Mitsubishi Electric MELDAS 600M Series Instruction Manual page 409

4.7 Recovering the absolute position
(1) Outline
Conventionally with the absolute position detection system, the absolute position is lost for safety
purposes when the parameters such as the motor type, ball screw pitch or gear ratio were
changed. (Note that this is only a process on the NC side, and the data on the amplifier side is not
lost.)
This function is used to recover the original absolute position when the absolute position has been
lost due to changes of the parameters, such as the motor type above. The position can be
recovered without initializing the absolute position basic point again.
(Note) When the absolute position has been lost due to any other causes, the machine zero point
(2) Detailed explanation
1. Select the Zero point set screen.
2. Press the menu Axis select and set the axis name.
3. Press the menu Abs posn set .
4. Set "9" for "1 Ref position set".
To recover other axes, repeat steps 2 and 3.
5. Turn the power ON again.
4.8 Setting the auxiliary axis absolute position
Refer to section "5. Operations Related to Auxiliary axis" for details on setting the auxiliary axis'
absolute position.
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CHAPTER 3 MAINTENANCE
4. Absolute Position Detection
may be deviated. Thus, do not recover the absolute position using this function.
Operation procedure
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The axis name at the top line of the
display will change to the designated axis
name.
The original absolute position will be
recovered.
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Operation