Mitsubishi Electric M800W Series Connection And Set Up Manual page 531

M800W/M80W Series Connection and Setup Manual
25 Setting the Position Detection System
(Note7) 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 the absolute position parameter "#2055 pushf" is not set.
- When "Z71 Abs encoder failure 0005" has occurred.
Supplementing one of the points above, "Zero-P" setting is inappropriate when "#2 Zero-P" is smaller than the
"#2037 G53ofs" or when "#2 Zero-P" is set to "0" as shown below.
Basic machine coordinate
system zero point
"#2 Zero-P"
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.
IB-1501268-K
Reference position
Machine end stopper
(Mechanical basic
position)
Zero return parameter
"#2037 G53ofs"
492
Machine end
stopper
(Mechanical
basic position)
Basic machine coordinate
system zero point
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.