Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 406 / 590

Part 6: Common Reference Material
6 - 129
The following shows functions used with the J3 extension function.
Function Description
Gain switching function
(Vibration suppression control
2 and model loop gain)
You can switch gains during rotation/stop, and can use input devices to switch gains during operation.
Advanced vibration
suppression control II
This function suppresses vibration at the arm end or residual vibration.
Machine resonance
suppression filter 3
Machine resonance
suppression filter 4
Machine resonance
suppression filter 5
This is a filter function (notch filter) which decreases the gain of the specific frequency to suppress the
resonance of the mechanical system.
Shaft resonance suppression
filter
When a load is mounted to the servo motor shaft, resonance by shaft torsion during driving may
generate a mechanical vibration at high frequency. The shaft resonance suppression filter suppresses
the vibration.
Robust filter
This function provides better disturbance response in case low response level that load to motor
inertia ratio is high for such as roll send axes.
One-touch tuning
Gain adjustment is performed just by one click on a certain button on MR Configurator2.
MR Configurator2 is necessary for this function.
Tough drive function
This function makes the equipment continue operating even under the condition that an alarm occurs.
The tough drive function includes two types: the vibration tough drive and the instantaneous power
failure tough drive.
SEMI-F47 function (Note 1)
Enables to avoid triggering [AL. 10 Undervoltage] using the electrical energy charged in the capacitor
in case that an instantaneous power failure occurs during operation. Use a 3-phase for the input
power supply of the servo amplifier. Using a 1-phase 200 V AC for the input power supply will not
comply with SEMI-F47 standard.
Drive recorder function
This function continuously monitors the servo status and records the status transition before and after
an alarm for a fixed period of time. You can check the recorded data on the drive recorder window on
MR Configurator2 by clicking the "Graph" button.
However, the drive recorder will not operate on the following conditions.
1. You are using the graph function of MR Configurator2.
2. You are using the machine analyzer function.
3. [Pr. PX30] is set to "-1".
4. The controller is not connected (except the test operation mode).
5. An alarm related to the controller is occurring.
Power monitoring function
This function calculates the power running energy and the regenerative power from the data in the
servo amplifier such as speed and current. Power consumption and others are displayed on MR
Configurator2 in the system of SSCNET III/H. Since the servo amplifier sends data to a servo system
controller, you can analyze the data and display the data on a display.
Machine diagnosis function
From the data in the servo amplifier, this function estimates the friction and vibrational component of
the drive system in the equipment and recognizes an error in the machine parts, including a ball screw
and bearing.
MR Configurator2 is necessary for this function.
Lost motion compensation
function (Note 2)
This function improves the response delay occurred when the machine moving direction is reversed.
This is used with servo amplifiers with software version B4 or later. Check the software version of the
servo amplifier using MR Configurator2.
Note 1. For servo system controllers which are available with this, contact your local sales office.
2. It is not available with MR-J4W2-_B servo amplifiers.