13 Drive Optimization using HMI Advanced
13.4 Frequency response measurement
A low offset of a fed motor revolutions per minute can be selected to rule out an
influence of the static friction.
The Offset is run up using an acceleration ramp.
The acceleration value is defined for one
check MD 32300: MAX_AX_ACCEL
check MD 35200: GEAR_STEP_SPEEDCTRL_ACCEL
MD 35210: GEAR_STEP_POSCTRL_ACCEL
The following applies:
The actual measuring function becomes active only when the offset value is
This value represents the delay between measured data recording/test setpoint
output and the injection of the offset.
Fig. 13-3 Setpoint signal with measuring function speed control loop – step
The measurement parameters and the measurement results (diagrams) can be
loaded and/or saved using the soft key File functions.
Acceleration value = 0, no ramp
Acceleration value > 0, ramp active
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SINUMERIK 840Di Manual (HBI) – 06.03 Edition