Nominal Speed Value - HEIDENHAIN iTNC 530 Service Manual

9.3.2 Nominal Speed Value

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.
Analog axes: Maximum nominal speed value = 10 V
Analog spindle: Maximum nominal speed value = 20 V
Digital axes and spindle: Maximum nominal value = maximum motor speed from motor table
Problem or error The machine does not reach the set acceleration and braking ramps.
It has lost its dynamic!
Possible remedies No claim for completeness; contact your machine manufacturer!
If possible, write your own experience!
9 – 60
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
HEIDENHAIN Service Manual iTNC 530