Procedure Of Replacing A Servo Amplifier Without Losing The Absolute Position Data [B] - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

Procedure of replacing a servo amplifier without losing the
absolute position data [B]
When using existing parameter settings for a servo amplifier with factory settings, check that the settings of
[Pr. PC84 Servo amplifier replacement data 1] to [Pr. PC91 Servo amplifier replacement data 8] are "0" before
connecting the servo amplifier to the controller. Otherwise, [AL. 01A.5 Servo motor combination error 3] may
occur. When [AL. 01A.5] occurs, after changing the setting value of [Pr. PA03.1 Servo motor replacement
preparation] to "1" (enabled), cycle the power and then deactivate [AL. 01A Servo motor combination error].
Perform homing again. After connecting the servo amplifier to the controller, servo parameters will be set
automatically.
To replace a servo amplifier that uses a servo motor with batteryless absolute position encoder as the absolute position
detection system due to a servo amplifier malfunction, use the following procedure.
1.
Setting the parameter
After the communication between the controller and the servo amplifier is established, set [Pr. PF63.2 Servo amplifier
replacement data save selection] to "1" (enabled). After setting, cycle the power, or reset either the controller or the software
to reflect the setting.
2.
Checking the setting values of the controller
After the communication between the controller and the servo amplifier is established, check that the value is reflected to the
following parameters with the controller. Applicable parameters depend on the control mode.
• Semi closed loop control mode: [Pr. PC84 Servo amplifier replacement data 1] to [Pr. PC87 Servo amplifier replacement
data 4]
• Fully closed loop control mode: [Pr. PC88 Servo amplifier replacement data 5] to [Pr. PC91 Servo amplifier replacement
data 8]
In the fully closed loop operation mode, values may be input to [Pr. PC84] to [Pr. PC87].
3.
Replacing the servo amplifier
Power off the servo amplifier before replacing it. The absolute position will not be erased. This enables positioning operation
without performing homing again.
7 ABSOLUTE POSITION DETECTION SYSTEM
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7.1 Outline