Mitsubishi Electric QD75P1N User Manual page 554

12 CONTROL SUB FUNCTIONS
OPR
control
Major
positioning
control
Manual
control
– : Setting not required (Setting value is invalid. Use the initial values or setting values
POINT
The QD75 monitors the creep speed reach during the OPR control and updates the
" Md.35 Torque limit stored value" to the " Pr.54 OPR torque limit value".
Monitoring this value prevents the need to monitor the creep speed reach by the
program. If all controls of torque limit value are carried out by the program (1)
Reading data by the FROM instruction, this function must not be used.
[2] Relation between the torque limit function and various controls
The following table shows the relation of the "torque limit function" and various
controls.
Control type
Machine OPR control
Fast OPR control
1-axis linear control
2- to 4-axis linear
interpolation control
1-axis fixed-feed control
Position
2- to 4-axis fixed-feed
control
control (interpolation)
2-axis circular interpolation
control
3-axis helical interpolation
control
1- to 4-axis Speed control
Speed-position switching control
Position-speed switching control
Current value changing
Other
JUMP instruction, NOP
control
instruction, LOOP to
LEND
JOG operation, Inching operation
Manual pulse generator operation
: Set when required
within a range where no error occurs.)
: Shows the torque limit value when " Cd.22 New torque value" is set to "0".
Torque limit
function
–
–
12 - 30
MELSEC-Q
Torque limit value
Pr.17 Torque limit setting value
After the " Pr.47 Creep speed"
is reached, this value becomes
the " Pr.54 OPR torque limit
value".
Pr.17 Torque limit setting value
Setting value is invalid.
Pr.17 Torque limit setting value
Pr.17 Torque limit setting value