1. FUNCTIONS AND CONFIGURATION 
1 -  5 
 
Function Description 
Control 
mode 
Detailed 
explanation 
CP CL 
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 
For roll feed axis, etc. of which a response level cannot be increased 
because of the large load to motor inertia ratio, this function improves a 
disturbance response. 
   
[Pr. PE41] 
Slight vibration 
suppression control 
Suppresses vibration of ±1 pulse generated at a servo motor stop. 
   
[Pr. PB24] 
Electronic gear  Position commands can be multiplied by 1/864 to 33935. 
   
[Pr. PA06] 
[Pr. PA07] 
Auto tuning 
Automatically adjusts the gain to optimum value if load applied to the servo 
motor shaft varies. 
   
MR-JE-_A 
Section 6.3 
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-JE-_A 
Section 
11.2 
Alarm history clear  Clears alarm histories. 
   
[Pr. PC18] 
Input signal selection 
(device settings) 
ST1 (Forward rotation start), ST2 (Reverse rotation start), and SON (Servo-
on) and other input device can be assigned to certain pins of the CN1 
connector. 
   
[Pr. PD04] 
[Pr. PD12] 
[Pr. PD14] 
[Pr. PD18] 
[Pr. PD20] 
[Pr. PD44] 
[Pr. PD46] 
Output signal selection 
(device settings) 
The output devices including MBR (Electromagnetic brake interlock) can be 
assigned to certain pins of the CN1 connector. 
   
[Pr. PD24] 
[Pr. PD25] 
[Pr. PD28] 
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 
3.1.8 
MR-JE-_A 
Section 
4.5.8 
Command pulse selection  Supports only A-phase/B-phase pulse trains. 
   
[Pr. PA13] 
Torque limit  Limits the servo motor torque. 
   
[Pr. PA11] 
[Pr. PA12] 
Status display  Shows servo status on the 5-digit, 7-segment LED display 
   
Section 
3.1.2 
External I/O signal display  Shows on/off statuses of external I/O signals on the display. 
   
Section 
3.1.7 
Alarm code output 
If an alarm has occurred, the corresponding alarm number is outputted in 3-
bit code. 
   
Chapter 8 
Test operation mode 
Jog operation/positioning operation/motor-less operation/DO forced 
output/program operation/single-step feed 
Note that MR Configurator2 is necessary for positioning operation, program 
operation, and single-step feed. 
   
Section 
3.1.8 
Section 
3.1.9 
MR-JE-_A 
Section 
4.5.8 
Section 
4.5.9 
Analog monitor output  Outputs servo status with voltage in real time. 
   
[Pr. PC14] 
[Pr. PC15] 
MR Configurator2 
Using a personal computer, you can perform the parameter setting, test 
operation, monitoring, and others. 
   
MR-JE-_A 
Section 
11.7 
One-touch tuning 
Adjusts gains just by pressing buttons on the servo amplifier or by clicking a 
button on MR Configurator2. 
   
MR-JE-_A  
Section 6.2