Yaskawa i80M Maintenance Manual - Manual (Page 112)

4.3 TROUBLESHOOTING WITHOUT ALARM CODES (Cent’d)
4.3.2 SOLUTION TO ERRORS DETECTED IN SELF-DIAGNOSIS
Table 4.32 to Errors Detected
Cause of Trouble Check Method
Error identified by
self-diagnosis ● Both diagnostic items passed and the
diagnostic item leading up to the error
are displayed and the NC unit stops.
CPU cannot function normally and this is
a major failure. The main system shuts
off the servo power, but, depress the emer-
gency stop and power OFF buttons to
check for proper AC input voltage and
ensure power is OFF.
●
Solution
Record the diagnostic
item leading up to NC
unit stop, turn on power
again and contact your
YASKAWA representative.
Remove any noise source
near the NC unit. Turn
on the main power under
emergency stop conditions.
Contact your YASKAWA
representative immediate-
ly if it is “CPU ERROR”.
If normal, start operation
after ensuring correct
parameters, settings,
offsets and programs.
4.3.2.1 SELF-DIAGNOSIS FUNCTIONS
Self-diagnosis functions are:
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Memory Check
●
CMOS check
●
ROM check
●
RAM check
System Consistency Check
Operation g by Software
Operation Monitoring by Hardware
Division Error Detection
LED Display
Processing Program Area, Initialization
Expanded Memory Consistency Check
Axis Configuration Parameter Consistency Check
(10) Overheat Detection
(11 ) Battery Alarm Detection
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