Mitsubishi Electric MELSEC-L LD75D, User Manual

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679
CHAPTER 15 TROUBLESHOOTING
15
15.
6
List
of
W
a
rnings
Positioning
operation
501
Speed limit value
over
■ Description
The new value exceeds the speed limit value when
the speed is changed during operation.
■
Operation status at warning occurrence
• The speed is controlled with the speed limit value.
• The "speed limiting flag" is turned ON.
■
Action
Set the new speed within the range of 0 to the speed
limit value.
■ Buffer memory address
• New speed value
Axis 1: 1514, 1515
Axis 2: 1614, 1615
Axis 3: 1714, 1715
Axis 4: 1814, 1815
■
Setting range
0 to 4000000 [pulse/s], 0 to 2000000000 [

10
-2
mm/min or other]
■ Action
Set the new speed within the range of 0 to the speed
limit value.
■
Buffer memory address
• 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
-2
mm/min or other]
503
M code ON signal
ON start
■ Description
The M code ON signal is turned ON when the
positioning data is executed.
■
Operation status at warning occurrence
Continue executing the positioning data.
■
Action
Normalize the ON and OFF timings of the "M code
OFF request". (
 Page 580, Section 12.7.3)
■ Buffer memory address
Axis 1: 1504
Axis 2: 1604
Axis 3: 1704
Axis 4: 1804
■
Setting range
M code OFF request
1: The M code ON signal turns OFF.
505
No operation
termination setting
■ Description
In the positioning by block starting, the 50th point of
the positioning start data is set to CONTINUE.
■
Operation status at warning occurrence
The system stops operation.
■ Action
Set the operation termination to the 50th point. (

Page 456, CHAPTER 10)
■ Buffer memory address

Page 152, Section 5.3
■ Setting range
Operation pattern
00: Positioning complete
01: Continuous positioning control
11: Continuous path control
506
FOR to NEXT
nest construction
■ Description
FOR to NEXT is nested.
■
Operation status at warning occurrence
The operation is continued.
■ Action
Make 1 nest construction for FOR to NEXT. ( 
Page 469, Section 10.3.8)
508
Speed-position
switching (during
acceleration)
signal ON
■
Description
The switching signal for speed-position switching
control (INC mode) is turned ON during acceleration.
■ Operation status at warning occurrence
The operation is continued.
■
Action
Do not turn ON the speed-position switching signal
during acceleration. (
 Page 428, Section 9.2.18)
Classification
of warnings
Warning
code
Warning name Operation status at warning occurrence
Action/Related buffer memory address/Set range
(Setting with program)