Mitsubishi Electric MELSEC-L LD75D, User Manual

Page: 535 / 818

533
CHAPTER 12 CONTROL SUB FUNCTIONS
12
12.
4
F
unct
ions
t
o Lim
it t
he
Cont
rol
(2) Relation between the torque limit function and various controls
The following table shows the relation of the "torque limit function" and various controls.
 : Set according to requirements,  : Setting not required
*1
*1 Setting value is invalid. Use the initial values or setting values within a range where no error occurs.
*2 Shows the torque limit value when "[Cd.22] New torque value" is set to "0".
(3) Control details
The following drawing shows the operation of the torque limit function.
Control type
Torque limit
function
Torque limit value
*2
OPR control
Machine OPR control

[Pr.17] Torque limit setting value
*
After the "[Pr.47] Creep speed" is
reached, this value becomes the "[Pr.54]
OPR torque limit value".
Fast OPR control 
[Pr.17] Torque limit setting value
Major positioning
control
Position
control
1-axis linear control

2- to 4-axis linear interpolation control

1-axis fixed-feed control

2- to 4-axis fixed-feed 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

Other control
Current value changing

Setting value invalid
JUMP instruction, NOP instruction, LOOP to
LEND

Manual control
JOG operation, inching operation

[Pr.17] Torque limit setting value
Manual pulse generator operation  [Pr.17] Torque limit setting value
50%
0%
100%
0%
100% 50%
Torque limited at the parameter
torque limit setting value (100%)
Various operations
PLC READY signal [Y0]
Pr.17 Torque limit setting value
Cd.22 New torque value
Md.35 Torque limit stored value
Torque limited at the parameter
torque limit setting value (50%)