Mitsubishi Electric SV13/22 Programming Manual page 132

5. SEQUENCE PROGRAMS AND SFC PROGRAMS
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(2) Relation to the torque limit value designated in the servo program
Start
At normal start, a torque limit value is directed to the servo of the start axis
according to the torque set by the servo program or the torque limit value of the
designated parameter block. At interpolation start, it is directed to the servo of
the interpolation axis.
Execution of the CHGT instruction causes the set torque limit value to be
directed only to the designated axis.
When the servo program starts, the torque limit value to be directed to the
servo at JOG operation start is clamped to that changed by the CHGT
instruction. Namely, the value is effective only when the torque limit value
designated by the servo program or parameter block is lower than that changed
by the CHGT instruction. Clamp processing of this torque limit value varies
from axis to axis.
Start in progress
1) When the following torque limit values are set, they cannot be changed to
values greater than the torque limit value changed by the CHGT instruction.
• Torque limit value at intermediate points during constant speed control or
speed switching control
• Torque limit value at position control switching points during speed/position
switching control
• Torque limit value during speed control II
2) The CHGT instruction can change the torque limit value to any value greater
than the limit value designated in the servo program or parameter block.
(1) Setting must be made in the range 1 to 500(%). When the setting is made
outside this range, a minor error 311 is returned and the torque limit value is not
changed.
(2) When the CHGT instruction is executed for an axis not started yet, a minor
error 312 is returned and the torque limit value is not changed.
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