Compensation Functions For Suspended Axes; Electronic Counterweight - Siemens SINUMERIK 840D sl Function Manual

K3: Compensations

5.10 Compensation functions for suspended axes

5.10 Compensation functions for suspended axes
5.10.1

Electronic counterweight

Axis without counterweight
For axes that have a weight load without counterweight, then after the brake is released, the
hanging (suspended) axis drops and the following response is obtained:
Figure 5-25
"Electronic counterweight" function
A hanging (suspended) axis can almost be completely prevented from dropping (sagging)
using the "electronic counterweight" function.
The electronic counterweight prevents axes with a weight load from sagging when the closed-
loop control is switched on. After releasing the brake, the constant counterweight torque
maintains the position of the vertical axis.
344
Drop of a hanging axis without counterweight
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions