Mitsubishi Electric MELSEC-Q Series User Manual page 776

Classification Error
Error name
of errors code
803 PLC CPU error
I/F
errors
Flash ROM write
805
number error
Outside unit setting
900
range
Outside pulse number
901
per rotation range
Outside movement
902 amount per rotation
range
Outside unit
903
magnification range
Parameter
setting range
errors
Outside bias speed
906
range
Outside electronic gear
907
setting range
Error
The CPU module resulted in an error.
Data is written to the flash ROM
continuously 25 times or more from the
program.
The set value of the basic parameter 1
"Unit setting" is outside the setting range.
The set value of the basic parameter 1
"Number of pulses per rotation" is outside
the setting range.
The set value of the basic parameter 1
"Movement amount per rotation" is outside
the setting range.
• The set value of the basic parameter 1
"Unit magnification" is outside the setting
range.
• "Movement amount per rotation (AL)" ×
"Unit magnification (AM)" exceeds
2147483648.
• The set value of the basic parameter 1
"Bias speed at start" is outside the setting
range.
• The bias speed exceeds the speed limit.
The set value of the electronic gear is
outside the setting range.
16 - 30
Chapter 16 Troubleshooting
Operation status at error occurrence
At start : The system does not
operate.
During operation : The system stops with the
setting (deceleration
stop/rapid stop) of the
detailed parameter 2 rapid
stop selection
(stop group 2).
(Note that the deceleration
stop only occurs during the
manual pulse generator
operation.)
At start: The system does not operate.
The READY signal [X0] is not turned ON.
The READY signal [X0] is not turned ON.