Important Points For Replacement - Mitsubishi Electric MELSERVO-J2S Series Transition Handbook

Part 3: Review on Replacement of MR-J2S-_B_ with MR-J4-_B_

3.8 Important Points for Replacement

(1) When the intermediate connection axis network is OFF, the network of the subsequent axis is not
connected
Even if alarm has occurred, do not switch off the control circuit power supply. When the control circuit
power supply has been switched off, optical module does not operate, and optical transmission of
SSCNET III/H communication is interrupted. Therefore, the next axis servo amplifier displays "AA" at the
indicator and turns into base circuit shut-off. The servo motor stops with starting dynamic brake.
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