1 FUNCTIONS AND CONFIGURATION
1.4 Function list
19
1
Machine analyzer
function
Analyzes the frequency characteristic of the mechanical system by simply connecting an MR
Configurator2 installed personal computer and the servo amplifier.
MR Configurator2 is necessary for this function.
Robust filter
Improves a disturbance response when a response performance cannot be increased because of a
large load to motor inertia ratio, such as a roll feed axis.
[Pr. PE41]
Slight vibration
suppression control
Suppresses vibration of ±1 pulse generated at a servo motor stop.
[Pr. PB24]
Electronic gear
Positioning control is performed with the position command from the controller multiplied by a set
electronic gear ratio. In the point table mode, position commands can be multiplied by 1/864 to 271470.
In the indexer mode, the position commands can be multiplied by 1/9999 to 9999.
[Pr. PA06]
[Pr. PA07]
Auto tuning
Automatically adjusts the gain to optimum value if load applied to the servo motor shaft varies.
MR-J4-_GF_ section 6.3
Brake unit
Used when the regenerative option cannot provide enough regenerative power.
Can be used for the 5 kW or more servo amplifier.
MR-J4-_GF_ section
11.3
Power regeneration
converter
Used when the regenerative option cannot provide enough regenerative power.
Can be used for the 5 kW or more servo amplifier.
MR-J4-_GF_ section
11.4
Regenerative option
Use a regenerative option when the built-in regenerative resistor of the servo amplifier does not have
sufficient regenerative capacity for a large regenerative power generated.
MR-J4-_GF_ section
11.2
Alarm history clear
Clears alarm histories.
[Pr. PC21]
Input signal selection
(device settings)
The input devices including PC (proportional control (PID control)) can be assigned to certain pins of
the CN3 connector.
[Pr. PD03] to
[Pr. PD05]
Output signal selection
(device settings)
The output devices including MBR (electromagnetic brake interlock) can be assigned to certain pins of
the CN3 connector.
[Pr. PD07] to
[Pr. PD09]
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.
MR-J4-_GF_ section 4.5
Torque limit
Limits the servo motor torque.
[Pr. PA11]
[Pr. PA12]
Test operation mode
JOG operation, positioning operation, motor-less operation, DO forced output, program operation and
single-step feed can be used.
Note that MR Configurator2 is necessary for positioning operation, program operation, and single-step
feed.
operation mode
MR-J4-_GF_ section 4.5
Analog monitor output
Outputs servo status with voltage in real time.
[Pr. PC09]
[Pr. PC10]
MR Configurator2
Using a personal computer, you can perform the parameter setting, test operation, monitoring, and
others.
When using MR Configurator2 with an Ethernet connection, use a servo amplifier with software version
A4 or later and MR Configurator2 with software version 1.70Y or later.
MR-J4-_GF_ section
11.7
Linear servo system
Linear servo systems can be configured using a linear servo motor and linear encoder.
MR-J4-_GF_ chapter 14
Direct drive servo
system
Direct drive servo systems can be configured to drive a direct drive motor.
MR-J4-_GF_ chapter 15
Fully closed loop system
Fully closed loop system can be configured using the load-side encoder.
MR-J4-_GF_ chapter 16
One-touch tuning
Gain adjustment is performed just by one click on MR Configurator2.
MR-J4-_GF_ section 6.2
SEMI-F47 function
This servo amplifier complies with the SEMI-F47 standard. Thus, even when an instantaneous power
failure occurs during operation, the electrical energy charged in the capacitor is used and [AL. 10
Undervoltage] is not triggered.
MR-J4-_GF_ section 7.4
[Pr. PA20]
[Pr. PF25]
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.
MR-J4-_GF_ section 7.3
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 by clicking the Waveform-Display
button on the drive recorder window on MR Configurator2.
However, the drive recorder is not available when:
• The graph function of MR Configurator2 is being used.
• The machine analyzer function is being used.
• [Pr. PF21] is set to "-1".
[Pr. PA23]
STO function
This function is a functional safety that complies with IEC/EN 61800-5-2. You can create a safety
system for the equipment easily.
MR-J4-_GF_ chapter 13
Servo amplifier life
diagnosis function
You can check the cumulative energization time and the number of on/off times of the inrush relay. This
function gives an indication of the replacement time for parts of the servo amplifier including a capacitor
and a relay before they malfunction.
This function is available with MR Configurator2 or via a network.
amplifier life diagnosis
function
Function
Description
Detailed
explanation
