
B-63494EN/02 9.DIAGNOSIS
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(2) Data when an alarm is issued
<1> General
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• For the first detected alarm related to dual check safety, the date
and time of alarm issue, alarm number, and message are
displayed.
• If no alarm is issued yet, "NO ALARM" is displayed, and "0" is
displayed for the other data items.
• The alarm display targets are:
SV410, SV411, SV470-SV498
SP755/765/775/785-SP757/767/777/787
Alarm 69, Alarm 72, Alarm 76, Alarm 77, Alarm 78
• The alarms related to display safety function error causes are:
SV483, SV484, SV490, SP755/765/775/785
• PRM, PWO, and so on display safety function error causes.
FM1 : It was detected that part of the safety function was not
executed. (Flow monitoring alarm).
FM2 : The other CPU detected that part of the safety function
was not executed. (Flow monitoring alarm)
CC1 : The result of a safety function check does not match the
result of a safety function check made by the other CPU.
(Cross-check alarm)
CC2 : The result of a safety function check does not match the
result of a safety function check made by the other CPU.
(Cross-check alarm)
CPU : An error occurred in a CPU self-test.
RAM : An error occurred in a RAM test.
PWO : An error occurred in a self-test at power-on time.
PRM : An error occurred in safety parameter transfer.
• DATA1-4 indicate flow counters and parameter numbers. (The
display data depends on the alarm.)
• The alarms related to the display of DATA1-4 are:
SV488, SV489, SV490, SV497, SP755, Spindle alarm 76
When spindle alarm 76 is issued, "-" is displayed if the spindle
does not support the diagnosis screen.
Screen layout