Armstrong World Industries A50CU - Manual (Page 21)

AR-EXP-CUMMINS-07-00 OWNERS MANUAL
It is possible to manually scroll to display the different in-
struments by repeatedly operating the scroll button. Once
selected the instrument will remain on the LCD display until
the user selects a different instrument or after a period of
inactivity the module will revert to the initial display (Hz/
RPM).
Instrument Page Order:-
• Frequency / RPM
• AC Voltage Line-Neutral (<<<Not Shown on 3 phase 3
wire (Delta) version of the module)
• AC Voltage Line-Line
• AC Line Current
• Oil Pressure
• Coolant temperature
• Engine Hours Run
 DC Battery Voltage
Pressing the button again will scroll through each
individual instrument eventually returning to the
original instrument displayed.
NOTE:-Once selected the instrument will remain on the LCD
display until the user selects a different instrument or after
a period of inactivity the module will revert to the initial
display.
Indicators
COMMON ALARM LCD indicators
These indicate when an alarm condition is present. The
Alarm icons or LEDs will detail the exact nature of the
alarm. (warning) or (shutdown)
USER CONFIGURABLE LCD INDICATORS
These LCD‘s can be configured by the user to indicate any
on of the different functions based around the following:
 WARNINGS and SHUTDOWNS
Specific indication of a particular warning or shutdown con-
dition, backed up by LCD indication (!)- Such as Low Oil
Pressure
Shutdown, Low Coolant level, etc.
 STATUS INDICATIONS
Indication of specific functions or sequences derived from
the modules operating state - Such as Safety On, Pre-
heating, Generator Available, etc.
Controls
This button places the module into its Stop/reset mode.
This will clear any alarm conditions for which the triggering
criteria have been removed. If the engine is running and
this position is selected, the module will automatically in-
struct the changeover device to unload the generator (‘Load
transfer’ becomes inactive (if used)). The fuel supply will be
removed and engine will be brought to a standstill. Should a
remote start signal be present while operating in this mode,
a remote start will not occur.
Manual
This mode is used to allow manual control of the generator
functions. Once in Manual mode the module will respond to
the start (I) button and start the engine and run off load. If
the engine is running off-load in the Manual mode and ei-
ther remote start signal becomes present or the mains sup-
ply fails, the module will automatically instruct the change-
over device to place the generator on load (‘Load transfer’
becomes active (if used)). Should the remote start signal
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