Mitsubishi MELSEC QD75P User Manual page 614

15 TROUBLESHOOTING
Classification Error
of errors code
Error before
501
simultaneous start
Positioning
operation
502 Illegal data No.
503 No command speed
Error name
<When blocks are started
simultaneously>
• The partner axis for simultaneous
start is BUSY.
<When multiple axes are started and
controlled simultaneously>
• The partner axis for simultaneous
start is BUSY.
• The "Simultaneous start axis start
data No." of the start axis is 0 or is
outside the setting range.
• The "Simultaneous start axis start
data No." of those axes other than
the start axis is outside the setting
range.
• The positioning data No. tried to be
executed is outside the ranges of 1
to 600, 7000 to 7004, and 9001 to
9004.
• The designation of a JUMP
destination is executed currently.
• The designation of a JUMP
destination is outside the ranges of
1 to 600.
• At the start of positioning, a current
speed (–1) is set for the command
speed of the positioning data to be
initially executed.
• The current speed is set by speed
control.
• The current speed is set for speed-
position switching control.
15 - 10
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Error Operation status at error occurrence
At start: The system will not operate.
During operation:
The positioning data is not executed.
At the start of positioning, operation
does not start.
MELSEC-Q
The system stops
immediately.