Mitsubishi Electric MR-J4, Instruction Manual

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18. MR-J4-03A6 SERVO AMPLIFIER
18 - 1
18. MR-J4-03A6 SERVO AMPLIFIER
The following item is the same as 100 W or more MR-J4-_A_(-RJ) servo amplifiers. Refer to the section of
the detailed explanation field for details.
Item Detailed explanation
Parameter Chapter 5
Normal gain adjustment Chapter 6
Special adjustment function Chapter 7
Troubleshooting Chapter 8
Absolute position detection system Chapter 12
Note. Refer to section 18.5.4 when operating one-touch tuning by using push button switch.
18.1 Functions and configuration
18.1.1 Summary
MR-J4-03A6 servo amplifier is MELSERVO-J4 series 48 V DC and 24 V DC power compatible ultra-small
capacity servo amplifier.
The servo amplifier has position, speed, and torque control modes. In the position control mode, the
maximum pulse train of 4 Mpulses/s is supported. Further, it can perform operation with the control modes
switched, e.g. position/speed control, speed/torque control and torque/position control. Hence, it is
applicable to a wide range of fields, not only precision positioning and smooth speed control of machine tools
and general industrial machines but also line control and tension control.
With one-touch tuning and real-time auto tuning, you can automatically adjust the servo gains according to
the machine.
The following shows the differences with 100 W or more MR-J4-_A_(-RJ) servo amplifier.
Category Item
Differences
Related parameter
MR-J4-_A_(-RJ)
100 W or more
MR-J4A-03A6
Power supply
Main circuit power supply
200 V AC/400 V AC/
100 V AC
48 V DC/24 V DC [Pr. PC27]
Control circuit power supply
200 V AC/400 V AC/
100 V AC
24 V DC
Functional safety STO function Compatible
Encoder Encoder resolution 4194304 pulses/rev 262144 pulses/rev
Status display 7-segment LED display digits 5-digits 3-digits [Pr. PC36]
Analog monitor output Output voltage range ±10V 5 V ± 4 V [Pr. PC14]/[Pr. PC15]
Dynamic brake
Stop system
Stop with dynamic
brake
Stop with electronic
dynamic brake
[Pr. PF09]/[Pr. PF15]
Regenerative option Regenerative option selection Compatible [Pr. PA02]
Operation mode Fully closed loop control mode Compatible [Pr. PA01]
Linear servo motor control
mode
Compatible
DD motor control mode Compatible
Function SEMI-F47 function Compatible [Pr. PA20]/[Pr. PF25]
J3A electronic gear setting
value compatibility mode
Compatible [Pr. PA21]
Instantaneous power failure
tough drive
Compatible [Pr. PA20]/[Pr. PF25]
Parameter unit Compatible [Pr. PF34]