Mitsubishi MELSEC-A series - 6.3.7 Zeroing Procedure

6. PROGRAMMING /MELSEC-A
6.3.7 Zeroing
(1 ) Flow chart
Zero
T
Switch oft PC ready signal (Y1 Dl.
-
b
Write parameters and zeroing
data to buffer memory.
T
Switchon PC readysignal IYlD).
T
Switch on zeroing start (Y13,
Y14).
T
start. (Y13, Y141
After zeroing switch off zeroing
I
I ON
c Complete
(2) Conditions
External
signal
Drive unit READY
OFF
STOP
ON
AD71 ready
(X11
OFF
OFF
Relevant axis busy (X4, X5)
ON
Relevant axis positioning
commenced
(X8, X9I
I
In$r
Relevant axis zeroing complete I
(XC, XDI
OFF
1 1
Relevant axis M coda ON (X€, XFI 1 OFF 1
I PC ready (Y 1 D) I ON I* I
Zeroing data
No error
Others
Repetition
of zeroing start
consecutimly.
Max. twice
I I I 1
Neither axis should be busy after I-] (AGGPP) or lSfOPl (AD71TU)
has been received and positioning has stopped.
*In GPP or AD71TU
test mode, X1 and Y1 D may be off.
Tabla 6.7 Zeroing Conditions
3) Timing
Zeroing rpeed
Creep speed
Speed
I I
I I
I I
PC ready (Y1D I
I
I
I I
I
I
AD71 ready (X11
Positioning complete (X2)---
Zeroing complete (XCI
I I
I
I Stan of other than
I zeroing
I
I
I
I
I
Stop (Y 15)
I
Positioning commenced (X8)
BUSY (X41
Zeroing request (X6I
Zeroing start (Y13)
6-37
IB INA) 65101C