Mitsubishi A1SD75M3 User Manual page 500

12 CONTROL AUXILIARY FUNCTIONS
Various operations
PLC READY signal [Y1D]
Pr.18 Torque limit setting value
Cd.101 Torque output setting value
Cd.30 New torque value
Md.45 Torque limit stored value
*: Since the " Torque output setting value" is greater than the "
Cd.101
(2) Control details
The following drawing shows the operation of the torque limit function.
100%
75%
0%
Torque is limited at the torque output
setting value (75%) of the axis control
data.
75%
Fig. 12.14 Torque limit function operation
(3) Precautions during control
(a) When limiting the torque at the "
confirm that the "
data is set to a value other than "0", the "
validated, and the torque will be limited at that value. (Refer to section
"12.5.4 Torque change function" for details of the "new torque value".)
(b) When the operation is stopped by torque limiting, the droop pulses will
remain in the deviation counter. When the load torque is eliminated,
operation for the amount of droop pulses will be carried out.
50%
0%
Torque is limited at the torque
limit setting value (50%) of the
parameter.*
50%
Pr.18 Torque limit setting value", the torque is limited at the "
Cd.101
Cd.30 New torque value" is set to "0". If this axis control
12 - 28
MELSEC-A
25%
Torque is limited at the torque
output setting value (25%) of
the axis control data.
25%
Torque limit setting value".
Pr.18
Torque output setting value",
New torque value" will be
Cd.30