MITSUBISHI ELECTRIC MOTION CONTROLLERS Q172DCPU - Manual (Page 45)

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2 MULTIPLE CPU SYSTEM
(3) Operation at a Motion CPU error
Operations at a Motion CPU error are shown below.
Category Type of error Operation Remark
System setting error
Does not operate from the
beginning (does not run). • All actual output PY points turn OFF.
No effect on other CPUs.
WDT error Varies depending on the error.
Self-diagnosis error Stops at a CPU DOWN error.
• All actual output PY points turn OFF.
Other CPUs may also stop depending on
the parameter setting.
Operation
disable errors
Other CPU DOWN error
Operation corresponding to
STOP (M2000 OFF). Depends on
the "Operation mode upon CPU
stop error" setting.
• All actual output PY points turn OFF.
Self-diagnosis error
Operation continues when the
continuous error occurred.
Motion SFC error
Minor error
Major error
Servo error
Operation
continuous
enable errors
Servo program setting
error
Processing stops for each
program or axis instead of the
Motion CPU stopping all the
processing.
• Only the applicable program stops (the
program may continue depending on the
type of error).
• Actual output PY retains output.
• No effect on other CPUs.