Machine Analyzer (Monitor Area) (Fr-A700 With Vector Control) - Mitsubishi FR-A700 Series Instruction Manual

Machine Analyzer (Monitor area) (FR-A700 with Vector Control)

4.13 Machine Analyzer (Monitor area) (FR-A700 with Vector
Control)
Machine analyzer reads and analyzes the torque and speed data when the inverter oscillates the motor at random torque for
about 0.5 to 4s.
This allows measuring of the response frequency characteristic of speed relative to the motor torque of the machine so that
you can grasp the frequency at which the mechanical system has the resonance point.
The analyzed data can be saved in a file (Export). And the saved data can be read (Import) and displayed. (Refer to page 88)
Select [Machine Analyzer] under [View] menu to display "Machine Analyzer" screen.
Note
The Machine Analyzer function is available for only the system that can perform vector control with encoder (FR-A7AP
required).
Machine Analyzer will not work in the following cases.
Inverter running
When the second motor is selected (Pr. 450 is not "9999")
When the control mode is other than the vector control mode (Pr. 800 is not "0 to 5")
Modbus-RTU communication is selected (Pr. 549 = "1")
If a motor shaft is locked when performing Machine Analyzer, correct data may not be obtained, forced to end Machine
Analyzer. Check the load applied to the motor beforehand.
Before starting Machine Analyzer operation, set the oscillation conditions and oscillation mode.
z
A
No. Name
Waveform data
A
Start
B
Stml Condition
C
Stml Mode
D
Resonance Point, Anti Resonance
E
Point
Y-axis Scale Optimization
F
142
Machine Analyzer screen
Frequency characteristic measuring results are displayed in the Bode diagram (gain,
phase).
Starts the Machine Analyzer.
Sets the oscillation conditions for Machine Analyzer.
Sets the oscillation mode for Machine Analyzer.
Used to directly enter and specify the resonance point and opposite resonance point when
they cannot be detected automatically.
Used to change the scale automatically so that the waveform is contained within the screen.
Function and Description
B
C
D
E
F