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App. 5 MR-J3-200A-RT servo amplifier
Connectors (CNP1, CNP2, and CNP3) and appearance of MR-J3-200A servo amplifier have been changed
from June 2014 production. Model name of the servo amplifier before March 2008 is changed to MR-J3-200A-
RT. The difference between new MR-J3-200A servo amplifier and existing MR-J3-200A-RT servo amplifier is
described in this appendix. Sections within parentheses in the following sections indicate corresponding
sections of the instruction manual.
App. 5.1 Parts identification (1.7.1 Parts identification)
Rating plate
Section 1.5
Operation section
Used to perform status display, diagnostic, alarm and
parameter setting operations.
MODE UP DOWN SET
Cooling fan
Display
The 5-digit, seven-segment LED shows the servo
status and alarm number.
Name/Application
Detailed
explanation
Used to change the
display or data in each
mode.
Used to set data.
Used to change the
mode.
MODE
UP
DOWN SET
Main circuit power supply connector (CNP1)
Connect the input power supply.
RS-422 communication connector (CN3)
Connect the personal computer.
USB communication connector (CN5)
Connect the personal computer.
Analog monitor connector (CN6)
Outputs the analog monitor.
I/O signal connector (CN1)
Used to connect digital I/O signals.
Servo motor power connector (CNP3)
Connect the servo motor.
Control circuit connector (CNP2)
Connect the control circuit power supply/regenerative
option.
Charge lamp
Lit to indicate that the main circuit is charged. While
this lamp is lit, do not reconnect the cables.
Encoder connector (CN2)
Used to connect the servo motor encoder.
Battery connector (CN4)
Used to connect the battery for absolute position data
backup.
Battery holder
Contains the battery for absolute position data backup.
Chapter 6
Chapter 6
Section 3.1
Section 3.3
Section 12.8
Chapter 13
Section 12.8
Section 3.2
Section 3.4
Section 3.2
Section 3.4
Section 3.4
Section 12.1
Section 12.9
Chapter 14
Section 14.3
Protective earth (PE) terminal ( )
Ground terminal.
Fixed part
(3 places)
Section 3.1
Section 3.3
Section 3.1
Section 3.3
Section 3.1
Section 3.3