Drive Optimization with HMI Advanced
14.4 Frequency response measurements
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
515
Measuring functions
The following measurement functions are available for measuring the speed control loop:
Measuring type
Measured variable
Reference frequency response
(downstream of the speed setpoint filter)
Actual speed value motor encoder/speed setpoint after
filter
Reference frequency response (upstream
of the speed setpoint filter)
Actual speed value motor encoder/speed setpoint after
filter
Setpoint step change (downstream of the
speed setpoint filter)
Measured variable 1:
•
Speed setpoint downstream of the filter
•
Actual torque value
Measured variable 2: Actual speed value motor encoder
Interference frequency response (fault
downstream of the current setpoint filter)
Actual speed value motor encoder / torque setpoint fct.
generator
Disturbance variable step change (fault
downstream of the current setpoint filter)
Measured variable 1:
•
Torque setpoint fct. generator
•
Actual torque value
Measured variable 2: Actual speed value motor encoder
Speed-controlled system (excitation
downstream of the current setpoint filter)
Actual speed value motor encoder/actual torque value
Frequency response of the mechanical
parts
1)
Actual speed value measuring system 1/actual speed
value measuring system 2
1) The machine axis in question must have both a direct and an indirect measuring system to
determine the frequency response of the mechanical parts.
Measurement
The measurement sequence is divided into the following steps:
1.
Setting the traverse range monitoring and the enable logic
2.
Selecting the measuring type and measured variable
3.
Setting the parameters, softkey "Measuring parameters"
4.
Displaying the measurement results, softkey "Display"
The reference frequency response measurement determines the transmission ratio of the
speed controller.