If for some reason a MR-J3 servo amplifier needs to be replaced, it is possible to maintain the servo position information.

Design Considerations

On the connection diagram shown below, a special cable is used to connect the servo amplifier to the encoder cable and to the servo system battery. The MR-J3BTCBL03M cable ensures that the battery remains connected to the servo motor and thus the encoder position information is maintained. When the servo amplifier is reconnected, it will pick up the current position from the encoder and thus there is no need to carry out a “home return” action.

Further Information

For further information refer to the GT Designer help files and manuals or contact our support desk (

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