Alarms
880 Operation Manual Issue 7 EMC INDUSTRIAL GROUP LTD Page 16 of 25
SMALL DISPLAY Shows
point in program where over-
load detected (eg )
LARGE DISPLAY
Shows current kiln tempera-
ture
CONTROLLER STATE
Controller is paused,
Heat is OFF
CAUSE Kiln temperature is greater than the Maximum Hold Temperature setting. Possi-
bly due to welded contacts on the kiln’s contactor
ALARM
NUMBER
Press alarm
key to view
REMEDY Check and repair kiln contactor. Press RUN STOP once to continue firing, or
twice to cancel firing.
SMALL DISPLAY Shows
point in program where loss
of control detected (eg )
LARGE DISPLAY
Shows current kiln tempera-
ture
CONTROLLER STATE
Controller is paused,
Heat is OFF
CAUSE Kiln temperature has been higher than the Control Temperature for more than
1 hour
1
and is rising at more than 20°C per hour. Possibly due to welded contacts on the
kiln’s contactor.
ALARM
NUMBER
Press alarm
key to view
REMEDY Check and repair kiln contactor. Press RUN STOP once to continue firing, or
twice to cancel firing.
SMALL DISPLAY Shows
point in program where loss
of control detected (eg )
LARGE DISPLAY
Shows current kiln tempera-
ture
CONTROLLER STATE
Controller is paused,
Heat is OFF
CAUSE Kiln temperature has been higher than the Control Temperature for more than
1 hour
1
and is not falling and is still rising. Possibly due to welded contacts on the kiln’s
contactor.
ALARM
NUMBER
Press alarm
key to view
REMEDY Check and repair kiln contactor. Press RUN STOP once to continue firing, or
twice to cancel firing.
SMALL DISPLAY Shows
point in program where loss
of control detected (eg )
LARGE DISPLAY
Shows current kiln tempera-
ture
CONTROLLER STATE
Controller is paused,
Heat is OFF
CAUSE Kiln temperature has been lower than the Control Temperature for more than
1 hour
1
and is rising at less than 20°C per hour. Due to weak elements, low mains volt-
age, probe not fully inserted into the kiln or kiln overloaded.
ALARM
NUMBER
Press alarm
key to view
REMEDY Check and replace faulty elements, check mains voltage, push probe fully into
the kiln, remove some work from the kiln. Press RUN STOP once to continue firing, or
twice to cancel firing.
SMALL DISPLAY Shows
point in program where loss
of control detected (eg )
LARGE DISPLAY
Shows current kiln tempera-
ture
CONTROLLER STATE
Controller is paused,
Heat is OFF
CAUSE Kiln temperature has been lower than the Control Temperature for more than
1 hour
1
and is falling at more than 20°C per hour. Due to failed elements, low mains volt-
age.
ALARM
NUMBER
Press alarm
key to view
REMEDY Check and replace faulty elements, check mains voltage. Press RUN STOP
once to continue firing, or twice to cancel firing.
1
This time period can be altered or the alarm turned off. See Loss of Control Timeout on page 24.
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