Mitsubishi Electric MELDAS 600M Series Instruction Manual page 327

(3) List of data related to absolute position setting
No.
270002 Ref position offset This sets the distance of the absolute position
270003 Move amnt in pwr
270004 G28 verify width
270005 No stopper
270006 Current lim
270007 Max error width
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CHAPTER 1 SCREEN OPERATIONS
Setting item
1 Ref position set 0 : The zero point initialization "270002 Ref position
offset" cannot be set.
1 : Zero point initialization can be executed.
2 : The basic machine coordinate system can be
reset.
reference point looking from the basic machine
coordinate system zero point.
Note that when "1 Ref position set" is set to "0", and
when the absolute position detection alarm has
occurred, this item cannot be set.
(Note) Make the setting with the following procedure.
This checks the difference of the machine positions
OFF when the power is turned OFF and turned ON again. If
excessive, this outputs the axis error "AX0022 Abs
posn tolerance amnt over".
This will be invalid when "0" is set.
Set this to "0" when initializing the zero point, and set
the tolerable value after turning the power ON again.
Not used.
This selects the zero point initialization method
(machine end stopper pushing method or method of
setting reference point without using machine end).
To carry out dogless reference point return, always
select "0" (stopper method).
This sets the current limit value for initialization.
stopper The setting value is a ratio of the limit current in
respect to the stall current.
Calculation expression
This sets the excessive error width for pushing during
absolute position setting using the machine end
stopper method.
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6. Maintenance Screens
Details
• Select the detection method with the axis
specification parameter "Abs On∗", and turn
the power ON again.
• Set "Absol position" "ON".
(Press menu
Abs pos set
• Set "1 Ref position set" to "1".
• Set "270002 Ref position offset"
• Turn the power ON again, and carry out
reference point return.
(Limit current)
(Setting value) =
(Stall current [Peak])
I – 312
Setting range
0 to 2
This is set to "0"
when the power
is turned OFF.
± 99999.999
(Radius value
setting)
.)
0~99999.999
(Radius value
setting)
0 : Check
invalid
0
0 : Stopper
method
1 : Reference
point
method
0~500 (%)
× 100
0~32767 (mm)
(mm)
(mm)