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5 DATA USED FOR POSITIONING CONTROL
5.1 Types of data
5.1.1 Parameters and data required for control
The parameters and data required to carry out control with the AD75 include the
"setting data", "monitor data" and "control data" shown below.
Setting data
(Data set beforehand according to the machine and application, and stored in the flash ROM.)
Parameters
)
Pr.1
to
Pr.58
Positioning data
)
Da.1
to
Da.9
Positioning start
information
Da.10
to
)
Da.18
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Positioning
Basic parameters 1
parameters
Basic parameters 2
to
)
Pr.1
Pr.44
Note)
If the setting of the basic parameters 1 is incorrect, the rotation direction
may be reversed, or no operation may take place.
Detailed parameters 1
Detailed parameters 2
Note)
Detailed parameters 2 are data items for using the AD75 functions to the fullest.
Set as required.
Zero point
return
Zero point return basic parameters
parameters
Zero point return detailed parameters
to
)
Pr.45
Pr.58
Positioning data
Start block data
Da.10
to
)
Da.13
Condition data
Da.14
to
Da.18
)
Memo data
Indirectly specification data
◊
The data is set with the sequence program or peripheral device.
In this chapter, the method using the peripheral device will be explained.
(Refer to "Point" on the next page.)
◊
The basic parameters 1, deteailed parameters 1, and zero point return parameters become valid
when the PLC READY signal [Y1D] turns from OFF to ON. Note, however, that the only valid
value of the "
Pulse output mode" is the value at the moment when the PLC READY signal
Pr.5
[Y1D] turns from OFF to ON for the first time after the power is switched ON or the PLC CPU
is reset. Once the PLC READY signal [Y1D] has been turned ON, the value will not be reset
even if another value is set to the parameter and the PLC READY signal [Y1D] is turned from
OFF to ON.
◊
The basic parameters 2 and detailed parameters 2 become valid immediately when they are
written to the buffer memory, regardless of the state of the PLC READY signal [Y1D].
◊
Even when the PLC READY signal [Y1D] is ON, the values or contents of the following can
be changed: basic parameters 2, detailed parameters 2, positioning data, and positioning
start information.
Set according to the machine and applicable
motor when system is started up.
Set according to the system configuration when
the system is started up.
Set the data for "main positioning control".
Set the start block data for "advanced positioning control".
Set the condition data for "advanced positioning control".
Set the condition judgment values for the condition
data used in "advanced positioning control".
Set when indirectly specificating the positioning
data No. .
5 - 2
MELSEC-A
Set the values required for carrying
out zero point return control.
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