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TP-6200 10/12 37Section 2 Operation
When the generator set frequency drops to less than
59 Hz on a 60 Hz system or 49 Hz on a 50 Hz system for
more than 5 seconds, the local display shows load shed
under freq. When the load shed alarm sounds and
resets more than twice in 1 minute, the load shed
warning lamp latches and remains on until the generator
set shuts down.
Low Battery Voltage. The lamp illuminates when the
battery voltage drops below a preset level for more than
10 seconds. The local display shows low battery
voltage. See Figure 2-2 for low battery voltage
specifications.
Engine Electrical
System Voltage
Low Battery
Voltage Range
Low Battery Voltage
Default Setting
12 10--12.5 12
24 20--25 24
Figure 2-2 Low Battery Voltage Specs
The low battery voltage feature monitors the battery and
battery charging system in the generator set operating
and off modes. The controller logic inhibits the low
battery voltage warning during the crank cycle.
Low Coolant Temperature. The lamp illuminates and
the alarm horn sounds when the engine coolant
temperature is low. The local display shows low coolant
temp.
Low Fuel (Level or Pressure) Warning. The lamp
illuminates and the alarm horn sounds when the fuel
tank level on gasoline or diesel models approaches
empty or low fuel pressure on gaseous fueled models
occurs. This fault requires an optional low fuel switch for
the lamp to function. The local display shows low fuel
warning.
(Low) Oil Pressure Warning. The lamp illuminates and
the alarm horn sounds when the engine oil pressure
approaches the shutdown range. The local display
shows oil press warning.
Master (Switch) Not in Auto. The lamp illuminates and
the alarm horn sounds when the generator set master
switch is in the RUN or OFF/RESET position. The local
display shows master not in auto. The Not in Auto lamp
will also illuminate.
NFPA 110 Fault. The lamp illuminates and the alarm
horn sounds when NFPA 110 faults signal the controller.
The local display shows the respective fault message.
The NFPA 110 faults (W
arning/Shutdown) include:
D Air damper indicator (Factory-Reserved D20) (S)
D Battery charger fault (Factory-Reserved D01) (W)
D EPS supplying load (W)
D High battery voltage (W)
D High coolant temperature (W)
D High coolant temperature (S)
D Low battery voltage (W)
D Low coolant level (Factory-Reserved D14) (S)
D Low coolant temperature
(Factory-Reserved D03) (W)
D Low fuel (level or pressure)
(Factory-Reserved D02) (W)
D Low oil pressure (W)
D Low oil pressure (S)
D Master switch not in auto (W)
D Overcrank (S)
D Overspeed (S)
No Air Temperature Signal. The lamp illuminates and
the alarm horn sounds when the air temperature sender
circuit is open. The local display shows no air temp
signal. (Waukesha-powered models only. )
No Oil Temperature Signal. The lamp illuminates and
the alarm horn sounds when the oil temperature sender
circuit is open. The local display shows no oil temp
signal. (Waukesha-powered models only. )
Oil Temperature. The lamp illuminates and the alarm
horn sounds when oil temperature approaches the
shutdown range. The local display shows oil temp.
(W aukesha-powered models only. )
Overcurrent. The lamp illuminates and the alarm horn
sounds when the generator set supplies more than
110% of the rated standby output current for more than
10 seconds. The local display shows overcurrent.
Speed Sensor Fault. The lamp illuminates and the
alarm horn sounds when the speed signal is absent for
one second while the generator set runs. The local
display shows speed sensor fault. This warning lamp
remains on until the operator places the master switch in
the OFF/RESET position.
Weak Battery. The lamp illuminates when the battery
voltage falls below 60% of the nominal voltage (12 VDC
or 24 VDC) for more than 2 seconds during the crank
cycle. The local display shows weak battery.