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9 MAIN POSITIONING CONTROL
9.2 Setting the positioning data
9.2.1 Relation between each control and positioning data
The setting requirements and details for the setting items of the positioning data to be
set differ according to the " Da.2 Control method".
The following table shows the positioning data setting items corresponding to the
different types of control. Details and settings for the operation of each control are
shown in section 9.2.2 and subsequent sections.
(In this section, it is assumed that the positioning data setting is carried out using the
AD75 software package.)
Main positioning control
Positioning data setting items
Independent
positioning control
Operation
Continuous positioning
Da.1
pattern
control
Continuous path
control
Control method
Da.2
Acceleration time No.
Da.3
Deceleration time No.
Da.4
Positioning address/movement
Da.5
amount
Arc address
Da.6
Command speed
Da.7
Da.8
Dwell time
M code
Da.9
: Always set
: Set as required ("–" when not set)
– : Setting not required (Setting value is invalid. Use the initial values or setting values within a range where no error occurs.)
* : The "ABS (absolute) method" or "INC (incremental) method" can be used for the control method.
REMARK
•
It is recommended that the "positioning data" be set whenever possible with the AD75 software package.
Execution by sequence program uses many sequence programs and devices. The execution becomes
complicated, and the scan times will increase.
•
A "Block transmission" is required when setting No. 101 and subsequent positioning data using a
sequence program.
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Position control
Fixed-
dimension
Circular
Linear 1
feed1
interpolation
Circular right
Linear 2
Fixed-
dimension
Circular left
*
feed 2
*
–
–
: Setting not possible
9 - 22
Forward
run
Forward run
Speed
speed/posi-
limited
tion
Reverse
Reverse run
run
speed/posi-
*
tion
Speed
limited
–
–
–
–
: Setting limited
MELSEC-A
Other control
Current
JUMP
value
command
change
–
–
–
–
Change
destination
–
address
–
–
–
–
JUMP
destination
–
positioning
data No.
–
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