Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 602

[Appendix 2] Introduction to Renewal Tool
Note 1. Purchase from Mitsubishi Electric.
2. The actual reduction ratio is different when replacing a servo motor. Note that it is necessary to adjust the electronic gear after
checking the actual reduction ratio of the servo motor. Refer to Part 8 for details.
3. Note that because the flange dimensions and shaft end dimensions are not compatible it is necessary to change the servo
motor shaft connection portion, including the mounting portion and the coupling/pulley when replacing the servo motor. Refer to
Part 8 for details.
4. Before replacing the servo motor, the moment of inertia is different from the servo motor before replacement. Take note of the
load to motor inertia ratio. Review of the operation pattern is necessary depending on the existing device. Refer to Part 8 for
details.
5. If the gain of the existing servo amplifier is extremely high, there may be slight differences in characteristics upon primary
replacement. Make sure to set the gain again.
6. Note that it is because the total length of the servo motor becomes shorter, the servo motor connector may interfere with the
device side.
7. Laying a new electromagnetic brake cable is required when performing a secondary replacement or simultaneous replacement
of a servo motor with brake. Use a servo motor electromagnetic brake cable (SC-BKC1CBL_M-L or SC-BKC1CBL_M-H) made
by Mitsubishi Electric System & Service Co., Ltd.
8. If the servo motor is replaced, it is necessary to change the crimped terminal of the existing power supply cable. Refer to Part 8
for details.
9. There is no cooling fan in the replacement servo motor when the servo motor is replaced. Because the existing wiring becomes
unnecessary, insulate as needed.
10. Simultaneous replacement is recommended because replacing the servo amplifier again is necessary at secondary
replacement.
11. The renewal kit cannot be used for secondary or simultaneous replacement due to large differences in servo amplifier shape
resulting from changes in servo amplifier capacity.
12. The software version for primary replacement of servo amplifiers are different depending on the servo motor. Consult local
sales office when making an order.
13. Contact local sales office regarding replacement of existing models that have not been listed.
14. The replacement servo amplifier, SSCNET conversion unit, and renewal kit are the same for primary, secondary, and
simultaneous replacement.
15. When replacing a servo motor, the torque characteristics are different compared with the servo motor before replacement.
Refer to Part 8 for details.
16. This is not compatible with primary replacement. Perform a simultaneous replacement of a servo amplifier and a servo motor.
17. When performing a replacement of a servo motor, a new encoder cable is required to be laid. Contact Mitsubishi Electric
System & Service Co., Ltd. if a new cable required.
18. A conversion cable on the servo amplifier side is not included in the package. Purchase the following cable set separately
according to a servo amplifier to be used and its capacity.
MR-J4-700A4 or less: SC-J2SJ4CSET-01
MR-J4-11KA4 or more: SC-J2SJ4CSET-02
MR-J4-700B4 or less: SC-J2SBJ4CSET-01
MR-J4-11KB4 or more: SC-J2SBJ4CSET-02
19. When combining, a renewal kit is not required. Purchase only a conversion cable on the servo amplifier side, if necessary.
20. This servo amplifier is required to be used in combination with the converter unit MR-CR55K.
21. This servo amplifier is required to be used in combination with the converter unit MR-CR55K4.
Appendix 2-65