Mitsubishi Electric MELSEC-L LD75P User Manual page 682

Classification Warning
Warning name
of warnings code
Insufficient
509 remaining
distance
511 Step not possible
Positioning
operation
Illegal external
512
command function
Insufficient
513 movement
amount
Outside command
514
speed range
680
Operation status at warning occurrence
■Description
• At a continuous operation interrupt request, the
distance required deceleration stop is not long
enough.
• At a speed change request, the remaining
distance is shorter than the distance required for
speed change.
■Operation status at warning occurrence
• When a command speed is changed: Change to a
value as near a new speed value as possible.
• When a target position is changed: Adjust the
speed to a value as near the command speed as
possible, and then change to a target position.
(When the operation pattern is a continuous path
control, ignore the operations stated above.)
■Description
Code 1 is set for the step start information when the
step is outside standby.
■Operation status at warning occurrence
The step will not start.
■Description
The detailed parameter 2 "External command
function selection" setting range is exceeded.
■Operation status at warning occurrence
Even if the external command signal is turned ON,
the system will not perform anything.
■Description
The movement amount is not large enough for
automatic deceleration.
■Operation status at warning occurrence
The system stops immediately after it reaches the
positioning address.
■Description
The command speed exceeds the speed limit.
■Operation status at warning occurrence
• The command speed is controlled at the "speed
limit value".
• The "speed limiting flag" turns ON.
Action/Related buffer memory address/Set range
(Setting with program)
■Action
Give a request at the position where there is an
enough remaining distance.
■Action
Do not set a "1" to the step start information when
the step is not in standby state.
( Page 572, Section 12.7.1)
■Buffer memory address
Axis 1: 1546
Axis 2: 1646
Axis 3: 1746
Axis 4: 1846
■Setting range
Step start information
1: Step is continued
2: Re-start is carried out
■Action
Set the detailed parameter 2 "External command
function selection" to within the setting range.
■Buffer memory address
Axis 1: 62
Axis 2: 212
Axis 3: 362
Axis 4: 512
■Setting range
External command function selection: 0, 1, 2, 3
■Action
Set a decelerating address or a movement amount
to the positioning data.
■Buffer memory address
Page 152, Section 5.3
■Action
Set the command speed to within the setting range.
■Buffer memory address
• Refer to  Page 152, Section 5.3 for the
command speed.
Speed limit value
Axis 1: 10, 11
Axis 2: 160, 161
Axis 3: 310, 311
Axis 4: 460, 461
■Setting range
1 to 4000000 [pulse/s], 1 to 2000000000 [10
mm/min or other]
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