Mitsubishi Electric MELDAS C6 Interface Manual page 288

[Indexing operation according to encoder installation direction]
Installation
method
Indexing
Orienting
(Note) Case 1 above applies when using the motor built-in encoder with Z-phase.
[Related signals]
(1) Multi-point orient position data (File register)
(2) Spindle in-position (ORAO: X996)
(3) Spindle orient command (ORC: YD3E)
B con-
Signal name
tact
SPINDLE REVERSE RUN
—
INDEX
[Function]
Reverse run indexing of the spindle is carried out.
[Operation]
The operation is the same as spindle forward run indexing, except that the direction is different.
Refer to the section on spindle forward run indexing.
[Related signal]
(1) Spindle forward run index (WRN: YD3C)
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Case 1
Encoder
Belt
View A
Motor
See from the axis end (view A)
Forward run 0 Reverse run
400H
(90°)
800H (180°)
See from the axis end (view A)
Forward run 0 Reverse run
400H
(90°)
800H (180°)
Signal
abbreviation
WRI
Encoder
Motor
See from the axis end (view A)
Forward run
C00H
C00H
(270°)
(270°)
See from the axis end (view A)
Forward run
C00H
C00H
(270°)
(270°)
1st spindle
YD3D
6-3-91
Case 2
Belt
View A
0 Reverse run
400H
(90°)
800H (180°)
Reverse run
0
400H
(90°)
800H (180°)
2nd spindle 3rd spindle
YD6D YD9D