
B–63172EN/01
17. AXES CONTROL
NC FUNCTION
101
Positioning can be performed by butting against a mechanical stop while
applying a torque limit to the servo motor.
A torque limit can be set using three methods: parameter input, DI signal
input, and input from the PMC.
A torque limit set using any of these methods is valid in all modes (EDIT,
AUTO, JOG, and so forth).
With the torque control function, a torque limit can be set using three
methods:
1: Torque control based on parameter input
2: Torque control based on DI signal input
3: Torque control based on input from the PMC
See Table 17.7 for information about about which torque control
method is used.
A torque control method can be selected separately for the each axis.
Table 17.7 Torque control method selection
Parameter
Torque limit enable signal (TRQnE)
(No.1855)
ON OFF
When set to 0 Torque control method
based on DI signal input
Torque control method
based on input from the
PMC
When set to a value other
than 0
Torque control method based on parameter input
n : 1 or 8
(1)Position and alarm check when a torque limit is applied
An excessive position error and stop/move error can be ignored by
setting parameter TIP, TAL (No. 1803#0, #1) only when a torque limit
is applied.
17.7
TORQUE LIMIT
FUNCTION
Selecting a torque
control method