Filter
Top Products
7 - 3
7 AUXILIARY AND APPLIED FUNCTIONS
7.2 Torque Limit Function
This function restricts the generating torque of the servomotor within the setting range.
If the torque required for control exceeds the torque limit value during positioning
control, it restricts with the setting torque limit value.
(1) Setting range of the torque limit value
It can be set within the range of 1 to 1000[%] of the rated torque.
(2) Torque limit value change
Torque limit value can be changed in the Motion program or PLC program, etc. at
a program start or JOG operation start.
(a) Torque limit value is changed to the torque limit value specified with
parameter block at a program start or JOG operation start.
(b) TL instruction (Refer to Section 6.16.15), PB instruction (Refer to Section
6.16.14) or CHGT instruction (Refer to Section 6.16.18) is used to change
the torque limit value in the Motion program.
PB instruction changes it to the torque limit value specified with parameter
block. TL or PB instruction commands to all start axes of Motion program.
CHGT instruction commands to only specified axis.
(c) S(P).CHGT instruction (Refer to Section 3.6) is used to change in the PLC
program.
[Control Details]
(1) Torque limit value at a Motion program start or JOG operation start is changed to
the value specified with parameter block.
(2) When the TL or PB instruction is used to change the torque limit value, the new
value is valid until the next TL or PB instruction is executed. However, it is
clamped at the torque limit value of CHGT/S(P).CHGT instruction.
[Program Example]
(1) It is supported that the torque limit value has been set to 300[%] for each axis by
the CHGT/S(P).CHGT instruction before a program start.
(2) 200[%] is set as the torque limit value of parameter block to execute a program.