Lenze EVS93xx CrossCutter - Manual (Page 103)

Cross Cutter
Features of the "Cross Cutter" prepared solution
Prepared Solution Servo PLC / ECSxA 1.1 EN 2-89
The function blocks for calculating motion profiles for rotary cross cutters support the calculation
of suitable scaled acceleration curves for generating the torque precontrol signal:
In addition to the project file, in which setpoint generation, signal flow, control of the MCTRL
system block for drive control, etc. are defined, where applications use the Cam software
package, an additional file (LC9 file) is required. This file contains the motion and scaled
acceleration precontrol profiles in the form of tables of values. Scaled acceleration precontrol
profiles are calculated automatically by the CrossCutterMotionCalculation function block without
the user having to make further entries.
Signal flow between function blocks for the generation of the torque precontrol signal looks like
this:
Variable names
Inputs
Global variables (Variable type: VAR_GLOBAL)
Name Data type Value/Meaning
Enable torque precontrol.
This value is displayed in code C3666/000; this variable can be written to this code.
TRUE Torque precontrol is enabled.
g_bTorquePrecontrolEnable BOOL
FALSE Torque precontrol is disabled.
g_nFactorInertia_a INT Adaptation factor for torque precontrol in %
16384 = 100%
This value is displayed in code C3667/000; this variable can be written to this code.
g_nTorquePreAdd_a INT Setvalue of the external torque precontrolin %
16384 = 100%
This value is displayed in code C3639/000; this variable can be written to this code.