|Question:||Can the Sigma II absolute encoder data be preserved when the encoder cable is removed?|
|Answer:||It is possible to back-up absolute encoder data by using a battery backup cable. The Sigma II absolute encoder does not have a high-storage capacitor like the Sigma I, so multi-turn position data will be lost within a few seconds once the encoder cable is disconnected. Normally, the encoder cable is not disconnected, and the data will be retained by the backup battery installed in the amplifier. In some cases, however, it may be necessary to disconnect the encoder cable. But the system must be able to backup the data in the absolute encoder. In these cases, it is recommended to use a battery backup cable. |
This battery backup cable is connected between the motor and the encoder cable. It has a battery built-in to the cable, so the encoder cable is no longer needed to bring the battery power from the amplifier. The attached document contains more information on how to construct such a cable.
Connect the 3.6VDC battery to the BAT+ and BAT- of the motor encoder:
BAT+ = pin3
BAT- = pin4
(JZSP-CSP12, 0.3meter cable, non-stock)
|Product:||SGDH Sigma II |
|Link to related files:|
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