5 DATA USED FOR POSITIONING CONTROL

5.1 Types of data

5.1.1 Parameters and data required for control

MELSEC-Q

The parameters and data required to carry out control with the QD75 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.57 )

Positioning parameters

)

Pr.1 to Pr.42 , Pr.150 )

Basic parameters 1

Set according to the machine and applicable

 

Basic parameters 2

 

motor when system is started up.

 

 

 

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

Set according to the system configuration when

 

Detailed parameters 2

 

the system is started up.

 

 

 

 

 

 

OPR parameters

)

Pr.43 to Pr.57 )

Note)

Detailed parameters 2 are data items for using the QD75 functions to the fullest. Set as required.

OPR basic parameters

Set the values required for carrying

 

OPR detailed parameters

 

out OPR control.

 

 

 

 

 

 

Positioning data

Positioning data

Set the data for "major positioning control".

)

Da.1 to Da.10 )

Block start data

) Da.11 to Da.19 )

Block start data

Set the block start data for "high-level positioning control".

) Da.11 to Da.14 )

 

Condition data

Set the condition data for "high-level positioning control".

) Da.15 to Da.19 )

 

Memo data

Set the condition judgment values for the condition

data used in "high-level positioning control".

 

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, detailed parameters 1, and OPR parameters become valid when the PLC READY signal [Y0] turns from OFF to ON. Note, however, that the only valid value of the " Pr.5 Pulse output mode" is the value at the moment when

the PLC READY signal [Y0] 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 [Y0] has been turned ON, the value will not be reset even if another value is set to the parameter and the PLC READY signal [Y0] 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 [Y0].

Even when the PLC READY signal [Y0] is ON, the values or contents of the following can be changed: basic parameters 2, detailed parameters 2, positioning data, and block start data.

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Mitsubishi Electronics QD75P, QD75D Types of data Parameters and data required for control, Positioning parameters
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