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MELSEC-
A
14 TROUBLESHOOTING
Division of
error
Error
code
Error name Description Action at occurrence of error
Positioning
operation
500
Illegal condition
data No.
The condition data number specified in the
parameter of special positioning start data is
out of the setting range at the block start in the
special starting method when the conditional
start, wait start, simultaneous start or FOR
(condition) requiring condition data is
commanded.
(1 Condition data No. 10)
Operation is terminated.
501
Simultaneous
start fault
The target axis of simultaneous start is busy.
No axis designation is given in condition data.
The axis designated in condition data is the
own axis.
At start: Operation does not start.
During operation: Operation is terminated.
502
Illegal start data
No.
The positioning data number to be executed
is other than 1 to 600, 7000 to 7010, 9001 to
9003, 9900 or 9901.
Positioning data is not executed.
503
No command
speed
The current speed (“-1”) is specified as a
command speed of the positioning data to be
executed first in positioning start.
Operation at the start is not carried out.