Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

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17. SPEED CONTROL OPERATION
17.1.3 Function list
The following table lists the functions of this servo. For details of the functions, refer to the reference field.
Function Description Reference
High-resolution encoder High-resolution encoder of 262144 pulses/rev is used as a servo motor encoder.
Gain switching function
You can switch gains during rotation/stop, and can use input devices to switch gains
during operation.
Section 10.6
Adaptive filter II
The servo amplifier detects mechanical resonance and sets filter characteristics
automatically to suppress mechanical vibration.
Section 10.2
Low-pass filter
Suppresses high-frequency resonance which occurs as the servo system response
is increased.
Section 10.5
Machine analyzer function
Analyzes the frequency characteristic of the mechanical system by simply
connecting an MR Configurator installed personal computer and the servo amplifier.
MR Configurator is necessary for this function.
Robust disturbance
compensation
This function provides better disturbance response when the response level cannot
be increased due to large load to motor inertia ratio, such as for roll feed axes.
MR Configurator is necessary for this function.
Auto tuning
Automatically adjusts the gain to optimum value if load applied to the servo motor
shaft varies.
Section 9.2
S-pattern acceleration /
deceleration time constant
Speed can be increased and decreased smoothly.
Parameter
No.PC13
Regenerative option
Used when the built-in regenerative resistor of the servo amplifier does not have
sufficient regenerative capability for the regenerative power generated.
Section 14.2
Brake unit
Used when the regenerative option cannot provide enough regenerative power.
Can be used for the 5kW or more servo amplifier.
Section 14.3
Power regeneration converter
Used when the regenerative option cannot provide enough regenerative power.
Can be used for the 5kW or more servo amplifier.
Section 14.4
Alarm history clear Clears the alarm history.
Parameter
No.PC18
Torque limit Limits the servo motor torque.
Section 4.6.3
Section 6.11.1
Output signal (DO) forced
output Turns on/off the output signals forcibly independently of the servo status.
Use this function for checking output signal wiring, etc. Section 7.7.4
Section 8.5.7 (4)
Test operation
JOG operation, positioning operation, motor-less operation, DO forced output.
Parameter unit or MR Configurator is required for the test operation mode. Section 7.7
Section 8.5.7
Limit switch
A travel range of the servo motor can be limited using the forward rotation stroke
end (LSP)/reverse rotation stroke end (LSN).