Nominal Speed Value Monitoring - HEIDENHAIN iTNC 530 Service Manual

3.3.2 Nominal speed value monitoring

For the axes, the nominal speed value monitoring is effective only in operation with velocity
feedforward.
For the spindle, it is effective in operation with following error as long as the position control loop
is closed (orientation).
If the nominal speed value calculated by the position controller is greater than the maximum
possible nominal value, the error message NOMINAL SPEED VALUE TOO HIGH <AXIS> appears and
the control-is-ready output is reset.
The machine does not reach the set acceleration and braking ramps.
Problem or error
It has lost its dynamic!
The list does not claim to be complete; ask your machine tool builder!
Possible remedies
You may add your own experiences!
3 – 666
Maximum nominal value
Analog Axes Analog Spindles
10 V 20 V
Caution
Entries in the motor table must not be changed!
For analag axes: Check the tachometer and carbon brushes, adjust the servo amplifier again
For digital axes: New adjustment of the control loops by the machine manufacturer
Overhaul the mechanics
Eliminate the hardware error in the control loop
Digital axes
Maximum motor speed from the motor table
HEIDENHAIN Service Manual iTNC 530