Mitsubishi Electric MELSEC Q Series, User Manual

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Chapter 16 Troubleshooting
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
Positioning
operation
errors
544 Outside radius range The arc radius exceeds 536870912.
At start : The system does not
operate.
During operation : The system stops
immediately.
545
Control method LOOP
setting error A "0" is set in the repeating times of the
control method "LOOP".
The operation is terminated.
546
Illegal setting of ABS
direction in unit of
degree
The setting value of ABS direction in the
unit of degree is as follows.
• Set outside the setting range.
• A figure other than "0" is set when the
software stroke limit is valid.
At start : The system does not
operate.
During operation : The system decelerates to
a stop.
(Note that, in the continuous
positioning control and
continuous path control, the
system continues operating
with the setting set at the
time of start even if the
setting is changed during
the operation.)
547
Start at HPR
incomplete
• When executing operation setting at HPR
incomplete, positioning was started at
HPR request ON.
• When executing operation setting at HPR
incomplete, control mode switching was
executed at HPR request ON.
At start : The system does not
operate.
At control mode switching: The mode does
not change.
550
Speed-torque control
not supported
Switching to the speed-torque control mode
is requested to a servo amplifier which
does not support the speed-torque control.
During positioning control:
The system stops with the setting of
the detailed parameter 2 rapid stop
selection (stop group 3).
During speed control mode:
The system switches to the position
control mode and stops
immediately.
I/F
errors
800 Hold error
In the CPU module parameter "Output at
error stop", the setting for the Simple
Motion module is "Hold".
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 3).
(Note that the deceleration
stop only occurs during the
manual pulse generator
operation.)
801 Flash ROM write error Data is not written to the flash ROM.
At start: The system does not operate.
802
Flash ROM sum check
error While data is written to the flash ROM, the
power is turned OFF.