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ALARMS
Low Oil Pressure (Shutdown Alarm)
A five (5) second delay on start-up and eight (8) second delay
once the engine is running. This switch has normally closed
contacts that are held open by engine oil pressure during
operation. Should the oil pressure drop below the five (5) PSI
range, switch contacts close and the engine shuts down. The
unit should not be restarted until oil level is verified.
High Oil Temperature (Shutdown Alarm – Auto Reset)
A 10 second delay on start-up and one (1) second delay before
shutdown. Auto reset when the condition clears and restart the
engine if a valid start signal is still present.
This switch’s contacts close if the temperature should exceed
approximately 124° C (255° F), initiating an engine shutdown.
Once the oil temperature drops to a safe level the switch’s
contacts open again.
Over Crank (Shutdown Alarm)
This occurs if the engine has not started within the specified
crank cycle. (See Section 1.5 “Automatic Operation”)
Over Speed (Shutdown Alarm)
4320 RPM for three (3) seconds or 4500 RPM immediately.
This feature protects the generator from damage by shutting
it down if it happens to run faster than the preset limit. This
protection also prevents the generator from supplying an output
that could potentially damage appliances connected to the
generator circuit.
RPM Sensor Loss (Shutdown Alarm)
During cranking, if the controller does not see a valid RPM
signal within three (3) seconds, it will shut down and lock out
on RPM sensor loss. While engine is running, if RPM signal
is lost for two (2) seconds the controller will shut the engine
down, wait 15 seconds, then re-crank the engine. If no RPM
signal is detected within the first three (3) seconds of cranking,
the controller will shut the engine down and latch out on RPM
sensor loss. If the RPM signal is detected, the engine will start
and run normally. If the RPM signal is subsequently lost again,
the controller will try one more re-crank attempt before latching
out and displaying the RPM sensor failure message.
CLEAR ALARMS
Clear alarms by setting the AUTO/OFF/MANUAL switch to the
OFF position.
WARNINGS
Second Priority (Non-latching) Displayed on the control panel.
Warnings automatically clear when the monitored condition
goes away. Warnings cannot cause shutdowns.
Low Battery
The controller monitors battery voltage and illuminates an LED
warning if the battery voltage falls below 11.9 volts for one (1)
minute. Warning is automatically cleared if the battery voltage
rises above 12.4 volts. Battery voltage is not monitored during
the crank cycle.
PART 4
ENGINE/DC CONTROL
Section 4.2
Engine Protective Devices
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