Flexible Sensor x (pre) alarm Indicates that the respective flexible sensor alarm is active.
Fuel Pump Control
IEEE 37.2 – 71 level switch
Becomes active when the Fuel level falls
below the Fuel Pump Control ON setting
and is normally used to transfer fuel from
the bulk tank to the day tank.
If the output is already active it will
become inactive when the Fuel
level is above the Fuel Pump
Control OFF settings.
Fuel Relay Becomes active when the controller
requires the governor/fuel system to be
active.
Becomes inactive whenever the
set should be stopped, including
between crank attempts, upon
controlled stops and upon fault
shutdowns.
Fuel Usage Alarm Becomes active when the amount of fuel used over a set time period exceeds
the set value.
Gas Choke On Becomes active during starting for the
duration of the Gas Choke timer.
Normally used to choke a gas engine.
Inactive at all other times
Gas Ignition Becomes active during starting.
Becomes inactive a configurable
amount of time after the fuel relay
becomes inactive. This is the Gas
ignition off timer.
Generator at Rest
This output indicates that the generator is not running.
Generator Available Becomes active when the generator is
available to take load.
Inactive when
• Loading voltage and loading
frequency have not been
reached
• After electrical trip alarm
• During the starting sequence
before the end of the warming
timer.
Generator Closed Aux
Active when the Generator closed auxiliary input is active
Generator Excite
IEEE 37.2 – 31 separate excitation
device
Used to control the excitation of the main
alternator (AC).
Becomes inactive when the set is
stopped.
Generator Failed to Close
IEEE 37.2 - 48 Incomplete Sequence
Relay
This output source is intended to be used to indicate a failure of the generator
contactor or breaker. It can only be used if the module is configured to use
‘Generator Closed Auxiliary’ feedback.
Generator Failed to Open
IEEE 37.2 - 48 Incomplete Sequence
Relay
This output source is intended to be used to indicate a failure of the generator
contactor or breaker. It can only be used if the module is configured to use
‘Generator Closed Auxiliary’ feedback.
Generator Load Inhibited This output indicates that a digital input that has been configured as
‘Generator Load Inhibit’ is active. Refer to the ‘Edit Inputs’ section of this
manual for details.
Generator High Voltage Alarm
IEEE 37.2 – 59AC over voltage relay
Active when the generator voltage exceeds the High Voltage Shutdown
setting
Generator High Voltage Pre-Alarm
IEEE 37.2 – 59AC over voltage relay
Active when the generator voltage exceeds the High Voltage Warning setting
Generator Loading Frequency Not
Reached
Indicates that the generator frequency has not reached the configured loading
frequency during the starting process.
Generator Loading Voltage Not
Reached
Indicates that the generator voltage has not reached the configured loading
voltage during the starting process.
Generator Low Voltage Alarm
IEEE 37.2 – 27AC under voltage relay
Active when the generator voltage falls
below the Low Voltage Alarm
Inactive when
• The set is stopped
• During starting sequence
before the safety delay time
has expired.
Generator Low Voltage Pre-Alarm
IEEE 37.2 – 27AC under voltage relay
Active when the generator voltage falls
below the Low Voltage Pre-Alarm
setting
Inactive when
• The set is stopped
• During starting sequence
before the safety delay time
has expired.
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