12CONTROL SUB FUNCTIONS

[2]Precautions during control

MELSEC-Q

(1) If a value besides "0" is set in the "

Cd.22

New torque value", the torque

generated by the servomotor will be limited by that value. To limit the torque

with the value set in " Pr.17

New torque value" to "0".

Torque limit setting value", set the "

Cd.22

(2) The "

Cd.22

New torque value" is validated when written to the QD75.

(Note that it is not validated from the time the power supply is turned ON to the time the PLC READY signal (Y0) is turned ON.)

(3)If the setting value is outside the setting range, an axis warning "Outside new torque value range" (warning code: 113) will occur and the torque will not be changed.

(4)If the time to hold the new torque value is not more than 100ms, a torque change may not be executed.

[3]Setting the torque change function start signal

To use the "torque change function", write the data shown in the following table to the QD75 using the sequence program.

The set details are validated when written to the QD75.

 

 

 

 

Setting

 

Buffer memory address

 

 

Setting item

Setting details

 

 

 

 

 

 

Axis

Axis

Axis

Axis

 

 

value

 

 

 

 

 

1

2

3

4

 

 

 

 

 

 

 

 

 

New torque value

 

 

 

 

 

 

 

Cd.22

 

Set the new torque limit value.

1525

1625

1725

1825

 

 

 

 

 

 

 

 

 

 

Refer to Section 5.7 "List of control data" for details on the setting details.

 

 

 

 

12 - 49

Page 525
Image 525
Mitsubishi Electronics QD75D, QD75P user manual Setting the torque change function start signal, If a value besides 0 is set