Operation Manual

120 Machine mode of operation
3.10 Load monitoring (option)
When face turning with a constant surface speed,
remember that the load monitoring feature will monitor
the spindle up to a maximum of 15 % of the nominal
acceleration defined in the machine parameters. Since
acceleration increases as a result of the change in
rotational speed, the control only monitors the period after
the first cut!
The load monitoring function compares current utilization
values with maximum limit values. For proper comparison,
the utilization values must not be too low. Since the
utilization depends on the cutting conditions, the following
example is provided for your guidance. It illustrates the
required values for the machining of steel:
 Longitudinal turning: Cutting depth > 1 mm
 Recessing: Cutting depth > 1 mm
 Drilling into solid material: Hole diameter > 10 mm