Selecting The Mr-J2S Renewal Tool; Basic Configuration; Precautions For Replacement - Mitsubishi Electric MELSERVO-J2S Series Manual

Section 2

Selecting the MR-J2S Renewal Tool

２.１ Basic Configuration
[Before replacement]
MR-J2S series
・ Servo amplifier
・ Servo motor
Note 1. Please purchase the Mitsubishi Electric Corporation MR-J4 series servo amplifier and servo motor.
２.２ Precautions for Replacement
(1) Please note that replacement may not be possible when multiple units are set in a line due to the clearance
between the servo amplifiers, the model, and the number of units. (See Chapter 7 of this Appendix regarding
the dimensions)
(2) Depending on the condition of the existing setup, sometimes noise reduction techniques are necessary when
replacing. Check Section 6.2 regarding noise reduction techniques.
(3) When using the existing cables, please consider the remaining life of the cables. If deterioration is significant,
replacing with a new cable is recommended.
(4) Because the conversion cable does not have a long bending life, fix the cable when using.
(5) Contact us if using an encoder cable longer than 50 m with long distance wiring. (For secondary and package
replacement) Contact us when replacing with an HG-KR or MR motor if the existing encoder cable is longer
than 30 m.
(6) No oil seal is attached to the standard type MR-J4 servo motor. Take care when selecting if the existing MR-
J2S servo motor has an attached oil seal. Contact a sales representative if a servo motor with an oil seal is
required.
(7) Depending on machine conditions (inertia, load, etc.), there is a possibility of insufficient servo amplifier
capacity after replacement. Carefully consider the capacity in relation to the replacement.
(8) Although use of dynamic brake resistance standardly equipped to the replacement MR-J4 servo amplifier is
possible, take care because the coasting distance differs depending on the characteristics of the dynamic
brake. In addition, do not use dynamic braking at high frequencies.
(9) Check Section 2.7 of this document for important points to note when using optional or peripheral equipment.
(10) If the existing MR-J2S servo amplifier or servo motor is a special product, contact Mitsubishi Electric
Corporation for assistance.
(11) Although the motor model of the MR-J2S-series motor may not be displayed properly with MR Configurator2,
this is normal. Do not use the MR Configurator2 advanced functions (machine analyzer, gain search, machine
simulation, etc.) because they do not work accurately.
Primary replacement
MR-J4 series (Note1)
• Servo amplifier
• SSCNET conversion unit (B type only)
Secondary replacement
MR-J4 series (Note1)
• Servo motor
Package replacement
MR-J4 series (Note 1)
• Servo amplifier
• SSCNET conversion unit (B type only)
• Servo motor
２-１
2 － 1
For MR-J2S renewal kit
+
• Renewal kit
For MR-J2S renewal kit
+
• Motor side conversion cable
For MR-J2S renewal kit
+
• Renewal kit
• Motor side conversion cable