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3 Function Specifications
MITSUBISHI CNC
3-3-8 Lost motion compensation type 4
When the difference between static and dynamic friction is large, the friction torque changes sharply at the
inversion of the travel direction. When the lost motion type 4 is used together with the type 2 or type 3, the
acute change of the friction torque is compensated so that the path accuracy at the travel direction inversion
can be enhanced.
3-3-9 Spindle motor temperature compensation function
As for the low-temperature state of the IM spindle motor, the output characteristic may deteriorate in
comparison with the warm-up state and the acceleration/deceleration time may become long, or the load
display during cutting may become high immediately after operation. This function performs the control
compensation depending on the motor temperature with the thermistor built into the spindle motor and
suppresses the output characteristic deterioration when the temperature is low. Temperature compensation
function is not required for IPM spindle motor in principle.
S12000 Acceleration/deceleration time
With compensation
[Acceleration]
With compensation
[Deceleration]
Without compensation
[Acceleration]
Without compensation
[Deceleration]