Mitsubishi Electric MELSEC-L LD75D, User Manual

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CHAPTER 9 MAJOR POSITIONING CONTROL
9
9.
2 Set
ting t
he Pos
itioning
D
at
a
9.2.25
LEND
The LEND is used to return the operation to the top of the repeat (LOOP to LEND) loop.
(1) Operation
When the repeat cycle designated by the LOOP becomes 0, the loop is terminated, and the next positioning data
No. processing is started. (The operation pattern, if set to "Positioning complete", will be ignored.)
When the operation is stopped after the repeat operation is executed by designated cycles, the dummy
positioning data (for example, incremental positioning without movement amount) is set next to LEND.
The operation for the case when Positioning complete (00) is set to LOOP or LEND is shown below.
(2) Positioning data setting example
The following table shows the setting examples when "LEND" is set in positioning data No. 8 of axis 1.
Refer to

Page 152, Section 5.3 for information on the setting details.
(3) Restrictions
• Ignore the "LEND" before the "LOOP" is executed.
Positioning data No. Operation pattern Control system Condition Operation
1 Continuous control ABS2
Executed in the order of
the positioning data No. 1

2

3

4

5

2

3

4

5

6.
(The operation patterns of
the positioning data Nos.
2 and 5 are ignored.)
2 Positioning complete LOOP Number of loop cycles: 2
3 Continuous path control ABS2
4 Continuous control ABS2
5 Positioning complete LEND
6 Positioning complete ABS2
Setting item
Setting
example
Setting details
Axis 1
positioning
data No. 8
[Da.1] Operation pattern  Setting not required. (Setting value will be ignored.)
[Da.2] Control system LEND Set the LEND.
[Da.3] Acceleration time No.

Setting not required. (Setting value will be ignored.)
[Da.4] Deceleration time No.  Setting not required. (Setting value will be ignored.)
[Da.5] Axis to be interpolated  Setting not required. (Setting value will be ignored.)
[Da.6]
Positioning
address/movement amount

Setting not required. (Setting value will be ignored.)
[Da.7] Arc address

Setting not required. (Setting value will be ignored.)
[Da.8] Command speed  Setting not required. (Setting value will be ignored.)
[Da.9] Dwell time  Setting not required. (Setting value will be ignored.)
[Da.10] M code

Setting not required. (Setting value will be ignored.)