12
The WaveNet has a safety feature where a locked rotor condition will be detected. To disable this
feature set the
Crank Oil Pressure
in the engine logic menu to 0. The Crank Oil Pressure is the oil
pressure usually seen while the engine is cranking.
During the cranking, if the oil pressure is below the
Crank Oil Pressure
parameter (engine logic
menu) and if the engine speed and AC frequency are both 0 the crank time is shortened to 3s
(including the time passed in cranking). If the engine/generator has not reached the crank
disconnect speed, frequency or the Crank Oil Pressure at the end of the 3s the WaveNet will stop
cranking and go into a Locked Rotor Failure.
This failure prevents damage to the generator for something is preventing the engine crankshaft (or
generator rotor since it is connected to the crankshaft) from rotating.
There are either 200mA digital outputs (all switched to ground) and one 40A digital output (dry constant),
the Extra output, all of which are con
fi gurable. Each feature (listed in Table 12) is permitted to be set to
only one digital output.
Table 12: Digital Output Selections
Name Description
Warm-Up This sets up the output to be controlled by the Warm-up feature. See
Section
5.4.1
for more details. The Warm-up time is set in the engine logic menu.
This is an active low output (i.e. the output remains off during warm-up and
turns on after warm-up is
fi nished). The output always remains off when the
controller is not in the RUN mode.
Energize to Stop
(ETS) This allows the Energize to Stop feature to control an output. The time
duration is set in the engine logic menu. See
Section 5.4.2
for
more details.
Preheat (glow plug) This allows the Preheat, Midheat, and Postheat features in the engine
logic menu to control the output. The Preheat (glow plug) time is set in the
engine logic menu. See
Section 5.4.1
for more details.
Cool-Down This allows the Cool Down feature to control the output. The Cool Down
duration is set in the engine logic menu. See
section 5.4.2
for more details.
Over Crank This turns on the digital output when the Over Crank Failure is activated.
See
section 5.4.1
for more details. The number of crank attempts is set in
the engine logic menu.
5.4.1.1 LOCKED ROTOR
When the Stop key is pressed while the engine/generator is running and if the
Cool-down
submenu
is set to a value greater than 0 seconds the generator will go into Cool-down mode where an output
is turned on (one of the digital outputs must be set to Cool-down). Once the Cool-down time is
expired, the fuel relay is turned off and the controller enters the OFF state. If the
ETS On Duration
is set to a value greater than 0 seconds an output will be turned on for the time set (One of the digital
outputs must be set to “Energize-to-Stop”) by the ETS On Duration submenu.
5.4.2 SHUTDOWN SEQUENCE
35
5.5 DIGITAL OUTPUT SETUP