Metacentre CX Box
Page 39
6.11 Sensor Fault Levels.
If the set Alarm (Warning) level for an
optional sensor is exceeded the CX Box will
display an Alarm indication and a unique
Alarm code. The Alarm condition is transmitted
to the management unit; the compressor
remains ‘Available’ and will continue to
operate.
If the set Trip (Shutdown) level for an
optional sensor is exceeded the CX Box will
unload the compressor and shutdown.
The CX Box will display a Trip indication and a
unique Trip code. The Trip condition is
transmitted to the management unit and the
compressor will become ‘Unavailable’.
Fault Codes
6.12 Sensor
Fault
If a sensor fault is detected (for sensors that
have been enabled) the CX Box will unload
the compressor and indicate a compressor
‘Shutdown Trip’ condition together with a
unique fault code. The associated sensor
display will show “- - - -“ dashes.
For a 20mA type optional sensor that is set
for 0mA minimum signal level a sensor open
circuit, or no signal, fault condition cannot
detected.
Fault Codes
6.13 Fault Input (Options)
If an Alarm (Warning) input is activated
the CX Box will display an Alarm indication
and a unique Alarm code. The Alarm condition
is transmitted to the management unit; the
compressor remains ‘Available’ and will
continue to operate.
If the Trip (Shutdown) input is activated
the CX Box will unload the compressor and
shutdown.
The CX Box will display a Trip indication and a
unique Trip code. The Trip condition is
transmitted to the management unit and the
compressor will become ‘Unavailable’.
Fault Codes
