Generac Power Systems 7kW Air-cooled, Руководство пользователя

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Figure 3.4 – Open Side Compartment
3.6 PROTECTION SYSTEMS
3.6.1 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 (Figure 3.5) 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 (Figure 3.5) close if the temperature should
exceed approximately 124° C (255° F), initiating an engine shut-
down. 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 "Cranking" section.)
Figure 3.5 – Low Oil Pressure and
High Temperature Switches
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.
Contact the nearest Dealer if this failure occurs.
RPM Sensor Loss (Shutdown Alarm)
During cranking, if the Control Board 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 Control Board 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 Control Board
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 Control Board 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.
3.6.2 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 Control Board 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.
Operation