Mitsubishi A1SD75M3 User Manual page 656

14 TROUBLESHOOTING
Division of Warning
Warning name
warning code
Deceleration and
500 stop speed
change
Speed limit value
501
over
M code ON
503
signal ON start
No operation end
505
setting
FOR to NEXT
506
nesting structure
Speed/position
changeover
508
signal ON during
Positioning
acceleration
operation
Insufficient
509 remaining
distance
Invalid step start
511
information
Illegal external
512
start function
Insufficient
513 movement
amount
Outside
514 command speed
range
Description
A speed change request is issued during
deceleration and stop.
The new speed value given during operation
exceeds the speed limit value.
The M code ON signal is turned ON during
execution of positioning data.
In the block start positioning operation, the
setting at 50th point in the positioning start
data indicates continuation.
There is a nested set of FOR and NEXT.
The changeover signal is turned ON during
acceleration under speed/position changeover
control.
The deceleration distance for a speed change
request is insufficient.
"2: Restart" is specified for the step start
information in the "in step wait" axis operation
status.
"1: Step continue" or "2: Restart" is set to the
step start information in the axis operation
status of "step error occurring", "error
occurring", "waiting", "stopped", "servo has not
been connected" or "in servo OFF".
The "external start function selection" setting in
detail parameter 2 exceeds the setting range.
There is no movement amount necessary for
automatic deceleration.
The command speed exceeds the speed limit
value.
14 - 68
MELSEC-A
Action at occurrence of warning
Speed change is not carried out.
• The speed is controlled to the "speed limit
value."
• The "in speed limit flag" is turned ON.
Execution of positioning data continues.
Operation is terminated.
Operation continues.
A speed change occurs at the nearest value.
(However, the request is ignored if the
operation pattern is continuous path control.)
Step operation does not start.
Nothing occurs in response to the external start
signal.
Immediate stop after the positioning address is
reached
• The command speed is controlled to the
"speed limit value."
• The "in speed limit flag" is set.