Mitsubishi Electric MELSEC-L LD75P User Manual page 666

Classification Error
of errors code
Positioning Outside range of the
555
operation number of pitches
800 Hold error
801 Flash ROM write error
I/F
Flash ROM sum check
802
error
803 PLC CPU error
664
Error name Operation status at error occurrence
■Description
In the helical interpolation, the number of pitches
set in the positioning data "M code" of the linear
interpolation axis is outside the range.
■Operation status at error occurrence
At start: The system will not operate.
During operation: The system stops with the setting
(deceleration stop/sudden stop) of the detailed
parameter 2 Sudden stop selection (stop group 3).
■Description
In the CPU module parameter "Output at error
stop", the setting for LD75 is "Hold".
■Operation status at error occurrence
At start: The system will not operate.
During operation: The system stops with the setting
(deceleration stop/sudden stop) of the detailed
parameter 2 Sudden stop selection (stop group 3).
(Note that the deceleration stop only occurs during
the manual pulse generator operation.)
■Description
Data is not written to the flash ROM.
■Operation status at error occurrence
At start: The system will not operate.
■Description
While data is written to the flash ROM, the power is
turned OFF.
■Operation status at error occurrence
At start: The system will not operate.
■Description
The CPU module resulted in an error.
■Operation status at error occurrence
At start: The system will not operate.
During operation: The system stops with the setting
(deceleration stop/sudden stop) of the detailed
parameter 2 sudden stop selection (stop group 2).
(Note that the deceleration stop only occurs during
the manual pulse generator operation.)
Action/Related buffer memory address/Set
range (Setting with program)
■Action
Correct the number of pitches set in the
positioning data "M code" of the linear
interpolation axis to 0 to 999.
■Buffer memory address
Page 152, Section 5.3
■Setting range
Number of pitches: 0 to 999
■Action
Clear the setting of the CPU module parameter
"Output at error stop".
■Action
The flash ROM is expected to be at the end of its
writable life. Replace the flash ROM with a new
one.
■Action
Return the parameter to that set at the time of
delivery from the plant. ( Page 610, Section
13.2)
■Buffer memory address
Common to axes 1 to 4: 1901
■Setting range
Parameter initialization request
1: Parameter initialization is requested
■Action
Check the code of the error that occurred in the
CPU module and refer to the following.
 MELSEC-L CPU Module User's Manual