Mitsubishi Electric MELDAS 600M Series Instruction Manual page 406

(3) Precautions
(Note 1) to (Note 7) in sections (1) and (2) correspond to the following items.
1) The Abs posn set menu key on the Zero point set screen cannot be turned OFF on the
2) If "270005 No stopper" is "0", set it to "1" before setting "1 Ref position set".
3) Before carrying out zero point initialization, the Z-phase grid point must be passed once after
4) With the grid point type, movement into the final entry direction is not possible. The final entry
5) When the grid mask amount (zero point return parameter "150005 Grmask") is set and the
6) When carrying out the dogless-type absolute position detection, the reference point shift
7) When zero point initialization is carried out, the data required for absolute position detection is
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4. Absolute Position Detection
screen. This menu will turn OFF when the power is turned ON again. Automatic operation and
zero point return cannot be carried out while this menu is ON. (An error will occur.)
the power is turned ON. If the grid point is not passed even once after the power is turned ON,
"1" cannot be set in "Ref position set". (An error will occur.) In this case, return one or more
grid back, and repeat the procedures from step 4.
direction refers to the movement direction when the marked point (machine basic position) is
reached with the procedure in step 4.
Final entry direction
8.
"Machine end"
-
Grid point
(Final entry direction 1)
grid mask amount is larger than the distance from the marked point to the grid point, the next
grid point will be the absolute position basic point.
"150008 #1_rfp"
-
Basic machine
coordinate system
zero point
1st reference point
(G53 zero point)
amount (zero point return parameter "150003 G28sft") is invalid.
saved as parameters. Thus, back up the data.
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CHAPTER 3 MAINTENANCE
6.
-
+
Machine
basic
Grid point
position
1. 2. 3. 4. 5.
7. "270002
Ref position
offset"
6. "Machine end"
Grid point
Absolute position
basic point
III – 20
Final entry direction
6.
8.
"Machine end"
+
Machine
basic
Grid point
position
(Final entry direction 1)
6.
7.
+
Marked
point
150005
Grmask