Mitsubishi Electric MELDAS 600M Series Instruction Manual page 396

3.3 Dog-type reference point return adjustment procedures
Adjust the dog-type reference point return with the following steps.
(1) Set the zero point return parameter.
Set the reference point shift amount to "0".
Set the grid mask amount to "0".
(2) Turn the power OFF and ON, and then execute reference point return.
(3) Display the "ALM/DGN" "SERVO MONITOR" screen on the setting and display unit.
The grid space and grid amount values can be read.
(4) Calculate the grid mask amount with the grid mask amount calculation method.
(5) Display the "ZERO POINT RETURN PARAM." screen.
Set the grid mask amount.
(6) Turn the power OFF and ON, and then execute reference point return.
(7) Display the "ALM/DGN" "SERVO MONITOR" screen on the setting and display unit.
The grid space and grid amount values can be read.
If the grid amount value is approx. half of the grid space, the grid mask amount has been correctly
set.
If the value is not approx. half, repeat the procedure from step (1).
(8) Set the reference point shift.
(9) Turn the power OFF and ON, and then execute reference point return.
(10) Set #1_rfp.
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CHAPTER 3 MAINTENANCE
3. Adjusting the Dog-Type Reference Point Return
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