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Mitsubishi Electric MOTION CONTROLLERS Q172DCPU Programming Manual Page 45

Melsec q series motion controller.
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2 MULTIPLE CPU SYSTEM
Category
Type of error
System setting error
WDT error
Operation
Self-diagnosis error
disable errors
Other CPU DOWN error
Self-diagnosis error
Motion SFC error
Operation
Minor error
continuous
Major error
enable errors
Servo error
Servo program setting
error
(3) Operation at a Motion CPU error
Operations at a Motion CPU error are shown below.
Does not operate from the
beginning (does not run).
Varies depending on the error.
Stops at a CPU DOWN error.
Operation corresponding to
STOP (M2000 OFF). Depends on
the "Operation mode upon CPU
stop error" setting.
Operation continues when the
continuous error occurred.
Processing stops for each
program or axis instead of the
Motion CPU stopping all the
processing.
Operation
• All actual output PY points turn OFF.
No effect on other CPUs.
• All actual output PY points turn OFF.
Other CPUs may also stop depending on
the parameter setting.
• All actual output PY points turn OFF.
• 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.
2 - 8
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