sh030106u.pdf - 第17页
8 MEMO
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17.1.2 Operation modes supported by J3 compatibility mode .......................................................... 17- 1
17.1.3 J3 compatibility mode supported function list ........................................................................ 17- 2
17.1.4 How to switch J4 mode/J3 compatibility mode ...................................................................... 17- 5
17.1.5 How to use the J3 compatibility mode ................................................................................... 17- 6
17.1.6 Cautions for switching J4 mode/J3 compatibility mode ......................................................... 17- 7
17.1.7 Cautions for the J3 compatibility mode .................................................................................. 17- 8
17.1.8 Change of specifications of "J3 compatibility mode" switching process ................................ 17- 9
17.1.9 J3 extension function ............................................................................................................ 17-11
17.2 Master-slave operation function ................................................................................................... 17-68
17.3 Scale measurement function ....................................................................................................... 17-72
17.3.1 Functions and configuration .................................................................................................. 17-72
17.3.2 Scale measurement encoder ................................................................................................ 17-75
17.3.3 How to use scale measurement function .............................................................................. 17-79
APPENDIX App.- 1 to App.-58
App. 1 Peripheral equipment manufacturer (for reference) .............................................................. App.- 1
App. 2 Handling of AC servo amplifier batteries for the United Nations Recommendations on the
Transport of Dangerous Goods ............................................................................................. App.- 1
App. 3 Symbol for the new EU Battery Directive .............................................................................. App.- 4
App. 4 Compliance with global standards ........................................................................................ App.- 4
App. 5 MR-J3-D05 Safety logic unit ................................................................................................. App.- 5
App. 6 How to adjust the error excessive alarm level ..................................................................... App.-23
App. 7 How to replace servo amplifier without magnetic pole detection ......................................... App.-24
App. 8 Two-wire type encoder cable for HG-MR/HG-KR ................................................................ App.-25
App. 9 SSCNET III cable (SC-J3BUS_M-C) manufactured by Mitsubishi Electric System &
Service ................................................................................................................................. App.-27
App. 10 Analog monitor ..................................................................................................................... App.-27
App. 11 Special specif ication ............................................................................................................. App.-39
App. 12 Driving on/off of main circuit power supply with DC power supply ...................................... App.-43
App. 13 Optional data monitor function ............................................................................................. App.-45
App. 14 STO function with SIL 3 certification .................................................................................... App.-49
App. 15 When using the servo amplifier with the DC power supply input ......................................... App.-51
App. 16 Status of general-purpose AC servo products for compliance with the China RoHS
directive ................................................................................................................................ App.-55
App. 17 Encoder output pulse setting method................................................................................... App.-57
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MEMO
1. FUNCTIONS AND CONFIGURATION
1 - 1
1. FUNCTIONS AND CONFIGURATION
1.1 Summary
The Mitsubishi Electric MELSERVO-J4 series general-purpose AC servo has further higher performance and
higher functions compared to the previous MELSERVO-J3 series.
MR-J4-_B_ servo amplifier is connected to controllers, including a servo system controller, on the high-speed
synchronous network SSCNET III/H. The servo amplifier directly receives a command from a controller to
drive a servo motor.
MELSERVO-J4 series compatible rotary servo motor is equipped with 22-bit (4194304 pulses/rev) high-
resolution absolute encoder. In addition, speed frequency response is increased to 2.5 kHz. Thus, faster and
more accurate control is enabled as compared to MELSERVO-J3 series.
MR-J4-_B_ servo amplifier operates MELSERVO-J4 series compatible rotary servo motors, linear servo
motors, and direct drive motors as standard.
With one-touch tuning and real-time auto tuning, you can automatically adjust the servo gains according to
the machine.
The tough drive function and the drive recorder function, which are well-received in the MELSERVO-JN
series, have been improved. The MR-J4 servo amplifier supports the improved functions. Additionally, the
preventive maintenance support function detects an error in the machine parts. This function provides strong
support for the machine maintenance and inspection.
SSCNET III/H achieves high-speed communication of 150 Mbps full duplex with high noise tolerance due to
the SSCNET III optical cables. Large amounts of data are exchanged in real-time between the controller and
the servo amplifier. Servo monitor information is stored in the upper information system and is used for
control.
On the SSCNET III/H network, the stations are connected with a maximum distance of 100 m between them.
This allows you to create a large system.
The MR-J4-_B_ servo amplifier supports the STO (Safe Torque Off) function. When the servo amplifier is
connected to a SSCNET III/H-compatible servo system controller, in addition to the STO function, the servo
amplifier also supports the SS1 (Safe Stop 1), SS2 (Safe Stop 2), SOS (Safe Operating Stop), SLS (Safely-
Limited Speed), SBC (Safe Brake Control) and SSM (Safe Speed Monitor) functions.
The servo amplifier has a USB communication interface. Therefore, you can connect the servo amplifier to
the personal computer with MR Configurator2 installed to perform the parameter setting, test operation, gain
adjustment, and others.
In MELSERVO-J4 series, servo amplifiers with CN2L connector is also available as MR-J4-_B_-RJ. By using
CN2L connector, an A/B/Z-phase differential output method external encoder can be connected to the servo
amplifier. In a fully closed loop system, a four-wire type external encoder is connectable as well. The
following table indicates the communication method of the external encoder compatible with MR-J4-_B_ and
MR-J4-_B_-RJ servo amplifiers.