Mitsubishi Electric E70 Series, Instruction Manual

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E70 Series Instruction Manual
6.6 Absolute Position Setting Screen
I - 399
(Note 7) Automatic initialization cannot be started in the following cases. The operation message "Can't start" will appear
if starting is attempted.
- When "#0 Absolute posn set" is not set.
- When the "#2 Zero-P" setting is inappropriate.
- When "#2055 pushf" is not set.
- When "Z71 Abs encoder failure 0005" has occurred.
In the above cases, if the "#2 Zero-P" setting is inappropriate, this means that the relation of "#2 Zero-P" and
"#2037 G53ofs" is inappropriate. That is, if "#2 Zero-P" is smaller than the "#2037 G53ofs", the machine end
stopper will be located between the basic machine coordinate system zero point and reference position; this
disables automatic initialization. (Refer to the following left figure.)
If "#2 Zero-P " is set to "0", the machine end stopper direction is unpredictable; this also disables automatic
initialization. (Refer to the following right figure.)
Machine end stopper
(Mechanical basic
position)
Machine end
stopper
(Mechanical
basic position)
Looking from the basic machine coordinate system zero point,
the reference position is located far beyond the machine end
stopper, thus the reference position return cannot be carried out.
#2037 "G53ofs"
Basic machine coordinate
system zero point
Basic machine coordinate
system zero point
"#2 Zero-P"
Reference position
If the "#2 Zero-P" setting is "0", the
basic machine coordinate system
zero point is located on the machine
end stopper.
The direction of axis movement is
thus unpredictable.