4 APPLICABLE FUNCTIONS
4.3 Scale measurement function [G] [B]
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4
Precautions
• When the Mitsubishi Electric servo motor equipped with a batteryless absolute position encoder is used, the absolute
position data is erased under the following conditions.
The servo motor or servo amplifier is replaced.
[Pr. PA22.3 Scale measurement function selection] is set to "0" (disabled) or "2" (use with incremental system).
• In the case of using the Mitsubishi Electric servo motor equipped with a batteryless absolute position encoder, connecting a
servo motor that had not been connected at the startup of the absolute position detection system will cause [AL. 01A Servo
motor combination error].
In such cases, reconnect the servo motor that was connected at the startup of the absolute position detection system to
operate without losing the absolute position data.
However, when [Pr. PF63.1 AL. 01A.6 Servo motor combination error 4 selection] is "1" (disabled), connecting a servo motor
that had not been connected at the startup of the absolute position detection system will cause [AL. 025.2 Scale
measurement encoder - Absolute position erased], erasing absolute position data.
Therefore, check if a correct servo motor is connected.
When replacing a servo motor, refer to the following.
Page 222 Procedure for replacing the scale measurement encoder (Mitsubishi Electric servo motor equipped with a
batteryless absolute position encoder)
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